1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _SPARC64_CACHEFLUSH_H
 3#define _SPARC64_CACHEFLUSH_H
 4
 5#include <asm/page.h>
 6
 7#ifndef __ASSEMBLY__
 8
 9#include <linux/mm.h>
10
11/* Cache flush operations. */
12#define flushw_all()	__asm__ __volatile__("flushw")
13
14void __flushw_user(void);
15#define flushw_user() __flushw_user()
16
17#define flush_user_windows flushw_user
18#define flush_register_windows flushw_all
19
20/* These are the same regardless of whether this is an SMP kernel or not. */
21#define flush_cache_mm(__mm) \
22	do { if ((__mm) == current->mm) flushw_user(); } while(0)
23#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
24#define flush_cache_range(vma, start, end) \
25	flush_cache_mm((vma)->vm_mm)
26#define flush_cache_page(vma, page, pfn) \
27	flush_cache_mm((vma)->vm_mm)
28
29/*
30 * On spitfire, the icache doesn't snoop local stores and we don't
31 * use block commit stores (which invalidate icache lines) during
32 * module load, so we need this.
33 */
34void flush_icache_range(unsigned long start, unsigned long end);
35void __flush_icache_page(unsigned long);
36
37void __flush_dcache_page(void *addr, int flush_icache);
38void flush_dcache_page_impl(struct page *page);
39#ifdef CONFIG_SMP
40void smp_flush_dcache_page_impl(struct page *page, int cpu);
41void flush_dcache_page_all(struct mm_struct *mm, struct page *page);
42#else
43#define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page)
44#define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page)
45#endif
46
47void __flush_dcache_range(unsigned long start, unsigned long end);
48#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
49void flush_dcache_page(struct page *page);
50
51#define flush_icache_page(vma, pg)	do { } while(0)
52#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
53
54void flush_ptrace_access(struct vm_area_struct *, struct page *,
55			 unsigned long uaddr, void *kaddr,
56			 unsigned long len, int write);
57
58#define copy_to_user_page(vma, page, vaddr, dst, src, len)		\
59	do {								\
60		flush_cache_page(vma, vaddr, page_to_pfn(page));	\
61		memcpy(dst, src, len);					\
62		flush_ptrace_access(vma, page, vaddr, src, len, 0);	\
63	} while (0)
64
65#define copy_from_user_page(vma, page, vaddr, dst, src, len) 		\
66	do {								\
67		flush_cache_page(vma, vaddr, page_to_pfn(page));	\
68		memcpy(dst, src, len);					\
69		flush_ptrace_access(vma, page, vaddr, dst, len, 1);	\
70	} while (0)
71
72#define flush_dcache_mmap_lock(mapping)		do { } while (0)
73#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
74
75#define flush_cache_vmap(start, end)		do { } while (0)
76#define flush_cache_vunmap(start, end)		do { } while (0)
77
78#endif /* !__ASSEMBLY__ */
79
80#endif /* _SPARC64_CACHEFLUSH_H */

 1#ifndef _SPARC64_CACHEFLUSH_H
 2#define _SPARC64_CACHEFLUSH_H
 3
 4#include <asm/page.h>
 5
 6#ifndef __ASSEMBLY__
 7
 8#include <linux/mm.h>
 9
10/* Cache flush operations. */
11
12/* These are the same regardless of whether this is an SMP kernel or not. */
13#define flush_cache_mm(__mm) \
14	do { if ((__mm) == current->mm) flushw_user(); } while(0)
15#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
16#define flush_cache_range(vma, start, end) \
17	flush_cache_mm((vma)->vm_mm)
18#define flush_cache_page(vma, page, pfn) \
19	flush_cache_mm((vma)->vm_mm)
20
21/*
22 * On spitfire, the icache doesn't snoop local stores and we don't
23 * use block commit stores (which invalidate icache lines) during
24 * module load, so we need this.
25 */
26extern void flush_icache_range(unsigned long start, unsigned long end);
27extern void __flush_icache_page(unsigned long);
28
29extern void __flush_dcache_page(void *addr, int flush_icache);
30extern void flush_dcache_page_impl(struct page *page);
31#ifdef CONFIG_SMP
32extern void smp_flush_dcache_page_impl(struct page *page, int cpu);
33extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page);
34#else
35#define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page)
36#define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page)
37#endif
38
39extern void __flush_dcache_range(unsigned long start, unsigned long end);
40#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
41extern void flush_dcache_page(struct page *page);
42
43#define flush_icache_page(vma, pg)	do { } while(0)
44#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
45
46extern void flush_ptrace_access(struct vm_area_struct *, struct page *,
47				unsigned long uaddr, void *kaddr,
48				unsigned long len, int write);
49
50#define copy_to_user_page(vma, page, vaddr, dst, src, len)		\
51	do {								\
52		flush_cache_page(vma, vaddr, page_to_pfn(page));	\
53		memcpy(dst, src, len);					\
54		flush_ptrace_access(vma, page, vaddr, src, len, 0);	\
55	} while (0)
56
57#define copy_from_user_page(vma, page, vaddr, dst, src, len) 		\
58	do {								\
59		flush_cache_page(vma, vaddr, page_to_pfn(page));	\
60		memcpy(dst, src, len);					\
61		flush_ptrace_access(vma, page, vaddr, dst, len, 1);	\
62	} while (0)
63
64#define flush_dcache_mmap_lock(mapping)		do { } while (0)
65#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
66
67#define flush_cache_vmap(start, end)		do { } while (0)
68#define flush_cache_vunmap(start, end)		do { } while (0)
69
70#ifdef CONFIG_DEBUG_PAGEALLOC
71/* internal debugging function */
72void kernel_map_pages(struct page *page, int numpages, int enable);
73#endif
74
75#endif /* !__ASSEMBLY__ */
76
77#endif /* _SPARC64_CACHEFLUSH_H */