diff options
| -rw-r--r-- | arch/arm/mm/proc-arm1020.S | 24 | ||||
| -rw-r--r-- | arch/arm/mm/proc-arm1020e.S | 24 | ||||
| -rw-r--r-- | arch/arm/mm/proc-arm1022.S | 24 | ||||
| -rw-r--r-- | arch/arm/mm/proc-arm1026.S | 24 | ||||
| -rw-r--r-- | arch/arm/mm/proc-arm6_7.S | 25 | ||||
| -rw-r--r-- | arch/arm/mm/proc-arm720.S | 23 | ||||
| -rw-r--r-- | arch/arm/mm/proc-arm920.S | 26 | ||||
| -rw-r--r-- | arch/arm/mm/proc-arm922.S | 24 | ||||
| -rw-r--r-- | arch/arm/mm/proc-arm925.S | 24 | ||||
| -rw-r--r-- | arch/arm/mm/proc-arm926.S | 24 | ||||
| -rw-r--r-- | arch/arm/mm/proc-feroceon.S | 19 | ||||
| -rw-r--r-- | arch/arm/mm/proc-macros.S | 144 | ||||
| -rw-r--r-- | arch/arm/mm/proc-sa110.S | 19 | ||||
| -rw-r--r-- | arch/arm/mm/proc-sa1100.S | 19 | ||||
| -rw-r--r-- | arch/arm/mm/proc-v6.S | 38 | ||||
| -rw-r--r-- | arch/arm/mm/proc-v7.S | 38 | ||||
| -rw-r--r-- | arch/arm/mm/proc-xsc3.S | 30 | ||||
| -rw-r--r-- | arch/arm/mm/proc-xscale.S | 30 |
18 files changed, 177 insertions, 402 deletions
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S index 5673f4d..453f828 100644 --- a/arch/arm/mm/proc-arm1020.S +++ b/arch/arm/mm/proc-arm1020.S @@ -399,29 +399,7 @@ ENTRY(cpu_arm1020_switch_mm) .align 5 ENTRY(cpu_arm1020_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - -#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH - eor r3, r1, #0x0a @ C & small page? - tst r3, #0x0b - biceq r2, r2, #4 -#endif - str r2, [r0] @ hardware version + armv3_set_pte_ext mov r0, r0 #ifndef CONFIG_CPU_DCACHE_DISABLE mcr p15, 0, r0, c7, c10, 4 diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S index 4343fdb..a226dd3 100644 --- a/arch/arm/mm/proc-arm1020e.S +++ b/arch/arm/mm/proc-arm1020e.S @@ -383,29 +383,7 @@ ENTRY(cpu_arm1020e_switch_mm) .align 5 ENTRY(cpu_arm1020e_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - -#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH - eor r3, r1, #0x0a @ C & small page? - tst r3, #0x0b - biceq r2, r2, #4 -#endif - str r2, [r0] @ hardware version + armv3_set_pte_ext mov r0, r0 #ifndef CONFIG_CPU_DCACHE_DISABLE mcr p15, 0, r0, c7, c10, 1 @ clean D entry diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S index 2a4ea16..68db8c5 100644 --- a/arch/arm/mm/proc-arm1022.S +++ b/arch/arm/mm/proc-arm1022.S @@ -365,29 +365,7 @@ ENTRY(cpu_arm1022_switch_mm) .align 5 ENTRY(cpu_arm1022_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - -#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH - eor r3, r1, #0x0a @ C & small page? - tst r3, #0x0b - biceq r2, r2, #4 -#endif - str r2, [r0] @ hardware version + armv3_set_pte_ext mov r0, r0 #ifndef CONFIG_CPU_DCACHE_DISABLE mcr p15, 0, r0, c7, c10, 1 @ clean D entry diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S index 77a1bab..c02f303 100644 --- a/arch/arm/mm/proc-arm1026.S +++ b/arch/arm/mm/proc-arm1026.S @@ -354,29 +354,7 @@ ENTRY(cpu_arm1026_switch_mm) .align 5 ENTRY(cpu_arm1026_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - -#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH - eor r3, r1, #0x0a @ C & small page? - tst r3, #0x0b - biceq r2, r2, #4 -#endif - str r2, [r0] @ hardware version + armv3_set_pte_ext mov r0, r0 #ifndef CONFIG_CPU_DCACHE_DISABLE mcr p15, 0, r0, c7, c10, 1 @ clean D entry diff --git a/arch/arm/mm/proc-arm6_7.S b/arch/arm/mm/proc-arm6_7.S index c371fc8..5e78c48 100644 --- a/arch/arm/mm/proc-arm6_7.S +++ b/arch/arm/mm/proc-arm6_7.S @@ -20,6 +20,8 @@ #include <asm/pgtable.h> #include <asm/ptrace.h> +#include "proc-macros.S" + ENTRY(cpu_arm6_dcache_clean_area) ENTRY(cpu_arm7_dcache_clean_area) mov pc, lr @@ -214,30 +216,13 @@ ENTRY(cpu_arm7_switch_mm) * : r1 = value to set * Purpose : Set a PTE and flush it out of any WB cache */ - .align 5 + .align 5 ENTRY(cpu_arm6_set_pte_ext) ENTRY(cpu_arm7_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young - movne r2, #0 - - str r2, [r0] @ hardware version + armv3_set_pte_ext wc_disable=0 #endif /* CONFIG_MMU */ - mov pc, lr + mov pc, lr /* * Function: _arm6_7_reset diff --git a/arch/arm/mm/proc-arm720.S b/arch/arm/mm/proc-arm720.S index eda733d..6d3e062 100644 --- a/arch/arm/mm/proc-arm720.S +++ b/arch/arm/mm/proc-arm720.S @@ -93,29 +93,12 @@ ENTRY(cpu_arm720_switch_mm) * : r1 = value to set * Purpose : Set a PTE and flush it out of any WB cache */ - .align 5 + .align 5 ENTRY(cpu_arm720_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young - movne r2, #0 - - str r2, [r0] @ hardware version + armv3_set_pte_ext wc_disable=0 #endif - mov pc, lr + mov pc, lr /* * Function: arm720_reset diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S index 28cdb06..260595b 100644 --- a/arch/arm/mm/proc-arm920.S +++ b/arch/arm/mm/proc-arm920.S @@ -351,33 +351,11 @@ ENTRY(cpu_arm920_switch_mm) .align 5 ENTRY(cpu_arm920_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - -#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH - eor r3, r2, #0x0a @ C & small page? - tst r3, #0x0b - biceq r2, r2, #4 -#endif - str r2, [r0] @ hardware version + armv3_set_pte_ext mov r0, r0 mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c10, 4 @ drain WB -#endif /* CONFIG_MMU */ +#endif mov pc, lr __INIT diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S index 94ddcb4..0428f77b 100644 --- a/arch/arm/mm/proc-arm922.S +++ b/arch/arm/mm/proc-arm922.S @@ -355,29 +355,7 @@ ENTRY(cpu_arm922_switch_mm) .align 5 ENTRY(cpu_arm922_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - -#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH - eor r3, r2, #0x0a @ C & small page? - tst r3, #0x0b - biceq r2, r2, #4 -#endif - str r2, [r0] @ hardware version + armv3_set_pte_ext mov r0, r0 mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c10, 4 @ drain WB diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S index d045812..3019478 100644 --- a/arch/arm/mm/proc-arm925.S +++ b/arch/arm/mm/proc-arm925.S @@ -398,29 +398,7 @@ ENTRY(cpu_arm925_switch_mm) .align 5 ENTRY(cpu_arm925_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - -#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH - eor r3, r2, #0x0a @ C & small page? - tst r3, #0x0b - biceq r2, r2, #4 -#endif - str r2, [r0] @ hardware version + armv3_set_pte_ext mov r0, r0 #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH mcr p15, 0, r0, c7, c10, 1 @ clean D entry diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S index 4cd3316..10e6ac2 100644 --- a/arch/arm/mm/proc-arm926.S +++ b/arch/arm/mm/proc-arm926.S @@ -359,29 +359,7 @@ ENTRY(cpu_arm926_switch_mm) .align 5 ENTRY(cpu_arm926_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - -#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH - eor r3, r2, #0x0a @ C & small page? - tst r3, #0x0b - biceq r2, r2, #4 -#endif - str r2, [r0] @ hardware version + armv3_set_pte_ext mov r0, r0 #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH mcr p15, 0, r0, c7, c10, 1 @ clean D entry diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index f2e5884..240366e 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -446,24 +446,7 @@ ENTRY(cpu_feroceon_switch_mm) .align 5 ENTRY(cpu_feroceon_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - - str r2, [r0] @ hardware version + armv3_set_pte_ext wc_disable=0 mov r0, r0 mcr p15, 0, r0, c7, c10, 1 @ clean D entry #if defined(CONFIG_CACHE_FEROCEON_L2) && !defined(CONFIG_L2_CACHE_WRITETHROUGH) diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S index b131500..d1be253 100644 --- a/arch/arm/mm/proc-macros.S +++ b/arch/arm/mm/proc-macros.S @@ -71,3 +71,147 @@ mov \reg, #16 @ size offset mov \reg, \reg, lsl \tmp @ actual cache line size .endm + + +/* + * Sanity check the PTE configuration for the code below - which makes + * certain assumptions about how these bits are layed out. + */ +#if L_PTE_SHARED != PTE_EXT_SHARED +#error PTE shared bit mismatch +#endif +#if L_PTE_BUFFERABLE != PTE_BUFFERABLE +#error PTE bufferable bit mismatch +#endif +#if L_PTE_CACHEABLE != PTE_CACHEABLE +#error PTE cacheable bit mismatch +#endif +#if (L_PTE_EXEC+L_PTE_USER+L_PTE_WRITE+L_PTE_DIRTY+L_PTE_YOUNG+\ + L_PTE_FILE+L_PTE_PRESENT) > L_PTE_SHARED +#error Invalid Linux PTE bit settings +#endif + +/* + * The ARMv6 and ARMv7 set_pte_ext translation function. + * + * Permission translation: + * YUWD APX AP1 AP0 SVC User + * 0xxx 0 0 0 no acc no acc + * 100x 1 0 1 r/o no acc + * 10x0 1 0 1 r/o no acc + * 1011 0 0 1 r/w no acc + * 110x 0 1 0 r/w r/o + * 11x0 0 1 0 r/w r/o + * 1111 0 1 1 r/w r/w + */ + .macro armv6_set_pte_ext + str r1, [r0], #-2048 @ linux version + + bic r3, r1, #0x000003f0 + bic r3, r3, #PTE_TYPE_MASK + orr r3, r3, r2 + orr r3, r3, #PTE_EXT_AP0 | 2 + + tst r1, #L_PTE_WRITE + tstne r1, #L_PTE_DIRTY + orreq r3, r3, #PTE_EXT_APX + + tst r1, #L_PTE_USER + orrne r3, r3, #PTE_EXT_AP1 + tstne r3, #PTE_EXT_APX + bicne r3, r3, #PTE_EXT_APX | PTE_EXT_AP0 + + tst r1, #L_PTE_EXEC + orreq r3, r3, #PTE_EXT_XN + + tst r1, #L_PTE_YOUNG + tstne r1, #L_PTE_PRESENT + moveq r3, #0 + + str r3, [r0] + mcr p15, 0, r0, c7, c10, 1 @ flush_pte + .endm + + +/* + * The ARMv3, ARMv4 and ARMv5 set_pte_ext translation function, + * covering most CPUs except Xscale and Xscale 3. + * + * Permission translation: + * YUWD AP SVC User + * 0xxx 0x00 no acc no acc + * 100x 0x00 r/o no acc + * 10x0 0x00 r/o no acc + * 1011 0x55 r/w no acc + * 110x 0xaa r/w r/o + * 11x0 0xaa r/w r/o + * 1111 0xff r/w r/w + */ + .macro armv3_set_pte_ext wc_disable=1 + str r1, [r0], #-2048 @ linux version + + eor r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY + + bic r2, r1, #PTE_SMALL_AP_MASK @ keep C, B bits + bic r2, r2, #PTE_TYPE_MASK + orr r2, r2, #PTE_TYPE_SMALL + + tst r3, #L_PTE_USER @ user? + orrne r2, r2, #PTE_SMALL_AP_URO_SRW + + tst r3, #L_PTE_WRITE | L_PTE_DIRTY @ write and dirty? + orreq r2, r2, #PTE_SMALL_AP_UNO_SRW + + tst r3, #L_PTE_PRESENT | L_PTE_YOUNG @ present and young? + movne r2, #0 + + .if \wc_disable +#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH + tst r2, #PTE_CACHEABLE + bicne r2, r2, #PTE_BUFFERABLE +#endif + .endif + str r2, [r0] @ hardware version + .endm + + +/* + * Xscale set_pte_ext translation, split into two halves to cope + * with work-arounds. r3 must be preserved by code between these + * two macros. + * + * Permission translation: + * YUWD AP SVC User + * 0xxx 00 no acc no acc + * 100x 00 r/o no acc + * 10x0 00 r/o no acc + * 1011 01 r/w no acc + * 110x 10 r/w r/o + * 11x0 10 r/w r/o + * 1111 11 r/w r/w + */ + .macro xscale_set_pte_ext_prologue + str r1, [r0], #-2048 @ linux version + + eor r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY + + bic r2, r1, #PTE_SMALL_AP_MASK @ keep C, B bits + orr r2, r2, #PTE_TYPE_EXT @ extended page + + 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 + .endm + + .macro xscale_set_pte_ext_epilogue + 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 L1 D line + mcr p15, 0, ip, c7, c10, 4 @ data write barrier + .endm diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S index bbe1057..df3aebbb 100644 --- a/arch/arm/mm/proc-sa110.S +++ b/arch/arm/mm/proc-sa110.S @@ -153,24 +153,7 @@ ENTRY(cpu_sa110_switch_mm) .align 5 ENTRY(cpu_sa110_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - - str r2, [r0] @ hardware version + armv3_set_pte_ext wc_disable=0 mov r0, r0 mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c10, 4 @ drain WB diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S index 871ba01..8e85e7c 100644 --- a/arch/arm/mm/proc-sa1100.S +++ b/arch/arm/mm/proc-sa1100.S @@ -166,24 +166,7 @@ ENTRY(cpu_sa1100_switch_mm) .align 5 ENTRY(cpu_sa1100_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - eor r1, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY - - bic r2, r1, #PTE_SMALL_AP_MASK - bic r2, r2, #PTE_TYPE_MASK - orr r2, r2, #PTE_TYPE_SMALL - - tst r1, #L_PTE_USER @ User? - orrne r2, r2, #PTE_SMALL_AP_URO_SRW - - tst r1, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? - orreq r2, r2, #PTE_SMALL_AP_UNO_SRW - - tst r1, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? - movne r2, #0 - - str r2, [r0] @ hardware version + armv3_set_pte_ext wc_disable=0 mov r0, r0 mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c10, 4 @ drain WB diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index 5702ec5..70c6235 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -114,46 +114,10 @@ ENTRY(cpu_v6_switch_mm) * (hardware version is stored at -1024 bytes) * - pte - PTE value to store * - ext - value for extended PTE bits - * - * Permissions: - * YUWD APX AP1 AP0 SVC User - * 0xxx 0 0 0 no acc no acc - * 100x 1 0 1 r/o no acc - * 10x0 1 0 1 r/o no acc - * 1011 0 0 1 r/w no acc - * 110x 0 1 0 r/w r/o - * 11x0 0 1 0 r/w r/o - * 1111 0 1 1 r/w r/w */ ENTRY(cpu_v6_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - bic r3, r1, #0x000003f0 - bic r3, r3, #0x00000003 - orr r3, r3, r2 - orr r3, r3, #PTE_EXT_AP0 | 2 - - tst r1, #L_PTE_WRITE - tstne r1, #L_PTE_DIRTY - orreq r3, r3, #PTE_EXT_APX - - tst r1, #L_PTE_USER - orrne r3, r3, #PTE_EXT_AP1 - tstne r3, #PTE_EXT_APX - bicne r3, r3, #PTE_EXT_APX | PTE_EXT_AP0 - - tst r1, #L_PTE_YOUNG - biceq r3, r3, #PTE_EXT_APX | PTE_EXT_AP_MASK - - tst r1, #L_PTE_EXEC - orreq r3, r3, #PTE_EXT_XN - - tst r1, #L_PTE_PRESENT - moveq r3, #0 - - str r3, [r0] - mcr p15, 0, r0, c7, c10, 1 @ flush_pte + armv6_set_pte_ext #endif mov pc, lr diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index b49f9a4..172e2ee 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -99,46 +99,10 @@ ENTRY(cpu_v7_switch_mm) * (hardware version is stored at -1024 bytes) * - pte - PTE value to store * - ext - value for extended PTE bits - * - * Permissions: - * YUWD APX AP1 AP0 SVC User - * 0xxx 0 0 0 no acc no acc - * 100x 1 0 1 r/o no acc - * 10x0 1 0 1 r/o no acc - * 1011 0 0 1 r/w no acc - * 110x 0 1 0 r/w r/o - * 11x0 0 1 0 r/w r/o - * 1111 0 1 1 r/w r/w */ ENTRY(cpu_v7_set_pte_ext) #ifdef CONFIG_MMU - str r1, [r0], #-2048 @ linux version - - bic r3, r1, #0x000003f0 - bic r3, r3, #0x00000003 - orr r3, r3, r2 - orr r3, r3, #PTE_EXT_AP0 | 2 - - tst r1, #L_PTE_WRITE - tstne r1, #L_PTE_DIRTY - orreq r3, r3, #PTE_EXT_APX - - tst r1, #L_PTE_USER - orrne r3, r3, #PTE_EXT_AP1 - tstne r3, #PTE_EXT_APX - bicne r3, r3, #PTE_EXT_APX | PTE_EXT_AP0 - - tst r1, #L_PTE_YOUNG - biceq r3, r3, #PTE_EXT_APX | PTE_EXT_AP_MASK - - tst r1, #L_PTE_EXEC - orreq r3, r3, #PTE_EXT_XN - - tst r1, #L_PTE_PRESENT - moveq r3, #0 - - str r3, [r0] - mcr p15, 0, r0, c7, c10, 1 @ flush_pte + armv6_set_pte_ext #endif mov pc, lr 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 diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index 2dd8527..8d7512f 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 |
