[PATCH 03/10] powerpc/603: use physical address directly in TLB miss handlers.

[Christophe Leroy]

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.le...@c-s.fr>
---
 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 dbd15e03952a..53f65124edd5 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -507,9 +507,8 @@ 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 */
@@ -580,9 +579,8 @@ 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 */
@@ -663,9 +661,8 @@ 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 */
-- 
2.13.3