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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-09-06 16:19:08 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-01 15:40:52 (GMT) |
| commit | da0916539d20f257dfa46784357300e49d6bfd00 (patch) | |
| tree | e581749819a4a7e5aea471c242a51773a360bd1d /arch/arm/mm/proc-xsc3.S | |
| parent | 1ad77a876da48331451698cc4172c90ab9b6372f (diff) | |
| download | linux-da0916539d20f257dfa46784357300e49d6bfd00.tar.xz | |
[ARM] Convert set_pte_ext implementions to macros
There are actually only four separate implementations of set_pte_ext.
Use assembler macros to insert code for these into the proc-*.S files.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/proc-xsc3.S')
| -rw-r--r-- | arch/arm/mm/proc-xsc3.S | 30 |
1 files changed, 6 insertions, 24 deletions
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S index 7bd9e71..ad1ce5a 100644 --- a/arch/arm/mm/proc-xsc3.S +++ b/arch/arm/mm/proc-xsc3.S @@ -349,34 +349,16 @@ ENTRY(cpu_xsc3_switch_mm) */ .align 5 ENTRY(cpu_xsc3_set_pte_ext) - str r1, [r0], #-2048 @ linux version - - bic r2, r1, #0xff0 @ keep C, B bits - orr r2, r2, #PTE_TYPE_EXT @ extended page - tst r1, #L_PTE_SHARED @ shared? - orrne r2, r2, #0x200 - - 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 @ If it's cacheable, it needs to be in L2 also. - eor ip, r1, #L_PTE_CACHEABLE - tst ip, #L_PTE_CACHEABLE - orreq r2, r2, #PTE_EXT_TEX(0x5) + tst r1, #L_PTE_CACHEABLE + orrne r2, r2, #PTE_EXT_TEX(0x5) - tst r3, #L_PTE_PRESENT | L_PTE_YOUNG @ present and young? - movne r2, #0 @ no -> fault + tst r1, #L_PTE_SHARED @ shared? + orrne r2, r2, #0x200 - str r2, [r0] @ hardware version - mov ip, #0 - mcr p15, 0, r0, c7, c10, 1 @ clean L1 D line - mcr p15, 0, ip, c7, c10, 4 @ data write barrier + xscale_set_pte_ext_epilogue mov pc, lr .ltorg |