1#ifndef _SPARC_CACHEFLUSH_H
 2#define _SPARC_CACHEFLUSH_H
 3
 4#include <linux/mm.h>		/* Common for other includes */
 5// #include <linux/kernel.h> from pgalloc.h
 6// #include <linux/sched.h>  from pgalloc.h
 7
 8// #include <asm/page.h>
 9#include <asm/btfixup.h>
10
11/*
12 * Fine grained cache flushing.
13 */
14#ifdef CONFIG_SMP
15
16BTFIXUPDEF_CALL(void, local_flush_cache_all, void)
17BTFIXUPDEF_CALL(void, local_flush_cache_mm, struct mm_struct *)
18BTFIXUPDEF_CALL(void, local_flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
19BTFIXUPDEF_CALL(void, local_flush_cache_page, struct vm_area_struct *, unsigned long)
20
21#define local_flush_cache_all() BTFIXUP_CALL(local_flush_cache_all)()
22#define local_flush_cache_mm(mm) BTFIXUP_CALL(local_flush_cache_mm)(mm)
23#define local_flush_cache_range(vma,start,end) BTFIXUP_CALL(local_flush_cache_range)(vma,start,end)
24#define local_flush_cache_page(vma,addr) BTFIXUP_CALL(local_flush_cache_page)(vma,addr)
25
26BTFIXUPDEF_CALL(void, local_flush_page_to_ram, unsigned long)
27BTFIXUPDEF_CALL(void, local_flush_sig_insns, struct mm_struct *, unsigned long)
28
29#define local_flush_page_to_ram(addr) BTFIXUP_CALL(local_flush_page_to_ram)(addr)
30#define local_flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(local_flush_sig_insns)(mm,insn_addr)
31
32extern void smp_flush_cache_all(void);
33extern void smp_flush_cache_mm(struct mm_struct *mm);
34extern void smp_flush_cache_range(struct vm_area_struct *vma,
35				  unsigned long start,
36				  unsigned long end);
37extern void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page);
38
39extern void smp_flush_page_to_ram(unsigned long page);
40extern void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr);
41
42#endif /* CONFIG_SMP */
43
44BTFIXUPDEF_CALL(void, flush_cache_all, void)
45BTFIXUPDEF_CALL(void, flush_cache_mm, struct mm_struct *)
46BTFIXUPDEF_CALL(void, flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
47BTFIXUPDEF_CALL(void, flush_cache_page, struct vm_area_struct *, unsigned long)
48
49#define flush_cache_all() BTFIXUP_CALL(flush_cache_all)()
50#define flush_cache_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
51#define flush_cache_dup_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
52#define flush_cache_range(vma,start,end) BTFIXUP_CALL(flush_cache_range)(vma,start,end)
53#define flush_cache_page(vma,addr,pfn) BTFIXUP_CALL(flush_cache_page)(vma,addr)
54#define flush_icache_range(start, end)		do { } while (0)
55#define flush_icache_page(vma, pg)		do { } while (0)
56
57#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
58
59#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
60	do {							\
61		flush_cache_page(vma, vaddr, page_to_pfn(page));\
62		memcpy(dst, src, len);				\
63	} while (0)
64#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
65	do {							\
66		flush_cache_page(vma, vaddr, page_to_pfn(page));\
67		memcpy(dst, src, len);				\
68	} while (0)
69
70BTFIXUPDEF_CALL(void, __flush_page_to_ram, unsigned long)
71BTFIXUPDEF_CALL(void, flush_sig_insns, struct mm_struct *, unsigned long)
 
 
 
 
72
73#define __flush_page_to_ram(addr) BTFIXUP_CALL(__flush_page_to_ram)(addr)
74#define flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(flush_sig_insns)(mm,insn_addr)
75
76extern void sparc_flush_page_to_ram(struct page *page);
77
78#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
79#define flush_dcache_page(page)			sparc_flush_page_to_ram(page)
 
 
 
 
80#define flush_dcache_mmap_lock(mapping)		do { } while (0)
81#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
82
83#define flush_cache_vmap(start, end)		flush_cache_all()
 
84#define flush_cache_vunmap(start, end)		flush_cache_all()
 
 
 
 
 
 
 
 
 
85
86#endif /* _SPARC_CACHEFLUSH_H */

 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
38void sparc_flush_page_to_ram(struct page *page);
39void 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)
43static 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_vmap_early(start, end)	do { } while (0)
52#define flush_cache_vunmap(start, end)		flush_cache_all()
53
54/* When a context switch happens we must flush all user windows so that
55 * the windows of the current process are flushed onto its stack. This
56 * way the windows are all clean for the next process and the stack
57 * frames are up to date.
58 */
59void flush_user_windows(void);
60void kill_user_windows(void);
61void flushw_all(void);
62
63#endif /* _SPARC_CACHEFLUSH_H */