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-rw-r--r--arch/arm/mm/mm-armv.c17
-rw-r--r--arch/arm/mm/proc-v6.S4
2 files changed, 16 insertions, 5 deletions
diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c
index e33fe4229d05..3c655c54e231 100644
--- a/arch/arm/mm/mm-armv.c
+++ b/arch/arm/mm/mm-armv.c
@@ -383,6 +383,7 @@ static void __init build_mem_type_table(void)
383{ 383{
384 struct cachepolicy *cp; 384 struct cachepolicy *cp;
385 unsigned int cr = get_cr(); 385 unsigned int cr = get_cr();
386 unsigned int user_pgprot;
386 int cpu_arch = cpu_architecture(); 387 int cpu_arch = cpu_architecture();
387 int i; 388 int i;
388 389
@@ -408,6 +409,9 @@ static void __init build_mem_type_table(void)
408 } 409 }
409 } 410 }
410 411
412 cp = &cache_policies[cachepolicy];
413 user_pgprot = cp->pte;
414
411 /* 415 /*
412 * ARMv6 and above have extended page tables. 416 * ARMv6 and above have extended page tables.
413 */ 417 */
@@ -426,11 +430,18 @@ static void __init build_mem_type_table(void)
426 mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE; 430 mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
427 mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE; 431 mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
428 432
433 /*
434 * Mark the device area as "shared device"
435 */
429 mem_types[MT_DEVICE].prot_pte |= L_PTE_BUFFERABLE; 436 mem_types[MT_DEVICE].prot_pte |= L_PTE_BUFFERABLE;
430 mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED; 437 mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED;
431 }
432 438
433 cp = &cache_policies[cachepolicy]; 439 /*
440 * User pages need to be mapped with the ASID
441 * (iow, non-global)
442 */
443 user_pgprot |= L_PTE_ASID;
444 }
434 445
435 if (cpu_arch >= CPU_ARCH_ARMv5) { 446 if (cpu_arch >= CPU_ARCH_ARMv5) {
436 mem_types[MT_LOW_VECTORS].prot_pte |= cp->pte & PTE_CACHEABLE; 447 mem_types[MT_LOW_VECTORS].prot_pte |= cp->pte & PTE_CACHEABLE;
@@ -448,7 +459,7 @@ static void __init build_mem_type_table(void)
448 459
449 for (i = 0; i < 16; i++) { 460 for (i = 0; i < 16; i++) {
450 unsigned long v = pgprot_val(protection_map[i]); 461 unsigned long v = pgprot_val(protection_map[i]);
451 v &= (~(PTE_BUFFERABLE|PTE_CACHEABLE)) | cp->pte; 462 v &= (~(PTE_BUFFERABLE|PTE_CACHEABLE)) | user_pgprot;
452 protection_map[i] = __pgprot(v); 463 protection_map[i] = __pgprot(v);
453 } 464 }
454 465
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 75e65522c8d2..3429ddcf65d1 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -133,7 +133,7 @@ ENTRY(cpu_v6_switch_mm)
133ENTRY(cpu_v6_set_pte) 133ENTRY(cpu_v6_set_pte)
134 str r1, [r0], #-2048 @ linux version 134 str r1, [r0], #-2048 @ linux version
135 135
136 bic r2, r1, #0x00000ff0 136 bic r2, r1, #0x000007f0
137 bic r2, r2, #0x00000003 137 bic r2, r2, #0x00000003
138 orr r2, r2, #PTE_EXT_AP0 | 2 138 orr r2, r2, #PTE_EXT_AP0 | 2
139 139
@@ -142,7 +142,7 @@ ENTRY(cpu_v6_set_pte)
142 orreq r2, r2, #PTE_EXT_APX 142 orreq r2, r2, #PTE_EXT_APX
143 143
144 tst r1, #L_PTE_USER 144 tst r1, #L_PTE_USER
145 orrne r2, r2, #PTE_EXT_AP1 | PTE_EXT_NG 145 orrne r2, r2, #PTE_EXT_AP1
146 tstne r2, #PTE_EXT_APX 146 tstne r2, #PTE_EXT_APX
147 bicne r2, r2, #PTE_EXT_APX | PTE_EXT_AP0 147 bicne r2, r2, #PTE_EXT_APX | PTE_EXT_AP0
148 148