1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _SPARC_CACHEFLUSH_H
3 #define _SPARC_CACHEFLUSH_H
4 
5 #include <asm/cachetlb_32.h>
6 
7 #define flush_cache_all() \
8 	sparc32_cachetlb_ops->cache_all()
9 #define flush_cache_mm(mm) \
10 	sparc32_cachetlb_ops->cache_mm(mm)
11 #define flush_cache_dup_mm(mm) \
12 	sparc32_cachetlb_ops->cache_mm(mm)
13 #define flush_cache_range(vma,start,end) \
14 	sparc32_cachetlb_ops->cache_range(vma, start, end)
15 #define flush_cache_page(vma,addr,pfn) \
16 	sparc32_cachetlb_ops->cache_page(vma, addr)
17 #define flush_icache_range(start, end)		do { } while (0)
18 #define flush_icache_page(vma, pg)		do { } while (0)
19 
20 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
21 	do {							\
22 		flush_cache_page(vma, vaddr, page_to_pfn(page));\
23 		memcpy(dst, src, len);				\
24 	} while (0)
25 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
26 	do {							\
27 		flush_cache_page(vma, vaddr, page_to_pfn(page));\
28 		memcpy(dst, src, len);				\
29 	} while (0)
30 
31 #define __flush_page_to_ram(addr) \
32 	sparc32_cachetlb_ops->page_to_ram(addr)
33 #define flush_sig_insns(mm,insn_addr) \
34 	sparc32_cachetlb_ops->sig_insns(mm, insn_addr)
35 #define flush_page_for_dma(addr) \
36 	sparc32_cachetlb_ops->page_for_dma(addr)
37 
38 void sparc_flush_page_to_ram(struct page *page);
39 
40 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
41 #define flush_dcache_page(page)			sparc_flush_page_to_ram(page)
42 #define flush_dcache_mmap_lock(mapping)		do { } while (0)
43 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
44 
45 #define flush_cache_vmap(start, end)		flush_cache_all()
46 #define flush_cache_vunmap(start, end)		flush_cache_all()
47 
48 /* When a context switch happens we must flush all user windows so that
49  * the windows of the current process are flushed onto its stack. This
50  * way the windows are all clean for the next process and the stack
51  * frames are up to date.
52  */
53 void flush_user_windows(void);
54 void kill_user_windows(void);
55 void flushw_all(void);
56 
57 #endif /* _SPARC_CACHEFLUSH_H */
58