diff options
| author | David Hendricks <dhendricks@fb.com> | 2017-12-28 20:52:15 -0800 |
|---|---|---|
| committer | David Hendricks <david.hendricks@gmail.com> | 2018-02-12 23:05:08 +0000 |
| commit | 3b63e0fb5a903adf5c9164b4810e6def9c754a7e (patch) | |
| tree | 3d5ae2933a0390733691d84daf69219dc765fbe0 /src | |
| parent | cc3b69bd14db6d975c35aebf93c3a3f1525c08fd (diff) | |
arm64: Add read64() and write64()
Change-Id: I89cf4b996405af616f54cf2d9fabd4e258352b03
Signed-off-by: David Hendricks <dhendricks@fb.com>
Reviewed-on: https://review.coreboot.org/23036
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/arm64/include/armv8/arch/io.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/arch/arm64/include/armv8/arch/io.h b/src/arch/arm64/include/armv8/arch/io.h index f60e1f4d64..31615f736f 100644 --- a/src/arch/arm64/include/armv8/arch/io.h +++ b/src/arch/arm64/include/armv8/arch/io.h @@ -51,6 +51,12 @@ static inline uint32_t read32(const void *addr) return *(volatile uint32_t *)addr; } +static inline uint64_t read64(const void *addr) +{ + dmb(); + return *(volatile uint64_t *)addr; +} + static inline void write8(void *addr, uint8_t val) { dmb(); @@ -72,4 +78,11 @@ static inline void write32(void *addr, uint32_t val) dmb(); } +static inline void write64(void *addr, uint64_t val) +{ + dmb(); + *(volatile uint64_t *)addr = val; + dmb(); +} + #endif /* __ARCH_IO_H */ |