David Hendricks (dhendrix@chromium.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2871
-gerrit
commit 1e8dbed7718d2810ec01169526591d6982be35e0 Author: David Hendricks dhendrix@chromium.org Date: Tue Mar 19 18:38:48 2013 -0700
armv7: add function for dcache_clean_by_mva()
This adds a function for using the DCCMVAC instruction (dcache clean by MVA at point of coherency (main memory)). We already have the inline defined, it's just not used by anything.
Change-Id: Ia0641566a8881335bed8da2963e1db8321d74267 Signed-off-by: David Hendricks dhendrix@chromium.org --- src/arch/armv7/include/arch/cache.h | 3 +++ src/arch/armv7/lib/cache.c | 6 ++++++ 2 files changed, 9 insertions(+)
diff --git a/src/arch/armv7/include/arch/cache.h b/src/arch/armv7/include/arch/cache.h index 31ed345..c003256 100644 --- a/src/arch/armv7/include/arch/cache.h +++ b/src/arch/armv7/include/arch/cache.h @@ -215,6 +215,9 @@ static inline void write_sctlr(unsigned int val) /* dcache clean and invalidate all (on current level given by CCSELR) */ void dcache_clean_invalidate_all(void);
+/* dcache clean by modified virtual address to PoC */ +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);
diff --git a/src/arch/armv7/lib/cache.c b/src/arch/armv7/lib/cache.c index 8fb238a..63e406c 100644 --- a/src/arch/armv7/lib/cache.c +++ b/src/arch/armv7/lib/cache.c @@ -79,6 +79,7 @@ enum dcache_op { OP_DCCISW, OP_DCISW, OP_DCCIMVAC, + OP_DCCMVAC, };
/* @@ -193,6 +194,11 @@ static void dcache_op_mva(unsigned long addr, } }
+void dcache_clean_by_mva(unsigned long addr, unsigned long len) +{ + dcache_op_mva(addr, len, OP_DCCMVAC); +} + void dcache_clean_invalidate_by_mva(unsigned long addr, unsigned long len) { dcache_op_mva(addr, len, OP_DCCIMVAC);