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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2020-11-27 07:44:09 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-03 17:01:25 +0300 |
| commit | d5b810b5c938e73fd21b2b05ef6a79837eeaa305 (patch) | |
| tree | 6ad037bc30752fc340a23ec3f5e83b55a4f268a5 /arch/powerpc/include/asm/mmu.h | |
| parent | 57b7505aa8ba13eb18ffabeb689ac64343c53aaa (diff) | |
| download | linux-d5b810b5c938e73fd21b2b05ef6a79837eeaa305.tar.xz | |
powerpc/book3s64/kuap: Rename MMU_FTR_RADIX_KUAP and MMU_FTR_KUEP
This is in preparation to adding support for kuap with hash translation.
In preparation for that rename/move kuap related functions to
non radix names. Also move the feature bit closer to MMU_FTR_KUEP.
MMU_FTR_KUEP is renamed to MMU_FTR_BOOK3S_KUEP to indicate the feature
is only relevant to BOOK3S_64
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201127044424.40686-8-aneesh.kumar@linux.ibm.com
Diffstat (limited to 'arch/powerpc/include/asm/mmu.h')
| -rw-r--r-- | arch/powerpc/include/asm/mmu.h | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index 255a1837e9f7..b6ab5edb644a 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -29,9 +29,18 @@ */ /* - * Support for KUEP feature. + * Supports KUAP feature + * key 0 controlling userspace addresses on radix + * Key 3 on hash */ -#define MMU_FTR_KUEP ASM_CONST(0x00000400) +#define MMU_FTR_BOOK3S_KUAP ASM_CONST(0x00000200) + +/* + * Supports KUEP feature + * key 0 controlling userspace addresses on radix + * Key 3 on hash + */ +#define MMU_FTR_BOOK3S_KUEP ASM_CONST(0x00000400) /* * Support for memory protection keys. @@ -120,11 +129,6 @@ */ #define MMU_FTR_1T_SEGMENT ASM_CONST(0x40000000) -/* - * Supports KUAP (key 0 controlling userspace addresses) on radix - */ -#define MMU_FTR_RADIX_KUAP ASM_CONST(0x80000000) - /* MMU feature bit sets for various CPUs */ #define MMU_FTRS_DEFAULT_HPTE_ARCH_V2 \ MMU_FTR_HPTE_TABLE | MMU_FTR_PPCAS_ARCH_V2 @@ -187,15 +191,15 @@ enum { #ifdef CONFIG_PPC_RADIX_MMU MMU_FTR_TYPE_RADIX | MMU_FTR_GTSE | +#endif /* CONFIG_PPC_RADIX_MMU */ #ifdef CONFIG_PPC_KUAP - MMU_FTR_RADIX_KUAP | + MMU_FTR_BOOK3S_KUAP | #endif /* CONFIG_PPC_KUAP */ -#endif /* CONFIG_PPC_RADIX_MMU */ #ifdef CONFIG_PPC_MEM_KEYS MMU_FTR_PKEY | #endif #ifdef CONFIG_PPC_KUEP - MMU_FTR_KUEP | + MMU_FTR_BOOK3S_KUEP | #endif /* CONFIG_PPC_KUAP */ 0, |