diff options
Diffstat (limited to 'arch/x86/mm/iomap_32.c')
-rw-r--r-- | arch/x86/mm/iomap_32.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c index 04102d42ff42..592984e5496b 100644 --- a/arch/x86/mm/iomap_32.c +++ b/arch/x86/mm/iomap_32.c | |||
@@ -18,6 +18,7 @@ | |||
18 | 18 | ||
19 | #include <asm/iomap.h> | 19 | #include <asm/iomap.h> |
20 | #include <asm/pat.h> | 20 | #include <asm/pat.h> |
21 | #include <asm/highmem.h> | ||
21 | #include <linux/module.h> | 22 | #include <linux/module.h> |
22 | 23 | ||
23 | int is_io_mapping_possible(resource_size_t base, unsigned long size) | 24 | int is_io_mapping_possible(resource_size_t base, unsigned long size) |
@@ -36,11 +37,6 @@ EXPORT_SYMBOL_GPL(is_io_mapping_possible); | |||
36 | void * | 37 | void * |
37 | iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot) | 38 | iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot) |
38 | { | 39 | { |
39 | enum fixed_addresses idx; | ||
40 | unsigned long vaddr; | ||
41 | |||
42 | pagefault_disable(); | ||
43 | |||
44 | /* | 40 | /* |
45 | * For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS. | 41 | * For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS. |
46 | * PAGE_KERNEL_WC maps to PWT, which translates to uncached if the | 42 | * PAGE_KERNEL_WC maps to PWT, which translates to uncached if the |
@@ -50,12 +46,7 @@ iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot) | |||
50 | if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC)) | 46 | if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC)) |
51 | prot = PAGE_KERNEL_UC_MINUS; | 47 | prot = PAGE_KERNEL_UC_MINUS; |
52 | 48 | ||
53 | idx = type + KM_TYPE_NR*smp_processor_id(); | 49 | return kmap_atomic_prot_pfn(pfn, type, prot); |
54 | vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); | ||
55 | set_pte(kmap_pte-idx, pfn_pte(pfn, prot)); | ||
56 | arch_flush_lazy_mmu_mode(); | ||
57 | |||
58 | return (void*) vaddr; | ||
59 | } | 50 | } |
60 | EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn); | 51 | EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn); |
61 | 52 | ||