diff options
| author | Furquan Shaikh <furquan@google.com> | 2015-03-18 11:27:25 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-05-11 18:02:14 +0200 |
| commit | a9ee61e2538c206c3518f4ede1da6405ad7b1476 (patch) | |
| tree | 16d237200498f77097f4541608dccc5e8ed49e4d /src/arch | |
| parent | 9bb90cd1a2d79146c0f4928ec88fd3b7fa3c7f60 (diff) | |
cache: Add arch_program_segment_loaded call to arm and arm64
arch_program_segment_loaded ensures that the program segment loaded is
synced back from the cache to PoC. dcache_flush_all on arm64 does not
guarantee PoC in case of MP systems. Thus, it is important to track
and sync back all the required segments using
arch_program_segment_loaded. Use this function in rmodules as well
instead of cache_sync_instructions which guarantees sync upto PoC.
BUG=chrome-os-partner:37546
BRANCH=None
TEST=Boots into depthcharge on foster
Change-Id: I64c2dd5e40ea59fa31f300174ca0d0aebcf8041d
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 35ba0b882b86ff2c29ac766e1d65f403c8346247
Original-Change-Id: I964aa09f0cafdaab170606cd4b8f2e027698aee7
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/260908
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/10173
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/arm/armv7/cache.c | 10 | ||||
| -rw-r--r-- | src/arch/arm64/armv8/cache.c | 12 |
2 files changed, 22 insertions, 0 deletions
diff --git a/src/arch/arm/armv7/cache.c b/src/arch/arm/armv7/cache.c index 1f762b8f9b..eea514bd4b 100644 --- a/src/arch/arm/armv7/cache.c +++ b/src/arch/arm/armv7/cache.c @@ -34,6 +34,7 @@ #include <stdint.h> #include <arch/cache.h> +#include <program_loading.h> void tlb_invalidate_all(void) { @@ -155,3 +156,12 @@ void cache_sync_instructions(void) dsb(); isb(); } + +/* + * For each segment of a program loaded this function is called + * to invalidate caches for the addresses of the loaded segment + */ +void arch_segment_loaded(uintptr_t start, size_t size, int flags) +{ + cache_sync_instructions(); +} diff --git a/src/arch/arm64/armv8/cache.c b/src/arch/arm64/armv8/cache.c index db9b3882bc..95f2890ff0 100644 --- a/src/arch/arm64/armv8/cache.c +++ b/src/arch/arm64/armv8/cache.c @@ -36,6 +36,7 @@ #include <arch/cache.h> #include <arch/cache_helpers.h> #include <arch/lib_helpers.h> +#include <program_loading.h> void tlb_invalidate_all(void) { @@ -147,3 +148,14 @@ void cache_sync_instructions(void) flush_dcache_all(DCCISW); /* includes trailing DSB (in assembly) */ icache_invalidate_all(); /* includdes leading DSB and trailing ISB. */ } + + +/* + * For each segment of a program loaded this function is called + * to invalidate caches for the addresses of the loaded segment + */ +void arch_segment_loaded(uintptr_t start, size_t size, int flags) +{ + dcache_clean_invalidate_by_mva((void *)start, size); + icache_invalidate_all(); +} |