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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/arch/m68k/include/asm/pgtable_mm.h
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@@ -2,7 +2,12 @@
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 #ifndef _M68K_PGTABLE_H
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 #define _M68K_PGTABLE_H
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-#include <asm-generic/4level-fixup.h>
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+
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+#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
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+#include <asm-generic/pgtable-nopmd.h>
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+#else
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+#include <asm-generic/pgtable-nopud.h>
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+#endif
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 #include <asm/setup.h>
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@@ -30,10 +35,8 @@
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 /* PMD_SHIFT determines the size of the area a second-level page table can map */
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-#ifdef CONFIG_SUN3
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-#define PMD_SHIFT       17
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-#else
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-#define PMD_SHIFT	22
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+#if CONFIG_PGTABLE_LEVELS == 3
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+#define PMD_SHIFT	18
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 #endif
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 #define PMD_SIZE	(1UL << PMD_SHIFT)
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 #define PMD_MASK	(~(PMD_SIZE-1))
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@@ -64,8 +67,8 @@
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 #define PTRS_PER_PMD	1
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 #define PTRS_PER_PGD	1024
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 #else
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-#define PTRS_PER_PTE	1024
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-#define PTRS_PER_PMD	8
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+#define PTRS_PER_PTE	64
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+#define PTRS_PER_PMD	128
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 #define PTRS_PER_PGD	128
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 #endif
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 #define USER_PTRS_PER_PGD	(TASK_SIZE/PGDIR_SIZE)
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@@ -73,8 +76,8 @@
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 /* Virtual address region for use by kernel_map() */
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 #ifdef CONFIG_SUN3
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-#define KMAP_START     0x0DC00000
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-#define KMAP_END       0x0E000000
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+#define KMAP_START	0x0dc00000
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+#define KMAP_END	0x0e000000
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 #elif defined(CONFIG_COLDFIRE)
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 #define KMAP_START	0xe0000000
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 #define KMAP_END	0xf0000000
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@@ -169,15 +172,10 @@
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 	    ? (__pgprot((pgprot_val(prot) & _CACHEMASK040) | _PAGE_NOCACHE_S))	\
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 	    : (prot)))
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+pgprot_t pgprot_dmacoherent(pgprot_t prot);
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+#define pgprot_dmacoherent(prot)	pgprot_dmacoherent(prot)
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+
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 #endif /* CONFIG_COLDFIRE */
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-#include <asm-generic/pgtable.h>
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 #endif /* !__ASSEMBLY__ */
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-
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-/*
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- * No page table caches to initialise
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- */
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-#define pgtable_cache_init()	do { } while (0)
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-
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-#define check_pgt_cache()	do { } while (0)
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 #endif /* _M68K_PGTABLE_H */