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x86/io: Remove mem*io() duplications 

Generic header defines memset_io, memcpy_fromio(). and memcpy_toio().

Reuse them from generic header and remove in x86 code.
Move the descriptions to the generic header as well.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Baolin Wang <baolin.wang@spreadtrum.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-i2c@vger.kernel.org
Cc: wsa@the-dreams.de
Link: http://lkml.kernel.org/r/20170630170934.83028-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andy Shevchenko 2017-06-30 20:09:32 +03:00 committed by Ingo Molnar
parent 3195201198
commit c2327da06b
2 changed files with 24 additions and 45 deletions
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45
arch/x86/include/asm/io.h
View File

@ -220,51 +220,6 @@ extern void set_iounmap_nonlazy(void);
*/
#define xlate_dev_kmem_ptr(p) p
/**
* memset_io Set a range of I/O memory to a constant value
* @addr: The beginning of the I/O-memory range to set
* @val: The value to set the memory to
* @count: The number of bytes to set
*
* Set a range of I/O memory to a given value.
*/
static inline void
memset_io(volatile void __iomem *addr, unsigned char val, size_t count)
{
memset((void __force *)addr, val, count);
}
#define memset_io(dst,c,count) memset_io(dst,c,count)
/**
* memcpy_fromio Copy a block of data from I/O memory
* @dst: The (RAM) destination for the copy
* @src: The (I/O memory) source for the data
* @count: The number of bytes to copy
*
* Copy a block of data from I/O memory.
*/
static inline void
memcpy_fromio(void *dst, const volatile void __iomem *src, size_t count)
{
memcpy(dst, (const void __force *)src, count);
}
#define memcpy_fromio(to,from,count) memcpy_fromio(to,from,count)
/**
* memcpy_toio Copy a block of data into I/O memory
* @dst: The (I/O memory) destination for the copy
* @src: The (RAM) source for the data
* @count: The number of bytes to copy
*
* Copy a block of data to I/O memory.
*/
static inline void
memcpy_toio(volatile void __iomem *dst, const void *src, size_t count)
{
memcpy((void __force *)dst, src, count);
}
#define memcpy_toio(to,from,count) memcpy_toio(to,from,count)
/*
* ISA space is 'always mapped' on a typical x86 system, no need to
* explicitly ioremap() it. The fact that the ISA IO space is mapped

24
include/asm-generic/io.h
View File

@ -954,6 +954,14 @@ static inline void *bus_to_virt(unsigned long address)
#ifndef memset_io
#define memset_io memset_io
/**
* memset_io Set a range of I/O memory to a constant value
* @addr: The beginning of the I/O-memory range to set
* @val: The value to set the memory to
* @count: The number of bytes to set
*
* Set a range of I/O memory to a given value.
*/
static inline void memset_io(volatile void __iomem *addr, int value,
size_t size)
{
@ -963,6 +971,14 @@ static inline void memset_io(volatile void __iomem *addr, int value,
#ifndef memcpy_fromio
#define memcpy_fromio memcpy_fromio
/**
* memcpy_fromio Copy a block of data from I/O memory
* @dst: The (RAM) destination for the copy
* @src: The (I/O memory) source for the data
* @count: The number of bytes to copy
*
* Copy a block of data from I/O memory.
*/
static inline void memcpy_fromio(void *buffer,
const volatile void __iomem *addr,
size_t size)
@ -973,6 +989,14 @@ static inline void memcpy_fromio(void *buffer,
#ifndef memcpy_toio
#define memcpy_toio memcpy_toio
/**
* memcpy_toio Copy a block of data into I/O memory
* @dst: The (I/O memory) destination for the copy
* @src: The (RAM) source for the data
* @count: The number of bytes to copy
*
* Copy a block of data to I/O memory.
*/
static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer,
size_t size)
{