diff options
| author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-08-10 11:05:28 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-08-10 11:05:28 -0700 |
| commit | 435d444a532af652ba8bdfd4db4424982bea2f69 (patch) | |
| tree | a6baaf42fe41c22fd08b8ffab612194bb1c7004a /arch/arm/mm/mm-armv.c | |
| parent | 22d0def9d09111513f5a8d38583210620f97d710 (diff) | |
| parent | 484ae6bd9506488089c33784eff35b190fa80e03 (diff) | |
Merge master.kernel.org:/home/rmk/linux-2.6-arm
Diffstat (limited to 'arch/arm/mm/mm-armv.c')
| -rw-r--r-- | arch/arm/mm/mm-armv.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c index e33fe4229d0..3c655c54e23 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) { struct cachepolicy *cp; unsigned int cr = get_cr(); + unsigned int user_pgprot; int cpu_arch = cpu_architecture(); int i; @@ -408,6 +409,9 @@ static void __init build_mem_type_table(void) } } + cp = &cache_policies[cachepolicy]; + user_pgprot = cp->pte; + /* * ARMv6 and above have extended page tables. */ @@ -426,11 +430,18 @@ static void __init build_mem_type_table(void) mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE; mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE; + /* + * Mark the device area as "shared device" + */ mem_types[MT_DEVICE].prot_pte |= L_PTE_BUFFERABLE; mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED; - } - cp = &cache_policies[cachepolicy]; + /* + * User pages need to be mapped with the ASID + * (iow, non-global) + */ + user_pgprot |= L_PTE_ASID; + } if (cpu_arch >= CPU_ARCH_ARMv5) { mem_types[MT_LOW_VECTORS].prot_pte |= cp->pte & PTE_CACHEABLE; @@ -448,7 +459,7 @@ static void __init build_mem_type_table(void) for (i = 0; i < 16; i++) { unsigned long v = pgprot_val(protection_map[i]); - v &= (~(PTE_BUFFERABLE|PTE_CACHEABLE)) | cp->pte; + v &= (~(PTE_BUFFERABLE|PTE_CACHEABLE)) | user_pgprot; protection_map[i] = __pgprot(v); } |