diff options
| author | Will Deacon <will@kernel.org> | 2021-05-27 12:03:17 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-06-01 18:53:53 +0100 |
| commit | 58cc6b72a2127475296502fcb4d2b5006b7f4742 (patch) | |
| tree | 609e0db2bbff167889665046ff1a386da2e2b9cb | |
| parent | 5ae632ed356c2f2e42a3e7ea447e98a9e684539c (diff) | |
arm64: mm: Remove unused support for Device-GRE memory type
The Device-GRE 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>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210505180228.GA3874@arm.com
Link: https://lore.kernel.org/r/20210527110319.22157-2-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/include/asm/memory.h | 1 | ||||
| -rw-r--r-- | arch/arm64/include/asm/sysreg.h | 1 | ||||
| -rw-r--r-- | arch/arm64/mm/proc.S | 1 | ||||
| -rw-r--r-- | arch/arm64/mm/ptdump.c | 4 |
4 files changed, 0 insertions, 7 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index 87b90dc27a43..1e025e3b655e 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -138,7 +138,6 @@ #define MT_NORMAL_WT 3 #define MT_DEVICE_nGnRnE 4 #define MT_DEVICE_nGnRE 5 -#define MT_DEVICE_GRE 6 /* * Memory types for Stage-2 translation diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 65d15700a168..baeb33cd7685 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -703,7 +703,6 @@ /* MAIR_ELx memory attributes (used by Linux) */ #define MAIR_ATTR_DEVICE_nGnRnE UL(0x00) #define MAIR_ATTR_DEVICE_nGnRE UL(0x04) -#define MAIR_ATTR_DEVICE_GRE UL(0x0c) #define MAIR_ATTR_NORMAL_NC UL(0x44) #define MAIR_ATTR_NORMAL_WT UL(0xbb) #define MAIR_ATTR_NORMAL_TAGGED UL(0xf0) diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S index 97d7bcd8d4f2..add026fcc88c 100644 --- a/arch/arm64/mm/proc.S +++ b/arch/arm64/mm/proc.S @@ -58,7 +58,6 @@ #define MAIR_EL1_SET \ (MAIR_ATTRIDX(MAIR_ATTR_DEVICE_nGnRnE, MT_DEVICE_nGnRnE) | \ MAIR_ATTRIDX(MAIR_ATTR_DEVICE_nGnRE, MT_DEVICE_nGnRE) | \ - MAIR_ATTRIDX(MAIR_ATTR_DEVICE_GRE, MT_DEVICE_GRE) | \ 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) | \ diff --git a/arch/arm64/mm/ptdump.c b/arch/arm64/mm/ptdump.c index a1937dfff31c..1c403536c9bb 100644 --- a/arch/arm64/mm/ptdump.c +++ b/arch/arm64/mm/ptdump.c @@ -159,10 +159,6 @@ static const struct prot_bits pte_bits[] = { .set = "DEVICE/nGnRE", }, { .mask = PTE_ATTRINDX_MASK, - .val = PTE_ATTRINDX(MT_DEVICE_GRE), - .set = "DEVICE/GRE", - }, { - .mask = PTE_ATTRINDX_MASK, .val = PTE_ATTRINDX(MT_NORMAL_NC), .set = "MEM/NORMAL-NC", }, { |