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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-11-24 22:51:56 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-09 15:48:14 +0300 |
| commit | fec6166b44ded68e68144144a02e498580118f1a (patch) | |
| tree | 37a145e67b338ba97682c4e47a05648334e4fb28 /arch/powerpc/mm/book3s32/hash_low.S | |
| parent | c5ccb4e78968fbe64f938a5a012fc8ec25cafabf (diff) | |
| download | linux-fec6166b44ded68e68144144a02e498580118f1a.tar.xz | |
powerpc/32s: In add_hash_page(), calculate VSID later
VSID is only for create_hpte(). When _PAGE_HASHPTE is
already set, add_hash_page() bails out without calling
create_hpte() and doesn't need the value of VSID.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3907199974c89b85a3441cf3f528751173b7649c.1606247495.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/mm/book3s32/hash_low.S')
| -rw-r--r-- | arch/powerpc/mm/book3s32/hash_low.S | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/powerpc/mm/book3s32/hash_low.S b/arch/powerpc/mm/book3s32/hash_low.S index 6c350c5e369e..b0bb9d193400 100644 --- a/arch/powerpc/mm/book3s32/hash_low.S +++ b/arch/powerpc/mm/book3s32/hash_low.S @@ -182,12 +182,6 @@ _GLOBAL(add_hash_page) mflr r0 stw r0,4(r1) - /* Convert context and va to VSID */ - mulli r3,r3,897*16 /* multiply context by context skew */ - rlwinm r0,r4,4,28,31 /* get ESID (top 4 bits of va) */ - mulli r0,r0,0x111 /* multiply by ESID skew */ - add r3,r3,r0 /* note create_hpte trims to 24 bits */ - #ifdef CONFIG_SMP lwz r8,TASK_CPU(r2) /* to go in mmu_hash_lock */ oris r8,r8,12 @@ -251,6 +245,12 @@ _GLOBAL(add_hash_page) stwcx. r5,0,r8 bne- 1b + /* Convert context and va to VSID */ + mulli r3,r3,897*16 /* multiply context by context skew */ + rlwinm r0,r4,4,28,31 /* get ESID (top 4 bits of va) */ + mulli r0,r0,0x111 /* multiply by ESID skew */ + add r3,r3,r0 /* note create_hpte trims to 24 bits */ + bl create_hpte 9: |