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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-03-10 17:59:07 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-03-10 17:59:07 +0100 |
| commit | baeedc7158da5b0f489d04125ba6adfba532a6f7 (patch) | |
| tree | 1f42b5cd4a961ed10673578a28602dd13d09ab99 /arch/sh | |
| parent | Merge branch 'akpm' (patches from Andrew) (diff) | |
| parent | mm: introduce __p4d_alloc() (diff) | |
| download | linux-baeedc7158da5b0f489d04125ba6adfba532a6f7.tar.xz linux-baeedc7158da5b0f489d04125ba6adfba532a6f7.zip | |
Merge branch 'prep-for-5level'
Merge 5-level page table prep from Kirill Shutemov:
"Here's relatively low-risk part of 5-level paging patchset. Merging it
now will make x86 5-level paging enabling in v4.12 easier.
The first patch is actually x86-specific: detect 5-level paging
support. It boils down to single define.
The rest of patchset converts Linux MMU abstraction from 4- to 5-level
paging.
Enabling of new abstraction in most cases requires adding single line
of code in arch-specific code. The rest is taken care by asm-generic/.
Changes to mm/ code are mostly mechanical: add support for new page
table level -- p4d_t -- where we deal with pud_t now.
v2:
- fix build on microblaze (Michal);
- comment for __ARCH_HAS_5LEVEL_HACK in kasan_populate_zero_shadow();
- acks from Michal"
* emailed patches from Kirill A Shutemov <kirill.shutemov@linux.intel.com>:
mm: introduce __p4d_alloc()
mm: convert generic code to 5-level paging
asm-generic: introduce <asm-generic/pgtable-nop4d.h>
arch, mm: convert all architectures to use 5level-fixup.h
asm-generic: introduce __ARCH_USE_5LEVEL_HACK
asm-generic: introduce 5level-fixup.h
x86/cpufeature: Add 5-level paging detection
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/include/asm/pgtable-2level.h | 1 | ||||
| -rw-r--r-- | arch/sh/include/asm/pgtable-3level.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/sh/include/asm/pgtable-2level.h b/arch/sh/include/asm/pgtable-2level.h index 19bd89db17e7..f75cf4387257 100644 --- a/arch/sh/include/asm/pgtable-2level.h +++ b/arch/sh/include/asm/pgtable-2level.h @@ -1,6 +1,7 @@ #ifndef __ASM_SH_PGTABLE_2LEVEL_H #define __ASM_SH_PGTABLE_2LEVEL_H +#define __ARCH_USE_5LEVEL_HACK #include <asm-generic/pgtable-nopmd.h> /* diff --git a/arch/sh/include/asm/pgtable-3level.h b/arch/sh/include/asm/pgtable-3level.h index 249a985d9648..9b1e776eca31 100644 --- a/arch/sh/include/asm/pgtable-3level.h +++ b/arch/sh/include/asm/pgtable-3level.h @@ -1,6 +1,7 @@ #ifndef __ASM_SH_PGTABLE_3LEVEL_H #define __ASM_SH_PGTABLE_3LEVEL_H +#define __ARCH_USE_5LEVEL_HACK #include <asm-generic/pgtable-nopud.h> /* |