diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-03-10 08:59:07 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-03-10 08:59:07 -0800 |
commit | baeedc7158da5b0f489d04125ba6adfba532a6f7 (patch) | |
tree | 1f42b5cd4a961ed10673578a28602dd13d09ab99 /arch/powerpc/include/asm/book3s | |
parent | 8fe3ccaed080a7804bc459c42e0419253973be92 (diff) | |
parent | 90eceff1a375f6ffa78caf8654e787c0a8a591ef (diff) | |
download | op-kernel-dev-baeedc7158da5b0f489d04125ba6adfba532a6f7.zip op-kernel-dev-baeedc7158da5b0f489d04125ba6adfba532a6f7.tar.gz |
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/powerpc/include/asm/book3s')
-rw-r--r-- | arch/powerpc/include/asm/book3s/32/pgtable.h | 1 | ||||
-rw-r--r-- | arch/powerpc/include/asm/book3s/64/pgtable.h | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h index 0122236..26ed228 100644 --- a/arch/powerpc/include/asm/book3s/32/pgtable.h +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h @@ -1,6 +1,7 @@ #ifndef _ASM_POWERPC_BOOK3S_32_PGTABLE_H #define _ASM_POWERPC_BOOK3S_32_PGTABLE_H +#define __ARCH_USE_5LEVEL_HACK #include <asm-generic/pgtable-nopmd.h> #include <asm/book3s/32/hash.h> diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index ec1e731..8f4d419 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -1,9 +1,12 @@ #ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_H_ #define _ASM_POWERPC_BOOK3S_64_PGTABLE_H_ +#include <asm-generic/5level-fixup.h> + #ifndef __ASSEMBLY__ #include <linux/mmdebug.h> #endif + /* * Common bits between hash and Radix page table */ |