LXR linux/arch/sparc/include/asm/cacheflush

   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
  38void 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 */
  53void flush_user_windows(void);
  54void kill_user_windows(void);
  55void flushw_all(void);
  56
  57#endif /* _SPARC_CACHEFLUSH_H */
  58