[coreboot-gerrit] New patch to review for coreboot: 1e8dbed armv7: add function for dcache_clean_by_mva()
David Hendricks (dhendrix@chromium.org)
gerrit at coreboot.org
Wed Mar 20 22:48:17 CET 2013
David Hendricks (dhendrix at 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 at 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 at 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);
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