diff options
| author | Patrick Georgi <pgeorgi@google.com> | 2021-01-29 14:08:48 +0100 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-01-30 20:17:47 +0000 |
| commit | 60f5328c7d4991d3fe9e4c0243f89f49e231f856 (patch) | |
| tree | 511f0d1b645100f0a51e69d940223a69695c9598 /payloads/libpayload | |
| parent | adac6f40f25eb5914ca4a915ffcff170bc3d50fc (diff) | |
libpayload/arm*: Add 64bit memory access primitives
Add read64 and write64 for consistency with x86.
BUG=b:178785769
Change-Id: I342e3a23201d0b804ea5ecfe47ee3e4bb516de4c
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50115
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'payloads/libpayload')
| -rw-r--r-- | payloads/libpayload/include/arm/arch/io.h | 13 | ||||
| -rw-r--r-- | payloads/libpayload/include/arm64/arch/io.h | 13 |
2 files changed, 26 insertions, 0 deletions
diff --git a/payloads/libpayload/include/arm/arch/io.h b/payloads/libpayload/include/arm/arch/io.h index 6d549dedd1..ce48baf72e 100644 --- a/payloads/libpayload/include/arm/arch/io.h +++ b/payloads/libpayload/include/arm/arch/io.h @@ -98,6 +98,12 @@ 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(); @@ -119,4 +125,11 @@ 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 diff --git a/payloads/libpayload/include/arm64/arch/io.h b/payloads/libpayload/include/arm64/arch/io.h index 00c75c4395..092198842f 100644 --- a/payloads/libpayload/include/arm64/arch/io.h +++ b/payloads/libpayload/include/arm64/arch/io.h @@ -99,6 +99,12 @@ 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(); @@ -120,4 +126,11 @@ 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 |