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>
diff --git a/payloads/libpayload/arch/armv7/cache.c b/payloads/libpayload/arch/armv7/cache.c
index 4046451..efdf75e 100644
--- a/payloads/libpayload/arch/armv7/cache.c
+++ b/payloads/libpayload/arch/armv7/cache.c
@@ -80,6 +80,7 @@
OP_DCISW,
OP_DCCIMVAC,
OP_DCCMVAC,
+ OP_DCIMVAC,
};
/*
@@ -220,6 +221,9 @@
case OP_DCCMVAC:
dccmvac(line);
break;
+ case OP_DCIMVAC:
+ dcimvac(line);
+ break;
default:
break;
}
@@ -238,6 +242,11 @@
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 1db86dc5..2571e81 100644
--- a/payloads/libpayload/include/armv7/arch/cache.h
+++ b/payloads/libpayload/include/armv7/arch/cache.h
@@ -266,6 +266,9 @@
/* 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);