Merge tag 'asm-generic-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic cleanups from Arnd Bergmann:
 "A series from Baoquan He cleans up the asm-generic/io.h to remove the
  ioremap_uc() definition from everything except x86, which still needs
  it for pre-PAT systems. This series notably contains a patch from
  Jiaxun Yang that converts MIPS to use asm-generic/io.h like every
  other architecture does, enabling future cleanups.

  Some of my own patches fix -Wmissing-prototype warnings in
  architecture specific code across several architectures. This is now
  needed as the warning is enabled by default. There are still some
  remaining warnings in minor platforms, but the series should catch
  most of the widely used ones make them more consistent with one
  another.

  David McKay fixes a bug in __generic_cmpxchg_local() when this is used
  on 64-bit architectures. This could currently only affect parisc64 and
  sparc64.

  Additional cleanups address from Linus Walleij, Uwe Kleine-König,
  Thomas Huth, and Kefeng Wang help reduce unnecessary inconsistencies
  between architectures"

* tag 'asm-generic-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  asm-generic: Fix 32 bit __generic_cmpxchg_local
  Hexagon: Make pfn accessors statics inlines
  ARC: mm: Make virt_to_pfn() a static inline
  mips: remove extraneous asm-generic/iomap.h include
  sparc: Use $(kecho) to announce kernel images being ready
  arm64: vdso32: Define BUILD_VDSO32_64 to correct prototypes
  csky: fix arch_jump_label_transform_static override
  arch: add do_page_fault prototypes
  arch: add missing prepare_ftrace_return() prototypes
  arch: vdso: consolidate gettime prototypes
  arch: include linux/cpu.h for trap_init() prototype
  arch: fix asm-offsets.c building with -Wmissing-prototypes
  arch: consolidate arch_irq_work_raise prototypes
  hexagon: Remove CONFIG_HEXAGON_ARCH_VERSION from uapi header
  asm/io: remove unnecessary xlate_dev_mem_ptr() and unxlate_dev_mem_ptr()
  mips: io: remove duplicated codes
  arch/*/io.h: remove ioremap_uc in some architectures
  mips: add <asm-generic/io.h> including

6 files changed, 78 insertions, 66 deletions

diff --git a/arch/mips/include/asm/ftrace.h b/arch/mips/include/asm/ftrace.h
index db497a8167da..dc025888f6d2 100644
--- a/arch/mips/include/asm/ftrace.h
+++ b/arch/mips/include/asm/ftrace.h
@@ -85,6 +85,10 @@ struct dyn_arch_ftrace {
 };
 
 #endif /*  CONFIG_DYNAMIC_FTRACE */
+
+void prepare_ftrace_return(unsigned long *parent_ra_addr, unsigned long self_ra,
+			   unsigned long fp);
+
 #endif /* __ASSEMBLY__ */
 #endif /* CONFIG_FUNCTION_TRACER */
 #endif /* _ASM_MIPS_FTRACE_H */
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 062dd4e6b954..85bbd967e05f 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -13,7 +13,6 @@
 #define _ASM_IO_H
 
 #include <linux/compiler.h>
-#include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/irqflags.h>
 
@@ -25,7 +24,6 @@
 #include <asm/cpu-features.h>
 #include <asm/page.h>
 #include <asm/pgtable-bits.h>
-#include <asm/processor.h>
 #include <asm/string.h>
 #include <mangle-port.h>
 
@@ -41,6 +39,11 @@
 # define __raw_ioswabq(a, x)	(x)
 # define ____raw_ioswabq(a, x)	(x)
 
+# define _ioswabb ioswabb
+# define _ioswabw ioswabw
+# define _ioswabl ioswabl
+# define _ioswabq ioswabq
+
 # define __relaxed_ioswabb ioswabb
 # define __relaxed_ioswabw ioswabw
 # define __relaxed_ioswabl ioswabl
@@ -115,23 +118,6 @@ static inline phys_addr_t virt_to_phys(const volatile void *x)
 }
 
 /*
- *     phys_to_virt    -       map physical address to virtual
- *     @address: address to remap
- *
- *     The returned virtual address is a current CPU mapping for
- *     the memory address given. It is only valid to use this function on
- *     addresses that have a kernel mapping
- *
- *     This function does not handle bus mappings for DMA transfers. In
- *     almost all conceivable cases a device driver should not be using
- *     this function
- */
-static inline void * phys_to_virt(unsigned long address)
-{
-	return __va(address);
-}
-
-/*
  * ISA I/O bus memory addresses are 1:1 with the physical address.
  */
 static inline unsigned long isa_virt_to_bus(volatile void *address)
@@ -139,11 +125,6 @@ static inline unsigned long isa_virt_to_bus(volatile void *address)
 	return virt_to_phys(address);
 }
 
-static inline void *isa_bus_to_virt(unsigned long address)
-{
-	return phys_to_virt(address);
-}
-
 /*
  * Change "struct page" to physical address.
  */
@@ -166,7 +147,6 @@ void iounmap(const volatile void __iomem *addr);
  */
 #define ioremap(offset, size)						\
 	ioremap_prot((offset), (size), _CACHE_UNCACHED)
-#define ioremap_uc		ioremap
 
 /*
  * ioremap_cache -	map bus memory into CPU space
@@ -207,8 +187,6 @@ void iounmap(const volatile void __iomem *addr);
 #define ioremap_wc(offset, size)					\
 	ioremap_prot((offset), (size), boot_cpu_data.writecombine)
 
-#include <asm-generic/iomap.h>
-
 #if defined(CONFIG_CPU_CAVIUM_OCTEON)
 #define war_io_reorder_wmb()		wmb()
 #else
@@ -296,9 +274,9 @@ static inline type pfx##read##bwlq(const volatile void __iomem *mem)	\
 	return pfx##ioswab##bwlq(__mem, __val);				\
 }
 
-#define __BUILD_IOPORT_SINGLE(pfx, bwlq, type, barrier, relax, p)	\
+#define __BUILD_IOPORT_SINGLE(pfx, bwlq, type, barrier, relax)		\
 									\
-static inline void pfx##out##bwlq##p(type val, unsigned long port)	\
+static inline void pfx##out##bwlq(type val, unsigned long port)		\
 {									\
 	volatile type *__addr;						\
 	type __val;							\
@@ -318,7 +296,7 @@ static inline void pfx##out##bwlq##p(type val, unsigned long port)	\
 	*__addr = __val;						\
 }									\
 									\
-static inline type pfx##in##bwlq##p(unsigned long port)			\
+static inline type pfx##in##bwlq(unsigned long port)			\
 {									\
 	volatile type *__addr;						\
 	type __val;							\
@@ -360,11 +338,10 @@ __BUILD_MEMORY_PFX(__mem_, q, u64, 0)
 #endif
 
 #define __BUILD_IOPORT_PFX(bus, bwlq, type)				\
-	__BUILD_IOPORT_SINGLE(bus, bwlq, type, 1, 0,)			\
-	__BUILD_IOPORT_SINGLE(bus, bwlq, type, 1, 0, _p)
+	__BUILD_IOPORT_SINGLE(bus, bwlq, type, 1, 0)
 
 #define BUILDIO_IOPORT(bwlq, type)					\
-	__BUILD_IOPORT_PFX(, bwlq, type)				\
+	__BUILD_IOPORT_PFX(_, bwlq, type)				\
 	__BUILD_IOPORT_PFX(__mem_, bwlq, type)
 
 BUILDIO_IOPORT(b, u8)
@@ -412,14 +389,6 @@ __BUILDIO(q, u64)
 #define writeq_be(val, addr)						\
 	__raw_writeq(cpu_to_be64((val)), (__force unsigned *)(addr))
 
-/*
- * Some code tests for these symbols
- */
-#ifdef CONFIG_64BIT
-#define readq				readq
-#define writeq				writeq
-#endif
-
 #define __BUILD_MEMORY_STRING(bwlq, type)				\
 									\
 static inline void writes##bwlq(volatile void __iomem *mem,		\
@@ -480,18 +449,6 @@ BUILDSTRING(l, u32)
 BUILDSTRING(q, u64)
 #endif
 
-static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count)
-{
-	memset((void __force *) addr, val, count);
-}
-static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count)
-{
-	memcpy(dst, (void __force *) src, count);
-}
-static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count)
-{
-	memcpy((void __force *) dst, src, count);
-}
 
 /*
  * The caches on some architectures aren't dma-coherent and have need to
@@ -548,13 +505,66 @@ extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);
 #define csr_out32(v, a) (*(volatile u32 *)((unsigned long)(a) + __CSR_32_ADJUST) = (v))
 #define csr_in32(a)    (*(volatile u32 *)((unsigned long)(a) + __CSR_32_ADJUST))
 
-/*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
-#define xlate_dev_mem_ptr(p)	__va(p)
-#define unxlate_dev_mem_ptr(p, v) do { } while (0)
+#define __raw_readb __raw_readb
+#define __raw_readw __raw_readw
+#define __raw_readl __raw_readl
+#ifdef CONFIG_64BIT
+#define __raw_readq __raw_readq
+#endif
+#define __raw_writeb __raw_writeb
+#define __raw_writew __raw_writew
+#define __raw_writel __raw_writel
+#ifdef CONFIG_64BIT
+#define __raw_writeq __raw_writeq
+#endif
+
+#define readb readb
+#define readw readw
+#define readl readl
+#ifdef CONFIG_64BIT
+#define readq readq
+#endif
+#define writeb writeb
+#define writew writew
+#define writel writel
+#ifdef CONFIG_64BIT
+#define writeq writeq
+#endif
+
+#define readsb readsb
+#define readsw readsw
+#define readsl readsl
+#ifdef CONFIG_64BIT
+#define readsq readsq
+#endif
+#define writesb writesb
+#define writesw writesw
+#define writesl writesl
+#ifdef CONFIG_64BIT
+#define writesq writesq
+#endif
+
+#define _inb _inb
+#define _inw _inw
+#define _inl _inl
+#define insb insb
+#define insw insw
+#define insl insl
+
+#define _outb _outb
+#define _outw _outw
+#define _outl _outl
+#define outsb outsb
+#define outsw outsw
+#define outsl outsl
 
 void __ioread64_copy(void *to, const void __iomem *from, size_t count);
 
+#include <asm-generic/io.h>
+
+static inline void *isa_bus_to_virt(unsigned long address)
+{
+	return phys_to_virt(address);
+}
+
 #endif /* _ASM_IO_H */
diff --git a/arch/mips/include/asm/mmiowb.h b/arch/mips/include/asm/mmiowb.h
index a40824e3ef8e..cf27752fd220 100644
--- a/arch/mips/include/asm/mmiowb.h
+++ b/arch/mips/include/asm/mmiowb.h
@@ -2,9 +2,9 @@
 #ifndef _ASM_MMIOWB_H
 #define _ASM_MMIOWB_H
 
-#include <asm/io.h>
+#include <asm/barrier.h>
 
-#define mmiowb()	iobarrier_w()
+#define mmiowb()	wmb()
 
 #include <asm-generic/mmiowb.h>
 
diff --git a/arch/mips/include/asm/smp-ops.h b/arch/mips/include/asm/smp-ops.h
index 0c59e168f800..1617b207723f 100644
--- a/arch/mips/include/asm/smp-ops.h
+++ b/arch/mips/include/asm/smp-ops.h
@@ -13,8 +13,6 @@
 
 #include <linux/errno.h>
 
-#include <asm/mips-cps.h>
-
 #ifdef CONFIG_SMP
 
 #include <linux/cpumask.h>
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index 695928637db4..bc2c240f414b 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -11,13 +11,11 @@
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
-#include <linux/bitops.h>
+#include <linux/compiler.h>
 #include <linux/linkage.h>
-#include <linux/smp.h>
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 
-#include <linux/atomic.h>
 #include <asm/smp-ops.h>
 
 extern int smp_num_siblings;
diff --git a/arch/mips/include/asm/traps.h b/arch/mips/include/asm/traps.h
index 2c2b26f1e464..2a8a258730c9 100644
--- a/arch/mips/include/asm/traps.h
+++ b/arch/mips/include/asm/traps.h
@@ -58,6 +58,8 @@ asmlinkage void do_reserved(struct pt_regs *regs);
 asmlinkage void do_ftlb(void);
 asmlinkage void do_gsexc(struct pt_regs *regs, u32 diag1);
 asmlinkage void do_daddi_ov(struct pt_regs *regs);
+asmlinkage void do_page_fault(struct pt_regs *regs,
+	unsigned long write, unsigned long address);
 
 asmlinkage void cache_parity_error(void);
 asmlinkage void ejtag_exception_handler(struct pt_regs *regs);