summaryrefslogtreecommitdiff
path: root/src/arch/arm64
diff options
context:
space:
mode:
Diffstat (limited to 'src/arch/arm64')
-rw-r--r--src/arch/arm64/armv8/mmu.c12
-rw-r--r--src/arch/arm64/include/armv8/arch/mmu.h3
2 files changed, 13 insertions, 2 deletions
diff --git a/src/arch/arm64/armv8/mmu.c b/src/arch/arm64/armv8/mmu.c
index e1f088e102..cba1e4d4eb 100644
--- a/src/arch/arm64/armv8/mmu.c
+++ b/src/arch/arm64/armv8/mmu.c
@@ -67,8 +67,16 @@ static uint64_t get_block_attr(unsigned long tag)
attr = (tag & MA_NS)? BLOCK_NS : 0;
attr |= (tag & MA_RO)? BLOCK_AP_RO : BLOCK_AP_RW;
attr |= BLOCK_ACCESS;
- attr |= (tag & MA_MEM)? (BLOCK_INDEX_MEM_NORMAL << BLOCK_INDEX_SHIFT) :
- (BLOCK_INDEX_MEM_DEV_NGNRNE << BLOCK_INDEX_SHIFT);
+
+ if (tag & MA_MEM) {
+ if (tag & MA_MEM_NC)
+ attr |= BLOCK_INDEX_MEM_NORMAL_NC << BLOCK_INDEX_SHIFT;
+ else
+ attr |= BLOCK_INDEX_MEM_NORMAL << BLOCK_INDEX_SHIFT;
+ } else {
+ attr |= BLOCK_INDEX_MEM_DEV_NGNRNE << BLOCK_INDEX_SHIFT;
+ }
+
return attr;
}
diff --git a/src/arch/arm64/include/armv8/arch/mmu.h b/src/arch/arm64/include/armv8/arch/mmu.h
index f5f60a100c..7639bd52a1 100644
--- a/src/arch/arm64/include/armv8/arch/mmu.h
+++ b/src/arch/arm64/include/armv8/arch/mmu.h
@@ -47,6 +47,9 @@
#define MA_RO (1 << 2)
#define MA_RW (0 << 2)
+/* Non-cacheable memory. */
+#define MA_MEM_NC (1 << 3)
+
/* Descriptor attributes */
#define INVALID_DESC 0x0