diff options
| author | Marc Zyngier <maz@kernel.org> | 2023-03-17 19:22:51 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-04-25 22:31:27 +0300 |
| commit | 6cdf6b7a340db4ddd008516181de7e08e3f8c213 (patch) | |
| tree | 74bd932309359be5b6dec15dcf822bafc75a0f97 /arch/arm/include/asm/armv8 | |
| parent | bad2618b8c5c7e18dcfb9ff6a7d108e389d20cf7 (diff) | |
| download | u-boot-6cdf6b7a340db4ddd008516181de7e08e3f8c213.tar.xz | |
arm64: Use FEAT_HAFDBS to track dirty pages when available
Some recent arm64 cores have a facility that allows the page
table walker to track the dirty state of a page. This makes it
really efficient to perform CMOs by VA as we only need to look
at dirty pages.
Signed-off-by: Marc Zyngier <maz@kernel.org>
[ Paul: pick from the Android tree. Rebase to the upstream ]
Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Cc: Tom Rini <trini@konsulko.com>
Link: https://android.googlesource.com/platform/external/u-boot/+/3c433724e6f830a6b2edd5ec3d4a504794887263
Diffstat (limited to 'arch/arm/include/asm/armv8')
| -rw-r--r-- | arch/arm/include/asm/armv8/mmu.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/include/asm/armv8/mmu.h b/arch/arm/include/asm/armv8/mmu.h index 9f58cedb65..98a27db316 100644 --- a/arch/arm/include/asm/armv8/mmu.h +++ b/arch/arm/include/asm/armv8/mmu.h @@ -49,10 +49,13 @@ #define PTE_TYPE_BLOCK (1 << 0) #define PTE_TYPE_VALID (1 << 0) -#define PTE_TABLE_PXN (1UL << 59) -#define PTE_TABLE_XN (1UL << 60) -#define PTE_TABLE_AP (1UL << 61) -#define PTE_TABLE_NS (1UL << 63) +#define PTE_RDONLY BIT(7) +#define PTE_DBM BIT(51) + +#define PTE_TABLE_PXN BIT(59) +#define PTE_TABLE_XN BIT(60) +#define PTE_TABLE_AP BIT(61) +#define PTE_TABLE_NS BIT(63) /* * Block @@ -99,6 +102,9 @@ #define TCR_TG0_16K (2 << 14) #define TCR_EPD1_DISABLE (1 << 23) +#define TCR_HA BIT(39) +#define TCR_HD BIT(40) + #define TCR_EL1_RSVD (1U << 31) #define TCR_EL2_RSVD (1U << 31 | 1 << 23) #define TCR_EL3_RSVD (1U << 31 | 1 << 23) |