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- #ifndef _MCF_PGTABLE_H
- #define _MCF_PGTABLE_H
- #include <asm/mcfmmu.h>
- #include <asm/page.h>
- /*
- * MMUDR bits, in proper place. We write these directly into the MMUDR
- * after masking from the pte.
- */
- #define CF_PAGE_LOCKED MMUDR_LK /* 0x00000002 */
- #define CF_PAGE_EXEC MMUDR_X /* 0x00000004 */
- #define CF_PAGE_WRITABLE MMUDR_W /* 0x00000008 */
- #define CF_PAGE_READABLE MMUDR_R /* 0x00000010 */
- #define CF_PAGE_SYSTEM MMUDR_SP /* 0x00000020 */
- #define CF_PAGE_COPYBACK MMUDR_CM_CCB /* 0x00000040 */
- #define CF_PAGE_NOCACHE MMUDR_CM_NCP /* 0x00000080 */
- #define CF_CACHEMASK (~MMUDR_CM_CCB)
- #define CF_PAGE_MMUDR_MASK 0x000000fe
- #define _PAGE_NOCACHE030 CF_PAGE_NOCACHE
- /*
- * MMUTR bits, need shifting down.
- */
- #define CF_PAGE_MMUTR_MASK 0x00000c00
- #define CF_PAGE_MMUTR_SHIFT 10
- #define CF_PAGE_VALID (MMUTR_V << CF_PAGE_MMUTR_SHIFT)
- #define CF_PAGE_SHARED (MMUTR_SG << CF_PAGE_MMUTR_SHIFT)
- /*
- * Fake bits, not implemented in CF, will get masked out before
- * hitting hardware.
- */
- #define CF_PAGE_DIRTY 0x00000001
- #define CF_PAGE_FILE 0x00000200
- #define CF_PAGE_ACCESSED 0x00001000
- #define _PAGE_CACHE040 0x020 /* 68040 cache mode, cachable, copyback */
- #define _PAGE_NOCACHE_S 0x040 /* 68040 no-cache mode, serialized */
- #define _PAGE_NOCACHE 0x060 /* 68040 cache mode, non-serialized */
- #define _PAGE_CACHE040W 0x000 /* 68040 cache mode, cachable, write-through */
- #define _DESCTYPE_MASK 0x003
- #define _CACHEMASK040 (~0x060)
- #define _PAGE_GLOBAL040 0x400 /* 68040 global bit, used for kva descs */
- /*
- * Externally used page protection values.
- */
- #define _PAGE_PRESENT (CF_PAGE_VALID)
- #define _PAGE_ACCESSED (CF_PAGE_ACCESSED)
- #define _PAGE_DIRTY (CF_PAGE_DIRTY)
- #define _PAGE_READWRITE (CF_PAGE_READABLE \
- | CF_PAGE_WRITABLE \
- | CF_PAGE_SYSTEM \
- | CF_PAGE_SHARED)
- /*
- * Compound page protection values.
- */
- #define PAGE_NONE __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED)
- #define PAGE_SHARED __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_SHARED)
- #define PAGE_INIT __pgprot(CF_PAGE_VALID \
- | CF_PAGE_READABLE \
- | CF_PAGE_WRITABLE \
- | CF_PAGE_EXEC \
- | CF_PAGE_SYSTEM)
- #define PAGE_KERNEL __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_READABLE \
- | CF_PAGE_WRITABLE \
- | CF_PAGE_EXEC \
- | CF_PAGE_SYSTEM \
- | CF_PAGE_SHARED)
- #define PAGE_COPY __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_READABLE \
- | CF_PAGE_DIRTY)
- /*
- * Page protections for initialising protection_map. See mm/mmap.c
- * for use. In general, the bit positions are xwr, and P-items are
- * private, the S-items are shared.
- */
- #define __P000 PAGE_NONE
- #define __P001 __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_READABLE)
- #define __P010 __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_WRITABLE)
- #define __P011 __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_READABLE \
- | CF_PAGE_WRITABLE)
- #define __P100 __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_EXEC)
- #define __P101 __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_READABLE \
- | CF_PAGE_EXEC)
- #define __P110 __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_WRITABLE \
- | CF_PAGE_EXEC)
- #define __P111 __pgprot(CF_PAGE_VALID \
- | CF_PAGE_ACCESSED \
- | CF_PAGE_READABLE \
- | CF_PAGE_WRITABLE \
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