diff options
Diffstat (limited to 'arch/arm/cpu/mmu_32.c')
| -rw-r--r-- | arch/arm/cpu/mmu_32.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/arch/arm/cpu/mmu_32.c b/arch/arm/cpu/mmu_32.c index cc5c92d716..057458bf9a 100644 --- a/arch/arm/cpu/mmu_32.c +++ b/arch/arm/cpu/mmu_32.c @@ -519,10 +519,25 @@ void __mmu_init(bool mmu_on) vectors_init(); + /* + * Early mmu init will have mapped everything but the initial memory area + * (excluding final OPTEE_SIZE bytes) uncached. We have now discovered + * all memory banks, so let's map all pages, excluding reserved memory areas, + * cacheable and executable. + */ for_each_memory_bank(bank) { - create_sections(bank->start, bank->start + bank->size - 1, - PMD_SECT_DEF_CACHED); - __mmu_cache_flush(); + struct resource *rsv; + resource_size_t pos; + + pos = bank->start; + + for_each_reserved_region(bank, rsv) { + arch_remap_range((void *)rsv->start, resource_size(rsv), MAP_UNCACHED); + arch_remap_range((void *)pos, rsv->start - pos, MAP_CACHED); + pos = rsv->end + 1; + } + + arch_remap_range((void *)pos, bank->start + bank->size - pos, MAP_CACHED); } } |