diff options
| author | James Hogan <jhogan@kernel.org> | 2017-10-24 13:07:54 +0100 |
|---|---|---|
| committer | James Hogan <jhogan@kernel.org> | 2018-02-22 11:07:21 +0000 |
| commit | bb6fb6dfcc17cddac11ac295861f7608194447a7 (patch) | |
| tree | 47ee071a415546dd01adbf628f61acb80473d476 /arch/metag/include | |
| parent | 91ab883eb21325ad80f3473633f794c78ac87f51 (diff) | |
metag: Remove arch/metag/
The earliest Meta architecture port of Linux I have a record of was an
import of a Meta port of Linux v2.4.1 in February 2004, which was worked
on significantly over the next few years by Graham Whaley, Will Newton,
Matt Fleming, myself and others.
Eventually the port was merged into mainline in v3.9 in March 2013, not
long after Imagination Technologies bought MIPS Technologies and shifted
its CPU focus over to the MIPS architecture.
As a result, though the port was maintained for a while, kept on life
support for a while longer, and useful for testing a few specific
drivers for which I don't have ready access to the equivalent MIPS
hardware, it is now essentially dead with no users.
It is also stuck using an out-of-tree toolchain based on GCC 4.2.4 which
is no longer maintained, now struggles to build modern kernels due to
toolchain bugs, and doesn't itself build with a modern GCC. The latest
buildroot port is still using an old uClibc snapshot which is no longer
served, and the latest uClibc doesn't build with GCC 4.2.4.
So lets call it a day and drop the Meta architecture port from the
kernel. RIP Meta.
Signed-off-by: James Hogan <jhogan@kernel.org>
Link: https://lkml.kernel.org/r/95906b76-6ce1-3f84-eaba-c29b4ae952eb@roeck-us.net
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Graham Whaley <graham.whaley@gmail.com>
Cc: linux-metag@vger.kernel.org
Diffstat (limited to 'arch/metag/include')
80 files changed, 0 insertions, 9182 deletions
diff --git a/arch/metag/include/asm/Kbuild b/arch/metag/include/asm/Kbuild deleted file mode 100644 index 913c779979df..000000000000 --- a/arch/metag/include/asm/Kbuild +++ /dev/null @@ -1,33 +0,0 @@ -generic-y += bugs.h -generic-y += current.h -generic-y += device.h -generic-y += dma.h -generic-y += emergency-restart.h -generic-y += exec.h -generic-y += extable.h -generic-y += fb.h -generic-y += futex.h -generic-y += hardirq.h -generic-y += hw_irq.h -generic-y += irq_regs.h -generic-y += irq_work.h -generic-y += kdebug.h -generic-y += kmap_types.h -generic-y += kprobes.h -generic-y += local.h -generic-y += local64.h -generic-y += mcs_spinlock.h -generic-y += mm-arch-hooks.h -generic-y += pci.h -generic-y += percpu.h -generic-y += preempt.h -generic-y += sections.h -generic-y += serial.h -generic-y += switch_to.h -generic-y += timex.h -generic-y += trace_clock.h -generic-y += unaligned.h -generic-y += user.h -generic-y += vga.h -generic-y += word-at-a-time.h -generic-y += xor.h diff --git a/arch/metag/include/asm/atomic.h b/arch/metag/include/asm/atomic.h deleted file mode 100644 index 97ae189c2dd8..000000000000 --- a/arch/metag/include/asm/atomic.h +++ /dev/null @@ -1,49 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_ATOMIC_H -#define __ASM_METAG_ATOMIC_H - -#include <linux/compiler.h> -#include <linux/types.h> -#include <asm/cmpxchg.h> -#include <asm/barrier.h> - -#if defined(CONFIG_METAG_ATOMICITY_IRQSOFF) -/* The simple UP case. */ -#include <asm-generic/atomic.h> -#else - -#if defined(CONFIG_METAG_ATOMICITY_LOCK1) -#include <asm/atomic_lock1.h> -#else -#include <asm/atomic_lnkget.h> -#endif - -#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) - -#define atomic_dec_return(v) atomic_sub_return(1, (v)) -#define atomic_inc_return(v) atomic_add_return(1, (v)) - -/* - * atomic_inc_and_test - increment and test - * @v: pointer of type atomic_t - * - * Atomically increments @v by 1 - * and returns true if the result is zero, or false for all - * other cases. - */ -#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) - -#define atomic_sub_and_test(i, v) (atomic_sub_return((i), (v)) == 0) -#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0) - -#define atomic_inc(v) atomic_add(1, (v)) -#define atomic_dec(v) atomic_sub(1, (v)) - -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -#define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v) - -#endif - -#include <asm-generic/atomic64.h> - -#endif /* __ASM_METAG_ATOMIC_H */ diff --git a/arch/metag/include/asm/atomic_lnkget.h b/arch/metag/include/asm/atomic_lnkget.h deleted file mode 100644 index 17e8c61c946d..000000000000 --- a/arch/metag/include/asm/atomic_lnkget.h +++ /dev/null @@ -1,204 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_ATOMIC_LNKGET_H -#define __ASM_METAG_ATOMIC_LNKGET_H - -#define ATOMIC_INIT(i) { (i) } - -#define atomic_set(v, i) WRITE_ONCE((v)->counter, (i)) - -#include <linux/compiler.h> - -#include <asm/barrier.h> - -/* - * None of these asm statements clobber memory as LNKSET writes around - * the cache so the memory it modifies cannot safely be read by any means - * other than these accessors. - */ - -static inline int atomic_read(const atomic_t *v) -{ - int temp; - - asm volatile ( - "LNKGETD %0, [%1]\n" - : "=da" (temp) - : "da" (&v->counter)); - - return temp; -} - -#define ATOMIC_OP(op) \ -static inline void atomic_##op(int i, atomic_t *v) \ -{ \ - int temp; \ - \ - asm volatile ( \ - "1: LNKGETD %0, [%1]\n" \ - " " #op " %0, %0, %2\n" \ - " LNKSETD [%1], %0\n" \ - " DEFR %0, TXSTAT\n" \ - " ANDT %0, %0, #HI(0x3f000000)\n" \ - " CMPT %0, #HI(0x02000000)\n" \ - " BNZ 1b\n" \ - : "=&d" (temp) \ - : "da" (&v->counter), "bd" (i) \ - : "cc"); \ -} \ - -#define ATOMIC_OP_RETURN(op) \ -static inline int atomic_##op##_return(int i, atomic_t *v) \ -{ \ - int result, temp; \ - \ - smp_mb(); \ - \ - asm volatile ( \ - "1: LNKGETD %1, [%2]\n" \ - " " #op " %1, %1, %3\n" \ - " LNKSETD [%2], %1\n" \ - " DEFR %0, TXSTAT\n" \ - " ANDT %0, %0, #HI(0x3f000000)\n" \ - " CMPT %0, #HI(0x02000000)\n" \ - " BNZ 1b\n" \ - : "=&d" (temp), "=&da" (result) \ - : "da" (&v->counter), "br" (i) \ - : "cc"); \ - \ - smp_mb(); \ - \ - return result; \ -} - -#define ATOMIC_FETCH_OP(op) \ -static inline int atomic_fetch_##op(int i, atomic_t *v) \ -{ \ - int result, temp; \ - \ - smp_mb(); \ - \ - asm volatile ( \ - "1: LNKGETD %1, [%2]\n" \ - " " #op " %0, %1, %3\n" \ - " LNKSETD [%2], %0\n" \ - " DEFR %0, TXSTAT\n" \ - " ANDT %0, %0, #HI(0x3f000000)\n" \ - " CMPT %0, #HI(0x02000000)\n" \ - " BNZ 1b\n" \ - : "=&d" (temp), "=&d" (result) \ - : "da" (&v->counter), "bd" (i) \ - : "cc"); \ - \ - smp_mb(); \ - \ - return result; \ -} - -#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op) - -ATOMIC_OPS(add) -ATOMIC_OPS(sub) - -#undef ATOMIC_OPS -#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op) - -ATOMIC_OPS(and) -ATOMIC_OPS(or) -ATOMIC_OPS(xor) - -#undef ATOMIC_OPS -#undef ATOMIC_FETCH_OP -#undef ATOMIC_OP_RETURN -#undef ATOMIC_OP - -static inline int atomic_cmpxchg(atomic_t *v, int old, int new) -{ - int result, temp; - - smp_mb(); - - asm volatile ( - "1: LNKGETD %1, [%2]\n" - " CMP %1, %3\n" - " LNKSETDEQ [%2], %4\n" - " BNE 2f\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" - "2:\n" - : "=&d" (temp), "=&d" (result) - : "da" (&v->counter), "bd" (old), "da" (new) - : "cc"); - - smp_mb(); - - return result; -} - -static inline int atomic_xchg(atomic_t *v, int new) -{ - int temp, old; - - asm volatile ( - "1: LNKGETD %1, [%2]\n" - " LNKSETD [%2], %3\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" - : "=&d" (temp), "=&d" (old) - : "da" (&v->counter), "da" (new) - : "cc"); - - return old; -} - -static inline int __atomic_add_unless(atomic_t *v, int a, int u) -{ - int result, temp; - - smp_mb(); - - asm volatile ( - "1: LNKGETD %1, [%2]\n" - " CMP %1, %3\n" - " ADD %0, %1, %4\n" - " LNKSETDNE [%2], %0\n" - " BEQ 2f\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" - "2:\n" - : "=&d" (temp), "=&d" (result) - : "da" (&v->counter), "bd" (u), "bd" (a) - : "cc"); - - smp_mb(); - - return result; -} - -static inline int atomic_sub_if_positive(int i, atomic_t *v) -{ - int result, temp; - - asm volatile ( - "1: LNKGETD %1, [%2]\n" - " SUBS %1, %1, %3\n" - " LNKSETDGE [%2], %1\n" - " BLT 2f\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" - "2:\n" - : "=&d" (temp), "=&da" (result) - : "da" (&v->counter), "bd" (i) - : "cc"); - - return result; -} - -#endif /* __ASM_METAG_ATOMIC_LNKGET_H */ diff --git a/arch/metag/include/asm/atomic_lock1.h b/arch/metag/include/asm/atomic_lock1.h deleted file mode 100644 index 2ce8fa3a79c2..000000000000 --- a/arch/metag/include/asm/atomic_lock1.h +++ /dev/null @@ -1,157 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_ATOMIC_LOCK1_H -#define __ASM_METAG_ATOMIC_LOCK1_H - -#define ATOMIC_INIT(i) { (i) } - -#include <linux/compiler.h> - -#include <asm/barrier.h> -#include <asm/global_lock.h> - -static inline int atomic_read(const atomic_t *v) -{ - return READ_ONCE((v)->counter); -} - -/* - * atomic_set needs to be take the lock to protect atomic_add_unless from a - * possible race, as it reads the counter twice: - * - * CPU0 CPU1 - * atomic_add_unless(1, 0) - * ret = v->counter (non-zero) - * if (ret != u) v->counter = 0 - * v->counter += 1 (counter set to 1) - * - * Making atomic_set take the lock ensures that ordering and logical - * consistency is preserved. - */ -static inline int atomic_set(atomic_t *v, int i) -{ - unsigned long flags; - - __global_lock1(flags); - fence(); - v->counter = i; - __global_unlock1(flags); - return i; -} - -#define atomic_set_release(v, i) atomic_set((v), (i)) - -#define ATOMIC_OP(op, c_op) \ -static inline void atomic_##op(int i, atomic_t *v) \ -{ \ - unsigned long flags; \ - \ - __global_lock1(flags); \ - fence(); \ - v->counter c_op i; \ - __global_unlock1(flags); \ -} \ - -#define ATOMIC_OP_RETURN(op, c_op) \ -static inline int atomic_##op##_return(int i, atomic_t *v) \ -{ \ - unsigned long result; \ - unsigned long flags; \ - \ - __global_lock1(flags); \ - result = v->counter; \ - result c_op i; \ - fence(); \ - v->counter = result; \ - __global_unlock1(flags); \ - \ - return result; \ -} - -#define ATOMIC_FETCH_OP(op, c_op) \ -static inline int atomic_fetch_##op(int i, atomic_t *v) \ -{ \ - unsigned long result; \ - unsigned long flags; \ - \ - __global_lock1(flags); \ - result = v->counter; \ - fence(); \ - v->counter c_op i; \ - __global_unlock1(flags); \ - \ - return result; \ -} - -#define ATOMIC_OPS(op, c_op) \ - ATOMIC_OP(op, c_op) \ - ATOMIC_OP_RETURN(op, c_op) \ - ATOMIC_FETCH_OP(op, c_op) - -ATOMIC_OPS(add, +=) -ATOMIC_OPS(sub, -=) - -#undef ATOMIC_OPS -#define ATOMIC_OPS(op, c_op) \ - ATOMIC_OP(op, c_op) \ - ATOMIC_FETCH_OP(op, c_op) - -ATOMIC_OPS(and, &=) -ATOMIC_OPS(or, |=) -ATOMIC_OPS(xor, ^=) - -#undef ATOMIC_OPS -#undef ATOMIC_FETCH_OP -#undef ATOMIC_OP_RETURN -#undef ATOMIC_OP - -static inline int atomic_cmpxchg(atomic_t *v, int old, int new) -{ - int ret; - unsigned long flags; - - __global_lock1(flags); - ret = v->counter; - if (ret == old) { - fence(); - v->counter = new; - } - __global_unlock1(flags); - - return ret; -} - -#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) - -static inline int __atomic_add_unless(atomic_t *v, int a, int u) -{ - int ret; - unsigned long flags; - - __global_lock1(flags); - ret = v->counter; - if (ret != u) { - fence(); - v->counter += a; - } - __global_unlock1(flags); - - return ret; -} - -static inline int atomic_sub_if_positive(int i, atomic_t *v) -{ - int ret; - unsigned long flags; - - __global_lock1(flags); - ret = v->counter - 1; - if (ret >= 0) { - fence(); - v->counter = ret; - } - __global_unlock1(flags); - - return ret; -} - -#endif /* __ASM_METAG_ATOMIC_LOCK1_H */ diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h deleted file mode 100644 index 2661fec5696a..000000000000 --- a/arch/metag/include/asm/barrier.h +++ /dev/null @@ -1,85 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_BARRIER_H -#define _ASM_METAG_BARRIER_H - -#include <asm/metag_mem.h> - -#define nop() asm volatile ("NOP") - -#ifdef CONFIG_METAG_META21 - -/* HTP and above have a system event to fence writes */ -static inline void wr_fence(void) -{ - volatile int *flushptr = (volatile int *) LINSYSEVENT_WR_FENCE; - barrier(); - *flushptr = 0; - barrier(); -} - -#else /* CONFIG_METAG_META21 */ - -/* - * ATP doesn't have system event to fence writes, so it is necessary to flush - * the processor write queues as well as possibly the write combiner (depending - * on the page being written). - * To ensure the write queues are flushed we do 4 writes to a system event - * register (in this case write combiner flush) which will also flush the write - * combiner. - */ -static inline void wr_fence(void) -{ - volatile int *flushptr = (volatile int *) LINSYSEVENT_WR_COMBINE_FLUSH; - barrier(); - *flushptr = 0; - *flushptr = 0; - *flushptr = 0; - *flushptr = 0; - barrier(); -} - -#endif /* !CONFIG_METAG_META21 */ - -/* flush writes through the write combiner */ -#define mb() wr_fence() -#define rmb() barrier() -#define wmb() mb() - -#ifdef CONFIG_METAG_SMP_WRITE_REORDERING -/* - * Write to the atomic memory unlock system event register (command 0). This is - * needed before a write to shared memory in a critical section, to prevent - * external reordering of writes before the fence on other threads with writes - * after the fence on this thread (and to prevent the ensuing cache-memory - * incoherence). It is therefore ineffective if used after and on the same - * thread as a write. - */ -static inline void metag_fence(void) -{ - volatile int *flushptr = (volatile int *) LINSYSEVENT_WR_ATOMIC_UNLOCK; - barrier(); - *flushptr = 0; - barrier(); -} -#define __smp_mb() metag_fence() -#define __smp_rmb() metag_fence() -#define __smp_wmb() barrier() -#else -#define metag_fence() do { } while (0) -#define __smp_mb() barrier() -#define __smp_rmb() barrier() -#define __smp_wmb() barrier() -#endif - -#ifdef CONFIG_SMP -#define fence() metag_fence() -#else -#define fence() do { } while (0) -#endif - -#define __smp_mb__before_atomic() barrier() -#define __smp_mb__after_atomic() barrier() - -#include <asm-generic/barrier.h> - -#endif /* _ASM_METAG_BARRIER_H */ diff --git a/arch/metag/include/asm/bitops.h b/arch/metag/include/asm/bitops.h deleted file mode 100644 index 766ad43010ad..000000000000 --- a/arch/metag/include/asm/bitops.h +++ /dev/null @@ -1,127 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_BITOPS_H -#define __ASM_METAG_BITOPS_H - -#include <linux/compiler.h> -#include <asm/barrier.h> -#include <asm/global_lock.h> - -#ifdef CONFIG_SMP -/* - * These functions are the basis of our bit ops. - */ -static inline void set_bit(unsigned int bit, volatile unsigned long *p) -{ - unsigned long flags; - unsigned long mask = 1UL << (bit & 31); - - p += bit >> 5; - - __global_lock1(flags); - fence(); - *p |= mask; - __global_unlock1(flags); -} - -static inline void clear_bit(unsigned int bit, volatile unsigned long *p) -{ - unsigned long flags; - unsigned long mask = 1UL << (bit & 31); - - p += bit >> 5; - - __global_lock1(flags); - fence(); - *p &= ~mask; - __global_unlock1(flags); -} - -static inline void change_bit(unsigned int bit, volatile unsigned long *p) -{ - unsigned long flags; - unsigned long mask = 1UL << (bit & 31); - - p += bit >> 5; - - __global_lock1(flags); - fence(); - *p ^= mask; - __global_unlock1(flags); -} - -static inline int test_and_set_bit(unsigned int bit, volatile unsigned long *p) -{ - unsigned long flags; - unsigned long old; - unsigned long mask = 1UL << (bit & 31); - - p += bit >> 5; - - __global_lock1(flags); - old = *p; - if (!(old & mask)) { - fence(); - *p = old | mask; - } - __global_unlock1(flags); - - return (old & mask) != 0; -} - -static inline int test_and_clear_bit(unsigned int bit, - volatile unsigned long *p) -{ - unsigned long flags; - unsigned long old; - unsigned long mask = 1UL << (bit & 31); - - p += bit >> 5; - - __global_lock1(flags); - old = *p; - if (old & mask) { - fence(); - *p = old & ~mask; - } - __global_unlock1(flags); - - return (old & mask) != 0; -} - -static inline int test_and_change_bit(unsigned int bit, - volatile unsigned long *p) -{ - unsigned long flags; - unsigned long old; - unsigned long mask = 1UL << (bit & 31); - - p += bit >> 5; - - __global_lock1(flags); - fence(); - old = *p; - *p = old ^ mask; - __global_unlock1(flags); - - return (old & mask) != 0; -} - -#else -#include <asm-generic/bitops/atomic.h> -#endif /* CONFIG_SMP */ - -#include <asm-generic/bitops/non-atomic.h> -#include <asm-generic/bitops/find.h> -#include <asm-generic/bitops/ffs.h> -#include <asm-generic/bitops/__ffs.h> -#include <asm-generic/bitops/ffz.h> -#include <asm-generic/bitops/fls.h> -#include <asm-generic/bitops/__fls.h> -#include <asm-generic/bitops/fls64.h> -#include <asm-generic/bitops/hweight.h> -#include <asm-generic/bitops/lock.h> -#include <asm-generic/bitops/sched.h> -#include <asm-generic/bitops/le.h> -#include <asm-generic/bitops/ext2-atomic.h> - -#endif /* __ASM_METAG_BITOPS_H */ diff --git a/arch/metag/include/asm/bug.h b/arch/metag/include/asm/bug.h deleted file mode 100644 index ee07a943f931..000000000000 --- a/arch/metag/include/asm/bug.h +++ /dev/null @@ -1,13 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_BUG_H -#define _ASM_METAG_BUG_H - -#include <asm-generic/bug.h> - -struct pt_regs; - -extern const char *trap_name(int trapno); -extern void __noreturn die(const char *str, struct pt_regs *regs, long err, - unsigned long addr); - -#endif diff --git a/arch/metag/include/asm/cache.h b/arch/metag/include/asm/cache.h deleted file mode 100644 index b5df02239c8d..000000000000 --- a/arch/metag/include/asm/cache.h +++ /dev/null @@ -1,24 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_CACHE_H -#define __ASM_METAG_CACHE_H - -/* L1 cache line size (64 bytes) */ -#define L1_CACHE_SHIFT 6 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) - -/* Meta requires large data items to be 8 byte aligned. */ -#define ARCH_SLAB_MINALIGN 8 - -/* - * With an L2 cache, we may invalidate dirty lines, so we need to ensure DMA - * buffers have cache line alignment. - */ -#ifdef CONFIG_METAG_L2C -#define ARCH_DMA_MINALIGN L1_CACHE_BYTES -#else -#define ARCH_DMA_MINALIGN 8 -#endif - -#define __read_mostly __attribute__((__section__(".data..read_mostly"))) - -#endif diff --git a/arch/metag/include/asm/cacheflush.h b/arch/metag/include/asm/cacheflush.h deleted file mode 100644 index 2584a51eca1a..000000000000 --- a/arch/metag/include/asm/cacheflush.h +++ /dev/null @@ -1,251 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _METAG_CACHEFLUSH_H -#define _METAG_CACHEFLUSH_H - -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/io.h> - -#include <asm/l2cache.h> -#include <asm/metag_isa.h> -#include <asm/metag_mem.h> - -void metag_cache_probe(void); - -void metag_data_cache_flush_all(const void *start); -void metag_code_cache_flush_all(const void *start); - -/* - * Routines to flush physical cache lines that may be used to cache data or code - * normally accessed via the linear address range supplied. The region flushed - * must either lie in local or global address space determined by the top bit of - * the pStart address. If Bytes is >= 4K then the whole of the related cache - * state will be flushed rather than a limited range. - */ -void metag_data_cache_flush(const void *start, int bytes); -void metag_code_cache_flush(const void *start, int bytes); - -#ifdef CONFIG_METAG_META12 - -/* Write through, virtually tagged, split I/D cache. */ - -static inline void __flush_cache_all(void) -{ - metag_code_cache_flush_all((void *) PAGE_OFFSET); - metag_data_cache_flush_all((void *) PAGE_OFFSET); -} - -#define flush_cache_all() __flush_cache_all() - -/* flush the entire user address space referenced in this mm structure */ -static inline void flush_cache_mm(struct mm_struct *mm) -{ - if (mm == current->mm) - __flush_cache_all(); -} - -#define flush_cache_dup_mm(mm) flush_cache_mm(mm) - -/* flush a range of addresses from this mm */ -static inline void flush_cache_range(struct vm_area_struct *vma, - unsigned long start, unsigned long end) -{ - flush_cache_mm(vma->vm_mm); -} - -static inline void flush_cache_page(struct vm_area_struct *vma, - unsigned long vmaddr, unsigned long pfn) -{ - flush_cache_mm(vma->vm_mm); -} - -#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 -static inline void flush_dcache_page(struct page *page) -{ - metag_data_cache_flush_all((void *) PAGE_OFFSET); -} - -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) - -static inline void flush_icache_page(struct vm_area_struct *vma, - struct page *page) -{ - metag_code_cache_flush(page_to_virt(page), PAGE_SIZE); -} - -static inline void flush_cache_vmap(unsigned long start, unsigned long end) -{ - metag_data_cache_flush_all((void *) PAGE_OFFSET); -} - -static inline void flush_cache_vunmap(unsigned long start, unsigned long end) -{ - metag_data_cache_flush_all((void *) PAGE_OFFSET); -} - -#else - -/* Write through, physically tagged, split I/D cache. */ - -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_dup_mm(mm) do { } while (0) -#define flush_cache_range(vma, start, end) do { } while (0) -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) -#define flush_icache_page(vma, pg) do { } while (0) -#define flush_cache_vmap(start, end) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - -#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 -static inline void flush_dcache_page(struct page *page) -{ - /* FIXME: We can do better than this. All we are trying to do is - * make the i-cache coherent, we should use the PG_arch_1 bit like - * e.g. powerpc. - */ -#ifdef CONFIG_SMP - metag_out32(1, SYSC_ICACHE_FLUSH); -#else - metag_code_cache_flush_all((void *) PAGE_OFFSET); -#endif -} - -#endif - -/* Push n pages at kernel virtual address and clear the icache */ -static inline void flush_icache_range(unsigned long address, - unsigned long endaddr) -{ -#ifdef CONFIG_SMP - metag_out32(1, SYSC_ICACHE_FLUSH); -#else - metag_code_cache_flush((void *) address, endaddr - address); -#endif -} - -static inline void flush_cache_sigtramp(unsigned long addr, int size) -{ - /* - * Flush the icache in case there was previously some code - * fetched from this address, perhaps a previous sigtramp. - * - * We don't need to flush the dcache, it's write through and - * we just wrote the sigtramp code through it. - */ -#ifdef CONFIG_SMP - metag_out32(1, SYSC_ICACHE_FLUSH); -#else - metag_code_cache_flush((void *) addr, size); -#endif -} - -#ifdef CONFIG_METAG_L2C - -/* - * Perform a single specific CACHEWD operation on an address, masking lower bits - * of address first. - */ -static inline void cachewd_line(void *addr, unsigned int data) -{ - unsigned long masked = (unsigned long)addr & -0x40; - __builtin_meta2_cachewd((void *)masked, data); -} - -/* Perform a certain CACHEW op on each cache line in a range */ -static inline void cachew_region_op(void *start, unsigned long size, - unsigned int op) -{ - unsigned long offset = (unsigned long)start & 0x3f; - int i; - if (offset) { - size += offset; - start -= offset; - } - i = (size - 1) >> 6; - do { - __builtin_meta2_cachewd(start, op); - start += 0x40; - } while (i--); -} - -/* prevent write fence and flushbacks being reordered in L2 */ -static inline void l2c_fence_flush(void *addr) -{ - /* - * Synchronise by reading back and re-flushing. - * It is assumed this access will miss, as the caller should have just - * flushed the cache line. - */ - (void)(volatile u8 *)addr; - cachewd_line(addr, CACHEW_FLUSH_L1D_L2); -} - -/* prevent write fence and writebacks being reordered in L2 */ -static inline void l2c_fence(void *addr) -{ - /* - * A write back has occurred, but not necessarily an invalidate, so the - * readback in l2c_fence_flush() would hit in the cache and have no - * effect. Therefore fully flush the line first. - */ - cachewd_line(addr, CACHEW_FLUSH_L1D_L2); - l2c_fence_flush(addr); -} - -/* Used to keep memory consistent when doing DMA. */ -static inline void flush_dcache_region(void *start, unsigned long size) -{ - /* metag_data_cache_flush won't flush L2 cache lines if size >= 4096 */ - if (meta_l2c_is_enabled()) { - cachew_region_op(start, size, CACHEW_FLUSH_L1D_L2); - if (meta_l2c_is_writeback()) - l2c_fence_flush(start + size - 1); - } else { - metag_data_cache_flush(start, size); - } -} - -/* Write back dirty lines to memory (or do nothing if no writeback caches) */ -static inline void writeback_dcache_region(void *start, unsigned long size) -{ - if (meta_l2c_is_enabled() && meta_l2c_is_writeback()) { - cachew_region_op(start, size, CACHEW_WRITEBACK_L1D_L2); - l2c_fence(start + size - 1); - } -} - -/* Invalidate (may also write back if necessary) */ -static inline void invalidate_dcache_region(void *start, unsigned long size) -{ - if (meta_l2c_is_enabled()) - cachew_region_op(start, size, CACHEW_INVALIDATE_L1D_L2); - else - metag_data_cache_flush(start, size); -} -#else -#define flush_dcache_region(s, l) metag_data_cache_flush((s), (l)) -#define writeback_dcache_region(s, l) do {} while (0) -#define invalidate_dcache_region(s, l) flush_dcache_region((s), (l)) -#endif - -static inline void copy_to_user_page(struct vm_area_struct *vma, - struct page *page, unsigned long vaddr, - void *dst, const void *src, - unsigned long len) -{ - memcpy(dst, src, len); - flush_icache_range((unsigned long)dst, (unsigned long)dst + len); -} - -static inline void copy_from_user_page(struct vm_area_struct *vma, - struct page *page, unsigned long vaddr, - void *dst, const void *src, - unsigned long len) -{ - memcpy(dst, src, len); -} - -#endif /* _METAG_CACHEFLUSH_H */ diff --git a/arch/metag/include/asm/cachepart.h b/arch/metag/include/asm/cachepart.h deleted file mode 100644 index 79411e977586..000000000000 --- a/arch/metag/include/asm/cachepart.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Meta cache partition manipulation. - * - * Copyright 2010 Imagination Technologies Ltd. - */ - -#ifndef _METAG_CACHEPART_H_ -#define _METAG_CACHEPART_H_ - -/** - * get_dcache_size() - Get size of data cache. - */ -unsigned int get_dcache_size(void); - -/** - * get_icache_size() - Get size of code cache. - */ -unsigned int get_icache_size(void); - -/** - * get_global_dcache_size() - Get the thread's global dcache. - * - * Returns the size of the current thread's global dcache partition. - */ -unsigned int get_global_dcache_size(void); - -/** - * get_global_icache_size() - Get the thread's global icache. - * - * Returns the size of the current thread's global icache partition. - */ -unsigned int get_global_icache_size(void); - -/** - * check_for_dache_aliasing() - Ensure that the bootloader has configured the - * dache and icache properly to avoid aliasing - * @thread_id: Hardware thread ID - * - */ -void check_for_cache_aliasing(int thread_id); - -#endif diff --git a/arch/metag/include/asm/checksum.h b/arch/metag/include/asm/checksum.h deleted file mode 100644 index 6533d14e9789..000000000000 --- a/arch/metag/include/asm/checksum.h +++ /dev/null @@ -1,93 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _METAG_CHECKSUM_H -#define _METAG_CHECKSUM_H - -/* - * computes the checksum of a memory block at buff, length len, - * and adds in "sum" (32-bit) - * - * returns a 32-bit number suitable for feeding into itself - * or csum_tcpudp_magic - * - * this function must be called with even lengths, except - * for the last fragment, which may be odd - * - * it's best to have buff aligned on a 32-bit boundary - */ -extern __wsum csum_partial(const void *buff, int len, __wsum sum); - -/* - * the same as csum_partial, but copies from src while it - * checksums - * - * here even more important to align src and dst on a 32-bit (or even - * better 64-bit) boundary - */ -extern __wsum csum_partial_copy(const void *src, void *dst, int len, - __wsum sum); - -/* - * the same as csum_partial_copy, but copies from user space. - * - * here even more important to align src and dst on a 32-bit (or even - * better 64-bit) boundary - */ -extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst, - int len, __wsum sum, int *csum_err); - -#define csum_partial_copy_nocheck(src, dst, len, sum) \ - csum_partial_copy((src), (dst), (len), (sum)) - -/* - * Fold a partial checksum - */ -static inline __sum16 csum_fold(__wsum csum) -{ - u32 sum = (__force u32)csum; - sum = (sum & 0xffff) + (sum >> 16); - sum = (sum & 0xffff) + (sum >> 16); - return (__force __sum16)~sum; -} - -/* - * This is a version of ip_compute_csum() optimized for IP headers, - * which always checksum on 4 octet boundaries. - */ -extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl); - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - __u32 len, __u8 proto, - __wsum sum) -{ - unsigned long len_proto = (proto + len) << 8; - asm ("ADDS %0, %0, %1\n" - "ADDCS %0, %0, #1\n" - "ADDS %0, %0, %2\n" - "ADDCS %0, %0, #1\n" - "ADDS %0, %0, %3\n" - "ADDCS %0, %0, #1\n" - : "=d" (sum) - : "d" (daddr), "d" (saddr), "d" (len_proto), - "0" (sum) - : "cc"); - return sum; -} - -static inline __sum16 -csum_tcpudp_magic(__be32 saddr, __be32 daddr, __u32 len, - __u8 proto, __wsum sum) -{ - return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum)); -} - -/* - * this routine is used for miscellaneous IP-like checksums, mainly - * in icmp.c - */ -extern __sum16 ip_compute_csum(const void *buff, int len); - -#endif /* _METAG_CHECKSUM_H */ diff --git a/arch/metag/include/asm/clock.h b/arch/metag/include/asm/clock.h deleted file mode 100644 index ded4ab2e1fd0..000000000000 --- a/arch/metag/include/asm/clock.h +++ /dev/null @@ -1,59 +0,0 @@ -/* - * arch/metag/include/asm/clock.h - * - * Copyright (C) 2012 Imagination Technologies Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef _METAG_CLOCK_H_ -#define _METAG_CLOCK_H_ - -#include <asm/mach/arch.h> - -/** - * struct meta_clock_desc - Meta Core clock callbacks. - * @get_core_freq: Get the frequency of the Meta core. If this is NULL, the - * core frequency will be determined like this: - * Meta 1: based on loops_per_jiffy. - * Meta 2: (EXPAND_TIMER_DIV + 1) MHz. - * If a "core" clock is provided by the device tree, it - * will override this function. - */ -struct meta_clock_desc { - unsigned long (*get_core_freq)(void); -}; - -extern struct meta_clock_desc _meta_clock; - -/* - * Perform platform clock initialisation, reading clocks from device tree etc. - * Only accessible during boot. - */ -void init_metag_clocks(void); - -/* - * Set up the default clock, ensuring all callbacks are valid - only accessible - * during boot. - */ -void setup_meta_clocks(struct meta_clock_desc *desc); - -/** - * get_coreclock() - Get the frequency of the Meta core clock. - * - * Returns: The Meta core clock frequency in Hz. - */ -static inline unsigned long get_coreclock(void) -{ - /* - * Use the current clock callback. If set correctly this will provide - * the most accurate frequency as it can be calculated directly from the - * PLL configuration. otherwise a default callback will have been set - * instead. - */ - return _meta_clock.get_core_freq(); -} - -#endif /* _METAG_CLOCK_H_ */ diff --git a/arch/metag/include/asm/cmpxchg.h b/arch/metag/include/asm/cmpxchg.h deleted file mode 100644 index 68c4ab1466fd..000000000000 --- a/arch/metag/include/asm/cmpxchg.h +++ /dev/null @@ -1,64 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_CMPXCHG_H -#define __ASM_METAG_CMPXCHG_H - -#include <asm/barrier.h> - -#if defined(CONFIG_METAG_ATOMICITY_IRQSOFF) -#include <asm/cmpxchg_irq.h> -#elif defined(CONFIG_METAG_ATOMICITY_LOCK1) -#include <asm/cmpxchg_lock1.h> -#elif defined(CONFIG_METAG_ATOMICITY_LNKGET) -#include <asm/cmpxchg_lnkget.h> -#endif - -extern void __xchg_called_with_bad_pointer(void); - -#define __xchg(ptr, x, size) \ -({ \ - unsigned long __xchg__res; \ - volatile void *__xchg_ptr = (ptr); \ - switch (size) { \ - case 4: \ - __xchg__res = xchg_u32(__xchg_ptr, x); \ - break; \ - case 1: \ - __xchg__res = xchg_u8(__xchg_ptr, x); \ - break; \ - default: \ - __xchg_called_with_bad_pointer(); \ - __xchg__res = x; \ - break; \ - } \ - \ - __xchg__res; \ -}) - -#define xchg(ptr, x) \ - ((__typeof__(*(ptr)))__xchg((ptr), (unsigned long)(x), sizeof(*(ptr)))) - -/* This function doesn't exist, so you'll get a linker error - * if something tries to do an invalid cmpxchg(). */ -extern void __cmpxchg_called_with_bad_pointer(void); - -static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, - unsigned long new, int size) -{ - switch (size) { - case 4: - return __cmpxchg_u32(ptr, old, new); - } - __cmpxchg_called_with_bad_pointer(); - return old; -} - -#define cmpxchg(ptr, o, n) \ - ({ \ - __typeof__(*(ptr)) _o_ = (o); \ - __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ - (unsigned long)_n_, \ - sizeof(*(ptr))); \ - }) - -#endif /* __ASM_METAG_CMPXCHG_H */ diff --git a/arch/metag/include/asm/cmpxchg_irq.h b/arch/metag/include/asm/cmpxchg_irq.h deleted file mode 100644 index 5255e37f8496..000000000000 --- a/arch/metag/include/asm/cmpxchg_irq.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_CMPXCHG_IRQ_H -#define __ASM_METAG_CMPXCHG_IRQ_H - -#include <linux/irqflags.h> - -static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val) -{ - unsigned long flags, retval; - - local_irq_save(flags); - retval = *m; - *m = val; - local_irq_restore(flags); - return retval; -} - -static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val) -{ - unsigned long flags, retval; - - local_irq_save(flags); - retval = *m; - *m = val & 0xff; - local_irq_restore(flags); - return retval; -} - -static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old, - unsigned long new) -{ - __u32 retval; - unsigned long flags; - - local_irq_save(flags); - retval = *m; - if (retval == old) - *m = new; - local_irq_restore(flags); /* implies memory barrier */ - return retval; -} - -#endif /* __ASM_METAG_CMPXCHG_IRQ_H */ diff --git a/arch/metag/include/asm/cmpxchg_lnkget.h b/arch/metag/include/asm/cmpxchg_lnkget.h deleted file mode 100644 index c69be00a4739..000000000000 --- a/arch/metag/include/asm/cmpxchg_lnkget.h +++ /dev/null @@ -1,87 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_CMPXCHG_LNKGET_H -#define __ASM_METAG_CMPXCHG_LNKGET_H - -static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val) -{ - int temp, old; - - smp_mb(); - - asm volatile ( - "1: LNKGETD %1, [%2]\n" - " LNKSETD [%2], %3\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" -#ifdef CONFIG_METAG_LNKGET_AROUND_CACHE - " DCACHE [%2], %0\n" -#endif - : "=&d" (temp), "=&d" (old) - : "da" (m), "da" (val) - : "cc" - ); - - smp_mb(); - - return old; -} - -static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val) -{ - int temp, old; - - smp_mb(); - - asm volatile ( - "1: LNKGETD %1, [%2]\n" - " LNKSETD [%2], %3\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" -#ifdef CONFIG_METAG_LNKGET_AROUND_CACHE - " DCACHE [%2], %0\n" -#endif - : "=&d" (temp), "=&d" (old) - : "da" (m), "da" (val & 0xff) - : "cc" - ); - - smp_mb(); - - return old; -} - -static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old, - unsigned long new) -{ - __u32 retval, temp; - - smp_mb(); - - asm volatile ( - "1: LNKGETD %1, [%2]\n" - " CMP %1, %3\n" - " LNKSETDEQ [%2], %4\n" - " BNE 2f\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" -#ifdef CONFIG_METAG_LNKGET_AROUND_CACHE - " DCACHE [%2], %0\n" -#endif - "2:\n" - : "=&d" (temp), "=&d" (retval) - : "da" (m), "bd" (old), "da" (new) - : "cc" - ); - - smp_mb(); - - return retval; -} - -#endif /* __ASM_METAG_CMPXCHG_LNKGET_H */ diff --git a/arch/metag/include/asm/cmpxchg_lock1.h b/arch/metag/include/asm/cmpxchg_lock1.h deleted file mode 100644 index 5976e39db2b4..000000000000 --- a/arch/metag/include/asm/cmpxchg_lock1.h +++ /dev/null @@ -1,49 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_CMPXCHG_LOCK1_H -#define __ASM_METAG_CMPXCHG_LOCK1_H - -#include <asm/global_lock.h> - -/* Use LOCK2 as these have to be atomic w.r.t. ordinary accesses. */ - -static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val) -{ - unsigned long flags, retval; - - __global_lock2(flags); - fence(); - retval = *m; - *m = val; - __global_unlock2(flags); - return retval; -} - -static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val) -{ - unsigned long flags, retval; - - __global_lock2(flags); - fence(); - retval = *m; - *m = val & 0xff; - __global_unlock2(flags); - return retval; -} - -static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old, - unsigned long new) -{ - __u32 retval; - unsigned long flags; - - __global_lock2(flags); - retval = *m; - if (retval == old) { - fence(); - *m = new; - } - __global_unlock2(flags); - return retval; -} - -#endif /* __ASM_METAG_CMPXCHG_LOCK1_H */ diff --git a/arch/metag/include/asm/core_reg.h b/arch/metag/include/asm/core_reg.h deleted file mode 100644 index ca70a0a29b61..000000000000 --- a/arch/metag/include/asm/core_reg.h +++ /dev/null @@ -1,36 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_CORE_REG_H_ -#define __ASM_METAG_CORE_REG_H_ - -#include <asm/metag_regs.h> - -extern void core_reg_write(int unit, int reg, int thread, unsigned int val); -extern unsigned int core_reg_read(int unit, int reg, int thread); - -/* - * These macros allow direct access from C to any register known to the - * assembler. Example candidates are TXTACTCYC, TXIDLECYC, and TXPRIVEXT. - */ - -#define __core_reg_get(reg) ({ \ - unsigned int __grvalue; \ - asm volatile("MOV %0," #reg \ - : "=r" (__grvalue)); \ - __grvalue; \ -}) - -#define __core_reg_set(reg, value) do { \ - unsigned int __srvalue = (value); \ - asm volatile("MOV " #reg ",%0" \ - : \ - : "r" (__srvalue)); \ -} while (0) - -#define __core_reg_swap(reg, value) do { \ - unsigned int __srvalue = (value); \ - asm volatile("SWAP " #reg ",%0" \ - : "+r" (__srvalue)); \ - (value) = __srvalue; \ -} while (0) - -#endif diff --git a/arch/metag/include/asm/cpu.h b/arch/metag/include/asm/cpu.h deleted file mode 100644 index 9dac67de4748..000000000000 --- a/arch/metag/include/asm/cpu.h +++ /dev/null @@ -1,15 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_CPU_H -#define _ASM_METAG_CPU_H - -#include <linux/percpu.h> - -struct cpuinfo_metag { - struct cpu cpu; -#ifdef CONFIG_SMP - unsigned long loops_per_jiffy; -#endif -}; - -DECLARE_PER_CPU(struct cpuinfo_metag, cpu_data); -#endif /* _ASM_METAG_CPU_H */ diff --git a/arch/metag/include/asm/da.h b/arch/metag/include/asm/da.h deleted file mode 100644 index 901daa540e6e..000000000000 --- a/arch/metag/include/asm/da.h +++ /dev/null @@ -1,44 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Meta DA JTAG debugger control. - * - * Copyright 2012 Imagination Technologies Ltd. - */ - -#ifndef _METAG_DA_H_ -#define _METAG_DA_H_ - -#ifdef CONFIG_METAG_DA - -#include <linux/init.h> -#include <linux/types.h> - -extern bool _metag_da_present; - -/** - * metag_da_enabled() - Find whether a DA is currently enabled. - * - * Returns: true if a DA was detected, false if not. - */ -static inline bool metag_da_enabled(void) -{ - return _metag_da_present; -} - -/** - * metag_da_probe() - Try and detect a connected DA. - * - * This is used at start up to detect whether a DA is active. - * - * Returns: 0 on detection, -err otherwise. - */ -int __init metag_da_probe(void); - -#else /* !CONFIG_METAG_DA */ - -#define metag_da_enabled() false -#define metag_da_probe() do {} while (0) - -#endif - -#endif /* _METAG_DA_H_ */ diff --git a/arch/metag/include/asm/delay.h b/arch/metag/include/asm/delay.h deleted file mode 100644 index fd73d3d5d294..000000000000 --- a/arch/metag/include/asm/delay.h +++ /dev/null @@ -1,30 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _METAG_DELAY_H -#define _METAG_DELAY_H - -/* - * Copyright (C) 1993 Linus Torvalds - * - * Delay routines calling functions in arch/metag/lib/delay.c - */ - -/* Undefined functions to get compile-time errors */ -extern void __bad_udelay(void); -extern void __bad_ndelay(void); - -extern void __udelay(unsigned long usecs); -extern void __ndelay(unsigned long nsecs); -extern void __const_udelay(unsigned long xloops); -extern void __delay(unsigned long loops); - -/* 0x10c7 is 2**32 / 1000000 (rounded up) */ -#define udelay(n) (__builtin_constant_p(n) ? \ - ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \ - __udelay(n)) - -/* 0x5 is 2**32 / 1000000000 (rounded up) */ -#define ndelay(n) (__builtin_constant_p(n) ? \ - ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ - __ndelay(n)) - -#endif /* _METAG_DELAY_H */ diff --git a/arch/metag/include/asm/div64.h b/arch/metag/include/asm/div64.h deleted file mode 100644 index e3686d2ae20e..000000000000 --- a/arch/metag/include/asm/div64.h +++ /dev/null @@ -1,13 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_DIV64_H__ -#define __ASM_DIV64_H__ - -#include <asm-generic/div64.h> - -extern u64 div_u64(u64 dividend, u64 divisor); -extern s64 div_s64(s64 dividend, s64 divisor); - -#define div_u64 div_u64 -#define div_s64 div_s64 - -#endif diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h deleted file mode 100644 index cfd6a0505b56..000000000000 --- a/arch/metag/include/asm/dma-mapping.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_DMA_MAPPING_H -#define _ASM_METAG_DMA_MAPPING_H - -extern const struct dma_map_ops metag_dma_ops; - -static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) -{ - return &metag_dma_ops; -} - -#endif diff --git a/arch/metag/include/asm/elf.h b/arch/metag/include/asm/elf.h deleted file mode 100644 index a6c33800ba66..000000000000 --- a/arch/metag/include/asm/elf.h +++ /dev/null @@ -1,126 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_ELF_H -#define __ASM_METAG_ELF_H - -#define EM_METAG 174 - -/* Meta relocations */ -#define R_METAG_HIADDR16 0 -#define R_METAG_LOADDR16 1 -#define R_METAG_ADDR32 2 -#define R_METAG_NONE 3 -#define R_METAG_RELBRANCH 4 -#define R_METAG_GETSETOFF 5 - -/* Backward compatibility */ -#define R_METAG_REG32OP1 6 -#define R_METAG_REG32OP2 7 -#define R_METAG_REG32OP3 8 -#define R_METAG_REG16OP1 9 -#define R_METAG_REG16OP2 10 -#define R_METAG_REG16OP3 11 -#define R_METAG_REG32OP4 12 - -#define R_METAG_HIOG 13 -#define R_METAG_LOOG 14 - -/* GNU */ -#define R_METAG_GNU_VTINHERIT 30 -#define R_METAG_GNU_VTENTRY 31 - -/* PIC relocations */ -#define R_METAG_HI16_GOTOFF 32 -#define R_METAG_LO16_GOTOFF 33 -#define R_METAG_GETSET_GOTOFF 34 -#define R_METAG_GETSET_GOT 35 -#define R_METAG_HI16_GOTPC 36 -#define R_METAG_LO16_GOTPC 37 -#define R_METAG_HI16_PLT 38 -#define R_METAG_LO16_PLT 39 -#define R_METAG_RELBRANCH_PLT 40 -#define R_METAG_GOTOFF 41 -#define R_METAG_PLT 42 -#define R_METAG_COPY 43 -#define R_METAG_JMP_SLOT 44 -#define R_METAG_RELATIVE 45 -#define R_METAG_GLOB_DAT 46 - -/* - * ELF register definitions. - */ - -#include <asm/page.h> -#include <asm/processor.h> -#include <asm/ptrace.h> -#include <asm/user.h> - -typedef unsigned long elf_greg_t; - -#define ELF_NGREG (sizeof(struct user_gp_regs) / sizeof(elf_greg_t)) -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -typedef unsigned long elf_fpregset_t; - -/* - * This is used to ensure we don't load something for the wrong architecture. - */ -#define elf_check_arch(x) ((x)->e_machine == EM_METAG) - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_METAG - -#define ELF_PLAT_INIT(_r, load_addr) \ - do { _r->ctx.AX[0].U0 = 0; } while (0) - -#define USE_ELF_CORE_DUMP -#define CORE_DUMP_USE_REGSET -#define ELF_EXEC_PAGESIZE PAGE_SIZE - -/* This is the location that an ET_DYN program is loaded if exec'ed. Typical - use of this is to invoke "./ld.so someprog" to test out a new version of - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - -#define ELF_ET_DYN_BASE 0x08000000UL - -#define ELF_CORE_COPY_REGS(_dest, _regs) \ - memcpy((char *)&_dest, (char *)_regs, sizeof(struct pt_regs)); - -/* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. */ - -#define ELF_HWCAP (0) - -/* This yields a string that ld.so will use to load implementation - specific libraries for optimization. This is more specific in - intent than poking at uname or /proc/cpuinfo. */ - -#define ELF_PLATFORM (NULL) - -#define STACK_RND_MASK (0) - -#ifdef CONFIG_METAG_USER_TCM - -struct elf32_phdr; -struct file; - -unsigned long __metag_elf_map(struct file *filep, unsigned long addr, - struct elf32_phdr *eppnt, int prot, int type, - unsigned long total_size); - -static inline unsigned long metag_elf_map(struct file *filep, - unsigned long addr, - struct elf32_phdr *eppnt, int prot, - int type, unsigned long total_size) -{ - return __metag_elf_map(filep, addr, eppnt, prot, type, total_size); -} -#define elf_map metag_elf_map - -#endif - -#endif diff --git a/arch/metag/include/asm/fixmap.h b/arch/metag/include/asm/fixmap.h deleted file mode 100644 index af621b041739..000000000000 --- a/arch/metag/include/asm/fixmap.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * fixmap.h: compile-time virtual memory allocation - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1998 Ingo Molnar - * - * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999 - */ - -#ifndef _ASM_FIXMAP_H -#define _ASM_FIXMAP_H - -#include <asm/pgtable.h> -#ifdef CONFIG_HIGHMEM -#include <linux/threads.h> -#include <asm/kmap_types.h> -#endif - -/* - * Here we define all the compile-time 'special' virtual - * addresses. The point is to have a constant address at - * compile time, but to set the physical address only - * in the boot process. We allocate these special addresses - * from the end of the consistent memory region backwards. - * Also this lets us do fail-safe vmalloc(), we - * can guarantee that these special addresses and - * vmalloc()-ed addresses never overlap. - * - * these 'compile-time allocated' memory buffers are - * fixed-size 4k pages. (or larger if used with an increment - * higher than 1) use fixmap_set(idx,phys) to associate - * physical memory with fixmap indices. - * - * TLB entries of such buffers will not be flushed across - * task switches. - */ -enum fixed_addresses { -#define FIX_N_COLOURS 8 -#ifdef CONFIG_HIGHMEM - /* reserved pte's for temporary kernel mappings */ - FIX_KMAP_BEGIN, - FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1, -#endif - __end_of_fixed_addresses -}; - -#define FIXADDR_TOP (CONSISTENT_START - PAGE_SIZE) -#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) -#define FIXADDR_START ((FIXADDR_TOP - FIXADDR_SIZE) & PMD_MASK) - -#include <asm-generic/fixmap.h> - -#define kmap_get_fixmap_pte(vaddr) \ - pte_offset_kernel( \ - pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), \ - (vaddr) \ - ) - -/* - * Called from pgtable_init() - */ -extern void fixrange_init(unsigned long start, unsigned long end, - pgd_t *pgd_base); - - -#endif diff --git a/arch/metag/include/asm/ftrace.h b/arch/metag/include/asm/ftrace.h deleted file mode 100644 index b1c8c76fb772..000000000000 --- a/arch/metag/include/asm/ftrace.h +++ /dev/null @@ -1,24 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_FTRACE -#define _ASM_METAG_FTRACE - -#ifdef CONFIG_FUNCTION_TRACER -#define MCOUNT_INSN_SIZE 8 /* sizeof mcount call */ - -#ifndef __ASSEMBLY__ -extern void mcount_wrapper(void); -#define MCOUNT_ADDR ((unsigned long)(mcount_wrapper)) - -static inline unsigned long ftrace_call_adjust(unsigned long addr) -{ - return addr; -} - -struct dyn_arch_ftrace { - /* No extra data needed on metag */ -}; -#endif /* __ASSEMBLY__ */ - -#endif /* CONFIG_FUNCTION_TRACER */ - -#endif /* _ASM_METAG_FTRACE */ diff --git a/arch/metag/include/asm/global_lock.h b/arch/metag/include/asm/global_lock.h deleted file mode 100644 index 4d3da9682233..000000000000 --- a/arch/metag/include/asm/global_lock.h +++ /dev/null @@ -1,101 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_GLOBAL_LOCK_H -#define __ASM_METAG_GLOBAL_LOCK_H - -#include <asm/metag_mem.h> - -/** - * __global_lock1() - Acquire global voluntary lock (LOCK1). - * @flags: Variable to store flags into. - * - * Acquires the Meta global voluntary lock (LOCK1), also taking care to disable - * all triggers so we cannot be interrupted, and to enforce a compiler barrier - * so that the compiler cannot reorder memory accesses across the lock. - * - * No other hardware thread will be able to acquire the voluntary or exclusive - * locks until the voluntary lock is released with @__global_unlock1, but they - * may continue to execute as long as they aren't trying to acquire either of - * the locks. - */ -#define __global_lock1(flags) do { \ - unsigned int __trval; \ - asm volatile("MOV %0,#0\n\t" \ - "SWAP %0,TXMASKI\n\t" \ - "LOCK1" \ - : "=r" (__trval) \ - : \ - : "memory"); \ - (flags) = __trval; \ -} while (0) - -/** - * __global_unlock1() - Release global voluntary lock (LOCK1). - * @flags: Variable to restore flags from. - * - * Releases the Meta global voluntary lock (LOCK1) acquired with - * @__global_lock1, also taking care to re-enable triggers, and to enforce a - * compiler barrier so that the compiler cannot reorder memory accesses across - * the unlock. - * - * This immediately allows another hardware thread to acquire the voluntary or - * exclusive locks. - */ -#define __global_unlock1(flags) do { \ - unsigned int __trval = (flags); \ - asm volatile("LOCK0\n\t" \ - "MOV TXMASKI,%0" \ - : \ - : "r" (__trval) \ - : "memory"); \ -} while (0) - -/** - * __global_lock2() - Acquire global exclusive lock (LOCK2). - * @flags: Variable to store flags into. - * - * Acquires the Meta global voluntary lock and global exclusive lock (LOCK2), - * also taking care to disable all triggers so we cannot be interrupted, to take - * the atomic lock (system event) and to enforce a compiler barrier so that the - * compiler cannot reorder memory accesses across the lock. - * - * No other hardware thread will be able to execute code until the locks are - * released with @__global_unlock2. - */ -#define __global_lock2(flags) do { \ - unsigned int __trval; \ - unsigned int __aloc_hi = LINSYSEVENT_WR_ATOMIC_LOCK & 0xFFFF0000; \ - asm volatile("MOV %0,#0\n\t" \ - "SWAP %0,TXMASKI\n\t" \ - "LOCK2\n\t" \ - "SETD [%1+#0x40],D1RtP" \ - : "=r&" (__trval) \ - : "u" (__aloc_hi) \ - : "memory"); \ - (flags) = __trval; \ -} while (0) - -/** - * __global_unlock2() - Release global exclusive lock (LOCK2). - * @flags: Variable to restore flags from. - * - * Releases the Meta global exclusive lock (LOCK2) and global voluntary lock - * acquired with @__global_lock2, also taking care to release the atomic lock - * (system event), re-enable triggers, and to enforce a compiler barrier so that - * the compiler cannot reorder memory accesses across the unlock. - * - * This immediately allows other hardware threads to continue executing and one - * of them to acquire locks. - */ -#define __global_unlock2(flags) do { \ - unsigned int __trval = (flags); \ - unsigned int __alock_hi = LINSYSEVENT_WR_ATOMIC_LOCK & 0xFFFF0000; \ - asm volatile("SETD [%1+#0x00],D1RtP\n\t" \ - "LOCK0\n\t" \ - "MOV TXMASKI,%0" \ - : \ - : "r" (__trval), \ - "u" (__alock_hi) \ - : "memory"); \ -} while (0) - -#endif /* __ASM_METAG_GLOBAL_LOCK_H */ diff --git a/arch/metag/include/asm/highmem.h b/arch/metag/include/asm/highmem.h deleted file mode 100644 index 8b0dfd684e15..000000000000 --- a/arch/metag/include/asm/highmem.h +++ /dev/null @@ -1,62 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_HIGHMEM_H -#define _ASM_HIGHMEM_H - -#include <asm/cacheflush.h> -#include <asm/kmap_types.h> -#include <asm/fixmap.h> - -/* - * Right now we initialize only a single pte table. It can be extended - * easily, subsequent pte tables have to be allocated in one physical - * chunk of RAM. - */ -/* - * Ordering is (from lower to higher memory addresses): - * - * high_memory - * Persistent kmap area - * PKMAP_BASE - * fixed_addresses - * FIXADDR_START - * FIXADDR_TOP - * Vmalloc area - * VMALLOC_START - * VMALLOC_END - */ -#define PKMAP_BASE (FIXADDR_START - PMD_SIZE) -#define LAST_PKMAP PTRS_PER_PTE -#define LAST_PKMAP_MASK (LAST_PKMAP - 1) -#define PKMAP_NR(virt) (((virt) - PKMAP_BASE) >> PAGE_SHIFT) -#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT)) - -#define kmap_prot PAGE_KERNEL - -static inline void flush_cache_kmaps(void) -{ - flush_cache_all(); -} - -/* declarations for highmem.c */ -extern unsigned long highstart_pfn, highend_pfn; - -extern pte_t *pkmap_page_table; - -extern void *kmap_high(struct page *page); -extern void kunmap_high(struct page *page); - -extern void kmap_init(void); - -/* - * The following functions are already defined by <linux/highmem.h> - * when CONFIG_HIGHMEM is not set. - */ -#ifdef CONFIG_HIGHMEM -extern void *kmap(struct page *page); -extern void kunmap(struct page *page); -extern void *kmap_atomic(struct page *page); -extern void __kunmap_atomic(void *kvaddr); -extern void *kmap_atomic_pfn(unsigned long pfn); -#endif - -#endif diff --git a/arch/metag/include/asm/hugetlb.h b/arch/metag/include/asm/hugetlb.h deleted file mode 100644 index 1607363d2639..000000000000 --- a/arch/metag/include/asm/hugetlb.h +++ /dev/null @@ -1,75 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_HUGETLB_H -#define _ASM_METAG_HUGETLB_H - -#include <asm/page.h> -#include <asm-generic/hugetlb.h> - - -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - -int prepare_hugepage_range(struct file *file, unsigned long addr, - unsigned long len); - -static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, - unsigned long addr, unsigned long end, - unsigned long floor, - unsigned long ceiling) -{ - free_pgd_range(tlb, addr, end, floor, ceiling); -} - -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte) -{ - set_pte_at(mm, addr, ptep, pte); -} - -static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - return ptep_get_and_clear(mm, addr, ptep); -} - -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, - unsigned long addr, pte_t *ptep) -{ -} - -static inline int huge_pte_none(pte_t pte) -{ - return pte_none(pte); -} - -static inline pte_t huge_pte_wrprotect(pte_t pte) -{ - return pte_wrprotect(pte); -} - -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - ptep_set_wrprotect(mm, addr, ptep); -} - -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, - unsigned long addr, pte_t *ptep, - pte_t pte, int dirty) -{ - return ptep_set_access_flags(vma, addr, ptep, pte, dirty); -} - -static inline pte_t huge_ptep_get(pte_t *ptep) -{ - return *ptep; -} - -static inline void arch_clear_hugepage_flags(struct page *page) -{ -} - -#endif /* _ASM_METAG_HUGETLB_H */ diff --git a/arch/metag/include/asm/hwthread.h b/arch/metag/include/asm/hwthread.h deleted file mode 100644 index 8d2171da5414..000000000000 --- a/arch/metag/include/asm/hwthread.h +++ /dev/null @@ -1,41 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C) 2008 Imagination Technologies - */ -#ifndef __METAG_HWTHREAD_H -#define __METAG_HWTHREAD_H - -#include <linux/bug.h> -#include <linux/io.h> - -#include <asm/metag_mem.h> - -#define BAD_HWTHREAD_ID (0xFFU) -#define BAD_CPU_ID (0xFFU) - -extern u8 cpu_2_hwthread_id[]; -extern u8 hwthread_id_2_cpu[]; - -/* - * Each hardware thread's Control Unit registers are memory-mapped - * and can therefore be accessed by any other hardware thread. - * - * This helper function returns the memory address where "thread"'s - * register "regnum" is mapped. - */ -static inline -void __iomem *__CU_addr(unsigned int thread, unsigned int regnum) -{ - unsigned int base, thread_offset, thread_regnum; - - WARN_ON(thread == BAD_HWTHREAD_ID); - - base = T0UCTREG0; /* Control unit base */ - - thread_offset = TnUCTRX_STRIDE * thread; - thread_regnum = TXUCTREGn_STRIDE * regnum; - - return (void __iomem *)(base + thread_offset + thread_regnum); -} - -#endif /* __METAG_HWTHREAD_H */ diff --git a/arch/metag/include/asm/io.h b/arch/metag/include/asm/io.h deleted file mode 100644 index 71cd2bc54718..000000000000 --- a/arch/metag/include/asm/io.h +++ /dev/null @@ -1,170 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_IO_H -#define _ASM_METAG_IO_H - -#include <linux/types.h> -#include <asm/pgtable-bits.h> - -#define IO_SPACE_LIMIT 0 - -#define page_to_bus page_to_phys -#define bus_to_page phys_to_page - -/* - * Generic I/O - */ - -#define __raw_readb __raw_readb -static inline u8 __raw_readb(const volatile void __iomem *addr) -{ - u8 ret; - asm volatile("GETB %0,[%1]" - : "=da" (ret) - : "da" (addr) - : "memory"); - return ret; -} - -#define __raw_readw __raw_readw -static inline u16 __raw_readw(const volatile void __iomem *addr) -{ - u16 ret; - asm volatile("GETW %0,[%1]" - : "=da" (ret) - : "da" (addr) - : "memory"); - return ret; -} - -#define __raw_readl __raw_readl -static inline u32 __raw_readl(const volatile void __iomem *addr) -{ - u32 ret; - asm volatile("GETD %0,[%1]" - : "=da" (ret) - : "da" (addr) - : "memory"); - return ret; -} - -#define __raw_readq __raw_readq -static inline u64 __raw_readq(const volatile void __iomem *addr) -{ - u64 ret; - asm volatile("GETL %0,%t0,[%1]" - : "=da" (ret) - : "da" (addr) - : "memory"); - return ret; -} - -#define __raw_writeb __raw_writeb -static inline void __raw_writeb(u8 b, volatile void __iomem *addr) -{ - asm volatile("SETB [%0],%1" - : - : "da" (addr), - "da" (b) - : "memory"); -} - -#define __raw_writew __raw_writew -static inline void __raw_writew(u16 b, volatile void __iomem *addr) -{ - asm volatile("SETW [%0],%1" - : - : "da" (addr), - "da" (b) - : "memory"); -} - -#define __raw_writel __raw_writel -static inline void __raw_writel(u32 b, volatile void __iomem *addr) -{ - asm volatile("SETD [%0],%1" - : - : "da" (addr), - "da" (b) - : "memory"); -} - -#define __raw_writeq __raw_writeq -static inline void __raw_writeq(u64 b, volatile void __iomem *addr) -{ - asm volatile("SETL [%0],%1,%t1" - : - : "da" (addr), - "da" (b) - : "memory"); -} - -/* - * The generic io.h can define all the other generic accessors - */ - -#include <asm-generic/io.h> - -/* - * Despite being a 32bit architecture, Meta can do 64bit memory accesses - * (assuming the bus supports it). - */ - -#define readq __raw_readq -#define writeq __raw_writeq - -/* - * Meta specific I/O for accessing non-MMU areas. - * - * These can be provided with a physical address rather than an __iomem pointer - * and should only be used by core architecture code for accessing fixed core - * registers. Generic drivers should use ioremap and the generic I/O accessors. - */ - -#define metag_in8(addr) __raw_readb((volatile void __iomem *)(addr)) -#define metag_in16(addr) __raw_readw((volatile void __iomem *)(addr)) -#define metag_in32(addr) __raw_readl((volatile void __iomem *)(addr)) -#define metag_in64(addr) __raw_readq((volatile void __iomem *)(addr)) - -#define metag_out8(b, addr) __raw_writeb(b, (volatile void __iomem *)(addr)) -#define metag_out16(b, addr) __raw_writew(b, (volatile void __iomem *)(addr)) -#define metag_out32(b, addr) __raw_writel(b, (volatile void __iomem *)(addr)) -#define metag_out64(b, addr) __raw_writeq(b, (volatile void __iomem *)(addr)) - -/* - * io remapping functions - */ - -extern void __iomem *__ioremap(unsigned long offset, - size_t size, unsigned long flags); -extern void __iounmap(void __iomem *addr); - -/** - * ioremap - map bus memory into CPU space - * @offset: bus address of the memory - * @size: size of the resource to map - * - * ioremap performs a platform specific sequence of operations to - * make bus memory CPU accessible via the readb/readw/readl/writeb/ - * writew/writel functions and the other mmio helpers. The returned - * address is not guaranteed to be usable directly as a virtual - * address. - */ -#define ioremap(offset, size) \ - __ioremap((offset), (size), 0) - -#define ioremap_nocache(offset, size) \ - __ioremap((offset), (size), 0) - -#define ioremap_cached(offset, size) \ - __ioremap((offset), (size), _PAGE_CACHEABLE) - -#define ioremap_wc(offset, size) \ - __ioremap((offset), (size), _PAGE_WR_COMBINE) - -#define ioremap_wt(offset, size) \ - __ioremap((offset), (size), 0) - -#define iounmap(addr) \ - __iounmap(addr) - -#endif /* _ASM_METAG_IO_H */ diff --git a/arch/metag/include/asm/irq.h b/arch/metag/include/asm/irq.h deleted file mode 100644 index cb02c29935a4..000000000000 --- a/arch/metag/include/asm/irq.h +++ /dev/null @@ -1,38 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_IRQ_H -#define __ASM_METAG_IRQ_H - -#ifdef CONFIG_4KSTACKS -extern void irq_ctx_init(int cpu); -extern void irq_ctx_exit(int cpu); -# define __ARCH_HAS_DO_SOFTIRQ -#else -static inline void irq_ctx_init(int cpu) -{ -} -static inline void irq_ctx_exit(int cpu) -{ -} -#endif - -void tbi_startup_interrupt(int); -void tbi_shutdown_interrupt(int); - -struct pt_regs; - -int tbisig_map(unsigned int hw); -extern void do_IRQ(int irq, struct pt_regs *regs); -extern void init_IRQ(void); - -#ifdef CONFIG_METAG_SUSPEND_MEM -int traps_save_context(void); -int traps_restore_context(void); -#endif - -#include <asm-generic/irq.h> - -#ifdef CONFIG_HOTPLUG_CPU -extern void migrate_irqs(void); -#endif - -#endif /* __ASM_METAG_IRQ_H */ diff --git a/arch/metag/include/asm/irqflags.h b/arch/metag/include/asm/irqflags.h deleted file mode 100644 index e2fe34acb93b..000000000000 --- a/arch/metag/include/asm/irqflags.h +++ /dev/null @@ -1,94 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * IRQ flags handling - * - * This file gets included from lowlevel asm headers too, to provide - * wrapped versions of the local_irq_*() APIs, based on the - * raw_local_irq_*() functions from the lowlevel headers. - */ -#ifndef _ASM_IRQFLAGS_H -#define _ASM_IRQFLAGS_H - -#ifndef __ASSEMBLY__ - -#include <asm/core_reg.h> -#include <asm/metag_regs.h> - -#define INTS_OFF_MASK TXSTATI_BGNDHALT_BIT - -#ifdef CONFIG_SMP -extern unsigned int get_trigger_mask(void); -#else - -extern unsigned int global_trigger_mask; - -static inline unsigned int get_trigger_mask(void) -{ - return global_trigger_mask; -} -#endif - -static inline unsigned long arch_local_save_flags(void) -{ - return __core_reg_get(TXMASKI); -} - -static inline int arch_irqs_disabled_flags(unsigned long flags) -{ - return (flags & ~INTS_OFF_MASK) == 0; -} - -static inline int arch_irqs_disabled(void) -{ - unsigned long flags = arch_local_save_flags(); - - return arch_irqs_disabled_flags(flags); -} - -static inline unsigned long __irqs_disabled(void) -{ - /* - * We shouldn't enable exceptions if they are not already - * enabled. This is required for chancalls to work correctly. - */ - return arch_local_save_flags() & INTS_OFF_MASK; -} - -/* - * For spinlocks, etc: - */ -static inline unsigned long arch_local_irq_save(void) -{ - unsigned long flags = __irqs_disabled(); - - asm volatile("SWAP %0,TXMASKI\n" : "=r" (flags) : "0" (flags) - : "memory"); - - return flags; -} - -static inline void arch_local_irq_restore(unsigned long flags) -{ - asm volatile("MOV TXMASKI,%0\n" : : "r" (flags) : "memory"); -} - -static inline void arch_local_irq_disable(void) -{ - unsigned long flags = __irqs_disabled(); - - asm volatile("MOV TXMASKI,%0\n" : : "r" (flags) : "memory"); -} - -#ifdef CONFIG_SMP -/* Avoid circular include dependencies through <linux/preempt.h> */ -void arch_local_irq_enable(void); -#else -static inline void arch_local_irq_enable(void) -{ - arch_local_irq_restore(get_trigger_mask()); -} -#endif - -#endif /* (__ASSEMBLY__) */ - -#endif /* !(_ASM_IRQFLAGS_H) */ diff --git a/arch/metag/include/asm/l2cache.h b/arch/metag/include/asm/l2cache.h deleted file mode 100644 index f260b158b8fe..000000000000 --- a/arch/metag/include/asm/l2cache.h +++ /dev/null @@ -1,259 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _METAG_L2CACHE_H -#define _METAG_L2CACHE_H - -#ifdef CONFIG_METAG_L2C - -#include <asm/global_lock.h> -#include <asm/io.h> - -/* - * Store the last known value of pfenable (we don't want prefetch enabled while - * L2 is off). - */ -extern int l2c_pfenable; - -/* defined in arch/metag/drivers/core-sysfs.c */ -extern struct sysdev_class cache_sysclass; - -static inline void wr_fence(void); - -/* - * Functions for reading of L2 cache configuration. - */ - -/* Get raw L2 config register (CORE_CONFIG3) */ -static inline unsigned int meta_l2c_config(void) -{ - const unsigned int *corecfg3 = (const unsigned int *)METAC_CORE_CONFIG3; - return *corecfg3; -} - -/* Get whether the L2 is present */ -static inline int meta_l2c_is_present(void) -{ - return meta_l2c_config() & METAC_CORECFG3_L2C_HAVE_L2C_BIT; -} - -/* Get whether the L2 is configured for write-back instead of write-through */ -static inline int meta_l2c_is_writeback(void) -{ - return meta_l2c_config() & METAC_CORECFG3_L2C_MODE_BIT; -} - -/* Get whether the L2 is unified instead of separated code/data */ -static inline int meta_l2c_is_unified(void) -{ - return meta_l2c_config() & METAC_CORECFG3_L2C_UNIFIED_BIT; -} - -/* Get the L2 cache size in bytes */ -static inline unsigned int meta_l2c_size(void) -{ - unsigned int size_s; - if (!meta_l2c_is_present()) - return 0; - size_s = (meta_l2c_config() & METAC_CORECFG3_L2C_SIZE_BITS) - >> METAC_CORECFG3_L2C_SIZE_S; - /* L2CSIZE is in KiB */ - return 1024 << size_s; -} - -/* Get the number of ways in the L2 cache */ -static inline unsigned int meta_l2c_ways(void) -{ - unsigned int ways_s; - if (!meta_l2c_is_present()) - return 0; - ways_s = (meta_l2c_config() & METAC_CORECFG3_L2C_NUM_WAYS_BITS) - >> METAC_CORECFG3_L2C_NUM_WAYS_S; - return 0x1 << ways_s; -} - -/* Get the line size of the L2 cache */ -static inline unsigned int meta_l2c_linesize(void) -{ - unsigned int line_size; - if (!meta_l2c_is_present()) - return 0; - line_size = (meta_l2c_config() & METAC_CORECFG3_L2C_LINE_SIZE_BITS) - >> METAC_CORECFG3_L2C_LINE_SIZE_S; - switch (line_size) { - case METAC_CORECFG3_L2C_LINE_SIZE_64B: - return 64; - default: - return 0; - } -} - -/* Get the revision ID of the L2 cache */ -static inline unsigned int meta_l2c_revision(void) -{ - return (meta_l2c_config() & METAC_CORECFG3_L2C_REV_ID_BITS) - >> METAC_CORECFG3_L2C_REV_ID_S; -} - - -/* - * Start an initialisation of the L2 cachelines and wait for completion. - * This should only be done in a LOCK1 or LOCK2 critical section while the L2 - * is disabled. - */ -static inline void _meta_l2c_init(void) -{ - metag_out32(SYSC_L2C_INIT_INIT, SYSC_L2C_INIT); - while (metag_in32(SYSC_L2C_INIT) == SYSC_L2C_INIT_IN_PROGRESS) - /* do nothing */; -} - -/* - * Start a writeback of dirty L2 cachelines and wait for completion. - * This should only be done in a LOCK1 or LOCK2 critical section. - */ -static inline void _meta_l2c_purge(void) -{ - metag_out32(SYSC_L2C_PURGE_PURGE, SYSC_L2C_PURGE); - while (metag_in32(SYSC_L2C_PURGE) == SYSC_L2C_PURGE_IN_PROGRESS) - /* do nothing */; -} - -/* Set whether the L2 cache is enabled. */ -static inline void _meta_l2c_enable(int enabled) -{ - unsigned int enable; - - enable = metag_in32(SYSC_L2C_ENABLE); - if (enabled) - enable |= SYSC_L2C_ENABLE_ENABLE_BIT; - else - enable &= ~SYSC_L2C_ENABLE_ENABLE_BIT; - metag_out32(enable, SYSC_L2C_ENABLE); -} - -/* Set whether the L2 cache prefetch is enabled. */ -static inline void _meta_l2c_pf_enable(int pfenabled) -{ - unsigned int enable; - - enable = metag_in32(SYSC_L2C_ENABLE); - if (pfenabled) - enable |= SYSC_L2C_ENABLE_PFENABLE_BIT; - else - enable &= ~SYSC_L2C_ENABLE_PFENABLE_BIT; - metag_out32(enable, SYSC_L2C_ENABLE); -} - -/* Return whether the L2 cache is enabled */ -static inline int _meta_l2c_is_enabled(void) -{ - return metag_in32(SYSC_L2C_ENABLE) & SYSC_L2C_ENABLE_ENABLE_BIT; -} - -/* Return whether the L2 cache prefetch is enabled */ -static inline int _meta_l2c_pf_is_enabled(void) -{ - return metag_in32(SYSC_L2C_ENABLE) & SYSC_L2C_ENABLE_PFENABLE_BIT; -} - - -/* Return whether the L2 cache is enabled */ -static inline int meta_l2c_is_enabled(void) -{ - int en; - - /* - * There is no need to lock at the moment, as the enable bit is never - * intermediately changed, so we will never see an intermediate result. - */ - en = _meta_l2c_is_enabled(); - - return en; -} - -/* - * Ensure the L2 cache is disabled. - * Return whether the L2 was previously disabled. - */ -int meta_l2c_disable(void); - -/* - * Ensure the L2 cache is enabled. - * Return whether the L2 was previously enabled. - */ -int meta_l2c_enable(void); - -/* Return whether the L2 cache prefetch is enabled */ -static inline int meta_l2c_pf_is_enabled(void) -{ - return l2c_pfenable; -} - -/* - * Set whether the L2 cache prefetch is enabled. - * Return whether the L2 prefetch was previously enabled. - */ -int meta_l2c_pf_enable(int pfenable); - -/* - * Flush the L2 cache. - * Return 1 if the L2 is disabled. - */ -int meta_l2c_flush(void); - -/* - * Write back all dirty cache lines in the L2 cache. - * Return 1 if the L2 is disabled or there isn't any writeback. - */ -static inline int meta_l2c_writeback(void) -{ - unsigned long flags; - int en; - - /* no need to purge if it's not a writeback cache */ - if (!meta_l2c_is_writeback()) - return 1; - - /* - * Purge only works if the L2 is enabled, and involves reading back to - * detect completion, so keep this operation atomic with other threads. - */ - __global_lock1(flags); - en = meta_l2c_is_enabled(); - if (likely(en)) { - wr_fence(); - _meta_l2c_purge(); - } - __global_unlock1(flags); - - return !en; -} - -#else /* CONFIG_METAG_L2C */ - -#define meta_l2c_config() 0 -#define meta_l2c_is_present() 0 -#define meta_l2c_is_writeback() 0 -#define meta_l2c_is_unified() 0 -#define meta_l2c_size() 0 -#define meta_l2c_ways() 0 -#define meta_l2c_linesize() 0 -#define meta_l2c_revision() 0 - -#define meta_l2c_is_enabled() 0 -#define _meta_l2c_pf_is_enabled() 0 -#define meta_l2c_pf_is_enabled() 0 -#define meta_l2c_disable() 1 -#define meta_l2c_enable() 0 -#define meta_l2c_pf_enable(X) 0 -static inline int meta_l2c_flush(void) -{ - return 1; -} -static inline int meta_l2c_writeback(void) -{ - return 1; -} - -#endif /* CONFIG_METAG_L2C */ - -#endif /* _METAG_L2CACHE_H */ diff --git a/arch/metag/include/asm/linkage.h b/arch/metag/include/asm/linkage.h deleted file mode 100644 index 3a9024ecb827..000000000000 --- a/arch/metag/include/asm/linkage.h +++ /dev/null @@ -1,8 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_LINKAGE_H -#define __ASM_LINKAGE_H - -#define __ALIGN .p2align 2 -#define __ALIGN_STR ".p2align 2" - -#endif diff --git a/arch/metag/include/asm/mach/arch.h b/arch/metag/include/asm/mach/arch.h deleted file mode 100644 index 433f94624fa2..000000000000 --- a/arch/metag/include/asm/mach/arch.h +++ /dev/null @@ -1,86 +0,0 @@ -/* - * arch/metag/include/asm/mach/arch.h - * - * Copyright (C) 2012 Imagination Technologies Ltd. - * - * based on the ARM version: - * Copyright (C) 2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef _METAG_MACH_ARCH_H_ -#define _METAG_MACH_ARCH_H_ - -#include <linux/stddef.h> - -#include <asm/clock.h> - -/** - * struct machine_desc - Describes a board controlled by a Meta. - * @name: Board/SoC name. - * @dt_compat: Array of device tree 'compatible' strings. - * @clocks: Clock callbacks. - * - * @nr_irqs: Maximum number of IRQs. - * If 0, defaults to NR_IRQS in asm-generic/irq.h. - * - * @init_early: Early init callback. - * @init_irq: IRQ init callback for setting up IRQ controllers. - * @init_machine: Arch init callback for setting up devices. - * @init_late: Late init callback. - * - * This structure is provided by each board which can be controlled by a Meta. - * It is chosen by matching the compatible strings in the device tree provided - * by the bootloader with the strings in @dt_compat, and sets up any aspects of - * the machine that aren't configured with device tree (yet). - */ -struct machine_desc { - const char *name; - const char **dt_compat; - struct meta_clock_desc *clocks; - - unsigned int nr_irqs; - - void (*init_early)(void); - void (*init_irq)(void); - void (*init_machine)(void); - void (*init_late)(void); -}; - -/* - * Current machine - only accessible during boot. - */ -extern const struct machine_desc *machine_desc; - -/* - * Machine type table - also only accessible during boot - */ -extern struct machine_desc __arch_info_begin[], __arch_info_end[]; -#define for_each_machine_desc(p) \ - for (p = __arch_info_begin; p < __arch_info_end; p++) - -static inline struct machine_desc *default_machine_desc(void) -{ - /* the default machine is the last one linked in */ - if (__arch_info_end - 1 < __arch_info_begin) - return NULL; - return __arch_info_end - 1; -} - -/* - * Set of macros to define architecture features. This is built into - * a table by the linker. - */ -#define MACHINE_START(_type, _name) \ -static const struct machine_desc __mach_desc_##_type \ -__used \ -__attribute__((__section__(".arch.info.init"))) = { \ - .name = _name, - -#define MACHINE_END \ -}; - -#endif /* _METAG_MACH_ARCH_H_ */ diff --git a/arch/metag/include/asm/metag_isa.h b/arch/metag/include/asm/metag_isa.h deleted file mode 100644 index c8aa2ae3899f..000000000000 --- a/arch/metag/include/asm/metag_isa.h +++ /dev/null @@ -1,81 +0,0 @@ -/* - * asm/metag_isa.h - * - * Copyright (C) 2000-2007, 2012 Imagination Technologies. - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. - * - * Various defines for Meta instruction set. - */ - -#ifndef _ASM_METAG_ISA_H_ -#define _ASM_METAG_ISA_H_ - - -/* L1 cache layout */ - -/* Data cache line size as bytes and shift */ -#define DCACHE_LINE_BYTES 64 -#define DCACHE_LINE_S 6 - -/* Number of ways in the data cache */ -#define DCACHE_WAYS 4 - -/* Instruction cache line size as bytes and shift */ -#define ICACHE_LINE_BYTES 64 -#define ICACHE_LINE_S 6 - -/* Number of ways in the instruction cache */ -#define ICACHE_WAYS 4 - - -/* - * CACHEWD/CACHEWL instructions use the bottom 8 bits of the data presented to - * control the operation actually achieved. - */ -/* Use of these two bits should be discouraged since the bits dont have - * consistent meanings - */ -#define CACHEW_ICACHE_BIT 0x01 -#define CACHEW_TLBFLUSH_BIT 0x02 - -#define CACHEW_FLUSH_L1D_L2 0x0 -#define CACHEW_INVALIDATE_L1I 0x1 -#define CACHEW_INVALIDATE_L1DTLB 0x2 -#define CACHEW_INVALIDATE_L1ITLB 0x3 -#define CACHEW_WRITEBACK_L1D_L2 0x4 -#define CACHEW_INVALIDATE_L1D 0x8 -#define CACHEW_INVALIDATE_L1D_L2 0xC - -/* - * CACHERD/CACHERL instructions use bits 3:5 of the address presented to - * control the operation achieved and hence the specific result. - */ -#define CACHER_ADDR_BITS 0xFFFFFFC0 -#define CACHER_OPER_BITS 0x00000030 -#define CACHER_OPER_S 4 -#define CACHER_OPER_LINPHY 0 -#define CACHER_ICACHE_BIT 0x00000008 -#define CACHER_ICACHE_S 3 - -/* - * CACHERD/CACHERL LINPHY Oper result is one/two 32-bit words - * - * If CRLINPHY0_VAL_BIT (Bit 0) set then, - * Lower 32-bits corresponds to MMCU_ENTRY_* above. - * Upper 32-bits corresponds to CRLINPHY1_* values below (if requested). - * else - * Lower 32-bits corresponds to CRLINPHY0_* values below. - * Upper 32-bits undefined. - */ -#define CRLINPHY0_VAL_BIT 0x00000001 -#define CRLINPHY0_FIRST_BIT 0x00000004 /* Set if VAL=0 due to first level */ - -#define CRLINPHY1_READ_BIT 0x00000001 /* Set if reads permitted */ -#define CRLINPHY1_SINGLE_BIT 0x00000004 /* Set if TLB does not cache entry */ -#define CRLINPHY1_PAGEMSK_BITS 0x0000FFF0 /* Set to ((2^n-1)>>12) value */ -#define CRLINPHY1_PAGEMSK_S 4 - -#endif /* _ASM_METAG_ISA_H_ */ diff --git a/arch/metag/include/asm/metag_mem.h b/arch/metag/include/asm/metag_mem.h deleted file mode 100644 index 7848bc6d3b61..000000000000 --- a/arch/metag/include/asm/metag_mem.h +++ /dev/null @@ -1,1109 +0,0 @@ -/* - * asm/metag_mem.h - * - * Copyright (C) 2000-2007, 2012 Imagination Technologies. - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. - * - * Various defines for Meta (memory-mapped) registers. - */ - -#ifndef _ASM_METAG_MEM_H_ -#define _ASM_METAG_MEM_H_ - -/***************************************************************************** - * META MEMORY MAP LINEAR ADDRESS VALUES - ****************************************************************************/ -/* - * COMMON MEMORY MAP - * ----------------- - */ - -#define LINSYSTEM_BASE 0x00200000 -#define LINSYSTEM_LIMIT 0x07FFFFFF - -/* Linear cache flush now implemented via DCACHE instruction. These defines - related to a special region that used to exist for achieving cache flushes. - */ -#define LINSYSLFLUSH_S 0 - -#define LINSYSRES0_BASE 0x00200000 -#define LINSYSRES0_LIMIT 0x01FFFFFF - -#define LINSYSCUSTOM_BASE 0x02000000 -#define LINSYSCUSTOM_LIMIT 0x02FFFFFF - -#define LINSYSEXPAND_BASE 0x03000000 -#define LINSYSEXPAND_LIMIT 0x03FFFFFF - -#define LINSYSEVENT_BASE 0x04000000 -#define LINSYSEVENT_WR_ATOMIC_UNLOCK 0x04000000 -#define LINSYSEVENT_WR_ATOMIC_LOCK 0x04000040 -#define LINSYSEVENT_WR_CACHE_DISABLE 0x04000080 -#define LINSYSEVENT_WR_CACHE_ENABLE 0x040000C0 -#define LINSYSEVENT_WR_COMBINE_FLUSH 0x04000100 -#define LINSYSEVENT_WR_FENCE 0x04000140 -#define LINSYSEVENT_LIMIT 0x04000FFF - -#define LINSYSCFLUSH_BASE 0x04400000 -#define LINSYSCFLUSH_DCACHE_LINE 0x04400000 -#define LINSYSCFLUSH_ICACHE_LINE 0x04500000 -#define LINSYSCFLUSH_MMCU 0x04700000 -#ifndef METAC_1_2 -#define LINSYSCFLUSH_TxMMCU_BASE 0x04700020 -#define LINSYSCFLUSH_TxMMCU_STRIDE 0x00000008 -#endif -#define LINSYSCFLUSH_ADDR_BITS 0x000FFFFF -#define LINSYSCFLUSH_ADDR_S 0 -#define LINSYSCFLUSH_LIMIT 0x047FFFFF - -#define LINSYSCTRL_BASE 0x04800000 -#define LINSYSCTRL_LIMIT 0x04FFFFFF - -#define LINSYSMTABLE_BASE 0x05000000 -#define LINSYSMTABLE_LIMIT 0x05FFFFFF - -#define LINSYSDIRECT_BASE 0x06000000 -#define LINSYSDIRECT_LIMIT 0x07FFFFFF - -#define LINLOCAL_BASE 0x08000000 -#define LINLOCAL_LIMIT 0x7FFFFFFF - -#define LINCORE_BASE 0x80000000 -#define LINCORE_LIMIT 0x87FFFFFF - -#define LINCORE_CODE_BASE 0x80000000 -#define LINCORE_CODE_LIMIT 0x81FFFFFF - -#define LINCORE_DATA_BASE 0x82000000 -#define LINCORE_DATA_LIMIT 0x83FFFFFF - - -/* The core can support locked icache lines in this region */ -#define LINCORE_ICACHE_BASE 0x84000000 -#define LINCORE_ICACHE_LIMIT 0x85FFFFFF - -/* The core can support locked dcache lines in this region */ -#define LINCORE_DCACHE_BASE 0x86000000 -#define LINCORE_DCACHE_LIMIT 0x87FFFFFF - -#define LINGLOBAL_BASE 0x88000000 -#define LINGLOBAL_LIMIT 0xFFFDFFFF - -/* - * CHIP Core Register Map - * ---------------------- - */ -#define CORE_HWBASE 0x04800000 -#define PRIV_HWBASE 0x04810000 -#define TRIG_HWBASE 0x04820000 -#define SYSC_HWBASE 0x04830000 - -/***************************************************************************** - * INTER-THREAD KICK REGISTERS FOR SOFTWARE EVENT GENERATION - ****************************************************************************/ -/* - * These values define memory mapped registers that can be used to supply - * kicks to threads that service arbitrary software events. - */ - -#define T0KICK 0x04800800 /* Background kick 0 */ -#define TXXKICK_MAX 0xFFFF /* Maximum kicks */ -#define TnXKICK_STRIDE 0x00001000 /* Thread scale value */ -#define TnXKICK_STRIDE_S 12 -#define T0KICKI 0x04800808 /* Interrupt kick 0 */ -#define TXIKICK_OFFSET 0x00000008 /* Int level offset value */ -#define T1KICK 0x04801800 /* Background kick 1 */ -#define T1KICKI 0x04801808 /* Interrupt kick 1 */ -#define T2KICK 0x04802800 /* Background kick 2 */ -#define T2KICKI 0x04802808 /* Interrupt kick 2 */ -#define T3KICK 0x04803800 /* Background kick 3 */ -#define T3KICKI 0x04803808 /* Interrupt kick 3 */ - -/***************************************************************************** - * GLOBAL REGISTER ACCESS RESOURCES - ****************************************************************************/ -/* - * These values define memory mapped registers that allow access to the - * internal state of all threads in order to allow global set-up of thread - * state and external handling of thread events, errors, or debugging. - * - * The actual unit and register index values needed to access individul - * registers are chip specific see - METAC_TXUXX_VALUES in metac_x_y.h. - * However two C array initialisers TXUXX_MASKS and TGUXX_MASKS will always be - * defined to allow arbitrary loading, display, and saving of all valid - * register states without detailed knowledge of their purpose - TXUXX sets - * bits for all valid registers and TGUXX sets bits for the sub-set which are - * global. - */ - -#define T0UCTREG0 0x04800000 /* Access to all CT regs */ -#define TnUCTRX_STRIDE 0x00001000 /* Thread scale value */ -#define TXUCTREGn_STRIDE 0x00000008 /* Register scale value */ - -#define TXUXXRXDT 0x0480FFF0 /* Data to/from any threads reg */ -#define TXUXXRXRQ 0x0480FFF8 -#define TXUXXRXRQ_DREADY_BIT 0x80000000 /* Poll for done */ -#define TXUXXRXRQ_DSPEXT_BIT 0x00020000 /* Addr DSP Regs */ -#define TXUXXRXRQ_RDnWR_BIT 0x00010000 /* Set for read */ -#define TXUXXRXRQ_TX_BITS 0x00003000 /* Thread number */ -#define TXUXXRXRQ_TX_S 12 -#define TXUXXRXRQ_RX_BITS 0x000001F0 /* Register num */ -#define TXUXXRXRQ_RX_S 4 -#define TXUXXRXRQ_DSPRARD0 0 /* DSP RAM A Read Pointer 0 */ -#define TXUXXRXRQ_DSPRARD1 1 /* DSP RAM A Read Pointer 1 */ -#define TXUXXRXRQ_DSPRAWR0 2 /* DSP RAM A Write Pointer 0 */ -#define TXUXXRXRQ_DSPRAWR2 3 /* DSP RAM A Write Pointer 1 */ -#define TXUXXRXRQ_DSPRBRD0 4 /* DSP RAM B Read Pointer 0 */ -#define TXUXXRXRQ_DSPRBRD1 5 /* DSP RAM B Read Pointer 1 */ -#define TXUXXRXRQ_DSPRBWR0 6 /* DSP RAM B Write Pointer 0 */ -#define TXUXXRXRQ_DSPRBWR1 7 /* DSP RAM B Write Pointer 1 */ -#define TXUXXRXRQ_DSPRARINC0 8 /* DSP RAM A Read Increment 0 */ -#define TXUXXRXRQ_DSPRARINC1 9 /* DSP RAM A Read Increment 1 */ -#define TXUXXRXRQ_DSPRAWINC0 10 /* DSP RAM A Write Increment 0 */ -#define TXUXXRXRQ_DSPRAWINC1 11 /* DSP RAM A Write Increment 1 */ -#define TXUXXRXRQ_DSPRBRINC0 12 /* DSP RAM B Read Increment 0 */ -#define TXUXXRXRQ_DSPRBRINC1 13 /* DSP RAM B Read Increment 1 */ -#define TXUXXRXRQ_DSPRBWINC0 14 /* DSP RAM B Write Increment 0 */ -#define TXUXXRXRQ_DSPRBWINC1 15 /* DSP RAM B Write Increment 1 */ - -#define TXUXXRXRQ_ACC0L0 16 /* Accumulator 0 bottom 32-bits */ -#define TXUXXRXRQ_ACC1L0 17 /* Accumulator 1 bottom 32-bits */ -#define TXUXXRXRQ_ACC2L0 18 /* Accumulator 2 bottom 32-bits */ -#define TXUXXRXRQ_ACC3L0 19 /* Accumulator 3 bottom 32-bits */ -#define TXUXXRXRQ_ACC0HI 20 /* Accumulator 0 top 8-bits */ -#define TXUXXRXRQ_ACC1HI 21 /* Accumulator 1 top 8-bits */ -#define TXUXXRXRQ_ACC2HI 22 /* Accumulator 2 top 8-bits */ -#define TXUXXRXRQ_ACC3HI 23 /* Accumulator 3 top 8-bits */ -#define TXUXXRXRQ_UXX_BITS 0x0000000F /* Unit number */ -#define TXUXXRXRQ_UXX_S 0 - -/***************************************************************************** - * PRIVILEGE CONTROL VALUES FOR MEMORY MAPPED RESOURCES - ****************************************************************************/ -/* - * These values define memory mapped registers that give control over and - * the privilege required to access other memory mapped resources. These - * registers themselves always require privilege to update them. - */ - -#define TXPRIVREG_STRIDE 0x8 /* Delta between per-thread regs */ -#define TXPRIVREG_STRIDE_S 3 - -/* - * Each bit 0 to 15 defines privilege required to access internal register - * regions 0x04800000 to 0x048FFFFF in 64k chunks - */ -#define T0PIOREG 0x04810100 -#define T1PIOREG 0x04810108 -#define T2PIOREG 0x04810110 -#define T3PIOREG 0x04810118 - -/* - * Each bit 0 to 31 defines privilege required to use the pair of - * system events implemented as writee in the regions 0x04000000 to - * 0x04000FFF in 2*64 byte chunks. - */ -#define T0PSYREG 0x04810180 -#define T1PSYREG 0x04810188 -#define T2PSYREG 0x04810190 -#define T3PSYREG 0x04810198 - -/* - * CHIP PRIV CONTROLS - * ------------------ - */ - -/* The TXPIOREG register holds a bit mask directly mappable to - corresponding addresses in the range 0x04800000 to 049FFFFF */ -#define TXPIOREG_ADDR_BITS 0x1F0000 /* Up to 32x64K bytes */ -#define TXPIOREG_ADDR_S 16 - -/* Hence based on the _HWBASE values ... */ -#define TXPIOREG_CORE_BIT (1<<((0x04800000>>16)&0x1F)) -#define TXPIOREG_PRIV_BIT (1<<((0x04810000>>16)&0x1F)) -#define TXPIOREG_TRIG_BIT (1<<((0x04820000>>16)&0x1F)) -#define TXPIOREG_SYSC_BIT (1<<((0x04830000>>16)&0x1F)) - -#define TXPIOREG_WRC_BIT 0x00080000 /* Wr combiner reg priv */ -#define TXPIOREG_LOCALBUS_RW_BIT 0x00040000 /* Local bus rd/wr priv */ -#define TXPIOREG_SYSREGBUS_RD_BIT 0x00020000 /* Sys reg bus write priv */ -#define TXPIOREG_SYSREGBUS_WR_BIT 0x00010000 /* Sys reg bus read priv */ - -/* CORE region privilege controls */ -#define T0PRIVCORE 0x04800828 -#define TXPRIVCORE_TXBKICK_BIT 0x001 /* Background kick priv */ -#define TXPRIVCORE_TXIKICK_BIT 0x002 /* Interrupt kick priv */ -#define TXPRIVCORE_TXAMAREGX_BIT 0x004 /* TXAMAREG4|5|6 priv */ -#define TnPRIVCORE_STRIDE 0x00001000 - -#define T0PRIVSYSR 0x04810000 -#define TnPRIVSYSR_STRIDE 0x00000008 -#define TnPRIVSYSR_STRIDE_S 3 -#define TXPRIVSYSR_CFLUSH_BIT 0x01 -#define TXPRIVSYSR_MTABLE_BIT 0x02 -#define TXPRIVSYSR_DIRECT_BIT 0x04 -#ifdef METAC_1_2 -#define TXPRIVSYSR_ALL_BITS 0x07 -#else -#define TXPRIVSYSR_CORE_BIT 0x08 -#define TXPRIVSYSR_CORECODE_BIT 0x10 -#define TXPRIVSYSR_ALL_BITS 0x1F -#endif -#define T1PRIVSYSR 0x04810008 -#define T2PRIVSYSR 0x04810010 -#define T3PRIVSYSR 0x04810018 - -/***************************************************************************** - * H/W TRIGGER STATE/LEVEL REGISTERS AND H/W TRIGGER VECTORS - ****************************************************************************/ -/* - * These values define memory mapped registers that give control over and - * the state of hardware trigger sources both external to the META processor - * and internal to it. - */ - -#define HWSTATMETA 0x04820000 /* Hardware status/clear META trig */ -#define HWSTATMETA_T0HALT_BITS 0xF -#define HWSTATMETA_T0HALT_S 0 -#define HWSTATMETA_T0BHALT_BIT 0x1 /* Background HALT */ -#define HWSTATMETA_T0IHALT_BIT 0x2 /* Interrupt HALT */ -#define HWSTATMETA_T0PHALT_BIT 0x4 /* PF/RO Memory HALT */ -#define HWSTATMETA_T0AMATR_BIT 0x8 /* AMA trigger */ -#define HWSTATMETA_TnINT_S 4 /* Shift by (thread*4) */ -#define HWSTATEXT 0x04820010 /* H/W status/clear external trigs 0-31 */ -#define HWSTATEXT2 0x04820018 /* H/W status/clear external trigs 32-63 */ -#define HWSTATEXT4 0x04820020 /* H/W status/clear external trigs 64-95 */ -#define HWSTATEXT6 0x04820028 /* H/W status/clear external trigs 96-128 */ -#define HWLEVELEXT 0x04820030 /* Edge/Level type of external trigs 0-31 */ -#define HWLEVELEXT2 0x04820038 /* Edge/Level type of external trigs 32-63 */ -#define HWLEVELEXT4 0x04820040 /* Edge/Level type of external trigs 64-95 */ -#define HWLEVELEXT6 0x04820048 /* Edge/Level type of external trigs 96-128 */ -#define HWLEVELEXT_XXX_LEVEL 1 /* Level sense logic in HWSTATEXTn */ -#define HWLEVELEXT_XXX_EDGE 0 -#define HWMASKEXT 0x04820050 /* Enable/disable of external trigs 0-31 */ -#define HWMASKEXT2 0x04820058 /* Enable/disable of external trigs 32-63 */ -#define HWMASKEXT4 0x04820060 /* Enable/disable of external trigs 64-95 */ -#define HWMASKEXT6 0x04820068 /* Enable/disable of external trigs 96-128 */ -#define T0VECINT_BHALT 0x04820500 /* Background HALT trigger vector */ -#define TXVECXXX_BITS 0xF /* Per-trigger vector vals 0,1,4-15 */ -#define TXVECXXX_S 0 -#define T0VECINT_IHALT 0x04820508 /* Interrupt HALT */ -#define T0VECINT_PHALT 0x04820510 /* PF/RO memory fault */ -#define T0VECINT_AMATR 0x04820518 /* AMA trigger */ -#define TnVECINT_STRIDE 0x00000020 /* Per thread stride */ -#define HWVEC0EXT 0x04820700 /* Vectors for external triggers 0-31 */ -#define HWVEC20EXT 0x04821700 /* Vectors for external triggers 32-63 */ -#define HWVEC40EXT 0x04822700 /* Vectors for external triggers 64-95 */ -#define HWVEC60EXT 0x04823700 /* Vectors for external triggers 96-127 */ -#define HWVECnEXT_STRIDE 0x00000008 /* Per trigger stride */ -#define HWVECnEXT_DEBUG 0x1 /* Redirect trigger to debug i/f */ - -/* - * CORE HWCODE-BREAKPOINT REGISTERS/VALUES - * --------------------------------------- - */ -#define CODEB0ADDR 0x0480FF00 /* Address specifier */ -#define CODEBXADDR_MATCHX_BITS 0xFFFFFFFC -#define CODEBXADDR_MATCHX_S 2 -#define CODEB0CTRL 0x0480FF08 /* Control */ -#define CODEBXCTRL_MATEN_BIT 0x80000000 /* Match 'Enable' */ -#define CODEBXCTRL_MATTXEN_BIT 0x10000000 /* Match threadn enable */ -#define CODEBXCTRL_HITC_BITS 0x00FF0000 /* Hit counter */ -#define CODEBXCTRL_HITC_S 16 -#define CODEBXHITC_NEXT 0xFF /* Next 'hit' will trigger */ -#define CODEBXHITC_HIT1 0x00 /* No 'hits' after trigger */ -#define CODEBXCTRL_MMASK_BITS 0x0000FFFC /* Mask ADDR_MATCH bits */ -#define CODEBXCTRL_MMASK_S 2 -#define CODEBXCTRL_MATLTX_BITS 0x00000003 /* Match threadn LOCAL addr */ -#define CODEBXCTRL_MATLTX_S 0 /* Match threadn LOCAL addr */ -#define CODEBnXXXX_STRIDE 0x00000010 /* Stride between CODEB reg sets */ -#define CODEBnXXXX_STRIDE_S 4 -#define CODEBnXXXX_LIMIT 3 /* Sets 0-3 */ - -/* - * CORE DATA-WATCHPOINT REGISTERS/VALUES - * ------------------------------------- - */ -#define DATAW0ADDR 0x0480FF40 /* Address specifier */ -#define DATAWXADDR_MATCHR_BITS 0xFFFFFFF8 -#define DATAWXADDR_MATCHR_S 3 -#define DATAWXADDR_MATCHW_BITS 0xFFFFFFFF -#define DATAWXADDR_MATCHW_S 0 -#define DATAW0CTRL 0x0480FF48 /* Control */ -#define DATAWXCTRL_MATRD_BIT 0x80000000 /* Match 'Read' */ -#ifndef METAC_1_2 -#define DATAWXCTRL_MATNOTTX_BIT 0x20000000 /* Invert threadn enable */ -#endif -#define DATAWXCTRL_MATWR_BIT 0x40000000 /* Match 'Write' */ -#define DATAWXCTRL_MATTXEN_BIT 0x10000000 /* Match threadn enable */ -#define DATAWXCTRL_WRSIZE_BITS 0x0F000000 /* Write Match Size */ -#define DATAWXCTRL_WRSIZE_S 24 -#define DATAWWRSIZE_ANY 0 /* Any size transaction matches */ -#define DATAWWRSIZE_8BIT 1 /* Specific sizes ... */ -#define DATAWWRSIZE_16BIT 2 -#define DATAWWRSIZE_32BIT 3 -#define DATAWWRSIZE_64BIT 4 -#define DATAWXCTRL_HITC_BITS 0x00FF0000 /* Hit counter */ -#define DATAWXCTRL_HITC_S 16 -#define DATAWXHITC_NEXT 0xFF /* Next 'hit' will trigger */ -#define DATAWXHITC_HIT1 0x00 /* No 'hits' after trigger */ -#define DATAWXCTRL_MMASK_BITS 0x0000FFF8 /* Mask ADDR_MATCH bits */ -#define DATAWXCTRL_MMASK_S 3 -#define DATAWXCTRL_MATLTX_BITS 0x00000003 /* Match threadn LOCAL addr */ -#define DATAWXCTRL_MATLTX_S 0 /* Match threadn LOCAL addr */ -#define DATAW0DMATCH0 0x0480FF50 /* Write match data */ -#define DATAW0DMATCH1 0x0480FF58 -#define DATAW0DMASK0 0x0480FF60 /* Write match data mask */ -#define DATAW0DMASK1 0x0480FF68 -#define DATAWnXXXX_STRIDE 0x00000040 /* Stride between DATAW reg sets */ -#define DATAWnXXXX_STRIDE_S 6 -#define DATAWnXXXX_LIMIT 1 /* Sets 0,1 */ - -/* - * CHIP Automatic Mips Allocation control registers - * ------------------------------------------------ - */ - -/* CORE memory mapped AMA registers */ -#define T0AMAREG4 0x04800810 -#define TXAMAREG4_POOLSIZE_BITS 0x3FFFFF00 -#define TXAMAREG4_POOLSIZE_S 8 -#define TXAMAREG4_AVALUE_BITS 0x000000FF -#define TXAMAREG4_AVALUE_S 0 -#define T0AMAREG5 0x04800818 -#define TXAMAREG5_POOLC_BITS 0x07FFFFFF -#define TXAMAREG5_POOLC_S 0 -#define T0AMAREG6 0x04800820 -#define TXAMAREG6_DLINEDEF_BITS 0x00FFFFF0 -#define TXAMAREG6_DLINEDEF_S 0 -#define TnAMAREGX_STRIDE 0x00001000 - -/* - * Memory Management Control Unit Table Entries - * -------------------------------------------- - */ -#define MMCU_ENTRY_S 4 /* -> Entry size */ -#define MMCU_ENTRY_ADDR_BITS 0xFFFFF000 /* Physical address */ -#define MMCU_ENTRY_ADDR_S 12 /* -> Page size */ -#define MMCU_ENTRY_CWIN_BITS 0x000000C0 /* Caching 'window' selection */ -#define MMCU_ENTRY_CWIN_S 6 -#define MMCU_CWIN_UNCACHED 0 /* May not be memory etc. */ -#define MMCU_CWIN_BURST 1 /* Cached but LRU unset */ -#define MMCU_CWIN_C1SET 2 /* Cached in 1 set only */ -#define MMCU_CWIN_CACHED 3 /* Fully cached */ -#define MMCU_ENTRY_CACHE_BIT 0x00000080 /* Set for cached region */ -#define MMCU_ECACHE1_FULL_BIT 0x00000040 /* Use all the sets */ -#define MMCU_ECACHE0_BURST_BIT 0x00000040 /* Match bursts */ -#define MMCU_ENTRY_SYS_BIT 0x00000010 /* Sys-coherent access required */ -#define MMCU_ENTRY_WRC_BIT 0x00000008 /* Write combining allowed */ -#define MMCU_ENTRY_PRIV_BIT 0x00000004 /* Privilege required */ -#define MMCU_ENTRY_WR_BIT 0x00000002 /* Writes allowed */ -#define MMCU_ENTRY_VAL_BIT 0x00000001 /* Entry is valid */ - -#ifdef METAC_2_1 -/* - * Extended first-level/top table entries have extra/larger fields in later - * cores as bits 11:0 previously had no effect in such table entries. - */ -#define MMCU_E1ENT_ADDR_BITS 0xFFFFFFC0 /* Physical address */ -#define MMCU_E1ENT_ADDR_S 6 /* -> resolution < page size */ -#define MMCU_E1ENT_PGSZ_BITS 0x0000001E /* Page size for 2nd level */ -#define MMCU_E1ENT_PGSZ_S 1 -#define MMCU_E1ENT_PGSZ0_POWER 12 /* PgSz 0 -> 4K */ -#define MMCU_E1ENT_PGSZ_MAX 10 /* PgSz 10 -> 4M maximum */ -#define MMCU_E1ENT_MINIM_BIT 0x00000020 -#endif /* METAC_2_1 */ - -/* MMCU control register in SYSC region */ -#define MMCU_TABLE_PHYS_ADDR 0x04830010 -#define MMCU_TABLE_PHYS_ADDR_BITS 0xFFFFFFFC -#ifdef METAC_2_1 -#define MMCU_TABLE_PHYS_EXTEND 0x00000001 /* See below */ -#endif -#define MMCU_DCACHE_CTRL_ADDR 0x04830018 -#define MMCU_xCACHE_CTRL_ENABLE_BIT 0x00000001 -#define MMCU_xCACHE_CTRL_PARTITION_BIT 0x00000000 /* See xCPART below */ -#define MMCU_ICACHE_CTRL_ADDR 0x04830020 - -#ifdef METAC_2_1 - -/* - * Allow direct access to physical memory used to implement MMU table. - * - * Each is based on a corresponding MMCU_TnLOCAL_TABLE_PHYSn or similar - * MMCU_TnGLOBAL_TABLE_PHYSn register pair (see next). - */ -#define LINSYSMEMT0L_BASE 0x05000000 -#define LINSYSMEMT0L_LIMIT 0x051FFFFF -#define LINSYSMEMTnX_STRIDE 0x00200000 /* 2MB Local per thread */ -#define LINSYSMEMTnX_STRIDE_S 21 -#define LINSYSMEMTXG_OFFSET 0x00800000 /* +2MB Global per thread */ -#define LINSYSMEMTXG_OFFSET_S 23 -#define LINSYSMEMT1L_BASE 0x05200000 -#define LINSYSMEMT1L_LIMIT 0x053FFFFF -#define LINSYSMEMT2L_BASE 0x05400000 -#define LINSYSMEMT2L_LIMIT 0x055FFFFF -#define LINSYSMEMT3L_BASE 0x05600000 -#define LINSYSMEMT3L_LIMIT 0x057FFFFF -#define LINSYSMEMT0G_BASE 0x05800000 -#define LINSYSMEMT0G_LIMIT 0x059FFFFF -#define LINSYSMEMT1G_BASE 0x05A00000 -#define LINSYSMEMT1G_LIMIT 0x05BFFFFF -#define LINSYSMEMT2G_BASE 0x05C00000 -#define LINSYSMEMT2G_LIMIT 0x05DFFFFF -#define LINSYSMEMT3G_BASE 0x05E00000 -#define LINSYSMEMT3G_LIMIT 0x05FFFFFF - -/* - * Extended MMU table functionality allows a sparse or flat table to be - * described much more efficiently than before. - */ -#define MMCU_T0LOCAL_TABLE_PHYS0 0x04830700 -#define MMCU_TnX_TABLE_PHYSX_STRIDE 0x20 /* Offset per thread */ -#define MMCU_TnX_TABLE_PHYSX_STRIDE_S 5 -#define MMCU_TXG_TABLE_PHYSX_OFFSET 0x10 /* Global versus local */ -#define MMCU_TXG_TABLE_PHYSX_OFFSET_S 4 -#define MMCU_TBLPHYS0_DCCTRL_BITS 0x000000DF /* DC controls */ -#define MMCU_TBLPHYS0_ENTLB_BIT 0x00000020 /* Cache in TLB */ -#define MMCU_TBLPHYS0_TBLSZ_BITS 0x00000F00 /* Area supported */ -#define MMCU_TBLPHYS0_TBLSZ_S 8 -#define MMCU_TBLPHYS0_TBLSZ0_POWER 22 /* 0 -> 4M */ -#define MMCU_TBLPHYS0_TBLSZ_MAX 9 /* 9 -> 2G */ -#define MMCU_TBLPHYS0_LINBASE_BITS 0xFFC00000 /* Linear base */ -#define MMCU_TBLPHYS0_LINBASE_S 22 - -#define MMCU_T0LOCAL_TABLE_PHYS1 0x04830708 -#define MMCU_TBLPHYS1_ADDR_BITS 0xFFFFFFFC /* Physical base */ -#define MMCU_TBLPHYS1_ADDR_S 2 - -#define MMCU_T0GLOBAL_TABLE_PHYS0 0x04830710 -#define MMCU_T0GLOBAL_TABLE_PHYS1 0x04830718 -#define MMCU_T1LOCAL_TABLE_PHYS0 0x04830720 -#define MMCU_T1LOCAL_TABLE_PHYS1 0x04830728 -#define MMCU_T1GLOBAL_TABLE_PHYS0 0x04830730 -#define MMCU_T1GLOBAL_TABLE_PHYS1 0x04830738 -#define MMCU_T2LOCAL_TABLE_PHYS0 0x04830740 -#define MMCU_T2LOCAL_TABLE_PHYS1 0x04830748 -#define MMCU_T2GLOBAL_TABLE_PHYS0 0x04830750 -#define MMCU_T2GLOBAL_TABLE_PHYS1 0x04830758 -#define MMCU_T3LOCAL_TABLE_PHYS0 0x04830760 -#define MMCU_T3LOCAL_TABLE_PHYS1 0x04830768 -#define MMCU_T3GLOBAL_TABLE_PHYS0 0x04830770 -#define MMCU_T3GLOBAL_TABLE_PHYS1 0x04830778 - -#define MMCU_T0EBWCCTRL 0x04830640 -#define MMCU_TnEBWCCTRL_BITS 0x00000007 -#define MMCU_TnEBWCCTRL_S 0 -#define MMCU_TnEBWCCCTRL_DISABLE_ALL 0 -#define MMCU_TnEBWCCCTRL_ABIT25 1 -#define MMCU_TnEBWCCCTRL_ABIT26 2 -#define MMCU_TnEBWCCCTRL_ABIT27 3 -#define MMCU_TnEBWCCCTRL_ABIT28 4 -#define MMCU_TnEBWCCCTRL_ABIT29 5 -#define MMCU_TnEBWCCCTRL_ABIT30 6 -#define MMCU_TnEBWCCCTRL_ENABLE_ALL 7 -#define MMCU_TnEBWCCTRL_STRIDE 8 - -#endif /* METAC_2_1 */ - - -/* Registers within the SYSC register region */ -#define METAC_ID 0x04830000 -#define METAC_ID_MAJOR_BITS 0xFF000000 -#define METAC_ID_MAJOR_S 24 -#define METAC_ID_MINOR_BITS 0x00FF0000 -#define METAC_ID_MINOR_S 16 -#define METAC_ID_REV_BITS 0x0000FF00 -#define METAC_ID_REV_S 8 -#define METAC_ID_MAINT_BITS 0x000000FF -#define METAC_ID_MAINT_S 0 - -#ifdef METAC_2_1 -/* Use of this section is strongly deprecated */ -#define METAC_ID2 0x04830008 -#define METAC_ID2_DESIGNER_BITS 0xFFFF0000 /* Modified by customer */ -#define METAC_ID2_DESIGNER_S 16 -#define METAC_ID2_MINOR2_BITS 0x00000F00 /* 3rd digit of prod rev */ -#define METAC_ID2_MINOR2_S 8 -#define METAC_ID2_CONFIG_BITS 0x000000FF /* Wrapper configuration */ -#define METAC_ID2_CONFIG_S 0 - -/* Primary core identification and configuration information */ -#define METAC_CORE_ID 0x04831000 -#define METAC_COREID_GROUP_BITS 0xFF000000 -#define METAC_COREID_GROUP_S 24 -#define METAC_COREID_GROUP_METAG 0x14 -#define METAC_COREID_ID_BITS 0x00FF0000 -#define METAC_COREID_ID_S 16 -#define METAC_COREID_ID_W32 0x10 /* >= for 32-bit pipeline */ -#define METAC_COREID_CONFIG_BITS 0x0000FFFF -#define METAC_COREID_CONFIG_S 0 -#define METAC_COREID_CFGCACHE_BITS 0x0007 -#define METAC_COREID_CFGCACHE_S 0 -#define METAC_COREID_CFGCACHE_NOM 0 -#define METAC_COREID_CFGCACHE_TYPE0 1 -#define METAC_COREID_CFGCACHE_NOMMU 1 /* Alias for TYPE0 */ -#define METAC_COREID_CFGCACHE_NOCACHE 2 -#define METAC_COREID_CFGCACHE_PRIVNOMMU 3 -#define METAC_COREID_CFGDSP_BITS 0x0038 -#define METAC_COREID_CFGDSP_S 3 -#define METAC_COREID_CFGDSP_NOM 0 -#define METAC_COREID_CFGDSP_MIN 1 -#define METAC_COREID_NOFPACC_BIT 0x0040 /* Set if no FPU accum */ -#define METAC_COREID_CFGFPU_BITS 0x0180 -#define METAC_COREID_CFGFPU_S 7 -#define METAC_COREID_CFGFPU_NOM 0 -#define METAC_COREID_CFGFPU_SNGL 1 -#define METAC_COREID_CFGFPU_DBL 2 -#define METAC_COREID_NOAMA_BIT 0x0200 /* Set if no AMA present */ -#define METAC_COREID_NOCOH_BIT 0x0400 /* Set if no Gbl coherency */ - -/* Core revision information */ -#define METAC_CORE_REV 0x04831008 -#define METAC_COREREV_DESIGN_BITS 0xFF000000 -#define METAC_COREREV_DESIGN_S 24 -#define METAC_COREREV_MAJOR_BITS 0x00FF0000 -#define METAC_COREREV_MAJOR_S 16 -#define METAC_COREREV_MINOR_BITS 0x0000FF00 -#define METAC_COREREV_MINOR_S 8 -#define METAC_COREREV_MAINT_BITS 0x000000FF -#define METAC_COREREV_MAINT_S 0 - -/* Configuration information control outside the core */ -#define METAC_CORE_DESIGNER1 0x04831010 /* Arbitrary value */ -#define METAC_CORE_DESIGNER2 0x04831018 /* Arbitrary value */ - -/* Configuration information covering presence/number of various features */ -#define METAC_CORE_CONFIG2 0x04831020 -#define METAC_CORECFG2_COREDBGTYPE_BITS 0x60000000 /* Core debug type */ -#define METAC_CORECFG2_COREDBGTYPE_S 29 -#define METAC_CORECFG2_DCSMALL_BIT 0x04000000 /* Data cache small */ -#define METAC_CORECFG2_ICSMALL_BIT 0x02000000 /* Inst cache small */ -#define METAC_CORECFG2_DCSZNP_BITS 0x01C00000 /* Data cache size np */ -#define METAC_CORECFG2_DCSZNP_S 22 -#define METAC_CORECFG2_ICSZNP_BITS 0x00380000 /* Inst cache size np */ -#define METAC_CORECFG2_ICSZNP_S 19 -#define METAC_CORECFG2_DCSZ_BITS 0x00070000 /* Data cache size */ -#define METAC_CORECFG2_DCSZ_S 16 -#define METAC_CORECFG2_xCSZ_4K 0 /* Allocated values */ -#define METAC_CORECFG2_xCSZ_8K 1 -#define METAC_CORECFG2_xCSZ_16K 2 -#define METAC_CORECFG2_xCSZ_32K 3 -#define METAC_CORECFG2_xCSZ_64K 4 -#define METAC_CORE_C2ICSZ_BITS 0x0000E000 /* Inst cache size */ -#define METAC_CORE_C2ICSZ_S 13 -#define METAC_CORE_GBLACC_BITS 0x00001800 /* Number of Global Acc */ -#define METAC_CORE_GBLACC_S 11 -#define METAC_CORE_GBLDXR_BITS 0x00000700 /* 0 -> 0, R -> 2^(R-1) */ -#define METAC_CORE_GBLDXR_S 8 -#define METAC_CORE_GBLAXR_BITS 0x000000E0 /* 0 -> 0, R -> 2^(R-1) */ -#define METAC_CORE_GBLAXR_S 5 -#define METAC_CORE_RTTRACE_BIT 0x00000010 -#define METAC_CORE_WATCHN_BITS 0x0000000C /* 0 -> 0, N -> 2^N */ -#define METAC_CORE_WATCHN_S 2 -#define METAC_CORE_BREAKN_BITS 0x00000003 /* 0 -> 0, N -> 2^N */ -#define METAC_CORE_BREAKN_S 0 - -/* Configuration information covering presence/number of various features */ -#define METAC_CORE_CONFIG3 0x04831028 -#define METAC_CORECFG3_L2C_REV_ID_BITS 0x000F0000 /* Revision of L2 cache */ -#define METAC_CORECFG3_L2C_REV_ID_S 16 -#define METAC_CORECFG3_L2C_LINE_SIZE_BITS 0x00003000 /* L2 line size */ -#define METAC_CORECFG3_L2C_LINE_SIZE_S 12 -#define METAC_CORECFG3_L2C_LINE_SIZE_64B 0x0 /* 64 bytes */ -#define METAC_CORECFG3_L2C_NUM_WAYS_BITS 0x00000F00 /* L2 number of ways (2^n) */ -#define METAC_CORECFG3_L2C_NUM_WAYS_S 8 -#define METAC_CORECFG3_L2C_SIZE_BITS 0x000000F0 /* L2 size (2^n) */ -#define METAC_CORECFG3_L2C_SIZE_S 4 -#define METAC_CORECFG3_L2C_UNIFIED_BIT 0x00000004 /* Unified cache: */ -#define METAC_CORECFG3_L2C_UNIFIED_S 2 -#define METAC_CORECFG3_L2C_UNIFIED_UNIFIED 1 /* - Unified D/I cache */ -#define METAC_CORECFG3_L2C_UNIFIED_SEPARATE 0 /* - Separate D/I cache */ -#define METAC_CORECFG3_L2C_MODE_BIT 0x00000002 /* Cache Mode: */ -#define METAC_CORECFG3_L2C_MODE_S 1 -#define METAC_CORECFG3_L2C_MODE_WRITE_BACK 1 /* - Write back */ -#define METAC_CORECFG3_L2C_MODE_WRITE_THROUGH 0 /* - Write through */ -#define METAC_CORECFG3_L2C_HAVE_L2C_BIT 0x00000001 /* Have L2C */ -#define METAC_CORECFG3_L2C_HAVE_L2C_S 0 - -#endif /* METAC_2_1 */ - -#define SYSC_CACHE_MMU_CONFIG 0x04830028 -#ifdef METAC_2_1 -#define SYSC_CMMUCFG_DCSKEWABLE_BIT 0x00000040 -#define SYSC_CMMUCFG_ICSKEWABLE_BIT 0x00000020 -#define SYSC_CMMUCFG_DCSKEWOFF_BIT 0x00000010 /* Skew association override */ -#define SYSC_CMMUCFG_ICSKEWOFF_BIT 0x00000008 /* -> default 0 on if present */ -#define SYSC_CMMUCFG_MODE_BITS 0x00000007 /* Access to old state */ -#define SYSC_CMMUCFG_MODE_S 0 -#define SYSC_CMMUCFG_ON 0x7 -#define SYSC_CMMUCFG_EBYPASS 0x6 /* Enhanced by-pass mode */ -#define SYSC_CMMUCFG_EBYPASSIC 0x4 /* EB just inst cache */ -#define SYSC_CMMUCFG_EBYPASSDC 0x2 /* EB just data cache */ -#endif /* METAC_2_1 */ -/* Old definitions, Keep them for now */ -#define SYSC_CMMUCFG_MMU_ON_BIT 0x1 -#define SYSC_CMMUCFG_DC_ON_BIT 0x2 -#define SYSC_CMMUCFG_IC_ON_BIT 0x4 - -#define SYSC_JTAG_THREAD 0x04830030 -#define SYSC_JTAG_TX_BITS 0x00000003 /* Read only bits! */ -#define SYSC_JTAG_TX_S 0 -#define SYSC_JTAG_PRIV_BIT 0x00000004 -#ifdef METAC_2_1 -#define SYSC_JTAG_SLAVETX_BITS 0x00000018 -#define SYSC_JTAG_SLAVETX_S 3 -#endif /* METAC_2_1 */ - -#define SYSC_DCACHE_FLUSH 0x04830038 -#define SYSC_ICACHE_FLUSH 0x04830040 -#define SYSC_xCACHE_FLUSH_INIT 0x1 -#define MMCU_DIRECTMAP0_ADDR 0x04830080 /* LINSYSDIRECT_BASE -> */ -#define MMCU_DIRECTMAPn_STRIDE 0x00000010 /* 4 Region settings */ -#define MMCU_DIRECTMAPn_S 4 -#define MMCU_DIRECTMAPn_ADDR_BITS 0xFF800000 -#define MMCU_DIRECTMAPn_ADDR_S 23 -#define MMCU_DIRECTMAPn_ADDR_SCALE 0x00800000 /* 8M Regions */ -#ifdef METAC_2_1 -/* - * These fields in the above registers provide MMCU_ENTRY_* values - * for each direct mapped region to enable optimisation of these areas. - * (LSB similar to VALID must be set for enhancments to be active) - */ -#define MMCU_DIRECTMAPn_ENHANCE_BIT 0x00000001 /* 0 = no optim */ -#define MMCU_DIRECTMAPn_DCCTRL_BITS 0x000000DF /* Get DC Ctrl */ -#define MMCU_DIRECTMAPn_DCCTRL_S 0 -#define MMCU_DIRECTMAPn_ICCTRL_BITS 0x0000C000 /* Get IC Ctrl */ -#define MMCU_DIRECTMAPn_ICCTRL_S 8 -#define MMCU_DIRECTMAPn_ENTLB_BIT 0x00000020 /* Cache in TLB */ -#define MMCU_DIRECTMAPn_ICCWIN_BITS 0x0000C000 /* Get IC Win Bits */ -#define MMCU_DIRECTMAPn_ICCWIN_S 14 -#endif /* METAC_2_1 */ - -#define MMCU_DIRECTMAP1_ADDR 0x04830090 -#define MMCU_DIRECTMAP2_ADDR 0x048300a0 -#define MMCU_DIRECTMAP3_ADDR 0x048300b0 - -/* - * These bits partion each threads use of data cache or instruction cache - * resource by modifying the top 4 bits of the address within the cache - * storage area. - */ -#define SYSC_DCPART0 0x04830200 -#define SYSC_xCPARTn_STRIDE 0x00000008 -#define SYSC_xCPARTL_AND_BITS 0x0000000F /* Masks top 4 bits */ -#define SYSC_xCPARTL_AND_S 0 -#define SYSC_xCPARTG_AND_BITS 0x00000F00 /* Masks top 4 bits */ -#define SYSC_xCPARTG_AND_S 8 -#define SYSC_xCPARTL_OR_BITS 0x000F0000 /* Ors into top 4 bits */ -#define SYSC_xCPARTL_OR_S 16 -#ifdef METAC_2_1 -#define SYSC_DCPART_GCON_BIT 0x00100000 /* Coherent shared local */ -#endif /* METAC_2_1 */ -#define SYSC_xCPARTG_OR_BITS 0x0F000000 /* Ors into top 4 bits */ -#define SYSC_xCPARTG_OR_S 24 -#define SYSC_CWRMODE_BIT 0x80000000 /* Write cache mode bit */ - -#define SYSC_DCPART1 0x04830208 -#define SYSC_DCPART2 0x04830210 -#define SYSC_DCPART3 0x04830218 -#define SYSC_ICPART0 0x04830220 -#define SYSC_ICPART1 0x04830228 -#define SYSC_ICPART2 0x04830230 -#define SYSC_ICPART3 0x04830238 - -/* - * META Core Memory and Cache Update registers - */ -#define SYSC_MCMDATAX 0x04830300 /* 32-bit read/write data register */ -#define SYSC_MCMDATAT 0x04830308 /* Read or write data triggers oper */ -#define SYSC_MCMGCTRL 0x04830310 /* Control register */ -#define SYSC_MCMGCTRL_READ_BIT 0x00000001 /* Set to issue 1st read */ -#define SYSC_MCMGCTRL_AINC_BIT 0x00000002 /* Set for auto-increment */ -#define SYSC_MCMGCTRL_ADDR_BITS 0x000FFFFC /* Address or index */ -#define SYSC_MCMGCTRL_ADDR_S 2 -#define SYSC_MCMGCTRL_ID_BITS 0x0FF00000 /* Internal memory block Id */ -#define SYSC_MCMGCTRL_ID_S 20 -#define SYSC_MCMGID_NODEV 0xFF /* No Device Selected */ -#define SYSC_MCMGID_DSPRAM0A 0x04 /* DSP RAM D0 block A access */ -#define SYSC_MCMGID_DSPRAM0B 0x05 /* DSP RAM D0 block B access */ -#define SYSC_MCMGID_DSPRAM1A 0x06 /* DSP RAM D1 block A access */ -#define SYSC_MCMGID_DSPRAM1B 0x07 /* DSP RAM D1 block B access */ -#define SYSC_MCMGID_DCACHEL 0x08 /* DCACHE lines (64-bytes/line) */ -#ifdef METAC_2_1 -#define SYSC_MCMGID_DCACHETLB 0x09 /* DCACHE TLB ( Read Only ) */ -#endif /* METAC_2_1 */ -#define SYSC_MCMGID_DCACHET 0x0A /* DCACHE tags (32-bits/line) */ -#define SYSC_MCMGID_DCACHELRU 0x0B /* DCACHE LRU (8-bits/line) */ -#define SYSC_MCMGID_ICACHEL 0x0C /* ICACHE lines (64-bytes/line */ -#ifdef METAC_2_1 -#define SYSC_MCMGID_ICACHETLB 0x0D /* ICACHE TLB (Read Only ) */ -#endif /* METAC_2_1 */ -#define SYSC_MCMGID_ICACHET 0x0E /* ICACHE Tags (32-bits/line) */ -#define SYSC_MCMGID_ICACHELRU 0x0F /* ICACHE LRU (8-bits/line ) */ -#define SYSC_MCMGID_COREIRAM0 0x10 /* Core code mem id 0 */ -#define SYSC_MCMGID_COREIRAMn 0x17 -#define SYSC_MCMGID_COREDRAM0 0x18 /* Core data mem id 0 */ -#define SYSC_MCMGID_COREDRAMn 0x1F -#ifdef METAC_2_1 -#define SYSC_MCMGID_DCACHEST 0x20 /* DCACHE ST ( Read Only ) */ -#define SYSC_MCMGID_ICACHEST 0x21 /* ICACHE ST ( Read Only ) */ -#define SYSC_MCMGID_DCACHETLBLRU 0x22 /* DCACHE TLB LRU ( Read Only )*/ -#define SYSC_MCMGID_ICACHETLBLRU 0x23 /* ICACHE TLB LRU( Read Only ) */ -#define SYSC_MCMGID_DCACHESTLRU 0x24 /* DCACHE ST LRU ( Read Only ) */ -#define SYSC_MCMGID_ICACHESTLRU 0x25 /* ICACHE ST LRU ( Read Only ) */ -#define SYSC_MCMGID_DEBUGTLB 0x26 /* DEBUG TLB ( Read Only ) */ -#define SYSC_MCMGID_DEBUGST 0x27 /* DEBUG ST ( Read Only ) */ -#define SYSC_MCMGID_L2CACHEL 0x30 /* L2 Cache Lines (64-bytes/line) */ -#define SYSC_MCMGID_L2CACHET 0x31 /* L2 Cache Tags (32-bits/line) */ -#define SYSC_MCMGID_COPROX0 0x70 /* Coprocessor port id 0 */ -#define SYSC_MCMGID_COPROXn 0x77 -#endif /* METAC_2_1 */ -#define SYSC_MCMGCTRL_TR31_BIT 0x80000000 /* Trigger 31 on completion */ -#define SYSC_MCMSTATUS 0x04830318 /* Status read only */ -#define SYSC_MCMSTATUS_IDLE_BIT 0x00000001 - -/* META System Events */ -#define SYSC_SYS_EVENT 0x04830400 -#define SYSC_SYSEVT_ATOMIC_BIT 0x00000001 -#define SYSC_SYSEVT_CACHEX_BIT 0x00000002 -#define SYSC_ATOMIC_LOCK 0x04830408 -#define SYSC_ATOMIC_STATE_TX_BITS 0x0000000F -#define SYSC_ATOMIC_STATE_TX_S 0 -#ifdef METAC_1_2 -#define SYSC_ATOMIC_STATE_DX_BITS 0x000000F0 -#define SYSC_ATOMIC_STATE_DX_S 4 -#else /* METAC_1_2 */ -#define SYSC_ATOMIC_SOURCE_BIT 0x00000010 -#endif /* !METAC_1_2 */ - - -#ifdef METAC_2_1 - -/* These definitions replace the EXPAND_TIMER_DIV register defines which are to - * be deprecated. - */ -#define SYSC_TIMER_DIV 0x04830140 -#define SYSC_TIMDIV_BITS 0x000000FF -#define SYSC_TIMDIV_S 0 - -/* META Enhanced by-pass control for local and global region */ -#define MMCU_LOCAL_EBCTRL 0x04830600 -#define MMCU_GLOBAL_EBCTRL 0x04830608 -#define MMCU_EBCTRL_SINGLE_BIT 0x00000020 /* TLB Uncached */ -/* - * These fields in the above registers provide MMCU_ENTRY_* values - * for each direct mapped region to enable optimisation of these areas. - */ -#define MMCU_EBCTRL_DCCTRL_BITS 0x000000C0 /* Get DC Ctrl */ -#define MMCU_EBCTRL_DCCTRL_S 0 -#define MMCU_EBCTRL_ICCTRL_BITS 0x0000C000 /* Get DC Ctrl */ -#define MMCU_EBCTRL_ICCTRL_S 8 - -/* META Cached Core Mode Registers */ -#define MMCU_T0CCM_ICCTRL 0x04830680 /* Core cached code control */ -#define MMCU_TnCCM_xxCTRL_STRIDE 8 -#define MMCU_TnCCM_xxCTRL_STRIDE_S 3 -#define MMCU_T1CCM_ICCTRL 0x04830688 -#define MMCU_T2CCM_ICCTRL 0x04830690 -#define MMCU_T3CCM_ICCTRL 0x04830698 -#define MMCU_T0CCM_DCCTRL 0x048306C0 /* Core cached data control */ -#define MMCU_T1CCM_DCCTRL 0x048306C8 -#define MMCU_T2CCM_DCCTRL 0x048306D0 -#define MMCU_T3CCM_DCCTRL 0x048306D8 -#define MMCU_TnCCM_ENABLE_BIT 0x00000001 -#define MMCU_TnCCM_WIN3_BIT 0x00000002 -#define MMCU_TnCCM_DCWRITE_BIT 0x00000004 /* In DCCTRL only */ -#define MMCU_TnCCM_REGSZ_BITS 0x00000F00 -#define MMCU_TnCCM_REGSZ_S 8 -#define MMCU_TnCCM_REGSZ0_POWER 12 /* RegSz 0 -> 4K */ -#define MMCU_TnCCM_REGSZ_MAXBYTES 0x00080000 /* 512K max */ -#define MMCU_TnCCM_ADDR_BITS 0xFFFFF000 -#define MMCU_TnCCM_ADDR_S 12 - -#endif /* METAC_2_1 */ - -/* - * Hardware performance counter registers - * -------------------------------------- - */ -#ifdef METAC_2_1 -/* Two Performance Counter Internal Core Events Control registers */ -#define PERF_ICORE0 0x0480FFD0 -#define PERF_ICORE1 0x0480FFD8 -#define PERFI_CTRL_BITS 0x0000000F -#define PERFI_CTRL_S 0 -#define PERFI_CAH_DMISS 0x0 /* Dcache Misses in cache (TLB Hit) */ -#define PERFI_CAH_IMISS 0x1 /* Icache Misses in cache (TLB Hit) */ -#define PERFI_TLB_DMISS 0x2 /* Dcache Misses in per-thread TLB */ -#define PERFI_TLB_IMISS 0x3 /* Icache Misses in per-thread TLB */ -#define PERFI_TLB_DWRHITS 0x4 /* DC Write-Hits in per-thread TLB */ -#define PERFI_TLB_DWRMISS 0x5 /* DC Write-Miss in per-thread TLB */ -#define PERFI_CAH_DLFETCH 0x8 /* DC Read cache line fetch */ -#define PERFI_CAH_ILFETCH 0x9 /* DC Read cache line fetch */ -#define PERFI_CAH_DWFETCH 0xA /* DC Read cache word fetch */ -#define PERFI_CAH_IWFETCH 0xB /* DC Read cache word fetch */ -#endif /* METAC_2_1 */ - -/* Two memory-mapped hardware performance counter registers */ -#define PERF_COUNT0 0x0480FFE0 -#define PERF_COUNT1 0x0480FFE8 - -/* Fields in PERF_COUNTn registers */ -#define PERF_COUNT_BITS 0x00ffffff /* Event count value */ - -#define PERF_THREAD_BITS 0x0f000000 /* Thread mask selects threads */ -#define PERF_THREAD_S 24 - -#define PERF_CTRL_BITS 0xf0000000 /* Event filter control */ -#define PERF_CTRL_S 28 - -#define PERFCTRL_SUPER 0 /* Superthread cycles */ -#define PERFCTRL_REWIND 1 /* Rewinds due to Dcache Misses */ -#ifdef METAC_2_1 -#define PERFCTRL_SUPREW 2 /* Rewinds of superthreaded cycles (no mask) */ - -#define PERFCTRL_CYCLES 3 /* Counts all cycles (no mask) */ - -#define PERFCTRL_PREDBC 4 /* Conditional branch predictions */ -#define PERFCTRL_MISPBC 5 /* Conditional branch mispredictions */ -#define PERFCTRL_PREDRT 6 /* Return predictions */ -#define PERFCTRL_MISPRT 7 /* Return mispredictions */ -#endif /* METAC_2_1 */ - -#define PERFCTRL_DHITS 8 /* Dcache Hits */ -#define PERFCTRL_IHITS 9 /* Icache Hits */ -#define PERFCTRL_IMISS 10 /* Icache Misses in cache or TLB */ -#ifdef METAC_2_1 -#define PERFCTRL_DCSTALL 11 /* Dcache+TLB o/p delayed (per-thread) */ -#define PERFCTRL_ICSTALL 12 /* Icache+TLB o/p delayed (per-thread) */ - -#define PERFCTRL_INT 13 /* Internal core detailed events (see next) */ -#define PERFCTRL_EXT 15 /* External source in core periphery */ -#endif /* METAC_2_1 */ - -#ifdef METAC_2_1 -/* These definitions replace the EXPAND_PERFCHANx register defines which are to - * be deprecated. - */ -#define PERF_CHAN0 0x04830150 -#define PERF_CHAN1 0x04830158 -#define PERF_CHAN_BITS 0x0000000F -#define PERF_CHAN_S 0 -#define PERFCHAN_WRC_WRBURST 0x0 /* Write combiner write burst */ -#define PERFCHAN_WRC_WRITE 0x1 /* Write combiner write */ -#define PERFCHAN_WRC_RDBURST 0x2 /* Write combiner read burst */ -#define PERFCHAN_WRC_READ 0x3 /* Write combiner read */ -#define PERFCHAN_PREARB_DELAY 0x4 /* Pre-arbiter delay cycle */ - /* Cross-bar hold-off cycle: */ -#define PERFCHAN_XBAR_HOLDWRAP 0x5 /* wrapper register */ -#define PERFCHAN_XBAR_HOLDSBUS 0x6 /* system bus (ATP only) */ -#define PERFCHAN_XBAR_HOLDCREG 0x9 /* core registers */ -#define PERFCHAN_L2C_MISS 0x6 /* L2 Cache miss */ -#define PERFCHAN_L2C_HIT 0x7 /* L2 Cache hit */ -#define PERFCHAN_L2C_WRITEBACK 0x8 /* L2 Cache writeback */ - /* Admission delay cycle: */ -#define PERFCHAN_INPUT_CREG 0xB /* core registers */ -#define PERFCHAN_INPUT_INTR 0xC /* internal ram */ -#define PERFCHAN_INPUT_WRC 0xD /* write combiners(memory) */ - -/* Should following be removed as not in TRM anywhere? */ -#define PERFCHAN_XBAR_HOLDINTR 0x8 /* internal ram */ -#define PERFCHAN_INPUT_SBUS 0xA /* register port */ -/* End of remove section. */ - -#define PERFCHAN_MAINARB_DELAY 0xF /* Main arbiter delay cycle */ - -#endif /* METAC_2_1 */ - -#ifdef METAC_2_1 -/* - * Write combiner registers - * ------------------------ - * - * These replace the EXPAND_T0WRCOMBINE register defines, which will be - * deprecated. - */ -#define WRCOMB_CONFIG0 0x04830100 -#define WRCOMB_LFFEn_BIT 0x00004000 /* Enable auto line full flush */ -#define WRCOMB_ENABLE_BIT 0x00002000 /* Enable write combiner */ -#define WRCOMB_TIMEOUT_ENABLE_BIT 0x00001000 /* Timeout flush enable */ -#define WRCOMB_TIMEOUT_COUNT_BITS 0x000003FF -#define WRCOMB_TIMEOUT_COUNT_S 0 -#define WRCOMB_CONFIG4 0x04830180 -#define WRCOMB_PARTALLOC_BITS 0x000000C0 -#define WRCOMB_PARTALLOC_S 64 -#define WRCOMB_PARTSIZE_BITS 0x00000030 -#define WRCOMB_PARTSIZE_S 4 -#define WRCOMB_PARTOFFSET_BITS 0x0000000F -#define WRCOMB_PARTOFFSET_S 0 -#define WRCOMB_CONFIG_STRIDE 8 -#endif /* METAC_2_1 */ - -#ifdef METAC_2_1 -/* - * Thread arbiter registers - * ------------------------ - * - * These replace the EXPAND_T0ARBITER register defines, which will be - * deprecated. - */ -#define ARBITER_ARBCONFIG0 0x04830120 -#define ARBCFG_BPRIORITY_BIT 0x02000000 -#define ARBCFG_IPRIORITY_BIT 0x01000000 -#define ARBCFG_PAGE_BITS 0x00FF0000 -#define ARBCFG_PAGE_S 16 -#define ARBCFG_BBASE_BITS 0x0000FF00 -#define ARGCFG_BBASE_S 8 -#define ARBCFG_IBASE_BITS 0x000000FF -#define ARBCFG_IBASE_S 0 -#define ARBITER_TTECONFIG0 0x04820160 -#define ARBTTE_IUPPER_BITS 0xFF000000 -#define ARBTTE_IUPPER_S 24 -#define ARBTTE_ILOWER_BITS 0x00FF0000 -#define ARBTTE_ILOWER_S 16 -#define ARBTTE_BUPPER_BITS 0x0000FF00 -#define ARBTTE_BUPPER_S 8 -#define ARBTTE_BLOWER_BITS 0x000000FF -#define ARBTTE_BLOWER_S 0 -#define ARBITER_STRIDE 8 -#endif /* METAC_2_1 */ - -/* - * Expansion area registers - * -------------------------------------- - */ - -/* These defines are to be deprecated. See above instead. */ -#define EXPAND_T0WRCOMBINE 0x03000000 -#ifdef METAC_2_1 -#define EXPWRC_LFFEn_BIT 0x00004000 /* Enable auto line full flush */ -#endif /* METAC_2_1 */ -#define EXPWRC_ENABLE_BIT 0x00002000 /* Enable write combiner */ -#define EXPWRC_TIMEOUT_ENABLE_BIT 0x00001000 /* Timeout flush enable */ -#define EXPWRC_TIMEOUT_COUNT_BITS 0x000003FF -#define EXPWRC_TIMEOUT_COUNT_S 0 -#define EXPAND_TnWRCOMBINE_STRIDE 0x00000008 - -/* These defines are to be deprecated. See above instead. */ -#define EXPAND_T0ARBITER 0x03000020 -#define EXPARB_BPRIORITY_BIT 0x02000000 -#define EXPARB_IPRIORITY_BIT 0x01000000 -#define EXPARB_PAGE_BITS 0x00FF0000 -#define EXPARB_PAGE_S 16 -#define EXPARB_BBASE_BITS 0x0000FF00 -#define EXPARB_BBASE_S 8 -#define EXPARB_IBASE_BITS 0x000000FF -#define EXPARB_IBASE_S 0 -#define EXPAND_TnARBITER_STRIDE 0x00000008 - -/* These definitions are to be deprecated. See above instead. */ -#define EXPAND_TIMER_DIV 0x03000040 -#define EXPTIM_DIV_BITS 0x000000FF -#define EXPTIM_DIV_S 0 - -/* These definitions are to be deprecated. See above instead. */ -#define EXPAND_PERFCHAN0 0x03000050 -#define EXPAND_PERFCHAN1 0x03000058 -#define EXPPERF_CTRL_BITS 0x0000000F -#define EXPPERF_CTRL_S 0 -#define EXPPERF_WRC_WRBURST 0x0 /* Write combiner write burst */ -#define EXPPERF_WRC_WRITE 0x1 /* Write combiner write */ -#define EXPPERF_WRC_RDBURST 0x2 /* Write combiner read burst */ -#define EXPPERF_WRC_READ 0x3 /* Write combiner read */ -#define EXPPERF_PREARB_DELAY 0x4 /* Pre-arbiter delay cycle */ - /* Cross-bar hold-off cycle: */ -#define EXPPERF_XBAR_HOLDWRAP 0x5 /* wrapper register */ -#define EXPPERF_XBAR_HOLDSBUS 0x6 /* system bus */ -#ifdef METAC_1_2 -#define EXPPERF_XBAR_HOLDLBUS 0x7 /* local bus */ -#else /* METAC_1_2 */ -#define EXPPERF_XBAR_HOLDINTR 0x8 /* internal ram */ -#define EXPPERF_XBAR_HOLDCREG 0x9 /* core registers */ - /* Admission delay cycle: */ -#define EXPPERF_INPUT_SBUS 0xA /* register port */ -#define EXPPERF_INPUT_CREG 0xB /* core registers */ -#define EXPPERF_INPUT_INTR 0xC /* internal ram */ -#define EXPPERF_INPUT_WRC 0xD /* write combiners(memory) */ -#endif /* !METAC_1_2 */ -#define EXPPERF_MAINARB_DELAY 0xF /* Main arbiter delay cycle */ - -/* - * Debug port registers - * -------------------------------------- - */ - -/* Data Exchange Register */ -#define DBGPORT_MDBGDATAX 0x0 - -/* Data Transfer register */ -#define DBGPORT_MDBGDATAT 0x4 - -/* Control Register 0 */ -#define DBGPORT_MDBGCTRL0 0x8 -#define DBGPORT_MDBGCTRL0_ADDR_BITS 0xFFFFFFFC -#define DBGPORT_MDBGCTRL0_ADDR_S 2 -#define DBGPORT_MDBGCTRL0_AUTOINCR_BIT 0x00000002 -#define DBGPORT_MDBGCTRL0_RD_BIT 0x00000001 - -/* Control Register 1 */ -#define DBGPORT_MDBGCTRL1 0xC -#ifdef METAC_2_1 -#define DBGPORT_MDBGCTRL1_DEFERRTHREAD_BITS 0xC0000000 -#define DBGPORT_MDBGCTRL1_DEFERRTHREAD_S 30 -#endif /* METAC_2_1 */ -#define DBGPORT_MDBGCTRL1_LOCK2_INTERLOCK_BIT 0x20000000 -#define DBGPORT_MDBGCTRL1_ATOMIC_INTERLOCK_BIT 0x10000000 -#define DBGPORT_MDBGCTRL1_TRIGSTATUS_BIT 0x08000000 -#define DBGPORT_MDBGCTRL1_GBLPORT_IDLE_BIT 0x04000000 -#define DBGPORT_MDBGCTRL1_COREMEM_IDLE_BIT 0x02000000 -#define DBGPORT_MDBGCTRL1_READY_BIT 0x01000000 -#ifdef METAC_2_1 -#define DBGPORT_MDBGCTRL1_DEFERRID_BITS 0x00E00000 -#define DBGPORT_MDBGCTRL1_DEFERRID_S 21 -#define DBGPORT_MDBGCTRL1_DEFERR_BIT 0x00100000 -#endif /* METAC_2_1 */ -#define DBGPORT_MDBGCTRL1_WR_ACTIVE_BIT 0x00040000 -#define DBGPORT_MDBGCTRL1_COND_LOCK2_BIT 0x00020000 -#define DBGPORT_MDBGCTRL1_LOCK2_BIT 0x00010000 -#define DBGPORT_MDBGCTRL1_DIAGNOSE_BIT 0x00008000 -#define DBGPORT_MDBGCTRL1_FORCEDIAG_BIT 0x00004000 -#define DBGPORT_MDBGCTRL1_MEMFAULT_BITS 0x00003000 -#define DBGPORT_MDBGCTRL1_MEMFAULT_S 12 -#define DBGPORT_MDBGCTRL1_TRIGGER_BIT 0x00000100 -#ifdef METAC_2_1 -#define DBGPORT_MDBGCTRL1_INTSPECIAL_BIT 0x00000080 -#define DBGPORT_MDBGCTRL1_INTRUSIVE_BIT 0x00000040 -#endif /* METAC_2_1 */ -#define DBGPORT_MDBGCTRL1_THREAD_BITS 0x00000030 /* Thread mask selects threads */ -#define DBGPORT_MDBGCTRL1_THREAD_S 4 -#define DBGPORT_MDBGCTRL1_TRANS_SIZE_BITS 0x0000000C -#define DBGPORT_MDBGCTRL1_TRANS_SIZE_S 2 -#define DBGPORT_MDBGCTRL1_TRANS_SIZE_32_BIT 0x00000000 -#define DBGPORT_MDBGCTRL1_TRANS_SIZE_16_BIT 0x00000004 -#define DBGPORT_MDBGCTRL1_TRANS_SIZE_8_BIT 0x00000008 -#define DBGPORT_MDBGCTRL1_BYTE_ROUND_BITS 0x00000003 -#define DBGPORT_MDBGCTRL1_BYTE_ROUND_S 0 -#define DBGPORT_MDBGCTRL1_BYTE_ROUND_8_BIT 0x00000001 -#define DBGPORT_MDBGCTRL1_BYTE_ROUND_16_BIT 0x00000002 - - -/* L2 Cache registers */ -#define SYSC_L2C_INIT 0x048300C0 -#define SYSC_L2C_INIT_INIT 1 -#define SYSC_L2C_INIT_IN_PROGRESS 0 -#define SYSC_L2C_INIT_COMPLETE 1 - -#define SYSC_L2C_ENABLE 0x048300D0 -#define SYSC_L2C_ENABLE_ENABLE_BIT 0x00000001 -#define SYSC_L2C_ENABLE_PFENABLE_BIT 0x00000002 - -#define SYSC_L2C_PURGE 0x048300C8 -#define SYSC_L2C_PURGE_PURGE 1 -#define SYSC_L2C_PURGE_IN_PROGRESS 0 -#define SYSC_L2C_PURGE_COMPLETE 1 - -#endif /* _ASM_METAG_MEM_H_ */ diff --git a/arch/metag/include/asm/metag_regs.h b/arch/metag/include/asm/metag_regs.h deleted file mode 100644 index 60b750971d8a..000000000000 --- a/arch/metag/include/asm/metag_regs.h +++ /dev/null @@ -1,1184 +0,0 @@ -/* - * asm/metag_regs.h - * - * Copyright (C) 2000-2007, 2012 Imagination Technologies. - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. - * - * Various defines for Meta core (non memory-mapped) registers. - */ - -#ifndef _ASM_METAG_REGS_H_ -#define _ASM_METAG_REGS_H_ - -/* - * CHIP Unit Identifiers and Valid/Global register number masks - * ------------------------------------------------------------ - */ -#define TXUCT_ID 0x0 /* Control unit regs */ -#ifdef METAC_1_2 -#define TXUCT_MASK 0xFF0FFFFF /* Valid regs 0..31 */ -#else -#define TXUCT_MASK 0xFF1FFFFF /* Valid regs 0..31 */ -#endif -#define TGUCT_MASK 0x00000000 /* No global regs */ -#define TXUD0_ID 0x1 /* Data unit regs */ -#define TXUD1_ID 0x2 -#define TXUDX_MASK 0xFFFFFFFF /* Valid regs 0..31 */ -#define TGUDX_MASK 0xFFFF0000 /* Global regs for base inst */ -#define TXUDXDSP_MASK 0x0F0FFFFF /* Valid DSP regs */ -#define TGUDXDSP_MASK 0x0E0E0000 /* Global DSP ACC regs */ -#define TXUA0_ID 0x3 /* Address unit regs */ -#define TXUA1_ID 0x4 -#define TXUAX_MASK 0x0000FFFF /* Valid regs 0-15 */ -#define TGUAX_MASK 0x0000FF00 /* Global regs 8-15 */ -#define TXUPC_ID 0x5 /* PC registers */ -#define TXUPC_MASK 0x00000003 /* Valid regs 0- 1 */ -#define TGUPC_MASK 0x00000000 /* No global regs */ -#define TXUPORT_ID 0x6 /* Ports are not registers */ -#define TXUTR_ID 0x7 -#define TXUTR_MASK 0x0000005F /* Valid regs 0-3,4,6 */ -#define TGUTR_MASK 0x00000000 /* No global regs */ -#ifdef METAC_2_1 -#define TXUTT_ID 0x8 -#define TXUTT_MASK 0x0000000F /* Valid regs 0-3 */ -#define TGUTT_MASK 0x00000010 /* Global reg 4 */ -#define TXUFP_ID 0x9 /* FPU regs */ -#define TXUFP_MASK 0x0000FFFF /* Valid regs 0-15 */ -#define TGUFP_MASK 0x00000000 /* No global regs */ -#endif /* METAC_2_1 */ - -#ifdef METAC_1_2 -#define TXUXX_MASKS { TXUCT_MASK, TXUDX_MASK, TXUDX_MASK, TXUAX_MASK, \ - TXUAX_MASK, TXUPC_MASK, 0, TXUTR_MASK, \ - 0, 0, 0, 0, 0, 0, 0, 0 } -#define TGUXX_MASKS { TGUCT_MASK, TGUDX_MASK, TGUDX_MASK, TGUAX_MASK, \ - TGUAX_MASK, TGUPC_MASK, 0, TGUTR_MASK, \ - 0, 0, 0, 0, 0, 0, 0, 0 } -#else /* METAC_1_2 */ -#define TXUXX_MASKS { TXUCT_MASK, TXUDX_MASK, TXUDX_MASK, TXUAX_MASK, \ - TXUAX_MASK, TXUPC_MASK, 0, TXUTR_MASK, \ - TXUTT_MASK, TXUFP_MASK, 0, 0, \ - 0, 0, 0, 0 } -#define TGUXX_MASKS { TGUCT_MASK, TGUDX_MASK, TGUDX_MASK, TGUAX_MASK, \ - TGUAX_MASK, TGUPC_MASK, 0, TGUTR_MASK, \ - TGUTT_MASK, TGUFP_MASK, 0, 0, \ - 0, 0, 0, 0 } -#endif /* !METAC_1_2 */ - -#define TXUXXDSP_MASKS { 0, TXUDXDSP_MASK, TXUDXDSP_MASK, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0 } -#define TGUXXDSP_MASKS { 0, TGUDXDSP_MASK, TGUDXDSP_MASK, 0, 0, 0, 0, 0, \ - 0, 0, 0, 0, 0, 0, 0, 0 } - -/* ------------------------------------------------------------------------- -; DATA AND ADDRESS UNIT REGISTERS -; -----------------------------------------------------------------------*/ -/* - Thread local D0 registers - */ -/* D0.0 ; Holds 32-bit result, can be used as scratch */ -#define D0Re0 D0.0 -/* D0.1 ; Used to pass Arg6_32 */ -#define D0Ar6 D0.1 -/* D0.2 ; Used to pass Arg4_32 */ -#define D0Ar4 D0.2 -/* D0.3 ; Used to pass Arg2_32 to a called routine (see D1.3 below) */ -#define D0Ar2 D0.3 -/* D0.4 ; Can be used as scratch; used to save A0FrP in entry sequences */ -#define D0FrT D0.4 -/* D0.5 ; C compiler assumes preservation, save with D1.5 if used */ -/* D0.6 ; C compiler assumes preservation, save with D1.6 if used */ -/* D0.7 ; C compiler assumes preservation, save with D1.7 if used */ -/* D0.8 ; Use of D0.8 and above is not encouraged */ -/* D0.9 */ -/* D0.10 */ -/* D0.11 */ -/* D0.12 */ -/* D0.13 */ -/* D0.14 */ -/* D0.15 */ -/* - Thread local D1 registers - */ -/* D1.0 ; Holds top 32-bits of 64-bit result, can be used as scratch */ -#define D1Re0 D1.0 -/* D1.1 ; Used to pass Arg5_32 */ -#define D1Ar5 D1.1 -/* D1.2 ; Used to pass Arg3_32 */ -#define D1Ar3 D1.2 -/* D1.3 ; Used to pass Arg1_32 (first 32-bit argument) to a called routine */ -#define D1Ar1 D1.3 -/* D1.4 ; Used for Return Pointer, save during entry with A0FrP (via D0.4) */ -#define D1RtP D1.4 -/* D1.5 ; C compiler assumes preservation, save if used */ -/* D1.6 ; C compiler assumes preservation, save if used */ -/* D1.7 ; C compiler assumes preservation, save if used */ -/* D1.8 ; Use of D1.8 and above is not encouraged */ -/* D1.9 */ -/* D1.10 */ -/* D1.11 */ -/* D1.12 */ -/* D1.13 */ -/* D1.14 */ -/* D1.15 */ -/* - Thread local A0 registers - */ -/* A0.0 ; Primary stack pointer */ -#define A0StP A0.0 -/* A0.1 ; Used as local frame pointer in C, save if used (via D0.4) */ -#define A0FrP A0.1 -/* A0.2 */ -/* A0.3 */ -/* A0.4 ; Use of A0.4 and above is not encouraged */ -/* A0.5 */ -/* A0.6 */ -/* A0.7 */ -/* - Thread local A1 registers - */ -/* A1.0 ; Global static chain pointer - do not modify */ -#define A1GbP A1.0 -/* A1.1 ; Local static chain pointer in C, can be used as scratch */ -#define A1LbP A1.1 -/* A1.2 */ -/* A1.3 */ -/* A1.4 ; Use of A1.4 and above is not encouraged */ -/* A1.5 */ -/* A1.6 */ -/* A1.7 */ -#ifdef METAC_2_1 -/* Renameable registers for use with Fast Interrupts */ -/* The interrupt stack pointer (usually a global register) */ -#define A0IStP A0IReg -/* The interrupt global pointer (usually a global register) */ -#define A1IGbP A1IReg -#endif -/* - Further registers may be globally allocated via linkage/loading tools, - normally they are not used. - */ -/*------------------------------------------------------------------------- -; STACK STRUCTURE and CALLING CONVENTION -; -----------------------------------------------------------------------*/ -/* -; Calling convention indicates that the following is the state of the -; stack frame at the start of a routine- -; -; Arg9_32 [A0StP+#-12] -; Arg8_32 [A0StP+#- 8] -; Arg7_32 [A0StP+#- 4] -; A0StP-> -; -; Registers D1.3, D0.3, ..., to D0.1 are used to pass Arg1_32 to Arg6_32 -; respectively. If a routine needs to store them on the stack in order -; to make sub-calls or because of the general complexity of the routine it -; is best to dump these registers immediately at the start of a routine -; using a MSETL or SETL instruction- -; -; MSETL [A0StP],D0Ar6,D0Ar4,D0Ar2; Only dump arguments expected -;or SETL [A0StP+#8++],D0Ar2 ; Up to two 32-bit args expected -; -; For non-leaf routines it is always necessary to save and restore at least -; the return address value D1RtP on the stack. Also by convention if the -; frame is saved then a new A0FrP value must be set-up. So for non-leaf -; routines at this point both these registers must be saved onto the stack -; using a SETL instruction and the new A0FrP value is then set-up- -; -; MOV D0FrT,A0FrP -; ADD A0FrP,A0StP,#0 -; SETL [A0StP+#8++],D0FrT,D1RtP -; -; Registers D0.5, D1.5, to D1.7 are assumed to be preserved across calls so -; a SETL or MSETL instruction can be used to save the current state -; of these registers if they are modified by the current routine- -; -; MSETL [A0StP],D0.5,D0.6,D0.7 ; Only save registers modified -;or SETL [A0StP+#8++],D0.5 ; Only D0.5 and/or D1.5 modified -; -; All of the above sequences can be combined into one maximal case- -; -; MOV D0FrT,A0FrP ; Save and calculate new frame pointer -; ADD A0FrP,A0StP,#(ARS) -; MSETL [A0StP],D0Ar6,D0Ar4,D0Ar2,D0FrT,D0.5,D0.6,D0.7 -; -; Having completed the above sequence the only remaining task on routine -; entry is to reserve any local and outgoing argment storage space on the -; stack. This instruction may be omitted if the size of this region is zero- -; -; ADD A0StP,A0StP,#(LCS) -; -; LCS is the first example use of one of a number of standard local defined -; values that can be created to make assembler code more readable and -; potentially more robust- -; -; #define ARS 0x18 ; Register arg bytes saved on stack -; #define FRS 0x20 ; Frame save area size in bytes -; #define LCS 0x00 ; Locals and Outgoing arg size -; #define ARO (LCS+FRS) ; Stack offset to access args -; -; All of the above defines should be undefined (#undef) at the end of each -; routine to avoid accidental use in the next routine. -; -; Given all of the above the following stack structure is expected during -; the body of a routine if all args passed in registers are saved during -; entry- -; -; ; 'Incoming args area' -; Arg10_32 [A0StP+#-((10*4)+ARO)] Arg9_32 [A0StP+#-(( 9*4)+ARO)] -; Arg8_32 [A0StP+#-(( 8*4)+ARO)] Arg7_32 [A0StP+#-(( 7*4)+ARO)] -;--- Call point -; D0Ar6= Arg6_32 [A0StP+#-(( 6*4)+ARO)] D1Ar5=Arg5_32 [A0StP+#-(( 5*4)+ARO)] -; D0Ar4= Arg4_32 [A0StP+#-(( 4*4)+ARO)] D1Ar3=Arg3_32 [A0StP+#-(( 3*4)+ARO)] -; D0Ar2= Arg2_32 [A0StP+#-(( 2*4)+ARO)] D1Ar2=Arg1_32 [A0StP+#-(( 1*4)+ARO)] -; ; 'Frame area' -; A0FrP-> D0FrT, D1RtP, -; D0.5, D1.5, -; D0.6, D1.6, -; D0.7, D1.7, -; ; 'Locals area' -; Loc0_32 [A0StP+# (( 0*4)-LCS)], Loc1_32 [A0StP+# (( 1*4)-LCS)] -; .... other locals -; Locn_32 [A0StP+# (( n*4)-LCS)] -; ; 'Outgoing args area' -; Outm_32 [A0StP+#- ( m*4)] .... other outgoing args -; Out8_32 [A0StP+#- ( 1*4)] Out7_32 [A0StP+#- ( 1*4)] -; A0StP-> (Out1_32-Out6_32 in regs D1Ar1-D0Ar6) -; -; The exit sequence for a non-leaf routine can use the frame pointer created -; in the entry sequence to optimise the recovery of the full state- -; -; MGETL D0FrT,D0.5,D0.6,D0.7,[A0FrP] -; SUB A0StP,A0FrP,#(ARS+FRS) -; MOV A0FrP,D0FrT -; MOV PC,D1RtP -; -; Having described the most complex non-leaf case above, it is worth noting -; that if a routine is a leaf and does not use any of the caller-preserved -; state. The routine can be implemented as- -; -; ADD A0StP,A0StP,#LCS -; .... body of routine -; SUB A0StP,A0StP,#LCS -; MOV PC,D1RtP -; -; The stack adjustments can also be omitted if no local storage is required. -; -; Another exit sequence structure is more applicable if for a leaf routine -; with no local frame pointer saved/generated in which the call saved -; registers need to be saved and restored- -; -; MSETL [A0StP],D0.5,D0.6,D0.7 ; Hence FRS is 0x18, ARS is 0x00 -; ADD A0StP,A0StP,#LCS -; .... body of routine -; GETL D0.5,D1.5,[A0StP+#((0*8)-(FRS+LCS))] -; GETL D0.6,D1.6,[A0StP+#((1*8)-(FRS+LCS))] -; GETL D0.7,D1.7,[A0StP+#((2*8)-(FRS+LCS))] -; SUB A0StP,A0StP,#(ARS+FRS+LCS) -; MOV PC,D1RtP -; -; Lastly, to support profiling assembler code should use a fixed entry/exit -; sequence if the trigger define _GMON_ASM is defined- -; -; #ifndef _GMON_ASM -; ... optimised entry code -; #else -; ; Profiling entry case -; MOV D0FrT,A0FrP ; Save and calculate new frame pointer -; ADD A0FrP,A0StP,#(ARS) -; MSETL [A0StP],...,D0FrT,... or SETL [A0FrP],D0FrT,D1RtP -; CALLR D0FrT,_mcount_wrapper -; #endif -; ... body of routine -; #ifndef _GMON_ASM -; ... optimised exit code -; #else -; ; Profiling exit case -; MGETL D0FrT,...,[A0FrP] or GETL D0FrT,D1RtP,[A0FrP++] -; SUB A0StP,A0FrP,#(ARS+FRS) -; MOV A0FrP,D0FrT -; MOV PC,D1RtP -; #endif - - -; ------------------------------------------------------------------------- -; CONTROL UNIT REGISTERS -; ------------------------------------------------------------------------- -; -; See the assembler guide, hardware documentation, or the field values -; defined below for some details of the use of these registers. -*/ -#define TXENABLE CT.0 /* Need to define bit-field values in these */ -#define TXMODE CT.1 -#define TXSTATUS CT.2 /* DEFAULT 0x00020000 */ -#define TXRPT CT.3 -#define TXTIMER CT.4 -#define TXL1START CT.5 -#define TXL1END CT.6 -#define TXL1COUNT CT.7 -#define TXL2START CT.8 -#define TXL2END CT.9 -#define TXL2COUNT CT.10 -#define TXBPOBITS CT.11 -#define TXMRSIZE CT.12 -#define TXTIMERI CT.13 -#define TXDRCTRL CT.14 /* DEFAULT 0x0XXXF0F0 */ -#define TXDRSIZE CT.15 -#define TXCATCH0 CT.16 -#define TXCATCH1 CT.17 -#define TXCATCH2 CT.18 -#define TXCATCH3 CT.19 - -#ifdef METAC_2_1 -#define TXDEFR CT.20 -#define TXCPRS CT.21 -#endif - -#define TXINTERN0 CT.23 -#define TXAMAREG0 CT.24 -#define TXAMAREG1 CT.25 -#define TXAMAREG2 CT.26 -#define TXAMAREG3 CT.27 -#define TXDIVTIME CT.28 /* DEFAULT 0x00000001 */ -#define TXPRIVEXT CT.29 /* DEFAULT 0x003B0000 */ -#define TXTACTCYC CT.30 -#define TXIDLECYC CT.31 - -/***************************************************************************** - * CONTROL UNIT REGISTER BITS - ****************************************************************************/ -/* - * The following registers and where appropriate the sub-fields of those - * registers are defined for pervasive use in controlling program flow. - */ - -/* - * TXENABLE register fields - only the thread id is routinely useful - */ -#define TXENABLE_REGNUM 0 -#define TXENABLE_THREAD_BITS 0x00000700 -#define TXENABLE_THREAD_S 8 -#define TXENABLE_REV_STEP_BITS 0x000000F0 -#define TXENABLE_REV_STEP_S 4 - -/* - * TXMODE register - controls extensions of the instruction set - */ -#define TXMODE_REGNUM 1 -#define TXMODE_DEFAULT 0 /* All fields default to zero */ - -/* - * TXSTATUS register - contains a couple of stable bits that can be used - * to determine the privilege processing level and interrupt - * processing level of the current thread. - */ -#define TXSTATUS_REGNUM 2 -#define TXSTATUS_PSTAT_BIT 0x00020000 /* -> Privilege active */ -#define TXSTATUS_PSTAT_S 17 -#define TXSTATUS_ISTAT_BIT 0x00010000 /* -> In interrupt state */ -#define TXSTATUS_ISTAT_S 16 - -/* - * These are all relatively boring registers, mostly full 32-bit - */ -#define TXRPT_REGNUM 3 /* Repeat counter for XFR... instructions */ -#define TXTIMER_REGNUM 4 /* Timer-- causes timer trigger on overflow */ -#define TXL1START_REGNUM 5 /* Hardware Loop 1 Start-PC/End-PC/Count */ -#define TXL1END_REGNUM 6 -#define TXL1COUNT_REGNUM 7 -#define TXL2START_REGNUM 8 /* Hardware Loop 2 Start-PC/End-PC/Count */ -#define TXL2END_REGNUM 9 -#define TXL2COUNT_REGNUM 10 -#define TXBPOBITS_REGNUM 11 /* Branch predict override bits - tune perf */ -#define TXTIMERI_REGNUM 13 /* Timer-- time based interrupt trigger */ - -/* - * TXDIVTIME register is routinely read to calculate the time-base for - * the TXTIMER register. - */ -#define TXDIVTIME_REGNUM 28 -#define TXDIVTIME_DIV_BITS 0x000000FF -#define TXDIVTIME_DIV_S 0 -#define TXDIVTIME_DIV_MIN 0x00000001 /* Maximum resolution */ -#define TXDIVTIME_DIV_MAX 0x00000100 /* 1/1 -> 1/256 resolution */ -#define TXDIVTIME_BASE_HZ 1000000 /* Timers run at 1Mhz @1/1 */ - -/* - * TXPRIVEXT register can be consulted to decide if write access to a - * part of the threads register set is not permitted when in - * unprivileged mode (PSTAT == 0). - */ -#define TXPRIVEXT_REGNUM 29 -#define TXPRIVEXT_COPRO_BITS 0xFF000000 /* Co-processor 0-7 */ -#define TXPRIVEXT_COPRO_S 24 -#ifndef METAC_1_2 -#define TXPRIVEXT_TXTIMER_BIT 0x00080000 /* TXTIMER priv */ -#define TXPRIVEXT_TRACE_BIT 0x00040000 /* TTEXEC|TTCTRL|GTEXEC */ -#endif -#define TXPRIVEXT_TXTRIGGER_BIT 0x00020000 /* TXSTAT|TXMASK|TXPOLL */ -#define TXPRIVEXT_TXGBLCREG_BIT 0x00010000 /* Global common regs */ -#define TXPRIVEXT_CBPRIV_BIT 0x00008000 /* Mem i/f dump priv */ -#define TXPRIVEXT_ILOCK_BIT 0x00004000 /* LOCK inst priv */ -#define TXPRIVEXT_TXITACCYC_BIT 0x00002000 /* TXIDLECYC|TXTACTCYC */ -#define TXPRIVEXT_TXDIVTIME_BIT 0x00001000 /* TXDIVTIME priv */ -#define TXPRIVEXT_TXAMAREGX_BIT 0x00000800 /* TXAMAREGX priv */ -#define TXPRIVEXT_TXTIMERI_BIT 0x00000400 /* TXTIMERI priv */ -#define TXPRIVEXT_TXSTATUS_BIT 0x00000200 /* TXSTATUS priv */ -#define TXPRIVEXT_TXDISABLE_BIT 0x00000100 /* TXENABLE priv */ -#ifndef METAC_1_2 -#define TXPRIVEXT_MINIMON_BIT 0x00000080 /* Enable Minim features */ -#define TXPRIVEXT_OLDBCCON_BIT 0x00000020 /* Restore Static predictions */ -#define TXPRIVEXT_ALIGNREW_BIT 0x00000010 /* Align & precise checks */ -#endif -#define TXPRIVEXT_KEEPPRI_BIT 0x00000008 /* Use AMA_Priority if ISTAT=1*/ -#define TXPRIVEXT_TXTOGGLEI_BIT 0x00000001 /* TX.....I priv */ - -/* - * TXTACTCYC register - counts instructions issued for this thread - */ -#define TXTACTCYC_REGNUM 30 -#define TXTACTCYC_COUNT_MASK 0x00FFFFFF - -/* - * TXIDLECYC register - counts idle cycles - */ -#define TXIDLECYC_REGNUM 31 -#define TXIDLECYC_COUNT_MASK 0x00FFFFFF - -/***************************************************************************** - * DSP EXTENSIONS - ****************************************************************************/ -/* - * The following values relate to fields and controls that only a program - * using the DSP extensions of the META instruction set need to know. - */ - - -#ifndef METAC_1_2 -/* - * Allow co-processor hardware to replace the read pipeline data source in - * appropriate cases. - */ -#define TXMODE_RDCPEN_BIT 0x00800000 -#endif - -/* - * Address unit addressing modes - */ -#define TXMODE_A1ADDR_BITS 0x00007000 -#define TXMODE_A1ADDR_S 12 -#define TXMODE_A0ADDR_BITS 0x00000700 -#define TXMODE_A0ADDR_S 8 -#define TXMODE_AXADDR_MODULO 3 -#define TXMODE_AXADDR_REVB 4 -#define TXMODE_AXADDR_REVW 5 -#define TXMODE_AXADDR_REVD 6 -#define TXMODE_AXADDR_REVL 7 - -/* - * Data unit OverScale select (default 0 -> normal, 1 -> top 16 bits) - */ -#define TXMODE_DXOVERSCALE_BIT 0x00000080 - -/* - * Data unit MX mode select (default 0 -> MX16, 1 -> MX8) - */ -#define TXMODE_M8_BIT 0x00000040 - -/* - * Data unit accumulator saturation point (default -> 40 bit accumulator) - */ -#define TXMODE_DXACCSAT_BIT 0x00000020 /* Set for 32-bit accumulator */ - -/* - * Data unit accumulator saturation enable (default 0 -> no saturation) - */ -#define TXMODE_DXSAT_BIT 0x00000010 - -/* - * Data unit master rounding control (default 0 -> normal, 1 -> convergent) - */ -#define TXMODE_DXROUNDING_BIT 0x00000008 - -/* - * Data unit product shift for fractional arithmetic (default off) - */ -#define TXMODE_DXPRODSHIFT_BIT 0x00000004 - -/* - * Select the arithmetic mode (multiply mostly) for both data units - */ -#define TXMODE_DXARITH_BITS 0x00000003 -#define TXMODE_DXARITH_32 3 -#define TXMODE_DXARITH_32H 2 -#define TXMODE_DXARITH_S16 1 -#define TXMODE_DXARITH_16 0 - -/* - * TXMRSIZE register value only relevant when DSP modulo addressing active - */ -#define TXMRSIZE_REGNUM 12 -#define TXMRSIZE_MIN 0x0002 /* 0, 1 -> normal addressing logic */ -#define TXMRSIZE_MAX 0xFFFF - -/* - * TXDRCTRL register can be used to detect the actaul size of the DSP RAM - * partitions allocated to this thread. - */ -#define TXDRCTRL_REGNUM 14 -#define TXDRCTRL_SINESIZE_BITS 0x0F000000 -#define TXDRCTRL_SINESIZE_S 24 -#define TXDRCTRL_RAMSZPOW_BITS 0x001F0000 /* Limit = (1<<RAMSZPOW)-1 */ -#define TXDRCTRL_RAMSZPOW_S 16 -#define TXDRCTRL_D1RSZAND_BITS 0x0000F000 /* Mask top 4 bits - D1 */ -#define TXDRCTRL_D1RSZAND_S 12 -#define TXDRCTRL_D0RSZAND_BITS 0x000000F0 /* Mask top 4 bits - D0 */ -#define TXDRCTRL_D0RSZAND_S 4 -/* Given extracted RAMSZPOW and DnRSZAND fields this returns the size */ -#define TXDRCTRL_DXSIZE(Pow, AndBits) \ - ((((~(AndBits)) & 0x0f) + 1) << ((Pow)-4)) - -/* - * TXDRSIZE register provides modulo addressing options for each DSP RAM - */ -#define TXDRSIZE_REGNUM 15 -#define TXDRSIZE_R1MOD_BITS 0xFFFF0000 -#define TXDRSIZE_R1MOD_S 16 -#define TXDRSIZE_R0MOD_BITS 0x0000FFFF -#define TXDRSIZE_R0MOD_S 0 - -#define TXDRSIZE_RBRAD_SCALE_BITS 0x70000000 -#define TXDRSIZE_RBRAD_SCALE_S 28 -#define TXDRSIZE_RBMODSIZE_BITS 0x0FFF0000 -#define TXDRSIZE_RBMODSIZE_S 16 -#define TXDRSIZE_RARAD_SCALE_BITS 0x00007000 -#define TXDRSIZE_RARAD_SCALE_S 12 -#define TXDRSIZE_RAMODSIZE_BITS 0x00000FFF -#define TXDRSIZE_RAMODSIZE_S 0 - -/***************************************************************************** - * DEFERRED and BUS ERROR EXTENSION - ****************************************************************************/ - -/* - * TXDEFR register - Deferred exception control - */ -#define TXDEFR_REGNUM 20 -#define TXDEFR_DEFAULT 0 /* All fields default to zero */ - -/* - * Bus error state is a multi-bit positive/negative event notification from - * the bus infrastructure. - */ -#define TXDEFR_BUS_ERR_BIT 0x80000000 /* Set if error (LSB STATE) */ -#define TXDEFR_BUS_ERRI_BIT 0x40000000 /* Fetch returned error */ -#define TXDEFR_BUS_STATE_BITS 0x3F000000 /* Bus event/state data */ -#define TXDEFR_BUS_STATE_S 24 -#define TXDEFR_BUS_TRIG_BIT 0x00800000 /* Set when bus error seen */ - -/* - * Bus events are collected by background code in a deferred manner unless - * selected to trigger an extended interrupt HALT trigger when they occur. - */ -#define TXDEFR_BUS_ICTRL_BIT 0x00000080 /* Enable interrupt trigger */ - -/* - * CHIP Automatic Mips Allocation control registers - * ------------------------------------------------ - */ - -/* CT Bank AMA Registers */ -#define TXAMAREG0_REGNUM 24 -#ifdef METAC_1_2 -#define TXAMAREG0_CTRL_BITS 0x07000000 -#else /* METAC_1_2 */ -#define TXAMAREG0_RCOFF_BIT 0x08000000 -#define TXAMAREG0_DLINEHLT_BIT 0x04000000 -#define TXAMAREG0_DLINEDIS_BIT 0x02000000 -#define TXAMAREG0_CYCSTRICT_BIT 0x01000000 -#define TXAMAREG0_CTRL_BITS (TXAMAREG0_RCOFF_BIT | \ - TXAMAREG0_DLINEHLT_BIT | \ - TXAMAREG0_DLINEDIS_BIT | \ - TXAMAREG0_CYCSTRICT_BIT) -#endif /* !METAC_1_2 */ -#define TXAMAREG0_CTRL_S 24 -#define TXAMAREG0_MDM_BIT 0x00400000 -#define TXAMAREG0_MPF_BIT 0x00200000 -#define TXAMAREG0_MPE_BIT 0x00100000 -#define TXAMAREG0_MASK_BITS (TXAMAREG0_MDM_BIT | \ - TXAMAREG0_MPF_BIT | \ - TXAMAREG0_MPE_BIT) -#define TXAMAREG0_MASK_S 20 -#define TXAMAREG0_SDM_BIT 0x00040000 -#define TXAMAREG0_SPF_BIT 0x00020000 -#define TXAMAREG0_SPE_BIT 0x00010000 -#define TXAMAREG0_STATUS_BITS (TXAMAREG0_SDM_BIT | \ - TXAMAREG0_SPF_BIT | \ - TXAMAREG0_SPE_BIT) -#define TXAMAREG0_STATUS_S 16 -#define TXAMAREG0_PRIORITY_BITS 0x0000FF00 -#define TXAMAREG0_PRIORITY_S 8 -#define TXAMAREG0_BVALUE_BITS 0x000000FF -#define TXAMAREG0_BVALUE_S 0 - -#define TXAMAREG1_REGNUM 25 -#define TXAMAREG1_DELAYC_BITS 0x07FFFFFF -#define TXAMAREG1_DELAYC_S 0 - -#define TXAMAREG2_REGNUM 26 -#ifdef METAC_1_2 -#define TXAMAREG2_DLINEC_BITS 0x00FFFFFF -#define TXAMAREG2_DLINEC_S 0 -#else /* METAC_1_2 */ -#define TXAMAREG2_IRQPRIORITY_BIT 0xFF000000 -#define TXAMAREG2_IRQPRIORITY_S 24 -#define TXAMAREG2_DLINEC_BITS 0x00FFFFF0 -#define TXAMAREG2_DLINEC_S 4 -#endif /* !METAC_1_2 */ - -#define TXAMAREG3_REGNUM 27 -#define TXAMAREG2_AMABLOCK_BIT 0x00080000 -#define TXAMAREG2_AMAC_BITS 0x0000FFFF -#define TXAMAREG2_AMAC_S 0 - -/***************************************************************************** - * FPU EXTENSIONS - ****************************************************************************/ -/* - * The following registers only exist in FPU enabled cores. - */ - -/* - * TXMODE register - FPU rounding mode control/status fields - */ -#define TXMODE_FPURMODE_BITS 0x00030000 -#define TXMODE_FPURMODE_S 16 -#define TXMODE_FPURMODEWRITE_BIT 0x00040000 /* Set to change FPURMODE */ - -/* - * TXDEFR register - FPU exception handling/state is a significant source - * of deferrable errors. Run-time S/W can move handling to interrupt level - * using DEFR instruction to collect state. - */ -#define TXDEFR_FPE_FE_BITS 0x003F0000 /* Set by FPU_FE events */ -#define TXDEFR_FPE_FE_S 16 - -#define TXDEFR_FPE_INEXACT_FE_BIT 0x010000 -#define TXDEFR_FPE_UNDERFLOW_FE_BIT 0x020000 -#define TXDEFR_FPE_OVERFLOW_FE_BIT 0x040000 -#define TXDEFR_FPE_DIVBYZERO_FE_BIT 0x080000 -#define TXDEFR_FPE_INVALID_FE_BIT 0x100000 -#define TXDEFR_FPE_DENORMAL_FE_BIT 0x200000 - -#define TXDEFR_FPE_ICTRL_BITS 0x000003F /* Route to interrupts */ -#define TXDEFR_FPE_ICTRL_S 0 - -#define TXDEFR_FPE_INEXACT_ICTRL_BIT 0x01 -#define TXDEFR_FPE_UNDERFLOW_ICTRL_BIT 0x02 -#define TXDEFR_FPE_OVERFLOW_ICTRL_BIT 0x04 -#define TXDEFR_FPE_DIVBYZERO_ICTRL_BIT 0x08 -#define TXDEFR_FPE_INVALID_ICTRL_BIT 0x10 -#define TXDEFR_FPE_DENORMAL_ICTRL_BIT 0x20 - -/* - * DETAILED FPU RELATED VALUES - * --------------------------- - */ - -/* - * Rounding mode field in TXMODE can hold a number of logical values - */ -#define METAG_FPURMODE_TONEAREST 0x0 /* Default */ -#define METAG_FPURMODE_TOWARDZERO 0x1 -#define METAG_FPURMODE_UPWARD 0x2 -#define METAG_FPURMODE_DOWNWARD 0x3 - -/* - * In order to set the TXMODE register field that controls the rounding mode - * an extra bit must be set in the value written versus that read in order - * to gate writes to the rounding mode field. This allows other non-FPU code - * to modify TXMODE without knowledge of the FPU units presence and not - * influence the FPU rounding mode. This macro adds the required bit so new - * rounding modes are accepted. - */ -#define TXMODE_FPURMODE_SET(FPURMode) \ - (TXMODE_FPURMODEWRITE_BIT + ((FPURMode)<<TXMODE_FPURMODE_S)) - -/* - * To successfully restore TXMODE to zero at the end of the function the - * following value (rather than zero) must be used. - */ -#define TXMODE_FPURMODE_RESET (TXMODE_FPURMODEWRITE_BIT) - -/* - * In TXSTATUS a special bit exists to indicate if FPU H/W has been accessed - * since it was last reset. - */ -#define TXSTATUS_FPACTIVE_BIT 0x01000000 - -/* - * Exception state (see TXDEFR_FPU_FE_*) and enabling (for interrupt - * level processing (see TXDEFR_FPU_ICTRL_*) are controlled by similar - * bit mask locations within each field. - */ -#define METAG_FPU_FE_INEXACT 0x01 -#define METAG_FPU_FE_UNDERFLOW 0x02 -#define METAG_FPU_FE_OVERFLOW 0x04 -#define METAG_FPU_FE_DIVBYZERO 0x08 -#define METAG_FPU_FE_INVALID 0x10 -#define METAG_FPU_FE_DENORMAL 0x20 -#define METAG_FPU_FE_ALL_EXCEPT (METAG_FPU_FE_INEXACT | \ - METAG_FPU_FE_UNDERFLOW | \ - METAG_FPU_FE_OVERFLOW | \ - METAG_FPU_FE_DIVBYZERO | \ - METAG_FPU_FE_INVALID | \ - METAG_FPU_FE_DENORMAL) - -/***************************************************************************** - * THREAD CONTROL, ERROR, OR INTERRUPT STATE EXTENSIONS - ****************************************************************************/ -/* - * The following values are only relevant to code that externally controls - * threads, handles errors/interrupts, and/or set-up interrupt/error handlers - * for subsequent use. - */ - -/* - * TXENABLE register fields - only ENABLE_BIT is potentially read/write - */ -#define TXENABLE_MAJOR_REV_BITS 0xFF000000 -#define TXENABLE_MAJOR_REV_S 24 -#define TXENABLE_MINOR_REV_BITS 0x00FF0000 -#define TXENABLE_MINOR_REV_S 16 -#define TXENABLE_CLASS_BITS 0x0000F000 -#define TXENABLE_CLASS_S 12 -#define TXENABLE_CLASS_DSP 0x0 /* -> DSP Thread */ -#define TXENABLE_CLASS_LDSP 0x8 /* -> DSP LITE Thread */ -#define TXENABLE_CLASS_GP 0xC /* -> General Purpose Thread */ -#define TXENABLE_CLASSALT_LFPU 0x2 /* Set to indicate LITE FPU */ -#define TXENABLE_CLASSALT_FPUR8 0x1 /* Set to indicate 8xFPU regs */ -#define TXENABLE_MTXARCH_BIT 0x00000800 -#define TXENABLE_STEP_REV_BITS 0x000000F0 -#define TXENABLE_STEP_REV_S 4 -#define TXENABLE_STOPPED_BIT 0x00000004 /* TXOFF due to ENABLE->0 */ -#define TXENABLE_OFF_BIT 0x00000002 /* Thread is in off state */ -#define TXENABLE_ENABLE_BIT 0x00000001 /* Set if running */ - -/* - * TXSTATUS register - used by external/internal interrupt/error handler - */ -#define TXSTATUS_CB1MARKER_BIT 0x00800000 /* -> int level mem state */ -#define TXSTATUS_CBMARKER_BIT 0x00400000 /* -> mem i/f state dumped */ -#define TXSTATUS_MEM_FAULT_BITS 0x00300000 -#define TXSTATUS_MEM_FAULT_S 20 -#define TXSTATUS_MEMFAULT_NONE 0x0 /* -> No memory fault */ -#define TXSTATUS_MEMFAULT_GEN 0x1 /* -> General fault */ -#define TXSTATUS_MEMFAULT_PF 0x2 /* -> Page fault */ -#define TXSTATUS_MEMFAULT_RO 0x3 /* -> Read only fault */ -#define TXSTATUS_MAJOR_HALT_BITS 0x000C0000 -#define TXSTATUS_MAJOR_HALT_S 18 -#define TXSTATUS_MAJHALT_TRAP 0x0 /* -> SWITCH inst used */ -#define TXSTATUS_MAJHALT_INST 0x1 /* -> Unknown inst or fetch */ -#define TXSTATUS_MAJHALT_PRIV 0x2 /* -> Internal privilege */ -#define TXSTATUS_MAJHALT_MEM 0x3 /* -> Memory i/f fault */ -#define TXSTATUS_L_STEP_BITS 0x00000800 /* -> Progress of L oper */ -#define TXSTATUS_LSM_STEP_BITS 0x00000700 /* -> Progress of L/S mult */ -#define TXSTATUS_LSM_STEP_S 8 -#define TXSTATUS_FLAG_BITS 0x0000001F /* -> All the flags */ -#define TXSTATUS_SCC_BIT 0x00000010 /* -> Split-16 flags ... */ -#define TXSTATUS_SCF_LZ_BIT 0x00000008 /* -> Split-16 Low Z flag */ -#define TXSTATUS_SCF_HZ_BIT 0x00000004 /* -> Split-16 High Z flag */ -#define TXSTATUS_SCF_HC_BIT 0x00000002 /* -> Split-16 High C flag */ -#define TXSTATUS_SCF_LC_BIT 0x00000001 /* -> Split-16 Low C flag */ -#define TXSTATUS_CF_Z_BIT 0x00000008 /* -> Condition Z flag */ -#define TXSTATUS_CF_N_BIT 0x00000004 /* -> Condition N flag */ -#define TXSTATUS_CF_O_BIT 0x00000002 /* -> Condition O flag */ -#define TXSTATUS_CF_C_BIT 0x00000001 /* -> Condition C flag */ - -/* - * TXCATCH0-3 register contents may store information on a memory operation - * that has failed if the bit TXSTATUS_CBMARKER_BIT is set. - */ -#define TXCATCH0_REGNUM 16 -#define TXCATCH1_REGNUM 17 -#define TXCATCH1_ADDR_BITS 0xFFFFFFFF /* TXCATCH1 is Addr 0-31 */ -#define TXCATCH1_ADDR_S 0 -#define TXCATCH2_REGNUM 18 -#define TXCATCH2_DATA0_BITS 0xFFFFFFFF /* TXCATCH2 is Data 0-31 */ -#define TXCATCH2_DATA0_S 0 -#define TXCATCH3_REGNUM 19 -#define TXCATCH3_DATA1_BITS 0xFFFFFFFF /* TXCATCH3 is Data 32-63 */ -#define TXCATCH3_DATA1_S 0 - -/* - * Detailed catch state information - * -------------------------------- - */ - -/* Contents of TXCATCH0 register */ -#define TXCATCH0_LDRXX_BITS 0xF8000000 /* Load destination reg 0-31 */ -#define TXCATCH0_LDRXX_S 27 -#define TXCATCH0_LDDST_BITS 0x07FF0000 /* Load destination bits */ -#define TXCATCH0_LDDST_S 16 -#define TXCATCH0_LDDST_D1DSP 0x400 /* One bit set if it's a LOAD */ -#define TXCATCH0_LDDST_D0DSP 0x200 -#define TXCATCH0_LDDST_TMPLT 0x100 -#define TXCATCH0_LDDST_TR 0x080 -#ifdef METAC_2_1 -#define TXCATCH0_LDDST_FPU 0x040 -#endif -#define TXCATCH0_LDDST_PC 0x020 -#define TXCATCH0_LDDST_A1 0x010 -#define TXCATCH0_LDDST_A0 0x008 -#define TXCATCH0_LDDST_D1 0x004 -#define TXCATCH0_LDDST_D0 0x002 -#define TXCATCH0_LDDST_CT 0x001 -#ifdef METAC_2_1 -#define TXCATCH0_WATCHSTOP_BIT 0x00004000 /* Set if Data Watch set fault */ -#endif -#define TXCATCH0_WATCHS_BIT 0x00004000 /* Set if Data Watch set fault */ -#define TXCATCH0_WATCH1_BIT 0x00002000 /* Set if Data Watch 1 matches */ -#define TXCATCH0_WATCH0_BIT 0x00001000 /* Set if Data Watch 0 matches */ -#define TXCATCH0_FAULT_BITS 0x00000C00 /* See TXSTATUS_MEMFAULT_* */ -#define TXCATCH0_FAULT_S 10 -#define TXCATCH0_PRIV_BIT 0x00000200 /* Privilege of transaction */ -#define TXCATCH0_READ_BIT 0x00000100 /* Set for Read or Load cases */ - -#ifdef METAC_2_1 -/* LNKGET Marker bit in TXCATCH0 */ -#define TXCATCH0_LNKGET_MARKER_BIT 0x00000008 -#define TXCATCH0_PREPROC_BIT 0x00000004 -#endif - -/* Loads are indicated by one of the LDDST bits being set */ -#define TXCATCH0_LDM16_BIT 0x00000004 /* Load M16 flag */ -#define TXCATCH0_LDL2L1_BITS 0x00000003 /* Load data size L2,L1 */ -#define TXCATCH0_LDL2L1_S 0 - -/* Reads are indicated by the READ bit being set without LDDST bits */ -#define TXCATCH0_RAXX_BITS 0x0000001F /* RAXX issue port for read */ -#define TXCATCH0_RAXX_S 0 - -/* Write operations are all that remain if READ bit is not set */ -#define TXCATCH0_WMASK_BITS 0x000000FF /* Write byte lane mask */ -#define TXCATCH0_WMASK_S 0 - -#ifdef METAC_2_1 - -/* When a FPU exception is signalled then FPUSPEC == FPUSPEC_TAG */ -#define TXCATCH0_FPURDREG_BITS 0xF8000000 -#define TXCATCH0_FPURDREG_S 27 -#define TXCATCH0_FPUR1REG_BITS 0x07C00000 -#define TXCATCH0_FPUR1REG_S 22 -#define TXCATCH0_FPUSPEC_BITS 0x000F0000 -#define TXCATCH0_FPUSPEC_S 16 -#define TXCATCH0_FPUSPEC_TAG 0xF -#define TXCATCH0_FPUINSTA_BIT 0x00001000 -#define TXCATCH0_FPUINSTQ_BIT 0x00000800 -#define TXCATCH0_FPUINSTZ_BIT 0x00000400 -#define TXCATCH0_FPUINSTN_BIT 0x00000200 -#define TXCATCH0_FPUINSTO3O_BIT 0x00000100 -#define TXCATCH0_FPUWIDTH_BITS 0x000000C0 -#define TXCATCH0_FPUWIDTH_S 6 -#define TXCATCH0_FPUWIDTH_FLOAT 0 -#define TXCATCH0_FPUWIDTH_DOUBLE 1 -#define TXCATCH0_FPUWIDTH_PAIRED 2 -#define TXCATCH0_FPUOPENC_BITS 0x0000003F -#define TXCATCH0_FPUOPENC_S 0 -#define TXCATCH0_FPUOPENC_ADD 0 /* rop1=Rs1, rop3=Rs2 */ -#define TXCATCH0_FPUOPENC_SUB 1 /* rop1=Rs1, rop3=Rs2 */ -#define TXCATCH0_FPUOPENC_MUL 2 /* rop1=Rs1, rop2=Rs2 */ -#define TXCATCH0_FPUOPENC_ATOI 3 /* rop3=Rs */ -#define TXCATCH0_FPUOPENC_ATOX 4 /* rop3=Rs, uses #Imm */ -#define TXCATCH0_FPUOPENC_ITOA 5 /* rop3=Rs */ -#define TXCATCH0_FPUOPENC_XTOA 6 /* rop3=Rs, uses #Imm */ -#define TXCATCH0_FPUOPENC_ATOH 7 /* rop2=Rs */ -#define TXCATCH0_FPUOPENC_HTOA 8 /* rop2=Rs */ -#define TXCATCH0_FPUOPENC_DTOF 9 /* rop3=Rs */ -#define TXCATCH0_FPUOPENC_FTOD 10 /* rop3=Rs */ -#define TXCATCH0_FPUOPENC_DTOL 11 /* rop3=Rs */ -#define TXCATCH0_FPUOPENC_LTOD 12 /* rop3=Rs */ -#define TXCATCH0_FPUOPENC_DTOXL 13 /* rop3=Rs, uses #imm */ -#define TXCATCH0_FPUOPENC_XLTOD 14 /* rop3=Rs, uses #imm */ -#define TXCATCH0_FPUOPENC_CMP 15 /* rop1=Rs1, rop2=Rs2 */ -#define TXCATCH0_FPUOPENC_MIN 16 /* rop1=Rs1, rop2=Rs2 */ -#define TXCATCH0_FPUOPENC_MAX 17 /* rop1=Rs1, rop2=Rs2 */ -#define TXCATCH0_FPUOPENC_ADDRE 18 /* rop1=Rs1, rop3=Rs2 */ -#define TXCATCH0_FPUOPENC_SUBRE 19 /* rop1=Rs1, rop3=Rs2 */ -#define TXCATCH0_FPUOPENC_MULRE 20 /* rop1=Rs1, rop2=Rs2 */ -#define TXCATCH0_FPUOPENC_MXA 21 /* rop1=Rs1, rop2=Rs2, rop3=Rs3*/ -#define TXCATCH0_FPUOPENC_MXAS 22 /* rop1=Rs1, rop2=Rs2, rop3=Rs3*/ -#define TXCATCH0_FPUOPENC_MAR 23 /* rop1=Rs1, rop2=Rs2 */ -#define TXCATCH0_FPUOPENC_MARS 24 /* rop1=Rs1, rop2=Rs2 */ -#define TXCATCH0_FPUOPENC_MUZ 25 /* rop1=Rs1, rop2=Rs2, rop3=Rs3*/ -#define TXCATCH0_FPUOPENC_MUZS 26 /* rop1=Rs1, rop2=Rs2, rop3=Rs3*/ -#define TXCATCH0_FPUOPENC_RCP 27 /* rop2=Rs */ -#define TXCATCH0_FPUOPENC_RSQ 28 /* rop2=Rs */ - -/* For floating point exceptions TXCATCH1 is used to carry extra data */ -#define TXCATCH1_FPUR2REG_BITS 0xF8000000 -#define TXCATCH1_FPUR2REG_S 27 -#define TXCATCH1_FPUR3REG_BITS 0x07C00000 /* Undefined if O3O set */ -#define TXCATCH1_FPUR3REG_S 22 -#define TXCATCH1_FPUIMM16_BITS 0x0000FFFF -#define TXCATCH1_FPUIMM16_S 0 - -#endif /* METAC_2_1 */ - -/* - * TXDIVTIME register used to hold the partial base address of memory i/f - * state dump area. Now deprecated. - */ -#define TXDIVTIME_CBBASE_MASK 0x03FFFE00 -#define TXDIVTIME_CBBASE_LINBASE 0x80000000 -#define TXDIVTIME_CBBASE_LINBOFF 0x00000000 /* BGnd state */ -#define TXDIVTIME_CBBASE_LINIOFF 0x00000100 /* Int state */ - -/* - * TXDIVTIME register used to indicate if the read pipeline was dirty when a - * thread was interrupted, halted, or generated an exception. It is invalid - * to attempt to issue a further pipeline read address while the read - * pipeline is in the dirty state. - */ -#define TXDIVTIME_RPDIRTY_BIT 0x80000000 - -/* - * Further bits in the TXDIVTIME register allow interrupt handling code to - * short-cut the discovery the most significant bit last read from TXSTATI. - * - * This is the bit number of the trigger line that a low level interrupt - * handler should acknowledge and then perhaps the index of a corresponding - * handler function. - */ -#define TXDIVTIME_IRQENC_BITS 0x0F000000 -#define TXDIVTIME_IRQENC_S 24 - -/* - * If TXDIVTIME_RPVALID_BIT is set the read pipeline contained significant - * information when the thread was interrupted|halted|exceptioned. Each slot - * containing data is indicated by a one bit in the corresponding - * TXDIVTIME_RPMASK_BITS bit (least significance bit relates to first - * location in read pipeline - most likely to have the 1 state). Empty slots - * contain zeroes with no interlock applied on reads if RPDIRTY is currently - * set with RPMASK itself being read-only state. - */ -#define TXDIVTIME_RPMASK_BITS 0x003F0000 /* -> Full (1) Empty (0) */ -#define TXDIVTIME_RPMASK_S 16 - -/* - * TXPRIVEXT register can be used to single step thread execution and - * enforce synchronous memory i/f address checking for debugging purposes. - */ -#define TXPRIVEXT_TXSTEP_BIT 0x00000004 -#define TXPRIVEXT_MEMCHECK_BIT 0x00000002 - -/* - * TXINTERNx registers holds internal state information for H/W debugging only - */ -#define TXINTERN0_REGNUM 23 -#define TXINTERN0_LOCK2_BITS 0xF0000000 -#define TXINTERN0_LOCK2_S 28 -#define TXINTERN0_LOCK1_BITS 0x0F000000 -#define TXINTERN0_LOCK1_S 24 -#define TXINTERN0_TIFDF_BITS 0x0000F000 -#define TXINTERN0_TIFDF_S 12 -#define TXINTERN0_TIFIB_BITS 0x00000F00 -#define TXINTERN0_TIFIB_S 8 -#define TXINTERN0_TIFAF_BITS 0x000000F0 -#define TXINTERN0_TIFAF_S 4 -#define TXINTERN0_MSTATE_BITS 0x0000000F -#define TXINTERN0_MSTATE_S 0 - -/* - * TXSTAT, TXMASK, TXPOLL, TXSTATI, TXMASKI, TXPOLLI registers from trigger - * bank all have similar contents (upper kick count bits not in MASK regs) - */ -#define TXSTAT_REGNUM 0 -#define TXSTAT_TIMER_BIT 0x00000001 -#define TXSTAT_TIMER_S 0 -#define TXSTAT_KICK_BIT 0x00000002 -#define TXSTAT_KICK_S 1 -#define TXSTAT_DEFER_BIT 0x00000008 -#define TXSTAT_DEFER_S 3 -#define TXSTAT_EXTTRIG_BITS 0x0000FFF0 -#define TXSTAT_EXTTRIG_S 4 -#define TXSTAT_FPE_BITS 0x003F0000 -#define TXSTAT_FPE_S 16 -#define TXSTAT_FPE_DENORMAL_BIT 0x00200000 -#define TXSTAT_FPE_DENORMAL_S 21 -#define TXSTAT_FPE_INVALID_BIT 0x00100000 -#define TXSTAT_FPE_INVALID_S 20 -#define TXSTAT_FPE_DIVBYZERO_BIT 0x00080000 -#define TXSTAT_FPE_DIVBYZERO_S 19 -#define TXSTAT_FPE_OVERFLOW_BIT 0x00040000 -#define TXSTAT_FPE_OVERFLOW_S 18 -#define TXSTAT_FPE_UNDERFLOW_BIT 0x00020000 -#define TXSTAT_FPE_UNDERFLOW_S 17 -#define TXSTAT_FPE_INEXACT_BIT 0x00010000 -#define TXSTAT_FPE_INEXACT_S 16 -#define TXSTAT_BUSERR_BIT 0x00800000 /* Set if bus error/ack state */ -#define TXSTAT_BUSERR_S 23 -#define TXSTAT_BUSSTATE_BITS 0xFF000000 /* Read only */ -#define TXSTAT_BUSSTATE_S 24 -#define TXSTAT_KICKCNT_BITS 0xFFFF0000 -#define TXSTAT_KICKCNT_S 16 -#define TXMASK_REGNUM 1 -#define TXSTATI_REGNUM 2 -#define TXSTATI_BGNDHALT_BIT 0x00000004 -#define TXMASKI_REGNUM 3 -#define TXPOLL_REGNUM 4 -#define TXPOLLI_REGNUM 6 - -/* - * TXDRCTRL register can be used to partition the DSP RAM space available to - * this thread at startup. This is achieved by offsetting the region allocated - * to each thread. - */ -#define TXDRCTRL_D1PARTOR_BITS 0x00000F00 /* OR's into top 4 bits */ -#define TXDRCTRL_D1PARTOR_S 8 -#define TXDRCTRL_D0PARTOR_BITS 0x0000000F /* OR's into top 4 bits */ -#define TXDRCTRL_D0PARTOR_S 0 -/* Given extracted Pow and Or fields this is threads base within DSP RAM */ -#define TXDRCTRL_DXBASE(Pow, Or) ((Or)<<((Pow)-4)) - -/***************************************************************************** - * RUN TIME TRACE CONTROL REGISTERS - ****************************************************************************/ -/* - * The following values are only relevant to code that implements run-time - * trace features within the META Core - */ -#define TTEXEC TT.0 -#define TTCTRL TT.1 -#define TTMARK TT.2 -#define TTREC TT.3 -#define GTEXEC TT.4 - -#define TTEXEC_REGNUM 0 -#define TTEXEC_EXTTRIGAND_BITS 0x7F000000 -#define TTEXEC_EXTTRIGAND_S 24 -#define TTEXEC_EXTTRIGEN_BIT 0x00008000 -#define TTEXEC_EXTTRIGMATCH_BITS 0x00007F00 -#define TTEXEC_EXTTRIGMATCH_S 8 -#define TTEXEC_TCMODE_BITS 0x00000003 -#define TTEXEC_TCMODE_S 0 - -#define TTCTRL_REGNUM 1 -#define TTCTRL_TRACETT_BITS 0x00008000 -#define TTCTRL_TRACETT_S 15 -#define TTCTRL_TRACEALL_BITS 0x00002000 -#define TTCTRL_TRACEALL_S 13 -#ifdef METAC_2_1 -#define TTCTRL_TRACEALLTAG_BITS 0x00000400 -#define TTCTRL_TRACEALLTAG_S 10 -#endif /* METAC_2_1 */ -#define TTCTRL_TRACETAG_BITS 0x00000200 -#define TTCTRL_TRACETAG_S 9 -#define TTCTRL_TRACETTPC_BITS 0x00000080 -#define TTCTRL_TRACETTPC_S 7 -#define TTCTRL_TRACEMPC_BITS 0x00000020 -#define TTCTRL_TRACEMPC_S 5 -#define TTCTRL_TRACEEN_BITS 0x00000008 -#define TTCTRL_TRACEEN_S 3 -#define TTCTRL_TRACEEN1_BITS 0x00000004 -#define TTCTRL_TRACEEN1_S 2 -#define TTCTRL_TRACEPC_BITS 0x00000002 -#define TTCTRL_TRACEPC_S 1 - -#ifdef METAC_2_1 -#define TTMARK_REGNUM 2 -#define TTMARK_BITS 0xFFFFFFFF -#define TTMARK_S 0x0 - -#define TTREC_REGNUM 3 -#define TTREC_BITS 0xFFFFFFFFFFFFFFFF -#define TTREC_S 0x0 -#endif /* METAC_2_1 */ - -#define GTEXEC_REGNUM 4 -#define GTEXEC_DCRUN_BITS 0x80000000 -#define GTEXEC_DCRUN_S 31 -#define GTEXEC_ICMODE_BITS 0x0C000000 -#define GTEXEC_ICMODE_S 26 -#define GTEXEC_TCMODE_BITS 0x03000000 -#define GTEXEC_TCMODE_S 24 -#define GTEXEC_PERF1CMODE_BITS 0x00040000 -#define GTEXEC_PERF1CMODE_S 18 -#define GTEXEC_PERF0CMODE_BITS 0x00010000 -#define GTEXEC_PERF0CMODE_S 16 -#define GTEXEC_REFMSEL_BITS 0x0000F000 -#define GTEXEC_REFMSEL_S 12 -#define GTEXEC_METRICTH_BITS 0x000003FF -#define GTEXEC_METRICTH_S 0 - -#ifdef METAC_2_1 -/* - * Clock Control registers - * ----------------------- - */ -#define TXCLKCTRL_REGNUM 22 - -/* - * Default setting is with clocks always on (DEFON), turning all clocks off - * can only be done from external devices (OFF), enabling automatic clock - * gating will allow clocks to stop as units fall idle. - */ -#define TXCLKCTRL_ALL_OFF 0x02222222 -#define TXCLKCTRL_ALL_DEFON 0x01111111 -#define TXCLKCTRL_ALL_AUTO 0x02222222 - -/* - * Individual fields control caches, floating point and main data/addr units - */ -#define TXCLKCTRL_CLOCKIC_BITS 0x03000000 -#define TXCLKCTRL_CLOCKIC_S 24 -#define TXCLKCTRL_CLOCKDC_BITS 0x00300000 -#define TXCLKCTRL_CLOCKDC_S 20 -#define TXCLKCTRL_CLOCKFP_BITS 0x00030000 -#define TXCLKCTRL_CLOCKFP_S 16 -#define TXCLKCTRL_CLOCKD1_BITS 0x00003000 -#define TXCLKCTRL_CLOCKD1_S 12 -#define TXCLKCTRL_CLOCKD0_BITS 0x00000300 -#define TXCLKCTRL_CLOCKD0_S 8 -#define TXCLKCTRL_CLOCKA1_BITS 0x00000030 -#define TXCLKCTRL_CLOCKA1_S 4 -#define TXCLKCTRL_CLOCKA0_BITS 0x00000003 -#define TXCLKCTRL_CLOCKA0_S 0 - -/* - * Individual settings for each field are common - */ -#define TXCLKCTRL_CLOCKxx_OFF 0 -#define TXCLKCTRL_CLOCKxx_DEFON 1 -#define TXCLKCTRL_CLOCKxx_AUTO 2 - -#endif /* METAC_2_1 */ - -#ifdef METAC_2_1 -/* - * Fast interrupt new bits - * ------------------------------------ - */ -#define TXSTATUS_IPTOGGLE_BIT 0x80000000 /* Prev PToggle of TXPRIVEXT */ -#define TXSTATUS_ISTATE_BIT 0x40000000 /* IState bit */ -#define TXSTATUS_IWAIT_BIT 0x20000000 /* wait indefinitely in decision step*/ -#define TXSTATUS_IEXCEPT_BIT 0x10000000 /* Indicate an exception occurred */ -#define TXSTATUS_IRPCOUNT_BITS 0x0E000000 /* Number of 'dirty' date entries*/ -#define TXSTATUS_IRPCOUNT_S 25 -#define TXSTATUS_IRQSTAT_BITS 0x0000F000 /* IRQEnc bits, trigger or interrupts */ -#define TXSTATUS_IRQSTAT_S 12 -#define TXSTATUS_LNKSETOK_BIT 0x00000020 /* LNKSetOK bit, successful LNKSET */ - -/* New fields in TXDE for fast interrupt system */ -#define TXDIVTIME_IACTIVE_BIT 0x00008000 /* Enable new interrupt system */ -#define TXDIVTIME_INONEST_BIT 0x00004000 /* Gate nested interrupt */ -#define TXDIVTIME_IREGIDXGATE_BIT 0x00002000 /* gate of the IRegIdex field */ -#define TXDIVTIME_IREGIDX_BITS 0x00001E00 /* Index of A0.0/1 replaces */ -#define TXDIVTIME_IREGIDX_S 9 -#define TXDIVTIME_NOST_BIT 0x00000100 /* disable superthreading bit */ -#endif - -#endif /* _ASM_METAG_REGS_H_ */ diff --git a/arch/metag/include/asm/mman.h b/arch/metag/include/asm/mman.h deleted file mode 100644 index dcb0d20a64fd..000000000000 --- a/arch/metag/include/asm/mman.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __METAG_MMAN_H__ -#define __METAG_MMAN_H__ - -#include <uapi/asm/mman.h> - -#ifndef __ASSEMBLY__ -#define arch_mmap_check metag_mmap_check -int metag_mmap_check(unsigned long addr, unsigned long len, - unsigned long flags); -#endif -#endif /* __METAG_MMAN_H__ */ diff --git a/arch/metag/include/asm/mmu.h b/arch/metag/include/asm/mmu.h deleted file mode 100644 index cab5a01c3dcb..000000000000 --- a/arch/metag/include/asm/mmu.h +++ /dev/null @@ -1,78 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __MMU_H -#define __MMU_H - -#ifdef CONFIG_METAG_USER_TCM -#include <linux/list.h> -#endif - -#ifdef CONFIG_HUGETLB_PAGE -#include <asm/page.h> -#endif - -typedef struct { - /* Software pgd base pointer used for Meta 1.x MMU. */ - unsigned long pgd_base; -#ifdef CONFIG_METAG_USER_TCM - struct list_head tcm; -#endif -#ifdef CONFIG_HUGETLB_PAGE -#if HPAGE_SHIFT < HUGEPT_SHIFT - /* last partially filled huge page table address */ - unsigned long part_huge; -#endif -#endif -} mm_context_t; - -/* Given a virtual address, return the pte for the top level 4meg entry - * that maps that address. - * Returns 0 (an empty pte) if that range is not mapped. - */ -unsigned long mmu_read_first_level_page(unsigned long vaddr); - -/* Given a linear (virtual) address, return the second level 4k pte - * that maps that address. Returns 0 if the address is not mapped. - */ -unsigned long mmu_read_second_level_page(unsigned long vaddr); - -/* Get the virtual base address of the MMU */ -unsigned long mmu_get_base(void); - -/* Initialize the MMU. */ -void mmu_init(unsigned long mem_end); - -#ifdef CONFIG_METAG_META21_MMU -/* - * For cpu "cpu" calculate and return the address of the - * MMCU_TnLOCAL_TABLE_PHYS0 if running in local-space or - * MMCU_TnGLOBAL_TABLE_PHYS0 if running in global-space. - */ -static inline unsigned long mmu_phys0_addr(unsigned int cpu) -{ - unsigned long phys0; - - phys0 = (MMCU_T0LOCAL_TABLE_PHYS0 + - (MMCU_TnX_TABLE_PHYSX_STRIDE * cpu)) + - (MMCU_TXG_TABLE_PHYSX_OFFSET * is_global_space(PAGE_OFFSET)); - - return phys0; -} - -/* - * For cpu "cpu" calculate and return the address of the - * MMCU_TnLOCAL_TABLE_PHYS1 if running in local-space or - * MMCU_TnGLOBAL_TABLE_PHYS1 if running in global-space. - */ -static inline unsigned long mmu_phys1_addr(unsigned int cpu) -{ - unsigned long phys1; - - phys1 = (MMCU_T0LOCAL_TABLE_PHYS1 + - (MMCU_TnX_TABLE_PHYSX_STRIDE * cpu)) + - (MMCU_TXG_TABLE_PHYSX_OFFSET * is_global_space(PAGE_OFFSET)); - - return phys1; -} -#endif /* CONFIG_METAG_META21_MMU */ - -#endif diff --git a/arch/metag/include/asm/mmu_context.h b/arch/metag/include/asm/mmu_context.h deleted file mode 100644 index 7b4766379622..000000000000 --- a/arch/metag/include/asm/mmu_context.h +++ /dev/null @@ -1,115 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __METAG_MMU_CONTEXT_H -#define __METAG_MMU_CONTEXT_H - -#include <asm-generic/mm_hooks.h> - -#include <asm/page.h> -#include <asm/mmu.h> -#include <asm/tlbflush.h> -#include <asm/cacheflush.h> - -#include <linux/io.h> -#include <linux/mm_types.h> - -static inline void enter_lazy_tlb(struct mm_struct *mm, - struct task_struct *tsk) -{ -} - -static inline int init_new_context(struct task_struct *tsk, - struct mm_struct *mm) -{ -#ifndef CONFIG_METAG_META21_MMU - /* We use context to store a pointer to the page holding the - * pgd of a process while it is running. While a process is not - * running the pgd and context fields should be equal. - */ - mm->context.pgd_base = (unsigned long) mm->pgd; -#endif -#ifdef CONFIG_METAG_USER_TCM - INIT_LIST_HEAD(&mm->context.tcm); -#endif - return 0; -} - -#ifdef CONFIG_METAG_USER_TCM - -#include <linux/slab.h> -#include <asm/tcm.h> - -static inline void destroy_context(struct mm_struct *mm) -{ - struct tcm_allocation *pos, *n; - - list_for_each_entry_safe(pos, n, &mm->context.tcm, list) { - tcm_free(pos->tag, pos->addr, pos->size); - list_del(&pos->list); - kfree(pos); - } -} -#else -#define destroy_context(mm) do { } while (0) -#endif - -#ifdef CONFIG_METAG_META21_MMU -static inline void load_pgd(pgd_t *pgd, int thread) -{ - unsigned long phys0 = mmu_phys0_addr(thread); - unsigned long phys1 = mmu_phys1_addr(thread); - - /* - * 0x900 2Gb address space - * The permission bits apply to MMU table region which gives a 2MB - * window into physical memory. We especially don't want userland to be - * able to access this. - */ - metag_out32(0x900 | _PAGE_CACHEABLE | _PAGE_PRIV | _PAGE_WRITE | - _PAGE_PRESENT, phys0); - /* Set new MMU base address */ - metag_out32(__pa(pgd) & MMCU_TBLPHYS1_ADDR_BITS, phys1); -} -#endif - -static inline void switch_mmu(struct mm_struct *prev, struct mm_struct *next) -{ -#ifdef CONFIG_METAG_META21_MMU - load_pgd(next->pgd, hard_processor_id()); -#else - unsigned int i; - - /* prev->context == prev->pgd in the case where we are initially - switching from the init task to the first process. */ - if (prev->context.pgd_base != (unsigned long) prev->pgd) { - for (i = FIRST_USER_PGD_NR; i < USER_PTRS_PER_PGD; i++) - ((pgd_t *) prev->context.pgd_base)[i] = prev->pgd[i]; - } else - prev->pgd = (pgd_t *)mmu_get_base(); - - next->pgd = prev->pgd; - prev->pgd = (pgd_t *) prev->context.pgd_base; - - for (i = FIRST_USER_PGD_NR; i < USER_PTRS_PER_PGD; i++) - next->pgd[i] = ((pgd_t *) next->context.pgd_base)[i]; - - flush_cache_all(); -#endif - flush_tlb_all(); -} - -static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, - struct task_struct *tsk) -{ - if (prev != next) - switch_mmu(prev, next); -} - -static inline void activate_mm(struct mm_struct *prev_mm, - struct mm_struct *next_mm) -{ - switch_mmu(prev_mm, next_mm); -} - -#define deactivate_mm(tsk, mm) do { } while (0) - -#endif diff --git a/arch/metag/include/asm/mmzone.h b/arch/metag/include/asm/mmzone.h deleted file mode 100644 index 8627fb532206..000000000000 --- a/arch/metag/include/asm/mmzone.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_MMZONE_H -#define __ASM_METAG_MMZONE_H - -#ifdef CONFIG_NEED_MULTIPLE_NODES -#include <linux/numa.h> - -extern struct pglist_data *node_data[]; -#define NODE_DATA(nid) (node_data[nid]) - -static inline int pfn_to_nid(unsigned long pfn) -{ - int nid; - - for (nid = 0; nid < MAX_NUMNODES; nid++) - if (pfn >= node_start_pfn(nid) && pfn <= node_end_pfn(nid)) - break; - - return nid; -} - -static inline struct pglist_data *pfn_to_pgdat(unsigned long pfn) -{ - return NODE_DATA(pfn_to_nid(pfn)); -} - -/* arch/metag/mm/numa.c */ -void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end); -#else -static inline void -setup_bootmem_node(int nid, unsigned long start, unsigned long end) -{ -} -#endif /* CONFIG_NEED_MULTIPLE_NODES */ - -#ifdef CONFIG_NUMA -/* SoC specific mem init */ -void __init soc_mem_setup(void); -#else -static inline void __init soc_mem_setup(void) {}; -#endif - -#endif /* __ASM_METAG_MMZONE_H */ diff --git a/arch/metag/include/asm/module.h b/arch/metag/include/asm/module.h deleted file mode 100644 index e957171c320b..000000000000 --- a/arch/metag/include/asm/module.h +++ /dev/null @@ -1,38 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_MODULE_H -#define _ASM_METAG_MODULE_H - -#include <asm-generic/module.h> - -struct metag_plt_entry { - /* Indirect jump instruction sequence. */ - unsigned long tramp[2]; -}; - -struct mod_arch_specific { - /* Indices of PLT sections within module. */ - unsigned int core_plt_section, init_plt_section; -}; - -#if defined CONFIG_METAG_META12 -#define MODULE_PROC_FAMILY "META 1.2 " -#elif defined CONFIG_METAG_META21 -#define MODULE_PROC_FAMILY "META 2.1 " -#else -#define MODULE_PROC_FAMILY "" -#endif - -#ifdef CONFIG_4KSTACKS -#define MODULE_STACKSIZE "4KSTACKS " -#else -#define MODULE_STACKSIZE "" -#endif - -#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE - -#ifdef MODULE -asm(".section .plt,\"ax\",@progbits; .balign 8; .previous"); -asm(".section .init.plt,\"ax\",@progbits; .balign 8; .previous"); -#endif - -#endif /* _ASM_METAG_MODULE_H */ diff --git a/arch/metag/include/asm/page.h b/arch/metag/include/asm/page.h deleted file mode 100644 index 9e994d77069d..000000000000 --- a/arch/metag/include/asm/page.h +++ /dev/null @@ -1,129 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _METAG_PAGE_H -#define _METAG_PAGE_H - -#include <linux/const.h> - -#include <asm/metag_mem.h> - -/* PAGE_SHIFT determines the page size */ -#if defined(CONFIG_PAGE_SIZE_4K) -#define PAGE_SHIFT 12 -#elif defined(CONFIG_PAGE_SIZE_8K) -#define PAGE_SHIFT 13 -#elif defined(CONFIG_PAGE_SIZE_16K) -#define PAGE_SHIFT 14 -#endif - -#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) - -#if defined(CONFIG_HUGETLB_PAGE_SIZE_8K) -# define HPAGE_SHIFT 13 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_16K) -# define HPAGE_SHIFT 14 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_32K) -# define HPAGE_SHIFT 15 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) -# define HPAGE_SHIFT 16 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_128K) -# define HPAGE_SHIFT 17 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K) -# define HPAGE_SHIFT 18 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) -# define HPAGE_SHIFT 19 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1M) -# define HPAGE_SHIFT 20 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_2M) -# define HPAGE_SHIFT 21 -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_4M) -# define HPAGE_SHIFT 22 -#endif - -#ifdef CONFIG_HUGETLB_PAGE -# define HPAGE_SIZE (1UL << HPAGE_SHIFT) -# define HPAGE_MASK (~(HPAGE_SIZE-1)) -# define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT) -/* - * We define our own hugetlb_get_unmapped_area so we don't corrupt 2nd level - * page tables with normal pages in them. - */ -# define HUGEPT_SHIFT (22) -# define HUGEPT_ALIGN (1 << HUGEPT_SHIFT) -# define HUGEPT_MASK (HUGEPT_ALIGN - 1) -# define ALIGN_HUGEPT(x) ALIGN(x, HUGEPT_ALIGN) -# define HAVE_ARCH_HUGETLB_UNMAPPED_AREA -#endif - -#ifndef __ASSEMBLY__ - -/* On the Meta, we would like to know if the address (heap) we have is - * in local or global space. - */ -#define is_global_space(addr) ((addr) > 0x7fffffff) -#define is_local_space(addr) (!is_global_space(addr)) - -extern void clear_page(void *to); -extern void copy_page(void *to, void *from); - -#define clear_user_page(page, vaddr, pg) clear_page(page) -#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) - -/* - * These are used to make use of C type-checking.. - */ -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long pgd; } pgd_t; -typedef struct { unsigned long pgprot; } pgprot_t; -typedef struct page *pgtable_t; - -#define pte_val(x) ((x).pte) -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) - -#define __pte(x) ((pte_t) { (x) }) -#define __pgd(x) ((pgd_t) { (x) }) -#define __pgprot(x) ((pgprot_t) { (x) }) - -/* The kernel must now ALWAYS live at either 0xC0000000 or 0x40000000 - that - * being either global or local space. - */ -#define PAGE_OFFSET (CONFIG_PAGE_OFFSET) - -#if PAGE_OFFSET >= LINGLOBAL_BASE -#define META_MEMORY_BASE LINGLOBAL_BASE -#define META_MEMORY_LIMIT LINGLOBAL_LIMIT -#else -#define META_MEMORY_BASE LINLOCAL_BASE -#define META_MEMORY_LIMIT LINLOCAL_LIMIT -#endif - -/* Offset between physical and virtual mapping of kernel memory. */ -extern unsigned int meta_memoffset; - -#define __pa(x) ((unsigned long)(((unsigned long)(x)) - meta_memoffset)) -#define __va(x) ((void *)((unsigned long)(((unsigned long)(x)) + meta_memoffset))) - -extern unsigned long pfn_base; -#define ARCH_PFN_OFFSET (pfn_base) -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define page_to_virt(page) __va(page_to_pfn(page) << PAGE_SHIFT) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#ifdef CONFIG_FLATMEM -extern unsigned long max_pfn; -extern unsigned long min_low_pfn; -#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_pfn) -#endif - -#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#include <asm-generic/memory_model.h> -#include <asm-generic/getorder.h> - -#endif /* __ASSMEBLY__ */ - -#endif /* _METAG_PAGE_H */ diff --git a/arch/metag/include/asm/perf_event.h b/arch/metag/include/asm/perf_event.h deleted file mode 100644 index 105bbff0149f..000000000000 --- a/arch/metag/include/asm/perf_event.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef __ASM_METAG_PERF_EVENT_H -#define __ASM_METAG_PERF_EVENT_H - -#endif /* __ASM_METAG_PERF_EVENT_H */ diff --git a/arch/metag/include/asm/pgalloc.h b/arch/metag/include/asm/pgalloc.h deleted file mode 100644 index 0b9d95d78b61..000000000000 --- a/arch/metag/include/asm/pgalloc.h +++ /dev/null @@ -1,83 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _METAG_PGALLOC_H -#define _METAG_PGALLOC_H - -#include <linux/threads.h> -#include <linux/mm.h> - -#define pmd_populate_kernel(mm, pmd, pte) \ - set_pmd(pmd, __pmd(_PAGE_TABLE | __pa(pte))) - -#define pmd_populate(mm, pmd, pte) \ - set_pmd(pmd, __pmd(_PAGE_TABLE | page_to_phys(pte))) - -#define pmd_pgtable(pmd) pmd_page(pmd) - -/* - * Allocate and free page tables. - */ -#ifdef CONFIG_METAG_META21_MMU -static inline void pgd_ctor(pgd_t *pgd) -{ - memcpy(pgd + USER_PTRS_PER_PGD, - swapper_pg_dir + USER_PTRS_PER_PGD, - (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t)); -} -#else -#define pgd_ctor(x) do { } while (0) -#endif - -static inline pgd_t *pgd_alloc(struct mm_struct *mm) -{ - pgd_t *pgd = (pgd_t *)get_zeroed_page(GFP_KERNEL); - if (pgd) - pgd_ctor(pgd); - return pgd; -} - -static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) -{ - free_page((unsigned long)pgd); -} - -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, - unsigned long address) -{ - pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO); - return pte; -} - -static inline pgtable_t pte_alloc_one(struct mm_struct *mm, - unsigned long address) -{ - struct page *pte; - pte = alloc_pages(GFP_KERNEL | __GFP_ZERO, 0); - if (!pte) - return NULL; - if (!pgtable_page_ctor(pte)) { - __free_page(pte); - return NULL; - } - return pte; -} - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long)pte); -} - -static inline void pte_free(struct mm_struct *mm, pgtable_t pte) -{ - pgtable_page_dtor(pte); - __free_page(pte); -} - -#define __pte_free_tlb(tlb, pte, addr) \ - do { \ - pgtable_page_dtor(pte); \ - tlb_remove_page((tlb), (pte)); \ - } while (0) - -#define check_pgt_cache() do { } while (0) - -#endif diff --git a/arch/metag/include/asm/pgtable-bits.h b/arch/metag/include/asm/pgtable-bits.h deleted file mode 100644 index 5f6b82282a41..000000000000 --- a/arch/metag/include/asm/pgtable-bits.h +++ /dev/null @@ -1,105 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Meta page table definitions. - */ - -#ifndef _METAG_PGTABLE_BITS_H -#define _METAG_PGTABLE_BITS_H - -#include <asm/metag_mem.h> - -/* - * Definitions for MMU descriptors - * - * These are the hardware bits in the MMCU pte entries. - * Derived from the Meta toolkit headers. - */ -#define _PAGE_PRESENT MMCU_ENTRY_VAL_BIT -#define _PAGE_WRITE MMCU_ENTRY_WR_BIT -#define _PAGE_PRIV MMCU_ENTRY_PRIV_BIT -/* Write combine bit - this can cause writes to occur out of order */ -#define _PAGE_WR_COMBINE MMCU_ENTRY_WRC_BIT -/* Sys coherent bit - this bit is never used by Linux */ -#define _PAGE_SYS_COHERENT MMCU_ENTRY_SYS_BIT -#define _PAGE_ALWAYS_ZERO_1 0x020 -#define _PAGE_CACHE_CTRL0 0x040 -#define _PAGE_CACHE_CTRL1 0x080 -#define _PAGE_ALWAYS_ZERO_2 0x100 -#define _PAGE_ALWAYS_ZERO_3 0x200 -#define _PAGE_ALWAYS_ZERO_4 0x400 -#define _PAGE_ALWAYS_ZERO_5 0x800 - -/* These are software bits that we stuff into the gaps in the hardware - * pte entries that are not used. Note, these DO get stored in the actual - * hardware, but the hardware just does not use them. - */ -#define _PAGE_ACCESSED _PAGE_ALWAYS_ZERO_1 -#define _PAGE_DIRTY _PAGE_ALWAYS_ZERO_2 - -/* Pages owned, and protected by, the kernel. */ -#define _PAGE_KERNEL _PAGE_PRIV - -/* No cacheing of this page */ -#define _PAGE_CACHE_WIN0 (MMCU_CWIN_UNCACHED << MMCU_ENTRY_CWIN_S) -/* burst cacheing - good for data streaming */ -#define _PAGE_CACHE_WIN1 (MMCU_CWIN_BURST << MMCU_ENTRY_CWIN_S) -/* One cache way per thread */ -#define _PAGE_CACHE_WIN2 (MMCU_CWIN_C1SET << MMCU_ENTRY_CWIN_S) -/* Full on cacheing */ -#define _PAGE_CACHE_WIN3 (MMCU_CWIN_CACHED << MMCU_ENTRY_CWIN_S) - -#define _PAGE_CACHEABLE (_PAGE_CACHE_WIN3 | _PAGE_WR_COMBINE) - -/* which bits are used for cache control ... */ -#define _PAGE_CACHE_MASK (_PAGE_CACHE_CTRL0 | _PAGE_CACHE_CTRL1 | \ - _PAGE_WR_COMBINE) - -/* This is a mask of the bits that pte_modify is allowed to change. */ -#define _PAGE_CHG_MASK (PAGE_MASK) - -#define _PAGE_SZ_SHIFT 1 -#define _PAGE_SZ_4K (0x0) -#define _PAGE_SZ_8K (0x1 << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_16K (0x2 << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_32K (0x3 << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_64K (0x4 << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_128K (0x5 << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_256K (0x6 << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_512K (0x7 << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_1M (0x8 << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_2M (0x9 << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_4M (0xa << _PAGE_SZ_SHIFT) -#define _PAGE_SZ_MASK (0xf << _PAGE_SZ_SHIFT) - -#if defined(CONFIG_PAGE_SIZE_4K) -#define _PAGE_SZ (_PAGE_SZ_4K) -#elif defined(CONFIG_PAGE_SIZE_8K) -#define _PAGE_SZ (_PAGE_SZ_8K) -#elif defined(CONFIG_PAGE_SIZE_16K) -#define _PAGE_SZ (_PAGE_SZ_16K) -#endif -#define _PAGE_TABLE (_PAGE_SZ | _PAGE_PRESENT) - -#if defined(CONFIG_HUGETLB_PAGE_SIZE_8K) -# define _PAGE_SZHUGE (_PAGE_SZ_8K) -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_16K) -# define _PAGE_SZHUGE (_PAGE_SZ_16K) -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_32K) -# define _PAGE_SZHUGE (_PAGE_SZ_32K) -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) -# define _PAGE_SZHUGE (_PAGE_SZ_64K) -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_128K) -# define _PAGE_SZHUGE (_PAGE_SZ_128K) -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K) -# define _PAGE_SZHUGE (_PAGE_SZ_256K) -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) -# define _PAGE_SZHUGE (_PAGE_SZ_512K) -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1M) -# define _PAGE_SZHUGE (_PAGE_SZ_1M) -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_2M) -# define _PAGE_SZHUGE (_PAGE_SZ_2M) -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_4M) -# define _PAGE_SZHUGE (_PAGE_SZ_4M) -#endif - -#endif /* _METAG_PGTABLE_BITS_H */ diff --git a/arch/metag/include/asm/pgtable.h b/arch/metag/include/asm/pgtable.h deleted file mode 100644 index a3422f06c03b..000000000000 --- a/arch/metag/include/asm/pgtable.h +++ /dev/null @@ -1,270 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Macros and functions to manipulate Meta page tables. - */ - -#ifndef _METAG_PGTABLE_H -#define _METAG_PGTABLE_H - -#include <asm/pgtable-bits.h> -#define __ARCH_USE_5LEVEL_HACK -#include <asm-generic/pgtable-nopmd.h> - -/* Invalid regions on Meta: 0x00000000-0x001FFFFF and 0xFFFF0000-0xFFFFFFFF */ -#if PAGE_OFFSET >= LINGLOBAL_BASE -#define CONSISTENT_START 0xF7000000 -#define CONSISTENT_END 0xF73FFFFF -#define VMALLOC_START 0xF8000000 -#define VMALLOC_END 0xFFFEFFFF -#else -#define CONSISTENT_START 0x77000000 -#define CONSISTENT_END 0x773FFFFF -#define VMALLOC_START 0x78000000 -#define VMALLOC_END 0x7FFFFFFF -#endif - -/* - * The Linux memory management assumes a three-level page table setup. On - * Meta, we use that, but "fold" the mid level into the top-level page - * table. - */ - -/* PGDIR_SHIFT determines the size of the area a second-level page table can - * map. This is always 4MB. - */ - -#define PGDIR_SHIFT 22 -#define PGDIR_SIZE (1UL << PGDIR_SHIFT) -#define PGDIR_MASK (~(PGDIR_SIZE-1)) - -/* - * Entries per page directory level: we use a two-level, so - * we don't really have any PMD directory physically. First level tables - * always map 2Gb (local or global) at a granularity of 4MB, second-level - * tables map 4MB with a granularity between 4MB and 4kB (between 1 and - * 1024 entries). - */ -#define PTRS_PER_PTE (PGDIR_SIZE/PAGE_SIZE) -#define HPTRS_PER_PTE (PGDIR_SIZE/HPAGE_SIZE) -#define PTRS_PER_PGD 512 - -#define USER_PTRS_PER_PGD 256 -#define FIRST_USER_ADDRESS META_MEMORY_BASE -#define FIRST_USER_PGD_NR pgd_index(FIRST_USER_ADDRESS) - -#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \ - _PAGE_CACHEABLE) - -#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_WRITE | \ - _PAGE_ACCESSED | _PAGE_CACHEABLE) -#define PAGE_SHARED_C PAGE_SHARED -#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \ - _PAGE_CACHEABLE) -#define PAGE_COPY_C PAGE_COPY - -#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | \ - _PAGE_CACHEABLE) -#define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_DIRTY | \ - _PAGE_ACCESSED | _PAGE_WRITE | \ - _PAGE_CACHEABLE | _PAGE_KERNEL) - -#define __P000 PAGE_NONE -#define __P001 PAGE_READONLY -#define __P010 PAGE_COPY -#define __P011 PAGE_COPY -#define __P100 PAGE_READONLY -#define __P101 PAGE_READONLY -#define __P110 PAGE_COPY_C -#define __P111 PAGE_COPY_C - -#define __S000 PAGE_NONE -#define __S001 PAGE_READONLY -#define __S010 PAGE_SHARED -#define __S011 PAGE_SHARED -#define __S100 PAGE_READONLY -#define __S101 PAGE_READONLY -#define __S110 PAGE_SHARED_C -#define __S111 PAGE_SHARED_C - -#ifndef __ASSEMBLY__ - -#include <asm/page.h> - -/* zero page used for uninitialized stuff */ -extern unsigned long empty_zero_page; -#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) - -/* Certain architectures need to do special things when pte's - * within a page table are directly modified. Thus, the following - * hook is made available. - */ -#define set_pte(pteptr, pteval) ((*(pteptr)) = (pteval)) -#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval) - -#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) - -#define pte_pfn(pte) (pte_val(pte) >> PAGE_SHIFT) - -#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) - -#define pte_none(x) (!pte_val(x)) -#define pte_present(x) (pte_val(x) & _PAGE_PRESENT) -#define pte_clear(mm, addr, xp) do { pte_val(*(xp)) = 0; } while (0) - -#define pmd_none(x) (!pmd_val(x)) -#define pmd_bad(x) ((pmd_val(x) & ~(PAGE_MASK | _PAGE_SZ_MASK)) \ - != (_PAGE_TABLE & ~_PAGE_SZ_MASK)) -#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) -#define pmd_clear(xp) do { pmd_val(*(xp)) = 0; } while (0) - -#define pte_page(x) pfn_to_page(pte_pfn(x)) - -/* - * The following only work if pte_present() is true. - * Undefined behaviour if not.. - */ - -static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_WRITE; } -static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } -static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } -static inline int pte_special(pte_t pte) { return 0; } - -static inline pte_t pte_wrprotect(pte_t pte) { pte_val(pte) &= (~_PAGE_WRITE); return pte; } -static inline pte_t pte_mkclean(pte_t pte) { pte_val(pte) &= ~_PAGE_DIRTY; return pte; } -static inline pte_t pte_mkold(pte_t pte) { pte_val(pte) &= ~_PAGE_ACCESSED; return pte; } -static inline pte_t pte_mkwrite(pte_t pte) { pte_val(pte) |= _PAGE_WRITE; return pte; } -static inline pte_t pte_mkdirty(pte_t pte) { pte_val(pte) |= _PAGE_DIRTY; return pte; } -static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= _PAGE_ACCESSED; return pte; } -static inline pte_t pte_mkspecial(pte_t pte) { return pte; } -static inline pte_t pte_mkhuge(pte_t pte) { return pte; } - -/* - * Macro and implementation to make a page protection as uncacheable. - */ -#define pgprot_writecombine(prot) \ - __pgprot(pgprot_val(prot) & ~(_PAGE_CACHE_CTRL1 | _PAGE_CACHE_CTRL0)) - -#define pgprot_noncached(prot) \ - __pgprot(pgprot_val(prot) & ~_PAGE_CACHEABLE) - - -/* - * Conversion functions: convert a page and protection to a page entry, - * and a page entry and page directory to the page they refer to. - */ - -#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) - -static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) -{ - pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); - return pte; -} - -static inline unsigned long pmd_page_vaddr(pmd_t pmd) -{ - unsigned long paddr = pmd_val(pmd) & PAGE_MASK; - if (!paddr) - return 0; - return (unsigned long)__va(paddr); -} - -#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)) -#define pmd_page_shift(pmd) (12 + ((pmd_val(pmd) & _PAGE_SZ_MASK) \ - >> _PAGE_SZ_SHIFT)) -#define pmd_num_ptrs(pmd) (PGDIR_SIZE >> pmd_page_shift(pmd)) - -/* - * Each pgd is only 2k, mapping 2Gb (local or global). If we're in global - * space drop the top bit before indexing the pgd. - */ -#if PAGE_OFFSET >= LINGLOBAL_BASE -#define pgd_index(address) ((((address) & ~0x80000000) >> PGDIR_SHIFT) \ - & (PTRS_PER_PGD-1)) -#else -#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) -#endif - -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) - -#define pgd_offset_k(address) pgd_offset(&init_mm, address) - -#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1)) - -/* Find an entry in the second-level page table.. */ -#if !defined(CONFIG_HUGETLB_PAGE) - /* all pages are of size (1 << PAGE_SHIFT), so no need to read 1st level pt */ -# define pte_index(pmd, address) \ - (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) -#else - /* some pages are huge, so read 1st level pt to find out */ -# define pte_index(pmd, address) \ - (((address) >> pmd_page_shift(pmd)) & (pmd_num_ptrs(pmd) - 1)) -#endif -#define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(*(dir), address)) -#define pte_offset_map(dir, address) pte_offset_kernel(dir, address) -#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address) - -#define pte_unmap(pte) do { } while (0) -#define pte_unmap_nested(pte) do { } while (0) - -#define pte_ERROR(e) \ - pr_err("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) -#define pgd_ERROR(e) \ - pr_err("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) - -/* - * Meta doesn't have any external MMU info: the kernel page - * tables contain all the necessary information. - */ -static inline void update_mmu_cache(struct vm_area_struct *vma, - unsigned long address, pte_t *pte) -{ -} - -/* - * Encode and decode a swap entry (must be !pte_none(e) && !pte_present(e)) - * Since PAGE_PRESENT is bit 1, we can use the bits above that. - */ -#define __swp_type(x) (((x).val >> 1) & 0xff) -#define __swp_offset(x) ((x).val >> 10) -#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 1) | \ - ((offset) << 10) }) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) - -#define kern_addr_valid(addr) (1) - -/* - * No page table caches to initialise - */ -#define pgtable_cache_init() do { } while (0) - -extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -void paging_init(unsigned long mem_end); - -#ifdef CONFIG_METAG_META12 -/* This is a workaround for an issue in Meta 1 cores. These cores cache - * invalid entries in the TLB so we always need to flush whenever we add - * a new pte. Unfortunately we can only flush the whole TLB not shoot down - * single entries so this is sub-optimal. This implementation ensures that - * we will get a flush at the second attempt, so we may still get repeated - * faults, we just don't overflow the kernel stack handling them. - */ -#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS -#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \ -({ \ - int __changed = !pte_same(*(__ptep), __entry); \ - if (__changed) { \ - set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \ - } \ - flush_tlb_page(__vma, __address); \ - __changed; \ -}) -#endif - -#include <asm-generic/pgtable.h> - -#endif /* __ASSEMBLY__ */ -#endif /* _METAG_PGTABLE_H */ diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h deleted file mode 100644 index 9a0c502cd4a0..000000000000 --- a/arch/metag/include/asm/processor.h +++ /dev/null @@ -1,201 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C) 2005,2006,2007,2008 Imagination Technologies - */ - -#ifndef __ASM_METAG_PROCESSOR_H -#define __ASM_METAG_PROCESSOR_H - -#include <linux/atomic.h> - -#include <asm/page.h> -#include <asm/ptrace.h> -#include <asm/metag_regs.h> - -/* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({ __label__ _l; _l: &&_l; }) - -/* The task stops where the kernel starts */ -#define TASK_SIZE PAGE_OFFSET -/* Add an extra page of padding at the top of the stack for the guard page. */ -#define STACK_TOP (TASK_SIZE - PAGE_SIZE) -#define STACK_TOP_MAX STACK_TOP -/* Maximum virtual space for stack */ -#define STACK_SIZE_MAX (CONFIG_MAX_STACK_SIZE_MB*1024*1024) - -/* This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ -#define TASK_UNMAPPED_BASE META_MEMORY_BASE - -typedef struct { - unsigned long seg; -} mm_segment_t; - -#ifdef CONFIG_METAG_FPU -struct meta_fpu_context { - TBICTXEXTFPU fpstate; - union { - struct { - TBICTXEXTBB4 fx8_15; - TBICTXEXTFPACC fpacc; - } fx8_15; - struct { - TBICTXEXTFPACC fpacc; - TBICTXEXTBB4 unused; - } nofx8_15; - } extfpstate; - bool needs_restore; -}; -#else -struct meta_fpu_context {}; -#endif - -#ifdef CONFIG_METAG_DSP -struct meta_ext_context { - struct { - TBIEXTCTX ctx; - TBICTXEXTBB8 bb8; - TBIDUAL ax[TBICTXEXTAXX_BYTES / sizeof(TBIDUAL)]; - TBICTXEXTHL2 hl2; - TBICTXEXTTDPR ext; - TBICTXEXTRP6 rp; - } regs; - - /* DSPRAM A and B save areas. */ - void *ram[2]; - - /* ECH encoded size of DSPRAM save areas. */ - unsigned int ram_sz[2]; -}; -#else -struct meta_ext_context {}; -#endif - -struct thread_struct { - PTBICTX kernel_context; - /* A copy of the user process Sig.SaveMask. */ - unsigned int user_flags; - struct meta_fpu_context *fpu_context; - void __user *tls_ptr; - unsigned short int_depth; - unsigned short txdefr_failure; - struct meta_ext_context *dsp_context; -}; - -#define INIT_THREAD { \ - NULL, /* kernel_context */ \ - 0, /* user_flags */ \ - NULL, /* fpu_context */ \ - NULL, /* tls_ptr */ \ - 1, /* int_depth - we start in kernel */ \ - 0, /* txdefr_failure */ \ - NULL, /* dsp_context */ \ -} - -/* Needed to make #define as we are referencing 'current', that is not visible - * yet. - * - * Stack layout is as below. - - argc argument counter (integer) - argv[0] program name (pointer) - argv[1...N] program args (pointers) - argv[argc-1] end of args (integer) - NULL - env[0...N] environment variables (pointers) - NULL - - */ -#define start_thread(regs, pc, usp) do { \ - unsigned int *argc = (unsigned int *) bprm->exec; \ - current->thread.int_depth = 1; \ - /* Force this process down to user land */ \ - regs->ctx.SaveMask = TBICTX_PRIV_BIT; \ - regs->ctx.CurrPC = pc; \ - regs->ctx.AX[0].U0 = usp; \ - regs->ctx.DX[3].U1 = *((int *)argc); /* argc */ \ - regs->ctx.DX[3].U0 = (int)((int *)argc + 1); /* argv */ \ - regs->ctx.DX[2].U1 = (int)((int *)argc + \ - regs->ctx.DX[3].U1 + 2); /* envp */ \ - regs->ctx.DX[2].U0 = 0; /* rtld_fini */ \ -} while (0) - -/* Forward declaration, a strange C thing */ -struct task_struct; - -/* Free all resources held by a thread. */ -static inline void release_thread(struct task_struct *dead_task) -{ -} - -/* - * Return saved PC of a blocked thread. - */ -#define thread_saved_pc(tsk) \ - ((unsigned long)(tsk)->thread.kernel_context->CurrPC) -#define thread_saved_sp(tsk) \ - ((unsigned long)(tsk)->thread.kernel_context->AX[0].U0) -#define thread_saved_fp(tsk) \ - ((unsigned long)(tsk)->thread.kernel_context->AX[1].U0) - -unsigned long get_wchan(struct task_struct *p); - -#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ctx.CurrPC) -#define KSTK_ESP(tsk) (task_pt_regs(tsk)->ctx.AX[0].U0) - -#define user_stack_pointer(regs) ((regs)->ctx.AX[0].U0) - -#define cpu_relax() barrier() - -extern void setup_priv(void); - -static inline unsigned int hard_processor_id(void) -{ - unsigned int id; - - asm volatile ("MOV %0, TXENABLE\n" - "AND %0, %0, %1\n" - "LSR %0, %0, %2\n" - : "=&d" (id) - : "I" (TXENABLE_THREAD_BITS), - "K" (TXENABLE_THREAD_S) - ); - - return id; -} - -#define OP3_EXIT 0 - -#define HALT_OK 0 -#define HALT_PANIC -1 - -/* - * Halt (stop) the hardware thread. This instruction sequence is the - * standard way to cause a Meta hardware thread to exit. The exit code - * is pushed onto the stack which is interpreted by the debug adapter. - */ -static inline void hard_processor_halt(int exit_code) -{ - asm volatile ("MOV D1Ar1, %0\n" - "MOV D0Ar6, %1\n" - "MSETL [A0StP],D0Ar6,D0Ar4,D0Ar2\n" - "1:\n" - "SWITCH #0xC30006\n" - "B 1b\n" - : : "r" (exit_code), "K" (OP3_EXIT)); -} - -/* Set these hooks to call SoC specific code to restart/halt/power off. */ -extern void (*soc_restart)(char *cmd); -extern void (*soc_halt)(void); - -extern void show_trace(struct task_struct *tsk, unsigned long *sp, - struct pt_regs *regs); - -extern const struct seq_operations cpuinfo_op; - -#endif diff --git a/arch/metag/include/asm/ptrace.h b/arch/metag/include/asm/ptrace.h deleted file mode 100644 index 9074f254c9ca..000000000000 --- a/arch/metag/include/asm/ptrace.h +++ /dev/null @@ -1,61 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _METAG_PTRACE_H -#define _METAG_PTRACE_H - -#include <linux/compiler.h> -#include <uapi/asm/ptrace.h> -#include <asm/tbx.h> - -#ifndef __ASSEMBLY__ - -/* this struct defines the way the registers are stored on the - stack during a system call. */ - -struct pt_regs { - TBICTX ctx; - TBICTXEXTCB0 extcb0[5]; -}; - -#define user_mode(regs) (((regs)->ctx.SaveMask & TBICTX_PRIV_BIT) > 0) - -#define instruction_pointer(regs) ((unsigned long)(regs)->ctx.CurrPC) -#define profile_pc(regs) instruction_pointer(regs) - -#define task_pt_regs(task) \ - ((struct pt_regs *)(task_stack_page(task) + \ - sizeof(struct thread_info))) - -#define current_pt_regs() \ - ((struct pt_regs *)((char *)current_thread_info() + \ - sizeof(struct thread_info))) - -int syscall_trace_enter(struct pt_regs *regs); -void syscall_trace_leave(struct pt_regs *regs); - -/* copy a struct user_gp_regs out to user */ -int metag_gp_regs_copyout(const struct pt_regs *regs, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf); -/* copy a struct user_gp_regs in from user */ -int metag_gp_regs_copyin(struct pt_regs *regs, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf); -/* copy a struct user_cb_regs out to user */ -int metag_cb_regs_copyout(const struct pt_regs *regs, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf); -/* copy a struct user_cb_regs in from user */ -int metag_cb_regs_copyin(struct pt_regs *regs, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf); -/* copy a struct user_rp_state out to user */ -int metag_rp_state_copyout(const struct pt_regs *regs, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf); -/* copy a struct user_rp_state in from user */ -int metag_rp_state_copyin(struct pt_regs *regs, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf); - -#endif /* __ASSEMBLY__ */ -#endif /* _METAG_PTRACE_H */ diff --git a/arch/metag/include/asm/setup.h b/arch/metag/include/asm/setup.h deleted file mode 100644 index 504621d79ef5..000000000000 --- a/arch/metag/include/asm/setup.h +++ /dev/null @@ -1,10 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_SETUP_H -#define _ASM_METAG_SETUP_H - -#include <uapi/asm/setup.h> - -extern const struct machine_desc *setup_machine_fdt(void *dt); -void per_cpu_trap_init(unsigned long); -extern void __init dump_machine_table(void); -#endif /* _ASM_METAG_SETUP_H */ diff --git a/arch/metag/include/asm/smp.h b/arch/metag/include/asm/smp.h deleted file mode 100644 index 8d3683d83680..000000000000 --- a/arch/metag/include/asm/smp.h +++ /dev/null @@ -1,28 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_SMP_H -#define __ASM_SMP_H - -#include <linux/cpumask.h> - -#define raw_smp_processor_id() (current_thread_info()->cpu) - -enum ipi_msg_type { - IPI_CALL_FUNC, - IPI_RESCHEDULE, -}; - -extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); - -asmlinkage void secondary_start_kernel(void); - -extern void secondary_startup(void); - -#ifdef CONFIG_HOTPLUG_CPU -extern void __cpu_die(unsigned int cpu); -extern int __cpu_disable(void); -extern void cpu_die(void); -#endif - -extern void smp_init_cpus(void); -#endif /* __ASM_SMP_H */ diff --git a/arch/metag/include/asm/sparsemem.h b/arch/metag/include/asm/sparsemem.h deleted file mode 100644 index 2942894bace5..000000000000 --- a/arch/metag/include/asm/sparsemem.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_SPARSEMEM_H -#define __ASM_METAG_SPARSEMEM_H - -/* - * SECTION_SIZE_BITS 2^N: how big each section will be - * MAX_PHYSADDR_BITS 2^N: how much physical address space we have - * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space - */ -#define SECTION_SIZE_BITS 26 -#define MAX_PHYSADDR_BITS 32 -#define MAX_PHYSMEM_BITS 32 - -#endif /* __ASM_METAG_SPARSEMEM_H */ diff --git a/arch/metag/include/asm/spinlock.h b/arch/metag/include/asm/spinlock.h deleted file mode 100644 index 4497c232d9c1..000000000000 --- a/arch/metag/include/asm/spinlock.h +++ /dev/null @@ -1,19 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_SPINLOCK_H -#define __ASM_SPINLOCK_H - -#include <asm/barrier.h> -#include <asm/processor.h> - -#ifdef CONFIG_METAG_ATOMICITY_LOCK1 -#include <asm/spinlock_lock1.h> -#else -#include <asm/spinlock_lnkget.h> -#endif - -/* - * both lock1 and lnkget are test-and-set spinlocks with 0 unlocked and 1 - * locked. - */ - -#endif /* __ASM_SPINLOCK_H */ diff --git a/arch/metag/include/asm/spinlock_lnkget.h b/arch/metag/include/asm/spinlock_lnkget.h deleted file mode 100644 index dfd780eab350..000000000000 --- a/arch/metag/include/asm/spinlock_lnkget.h +++ /dev/null @@ -1,213 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_SPINLOCK_LNKGET_H -#define __ASM_SPINLOCK_LNKGET_H - -/* - * None of these asm statements clobber memory as LNKSET writes around - * the cache so the memory it modifies cannot safely be read by any means - * other than these accessors. - */ - -static inline int arch_spin_is_locked(arch_spinlock_t *lock) -{ - int ret; - - asm volatile ("LNKGETD %0, [%1]\n" - "TST %0, #1\n" - "MOV %0, #1\n" - "XORZ %0, %0, %0\n" - : "=&d" (ret) - : "da" (&lock->lock) - : "cc"); - return ret; -} - -static inline void arch_spin_lock(arch_spinlock_t *lock) -{ - int tmp; - - asm volatile ("1: LNKGETD %0,[%1]\n" - " TST %0, #1\n" - " ADD %0, %0, #1\n" - " LNKSETDZ [%1], %0\n" - " BNZ 1b\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" - : "=&d" (tmp) - : "da" (&lock->lock) - : "cc"); - - smp_mb(); -} - -/* Returns 0 if failed to acquire lock */ -static inline int arch_spin_trylock(arch_spinlock_t *lock) -{ - int tmp; - - asm volatile (" LNKGETD %0,[%1]\n" - " TST %0, #1\n" - " ADD %0, %0, #1\n" - " LNKSETDZ [%1], %0\n" - " BNZ 1f\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " MOV %0, #1\n" - "1: XORNZ %0, %0, %0\n" - : "=&d" (tmp) - : "da" (&lock->lock) - : "cc"); - - smp_mb(); - - return tmp; -} - -static inline void arch_spin_unlock(arch_spinlock_t *lock) -{ - smp_mb(); - - asm volatile (" SETD [%0], %1\n" - : - : "da" (&lock->lock), "da" (0) - : "memory"); -} - -/* - * RWLOCKS - * - * - * Write locks are easy - we just set bit 31. When unlocking, we can - * just write zero since the lock is exclusively held. - */ - -static inline void arch_write_lock(arch_rwlock_t *rw) -{ - int tmp; - - asm volatile ("1: LNKGETD %0,[%1]\n" - " CMP %0, #0\n" - " ADD %0, %0, %2\n" - " LNKSETDZ [%1], %0\n" - " BNZ 1b\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" - : "=&d" (tmp) - : "da" (&rw->lock), "bd" (0x80000000) - : "cc"); - - smp_mb(); -} - -static inline int arch_write_trylock(arch_rwlock_t *rw) -{ - int tmp; - - asm volatile (" LNKGETD %0,[%1]\n" - " CMP %0, #0\n" - " ADD %0, %0, %2\n" - " LNKSETDZ [%1], %0\n" - " BNZ 1f\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " MOV %0,#1\n" - "1: XORNZ %0, %0, %0\n" - : "=&d" (tmp) - : "da" (&rw->lock), "bd" (0x80000000) - : "cc"); - - smp_mb(); - - return tmp; -} - -static inline void arch_write_unlock(arch_rwlock_t *rw) -{ - smp_mb(); - - asm volatile (" SETD [%0], %1\n" - : - : "da" (&rw->lock), "da" (0) - : "memory"); -} - -/* - * Read locks are a bit more hairy: - * - Exclusively load the lock value. - * - Increment it. - * - Store new lock value if positive, and we still own this location. - * If the value is negative, we've already failed. - * - If we failed to store the value, we want a negative result. - * - If we failed, try again. - * Unlocking is similarly hairy. We may have multiple read locks - * currently active. However, we know we won't have any write - * locks. - */ -static inline void arch_read_lock(arch_rwlock_t *rw) -{ - int tmp; - - asm volatile ("1: LNKGETD %0,[%1]\n" - " ADDS %0, %0, #1\n" - " LNKSETDPL [%1], %0\n" - " BMI 1b\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" - : "=&d" (tmp) - : "da" (&rw->lock) - : "cc"); - - smp_mb(); -} - -static inline void arch_read_unlock(arch_rwlock_t *rw) -{ - int tmp; - - smp_mb(); - - asm volatile ("1: LNKGETD %0,[%1]\n" - " SUB %0, %0, #1\n" - " LNKSETD [%1], %0\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " BNZ 1b\n" - : "=&d" (tmp) - : "da" (&rw->lock) - : "cc", "memory"); -} - -static inline int arch_read_trylock(arch_rwlock_t *rw) -{ - int tmp; - - asm volatile (" LNKGETD %0,[%1]\n" - " ADDS %0, %0, #1\n" - " LNKSETDPL [%1], %0\n" - " BMI 1f\n" - " DEFR %0, TXSTAT\n" - " ANDT %0, %0, #HI(0x3f000000)\n" - " CMPT %0, #HI(0x02000000)\n" - " MOV %0,#1\n" - " BZ 2f\n" - "1: MOV %0,#0\n" - "2:\n" - : "=&d" (tmp) - : "da" (&rw->lock) - : "cc"); - - smp_mb(); - - return tmp; -} - -#endif /* __ASM_SPINLOCK_LNKGET_H */ diff --git a/arch/metag/include/asm/spinlock_lock1.h b/arch/metag/include/asm/spinlock_lock1.h deleted file mode 100644 index c0bd81bbe18c..000000000000 --- a/arch/metag/include/asm/spinlock_lock1.h +++ /dev/null @@ -1,165 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_SPINLOCK_LOCK1_H -#define __ASM_SPINLOCK_LOCK1_H - -#include <asm/bug.h> -#include <asm/global_lock.h> - -static inline int arch_spin_is_locked(arch_spinlock_t *lock) -{ - int ret; - - barrier(); - ret = lock->lock; - WARN_ON(ret != 0 && ret != 1); - return ret; -} - -static inline void arch_spin_lock(arch_spinlock_t *lock) -{ - unsigned int we_won = 0; - unsigned long flags; - -again: - __global_lock1(flags); - if (lock->lock == 0) { - fence(); - lock->lock = 1; - we_won = 1; - } - __global_unlock1(flags); - if (we_won == 0) - goto again; - WARN_ON(lock->lock != 1); -} - -/* Returns 0 if failed to acquire lock */ -static inline int arch_spin_trylock(arch_spinlock_t *lock) -{ - unsigned long flags; - unsigned int ret; - - __global_lock1(flags); - ret = lock->lock; - if (ret == 0) { - fence(); - lock->lock = 1; - } - __global_unlock1(flags); - return (ret == 0); -} - -static inline void arch_spin_unlock(arch_spinlock_t *lock) -{ - barrier(); - WARN_ON(!lock->lock); - lock->lock = 0; -} - -/* - * RWLOCKS - * - * - * Write locks are easy - we just set bit 31. When unlocking, we can - * just write zero since the lock is exclusively held. - */ - -static inline void arch_write_lock(arch_rwlock_t *rw) -{ - unsigned long flags; - unsigned int we_won = 0; - -again: - __global_lock1(flags); - if (rw->lock == 0) { - fence(); - rw->lock = 0x80000000; - we_won = 1; - } - __global_unlock1(flags); - if (we_won == 0) - goto again; - WARN_ON(rw->lock != 0x80000000); -} - -static inline int arch_write_trylock(arch_rwlock_t *rw) -{ - unsigned long flags; - unsigned int ret; - - __global_lock1(flags); - ret = rw->lock; - if (ret == 0) { - fence(); - rw->lock = 0x80000000; - } - __global_unlock1(flags); - - return (ret == 0); -} - -static inline void arch_write_unlock(arch_rwlock_t *rw) -{ - barrier(); - WARN_ON(rw->lock != 0x80000000); - rw->lock = 0; -} - -/* - * Read locks are a bit more hairy: - * - Exclusively load the lock value. - * - Increment it. - * - Store new lock value if positive, and we still own this location. - * If the value is negative, we've already failed. - * - If we failed to store the value, we want a negative result. - * - If we failed, try again. - * Unlocking is similarly hairy. We may have multiple read locks - * currently active. However, we know we won't have any write - * locks. - */ -static inline void arch_read_lock(arch_rwlock_t *rw) -{ - unsigned long flags; - unsigned int we_won = 0, ret; - -again: - __global_lock1(flags); - ret = rw->lock; - if (ret < 0x80000000) { - fence(); - rw->lock = ret + 1; - we_won = 1; - } - __global_unlock1(flags); - if (!we_won) - goto again; -} - -static inline void arch_read_unlock(arch_rwlock_t *rw) -{ - unsigned long flags; - unsigned int ret; - - __global_lock1(flags); - fence(); - ret = rw->lock--; - __global_unlock1(flags); - WARN_ON(ret == 0); -} - -static inline int arch_read_trylock(arch_rwlock_t *rw) -{ - unsigned long flags; - unsigned int ret; - - __global_lock1(flags); - ret = rw->lock; - if (ret < 0x80000000) { - fence(); - rw->lock = ret + 1; - } - __global_unlock1(flags); - return (ret < 0x80000000); -} - -#endif /* __ASM_SPINLOCK_LOCK1_H */ diff --git a/arch/metag/include/asm/spinlock_types.h b/arch/metag/include/asm/spinlock_types.h deleted file mode 100644 index cd197f1bed59..000000000000 --- a/arch/metag/include/asm/spinlock_types.h +++ /dev/null @@ -1,21 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_SPINLOCK_TYPES_H -#define _ASM_METAG_SPINLOCK_TYPES_H - -#ifndef __LINUX_SPINLOCK_TYPES_H -# error "please don't include this file directly" -#endif - -typedef struct { - volatile unsigned int lock; -} arch_spinlock_t; - -#define __ARCH_SPIN_LOCK_UNLOCKED { 0 } - -typedef struct { - volatile unsigned int lock; -} arch_rwlock_t; - -#define __ARCH_RW_LOCK_UNLOCKED { 0 } - -#endif /* _ASM_METAG_SPINLOCK_TYPES_H */ diff --git a/arch/metag/include/asm/stacktrace.h b/arch/metag/include/asm/stacktrace.h deleted file mode 100644 index f45e3cb2bbb5..000000000000 --- a/arch/metag/include/asm/stacktrace.h +++ /dev/null @@ -1,21 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_STACKTRACE_H -#define __ASM_STACKTRACE_H - -struct stackframe { - unsigned long fp; - unsigned long sp; - unsigned long lr; - unsigned long pc; -}; - -struct metag_frame { - unsigned long fp; - unsigned long lr; -}; - -extern int unwind_frame(struct stackframe *frame); -extern void walk_stackframe(struct stackframe *frame, - int (*fn)(struct stackframe *, void *), void *data); - -#endif /* __ASM_STACKTRACE_H */ diff --git a/arch/metag/include/asm/string.h b/arch/metag/include/asm/string.h deleted file mode 100644 index 86f9614d5fc6..000000000000 --- a/arch/metag/include/asm/string.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _METAG_STRING_H_ -#define _METAG_STRING_H_ - -#define __HAVE_ARCH_MEMSET -extern void *memset(void *__s, int __c, size_t __count); - -#define __HAVE_ARCH_MEMCPY -void *memcpy(void *__to, __const__ void *__from, size_t __n); - -#define __HAVE_ARCH_MEMMOVE -extern void *memmove(void *__dest, __const__ void *__src, size_t __n); - -#endif /* _METAG_STRING_H_ */ diff --git a/arch/metag/include/asm/switch.h b/arch/metag/include/asm/switch.h deleted file mode 100644 index 1fd6a587c844..000000000000 --- a/arch/metag/include/asm/switch.h +++ /dev/null @@ -1,21 +0,0 @@ -/* - * Copyright (C) 2012 Imagination Technologies Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef _ASM_METAG_SWITCH_H -#define _ASM_METAG_SWITCH_H - -/* metag SWITCH codes */ -#define __METAG_SW_PERM_BREAK 0x400002 /* compiled in breakpoint */ -#define __METAG_SW_SYS_LEGACY 0x440000 /* legacy system calls */ -#define __METAG_SW_SYS 0x440001 /* system calls */ - -/* metag SWITCH instruction encoding */ -#define __METAG_SW_ENCODING(TYPE) (0xaf000000 | (__METAG_SW_##TYPE)) - -#endif /* _ASM_METAG_SWITCH_H */ diff --git a/arch/metag/include/asm/syscall.h b/arch/metag/include/asm/syscall.h deleted file mode 100644 index 24fc97939f77..000000000000 --- a/arch/metag/include/asm/syscall.h +++ /dev/null @@ -1,104 +0,0 @@ -/* - * Access to user system call parameters and results - * - * Copyright (C) 2008 Imagination Technologies Ltd. - * - * This copyrighted material is made available to anyone wishing to use, - * modify, copy, or redistribute it subject to the terms and conditions - * of the GNU General Public License v.2. - * - * See asm-generic/syscall.h for descriptions of what we must do here. - */ - -#ifndef _ASM_METAG_SYSCALL_H -#define _ASM_METAG_SYSCALL_H - -#include <linux/sched.h> -#include <linux/err.h> -#include <linux/uaccess.h> - -#include <asm/switch.h> - -static inline long syscall_get_nr(struct task_struct *task, - struct pt_regs *regs) -{ - unsigned long insn; - - /* - * FIXME there's no way to find out how we got here other than to - * examine the memory at the PC to see if it is a syscall - * SWITCH instruction. - */ - if (get_user(insn, (unsigned long *)(regs->ctx.CurrPC - 4))) - return -1; - - if (insn == __METAG_SW_ENCODING(SYS)) - return regs->ctx.DX[0].U1; - else - return -1L; -} - -static inline void syscall_rollback(struct task_struct *task, - struct pt_regs *regs) -{ - /* do nothing */ -} - -static inline long syscall_get_error(struct task_struct *task, - struct pt_regs *regs) -{ - unsigned long error = regs->ctx.DX[0].U0; - return IS_ERR_VALUE(error) ? error : 0; -} - -static inline long syscall_get_return_value(struct task_struct *task, - struct pt_regs *regs) -{ - return regs->ctx.DX[0].U0; -} - -static inline void syscall_set_return_value(struct task_struct *task, - struct pt_regs *regs, - int error, long val) -{ - regs->ctx.DX[0].U0 = (long) error ?: val; -} - -static inline void syscall_get_arguments(struct task_struct *task, - struct pt_regs *regs, - unsigned int i, unsigned int n, - unsigned long *args) -{ - unsigned int reg, j; - BUG_ON(i + n > 6); - - for (j = i, reg = 6 - i; j < (i + n); j++, reg--) { - if (reg % 2) - args[j] = regs->ctx.DX[(reg + 1) / 2].U0; - else - args[j] = regs->ctx.DX[reg / 2].U1; - } -} - -static inline void syscall_set_arguments(struct task_struct *task, - struct pt_regs *regs, - unsigned int i, unsigned int n, - const unsigned long *args) -{ - unsigned int reg; - BUG_ON(i + n > 6); - - for (reg = 6 - i; i < (i + n); i++, reg--) { - if (reg % 2) - regs->ctx.DX[(reg + 1) / 2].U0 = args[i]; - else - regs->ctx.DX[reg / 2].U1 = args[i]; - } -} - -#define NR_syscalls __NR_syscalls - -/* generic syscall table */ -extern const void *sys_call_table[]; - -#endif /* _ASM_METAG_SYSCALL_H */ diff --git a/arch/metag/include/asm/syscalls.h b/arch/metag/include/asm/syscalls.h deleted file mode 100644 index eac0cf120323..000000000000 --- a/arch/metag/include/asm/syscalls.h +++ /dev/null @@ -1,40 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_SYSCALLS_H -#define _ASM_METAG_SYSCALLS_H - -#include <linux/compiler.h> -#include <linux/linkage.h> -#include <linux/types.h> -#include <linux/signal.h> - -/* kernel/signal.c */ -#define sys_rt_sigreturn sys_rt_sigreturn -asmlinkage long sys_rt_sigreturn(void); - -#include <asm-generic/syscalls.h> - -/* kernel/sys_metag.c */ -asmlinkage int sys_metag_setglobalbit(char __user *, int); -asmlinkage void sys_metag_set_fpu_flags(unsigned int); -asmlinkage int sys_metag_set_tls(void __user *); -asmlinkage void *sys_metag_get_tls(void); - -asmlinkage long sys_truncate64_metag(const char __user *, unsigned long, - unsigned long); -asmlinkage long sys_ftruncate64_metag(unsigned int, unsigned long, - unsigned long); -asmlinkage long sys_fadvise64_64_metag(int, unsigned long, unsigned long, - unsigned long, unsigned long, int); -asmlinkage long sys_readahead_metag(int, unsigned long, unsigned long, size_t); -asmlinkage ssize_t sys_pread64_metag(unsigned long, char __user *, size_t, - unsigned long, unsigned long); -asmlinkage ssize_t sys_pwrite64_metag(unsigned long, char __user *, size_t, - unsigned long, unsigned long); -asmlinkage long sys_sync_file_range_metag(int, unsigned long, unsigned long, - unsigned long, unsigned long, - unsigned int); - -int do_work_pending(struct pt_regs *regs, unsigned int thread_flags, - int syscall); - -#endif /* _ASM_METAG_SYSCALLS_H */ diff --git a/arch/metag/include/asm/tbx.h b/arch/metag/include/asm/tbx.h deleted file mode 100644 index 5cd2a6c86223..000000000000 --- a/arch/metag/include/asm/tbx.h +++ /dev/null @@ -1,1420 +0,0 @@ -/* - * asm/tbx.h - * - * Copyright (C) 2000-2012 Imagination Technologies. - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. - * - * Thread binary interface header - */ - -#ifndef _ASM_METAG_TBX_H_ -#define _ASM_METAG_TBX_H_ - -/* for CACHEW_* values */ -#include <asm/metag_isa.h> -/* for LINSYSEVENT_* addresses */ -#include <asm/metag_mem.h> - -#ifdef TBI_1_4 -#ifndef TBI_MUTEXES_1_4 -#define TBI_MUTEXES_1_4 -#endif -#ifndef TBI_SEMAPHORES_1_4 -#define TBI_SEMAPHORES_1_4 -#endif -#ifndef TBI_ASYNC_SWITCH_1_4 -#define TBI_ASYNC_SWITCH_1_4 -#endif -#ifndef TBI_FASTINT_1_4 -#define TBI_FASTINT_1_4 -#endif -#endif - - -/* Id values in the TBI system describe a segment using an arbitrary - integer value and flags in the bottom 8 bits, the SIGPOLL value is - used in cases where control over blocking or polling behaviour is - needed. */ -#define TBID_SIGPOLL_BIT 0x02 /* Set bit in an Id value to poll vs block */ -/* Extended segment identifiers use strings in the string table */ -#define TBID_IS_SEGSTR( Id ) (((Id) & (TBID_SEGTYPE_BITS>>1)) == 0) - -/* Segment identifiers contain the following related bit-fields */ -#define TBID_SEGTYPE_BITS 0x0F /* One of the predefined segment types */ -#define TBID_SEGTYPE_S 0 -#define TBID_SEGSCOPE_BITS 0x30 /* Indicates the scope of the segment */ -#define TBID_SEGSCOPE_S 4 -#define TBID_SEGGADDR_BITS 0xC0 /* Indicates access possible via pGAddr */ -#define TBID_SEGGADDR_S 6 - -/* Segments of memory can only really contain a few types of data */ -#define TBID_SEGTYPE_TEXT 0x02 /* Code segment */ -#define TBID_SEGTYPE_DATA 0x04 /* Data segment */ -#define TBID_SEGTYPE_STACK 0x06 /* Stack segment */ -#define TBID_SEGTYPE_HEAP 0x0A /* Heap segment */ -#define TBID_SEGTYPE_ROOT 0x0C /* Root block segments */ -#define TBID_SEGTYPE_STRING 0x0E /* String table segment */ - -/* Segments have one of three possible scopes */ -#define TBID_SEGSCOPE_INIT 0 /* Temporary area for initialisation phase */ -#define TBID_SEGSCOPE_LOCAL 1 /* Private to this thread */ -#define TBID_SEGSCOPE_GLOBAL 2 /* Shared globally throughout the system */ -#define TBID_SEGSCOPE_SHARED 3 /* Limited sharing between local/global */ - -/* For segment specifier a further field in two of the remaining bits - indicates the usefulness of the pGAddr field in the segment descriptor - descriptor. */ -#define TBID_SEGGADDR_NULL 0 /* pGAddr is NULL -> SEGSCOPE_(LOCAL|INIT) */ -#define TBID_SEGGADDR_READ 1 /* Only read via pGAddr */ -#define TBID_SEGGADDR_WRITE 2 /* Full access via pGAddr */ -#define TBID_SEGGADDR_EXEC 3 /* Only execute via pGAddr */ - -/* The following values are common to both segment and signal Id value and - live in the top 8 bits of the Id values. */ - -/* The ISTAT bit indicates if segments are related to interrupt vs - background level interfaces a thread can still handle all triggers at - either level, but can also split these up if it wants to. */ -#define TBID_ISTAT_BIT 0x01000000 -#define TBID_ISTAT_S 24 - -/* Privilege needed to access a segment is indicated by the next bit. - - This bit is set to mirror the current privilege level when starting a - search for a segment - setting it yourself toggles the automatically - generated state which is only useful to emulate unprivileged behaviour - or access unprivileged areas of memory while at privileged level. */ -#define TBID_PSTAT_BIT 0x02000000 -#define TBID_PSTAT_S 25 - -/* The top six bits of a signal/segment specifier identifies a thread within - the system. This represents a segments owner. */ -#define TBID_THREAD_BITS 0xFC000000 -#define TBID_THREAD_S 26 - -/* Special thread id values */ -#define TBID_THREAD_NULL (-32) /* Never matches any thread/segment id used */ -#define TBID_THREAD_GLOBAL (-31) /* Things global to all threads */ -#define TBID_THREAD_HOST ( -1) /* Host interface */ -#define TBID_THREAD_EXTIO (TBID_THREAD_HOST) /* Host based ExtIO i/f */ - -/* Virtual Id's are used for external thread interface structures or the - above special Id's */ -#define TBID_IS_VIRTTHREAD( Id ) ((Id) < 0) - -/* Real Id's are used for actual hardware threads that are local */ -#define TBID_IS_REALTHREAD( Id ) ((Id) >= 0) - -/* Generate a segment Id given Thread, Scope, and Type */ -#define TBID_SEG( Thread, Scope, Type ) (\ - ((Thread)<<TBID_THREAD_S) + ((Scope)<<TBID_SEGSCOPE_S) + (Type)) - -/* Generate a signal Id given Thread and SigNum */ -#define TBID_SIG( Thread, SigNum ) (\ - ((Thread)<<TBID_THREAD_S) + ((SigNum)<<TBID_SIGNUM_S) + TBID_SIGNAL_BIT) - -/* Generate an Id that solely represents a thread - useful for cache ops */ -#define TBID_THD( Thread ) ((Thread)<<TBID_THREAD_S) -#define TBID_THD_NULL ((TBID_THREAD_NULL) <<TBID_THREAD_S) -#define TBID_THD_GLOBAL ((TBID_THREAD_GLOBAL)<<TBID_THREAD_S) - -/* Common exception handler (see TBID_SIGNUM_XXF below) receives hardware - generated fault codes TBIXXF_SIGNUM_xxF in it's SigNum parameter */ -#define TBIXXF_SIGNUM_IIF 0x01 /* General instruction fault */ -#define TBIXXF_SIGNUM_PGF 0x02 /* Privilege general fault */ -#define TBIXXF_SIGNUM_DHF 0x03 /* Data access watchpoint HIT */ -#define TBIXXF_SIGNUM_IGF 0x05 /* Code fetch general read failure */ -#define TBIXXF_SIGNUM_DGF 0x07 /* Data access general read/write fault */ -#define TBIXXF_SIGNUM_IPF 0x09 /* Code fetch page fault */ -#define TBIXXF_SIGNUM_DPF 0x0B /* Data access page fault */ -#define TBIXXF_SIGNUM_IHF 0x0D /* Instruction breakpoint HIT */ -#define TBIXXF_SIGNUM_DWF 0x0F /* Data access read-only fault */ - -/* Hardware signals communicate events between processing levels within a - single thread all the _xxF cases are exceptions and are routed via a - common exception handler, _SWx are software trap events and kicks including - __TBISignal generated kicks, and finally _TRx are hardware triggers */ -#define TBID_SIGNUM_SW0 0x00 /* SWITCH GROUP 0 - Per thread user */ -#define TBID_SIGNUM_SW1 0x01 /* SWITCH GROUP 1 - Per thread system */ -#define TBID_SIGNUM_SW2 0x02 /* SWITCH GROUP 2 - Internal global request */ -#define TBID_SIGNUM_SW3 0x03 /* SWITCH GROUP 3 - External global request */ -#ifdef TBI_1_4 -#define TBID_SIGNUM_FPE 0x04 /* Deferred exception - Any IEEE 754 exception */ -#define TBID_SIGNUM_FPD 0x05 /* Deferred exception - Denormal exception */ -/* Reserved 0x6 for a reserved deferred exception */ -#define TBID_SIGNUM_BUS 0x07 /* Deferred exception - Bus Error */ -/* Reserved 0x08-0x09 */ -#else -/* Reserved 0x04-0x09 */ -#endif -/* Reserved 0x0A-0x0F */ -#define TBID_SIGNUM_TRT 0x10 /* Timer trigger */ -#define TBID_SIGNUM_LWK 0x11 /* Low level kick */ -#define TBID_SIGNUM_XXF 0x12 /* Fault handler - receives ALL _xxF sigs */ -#ifdef TBI_1_4 -#define TBID_SIGNUM_DFR 0x13 /* Deferred Exception handler */ -#else -#define TBID_SIGNUM_FPE 0x13 /* FPE Exception handler */ -#endif -/* External trigger one group 0x14 to 0x17 - per thread */ -#define TBID_SIGNUM_TR1(Thread) (0x14+(Thread)) -#define TBID_SIGNUM_T10 0x14 -#define TBID_SIGNUM_T11 0x15 -#define TBID_SIGNUM_T12 0x16 -#define TBID_SIGNUM_T13 0x17 -/* External trigger two group 0x18 to 0x1b - per thread */ -#define TBID_SIGNUM_TR2(Thread) (0x18+(Thread)) -#define TBID_SIGNUM_T20 0x18 -#define TBID_SIGNUM_T21 0x19 -#define TBID_SIGNUM_T22 0x1A -#define TBID_SIGNUM_T23 0x1B -#define TBID_SIGNUM_TR3 0x1C /* External trigger N-4 (global) */ -#define TBID_SIGNUM_TR4 0x1D /* External trigger N-3 (global) */ -#define TBID_SIGNUM_TR5 0x1E /* External trigger N-2 (global) */ -#define TBID_SIGNUM_TR6 0x1F /* External trigger N-1 (global) */ -#define TBID_SIGNUM_MAX 0x1F - -/* Return the trigger register(TXMASK[I]/TXSTAT[I]) bits related to - each hardware signal, sometimes this is a many-to-one relationship. */ -#define TBI_TRIG_BIT(SigNum) (\ - ((SigNum) >= TBID_SIGNUM_TRT) ? 1<<((SigNum)-TBID_SIGNUM_TRT) :\ - ((SigNum) == TBID_SIGNUM_LWK) ? \ - TXSTAT_KICK_BIT : TXSTATI_BGNDHALT_BIT ) - -/* Return the hardware trigger vector number for entries in the - HWVEC0EXT table that will generate the required internal trigger. */ -#define TBI_TRIG_VEC(SigNum) (\ - ((SigNum) >= TBID_SIGNUM_T10) ? ((SigNum)-TBID_SIGNUM_TRT) : -1) - -/* Default trigger masks for each thread at background/interrupt level */ -#define TBI_TRIGS_INIT( Thread ) (\ - TXSTAT_KICK_BIT + TBI_TRIG_BIT(TBID_SIGNUM_TR1(Thread)) ) -#define TBI_INTS_INIT( Thread ) (\ - TXSTAT_KICK_BIT + TXSTATI_BGNDHALT_BIT \ - + TBI_TRIG_BIT(TBID_SIGNUM_TR2(Thread)) ) - -#ifndef __ASSEMBLY__ -/* A spin-lock location is a zero-initialised location in memory */ -typedef volatile int TBISPIN, *PTBISPIN; - -/* A kick location is a hardware location you can write to - * in order to cause a kick - */ -typedef volatile int *PTBIKICK; - -#if defined(METAC_1_0) || defined(METAC_1_1) -/* Macro to perform a kick */ -#define TBI_KICK( pKick ) do { pKick[0] = 1; } while (0) -#else -/* #define METAG_LIN_VALUES before including machine.h if required */ -#ifdef LINSYSEVENT_WR_COMBINE_FLUSH -/* Macro to perform a kick - write combiners must be flushed */ -#define TBI_KICK( pKick ) do {\ - volatile int *pFlush = (volatile int *) LINSYSEVENT_WR_COMBINE_FLUSH; \ - pFlush[0] = 0; \ - pKick[0] = 1; } while (0) -#endif -#endif /* if defined(METAC_1_0) || defined(METAC_1_1) */ -#endif /* ifndef __ASSEMBLY__ */ - -#ifndef __ASSEMBLY__ -/* 64-bit dual unit state value */ -typedef struct _tbidual_tag_ { - /* 32-bit value from a pair of registers in data or address units */ - int U0, U1; -} TBIDUAL, *PTBIDUAL; -#endif /* ifndef __ASSEMBLY__ */ - -/* Byte offsets of fields within TBIDUAL */ -#define TBIDUAL_U0 (0) -#define TBIDUAL_U1 (4) - -#define TBIDUAL_BYTES (8) - -#define TBICTX_CRIT_BIT 0x0001 /* ASync state saved in TBICTX */ -#define TBICTX_SOFT_BIT 0x0002 /* Sync state saved in TBICTX (other bits 0) */ -#ifdef TBI_FASTINT_1_4 -#define TBICTX_FINT_BIT 0x0004 /* Using Fast Interrupts */ -#endif -#define TBICTX_FPAC_BIT 0x0010 /* FPU state in TBICTX, FPU active on entry */ -#define TBICTX_XMCC_BIT 0x0020 /* Bit to identify a MECC task */ -#define TBICTX_CBUF_BIT 0x0040 /* Hardware catch buffer flag from TXSTATUS */ -#define TBICTX_CBRP_BIT 0x0080 /* Read pipeline dirty from TXDIVTIME */ -#define TBICTX_XDX8_BIT 0x0100 /* Saved DX.8 to DX.15 too */ -#define TBICTX_XAXX_BIT 0x0200 /* Save remaining AX registers to AX.7 */ -#define TBICTX_XHL2_BIT 0x0400 /* Saved hardware loop registers too */ -#define TBICTX_XTDP_BIT 0x0800 /* Saved DSP registers too */ -#define TBICTX_XEXT_BIT 0x1000 /* Set if TBICTX.Ext.Ctx contains extended - state save area, otherwise TBICTX.Ext.AX2 - just holds normal A0.2 and A1.2 states */ -#define TBICTX_WAIT_BIT 0x2000 /* Causes wait for trigger - sticky toggle */ -#define TBICTX_XCBF_BIT 0x4000 /* Catch buffer or RD extracted into TBICTX */ -#define TBICTX_PRIV_BIT 0x8000 /* Set if system uses 'privileged' model */ - -#ifdef METAC_1_0 -#define TBICTX_XAX3_BIT 0x0200 /* Saved AX.5 to AX.7 for XAXX */ -#define TBICTX_AX_REGS 5 /* Ax.0 to Ax.4 are core GP regs on CHORUS */ -#else -#define TBICTX_XAX4_BIT 0x0200 /* Saved AX.4 to AX.7 for XAXX */ -#define TBICTX_AX_REGS 4 /* Default is Ax.0 to Ax.3 */ -#endif - -#ifdef TBI_1_4 -#define TBICTX_CFGFPU_FX16_BIT 0x00010000 /* Save FX.8 to FX.15 too */ - -/* The METAC_CORE_ID_CONFIG field indicates omitted DSP resources */ -#define METAC_COREID_CFGXCTX_MASK( Value ) (\ - ( (((Value & METAC_COREID_CFGDSP_BITS)>> \ - METAC_COREID_CFGDSP_S ) == METAC_COREID_CFGDSP_MIN) ? \ - ~(TBICTX_XHL2_BIT+TBICTX_XTDP_BIT+ \ - TBICTX_XAXX_BIT+TBICTX_XDX8_BIT ) : ~0U ) ) -#endif - -/* Extended context state provides a standardised method for registering the - arguments required by __TBICtxSave to save the additional register states - currently in use by non general purpose code. The state of the __TBIExtCtx - variable in the static space of the thread forms an extension of the base - context of the thread. - - If ( __TBIExtCtx.Ctx.SaveMask == 0 ) then pExt is assumed to be NULL and - the empty state of __TBIExtCtx is represented by the fact that - TBICTX.SaveMask does not have the bit TBICTX_XEXT_BIT set. - - If ( __TBIExtCtx.Ctx.SaveMask != 0 ) then pExt should point at a suitably - sized extended context save area (usually at the end of the stack space - allocated by the current routine). This space should allow for the - displaced state of A0.2 and A1.2 to be saved along with the other extended - states indicated via __TBIExtCtx.Ctx.SaveMask. */ -#ifndef __ASSEMBLY__ -typedef union _tbiextctx_tag_ { - long long Val; - TBIDUAL AX2; - struct _tbiextctxext_tag { -#ifdef TBI_1_4 - short DspramSizes; /* DSPRAM sizes. Encoding varies between - TBICtxAlloc and the ECH scheme. */ -#else - short Reserved0; -#endif - short SaveMask; /* Flag bits for state saved */ - PTBIDUAL pExt; /* AX[2] state saved first plus Xxxx state */ - - } Ctx; - -} TBIEXTCTX, *PTBIEXTCTX; - -/* Automatic registration of extended context save for __TBINestInts */ -extern TBIEXTCTX __TBIExtCtx; -#endif /* ifndef __ASSEMBLY__ */ - -/* Byte offsets of fields within TBIEXTCTX */ -#define TBIEXTCTX_AX2 (0) -#define TBIEXTCTX_Ctx (0) -#define TBIEXTCTX_Ctx_SaveMask (TBIEXTCTX_Ctx + 2) -#define TBIEXTCTX_Ctx_pExt (TBIEXTCTX_Ctx + 2 + 2) - -/* Extended context data size calculation constants */ -#define TBICTXEXT_BYTES (8) -#define TBICTXEXTBB8_BYTES (8*8) -#define TBICTXEXTAX3_BYTES (3*8) -#define TBICTXEXTAX4_BYTES (4*8) -#ifdef METAC_1_0 -#define TBICTXEXTAXX_BYTES TBICTXEXTAX3_BYTES -#else -#define TBICTXEXTAXX_BYTES TBICTXEXTAX4_BYTES -#endif -#define TBICTXEXTHL2_BYTES (3*8) -#define TBICTXEXTTDR_BYTES (27*8) -#define TBICTXEXTTDP_BYTES TBICTXEXTTDR_BYTES - -#ifdef TBI_1_4 -#define TBICTXEXTFX8_BYTES (4*8) -#define TBICTXEXTFPAC_BYTES (1*4 + 2*2 + 4*8) -#define TBICTXEXTFACF_BYTES (3*8) -#endif - -/* Maximum flag bits to be set via the TBICTX_EXTSET macro */ -#define TBICTXEXT_MAXBITS (TBICTX_XEXT_BIT| \ - TBICTX_XDX8_BIT|TBICTX_XAXX_BIT|\ - TBICTX_XHL2_BIT|TBICTX_XTDP_BIT ) - -/* Maximum size of the extended context save area for current variant */ -#define TBICTXEXT_MAXBYTES (TBICTXEXT_BYTES+TBICTXEXTBB8_BYTES+\ - TBICTXEXTAXX_BYTES+TBICTXEXTHL2_BYTES+\ - TBICTXEXTTDP_BYTES ) - -#ifdef TBI_FASTINT_1_4 -/* Maximum flag bits to be set via the TBICTX_EXTSET macro */ -#define TBICTX2EXT_MAXBITS (TBICTX_XDX8_BIT|TBICTX_XAXX_BIT|\ - TBICTX_XHL2_BIT|TBICTX_XTDP_BIT ) - -/* Maximum size of the extended context save area for current variant */ -#define TBICTX2EXT_MAXBYTES (TBICTXEXTBB8_BYTES+TBICTXEXTAXX_BYTES\ - +TBICTXEXTHL2_BYTES+TBICTXEXTTDP_BYTES ) -#endif - -/* Specify extended resources being used by current routine, code must be - assembler generated to utilise extended resources- - - MOV D0xxx,A0StP ; Perform alloca - routine should - ADD A0StP,A0StP,#SaveSize ; setup/use A0FrP to access locals - MOVT D1xxx,#SaveMask ; TBICTX_XEXT_BIT MUST be set - SETL [A1GbP+#OG(___TBIExtCtx)],D0xxx,D1xxx - - NB: OG(___TBIExtCtx) is a special case supported for SETL/GETL operations - on 64-bit sizes structures only, other accesses must be based on use - of OGA(___TBIExtCtx). - - At exit of routine- - - MOV D0xxx,#0 ; Clear extended context save state - MOV D1xxx,#0 - SETL [A1GbP+#OG(___TBIExtCtx)],D0xxx,D1xxx - SUB A0StP,A0StP,#SaveSize ; If original A0StP required - - NB: Both the setting and clearing of the whole __TBIExtCtx MUST be done - atomically in one 64-bit write operation. - - For simple interrupt handling only via __TBINestInts there should be no - impact of the __TBIExtCtx system. If pre-emptive scheduling is being - performed however (assuming __TBINestInts has already been called earlier - on) then the following logic will correctly call __TBICtxSave if required - and clear out the currently selected background task- - - if ( __TBIExtCtx.Ctx.SaveMask & TBICTX_XEXT_BIT ) - { - / * Store extended states in pCtx * / - State.Sig.SaveMask |= __TBIExtCtx.Ctx.SaveMask; - - (void) __TBICtxSave( State, (void *) __TBIExtCtx.Ctx.pExt ); - __TBIExtCtx.Val = 0; - } - - and when restoring task states call __TBICtxRestore- - - / * Restore state from pCtx * / - State.Sig.pCtx = pCtx; - State.Sig.SaveMask = pCtx->SaveMask; - - if ( State.Sig.SaveMask & TBICTX_XEXT_BIT ) - { - / * Restore extended states from pCtx * / - __TBIExtCtx.Val = pCtx->Ext.Val; - - (void) __TBICtxRestore( State, (void *) __TBIExtCtx.Ctx.pExt ); - } - - */ - -/* Critical thread state save area */ -#ifndef __ASSEMBLY__ -typedef struct _tbictx_tag_ { - /* TXSTATUS_FLAG_BITS and TXSTATUS_LSM_STEP_BITS from TXSTATUS */ - short Flags; - /* Mask indicates any extended context state saved; 0 -> Never run */ - short SaveMask; - /* Saved PC value */ - int CurrPC; - /* Saved critical register states */ - TBIDUAL DX[8]; - /* Background control register states - for cores without catch buffer - base in DIVTIME the TXSTATUS bits RPVALID and RPMASK are stored with - the real state TXDIVTIME in CurrDIVTIME */ - int CurrRPT, CurrBPOBITS, CurrMODE, CurrDIVTIME; - /* Saved AX register states */ - TBIDUAL AX[2]; - TBIEXTCTX Ext; - TBIDUAL AX3[TBICTX_AX_REGS-3]; - - /* Any CBUF state to be restored by a handler return must be stored here. - Other extended state can be stored anywhere - see __TBICtxSave and - __TBICtxRestore. */ - -} TBICTX, *PTBICTX; - -#ifdef TBI_FASTINT_1_4 -typedef struct _tbictx2_tag_ { - TBIDUAL AX[2]; /* AU.0, AU.1 */ - TBIDUAL DX[2]; /* DU.0, DU.4 */ - int CurrMODE; - int CurrRPT; - int CurrSTATUS; - void *CurrPC; /* PC in PC address space */ -} TBICTX2, *PTBICTX2; -/* TBICTX2 is followed by: - * TBICTXEXTCB0 if TXSTATUS.CBMarker - * TBIDUAL * TXSTATUS.IRPCount if TXSTATUS.IRPCount > 0 - * TBICTXGP if using __TBIStdRootIntHandler or __TBIStdCtxSwitchRootIntHandler - */ - -typedef struct _tbictxgp_tag_ { - short DspramSizes; - short SaveMask; - void *pExt; - TBIDUAL DX[6]; /* DU.1-DU.3, DU.5-DU.7 */ - TBIDUAL AX[2]; /* AU.2-AU.3 */ -} TBICTXGP, *PTBICTXGP; - -#define TBICTXGP_DspramSizes (0) -#define TBICTXGP_SaveMask (TBICTXGP_DspramSizes + 2) -#define TBICTXGP_MAX_BYTES (2 + 2 + 4 + 8*(6+2)) - -#endif -#endif /* ifndef __ASSEMBLY__ */ - -/* Byte offsets of fields within TBICTX */ -#define TBICTX_Flags (0) -#define TBICTX_SaveMask (2) -#define TBICTX_CurrPC (4) -#define TBICTX_DX (2 + 2 + 4) -#define TBICTX_CurrRPT (2 + 2 + 4 + 8 * 8) -#define TBICTX_CurrMODE (2 + 2 + 4 + 8 * 8 + 4 + 4) -#define TBICTX_AX (2 + 2 + 4 + 8 * 8 + 4 + 4 + 4 + 4) -#define TBICTX_Ext (2 + 2 + 4 + 8 * 8 + 4 + 4 + 4 + 4 + 2 * 8) -#define TBICTX_Ext_AX2 (TBICTX_Ext + TBIEXTCTX_AX2) -#define TBICTX_Ext_AX2_U0 (TBICTX_Ext + TBIEXTCTX_AX2 + TBIDUAL_U0) -#define TBICTX_Ext_AX2_U1 (TBICTX_Ext + TBIEXTCTX_AX2 + TBIDUAL_U1) -#define TBICTX_Ext_Ctx_pExt (TBICTX_Ext + TBIEXTCTX_Ctx_pExt) -#define TBICTX_Ext_Ctx_SaveMask (TBICTX_Ext + TBIEXTCTX_Ctx_SaveMask) - -#ifdef TBI_FASTINT_1_4 -#define TBICTX2_BYTES (8 * 2 + 8 * 2 + 4 + 4 + 4 + 4) -#define TBICTXEXTCB0_BYTES (4 + 4 + 8) - -#define TBICTX2_CRIT_MAX_BYTES (TBICTX2_BYTES + TBICTXEXTCB0_BYTES + 6 * TBIDUAL_BYTES) -#define TBI_SWITCH_NEXT_PC(PC, EXTRA) ((PC) + (EXTRA & 1) ? 8 : 4) -#endif - -#ifndef __ASSEMBLY__ -/* Extended thread state save areas - catch buffer state element */ -typedef struct _tbictxextcb0_tag_ { - /* Flags data and address value - see METAC_CATCH_VALUES in machine.h */ - unsigned long CBFlags, CBAddr; - /* 64-bit data */ - TBIDUAL CBData; - -} TBICTXEXTCB0, *PTBICTXEXTCB0; - -/* Read pipeline state saved on later cores after single catch buffer slot */ -typedef struct _tbictxextrp6_tag_ { - /* RPMask is TXSTATUS_RPMASK_BITS only, reserved is undefined */ - unsigned long RPMask, Reserved0; - TBIDUAL CBData[6]; - -} TBICTXEXTRP6, *PTBICTXEXTRP6; - -/* Extended thread state save areas - 8 DU register pairs */ -typedef struct _tbictxextbb8_tag_ { - /* Remaining Data unit registers in 64-bit pairs */ - TBIDUAL UX[8]; - -} TBICTXEXTBB8, *PTBICTXEXTBB8; - -/* Extended thread state save areas - 3 AU register pairs */ -typedef struct _tbictxextbb3_tag_ { - /* Remaining Address unit registers in 64-bit pairs */ - TBIDUAL UX[3]; - -} TBICTXEXTBB3, *PTBICTXEXTBB3; - -/* Extended thread state save areas - 4 AU register pairs or 4 FX pairs */ -typedef struct _tbictxextbb4_tag_ { - /* Remaining Address unit or FPU registers in 64-bit pairs */ - TBIDUAL UX[4]; - -} TBICTXEXTBB4, *PTBICTXEXTBB4; - -/* Extended thread state save areas - Hardware loop states (max 2) */ -typedef struct _tbictxexthl2_tag_ { - /* Hardware looping register states */ - TBIDUAL Start, End, Count; - -} TBICTXEXTHL2, *PTBICTXEXTHL2; - -/* Extended thread state save areas - DSP register states */ -typedef struct _tbictxexttdp_tag_ { - /* DSP 32-bit accumulator register state (Bits 31:0 of ACX.0) */ - TBIDUAL Acc32[1]; - /* DSP > 32-bit accumulator bits 63:32 of ACX.0 (zero-extended) */ - TBIDUAL Acc64[1]; - /* Twiddle register state, and three phase increment states */ - TBIDUAL PReg[4]; - /* Modulo region size, padded to 64-bits */ - int CurrMRSIZE, Reserved0; - -} TBICTXEXTTDP, *PTBICTXEXTTDP; - -/* Extended thread state save areas - DSP register states including DSP RAM */ -typedef struct _tbictxexttdpr_tag_ { - /* DSP 32-bit accumulator register state (Bits 31:0 of ACX.0) */ - TBIDUAL Acc32[1]; - /* DSP 40-bit accumulator register state (Bits 39:8 of ACX.0) */ - TBIDUAL Acc40[1]; - /* DSP RAM Pointers */ - TBIDUAL RP0[2], WP0[2], RP1[2], WP1[2]; - /* DSP RAM Increments */ - TBIDUAL RPI0[2], WPI0[2], RPI1[2], WPI1[2]; - /* Template registers */ - unsigned long Tmplt[16]; - /* Modulo address region size and DSP RAM module region sizes */ - int CurrMRSIZE, CurrDRSIZE; - -} TBICTXEXTTDPR, *PTBICTXEXTTDPR; - -#ifdef TBI_1_4 -/* The METAC_ID_CORE register state is a marker for the FPU - state that is then stored after this core header structure. */ -#define TBICTXEXTFPU_CONFIG_MASK ( (METAC_COREID_NOFPACC_BIT+ \ - METAC_COREID_CFGFPU_BITS ) << \ - METAC_COREID_CONFIG_BITS ) - -/* Recorded FPU exception state from TXDEFR in DefrFpu */ -#define TBICTXEXTFPU_DEFRFPU_MASK (TXDEFR_FPU_FE_BITS) - -/* Extended thread state save areas - FPU register states */ -typedef struct _tbictxextfpu_tag_ { - /* Stored METAC_CORE_ID CONFIG */ - int CfgFpu; - /* Stored deferred TXDEFR bits related to FPU - * - * This is encoded as follows in order to fit into 16-bits: - * DefrFPU:15 - 14 <= 0 - * :13 - 8 <= TXDEFR:21-16 - * : 7 - 6 <= 0 - * : 5 - 0 <= TXDEFR:5-0 - */ - short DefrFpu; - - /* TXMODE bits related to FPU */ - short ModeFpu; - - /* FPU Even/Odd register states */ - TBIDUAL FX[4]; - - /* if CfgFpu & TBICTX_CFGFPU_FX16_BIT -> 1 then TBICTXEXTBB4 holds FX.8-15 */ - /* if CfgFpu & TBICTX_CFGFPU_NOACF_BIT -> 0 then TBICTXEXTFPACC holds state */ -} TBICTXEXTFPU, *PTBICTXEXTFPU; - -/* Extended thread state save areas - FPU accumulator state */ -typedef struct _tbictxextfpacc_tag_ { - /* FPU accumulator register state - three 64-bit parts */ - TBIDUAL FAcc32[3]; - -} TBICTXEXTFPACC, *PTBICTXEXTFPACC; -#endif - -/* Prototype TBI structure */ -struct _tbi_tag_ ; - -/* A 64-bit return value used commonly in the TBI APIs */ -typedef union _tbires_tag_ { - /* Save and load this value to get/set the whole result quickly */ - long long Val; - - /* Parameter of a fnSigs or __TBICtx* call */ - struct _tbires_sig_tag_ { - /* TXMASK[I] bits zeroed upto and including current trigger level */ - unsigned short TrigMask; - /* Control bits for handlers - see PTBIAPIFN documentation below */ - unsigned short SaveMask; - /* Pointer to the base register context save area of the thread */ - PTBICTX pCtx; - } Sig; - - /* Result of TBIThrdPrivId call */ - struct _tbires_thrdprivid_tag_ { - /* Basic thread identifier; just TBID_THREAD_BITS */ - int Id; - /* None thread number bits; TBID_ISTAT_BIT+TBID_PSTAT_BIT */ - int Priv; - } Thrd; - - /* Parameter and Result of a __TBISwitch call */ - struct _tbires_switch_tag_ { - /* Parameter passed across context switch */ - void *pPara; - /* Thread context of other Thread includng restore flags */ - PTBICTX pCtx; - } Switch; - - /* For extended S/W events only */ - struct _tbires_ccb_tag_ { - void *pCCB; - int COff; - } CCB; - - struct _tbires_tlb_tag_ { - int Leaf; /* TLB Leaf data */ - int Flags; /* TLB Flags */ - } Tlb; - -#ifdef TBI_FASTINT_1_4 - struct _tbires_intr_tag_ { - short TrigMask; - short SaveMask; - PTBICTX2 pCtx; - } Intr; -#endif - -} TBIRES, *PTBIRES; -#endif /* ifndef __ASSEMBLY__ */ - -#ifndef __ASSEMBLY__ -/* Prototype for all signal handler functions, called via ___TBISyncTrigger or - ___TBIASyncTrigger. - - State.Sig.TrigMask will indicate the bits set within TXMASKI at - the time of the handler call that have all been cleared to prevent - nested interrupt occurring immediately. - - State.Sig.SaveMask is a bit-mask which will be set to Zero when a trigger - occurs at background level and TBICTX_CRIT_BIT and optionally - TBICTX_CBUF_BIT when a trigger occurs at interrupt level. - - TBICTX_CBUF_BIT reflects the state of TXSTATUS_CBMARKER_BIT for - the interrupted background thread. - - State.Sig.pCtx will point at a TBICTX structure generated to hold the - critical state of the interrupted thread at interrupt level and - should be set to NULL when called at background level. - - Triggers will indicate the status of TXSTAT or TXSTATI sampled by the - code that called the handler. - - Inst is defined as 'Inst' if the SigNum is TBID_SIGNUM_SWx and holds the - actual SWITCH instruction detected, in other cases the value of this - parameter is undefined. - - pTBI points at the PTBI structure related to the thread and processing - level involved. - - TBIRES return value at both processing levels is similar in terms of any - changes that the handler makes. By default the State argument value - passed in should be returned. - - Sig.TrigMask value is bits to OR back into TXMASKI when the handler - completes to enable currently disabled interrupts. - - Sig.SaveMask value is ignored. - - Sig.pCtx is ignored. - - */ -typedef TBIRES (*PTBIAPIFN)( TBIRES State, int SigNum, - int Triggers, int Inst, - volatile struct _tbi_tag_ *pTBI ); -#endif /* ifndef __ASSEMBLY__ */ - -#ifndef __ASSEMBLY__ -/* The global memory map is described by a list of segment descriptors */ -typedef volatile struct _tbiseg_tag_ { - volatile struct _tbiseg_tag_ *pLink; - int Id; /* Id of the segment */ - TBISPIN Lock; /* Spin-lock for struct (normally 0) */ - unsigned int Bytes; /* Size of region in bytes */ - void *pGAddr; /* Base addr of region in global space */ - void *pLAddr; /* Base addr of region in local space */ - int Data[2]; /* Segment specific data (may be extended) */ - -} TBISEG, *PTBISEG; -#endif /* ifndef __ASSEMBLY__ */ - -/* Offsets of fields in TBISEG structure */ -#define TBISEG_pLink ( 0) -#define TBISEG_Id ( 4) -#define TBISEG_Lock ( 8) -#define TBISEG_Bytes (12) -#define TBISEG_pGAddr (16) -#define TBISEG_pLAddr (20) -#define TBISEG_Data (24) - -#ifndef __ASSEMBLY__ -typedef volatile struct _tbi_tag_ { - int SigMask; /* Bits set to represent S/W events */ - PTBIKICK pKick; /* Kick addr for S/W events */ - void *pCCB; /* Extended S/W events */ - PTBISEG pSeg; /* Related segment structure */ - PTBIAPIFN fnSigs[TBID_SIGNUM_MAX+1];/* Signal handler API table */ -} *PTBI, TBI; -#endif /* ifndef __ASSEMBLY__ */ - -/* Byte offsets of fields within TBI */ -#define TBI_SigMask (0) -#define TBI_pKick (4) -#define TBI_pCCB (8) -#define TBI_pSeg (12) -#define TBI_fnSigs (16) - -#ifdef TBI_1_4 -#ifndef __ASSEMBLY__ -/* This handler should be used for TBID_SIGNUM_DFR */ -extern TBIRES __TBIHandleDFR ( TBIRES State, int SigNum, - int Triggers, int Inst, - volatile struct _tbi_tag_ *pTBI ); -#endif -#endif - -/* String table entry - special values */ -#define METAG_TBI_STRS (0x5300) /* Tag : If entry is valid */ -#define METAG_TBI_STRE (0x4500) /* Tag : If entry is end of table */ -#define METAG_TBI_STRG (0x4700) /* Tag : If entry is a gap */ -#define METAG_TBI_STRX (0x5A00) /* TransLen : If no translation present */ - -#ifndef __ASSEMBLY__ -typedef volatile struct _tbistr_tag_ { - short Bytes; /* Length of entry in Bytes */ - short Tag; /* Normally METAG_TBI_STRS(0x5300) */ - short Len; /* Length of the string entry (incl null) */ - short TransLen; /* Normally METAG_TBI_STRX(0x5A00) */ - char String[8]; /* Zero terminated (may-be bigger) */ - -} TBISTR, *PTBISTR; -#endif /* ifndef __ASSEMBLY__ */ - -/* Cache size information - available as fields of Data[1] of global heap - segment */ -#define METAG_TBI_ICACHE_SIZE_S 0 /* see comments below */ -#define METAG_TBI_ICACHE_SIZE_BITS 0x0000000F -#define METAG_TBI_ICACHE_FILL_S 4 -#define METAG_TBI_ICACHE_FILL_BITS 0x000000F0 -#define METAG_TBI_DCACHE_SIZE_S 8 -#define METAG_TBI_DCACHE_SIZE_BITS 0x00000F00 -#define METAG_TBI_DCACHE_FILL_S 12 -#define METAG_TBI_DCACHE_FILL_BITS 0x0000F000 - -/* METAG_TBI_xCACHE_SIZE - Describes the physical cache size rounded up to the next power of 2 - relative to a 16K (2^14) cache. These sizes are encoded as a signed addend - to this base power of 2, for example - 4K -> 2^12 -> -2 (i.e. 12-14) - 8K -> 2^13 -> -1 - 16K -> 2^14 -> 0 - 32K -> 2^15 -> +1 - 64K -> 2^16 -> +2 - 128K -> 2^17 -> +3 - - METAG_TBI_xCACHE_FILL - Describes the physical cache size within the power of 2 area given by - the value above. For example a 10K cache may be represented as having - nearest size 16K with a fill of 10 sixteenths. This is encoded as the - number of unused 1/16ths, for example - 0000 -> 0 -> 16/16 - 0001 -> 1 -> 15/16 - 0010 -> 2 -> 14/16 - ... - 1111 -> 15 -> 1/16 - */ - -#define METAG_TBI_CACHE_SIZE_BASE_LOG2 14 - -/* Each declaration made by this macro generates a TBISTR entry */ -#ifndef __ASSEMBLY__ -#define TBISTR_DECL( Name, Str ) \ - __attribute__ ((__section__ (".tbistr") )) const char Name[] = #Str -#endif - -/* META timer values - see below for Timer support routines */ -#define TBI_TIMERWAIT_MIN (-16) /* Minimum 'recommended' period */ -#define TBI_TIMERWAIT_MAX (-0x7FFFFFFF) /* Maximum 'recommended' period */ - -#ifndef __ASSEMBLY__ -/* These macros allow direct access from C to any register known to the - assembler or defined in machine.h. Example candidates are TXTACTCYC, - TXIDLECYC, and TXPRIVEXT. Note that when higher level macros and routines - like the timer and trigger handling features below these should be used in - preference to this direct low-level access mechanism. */ -#define TBI_GETREG( Reg ) __extension__ ({\ - int __GRValue; \ - __asm__ volatile ("MOV\t%0," #Reg "\t/* (*TBI_GETREG OK) */" : \ - "=r" (__GRValue) ); \ - __GRValue; }) - -#define TBI_SETREG( Reg, Value ) do {\ - int __SRValue = Value; \ - __asm__ volatile ("MOV\t" #Reg ",%0\t/* (*TBI_SETREG OK) */" : \ - : "r" (__SRValue) ); } while (0) - -#define TBI_SWAPREG( Reg, Value ) do {\ - int __XRValue = (Value); \ - __asm__ volatile ("SWAP\t" #Reg ",%0\t/* (*TBI_SWAPREG OK) */" : \ - "=r" (__XRValue) : "0" (__XRValue) ); \ - Value = __XRValue; } while (0) - -/* Obtain and/or release global critical section lock given that interrupts - are already disabled and/or should remain disabled. */ -#define TBI_NOINTSCRITON do {\ - __asm__ volatile ("LOCK1\t\t/* (*TBI_NOINTSCRITON OK) */");} while (0) -#define TBI_NOINTSCRITOFF do {\ - __asm__ volatile ("LOCK0\t\t/* (*TBI_NOINTSCRITOFF OK) */");} while (0) -/* Optimised in-lining versions of the above macros */ - -#define TBI_LOCK( TrigState ) do {\ - int __TRValue; \ - int __ALOCKHI = LINSYSEVENT_WR_ATOMIC_LOCK & 0xFFFF0000; \ - __asm__ volatile ("MOV %0,#0\t\t/* (*TBI_LOCK ... */\n\t" \ - "SWAP\t%0,TXMASKI\t/* ... */\n\t" \ - "LOCK2\t\t/* ... */\n\t" \ - "SETD\t[%1+#0x40],D1RtP /* ... OK) */" : \ - "=r&" (__TRValue) : "u" (__ALOCKHI) ); \ - TrigState = __TRValue; } while (0) -#define TBI_CRITON( TrigState ) do {\ - int __TRValue; \ - __asm__ volatile ("MOV %0,#0\t\t/* (*TBI_CRITON ... */\n\t" \ - "SWAP\t%0,TXMASKI\t/* ... */\n\t" \ - "LOCK1\t\t/* ... OK) */" : \ - "=r" (__TRValue) ); \ - TrigState = __TRValue; } while (0) - -#define TBI_INTSX( TrigState ) do {\ - int __TRValue = TrigState; \ - __asm__ volatile ("SWAP\t%0,TXMASKI\t/* (*TBI_INTSX OK) */" : \ - "=r" (__TRValue) : "0" (__TRValue) ); \ - TrigState = __TRValue; } while (0) - -#define TBI_UNLOCK( TrigState ) do {\ - int __TRValue = TrigState; \ - int __ALOCKHI = LINSYSEVENT_WR_ATOMIC_LOCK & 0xFFFF0000; \ - __asm__ volatile ("SETD\t[%1+#0x00],D1RtP\t/* (*TBI_UNLOCK ... */\n\t" \ - "LOCK0\t\t/* ... */\n\t" \ - "MOV\tTXMASKI,%0\t/* ... OK) */" : \ - : "r" (__TRValue), "u" (__ALOCKHI) ); } while (0) - -#define TBI_CRITOFF( TrigState ) do {\ - int __TRValue = TrigState; \ - __asm__ volatile ("LOCK0\t\t/* (*TBI_CRITOFF ... */\n\t" \ - "MOV\tTXMASKI,%0\t/* ... OK) */" : \ - : "r" (__TRValue) ); } while (0) - -#define TBI_TRIGSX( SrcDst ) do { TBI_SWAPREG( TXMASK, SrcDst );} while (0) - -/* Composite macros to perform logic ops on INTS or TRIGS masks */ -#define TBI_INTSOR( Bits ) do {\ - int __TT = 0; TBI_INTSX(__TT); \ - __TT |= (Bits); TBI_INTSX(__TT); } while (0) - -#define TBI_INTSAND( Bits ) do {\ - int __TT = 0; TBI_INTSX(__TT); \ - __TT &= (Bits); TBI_INTSX(__TT); } while (0) - -#ifdef TBI_1_4 -#define TBI_DEFRICTRLSOR( Bits ) do {\ - int __TT = TBI_GETREG( CT.20 ); \ - __TT |= (Bits); TBI_SETREG( CT.20, __TT); } while (0) - -#define TBI_DEFRICTRLSAND( Bits ) do {\ - int __TT = TBI_GETREG( TXDEFR ); \ - __TT &= (Bits); TBI_SETREG( CT.20, __TT); } while (0) -#endif - -#define TBI_TRIGSOR( Bits ) do {\ - int __TT = TBI_GETREG( TXMASK ); \ - __TT |= (Bits); TBI_SETREG( TXMASK, __TT); } while (0) - -#define TBI_TRIGSAND( Bits ) do {\ - int __TT = TBI_GETREG( TXMASK ); \ - __TT &= (Bits); TBI_SETREG( TXMASK, __TT); } while (0) - -/* Macros to disable and re-enable interrupts using TBI_INTSX, deliberate - traps and exceptions can still be handled within the critical section. */ -#define TBI_STOPINTS( Value ) do {\ - int __TT = TBI_GETREG( TXMASKI ); \ - __TT &= TXSTATI_BGNDHALT_BIT; TBI_INTSX( __TT ); \ - Value = __TT; } while (0) -#define TBI_RESTINTS( Value ) do {\ - int __TT = Value; TBI_INTSX( __TT ); } while (0) - -/* Return pointer to segment list at current privilege level */ -PTBISEG __TBISegList( void ); - -/* Search the segment list for a match given Id, pStart can be NULL */ -PTBISEG __TBIFindSeg( PTBISEG pStart, int Id ); - -/* Prepare a new segment structure using space from within another */ -PTBISEG __TBINewSeg( PTBISEG pFromSeg, int Id, unsigned int Bytes ); - -/* Prepare a new segment using any global or local heap segments available */ -PTBISEG __TBIMakeNewSeg( int Id, unsigned int Bytes ); - -/* Insert a new segment into the segment list so __TBIFindSeg can locate it */ -void __TBIAddSeg( PTBISEG pSeg ); -#define __TBIADDSEG_DEF /* Some versions failed to define this */ - -/* Return Id of current thread; TBID_ISTAT_BIT+TBID_THREAD_BITS */ -int __TBIThreadId( void ); - -/* Return TBIRES.Thrd data for current thread */ -TBIRES __TBIThrdPrivId( void ); - -/* Return pointer to current threads TBI root block. - Id implies whether Int or Background root block is required */ -PTBI __TBI( int Id ); - -/* Try to set Mask bit using the spin-lock protocol, return 0 if fails and - new state if succeeds */ -int __TBIPoll( PTBISPIN pLock, int Mask ); - -/* Set Mask bits via the spin-lock protocol in *pLock, return new state */ -int __TBISpin( PTBISPIN pLock, int Mask ); - -/* Default handler set up for all TBI.fnSigs entries during initialisation */ -TBIRES __TBIUnExpXXX( TBIRES State, int SigNum, - int Triggers, int Inst, PTBI pTBI ); - -/* Call this routine to service triggers at background processing level. The - TBID_POLL_BIT of the Id parameter value will be used to indicate that the - routine should return if no triggers need to be serviced initially. If this - bit is not set the routine will block until one trigger handler is serviced - and then behave like the poll case servicing any remaining triggers - actually outstanding before returning. Normally the State parameter should - be simply initialised to zero and the result should be ignored, other - values/options are for internal use only. */ -TBIRES __TBISyncTrigger( TBIRES State, int Id ); - -/* Call this routine to enable processing of triggers by signal handlers at - interrupt level. The State parameter value passed is returned by this - routine. The State.Sig.TrigMask field also specifies the initial - state of the interrupt mask register TXMASKI to be setup by the call. - The other parts of the State parameter are ignored unless the PRIV bit is - set in the SaveMask field. In this case the State.Sig.pCtx field specifies - the base of the stack to which the interrupt system should switch into - as it saves the state of the previously executing code. In the case the - thread will be unprivileged as it continues execution at the return - point of this routine and it's future state will be effectively never - trusted to be valid. */ -TBIRES __TBIASyncTrigger( TBIRES State ); - -/* Call this to swap soft threads executing at the background processing level. - The TBIRES returned to the new thread will be the same as the NextThread - value specified to the call. The NextThread.Switch.pCtx value specifies - which thread context to restore and the NextThread.Switch.Para value can - hold an arbitrary expression to be passed between the threads. The saved - state of the previous thread will be stored in a TBICTX descriptor created - on it's stack and the address of this will be stored into the *rpSaveCtx - location specified. */ -TBIRES __TBISwitch( TBIRES NextThread, PTBICTX *rpSaveCtx ); - -/* Call this to initialise a stack frame ready for further use, up to four - 32-bit arguments may be specified after the fixed args to be passed via - the new stack pStack to the routine specified via fnMain. If the - main-line routine ever returns the thread will operate as if main itself - had returned and terminate with the return code given. */ -typedef int (*PTBIMAINFN)( TBIRES Arg /*, <= 4 additional 32-bit args */ ); -PTBICTX __TBISwitchInit( void *pStack, PTBIMAINFN fnMain, ... ); - -/* Call this to resume a thread from a saved synchronous TBICTX state. - The TBIRES returned to the new thread will be the same as the NextThread - value specified to the call. The NextThread.Switch.pCtx value specifies - which thread context to restore and the NextThread.Switch.Para value can - hold an arbitrary expression to be passed between the threads. The context - of the calling thread is lost and this routine never returns to the - caller. The TrigsMask value supplied is ored into TXMASKI to enable - interrupts after the context of the new thread is established. */ -void __TBISyncResume( TBIRES NextThread, int TrigsMask ); - -/* Call these routines to save and restore the extended states of - scheduled tasks. */ -void *__TBICtxSave( TBIRES State, void *pExt ); -void *__TBICtxRestore( TBIRES State, void *pExt ); - -#ifdef TBI_1_4 -#ifdef TBI_FASTINT_1_4 -/* Call these routines to copy the GP state to a separate buffer - * Only necessary for context switching. - */ -PTBICTXGP __TBICtx2SaveCrit( PTBICTX2 pCurrentCtx, PTBICTX2 pSaveCtx ); -void *__TBICtx2SaveGP( PTBICTXGP pCurrentCtxGP, PTBICTXGP pSaveCtxGP ); - -/* Call these routines to save and restore the extended states of - scheduled tasks. */ -void *__TBICtx2Save( PTBICTXGP pCtxGP, short SaveMask, void *pExt ); -void *__TBICtx2Restore( PTBICTX2 pCtx, short SaveMask, void *pExt ); -#endif - -/* If FPAC flag is set then significant FPU context exists. Call these routine - to save and restore it */ -void *__TBICtxFPUSave( TBIRES State, void *pExt ); -void *__TBICtxFPURestore( TBIRES State, void *pExt ); - -#ifdef TBI_FASTINT_1_4 -extern void *__TBICtx2FPUSave (PTBICTXGP, short, void*); -extern void *__TBICtx2FPURestore (PTBICTXGP, short, void*); -#endif -#endif - -#ifdef TBI_1_4 -/* Call these routines to save and restore DSPRAM. */ -void *__TBIDspramSaveA (short DspramSizes, void *pExt); -void *__TBIDspramSaveB (short DspramSizes, void *pExt); -void *__TBIDspramRestoreA (short DspramSizes, void *pExt); -void *__TBIDspramRestoreB (short DspramSizes, void *pExt); -#endif - -/* This routine should be used at the entrypoint of interrupt handlers to - re-enable higher priority interrupts and/or save state from the previously - executing background code. State is a TBIRES.Sig parameter with NoNestMask - indicating the triggers (if any) that should remain disabled and SaveMask - CBUF bit indicating the if the hardware catch buffer is dirty. Optionally - any number of extended state bits X??? including XCBF can be specified to - force a nested state save call to __TBICtxSave before the current routine - continues. (In the latter case __TBICtxRestore should be called to restore - any extended states before the background thread of execution is resumed) - - By default (no X??? bits specified in SaveMask) this routine performs a - sub-call to __TBICtxSave with the pExt and State parameters specified IF - some triggers could be serviced while the current interrupt handler - executes and the hardware catch buffer is actually dirty. In this case - this routine provides the XCBF bit in State.Sig.SaveMask to force the - __TBICtxSave to extract the current catch state. - - The NoNestMask parameter should normally indicate that the same or lower - triggers than those provoking the current handler call should not be - serviced in nested calls, zero may be specified if all possible interrupts - are to be allowed. - - The TBIRES.Sig value returned will be similar to the State parameter - specified with the XCBF bit ORed into it's SaveMask if a context save was - required and fewer bits set in it's TrigMask corresponding to the same/lower - priority interrupt triggers still not enabled. */ -TBIRES __TBINestInts( TBIRES State, void *pExt, int NoNestMask ); - -/* This routine causes the TBICTX structure specified in State.Sig.pCtx to - be restored. This implies that execution will not return to the caller. - The State.Sig.TrigMask field will be restored during the context switch - such that any immediately occurring interrupts occur in the context of the - newly specified task. The State.Sig.SaveMask parameter is ignored. */ -void __TBIASyncResume( TBIRES State ); - -/* Call this routine to enable fastest possible processing of one or more - interrupt triggers via a unified signal handler. The handler concerned - must simple return after servicing the related hardware. - The State.Sig.TrigMask parameter indicates the interrupt triggers to be - enabled and the Thin.Thin.fnHandler specifies the routine to call and - the whole Thin parameter value will be passed to this routine unaltered as - it's first parameter. */ -void __TBIASyncThin( TBIRES State, TBIRES Thin ); - -/* Do this before performing your own direct spin-lock access - use TBI_LOCK */ -int __TBILock( void ); - -/* Do this after performing your own direct spin-lock access - use TBI_UNLOCK */ -void __TBIUnlock( int TrigState ); - -/* Obtain and release global critical section lock - only stops execution - of interrupts on this thread and similar critical section code on other - local threads - use TBI_CRITON or TBI_CRITOFF */ -int __TBICritOn( void ); -void __TBICritOff( int TrigState ); - -/* Change INTS (TXMASKI) - return old state - use TBI_INTSX */ -int __TBIIntsX( int NewMask ); - -/* Change TRIGS (TXMASK) - return old state - use TBI_TRIGSX */ -int __TBITrigsX( int NewMask ); - -/* This function initialises a timer for first use, only the TBID_ISTAT_BIT - of the Id parameter is used to indicate which timer is to be modified. The - Wait value should either be zero to disable the timer concerned or be in - the recommended TBI_TIMERWAIT_* range to specify the delay required before - the first timer trigger occurs. - - The TBID_ISTAT_BIT of the Id parameter similar effects all other timer - support functions (see below). */ -void __TBITimerCtrl( int Id, int Wait ); - -/* This routine returns a 64-bit time stamp value that is initialised to zero - via a __TBITimerCtrl timer enabling call. */ -long long __TBITimeStamp( int Id ); - -/* To manage a periodic timer each period elapsed should be subracted from - the current timer value to attempt to set up the next timer trigger. The - Wait parameter should be a value in the recommended TBI_TIMERWAIT_* range. - The return value is the new aggregate value that the timer was updated to, - if this is less than zero then a timer trigger is guaranteed to be - generated after the number of ticks implied, if a positive result is - returned either itterative or step-wise corrective action must be taken to - resynchronise the timer and hence provoke a future timer trigger. */ -int __TBITimerAdd( int Id, int Wait ); - -/* String table search function, pStart is first entry to check or NULL, - pStr is string data to search for and MatchLen is either length of string - to compare for an exact match or negative length to compare for partial - match. */ -const TBISTR *__TBIFindStr( const TBISTR *pStart, - const char *pStr, int MatchLen ); - -/* String table translate function, pStr is text to translate and Len is - it's length. Value returned may not be a string pointer if the - translation value is really some other type, 64-bit alignment of the return - pointer is guaranteed so almost any type including a structure could be - located with this routine. */ -const void *__TBITransStr( const char *pStr, int Len ); - - - -/* Arbitrary physical memory access windows, use different Channels to avoid - conflict/thrashing within a single piece of code. */ -void *__TBIPhysAccess( int Channel, int PhysAddr, int Bytes ); -void __TBIPhysRelease( int Channel, void *pLinAddr ); - -#ifdef METAC_1_0 -/* Data cache function nullified because data cache is off */ -#define TBIDCACHE_FLUSH( pAddr ) -#define TBIDCACHE_PRELOAD( Type, pAddr ) ((Type) (pAddr)) -#define TBIDCACHE_REFRESH( Type, pAddr ) ((Type) (pAddr)) -#endif -#ifdef METAC_1_1 -/* To flush a single cache line from the data cache using a linear address */ -#define TBIDCACHE_FLUSH( pAddr ) ((volatile char *) \ - (((unsigned int) (pAddr))>>LINSYSLFLUSH_S))[0] = 0 - -extern void * __builtin_dcache_preload (void *); - -/* Try to ensure that the data at the address concerned is in the cache */ -#define TBIDCACHE_PRELOAD( Type, Addr ) \ - ((Type) __builtin_dcache_preload ((void *)(Addr))) - -extern void * __builtin_dcache_refresh (void *); - -/* Flush any old version of data from address and re-load a new copy */ -#define TBIDCACHE_REFRESH( Type, Addr ) __extension__ ({ \ - Type __addr = (Type)(Addr); \ - (void)__builtin_dcache_refresh ((void *)(((unsigned int)(__addr))>>6)); \ - __addr; }) - -#endif -#ifndef METAC_1_0 -#ifndef METAC_1_1 -/* Support for DCACHE builtin */ -extern void __builtin_dcache_flush (void *); - -/* To flush a single cache line from the data cache using a linear address */ -#define TBIDCACHE_FLUSH( Addr ) \ - __builtin_dcache_flush ((void *)(Addr)) - -extern void * __builtin_dcache_preload (void *); - -/* Try to ensure that the data at the address concerned is in the cache */ -#define TBIDCACHE_PRELOAD( Type, Addr ) \ - ((Type) __builtin_dcache_preload ((void *)(Addr))) - -extern void * __builtin_dcache_refresh (void *); - -/* Flush any old version of data from address and re-load a new copy */ -#define TBIDCACHE_REFRESH( Type, Addr ) \ - ((Type) __builtin_dcache_refresh ((void *)(Addr))) - -#endif -#endif - -/* Flush the MMCU cache */ -#define TBIMCACHE_FLUSH() { ((volatile int *) LINSYSCFLUSH_MMCU)[0] = 0; } - -#ifdef METAC_2_1 -/* Obtain the MMU table entry for the specified address */ -#define TBIMTABLE_LEAFDATA(ADDR) TBIXCACHE_RD((int)(ADDR) & (-1<<6)) - -#ifndef __ASSEMBLY__ -/* Obtain the full MMU table entry for the specified address */ -#define TBIMTABLE_DATA(ADDR) __extension__ ({ TBIRES __p; \ - __p.Val = TBIXCACHE_RL((int)(ADDR) & (-1<<6)); \ - __p; }) -#endif -#endif - -/* Combine a physical base address, and a linear address - * Internal use only - */ -#define _TBIMTABLE_LIN2PHYS(PHYS, LIN, LMASK) (void*)(((int)(PHYS)&0xFFFFF000)\ - +((int)(LIN)&(LMASK))) - -/* Convert a linear to a physical address */ -#define TBIMTABLE_LIN2PHYS(LEAFDATA, ADDR) \ - (((LEAFDATA) & CRLINPHY0_VAL_BIT) \ - ? _TBIMTABLE_LIN2PHYS(LEAFDATA, ADDR, 0x00000FFF) \ - : 0) - -/* Debug support - using external debugger or host */ -void __TBIDumpSegListEntries( void ); -void __TBILogF( const char *pFmt, ... ); -void __TBIAssert( const char *pFile, int LineNum, const char *pExp ); -void __TBICont( const char *pMsg, ... ); /* TBIAssert -> 'wait for continue' */ - -/* Array of signal name data for debug messages */ -extern const char __TBISigNames[]; -#endif /* ifndef __ASSEMBLY__ */ - - - -/* Scale of sub-strings in the __TBISigNames string list */ -#define TBI_SIGNAME_SCALE 4 -#define TBI_SIGNAME_SCALE_S 2 - -#define TBI_1_3 - -#ifdef TBI_1_3 - -#ifndef __ASSEMBLY__ -#define TBIXCACHE_RD(ADDR) __extension__ ({\ - void * __Addr = (void *)(ADDR); \ - int __Data; \ - __asm__ volatile ( "CACHERD\t%0,[%1+#0]" : \ - "=r" (__Data) : "r" (__Addr) ); \ - __Data; }) - -#define TBIXCACHE_RL(ADDR) __extension__ ({\ - void * __Addr = (void *)(ADDR); \ - long long __Data; \ - __asm__ volatile ( "CACHERL\t%0,%t0,[%1+#0]" : \ - "=d" (__Data) : "r" (__Addr) ); \ - __Data; }) - -#define TBIXCACHE_WD(ADDR, DATA) do {\ - void * __Addr = (void *)(ADDR); \ - int __Data = DATA; \ - __asm__ volatile ( "CACHEWD\t[%0+#0],%1" : \ - : "r" (__Addr), "r" (__Data) ); } while(0) - -#define TBIXCACHE_WL(ADDR, DATA) do {\ - void * __Addr = (void *)(ADDR); \ - long long __Data = DATA; \ - __asm__ volatile ( "CACHEWL\t[%0+#0],%1,%t1" : \ - : "r" (__Addr), "r" (__Data) ); } while(0) - -#ifdef TBI_4_0 - -#define TBICACHE_FLUSH_L1D_L2(ADDR) \ - TBIXCACHE_WD(ADDR, CACHEW_FLUSH_L1D_L2) -#define TBICACHE_WRITEBACK_L1D_L2(ADDR) \ - TBIXCACHE_WD(ADDR, CACHEW_WRITEBACK_L1D_L2) -#define TBICACHE_INVALIDATE_L1D(ADDR) \ - TBIXCACHE_WD(ADDR, CACHEW_INVALIDATE_L1D) -#define TBICACHE_INVALIDATE_L1D_L2(ADDR) \ - TBIXCACHE_WD(ADDR, CACHEW_INVALIDATE_L1D_L2) -#define TBICACHE_INVALIDATE_L1DTLB(ADDR) \ - TBIXCACHE_WD(ADDR, CACHEW_INVALIDATE_L1DTLB) -#define TBICACHE_INVALIDATE_L1I(ADDR) \ - TBIXCACHE_WD(ADDR, CACHEW_INVALIDATE_L1I) -#define TBICACHE_INVALIDATE_L1ITLB(ADDR) \ - TBIXCACHE_WD(ADDR, CACHEW_INVALIDATE_L1ITLB) - -#endif /* TBI_4_0 */ -#endif /* ifndef __ASSEMBLY__ */ - -/* - * Calculate linear PC value from real PC and Minim mode control, the LSB of - * the result returned indicates if address compression has occurred. - */ -#ifndef __ASSEMBLY__ -#define METAG_LINPC( PCVal ) (\ - ( (TBI_GETREG(TXPRIVEXT) & TXPRIVEXT_MINIMON_BIT) != 0 ) ? ( \ - ( ((PCVal) & 0x00900000) == 0x00900000 ) ? \ - (((PCVal) & 0xFFE00000) + (((PCVal) & 0x001FFFFC)>>1) + 1) : \ - ( ((PCVal) & 0x00800000) == 0x00000000 ) ? \ - (((PCVal) & 0xFF800000) + (((PCVal) & 0x007FFFFC)>>1) + 1) : \ - (PCVal) ) \ - : (PCVal) ) -#define METAG_LINPC_X2BIT 0x00000001 /* Make (Size>>1) if compressed */ - -/* Convert an arbitrary Linear address into a valid Minim PC or return 0 */ -#define METAG_PCMINIM( LinVal ) (\ - (((LinVal) & 0x00980000) == 0x00880000) ? \ - (((LinVal) & 0xFFE00000) + (((LinVal) & 0x000FFFFE)<<1)) : \ - (((LinVal) & 0x00C00000) == 0x00000000) ? \ - (((LinVal) & 0xFF800000) + (((LinVal) & 0x003FFFFE)<<1)) : 0 ) - -/* Reverse a METAG_LINPC conversion step to return the original PCVal */ -#define METAG_PCLIN( LinVal ) ( 0xFFFFFFFC & (\ - ( (LinVal & METAG_LINPC_X2BIT) != 0 ) ? METAG_PCMINIM( LinVal ) : \ - (LinVal) )) - -/* - * Flush the MMCU Table cache privately for each thread. On cores that do not - * support per-thread flushing it will flush all threads mapping data. - */ -#define TBIMCACHE_TFLUSH(Thread) do {\ - ((volatile int *)( LINSYSCFLUSH_TxMMCU_BASE + \ - (LINSYSCFLUSH_TxMMCU_STRIDE*(Thread)) ))[0] = 0; \ - } while(0) - -/* - * To flush a single linear-matched cache line from the code cache. In - * cases where Minim is possible the METAC_LINPC operation must be used - * to pre-process the address being flushed. - */ -#define TBIICACHE_FLUSH( pAddr ) TBIXCACHE_WD (pAddr, CACHEW_ICACHE_BIT) - -/* To flush a single linear-matched mapping from code/data MMU table cache */ -#define TBIMCACHE_AFLUSH( pAddr, SegType ) \ - TBIXCACHE_WD(pAddr, CACHEW_TLBFLUSH_BIT + ( \ - ((SegType) == TBID_SEGTYPE_TEXT) ? CACHEW_ICACHE_BIT : 0 )) - -/* - * To flush translation data corresponding to a range of addresses without - * using TBITCACHE_FLUSH to flush all of this threads translation data. It - * is necessary to know what stride (>= 4K) must be used to flush a specific - * region. - * - * For example direct mapped regions use the maximum page size (512K) which may - * mean that only one flush is needed to cover the sub-set of the direct - * mapped area used since it was setup. - * - * The function returns the stride on which flushes should be performed. - * - * If 0 is returned then the region is not subject to MMU caching, if -1 is - * returned then this indicates that only TBIMCACHE_TFLUSH can be used to - * flush the region concerned rather than TBIMCACHE_AFLUSH which this - * function is designed to support. - */ -int __TBIMMUCacheStride( const void *pStart, int Bytes ); - -/* - * This function will use the above lower level functions to achieve a MMU - * table data flush in an optimal a fashion as possible. On a system that - * supports linear address based caching this function will also call the - * code or data cache flush functions to maintain address/data coherency. - * - * SegType should be TBID_SEGTYPE_TEXT if the address range is for code or - * any other value such as TBID_SEGTYPE_DATA for data. If an area is - * used in both ways then call this function twice; once for each. - */ -void __TBIMMUCacheFlush( const void *pStart, int Bytes, int SegType ); - -/* - * Cached Core mode setup and flush functions allow one code and one data - * region of the corresponding global or local cache partion size to be - * locked into the corresponding cache memory. This prevents normal LRU - * logic discarding the code or data and avoids write-thru bandwidth in - * data areas. Code mappings are selected by specifying TBID_SEGTYPE_TEXT - * for SegType, otherwise data mappings are created. - * - * Mode supplied should always contain the VALID bit and WINx selection data. - * Data areas will be mapped read-only if the WRITE bit is not added. - * - * The address returned by the Opt function will either be the same as that - * passed in (if optimisation cannot be supported) or the base of the new core - * cached region in linear address space. The returned address must be passed - * into the End function to remove the mapping when required. If a non-core - * cached memory address is passed into it the End function has no effect. - * Note that the region accessed MUST be flushed from the appropriate cache - * before the End function is called to deliver correct operation. - */ -void *__TBICoreCacheOpt( const void *pStart, int Bytes, int SegType, int Mode ); -void __TBICoreCacheEnd( const void *pOpt, int Bytes, int SegType ); - -/* - * Optimise physical access channel and flush side effects before releasing - * the channel. If pStart is NULL the whole region must be flushed and this is - * done automatically by the channel release function if optimisation is - * enabled. Flushing the specific region that may have been accessed before - * release should optimises this process. On physically cached systems we do - * not flush the code/data caches only the MMU table data needs flushing. - */ -void __TBIPhysOptim( int Channel, int IMode, int DMode ); -void __TBIPhysFlush( int Channel, const void *pStart, int Bytes ); -#endif -#endif /* ifdef TBI_1_3 */ - -#endif /* _ASM_METAG_TBX_H_ */ diff --git a/arch/metag/include/asm/tcm.h b/arch/metag/include/asm/tcm.h deleted file mode 100644 index a0a4997e4b8a..000000000000 --- a/arch/metag/include/asm/tcm.h +++ /dev/null @@ -1,31 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_TCM_H__ -#define __ASM_TCM_H__ - -#include <linux/ioport.h> -#include <linux/list.h> - -struct tcm_allocation { - struct list_head list; - unsigned int tag; - unsigned long addr; - unsigned long size; -}; - -/* - * TCM memory region descriptor. - */ -struct tcm_region { - unsigned int tag; - struct resource res; -}; - -#define TCM_INVALID_TAG 0xffffffff - -unsigned long tcm_alloc(unsigned int tag, size_t len); -void tcm_free(unsigned int tag, unsigned long addr, size_t len); -unsigned int tcm_lookup_tag(unsigned long p); - -int tcm_add_region(struct tcm_region *reg); - -#endif diff --git a/arch/metag/include/asm/thread_info.h b/arch/metag/include/asm/thread_info.h deleted file mode 100644 index a1a9c7f5ca8c..000000000000 --- a/arch/metag/include/asm/thread_info.h +++ /dev/null @@ -1,141 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* thread_info.h: Meta low-level thread information - * - * Copyright (C) 2002 David Howells (dhowells@redhat.com) - * - Incorporating suggestions made by Linus Torvalds and Dave Miller - * - * Meta port by Imagination Technologies - */ - -#ifndef _ASM_THREAD_INFO_H -#define _ASM_THREAD_INFO_H - -#include <linux/compiler.h> -#include <asm/page.h> - -#ifndef __ASSEMBLY__ -#include <asm/processor.h> -#endif - -/* - * low level task data that entry.S needs immediate access to - * - this struct should fit entirely inside of one cache line - * - this struct shares the supervisor stack pages - * - if the contents of this structure are changed, the assembly constants must - * also be changed - */ -#ifndef __ASSEMBLY__ - -/* This must be 8 byte aligned so we can ensure stack alignment. */ -struct thread_info { - struct task_struct *task; /* main task structure */ - unsigned long flags; /* low level flags */ - unsigned long status; /* thread-synchronous flags */ - u32 cpu; /* current CPU */ - int preempt_count; /* 0 => preemptable, <0 => BUG */ - - mm_segment_t addr_limit; /* thread address space */ - - u8 supervisor_stack[0] __aligned(8); -}; - -#else /* !__ASSEMBLY__ */ - -#include <generated/asm-offsets.h> - -#endif - -#ifdef CONFIG_4KSTACKS -#define THREAD_SHIFT 12 -#else -#define THREAD_SHIFT 13 -#endif - -#if THREAD_SHIFT >= PAGE_SHIFT -#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT) -#else -#define THREAD_SIZE_ORDER 0 -#endif - -#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) - -#define STACK_WARN (THREAD_SIZE/8) -/* - * macros/functions for gaining access to the thread information structure - */ -#ifndef __ASSEMBLY__ - -#define INIT_THREAD_INFO(tsk) \ -{ \ - .task = &tsk, \ - .flags = 0, \ - .cpu = 0, \ - .preempt_count = INIT_PREEMPT_COUNT, \ - .addr_limit = KERNEL_DS, \ -} - -/* how to get the current stack pointer from C */ -register unsigned long current_stack_pointer asm("A0StP") __used; - -/* how to get the thread information struct from C */ -static inline struct thread_info *current_thread_info(void) -{ - return (struct thread_info *)(current_stack_pointer & - ~(THREAD_SIZE - 1)); -} - -#define __HAVE_ARCH_KSTACK_END -static inline int kstack_end(void *addr) -{ - return addr == (void *) (((unsigned long) addr & ~(THREAD_SIZE - 1)) - + sizeof(struct thread_info)); -} - -#endif - -/* - * thread information flags - * - these are process state flags that various assembly files may need to - * access - * - pending work-to-be-done flags are in LSW - * - other flags in MSW - */ -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -#define TIF_SIGPENDING 1 /* signal pending */ -#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -#define TIF_SINGLESTEP 3 /* restore singlestep on return to user - mode */ -#define TIF_SYSCALL_AUDIT 4 /* syscall auditing active */ -#define TIF_SECCOMP 5 /* secure computing */ -#define TIF_RESTORE_SIGMASK 6 /* restore signal mask in do_signal() */ -#define TIF_NOTIFY_RESUME 7 /* callback before returning to user */ -#define TIF_MEMDIE 8 /* is terminating due to OOM killer */ -#define TIF_SYSCALL_TRACEPOINT 9 /* syscall tracepoint instrumentation */ - - -#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) -#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) -#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) -#define _TIF_SECCOMP (1<<TIF_SECCOMP) -#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) -#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) -#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) - -/* work to do in syscall trace */ -#define _TIF_WORK_SYSCALL_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ - _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | \ - _TIF_SYSCALL_TRACEPOINT) - -/* work to do on any return to u-space */ -#define _TIF_ALLWORK_MASK (_TIF_SYSCALL_TRACE | _TIF_SIGPENDING | \ - _TIF_NEED_RESCHED | _TIF_SYSCALL_AUDIT | \ - _TIF_SINGLESTEP | _TIF_RESTORE_SIGMASK | \ - _TIF_NOTIFY_RESUME) - -/* work to do on interrupt/exception return */ -#define _TIF_WORK_MASK (_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \ - _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP)) - -#endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/metag/include/asm/tlb.h b/arch/metag/include/asm/tlb.h deleted file mode 100644 index fbe6ee91e8e7..000000000000 --- a/arch/metag/include/asm/tlb.h +++ /dev/null @@ -1,37 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_TLB_H -#define __ASM_METAG_TLB_H - -#include <asm/cacheflush.h> -#include <asm/page.h> - -/* Note, read http://lkml.org/lkml/2004/1/15/6 */ - -#ifdef CONFIG_METAG_META12 - -#define tlb_start_vma(tlb, vma) \ - do { \ - if (!tlb->fullmm) \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ - } while (0) - -#define tlb_end_vma(tlb, vma) \ - do { \ - if (!tlb->fullmm) \ - flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ - } while (0) - - -#else - -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) - -#endif - -#define __tlb_remove_tlb_entry(tlb, pte, addr) do { } while (0) -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - -#include <asm-generic/tlb.h> - -#endif diff --git a/arch/metag/include/asm/tlbflush.h b/arch/metag/include/asm/tlbflush.h deleted file mode 100644 index f3e5d99a3891..000000000000 --- a/arch/metag/include/asm/tlbflush.h +++ /dev/null @@ -1,78 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_TLBFLUSH_H -#define __ASM_METAG_TLBFLUSH_H - -#include <linux/io.h> -#include <linux/sched.h> -#include <asm/metag_mem.h> -#include <asm/pgalloc.h> - -/* - * TLB flushing: - * - * - flush_tlb() flushes the current mm struct TLBs - * - flush_tlb_all() flushes all processes TLBs - * - flush_tlb_mm(mm) flushes the specified mm context TLB's - * - flush_tlb_page(vma, vmaddr) flushes one page - * - flush_tlb_range(mm, start, end) flushes a range of pages - * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages - * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables - * - * FIXME: Meta 2 can flush single TLB entries. - * - */ - -#if defined(CONFIG_METAG_META21) && !defined(CONFIG_SMP) -static inline void __flush_tlb(void) -{ - /* flush TLB entries for just the current hardware thread */ - int thread = hard_processor_id(); - metag_out32(0, (LINSYSCFLUSH_TxMMCU_BASE + - LINSYSCFLUSH_TxMMCU_STRIDE * thread)); -} -#else -static inline void __flush_tlb(void) -{ - /* flush TLB entries for all hardware threads */ - metag_out32(0, LINSYSCFLUSH_MMCU); -} -#endif /* defined(CONFIG_METAG_META21) && !defined(CONFIG_SMP) */ - -#define flush_tlb() __flush_tlb() - -#define flush_tlb_all() __flush_tlb() - -#define local_flush_tlb_all() __flush_tlb() - -static inline void flush_tlb_mm(struct mm_struct *mm) -{ - if (mm == current->active_mm) - __flush_tlb(); -} - -static inline void flush_tlb_page(struct vm_area_struct *vma, - unsigned long addr) -{ - flush_tlb_mm(vma->vm_mm); -} - -static inline void flush_tlb_range(struct vm_area_struct *vma, - unsigned long start, unsigned long end) -{ - flush_tlb_mm(vma->vm_mm); -} - -static inline void flush_tlb_pgtables(struct mm_struct *mm, - unsigned long start, unsigned long end) -{ - flush_tlb_mm(mm); -} - -static inline void flush_tlb_kernel_range(unsigned long start, - unsigned long end) -{ - flush_tlb_all(); -} - -#endif /* __ASM_METAG_TLBFLUSH_H */ - diff --git a/arch/metag/include/asm/topology.h b/arch/metag/include/asm/topology.h deleted file mode 100644 index df0d9e6b7f12..000000000000 --- a/arch/metag/include/asm/topology.h +++ /dev/null @@ -1,28 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_METAG_TOPOLOGY_H -#define _ASM_METAG_TOPOLOGY_H - -#ifdef CONFIG_NUMA - -#define cpu_to_node(cpu) ((void)(cpu), 0) - -#define cpumask_of_node(node) ((void)node, cpu_online_mask) - -#define pcibus_to_node(bus) ((void)(bus), -1) -#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ - cpu_all_mask : \ - cpumask_of_node(pcibus_to_node(bus))) - -#endif - -#define mc_capable() (1) - -const struct cpumask *cpu_coregroup_mask(unsigned int cpu); - -extern cpumask_t cpu_core_map[NR_CPUS]; - -#define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) - -#include <asm-generic/topology.h> - -#endif /* _ASM_METAG_TOPOLOGY_H */ diff --git a/arch/metag/include/asm/traps.h b/arch/metag/include/asm/traps.h deleted file mode 100644 index ac808740bd84..000000000000 --- a/arch/metag/include/asm/traps.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) 2005,2008 Imagination Technologies - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#ifndef _METAG_TBIVECTORS_H -#define _METAG_TBIVECTORS_H - -#ifndef __ASSEMBLY__ - -#include <asm/tbx.h> - -typedef TBIRES (*kick_irq_func_t)(TBIRES, int, int, int, PTBI, int *); - -extern TBIRES kick_handler(TBIRES, int, int, int, PTBI); -struct kick_irq_handler { - struct list_head list; - kick_irq_func_t func; -}; - -extern void kick_register_func(struct kick_irq_handler *); -extern void kick_unregister_func(struct kick_irq_handler *); - -extern void head_end(TBIRES, unsigned long); -extern void restart_critical_section(TBIRES State); -extern TBIRES tail_end_sys(TBIRES, int, int *); -static inline TBIRES tail_end(TBIRES state) -{ - return tail_end_sys(state, -1, NULL); -} - -DECLARE_PER_CPU(PTBI, pTBI); -extern PTBI pTBI_get(unsigned int); - -extern int ret_from_fork(TBIRES arg); - -extern int do_page_fault(struct pt_regs *regs, unsigned long address, - unsigned int write_access, unsigned int trapno); - -extern TBIRES __TBIUnExpXXX(TBIRES State, int SigNum, int Triggers, int Inst, - PTBI pTBI); - -#endif - -#endif /* _METAG_TBIVECTORS_H */ diff --git a/arch/metag/include/asm/uaccess.h b/arch/metag/include/asm/uaccess.h deleted file mode 100644 index a5311eb36e32..000000000000 --- a/arch/metag/include/asm/uaccess.h +++ /dev/null @@ -1,213 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __METAG_UACCESS_H -#define __METAG_UACCESS_H - -/* - * User space memory access functions - */ - -/* - * The fs value determines whether argument validity checking should be - * performed or not. If get_fs() == USER_DS, checking is performed, with - * get_fs() == KERNEL_DS, checking is bypassed. - * - * For historical reasons, these macros are grossly misnamed. - */ - -#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) - -#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFF) -#define USER_DS MAKE_MM_SEG(PAGE_OFFSET) - -#define get_ds() (KERNEL_DS) -#define get_fs() (current_thread_info()->addr_limit) -#define set_fs(x) (current_thread_info()->addr_limit = (x)) - -#define segment_eq(a, b) ((a).seg == (b).seg) - -static inline int __access_ok(unsigned long addr, unsigned long size) -{ - /* - * Allow access to the user mapped memory area, but not the system area - * before it. The check extends to the top of the address space when - * kernel access is allowed (there's no real reason to user copy to the - * system area in any case). - */ - if (likely(addr >= META_MEMORY_BASE && addr < get_fs().seg && - size <= get_fs().seg - addr)) - return true; - /* - * Explicitly allow NULL pointers here. Parts of the kernel such - * as readv/writev use access_ok to validate pointers, but want - * to allow NULL pointers for various reasons. NULL pointers are - * safe to allow through because the first page is not mappable on - * Meta. - */ - if (!addr) - return true; - /* Allow access to core code memory area... */ - if (addr >= LINCORE_CODE_BASE && addr <= LINCORE_CODE_LIMIT && - size <= LINCORE_CODE_LIMIT + 1 - addr) - return true; - /* ... but no other areas. */ - return false; -} - -#define access_ok(type, addr, size) __access_ok((unsigned long)(addr), \ - (unsigned long)(size)) - -#include <asm/extable.h> - -/* - * These are the main single-value transfer routines. They automatically - * use the right size if we just have the right pointer type. - */ - -#define put_user(x, ptr) \ - __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) -#define __put_user(x, ptr) \ - __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) - -extern void __put_user_bad(void); - -#define __put_user_nocheck(x, ptr, size) \ -({ \ - long __pu_err; \ - __put_user_size((x), (ptr), (size), __pu_err); \ - __pu_err; \ -}) - -#define __put_user_check(x, ptr, size) \ -({ \ - long __pu_err = -EFAULT; \ - __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ - if (access_ok(VERIFY_WRITE, __pu_addr, size)) \ - __put_user_size((x), __pu_addr, (size), __pu_err); \ - __pu_err; \ -}) - -extern long __put_user_asm_b(unsigned int x, void __user *addr); -extern long __put_user_asm_w(unsigned int x, void __user *addr); -extern long __put_user_asm_d(unsigned int x, void __user *addr); -extern long __put_user_asm_l(unsigned long long x, void __user *addr); - -#define __put_user_size(x, ptr, size, retval) \ -do { \ - retval = 0; \ - switch (size) { \ - case 1: \ - retval = __put_user_asm_b((__force unsigned int)x, ptr);\ - break; \ - case 2: \ - retval = __put_user_asm_w((__force unsigned int)x, ptr);\ - break; \ - case 4: \ - retval = __put_user_asm_d((__force unsigned int)x, ptr);\ - break; \ - case 8: \ - retval = __put_user_asm_l((__force unsigned long long)x,\ - ptr); \ - break; \ - default: \ - __put_user_bad(); \ - } \ -} while (0) - -#define get_user(x, ptr) \ - __get_user_check((x), (ptr), sizeof(*(ptr))) -#define __get_user(x, ptr) \ - __get_user_nocheck((x), (ptr), sizeof(*(ptr))) - -extern long __get_user_bad(void); - -#define __get_user_nocheck(x, ptr, size) \ -({ \ - long __gu_err; \ - long long __gu_val; \ - __get_user_size(__gu_val, (ptr), (size), __gu_err); \ - (x) = (__force __typeof__(*(ptr)))__gu_val; \ - __gu_err; \ -}) - -#define __get_user_check(x, ptr, size) \ -({ \ - long __gu_err = -EFAULT; \ - long long __gu_val = 0; \ - const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ - if (access_ok(VERIFY_READ, __gu_addr, size)) \ - __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ - (x) = (__force __typeof__(*(ptr)))__gu_val; \ - __gu_err; \ -}) - -extern unsigned char __get_user_asm_b(const void __user *addr, long *err); -extern unsigned short __get_user_asm_w(const void __user *addr, long *err); -extern unsigned int __get_user_asm_d(const void __user *addr, long *err); -extern unsigned long long __get_user_asm_l(const void __user *addr, long *err); - -#define __get_user_size(x, ptr, size, retval) \ -do { \ - retval = 0; \ - switch (size) { \ - case 1: \ - x = __get_user_asm_b(ptr, &retval); break; \ - case 2: \ - x = __get_user_asm_w(ptr, &retval); break; \ - case 4: \ - x = __get_user_asm_d(ptr, &retval); break; \ - case 8: \ - x = __get_user_asm_l(ptr, &retval); break; \ - default: \ - (x) = __get_user_bad(); \ - } \ -} while (0) - -/* - * Copy a null terminated string from userspace. - * - * Must return: - * -EFAULT for an exception - * count if we hit the buffer limit - * bytes copied if we hit a null byte - * (without the null byte) - */ - -extern long __must_check __strncpy_from_user(char *dst, const char __user *src, - long count); - -static inline long -strncpy_from_user(char *dst, const char __user *src, long count) -{ - if (!access_ok(VERIFY_READ, src, 1)) - return -EFAULT; - return __strncpy_from_user(dst, src, count); -} -/* - * Return the size of a string (including the ending 0) - * - * Return 0 on exception, a value greater than N if too long - */ -extern long __must_check strnlen_user(const char __user *src, long count); - -extern unsigned long raw_copy_from_user(void *to, const void __user *from, - unsigned long n); -extern unsigned long raw_copy_to_user(void __user *to, const void *from, - unsigned long n); - -/* - * Zero Userspace - */ - -extern unsigned long __must_check __do_clear_user(void __user *to, - unsigned long n); - -static inline unsigned long clear_user(void __user *to, unsigned long n) -{ - if (access_ok(VERIFY_WRITE, to, n)) - return __do_clear_user(to, n); - return n; -} - -#define __clear_user(to, n) __do_clear_user(to, n) - -#endif /* _METAG_UACCESS_H */ diff --git a/arch/metag/include/asm/unistd.h b/arch/metag/include/asm/unistd.h deleted file mode 100644 index 32955a18fb32..000000000000 --- a/arch/metag/include/asm/unistd.h +++ /dev/null @@ -1,12 +0,0 @@ -/* - * Copyright (C) 2012 Imagination Technologies Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <uapi/asm/unistd.h> - -#define __ARCH_WANT_SYS_CLONE diff --git a/arch/metag/include/asm/user_gateway.h b/arch/metag/include/asm/user_gateway.h deleted file mode 100644 index cf2392b95a56..000000000000 --- a/arch/metag/include/asm/user_gateway.h +++ /dev/null @@ -1,45 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C) 2010 Imagination Technologies - */ - -#ifndef __ASM_METAG_USER_GATEWAY_H -#define __ASM_METAG_USER_GATEWAY_H - -#include <asm/page.h> - -/* Page of kernel code accessible to userspace. */ -#define USER_GATEWAY_PAGE 0x6ffff000 -/* Offset of TLS pointer array in gateway page. */ -#define USER_GATEWAY_TLS 0x100 - -#ifndef __ASSEMBLY__ - -extern char __user_gateway_start; -extern char __user_gateway_end; - -/* Kernel mapping of the gateway page. */ -extern void *gateway_page; - -static inline void set_gateway_tls(void __user *tls_ptr) -{ - void **gateway_tls = (void **)(gateway_page + USER_GATEWAY_TLS + - hard_processor_id() * 4); - - *gateway_tls = (__force void *)tls_ptr; -#ifdef CONFIG_METAG_META12 - /* Avoid cache aliases on virtually tagged cache. */ - __builtin_dcache_flush((void *)USER_GATEWAY_PAGE + USER_GATEWAY_TLS + - hard_processor_id() * sizeof(void *)); -#endif -} - -extern int __kuser_get_tls(void); -extern char *__kuser_get_tls_end[]; - -extern int __kuser_cmpxchg(int, int, unsigned long *); -extern char *__kuser_cmpxchg_end[]; - -#endif - -#endif diff --git a/arch/metag/include/uapi/asm/Kbuild b/arch/metag/include/uapi/asm/Kbuild deleted file mode 100644 index f9eaf07d29f8..000000000000 --- a/arch/metag/include/uapi/asm/Kbuild +++ /dev/null @@ -1,31 +0,0 @@ -# UAPI Header export list -include include/uapi/asm-generic/Kbuild.asm - -generic-y += auxvec.h -generic-y += bitsperlong.h -generic-y += bpf_perf_event.h -generic-y += errno.h -generic-y += fcntl.h -generic-y += ioctl.h -generic-y += ioctls.h -generic-y += ipcbuf.h -generic-y += kvm_para.h -generic-y += mman.h -generic-y += msgbuf.h -generic-y += param.h -generic-y += poll.h -generic-y += posix_types.h -generic-y += resource.h -generic-y += sembuf.h -generic-y += setup.h -generic-y += shmbuf.h -generic-y += shmparam.h -generic-y += signal.h -generic-y += socket.h -generic-y += sockios.h -generic-y += stat.h -generic-y += statfs.h -generic-y += termbits.h -generic-y += termios.h -generic-y += types.h -generic-y += ucontext.h diff --git a/arch/metag/include/uapi/asm/byteorder.h b/arch/metag/include/uapi/asm/byteorder.h deleted file mode 100644 index e5e03ff7e20d..000000000000 --- a/arch/metag/include/uapi/asm/byteorder.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <linux/byteorder/little_endian.h> diff --git a/arch/metag/include/uapi/asm/ech.h b/arch/metag/include/uapi/asm/ech.h deleted file mode 100644 index 1e09f1ea4f7f..000000000000 --- a/arch/metag/include/uapi/asm/ech.h +++ /dev/null @@ -1,16 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _UAPI_METAG_ECH_H -#define _UAPI_METAG_ECH_H - -/* - * These bits can be set in the top half of the D0.8 register when DSP context - * switching is enabled, in order to support partial DSP context save/restore. - */ - -#define TBICTX_XEXT_BIT 0x1000 /* Enable extended context save */ -#define TBICTX_XTDP_BIT 0x0800 /* DSP accumulators/RAM/templates */ -#define TBICTX_XHL2_BIT 0x0400 /* Hardware loops */ -#define TBICTX_XAXX_BIT 0x0200 /* Extended AX registers (A*.4-7) */ -#define TBICTX_XDX8_BIT 0x0100 /* Extended DX registers (D*.8-15) */ - -#endif /* _UAPI_METAG_ECH_H */ diff --git a/arch/metag/include/uapi/asm/ptrace.h b/arch/metag/include/uapi/asm/ptrace.h deleted file mode 100644 index 8ad9daa841c3..000000000000 --- a/arch/metag/include/uapi/asm/ptrace.h +++ /dev/null @@ -1,114 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _UAPI_METAG_PTRACE_H -#define _UAPI_METAG_PTRACE_H - -#ifndef __ASSEMBLY__ - -/* - * These are the layouts of the regsets returned by the GETREGSET ptrace call - */ - -/* user_gp_regs::status */ - -/* CBMarker bit (indicates catch state / catch replay) */ -#define USER_GP_REGS_STATUS_CATCH_BIT (1 << 22) -#define USER_GP_REGS_STATUS_CATCH_S 22 -/* LSM_STEP field (load/store multiple step) */ -#define USER_GP_REGS_STATUS_LSM_STEP_BITS (0x7 << 8) -#define USER_GP_REGS_STATUS_LSM_STEP_S 8 -/* SCC bit (indicates split 16x16 condition flags) */ -#define USER_GP_REGS_STATUS_SCC_BIT (1 << 4) -#define USER_GP_REGS_STATUS_SCC_S 4 - -/* normal condition flags */ -/* CF_Z bit (Zero flag) */ -#define USER_GP_REGS_STATUS_CF_Z_BIT (1 << 3) -#define USER_GP_REGS_STATUS_CF_Z_S 3 -/* CF_N bit (Negative flag) */ -#define USER_GP_REGS_STATUS_CF_N_BIT (1 << 2) -#define USER_GP_REGS_STATUS_CF_N_S 2 -/* CF_V bit (oVerflow flag) */ -#define USER_GP_REGS_STATUS_CF_V_BIT (1 << 1) -#define USER_GP_REGS_STATUS_CF_V_S 1 -/* CF_C bit (Carry flag) */ -#define USER_GP_REGS_STATUS_CF_C_BIT (1 << 0) -#define USER_GP_REGS_STATUS_CF_C_S 0 - -/* split 16x16 condition flags */ -/* SCF_LZ bit (Low Zero flag) */ -#define USER_GP_REGS_STATUS_SCF_LZ_BIT (1 << 3) -#define USER_GP_REGS_STATUS_SCF_LZ_S 3 -/* SCF_HZ bit (High Zero flag) */ -#define USER_GP_REGS_STATUS_SCF_HZ_BIT (1 << 2) -#define USER_GP_REGS_STATUS_SCF_HZ_S 2 -/* SCF_HC bit (High Carry flag) */ -#define USER_GP_REGS_STATUS_SCF_HC_BIT (1 << 1) -#define USER_GP_REGS_STATUS_SCF_HC_S 1 -/* SCF_LC bit (Low Carry flag) */ -#define USER_GP_REGS_STATUS_SCF_LC_BIT (1 << 0) -#define USER_GP_REGS_STATUS_SCF_LC_S 0 - -/** - * struct user_gp_regs - User general purpose registers - * @dx: GP data unit regs (dx[reg][unit] = D{unit:0-1}.{reg:0-7}) - * @ax: GP address unit regs (ax[reg][unit] = A{unit:0-1}.{reg:0-3}) - * @pc: PC register - * @status: TXSTATUS register (condition flags, LSM_STEP etc) - * @rpt: TXRPT registers (branch repeat counter) - * @bpobits: TXBPOBITS register ("branch prediction other" bits) - * @mode: TXMODE register - * @_pad1: Reserved padding to make sizeof obviously 64bit aligned - * - * This is the user-visible general purpose register state structure. - * - * It can be accessed through PTRACE_GETREGSET with NT_PRSTATUS. - * - * It is also used in the signal context. - */ -struct user_gp_regs { - unsigned long dx[8][2]; - unsigned long ax[4][2]; - unsigned long pc; - unsigned long status; - unsigned long rpt; - unsigned long bpobits; - unsigned long mode; - unsigned long _pad1; -}; - -/** - * struct user_cb_regs - User catch buffer registers - * @flags: TXCATCH0 register (fault flags) - * @addr: TXCATCH1 register (fault address) - * @data: TXCATCH2 and TXCATCH3 registers (low and high data word) - * - * This is the user-visible catch buffer register state structure containing - * information about a failed memory access, and allowing the access to be - * modified and replayed. - * - * It can be accessed through PTRACE_GETREGSET with NT_METAG_CBUF. - */ -struct user_cb_regs { - unsigned long flags; - unsigned long addr; - unsigned long long data; -}; - -/** - * struct user_rp_state - User read pipeline state - * @entries: Read pipeline entries - * @mask: Mask of valid pipeline entries (RPMask from TXDIVTIME register) - * - * This is the user-visible read pipeline state structure containing the entries - * currently in the read pipeline and the mask of valid entries. - * - * It can be accessed through PTRACE_GETREGSET with NT_METAG_RPIPE. - */ -struct user_rp_state { - unsigned long long entries[6]; - unsigned long mask; -}; - -#endif /* __ASSEMBLY__ */ - -#endif /* _UAPI_METAG_PTRACE_H */ diff --git a/arch/metag/include/uapi/asm/sigcontext.h b/arch/metag/include/uapi/asm/sigcontext.h deleted file mode 100644 index ac7e1f28d584..000000000000 --- a/arch/metag/include/uapi/asm/sigcontext.h +++ /dev/null @@ -1,32 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_METAG_SIGCONTEXT_H -#define _ASM_METAG_SIGCONTEXT_H - -#include <asm/ptrace.h> - -/* - * In a sigcontext structure we need to store the active state of the - * user process so that it does not get trashed when we call the signal - * handler. That not really the same as a user context that we are - * going to store on syscall etc. - */ -struct sigcontext { - struct user_gp_regs regs; /* needs to be first */ - - /* - * Catch registers describing a memory fault. - * If USER_GP_REGS_STATUS_CATCH_BIT is set in regs.status then catch - * buffers have been saved and will be replayed on sigreturn. - * Clear that bit to discard the catch state instead of replaying it. - */ - struct user_cb_regs cb; - - /* - * Read pipeline state. This will get restored on sigreturn. - */ - struct user_rp_state rp; - - unsigned long oldmask; -}; - -#endif diff --git a/arch/metag/include/uapi/asm/siginfo.h b/arch/metag/include/uapi/asm/siginfo.h deleted file mode 100644 index 9a3f6cde9487..000000000000 --- a/arch/metag/include/uapi/asm/siginfo.h +++ /dev/null @@ -1,16 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _METAG_SIGINFO_H -#define _METAG_SIGINFO_H - -#define __ARCH_SI_TRAPNO - -#include <asm-generic/siginfo.h> - -/* - * SIGFPE si_codes - */ -#ifdef __KERNEL__ -#define FPE_FIXME 0 /* Broken dup of SI_USER */ -#endif /* __KERNEL__ */ - -#endif diff --git a/arch/metag/include/uapi/asm/swab.h b/arch/metag/include/uapi/asm/swab.h deleted file mode 100644 index 30d696fcc237..000000000000 --- a/arch/metag/include/uapi/asm/swab.h +++ /dev/null @@ -1,27 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef __ASM_METAG_SWAB_H -#define __ASM_METAG_SWAB_H - -#include <linux/compiler.h> -#include <linux/types.h> -#include <asm-generic/swab.h> - -static inline __attribute_const__ __u16 __arch_swab16(__u16 x) -{ - return __builtin_metag_bswaps(x); -} -#define __arch_swab16 __arch_swab16 - -static inline __attribute_const__ __u32 __arch_swab32(__u32 x) -{ - return __builtin_metag_bswap(x); -} -#define __arch_swab32 __arch_swab32 - -static inline __attribute_const__ __u64 __arch_swab64(__u64 x) -{ - return __builtin_metag_bswapll(x); -} -#define __arch_swab64 __arch_swab64 - -#endif /* __ASM_METAG_SWAB_H */ diff --git a/arch/metag/include/uapi/asm/unistd.h b/arch/metag/include/uapi/asm/unistd.h deleted file mode 100644 index 9f72c4cfcfb5..000000000000 --- a/arch/metag/include/uapi/asm/unistd.h +++ /dev/null @@ -1,24 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* - * Copyright (C) 2012 Imagination Technologies Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#define __ARCH_WANT_RENAMEAT - -/* Use the standard ABI for syscalls. */ -#include <asm-generic/unistd.h> - -/* metag-specific syscalls. */ -#define __NR_metag_setglobalbit (__NR_arch_specific_syscall + 1) -__SYSCALL(__NR_metag_setglobalbit, sys_metag_setglobalbit) -#define __NR_metag_set_fpu_flags (__NR_arch_specific_syscall + 2) -__SYSCALL(__NR_metag_set_fpu_flags, sys_metag_set_fpu_flags) -#define __NR_metag_set_tls (__NR_arch_specific_syscall + 3) -__SYSCALL(__NR_metag_set_tls, sys_metag_set_tls) -#define __NR_metag_get_tls (__NR_arch_specific_syscall + 4) -__SYSCALL(__NR_metag_get_tls, sys_metag_get_tls) |