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-rw-r--r--arch/parisc/Kconfig.debug2
-rw-r--r--arch/parisc/boot/compressed/misc.c10
-rw-r--r--arch/parisc/include/asm/dma.h2
-rw-r--r--arch/parisc/include/asm/ftrace.h4
-rw-r--r--arch/parisc/include/asm/spinlock.h2
-rw-r--r--arch/parisc/include/asm/spinlock_types.h6
-rw-r--r--arch/parisc/kernel/firmware.c8
-rw-r--r--arch/parisc/kernel/ftrace.c2
-rw-r--r--arch/parisc/kernel/parisc_ksyms.c7
-rw-r--r--arch/parisc/kernel/pci-dma.c4
-rw-r--r--arch/parisc/kernel/pdt.c4
-rw-r--r--arch/parisc/kernel/perf.c2
-rw-r--r--arch/parisc/kernel/processor.c1
-rw-r--r--arch/parisc/kernel/setup.c48
-rw-r--r--arch/parisc/kernel/signal.c2
-rw-r--r--arch/parisc/kernel/syscall.S23
-rw-r--r--arch/parisc/kernel/unaligned.c1
-rw-r--r--arch/parisc/lib/ucmpdi2.c3
-rw-r--r--arch/parisc/mm/fault.c50
-rw-r--r--arch/parisc/mm/init.c4
-rw-r--r--arch/parisc/mm/ioremap.c9
-rw-r--r--drivers/parisc/sba_iommu.c6
22 files changed, 88 insertions, 112 deletions
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 1401e4c5fe5f..bf2b21b96f0b 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -2,7 +2,7 @@
#
config LIGHTWEIGHT_SPINLOCK_CHECK
bool "Enable lightweight spinlock checks"
- depends on SMP && !DEBUG_SPINLOCK
+ depends on DEBUG_KERNEL && SMP && !DEBUG_SPINLOCK
default y
help
Add checks with low performance impact to the spinlock functions
diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c
index 7ee49f5881d1..d389359e22ac 100644
--- a/arch/parisc/boot/compressed/misc.c
+++ b/arch/parisc/boot/compressed/misc.c
@@ -117,7 +117,7 @@ char *strchr(const char *s, int c)
return NULL;
}
-int puts(const char *s)
+static int puts(const char *s)
{
const char *nuline = s;
@@ -172,7 +172,7 @@ static int print_num(unsigned long num, int base)
return 0;
}
-int printf(const char *fmt, ...)
+static int printf(const char *fmt, ...)
{
va_list args;
int i = 0;
@@ -204,13 +204,13 @@ void abort(void)
}
#undef malloc
-void *malloc(size_t size)
+static void *malloc(size_t size)
{
return malloc_gzip(size);
}
#undef free
-void free(void *ptr)
+static void free(void *ptr)
{
return free_gzip(ptr);
}
@@ -278,7 +278,7 @@ static void parse_elf(void *output)
free(phdrs);
}
-unsigned long decompress_kernel(unsigned int started_wide,
+asmlinkage unsigned long __visible decompress_kernel(unsigned int started_wide,
unsigned int command_line,
const unsigned int rd_start,
const unsigned int rd_end)
diff --git a/arch/parisc/include/asm/dma.h b/arch/parisc/include/asm/dma.h
index 9e8c101de902..582fb5d1a5d5 100644
--- a/arch/parisc/include/asm/dma.h
+++ b/arch/parisc/include/asm/dma.h
@@ -14,6 +14,8 @@
#define dma_outb outb
#define dma_inb inb
+extern unsigned long pcxl_dma_start;
+
/*
** DMA_CHUNK_SIZE is used by the SCSI mid-layer to break up
** (or rather not merge) DMAs into manageable chunks.
diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index a7cf0d05ccf4..f1cc1ee3a647 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -12,6 +12,10 @@ extern void mcount(void);
extern unsigned long sys_call_table[];
extern unsigned long return_address(unsigned int);
+struct ftrace_regs;
+extern void ftrace_function_trampoline(unsigned long parent,
+ unsigned long self_addr, unsigned long org_sp_gr3,
+ struct ftrace_regs *fregs);
#ifdef CONFIG_DYNAMIC_FTRACE
extern void ftrace_caller(void);
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index edfcb9858bcb..0b326e52255e 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -7,8 +7,6 @@
#include <asm/processor.h>
#include <asm/spinlock_types.h>
-#define SPINLOCK_BREAK_INSN 0x0000c006 /* break 6,6 */
-
static inline void arch_spin_val_check(int lock_val)
{
if (IS_ENABLED(CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK))
diff --git a/arch/parisc/include/asm/spinlock_types.h b/arch/parisc/include/asm/spinlock_types.h
index d65934079ebd..efd06a897c6a 100644
--- a/arch/parisc/include/asm/spinlock_types.h
+++ b/arch/parisc/include/asm/spinlock_types.h
@@ -4,6 +4,10 @@
#define __ARCH_SPIN_LOCK_UNLOCKED_VAL 0x1a46
+#define SPINLOCK_BREAK_INSN 0x0000c006 /* break 6,6 */
+
+#ifndef __ASSEMBLY__
+
typedef struct {
#ifdef CONFIG_PA20
volatile unsigned int slock;
@@ -27,6 +31,8 @@ typedef struct {
volatile unsigned int counter;
} arch_rwlock_t;
+#endif /* __ASSEMBLY__ */
+
#define __ARCH_RW_LOCK_UNLOCKED__ 0x01000000
#define __ARCH_RW_LOCK_UNLOCKED { .lock_mutex = __ARCH_SPIN_LOCK_UNLOCKED, \
.counter = __ARCH_RW_LOCK_UNLOCKED__ }
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 6d1c781eb1db..8f37e75f2fb9 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -74,8 +74,8 @@
static DEFINE_SPINLOCK(pdc_lock);
#endif
-unsigned long pdc_result[NUM_PDC_RESULT] __aligned(8);
-unsigned long pdc_result2[NUM_PDC_RESULT] __aligned(8);
+static unsigned long pdc_result[NUM_PDC_RESULT] __aligned(8);
+static unsigned long pdc_result2[NUM_PDC_RESULT] __aligned(8);
#ifdef CONFIG_64BIT
#define WIDE_FIRMWARE 0x1
@@ -334,7 +334,7 @@ int __pdc_cpu_rendezvous(void)
/**
* pdc_cpu_rendezvous_lock - Lock PDC while transitioning to rendezvous state
*/
-void pdc_cpu_rendezvous_lock(void)
+void pdc_cpu_rendezvous_lock(void) __acquires(&pdc_lock)
{
spin_lock(&pdc_lock);
}
@@ -342,7 +342,7 @@ void pdc_cpu_rendezvous_lock(void)
/**
* pdc_cpu_rendezvous_unlock - Unlock PDC after reaching rendezvous state
*/
-void pdc_cpu_rendezvous_unlock(void)
+void pdc_cpu_rendezvous_unlock(void) __releases(&pdc_lock)
{
spin_unlock(&pdc_lock);
}
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
index 4d392e4ed358..d1defb9ede70 100644
--- a/arch/parisc/kernel/ftrace.c
+++ b/arch/parisc/kernel/ftrace.c
@@ -53,7 +53,7 @@ static void __hot prepare_ftrace_return(unsigned long *parent,
static ftrace_func_t ftrace_func;
-void notrace __hot ftrace_function_trampoline(unsigned long parent,
+asmlinkage void notrace __hot ftrace_function_trampoline(unsigned long parent,
unsigned long self_addr,
unsigned long org_sp_gr3,
struct ftrace_regs *fregs)
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 00297e8e1c88..6f0c92e8149d 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/syscalls.h>
+#include <linux/libgcc.h>
#include <linux/string.h>
EXPORT_SYMBOL(memset);
@@ -92,12 +93,6 @@ EXPORT_SYMBOL($$divI_12);
EXPORT_SYMBOL($$divI_14);
EXPORT_SYMBOL($$divI_15);
-extern void __ashrdi3(void);
-extern void __ashldi3(void);
-extern void __lshrdi3(void);
-extern void __muldi3(void);
-extern void __ucmpdi2(void);
-
EXPORT_SYMBOL(__ashrdi3);
EXPORT_SYMBOL(__ashldi3);
EXPORT_SYMBOL(__lshrdi3);
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 3f6b507970eb..bf9f192c826e 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -39,7 +39,7 @@ static struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
static unsigned long pcxl_used_bytes __read_mostly;
static unsigned long pcxl_used_pages __read_mostly;
-extern unsigned long pcxl_dma_start; /* Start of pcxl dma mapping area */
+unsigned long pcxl_dma_start __ro_after_init; /* pcxl dma mapping area start */
static DEFINE_SPINLOCK(pcxl_res_lock);
static char *pcxl_res_map;
static int pcxl_res_hint;
@@ -381,7 +381,7 @@ pcxl_dma_init(void)
pcxl_res_map = (char *)__get_free_pages(GFP_KERNEL,
get_order(pcxl_res_size));
memset(pcxl_res_map, 0, pcxl_res_size);
- proc_gsc_root = proc_mkdir("gsc", NULL);
+ proc_gsc_root = proc_mkdir("bus/gsc", NULL);
if (!proc_gsc_root)
printk(KERN_WARNING
"pcxl_dma_init: Unable to create gsc /proc dir entry\n");
diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index 0d24735bd918..0f9b3b5914cf 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -354,10 +354,8 @@ static int __init pdt_initcall(void)
return -ENODEV;
kpdtd_task = kthread_run(pdt_mainloop, NULL, "kpdtd");
- if (IS_ERR(kpdtd_task))
- return PTR_ERR(kpdtd_task);
- return 0;
+ return PTR_ERR_OR_ZERO(kpdtd_task);
}
late_initcall(pdt_initcall);
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 90b04d8af212..b0f0816879df 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -57,7 +57,7 @@ struct rdr_tbl_ent {
static int perf_processor_interface __read_mostly = UNKNOWN_INTF;
static int perf_enabled __read_mostly;
static DEFINE_SPINLOCK(perf_lock);
-struct parisc_device *cpu_device __read_mostly;
+static struct parisc_device *cpu_device __read_mostly;
/* RDRs to write for PCX-W */
static const int perf_rdrs_W[] =
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 00b0df97afb1..762289b9984e 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -26,6 +26,7 @@
#include <asm/processor.h>
#include <asm/page.h>
#include <asm/pdc.h>
+#include <asm/smp.h>
#include <asm/pdcpat.h>
#include <asm/irq.h> /* for struct irq_region */
#include <asm/parisc-device.h>
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 573f8303e2b0..211a4afdd282 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -40,11 +40,6 @@
static char __initdata command_line[COMMAND_LINE_SIZE];
-/* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
-struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
-struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
-struct proc_dir_entry * proc_mckinley_root __read_mostly = NULL;
-
static void __init setup_cmdline(char **cmdline_p)
{
extern unsigned int boot_args[];
@@ -196,48 +191,6 @@ const struct seq_operations cpuinfo_op = {
.show = show_cpuinfo
};
-static void __init parisc_proc_mkdir(void)
-{
- /*
- ** Can't call proc_mkdir() until after proc_root_init() has been
- ** called by start_kernel(). In other words, this code can't
- ** live in arch/.../setup.c because start_parisc() calls
- ** start_kernel().
- */
- switch (boot_cpu_data.cpu_type) {
- case pcxl:
- case pcxl2:
- if (NULL == proc_gsc_root)
- {
- proc_gsc_root = proc_mkdir("bus/gsc", NULL);
- }
- break;
- case pcxt_:
- case pcxu:
- case pcxu_:
- case pcxw:
- case pcxw_:
- case pcxw2:
- if (NULL == proc_runway_root)
- {
- proc_runway_root = proc_mkdir("bus/runway", NULL);
- }
- break;
- case mako:
- case mako2:
- if (NULL == proc_mckinley_root)
- {
- proc_mckinley_root = proc_mkdir("bus/mckinley", NULL);
- }
- break;
- default:
- /* FIXME: this was added to prevent the compiler
- * complaining about missing pcx, pcxs and pcxt
- * I'm assuming they have neither gsc nor runway */
- break;
- }
-}
-
static struct resource central_bus = {
.name = "Central Bus",
.start = F_EXTEND(0xfff80000),
@@ -294,7 +247,6 @@ static int __init parisc_init(void)
{
u32 osid = (OS_ID_LINUX << 16);
- parisc_proc_mkdir();
parisc_init_resources();
do_device_inventory(); /* probe for hardware */
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index f886ff0c75df..e8d27def6c52 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -423,7 +423,7 @@ static void check_syscallno_in_delay_branch(struct pt_regs *regs)
regs->gr[31] -= 8; /* delayed branching */
/* Get assembler opcode of code in delay branch */
- uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);
+ uaddr = (u32 __user *) ((regs->gr[31] & ~3) + 4);
err = get_user(opcode, uaddr);
if (err)
return;
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 1373e5129868..1f51aa9c8230 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -39,6 +39,7 @@ registers).
#include <asm/assembly.h>
#include <asm/processor.h>
#include <asm/cache.h>
+#include <asm/spinlock_types.h>
#include <linux/linkage.h>
@@ -66,6 +67,16 @@ registers).
stw \reg1, 0(%sr2,\reg2)
.endm
+ /* raise exception if spinlock content is not zero or
+ * __ARCH_SPIN_LOCK_UNLOCKED_VAL */
+ .macro spinlock_check spin_val,tmpreg
+#ifdef CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK
+ ldi __ARCH_SPIN_LOCK_UNLOCKED_VAL, \tmpreg
+ andcm,= \spin_val, \tmpreg, %r0
+ .word SPINLOCK_BREAK_INSN
+#endif
+ .endm
+
.text
.import syscall_exit,code
@@ -508,7 +519,8 @@ lws_start:
lws_exit_noerror:
lws_pagefault_enable %r1,%r21
- stw,ma %r20, 0(%sr2,%r20)
+ ldi __ARCH_SPIN_LOCK_UNLOCKED_VAL, %r21
+ stw,ma %r21, 0(%sr2,%r20)
ssm PSW_SM_I, %r0
b lws_exit
copy %r0, %r21
@@ -521,7 +533,8 @@ lws_wouldblock:
lws_pagefault:
lws_pagefault_enable %r1,%r21
- stw,ma %r20, 0(%sr2,%r20)
+ ldi __ARCH_SPIN_LOCK_UNLOCKED_VAL, %r21
+ stw,ma %r21, 0(%sr2,%r20)
ssm PSW_SM_I, %r0
ldo 3(%r0),%r28
b lws_exit
@@ -619,6 +632,7 @@ lws_compare_and_swap:
/* Try to acquire the lock */
LDCW 0(%sr2,%r20), %r28
+ spinlock_check %r28, %r21
comclr,<> %r0, %r28, %r0
b,n lws_wouldblock
@@ -772,6 +786,7 @@ cas2_lock_start:
/* Try to acquire the lock */
LDCW 0(%sr2,%r20), %r28
+ spinlock_check %r28, %r21
comclr,<> %r0, %r28, %r0
b,n lws_wouldblock
@@ -1001,6 +1016,7 @@ atomic_xchg_start:
/* Try to acquire the lock */
LDCW 0(%sr2,%r20), %r28
+ spinlock_check %r28, %r21
comclr,<> %r0, %r28, %r0
b,n lws_wouldblock
@@ -1199,6 +1215,7 @@ atomic_store_start:
/* Try to acquire the lock */
LDCW 0(%sr2,%r20), %r28
+ spinlock_check %r28, %r21
comclr,<> %r0, %r28, %r0
b,n lws_wouldblock
@@ -1330,7 +1347,7 @@ ENTRY(lws_lock_start)
/* lws locks */
.rept 256
/* Keep locks aligned at 16-bytes */
- .word 1
+ .word __ARCH_SPIN_LOCK_UNLOCKED_VAL
.word 0
.word 0
.word 0
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 813062701922..170d0dda4213 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -11,6 +11,7 @@
#include <linux/signal.h>
#include <linux/ratelimit.h>
#include <linux/uaccess.h>
+#include <linux/sysctl.h>
#include <asm/unaligned.h>
#include <asm/hardirq.h>
#include <asm/traps.h>
diff --git a/arch/parisc/lib/ucmpdi2.c b/arch/parisc/lib/ucmpdi2.c
index 8e6014a142ef..9d8b4dbae273 100644
--- a/arch/parisc/lib/ucmpdi2.c
+++ b/arch/parisc/lib/ucmpdi2.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/module.h>
+#include <linux/libgcc.h>
union ull_union {
unsigned long long ull;
@@ -9,7 +10,7 @@ union ull_union {
} ui;
};
-int __ucmpdi2(unsigned long long a, unsigned long long b)
+word_type __ucmpdi2(unsigned long long a, unsigned long long b)
{
union ull_union au = {.ull = a};
union ull_union bu = {.ull = b};
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index a4c7c7630f48..2fe5b44986e0 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -192,31 +192,31 @@ int fixup_exception(struct pt_regs *regs)
* For implementation see handle_interruption() in traps.c
*/
static const char * const trap_description[] = {
- [1] "High-priority machine check (HPMC)",
- [2] "Power failure interrupt",
- [3] "Recovery counter trap",
- [5] "Low-priority machine check",
- [6] "Instruction TLB miss fault",
- [7] "Instruction access rights / protection trap",
- [8] "Illegal instruction trap",
- [9] "Break instruction trap",
- [10] "Privileged operation trap",
- [11] "Privileged register trap",
- [12] "Overflow trap",
- [13] "Conditional trap",
- [14] "FP Assist Exception trap",
- [15] "Data TLB miss fault",
- [16] "Non-access ITLB miss fault",
- [17] "Non-access DTLB miss fault",
- [18] "Data memory protection/unaligned access trap",
- [19] "Data memory break trap",
- [20] "TLB dirty bit trap",
- [21] "Page reference trap",
- [22] "Assist emulation trap",
- [25] "Taken branch trap",
- [26] "Data memory access rights trap",
- [27] "Data memory protection ID trap",
- [28] "Unaligned data reference trap",
+ [1] = "High-priority machine check (HPMC)",
+ [2] = "Power failure interrupt",
+ [3] = "Recovery counter trap",
+ [5] = "Low-priority machine check",
+ [6] = "Instruction TLB miss fault",
+ [7] = "Instruction access rights / protection trap",
+ [8] = "Illegal instruction trap",
+ [9] = "Break instruction trap",
+ [10] = "Privileged operation trap",
+ [11] = "Privileged register trap",
+ [12] = "Overflow trap",
+ [13] = "Conditional trap",
+ [14] = "FP Assist Exception trap",
+ [15] = "Data TLB miss fault",
+ [16] = "Non-access ITLB miss fault",
+ [17] = "Non-access DTLB miss fault",
+ [18] = "Data memory protection/unaligned access trap",
+ [19] = "Data memory break trap",
+ [20] = "TLB dirty bit trap",
+ [21] = "Page reference trap",
+ [22] = "Assist emulation trap",
+ [25] = "Taken branch trap",
+ [26] = "Data memory access rights trap",
+ [27] = "Data memory protection ID trap",
+ [28] = "Unaligned data reference trap",
};
const char *trap_name(unsigned long code)
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 389941c7f209..a088c243edea 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -523,10 +523,6 @@ void mark_rodata_ro(void)
void *parisc_vmalloc_start __ro_after_init;
EXPORT_SYMBOL(parisc_vmalloc_start);
-#ifdef CONFIG_PA11
-unsigned long pcxl_dma_start __ro_after_init;
-#endif
-
void __init mem_init(void)
{
/* Do sanity checks on IPC (compat) structures */
diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index 345ff0b66499..d7ee1f43d997 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -27,7 +27,7 @@
*/
void __iomem *ioremap(unsigned long phys_addr, unsigned long size)
{
- void __iomem *addr;
+ uintptr_t addr;
struct vm_struct *area;
unsigned long offset, last_addr;
pgprot_t pgprot;
@@ -79,10 +79,9 @@ void __iomem *ioremap(unsigned long phys_addr, unsigned long size)
if (!area)
return NULL;
- addr = (void __iomem *) area->addr;
- if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
- phys_addr, pgprot)) {
- vunmap(addr);
+ addr = (uintptr_t) area->addr;
+ if (ioremap_page_range(addr, addr + size, phys_addr, pgprot)) {
+ vunmap(area->addr);
return NULL;
}
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index bf3405f4289e..8b1dcd537020 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -121,6 +121,8 @@ module_param(sba_reserve_agpgart, int, 0444);
MODULE_PARM_DESC(sba_reserve_agpgart, "Reserve half of IO pdir as AGPGART");
#endif
+struct proc_dir_entry *proc_runway_root __ro_after_init;
+struct proc_dir_entry *proc_mckinley_root __ro_after_init;
/************************************
** SBA register read and write support
@@ -1968,11 +1970,15 @@ static int __init sba_driver_callback(struct parisc_device *dev)
#ifdef CONFIG_PROC_FS
switch (dev->id.hversion) {
case PLUTO_MCKINLEY_PORT:
+ if (!proc_mckinley_root)
+ proc_mckinley_root = proc_mkdir("bus/mckinley", NULL);
root = proc_mckinley_root;
break;
case ASTRO_RUNWAY_PORT:
case IKE_MERCED_PORT:
default:
+ if (!proc_runway_root)
+ proc_runway_root = proc_mkdir("bus/runway", NULL);
root = proc_runway_root;
break;
}
generated by cgit (git 2.34.1) at 2025-04-22 06:30:46 +0000