Linux kernel mirror (for testing)
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linux
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 flush_icache_user_range(vma,pg,adr,len) do { } while (0)
21
22#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
23 do { \
24 flush_cache_page(vma, vaddr, page_to_pfn(page));\
25 memcpy(dst, src, len); \
26 } while (0)
27#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
28 do { \
29 flush_cache_page(vma, vaddr, page_to_pfn(page));\
30 memcpy(dst, src, len); \
31 } while (0)
32
33#define __flush_page_to_ram(addr) \
34 sparc32_cachetlb_ops->page_to_ram(addr)
35#define flush_sig_insns(mm,insn_addr) \
36 sparc32_cachetlb_ops->sig_insns(mm, insn_addr)
37#define flush_page_for_dma(addr) \
38 sparc32_cachetlb_ops->page_for_dma(addr)
39
40void sparc_flush_page_to_ram(struct page *page);
41
42#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
43#define flush_dcache_page(page) sparc_flush_page_to_ram(page)
44#define flush_dcache_mmap_lock(mapping) do { } while (0)
45#define flush_dcache_mmap_unlock(mapping) do { } while (0)
46
47#define flush_cache_vmap(start, end) flush_cache_all()
48#define flush_cache_vunmap(start, end) flush_cache_all()
49
50/* When a context switch happens we must flush all user windows so that
51 * the windows of the current process are flushed onto its stack. This
52 * way the windows are all clean for the next process and the stack
53 * frames are up to date.
54 */
55void flush_user_windows(void);
56void kill_user_windows(void);
57void flushw_all(void);
58
59#endif /* _SPARC_CACHEFLUSH_H */