diff options
Diffstat (limited to 'arch/microblaze')
-rw-r--r-- | arch/microblaze/include/asm/highmem.h | 27 | ||||
-rw-r--r-- | arch/microblaze/mm/highmem.c | 21 | ||||
-rw-r--r-- | arch/microblaze/mm/init.c | 3 |
3 files changed, 5 insertions, 46 deletions
diff --git a/arch/microblaze/include/asm/highmem.h b/arch/microblaze/include/asm/highmem.h index 332c78e15198..284ca8fb54c1 100644 --- a/arch/microblaze/include/asm/highmem.h +++ b/arch/microblaze/include/asm/highmem.h @@ -26,7 +26,6 @@ #include <asm/fixmap.h> extern pte_t *kmap_pte; -extern pgprot_t kmap_prot; extern pte_t *pkmap_page_table; /* @@ -51,32 +50,6 @@ extern pte_t *pkmap_page_table; #define PKMAP_NR(virt) ((virt - PKMAP_BASE) >> PAGE_SHIFT) #define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT)) -extern void *kmap_high(struct page *page); -extern void kunmap_high(struct page *page); -extern void *kmap_atomic_prot(struct page *page, pgprot_t prot); -extern void __kunmap_atomic(void *kvaddr); - -static inline void *kmap(struct page *page) -{ - might_sleep(); - if (!PageHighMem(page)) - return page_address(page); - return kmap_high(page); -} - -static inline void kunmap(struct page *page) -{ - BUG_ON(in_interrupt()); - if (!PageHighMem(page)) - return; - kunmap_high(page); -} - -static inline void *kmap_atomic(struct page *page) -{ - return kmap_atomic_prot(page, kmap_prot); -} - #define flush_cache_kmaps() { flush_icache(); flush_dcache(); } #endif /* __KERNEL__ */ diff --git a/arch/microblaze/mm/highmem.c b/arch/microblaze/mm/highmem.c index d7569f77fa15..92e0890416c9 100644 --- a/arch/microblaze/mm/highmem.c +++ b/arch/microblaze/mm/highmem.c @@ -32,18 +32,12 @@ */ #include <asm/tlbflush.h> -void *kmap_atomic_prot(struct page *page, pgprot_t prot) +void *kmap_atomic_high_prot(struct page *page, pgprot_t prot) { unsigned long vaddr; int idx, type; - preempt_disable(); - pagefault_disable(); - if (!PageHighMem(page)) - return page_address(page); - - type = kmap_atomic_idx_push(); idx = type + KM_TYPE_NR*smp_processor_id(); vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); @@ -55,19 +49,16 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot) return (void *) vaddr; } -EXPORT_SYMBOL(kmap_atomic_prot); +EXPORT_SYMBOL(kmap_atomic_high_prot); -void __kunmap_atomic(void *kvaddr) +void kunmap_atomic_high(void *kvaddr) { unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; int type; unsigned int idx; - if (vaddr < __fix_to_virt(FIX_KMAP_END)) { - pagefault_enable(); - preempt_enable(); + if (vaddr < __fix_to_virt(FIX_KMAP_END)) return; - } type = kmap_atomic_idx(); @@ -83,7 +74,5 @@ void __kunmap_atomic(void *kvaddr) local_flush_tlb_page(NULL, vaddr); kmap_atomic_idx_pop(); - pagefault_enable(); - preempt_enable(); } -EXPORT_SYMBOL(__kunmap_atomic); +EXPORT_SYMBOL(kunmap_atomic_high); diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index dcaa53d11339..d943f69784b1 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -49,8 +49,6 @@ unsigned long lowmem_size; #ifdef CONFIG_HIGHMEM pte_t *kmap_pte; EXPORT_SYMBOL(kmap_pte); -pgprot_t kmap_prot; -EXPORT_SYMBOL(kmap_prot); static inline pte_t *virt_to_kpte(unsigned long vaddr) { @@ -68,7 +66,6 @@ static void __init highmem_init(void) pkmap_page_table = virt_to_kpte(PKMAP_BASE); kmap_pte = virt_to_kpte(__fix_to_virt(FIX_KMAP_BEGIN)); - kmap_prot = PAGE_KERNEL; } static void highmem_setup(void) |