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authorIngo Molnar <mingo@kernel.org>2016-11-11 08:27:11 +0100
committerIngo Molnar <mingo@kernel.org>2016-11-11 08:27:11 +0100
commitbfdd5537dcc857eaa04c055ef8afcb8a80dea831 (patch)
tree6336969fb04fcd0db4bcbef529f318a86dc9f7c8 /arch/x86/mm/pat.c
parentsched/core: Explain sleep/wakeup in a better way (diff)
parentMerge tag 'sound-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ti... (diff)
downloadlinux-bfdd5537dcc857eaa04c055ef8afcb8a80dea831.tar.xz
linux-bfdd5537dcc857eaa04c055ef8afcb8a80dea831.zip
Merge branch 'linus' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/mm/pat.c')
-rw-r--r--arch/x86/mm/pat.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 170cc4ff057b..83e701f160a9 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -730,6 +730,20 @@ void io_free_memtype(resource_size_t start, resource_size_t end)
free_memtype(start, end);
}
+int arch_io_reserve_memtype_wc(resource_size_t start, resource_size_t size)
+{
+ enum page_cache_mode type = _PAGE_CACHE_MODE_WC;
+
+ return io_reserve_memtype(start, start + size, &type);
+}
+EXPORT_SYMBOL(arch_io_reserve_memtype_wc);
+
+void arch_io_free_memtype_wc(resource_size_t start, resource_size_t size)
+{
+ io_free_memtype(start, start + size);
+}
+EXPORT_SYMBOL(arch_io_free_memtype_wc);
+
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot)
{