diff options
Diffstat (limited to 'arch/arm/mm/proc-xscale.S')
| -rw-r--r-- | arch/arm/mm/proc-xscale.S | 30 |
1 files changed, 5 insertions, 25 deletions
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index 2dd85273976..8d7512f9cba 100644 --- a/arch/arm/mm/proc-xscale.S +++ b/arch/arm/mm/proc-xscale.S @@ -433,20 +433,7 @@ ENTRY(cpu_xscale_switch_mm) */ .align 5 ENTRY(cpu_xscale_set_pte_ext) - str r1, [r0], #-2048 @ linux version - - bic r2, r1, #0xff0 - orr r2, r2, #PTE_TYPE_EXT @ extended page - - eor r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - tst r3, #L_PTE_USER @ User? - orrne r2, r2, #PTE_EXT_AP_URO_SRW @ yes -> user r/o, system r/w - - tst r3, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_EXT_AP_UNO_SRW @ yes -> user n/a, system r/w - @ combined with user -> user r/w - + xscale_set_pte_ext_prologue @ @ Handle the X bit. We want to set this bit for the minicache @ (U = E = B = W = 0, C = 1) or when write allocate is enabled, @@ -456,11 +443,10 @@ ENTRY(cpu_xscale_set_pte_ext) @ @ X = (C & ~W & ~B) | (C & W & B & write_allocate) @ - eor ip, r1, #L_PTE_CACHEABLE - tst ip, #L_PTE_CACHEABLE | L_PTE_WRITE | L_PTE_BUFFERABLE + and ip, r1, #L_PTE_CACHEABLE | L_PTE_WRITE | L_PTE_BUFFERABLE + teq ip, #L_PTE_CACHEABLE #if PTE_CACHE_WRITE_ALLOCATE - eorne ip, r1, #L_PTE_CACHEABLE | L_PTE_WRITE | L_PTE_BUFFERABLE - tstne ip, #L_PTE_CACHEABLE | L_PTE_WRITE | L_PTE_BUFFERABLE + teqne ip, #L_PTE_CACHEABLE | L_PTE_WRITE | L_PTE_BUFFERABLE #endif orreq r2, r2, #PTE_EXT_TEX(1) @@ -474,13 +460,7 @@ ENTRY(cpu_xscale_set_pte_ext) teq ip, #L_PTE_USER | L_PTE_CACHEABLE biceq r2, r2, #PTE_BUFFERABLE - tst r3, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 @ no -> fault - - str r2, [r0] @ hardware version - mov ip, #0 - mcr p15, 0, r0, c7, c10, 1 @ Clean D cache line - mcr p15, 0, ip, c7, c10, 4 @ Drain Write (& Fill) Buffer + xscale_set_pte_ext_epilogue mov pc, lr |