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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2019-02-21 10:37:56 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-02-22 00:10:16 +1100 |
| commit | 2c12393f577396a51b7e0537bd3eb29dcc26dc1b (patch) | |
| tree | 165fddb0dcd2028de8c6b6ce557195adc591fb60 /arch/powerpc/kernel | |
| parent | powerpc/6xx: Store PGDIR physical address in a SPRG (diff) | |
| download | linux-dev-2c12393f577396a51b7e0537bd3eb29dcc26dc1b.tar.xz linux-dev-2c12393f577396a51b7e0537bd3eb29dcc26dc1b.zip | |
powerpc/603: use physical address directly in TLB miss handlers.
Since commit c62ce9ef97ba ("powerpc: remove remaining bits from
CONFIG_APUS"), tophys() has become a pure constant operation.
PAGE_OFFSET is known at compile time so the physical address
can be builtin directly.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/head_32.S | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 2b0a26f66115..4c2cc42399aa 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -505,9 +505,8 @@ InstructionTLBMiss: bge- 112f mfspr r2,SPRN_SRR1 /* and MSR_PR bit from SRR1 */ rlwimi r1,r2,32-12,29,29 /* shift MSR_PR to _PAGE_USER posn */ - lis r2,swapper_pg_dir@ha /* if kernel address, use */ - addi r2,r2,swapper_pg_dir@l /* kernel page table */ - tophys(r2,r2) + lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */ + addi r2, r2, (swapper_pg_dir - PAGE_OFFSET)@l /* kernel page table */ 112: rlwimi r2,r3,12,20,29 /* insert top 10 bits of address */ lwz r2,0(r2) /* get pmd entry */ rlwinm. r2,r2,0,0,19 /* extract address of pte page */ @@ -578,9 +577,8 @@ DataLoadTLBMiss: bge- 112f mfspr r2,SPRN_SRR1 /* and MSR_PR bit from SRR1 */ rlwimi r1,r2,32-12,29,29 /* shift MSR_PR to _PAGE_USER posn */ - lis r2,swapper_pg_dir@ha /* if kernel address, use */ - addi r2,r2,swapper_pg_dir@l /* kernel page table */ - tophys(r2,r2) + lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */ + addi r2, r2, (swapper_pg_dir - PAGE_OFFSET)@l /* kernel page table */ 112: rlwimi r2,r3,12,20,29 /* insert top 10 bits of address */ lwz r2,0(r2) /* get pmd entry */ rlwinm. r2,r2,0,0,19 /* extract address of pte page */ @@ -661,9 +659,8 @@ DataStoreTLBMiss: bge- 112f mfspr r2,SPRN_SRR1 /* and MSR_PR bit from SRR1 */ rlwimi r1,r2,32-12,29,29 /* shift MSR_PR to _PAGE_USER posn */ - lis r2,swapper_pg_dir@ha /* if kernel address, use */ - addi r2,r2,swapper_pg_dir@l /* kernel page table */ - tophys(r2,r2) + lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */ + addi r2, r2, (swapper_pg_dir - PAGE_OFFSET)@l /* kernel page table */ 112: rlwimi r2,r3,12,20,29 /* insert top 10 bits of address */ lwz r2,0(r2) /* get pmd entry */ rlwinm. r2,r2,0,0,19 /* extract address of pte page */ |