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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/arch/arc/include/asm/highmem.h
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@@ -9,29 +9,17 @@
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 #ifdef CONFIG_HIGHMEM
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 #include <uapi/asm/page.h>
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-#include <asm/kmap_size.h>
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-
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-#define FIXMAP_SIZE		PGDIR_SIZE
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-#define PKMAP_SIZE		PGDIR_SIZE
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+#include <asm/kmap_types.h>
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 /* start after vmalloc area */
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 #define FIXMAP_BASE		(PAGE_OFFSET - FIXMAP_SIZE - PKMAP_SIZE)
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-
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-#define FIX_KMAP_SLOTS		(KM_MAX_IDX * NR_CPUS)
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-#define FIX_KMAP_BEGIN		(0UL)
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-#define FIX_KMAP_END		((FIX_KMAP_BEGIN + FIX_KMAP_SLOTS) - 1)
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-
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-#define FIXADDR_TOP		(FIXMAP_BASE + (FIX_KMAP_END << PAGE_SHIFT))
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-
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-/*
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- * This should be converted to the asm-generic version, but of course this
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- * is needlessly different from all other architectures. Sigh - tglx
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- */
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-#define __fix_to_virt(x)	(FIXADDR_TOP - ((x) << PAGE_SHIFT))
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-#define __virt_to_fix(x)	(((FIXADDR_TOP - ((x) & PAGE_MASK))) >> PAGE_SHIFT)
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+#define FIXMAP_SIZE		PGDIR_SIZE	/* only 1 PGD worth */
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+#define KM_TYPE_NR		((FIXMAP_SIZE >> PAGE_SHIFT)/NR_CPUS)
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+#define FIXMAP_ADDR(nr)		(FIXMAP_BASE + ((nr) << PAGE_SHIFT))
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 /* start after fixmap area */
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 #define PKMAP_BASE		(FIXMAP_BASE + FIXMAP_SIZE)
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+#define PKMAP_SIZE		PGDIR_SIZE
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 #define LAST_PKMAP		(PKMAP_SIZE >> PAGE_SHIFT)
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 #define LAST_PKMAP_MASK		(LAST_PKMAP - 1)
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 #define PKMAP_ADDR(nr)		(PKMAP_BASE + ((nr) << PAGE_SHIFT))
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@@ -41,13 +29,11 @@
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 extern void kmap_init(void);
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-#define arch_kmap_local_post_unmap(vaddr)			\
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-	local_flush_tlb_kernel_range(vaddr, vaddr + PAGE_SIZE)
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-
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 static inline void flush_cache_kmaps(void)
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 {
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 	flush_cache_all();
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 }
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+
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 #endif
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 #endif