diff options
| author | Hung-Te Lin <hungte@chromium.org> | 2013-07-08 12:27:13 +0800 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2013-12-12 22:03:15 +0100 |
| commit | cb0aeef0a9ef58049a093eb42b8c7f06c9e1b271 (patch) | |
| tree | 4cffbbf43bacd965d9703c1ac4a82a52f1a9faa3 /payloads/libpayload | |
| parent | d0fa1d1a616ce4fd08ca2348700b6e0201761da3 (diff) | |
libpayload: armv7: Add cache control function to invalidate range.
When dealing with DMA, we need a function to invalidate cache without corrupting
contents on main memory (clean).
Change-Id: I28e632ae57a7b7ed1accee74e76045b92f92a699
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/61078
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/4345
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'payloads/libpayload')
| -rw-r--r-- | payloads/libpayload/arch/armv7/cache.c | 9 | ||||
| -rw-r--r-- | payloads/libpayload/include/armv7/arch/cache.h | 3 |
2 files changed, 12 insertions, 0 deletions
diff --git a/payloads/libpayload/arch/armv7/cache.c b/payloads/libpayload/arch/armv7/cache.c index 4046451e34..efdf75ebbf 100644 --- a/payloads/libpayload/arch/armv7/cache.c +++ b/payloads/libpayload/arch/armv7/cache.c @@ -80,6 +80,7 @@ enum dcache_op { OP_DCISW, OP_DCCIMVAC, OP_DCCMVAC, + OP_DCIMVAC, }; /* @@ -220,6 +221,9 @@ static void dcache_op_mva(unsigned long addr, case OP_DCCMVAC: dccmvac(line); break; + case OP_DCIMVAC: + dcimvac(line); + break; default: break; } @@ -238,6 +242,11 @@ void dcache_clean_invalidate_by_mva(unsigned long addr, unsigned long len) dcache_op_mva(addr, len, OP_DCCIMVAC); } +void dcache_invalidate_by_mva(unsigned long addr, unsigned long len) +{ + dcache_op_mva(addr, len, OP_DCIMVAC); +} + void dcache_mmu_disable(void) { uint32_t sctlr; diff --git a/payloads/libpayload/include/armv7/arch/cache.h b/payloads/libpayload/include/armv7/arch/cache.h index 1db86dc57c..2571e81c35 100644 --- a/payloads/libpayload/include/armv7/arch/cache.h +++ b/payloads/libpayload/include/armv7/arch/cache.h @@ -266,6 +266,9 @@ void dcache_clean_by_mva(unsigned long addr, unsigned long len); /* dcache clean and invalidate by modified virtual address to PoC */ void dcache_clean_invalidate_by_mva(unsigned long addr, unsigned long len); +/* dcache invalidate by modified virtual address to PoC */ +void dcache_invalidate_by_mva(unsigned long addr, unsigned long len); + /* dcache invalidate all (on current level given by CCSELR) */ void dcache_invalidate_all(void); |