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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/arch/alpha/include/asm/cacheflush.h
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@@ -4,19 +4,6 @@
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 #include <linux/mm.h>
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-/* Caches aren't brain-dead on the Alpha. */
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-#define flush_cache_all()			do { } while (0)
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-#define flush_cache_mm(mm)			do { } while (0)
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-#define flush_cache_dup_mm(mm)			do { } while (0)
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-#define flush_cache_range(vma, start, end)	do { } while (0)
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-#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
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-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
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-#define flush_dcache_page(page)			do { } while (0)
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-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
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-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
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-#define flush_cache_vmap(start, end)		do { } while (0)
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-#define flush_cache_vunmap(start, end)		do { } while (0)
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-
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 /* Note that the following two definitions are _highly_ dependent
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    on the contexts in which they are used in the kernel.  I personally
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    think it is criminal how loosely defined these macros are.  */
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@@ -48,7 +35,7 @@
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 extern void __load_new_mm_context(struct mm_struct *);
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 static inline void
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-flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
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+flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
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 			unsigned long addr, int len)
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 {
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 	if (vma->vm_flags & VM_EXEC) {
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@@ -59,20 +46,17 @@
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 			mm->context[smp_processor_id()] = 0;
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 	}
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 }
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-#else
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-extern void flush_icache_user_range(struct vm_area_struct *vma,
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+#define flush_icache_user_page flush_icache_user_page
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+#else /* CONFIG_SMP */
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+extern void flush_icache_user_page(struct vm_area_struct *vma,
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 		struct page *page, unsigned long addr, int len);
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-#endif
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+#define flush_icache_user_page flush_icache_user_page
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+#endif /* CONFIG_SMP */
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 /* This is used only in __do_fault and do_swap_page.  */
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 #define flush_icache_page(vma, page) \
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-  flush_icache_user_range((vma), (page), 0, 0)
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+	flush_icache_user_page((vma), (page), 0, 0)
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-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
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-do { memcpy(dst, src, len); \
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-     flush_icache_user_range(vma, page, vaddr, len); \
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-} while (0)
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-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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-	memcpy(dst, src, len)
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+#include <asm-generic/cacheflush.h>
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 #endif /* _ALPHA_CACHEFLUSH_H */