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arch/x86: Add read64 and write64 functions 

Create new functions similar to read and write of other sizes.

Change-Id: I35a08c498f25227233604c65c45b73b1c44fae1f
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/19394
Tested-by: build bot (Jenkins)
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Marshall Dawson 2017-04-20 14:03:11 -06:00 committed by Marc Jones
parent 8e055f8f53
commit efd077ac52
1 changed files with 16 additions and 0 deletions
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16
src/arch/x86/include/arch/io.h
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@ -174,6 +174,14 @@ static inline __attribute__((always_inline)) uint32_t read32(
return *((volatile uint32_t *)(addr));
}
#ifndef __ROMCC__
static inline __attribute__((always_inline)) uint64_t read64(
const volatile void *addr)
{
return *((volatile uint64_t *)(addr));
}
#endif
static inline __attribute__((always_inline)) void write8(volatile void *addr,
uint8_t value)
{
@ -192,6 +200,14 @@ static inline __attribute__((always_inline)) void write32(volatile void *addr,
*((volatile uint32_t *)(addr)) = value;
}
#ifndef __ROMCC__
static inline __attribute__((always_inline)) void write64(volatile void *addr,
uint64_t value)
{
*((volatile uint64_t *)(addr)) = value;
}
#endif
/* Conflicts with definition in lib.h */
#if defined(__ROMCC__)
static inline int log2(u32 value)