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authorPeng Fan2017-11-28 10:31:28 +0800
committerTom Rini2017-12-04 10:23:52 -0500
commit90351547ceeb76c1337757c51af0fb5a2c30bd02 (patch)
tree459dbae28fa78fa410dd18d3bd8e4f12c56fa0fb /arch/arm
parent082693f4f02ad7a9de192e73feae34e28856b8e3 (diff)
armv8: mmu: fix page table mapping
To page mapping the lowest 2 bits needs to be 0x3. If not fix this, the final lowest 3 bits for page mapping is 0x1 which is marked as reserved. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/cpu/armv8/cache_v8.c5
-rw-r--r--arch/arm/include/asm/armv8/mmu.h1
2 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv8/cache_v8.c b/arch/arm/cpu/armv8/cache_v8.c
index adc7e1746f5..6548f3c9121 100644
--- a/arch/arm/cpu/armv8/cache_v8.c
+++ b/arch/arm/cpu/armv8/cache_v8.c
@@ -230,7 +230,10 @@ static void add_map(struct mm_region *map)
/* Page fits, create block PTE */
debug("Setting PTE %p to block virt=%llx\n",
pte, virt);
- *pte = phys | attrs;
+ if (level == 3)
+ *pte = phys | attrs | PTE_TYPE_PAGE;
+ else
+ *pte = phys | attrs;
virt += blocksize;
phys += blocksize;
size -= blocksize;
diff --git a/arch/arm/include/asm/armv8/mmu.h b/arch/arm/include/asm/armv8/mmu.h
index 6121aab547f..765914c7e26 100644
--- a/arch/arm/include/asm/armv8/mmu.h
+++ b/arch/arm/include/asm/armv8/mmu.h
@@ -43,6 +43,7 @@
#define PTE_TYPE_MASK (3 << 0)
#define PTE_TYPE_FAULT (0 << 0)
#define PTE_TYPE_TABLE (3 << 0)
+#define PTE_TYPE_PAGE (3 << 0)
#define PTE_TYPE_BLOCK (1 << 0)
#define PTE_TYPE_VALID (1 << 0)