arch/sparc/include/asm/cacheflush_32.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
  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)
  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_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  */
  59 void flush_user_windows(void);
  60 void kill_user_windows(void);
  61 void flushw_all(void);
  62
  63 #endif /* _SPARC_CACHEFLUSH_H */