forked from ~ljy/RK356X_SDK_RELEASE

hc
2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e
kernel/arch/microblaze/include/asm/highmem.h
....@@ -26,7 +26,6 @@
2626 #include <asm/fixmap.h>
2727
2828 extern pte_t *kmap_pte;
29
-extern pgprot_t kmap_prot;
3029 extern pte_t *pkmap_page_table;
3130
3231 /*
....@@ -50,32 +49,6 @@
5049 #define LAST_PKMAP_MASK (LAST_PKMAP - 1)
5150 #define PKMAP_NR(virt) ((virt - PKMAP_BASE) >> PAGE_SHIFT)
5251 #define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT))
53
-
54
-extern void *kmap_high(struct page *page);
55
-extern void kunmap_high(struct page *page);
56
-extern void *kmap_atomic_prot(struct page *page, pgprot_t prot);
57
-extern void __kunmap_atomic(void *kvaddr);
58
-
59
-static inline void *kmap(struct page *page)
60
-{
61
- might_sleep();
62
- if (!PageHighMem(page))
63
- return page_address(page);
64
- return kmap_high(page);
65
-}
66
-
67
-static inline void kunmap(struct page *page)
68
-{
69
- BUG_ON(in_interrupt());
70
- if (!PageHighMem(page))
71
- return;
72
- kunmap_high(page);
73
-}
74
-
75
-static inline void *kmap_atomic(struct page *page)
76
-{
77
- return kmap_atomic_prot(page, kmap_prot);
78
-}
7952
8053 #define flush_cache_kmaps() { flush_icache(); flush_dcache(); }
8154