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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2017-03-22 04:36:59 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-04-01 12:12:27 +0200 |
| commit | bb1832217a859f6dbe4a45ff2ba7fdcab0bb3958 (patch) | |
| tree | c69f520be8c0f319fdef84b867eb6ab8944198d8 /arch/powerpc/include/asm/paca.h | |
| parent | powerpc/mm: Add addr_limit to mm_context and use it to derive max slice index (diff) | |
| download | linux-bb1832217a859f6dbe4a45ff2ba7fdcab0bb3958.tar.xz linux-bb1832217a859f6dbe4a45ff2ba7fdcab0bb3958.zip | |
powerpc/mm/hash: Store addr_limit in PACA
We optmize the slice page size array copy to paca by copying only the
range based on addr_limit. This will require us to not look at page size
array beyond addr_limit in PACA on slb fault. To enable that copy task
size to paca which will be used during slb fault.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[mpe: Rename from task_size to addr_limit, consolidate #ifdefs]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/paca.h')
| -rw-r--r-- | arch/powerpc/include/asm/paca.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index f48c250339fd..65d0ffb2aa33 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -139,6 +139,7 @@ struct paca_struct { #ifdef CONFIG_PPC_MM_SLICES u64 mm_ctx_low_slices_psize; unsigned char mm_ctx_high_slices_psize[SLICE_ARRAY_SIZE]; + unsigned long addr_limit; #else u16 mm_ctx_user_psize; u16 mm_ctx_sllp; |