diff options
Diffstat (limited to 'arch/xtensa/mm')
| -rw-r--r-- | arch/xtensa/mm/highmem.c | 18 | ||||
| -rw-r--r-- | arch/xtensa/mm/init.c | 4 | ||||
| -rw-r--r-- | arch/xtensa/mm/mmu.c | 3 |
3 files changed, 15 insertions, 10 deletions
diff --git a/arch/xtensa/mm/highmem.c b/arch/xtensa/mm/highmem.c index 0735ca5e8f86..35c4f7d4a333 100644 --- a/arch/xtensa/mm/highmem.c +++ b/arch/xtensa/mm/highmem.c @@ -23,16 +23,16 @@ static void __init kmap_waitqueues_init(void) for (i = 0; i < ARRAY_SIZE(pkmap_map_wait_arr); ++i) init_waitqueue_head(pkmap_map_wait_arr + i); } -#else -static inline void kmap_waitqueues_init(void) -{ -} -#endif static inline enum fixed_addresses kmap_idx(int type, unsigned long color) { - return (type + KM_MAX_IDX * smp_processor_id()) * DCACHE_N_COLORS + - color; + int idx = (type + KM_MAX_IDX * smp_processor_id()) * DCACHE_N_COLORS; + + /* + * The fixmap operates top down, so the color offset needs to be + * reverse as well. + */ + return idx + DCACHE_N_COLORS - 1 - color; } enum fixed_addresses kmap_local_map_idx(int type, unsigned long pfn) @@ -45,6 +45,10 @@ enum fixed_addresses kmap_local_unmap_idx(int type, unsigned long addr) return kmap_idx(type, DCACHE_ALIAS(addr)); } +#else +static inline void kmap_waitqueues_init(void) { } +#endif + void __init kmap_init(void) { /* Check if this memory layout is broken because PKMAP overlaps diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index c6fc83efee0c..0f85666bcbeb 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -147,8 +147,8 @@ void __init mem_init(void) #ifdef CONFIG_HIGHMEM PKMAP_BASE, PKMAP_BASE + LAST_PKMAP * PAGE_SIZE, (LAST_PKMAP*PAGE_SIZE) >> 10, - FIXADDR_START, FIXADDR_TOP, - (FIXADDR_TOP - FIXADDR_START) >> 10, + FIXADDR_START, FIXADDR_END, + (FIXADDR_END - FIXADDR_START) >> 10, #endif PAGE_OFFSET, PAGE_OFFSET + (max_low_pfn - min_low_pfn) * PAGE_SIZE, diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c index fd2193df8a14..7e4d97dc8bd8 100644 --- a/arch/xtensa/mm/mmu.c +++ b/arch/xtensa/mm/mmu.c @@ -52,7 +52,8 @@ static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages) static void __init fixedrange_init(void) { - init_pmd(__fix_to_virt(0), __end_of_fixed_addresses); + BUILD_BUG_ON(FIXADDR_START < TLBTEMP_BASE_1 + TLBTEMP_SIZE); + init_pmd(FIXADDR_START, __end_of_fixed_addresses); } #endif |