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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-11-18 15:59:59 +0000 |
|---|---|---|
| committer | abiesheuvel <abiesheuvel@Edk2> | 2015-11-18 15:59:59 +0000 |
| commit | 72143137f4ea558757cb7933b1f3a0c21252126b (patch) | |
| tree | 98494a546382e6e3e322c77cf8d60955e745634e /ArmPkg/Library/ArmLib | |
| parent | 42dc8026a8711315652936ffd334a4752bbd5d2e (diff) | |
| download | edk2-platforms-72143137f4ea558757cb7933b1f3a0c21252126b.tar.xz | |
ArmPkg/ArmV7Lib: take MP extensions into account when programming TTBR
Bits 0 and 6 of the TTBRx system registers have different meanings
depending on whether a system implements the Multiprocessing
Extensions. So use separate memory attribute definitions for MP and
non-MP.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18899 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPkg/Library/ArmLib')
| -rw-r--r-- | ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c index a9cb06d78e..b2cfdba900 100644 --- a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c +++ b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c @@ -261,13 +261,13 @@ ArmConfigureMmu ( // Translate the Memory Attributes into Translation Table Register Attributes
if ((TranslationTableAttribute == ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED) ||
(TranslationTableAttribute == ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_UNCACHED_UNBUFFERED)) {
- TTBRAttributes = TTBR_NON_CACHEABLE;
+ TTBRAttributes = ArmHasMpExtensions () ? TTBR_MP_NON_CACHEABLE : TTBR_NON_CACHEABLE;
} else if ((TranslationTableAttribute == ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK) ||
(TranslationTableAttribute == ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_WRITE_BACK)) {
- TTBRAttributes = TTBR_WRITE_BACK_ALLOC;
+ TTBRAttributes = ArmHasMpExtensions () ? TTBR_MP_WRITE_BACK_ALLOC : TTBR_WRITE_BACK_ALLOC;
} else if ((TranslationTableAttribute == ARM_MEMORY_REGION_ATTRIBUTE_WRITE_THROUGH) ||
(TranslationTableAttribute == ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_WRITE_THROUGH)) {
- TTBRAttributes = TTBR_WRITE_THROUGH;
+ TTBRAttributes = ArmHasMpExtensions () ? TTBR_MP_WRITE_THROUGH : TTBR_WRITE_THROUGH;
} else {
ASSERT (0); // No support has been found for the attributes of the memory region that the translation table belongs to.
return RETURN_UNSUPPORTED;
|