From 2c12393f577396a51b7e0537bd3eb29dcc26dc1b Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Thu, 21 Feb 2019 10:37:56 +0000 Subject: [PATCH] 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 Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/head_32.S | 15 ++++++--------- 1 file 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 */ -- 2.25.1