diff options
| -rw-r--r-- | src/arch/arm64/armv8/mmu.c | 12 | ||||
| -rw-r--r-- | src/arch/arm64/include/armv8/arch/mmu.h | 3 |
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 |