| From | Ard Biesheuvel <> | Subject | [PATCH v3 41/60] arm64/mm: Add FEAT_LPA2 specific TCR_EL1.DS field | Date | Tue, 7 Mar 2023 15:05:03 +0100 |
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From: Anshuman Khandual <anshuman.khandual@arm.com>
As per ARM ARM (0487G.A) TCR_EL1.DS fields controls whether 52 bit input and output address get supported on 4K and 16K page size configuration, when FEAT_LPA2 is known to have been implemented. This adds TCR_DS field definition which would be used when FEAT_LPA2 gets enabled.
Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> --- arch/arm64/include/asm/pgtable-hwdef.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index f658aafc47dfa29a..c4ad7fbb12c5c07a 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -276,6 +276,7 @@ #define TCR_E0PD1 (UL(1) << 56) #define TCR_TCMA0 (UL(1) << 57) #define TCR_TCMA1 (UL(1) << 58) +#define TCR_DS (UL(1) << 59) /* * TTBR. -- 2.39.2
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