diff options
| author | Will Deacon <will@kernel.org> | 2021-05-27 12:03:19 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-06-01 18:53:53 +0100 |
| commit | 21cfe6edbadb703b674ae2ddf78862d00d24bfc5 (patch) | |
| tree | 32899d9e9a98b8463c93add54b746e87e13f643e | |
| parent | ee67c1103a1b50467969cf2cdb182c096c144459 (diff) | |
| download | linux-21cfe6edbadb703b674ae2ddf78862d00d24bfc5.tar.bz2 | |
arm64: mm: Remove unused support for Normal-WT memory type
The Normal-WT memory type is unused, so remove it and reclaim a MAIR.
Cc: Christoph Hellwig <hch@lst.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210527110319.22157-4-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/include/asm/memory.h | 5 | ||||
| -rw-r--r-- | arch/arm64/include/asm/pgtable-prot.h | 1 | ||||
| -rw-r--r-- | arch/arm64/include/asm/sysreg.h | 1 | ||||
| -rw-r--r-- | arch/arm64/mm/proc.S | 1 |
4 files changed, 2 insertions, 6 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index 1e025e3b655e..7b360960cc35 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -135,9 +135,8 @@ #define MT_NORMAL 0 #define MT_NORMAL_TAGGED 1 #define MT_NORMAL_NC 2 -#define MT_NORMAL_WT 3 -#define MT_DEVICE_nGnRnE 4 -#define MT_DEVICE_nGnRE 5 +#define MT_DEVICE_nGnRnE 3 +#define MT_DEVICE_nGnRE 4 /* * Memory types for Stage-2 translation diff --git a/arch/arm64/include/asm/pgtable-prot.h b/arch/arm64/include/asm/pgtable-prot.h index 938092df76cf..7032f04c8ac6 100644 --- a/arch/arm64/include/asm/pgtable-prot.h +++ b/arch/arm64/include/asm/pgtable-prot.h @@ -55,7 +55,6 @@ extern bool arm64_use_ng_mappings; #define PROT_DEVICE_nGnRnE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRnE)) #define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRE)) #define PROT_NORMAL_NC (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_NC)) -#define PROT_NORMAL_WT (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_WT)) #define PROT_NORMAL (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL)) #define PROT_NORMAL_TAGGED (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_TAGGED)) diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index baeb33cd7685..9ea84bcddf85 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -704,7 +704,6 @@ #define MAIR_ATTR_DEVICE_nGnRnE UL(0x00) #define MAIR_ATTR_DEVICE_nGnRE UL(0x04) #define MAIR_ATTR_NORMAL_NC UL(0x44) -#define MAIR_ATTR_NORMAL_WT UL(0xbb) #define MAIR_ATTR_NORMAL_TAGGED UL(0xf0) #define MAIR_ATTR_NORMAL UL(0xff) #define MAIR_ATTR_MASK UL(0xff) diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S index add026fcc88c..6e640fa9788e 100644 --- a/arch/arm64/mm/proc.S +++ b/arch/arm64/mm/proc.S @@ -60,7 +60,6 @@ MAIR_ATTRIDX(MAIR_ATTR_DEVICE_nGnRE, MT_DEVICE_nGnRE) | \ MAIR_ATTRIDX(MAIR_ATTR_NORMAL_NC, MT_NORMAL_NC) | \ MAIR_ATTRIDX(MAIR_ATTR_NORMAL, MT_NORMAL) | \ - MAIR_ATTRIDX(MAIR_ATTR_NORMAL_WT, MT_NORMAL_WT) | \ MAIR_ATTRIDX(MAIR_ATTR_NORMAL, MT_NORMAL_TAGGED)) #ifdef CONFIG_CPU_PM |