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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2017-06-30 20:09:32 +0300
committerIngo Molnar <mingo@kernel.org>2017-07-24 11:18:21 +0200
commitc2327da06b33d8e1093ce2c28f395bc500d1b0d3 (patch)
treedfd93d2af6eeaa3e7cfd6e39d9d946e234e3696c /include/asm-generic
parent3195201198aad06c151dcfcb09e2fff79b2fda0e (diff)
downloadlinux-c2327da06b33d8e1093ce2c28f395bc500d1b0d3.tar.bz2
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>
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/io.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 7ef015eb3403..395afc829409 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -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)
{