diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-03-31 11:23:55 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-03-31 11:23:55 +0000 |
| commit | 2cf4b60895f8af5be3fa33231974dc3cb143b53c (patch) | |
| tree | 22bccbdbdc269e4ae916ae61e06bd8eade04c3f1 /ArmPkg/Include/Chipset | |
| parent | 2ed2ed29c27dc488dcfa602059847a168941e593 (diff) | |
| download | edk2-platforms-2cf4b60895f8af5be3fa33231974dc3cb143b53c.tar.xz | |
ArmPkg/Mmu: Support page size granularity in the initial MMU setting
Formerly, it was only possible to use section size granularity for the
translation table regions.
This change allows to define initial translation table regions with
4K-byte granularty (page size granularity).
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11467 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPkg/Include/Chipset')
| -rw-r--r-- | ArmPkg/Include/Chipset/ArmV7.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/ArmPkg/Include/Chipset/ArmV7.h b/ArmPkg/Include/Chipset/ArmV7.h index b9d7430580..6a63cceabb 100644 --- a/ArmPkg/Include/Chipset/ArmV7.h +++ b/ArmPkg/Include/Chipset/ArmV7.h @@ -122,6 +122,8 @@ #define TT_DESCRIPTOR_SECTION_CACHE_POLICY_WRITE_BACK_ALLOC ((1UL << 12) | (1UL << 3) | (1UL << 2))
#define TT_DESCRIPTOR_SECTION_CACHE_POLICY_NON_SHAREABLE_DEVICE ((2UL << 12) | (0UL << 3) | (0UL << 2))
+#define TT_DESCRIPTOR_PAGE_SIZE (0x00001000)
+
#define TT_DESCRIPTOR_PAGE_CACHE_POLICY_MASK ((3UL << 6) | (1UL << 3) | (1UL << 2))
#define TT_DESCRIPTOR_PAGE_CACHEABLE_MASK (1UL << 3)
#define TT_DESCRIPTOR_PAGE_CACHE_POLICY_STRONGLY_ORDERED ((0UL << 6) | (0UL << 3) | (0UL << 2))
@@ -151,6 +153,13 @@ (((Desc) & TT_DESCRIPTOR_SECTION_CACHE_POLICY_MASK) & TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_MASK): \
(((((Desc) & (0x3 << 12)) >> 6) | (Desc & (0x3 << 2)))))
+#define TT_DESCRIPTOR_CONVERT_TO_SECTION_AP(Desc) ((((Desc) & TT_DESCRIPTOR_PAGE_AP_MASK) << 6) & TT_DESCRIPTOR_SECTION_AP_MASK)
+
+#define TT_DESCRIPTOR_CONVERT_TO_SECTION_CACHE_POLICY(Desc,IsLargePage) (IsLargePage? \
+ (((Desc) & TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_MASK) & TT_DESCRIPTOR_SECTION_CACHE_POLICY_MASK): \
+ (((((Desc) & (0x3 << 6)) << 6) | (Desc & (0x3 << 2)))))
+
+
#define TT_DESCRIPTOR_SECTION_DOMAIN_MASK (0x0FUL << 5)
#define TT_DESCRIPTOR_SECTION_DOMAIN(a) (((a) & 0x0FUL) << 5)
@@ -193,6 +202,27 @@ TT_DESCRIPTOR_SECTION_AP_RW_RW | \
TT_DESCRIPTOR_SECTION_CACHE_POLICY_NON_CACHEABLE)
+#define TT_DESCRIPTOR_PAGE_WRITE_BACK (TT_DESCRIPTOR_PAGE_TYPE_PAGE | \
+ TT_DESCRIPTOR_PAGE_NG_GLOBAL | \
+ TT_DESCRIPTOR_PAGE_S_NOT_SHARED | \
+ TT_DESCRIPTOR_PAGE_AP_RW_RW | \
+ TT_DESCRIPTOR_PAGE_CACHE_POLICY_WRITE_BACK_ALLOC)
+#define TT_DESCRIPTOR_PAGE_WRITE_THROUGH (TT_DESCRIPTOR_PAGE_TYPE_PAGE | \
+ TT_DESCRIPTOR_PAGE_NG_GLOBAL | \
+ TT_DESCRIPTOR_PAGE_S_NOT_SHARED | \
+ TT_DESCRIPTOR_PAGE_AP_RW_RW | \
+ TT_DESCRIPTOR_PAGE_CACHE_POLICY_WRITE_THROUGH_NO_ALLOC)
+#define TT_DESCRIPTOR_PAGE_DEVICE (TT_DESCRIPTOR_PAGE_TYPE_PAGE | \
+ TT_DESCRIPTOR_PAGE_NG_GLOBAL | \
+ TT_DESCRIPTOR_PAGE_S_NOT_SHARED | \
+ TT_DESCRIPTOR_PAGE_AP_RW_RW | \
+ TT_DESCRIPTOR_PAGE_CACHE_POLICY_SHAREABLE_DEVICE)
+#define TT_DESCRIPTOR_PAGE_UNCACHED (TT_DESCRIPTOR_PAGE_TYPE_PAGE | \
+ TT_DESCRIPTOR_PAGE_NG_GLOBAL | \
+ TT_DESCRIPTOR_PAGE_S_NOT_SHARED | \
+ TT_DESCRIPTOR_PAGE_AP_RW_RW | \
+ TT_DESCRIPTOR_PAGE_CACHE_POLICY_NON_CACHEABLE)
+
// Cortex A9 feature bit definitions
#define A9_FEATURE_PARITY (1<<9)
#define A9_FEATURE_AOW (1<<8)
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