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 flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  21
  22#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
  23        do {                                                    \
  24                flush_cache_page(vma, vaddr, page_to_pfn(page));\
  25                memcpy(dst, src, len);                          \
  26        } while (0)
  27#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
  28        do {                                                    \
  29                flush_cache_page(vma, vaddr, page_to_pfn(page));\
  30                memcpy(dst, src, len);                          \
  31        } while (0)
  32
  33#define __flush_page_to_ram(addr) \
  34        sparc32_cachetlb_ops->page_to_ram(addr)
  35#define flush_sig_insns(mm,insn_addr) \
  36        sparc32_cachetlb_ops->sig_insns(mm, insn_addr)
  37#define flush_page_for_dma(addr) \
  38        sparc32_cachetlb_ops->page_for_dma(addr)
  39
  40void sparc_flush_page_to_ram(struct page *page);
  41
  42#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
  43#define flush_dcache_page(page)                 sparc_flush_page_to_ram(page)
  44#define flush_dcache_mmap_lock(mapping)         do { } while (0)
  45#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  46
  47#define flush_cache_vmap(start, end)            flush_cache_all()
  48#define flush_cache_vunmap(start, end)          flush_cache_all()
  49
  50/* When a context switch happens we must flush all user windows so that
  51 * the windows of the current process are flushed onto its stack. This
  52 * way the windows are all clean for the next process and the stack
  53 * frames are up to date.
  54 */
  55void flush_user_windows(void);
  56void kill_user_windows(void);
  57void flushw_all(void);
  58
  59#endif /* _SPARC_CACHEFLUSH_H */
  60