47 #include <linux/page.h>
51 static inline struct page *
59 kmap(struct page *page)  in kmap()  argument
64 		return ((void *)PHYS_TO_DMAP(page_to_phys(page)));  in kmap()
67 		sf = sf_buf_alloc(page, SFB_NOWAIT | SFB_CPUPRIVATE);  in kmap()
77 kmap_atomic_prot(struct page *page, pgprot_t prot)  in kmap_atomic_prot()  argument
82 		page->flags |= PG_FICTITIOUS;  in kmap_atomic_prot()
83 		pmap_page_set_memattr(page, attr);  in kmap_atomic_prot()
85 	return (kmap(page));  in kmap_atomic_prot()
89 kmap_atomic(struct page *page)  in kmap_atomic()  argument
92 	return (kmap_atomic_prot(page, VM_PROT_ALL));  in kmap_atomic()
96 kmap_local_page(struct page *page)  in kmap_local_page()  argument
98 	return (kmap(page));  in kmap_local_page()
102 kmap_local_page_prot(struct page *page, pgprot_t prot)  in kmap_local_page_prot()  argument
105 	return (kmap_atomic_prot(page, prot));  in kmap_local_page_prot()
109 kunmap(struct page *page)  in kunmap()  argument
115 		sf = sf_buf_alloc(page, SFB_NOWAIT | SFB_CPUPRIVATE);  in kunmap()
141 memcpy_from_page(char *to, struct page *page, size_t offset, size_t len)  in memcpy_from_page()  argument
146 	    ("%s: memcpy from page %p to address %p: "  in memcpy_from_page()
147 	     "offset+len (%zu+%zu) would go beyond page end",  in memcpy_from_page()
148 	     __func__, page, to, offset, len));  in memcpy_from_page()
150 	from = kmap_local_page(page);  in memcpy_from_page()
156 memcpy_to_page(struct page *page, size_t offset, const char *from, size_t len)  in memcpy_to_page()  argument
161 	    ("%s: memcpy from address %p to page %p: "  in memcpy_to_page()
162 	     "offset+len (%zu+%zu) would go beyond page end",  in memcpy_to_page()
163 	     __func__, from, page, offset, len));  in memcpy_to_page()
165 	to = kmap_local_page(page);  in memcpy_to_page()