aboutsummaryrefslogtreecommitdiff
path: root/include/asm-cris/arch-v10/mmu.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-cris/arch-v10/mmu.h')
-rw-r--r--include/asm-cris/arch-v10/mmu.h109
1 files changed, 0 insertions, 109 deletions
diff --git a/include/asm-cris/arch-v10/mmu.h b/include/asm-cris/arch-v10/mmu.h
deleted file mode 100644
index df84f1716e6..00000000000
--- a/include/asm-cris/arch-v10/mmu.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * CRIS MMU constants and PTE layout
- */
-
-#ifndef _CRIS_ARCH_MMU_H
-#define _CRIS_ARCH_MMU_H
-
-/* type used in struct mm to couple an MMU context to an active mm */
-
-typedef struct
-{
- unsigned int page_id;
-} mm_context_t;
-
-/* kernel memory segments */
-
-#define KSEG_F 0xf0000000UL
-#define KSEG_E 0xe0000000UL
-#define KSEG_D 0xd0000000UL
-#define KSEG_C 0xc0000000UL
-#define KSEG_B 0xb0000000UL
-#define KSEG_A 0xa0000000UL
-#define KSEG_9 0x90000000UL
-#define KSEG_8 0x80000000UL
-#define KSEG_7 0x70000000UL
-#define KSEG_6 0x60000000UL
-#define KSEG_5 0x50000000UL
-#define KSEG_4 0x40000000UL
-#define KSEG_3 0x30000000UL
-#define KSEG_2 0x20000000UL
-#define KSEG_1 0x10000000UL
-#define KSEG_0 0x00000000UL
-
-/* CRIS PTE bits (see R_TLB_LO in the register description)
- *
- * Bit: 31-13 12-------4 3 2 1 0
- * ________________________________________________
- * | pfn | reserved | global | valid | kernel | we |
- * |_____|__________|________|_______|________|_____|
- *
- * (pfn = physical frame number)
- */
-
-/* Real HW-based PTE bits. We use some synonym names so that
- * things become less confusing in combination with the SW-based
- * bits further below.
- *
- */
-
-#define _PAGE_WE (1<<0) /* page is write-enabled */
-#define _PAGE_SILENT_WRITE (1<<0) /* synonym */
-#define _PAGE_KERNEL (1<<1) /* page is kernel only */
-#define _PAGE_VALID (1<<2) /* page is valid */
-#define _PAGE_SILENT_READ (1<<2) /* synonym */
-#define _PAGE_GLOBAL (1<<3) /* global page - context is ignored */
-
-/* Bits the HW doesn't care about but the kernel uses them in SW */
-
-#define _PAGE_PRESENT (1<<4) /* page present in memory */
-#define _PAGE_FILE (1<<5) /* set: pagecache, unset: swap (when !PRESENT) */
-#define _PAGE_ACCESSED (1<<5) /* simulated in software using valid bit */
-#define _PAGE_MODIFIED (1<<6) /* simulated in software using we bit */
-#define _PAGE_READ (1<<7) /* read-enabled */
-#define _PAGE_WRITE (1<<8) /* write-enabled */
-
-/* Define some higher level generic page attributes. */
-
-#define __READABLE (_PAGE_READ | _PAGE_SILENT_READ | _PAGE_ACCESSED)
-#define __WRITEABLE (_PAGE_WRITE | _PAGE_SILENT_WRITE | _PAGE_MODIFIED)
-
-#define _PAGE_TABLE (_PAGE_PRESENT | __READABLE | __WRITEABLE)
-#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED)
-
-#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED)
-#define PAGE_SHARED __pgprot(_PAGE_PRESENT | __READABLE | _PAGE_WRITE | \
- _PAGE_ACCESSED)
-#define PAGE_COPY __pgprot(_PAGE_PRESENT | __READABLE) // | _PAGE_COW
-#define PAGE_READONLY __pgprot(_PAGE_PRESENT | __READABLE)
-#define PAGE_KERNEL __pgprot(_PAGE_GLOBAL | _PAGE_KERNEL | \
- _PAGE_PRESENT | __READABLE | __WRITEABLE)
-#define _KERNPG_TABLE (_PAGE_TABLE | _PAGE_KERNEL)
-
-/*
- * CRIS can't do page protection for execute, and considers read the same.
- * Also, write permissions imply read permissions. This is the closest we can
- * get..
- */
-
-#define __P000 PAGE_NONE
-#define __P001 PAGE_READONLY
-#define __P010 PAGE_COPY
-#define __P011 PAGE_COPY
-#define __P100 PAGE_READONLY
-#define __P101 PAGE_READONLY
-#define __P110 PAGE_COPY
-#define __P111 PAGE_COPY
-
-#define __S000 PAGE_NONE
-#define __S001 PAGE_READONLY
-#define __S010 PAGE_SHARED
-#define __S011 PAGE_SHARED
-#define __S100 PAGE_READONLY
-#define __S101 PAGE_READONLY
-#define __S110 PAGE_SHARED
-#define __S111 PAGE_SHARED
-
-#define PTE_FILE_MAX_BITS 26
-
-#endif