1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _SPARC_CACHEFLUSH_H
3 #define _SPARC_CACHEFLUSH_H
4
5 #include <linux/page-flags.h>
6 #include <asm/cachetlb_32.h>
7
8 #define flush_cache_all() \
9 sparc32_cachetlb_ops->cache_all()
10 #define flush_cache_mm(mm) \
11 sparc32_cachetlb_ops->cache_mm(mm)
12 #define flush_cache_dup_mm(mm) \
13 sparc32_cachetlb_ops->cache_mm(mm)
14 #define flush_cache_range(vma,start,end) \
15 sparc32_cachetlb_ops->cache_range(vma, start, end)
16 #define flush_cache_page(vma,addr,pfn) \
17 sparc32_cachetlb_ops->cache_page(vma, addr)
18 #define flush_icache_range(start, end) 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 void sparc_flush_folio_to_ram(struct folio *folio);
40
41 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
42 #define flush_dcache_folio(folio) sparc_flush_folio_to_ram(folio)
flush_dcache_page(struct page * page)43 static inline void flush_dcache_page(struct page *page)
44 {
45 flush_dcache_folio(page_folio(page));
46 }
47 #define flush_dcache_mmap_lock(mapping) do { } while (0)
48 #define flush_dcache_mmap_unlock(mapping) do { } while (0)
49
50 #define flush_cache_vmap(start, end) flush_cache_all()
51 #define flush_cache_vunmap(start, end) flush_cache_all()
52
53 /* When a context switch happens we must flush all user windows so that
54 * the windows of the current process are flushed onto its stack. This
55 * way the windows are all clean for the next process and the stack
56 * frames are up to date.
57 */
58 void flush_user_windows(void);
59 void kill_user_windows(void);
60 void flushw_all(void);
61
62 #endif /* _SPARC_CACHEFLUSH_H */
63
