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-rw-r--r--arch/sparc/include/asm/cacheflush_32.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/cacheflush_32.h b/arch/sparc/include/asm/cacheflush_32.h
new file mode 100644
index 000000000..adb6991d0
--- /dev/null
+++ b/arch/sparc/include/asm/cacheflush_32.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SPARC_CACHEFLUSH_H
+#define _SPARC_CACHEFLUSH_H
+
+#include <asm/cachetlb_32.h>
+
+#define flush_cache_all() \
+ sparc32_cachetlb_ops->cache_all()
+#define flush_cache_mm(mm) \
+ sparc32_cachetlb_ops->cache_mm(mm)
+#define flush_cache_dup_mm(mm) \
+ sparc32_cachetlb_ops->cache_mm(mm)
+#define flush_cache_range(vma,start,end) \
+ sparc32_cachetlb_ops->cache_range(vma, start, end)
+#define flush_cache_page(vma,addr,pfn) \
+ sparc32_cachetlb_ops->cache_page(vma, addr)
+#define flush_icache_range(start, end) do { } while (0)
+#define flush_icache_page(vma, pg) do { } while (0)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+ do { \
+ flush_cache_page(vma, vaddr, page_to_pfn(page));\
+ memcpy(dst, src, len); \
+ } while (0)
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+ do { \
+ flush_cache_page(vma, vaddr, page_to_pfn(page));\
+ memcpy(dst, src, len); \
+ } while (0)
+
+#define __flush_page_to_ram(addr) \
+ sparc32_cachetlb_ops->page_to_ram(addr)
+#define flush_sig_insns(mm,insn_addr) \
+ sparc32_cachetlb_ops->sig_insns(mm, insn_addr)
+#define flush_page_for_dma(addr) \
+ sparc32_cachetlb_ops->page_for_dma(addr)
+
+struct page;
+void sparc_flush_page_to_ram(struct page *page);
+
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
+#define flush_dcache_page(page) sparc_flush_page_to_ram(page)
+#define flush_dcache_mmap_lock(mapping) do { } while (0)
+#define flush_dcache_mmap_unlock(mapping) do { } while (0)
+
+#define flush_cache_vmap(start, end) flush_cache_all()
+#define flush_cache_vunmap(start, end) flush_cache_all()
+
+/* When a context switch happens we must flush all user windows so that
+ * the windows of the current process are flushed onto its stack. This
+ * way the windows are all clean for the next process and the stack
+ * frames are up to date.
+ */
+void flush_user_windows(void);
+void kill_user_windows(void);
+void flushw_all(void);
+
+#endif /* _SPARC_CACHEFLUSH_H */