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Linux/arch/sparc/include/asm/cacheflush_32.h

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  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 

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