From 2497f0a8125e307cf1fd4222bab53f66305eba27 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 21 Apr 2007 09:59:44 +0100 Subject: [PATCH] [ARM] mm 1: Combine mem_type domain into prot_* at init time Rather than combining the domain for a particular memory type with the protection information each time we want to use it, do so when we fix up the mem_type array at initialisation time. Rename struct mem_types to be mem_type - each structure is one memory type description, not several. Signed-off-by: Russell King --- arch/arm/mm/mmu.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 94fd4bf5cb..6178be0242 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -176,14 +176,14 @@ void adjust_cr(unsigned long mask, unsigned long set) } #endif -struct mem_types { +struct mem_type { unsigned int prot_pte; unsigned int prot_l1; unsigned int prot_sect; unsigned int domain; }; -static struct mem_types mem_types[] __initdata = { +static struct mem_type mem_types[] __initdata = { [MT_DEVICE] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_WRITE, @@ -368,6 +368,14 @@ static void __init build_mem_type_table(void) } printk("Memory policy: ECC %sabled, Data cache %s\n", ecc_mask ? "en" : "dis", cp->policy); + + for (i = 0; i < ARRAY_SIZE(mem_types); i++) { + struct mem_type *t = &mem_types[i]; + if (t->prot_l1) + t->prot_l1 |= PMD_DOMAIN(t->domain); + if (t->prot_sect) + t->prot_sect |= PMD_DOMAIN(t->domain); + } } #define vectors_base() (vectors_high() ? 0xffff0000 : 0) @@ -458,8 +466,8 @@ void __init create_mapping(struct map_desc *md) domain = mem_types[md->type].domain; prot_pte = __pgprot(mem_types[md->type].prot_pte); - prot_l1 = mem_types[md->type].prot_l1 | PMD_DOMAIN(domain); - prot_sect = mem_types[md->type].prot_sect | PMD_DOMAIN(domain); + prot_l1 = mem_types[md->type].prot_l1; + prot_sect = mem_types[md->type].prot_sect; /* * Catch 36-bit addresses -- 2.39.5