---

yaml
---
r: 11142
b: refs/heads/master
c: 6008026
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 129bc8f78b468df6824dd1584829f10aa3a69c27
+refs/heads/master: 60080265a13ea43f0ebdcd25671dcab05ed01308

trunk/arch/mips/mm/highmem.c

@@ -83,6 +83,25 @@ void __kunmap_atomic(void *kvaddr, enum km_type type)
 	preempt_check_resched();
 }
 
+/*
+ * This is the same as kmap_atomic() but can map memory that doesn't
+ * have a struct page associated with it.
+ */
+void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+{
+	enum fixed_addresses idx;
+	unsigned long vaddr;
+
+	inc_preempt_count();
+
+	idx = type + KM_TYPE_NR*smp_processor_id();
+	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+	set_pte(kmap_pte-idx, pfn_pte(pfn, kmap_prot));
+	flush_tlb_one(vaddr);
+
+	return (void*) vaddr;
+}
+
 struct page *__kmap_atomic_to_page(void *ptr)
 {
 	unsigned long idx, vaddr = (unsigned long)ptr;

trunk/include/asm-mips/highmem.h

@@ -75,6 +75,7 @@ static inline void *kmap_atomic(struct page *page, enum km_type type)
 }
 
 static inline void kunmap_atomic(void *kvaddr, enum km_type type) { }
+#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
 
 #define kmap_atomic_to_page(ptr) virt_to_page(ptr)
 
@@ -86,6 +87,7 @@ extern void *__kmap(struct page *page);
 extern void __kunmap(struct page *page);
 extern void *__kmap_atomic(struct page *page, enum km_type type);
 extern void __kunmap_atomic(void *kvaddr, enum km_type type);
+extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
 extern struct page *__kmap_atomic_to_page(void *ptr);
 
 #define kmap			__kmap