diff options
Diffstat (limited to 'include/asm-m68k/sun3mmu.h')
| -rw-r--r-- | include/asm-m68k/sun3mmu.h | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/include/asm-m68k/sun3mmu.h b/include/asm-m68k/sun3mmu.h deleted file mode 100644 index d8f17a0d8c9f..000000000000 --- a/include/asm-m68k/sun3mmu.h +++ /dev/null @@ -1,171 +0,0 @@ -/* - * Definitions for Sun3 custom MMU. - */ -#ifndef __SUN3_MMU_H__ -#define __SUN3_MMU_H__ - -#include <linux/types.h> -#include <asm/movs.h> -#include <asm/sun3-head.h> - -/* MMU characteristics. */ -#define SUN3_SEGMAPS_PER_CONTEXT 2048 -#define SUN3_PMEGS_NUM 256 -#define SUN3_CONTEXTS_NUM 8 - -#define SUN3_PMEG_SIZE_BITS 17 -#define SUN3_PMEG_SIZE (1 << SUN3_PMEG_SIZE_BITS) -#define SUN3_PMEG_MASK (SUN3_PMEG_SIZE - 1) - -#define SUN3_PTE_SIZE_BITS 13 -#define SUN3_PTE_SIZE (1 << SUN3_PTE_SIZE_BITS) -#define SUN3_PTE_MASK (SUN3_PTE_SIZE - 1) - -#define SUN3_CONTROL_MASK (0x0FFFFFFC) -#define SUN3_INVALID_PMEG 255 -#define SUN3_INVALID_CONTEXT 255 - -#define AC_IDPROM 0x00000000 /* 34 ID PROM, R/O, byte, 32 bytes */ -#define AC_PAGEMAP 0x10000000 /* 3 Pagemap R/W, long */ -#define AC_SEGMAP 0x20000000 /* 3 Segment map, byte */ -#define AC_CONTEXT 0x30000000 /* 34c current mmu-context */ -#define AC_SENABLE 0x40000000 /* 34c system dvma/cache/reset enable reg*/ -#define AC_UDVMA_ENB 0x50000000 /* 34 Not used on Sun boards, byte */ -#define AC_BUS_ERROR 0x60000000 /* 34 Cleared on read, byte. */ -#define AC_SYNC_ERR 0x60000000 /* c fault type */ -#define AC_SYNC_VA 0x60000004 /* c fault virtual address */ -#define AC_ASYNC_ERR 0x60000008 /* c asynchronous fault type */ -#define AC_ASYNC_VA 0x6000000c /* c async fault virtual address */ -#define AC_LEDS 0x70000000 /* 34 Zero turns on LEDs, byte */ -#define AC_CACHETAGS 0x80000000 /* 34c direct access to the VAC tags */ -#define AC_CACHEDDATA 0x90000000 /* 3 c direct access to the VAC data */ -#define AC_UDVMA_MAP 0xD0000000 /* 4 Not used on Sun boards, byte */ -#define AC_VME_VECTOR 0xE0000000 /* 4 For non-Autovector VME, byte */ -#define AC_BOOT_SCC 0xF0000000 /* 34 bypass to access Zilog 8530. byte.*/ - -#define SUN3_PAGE_CHG_MASK (SUN3_PAGE_PGNUM_MASK \ - | SUN3_PAGE_ACCESSED | SUN3_PAGE_MODIFIED) - -/* Bus access type within PTE. */ -#define SUN3_PAGE_TYPE_MASK (0x0c000000) -#define SUN3_PAGE_TYPE_MEMORY (0x00000000) -#define SUN3_PAGE_TYPE_IO (0x04000000) -#define SUN3_PAGE_TYPE_VME16 (0x08000000) -#define SUN3_PAGE_TYPE_VME32 (0x0c000000) - -/* Mask for page number within PTE. */ -#define SUN3_PAGE_PGNUM_MASK (0x0007FFFF) - -/* Bits within bus-error register. */ -#define SUN3_BUSERR_WATCHDOG (0x01) -#define SUN3_BUSERR_unused (0x02) -#define SUN3_BUSERR_FPAENERR (0x04) -#define SUN3_BUSERR_FPABERR (0x08) -#define SUN3_BUSERR_VMEBERR (0x10) -#define SUN3_BUSERR_TIMEOUT (0x20) -#define SUN3_BUSERR_PROTERR (0x40) -#define SUN3_BUSERR_INVALID (0x80) - -#ifndef __ASSEMBLY__ - -/* Read bus error status register (implicitly clearing it). */ -static inline unsigned char sun3_get_buserr(void) -{ - unsigned char sfc, c; - - GET_SFC (sfc); - SET_SFC (FC_CONTROL); - GET_CONTROL_BYTE (AC_BUS_ERROR, c); - SET_SFC (sfc); - - return c; -} - -/* Read segmap from hardware MMU. */ -static inline unsigned long sun3_get_segmap(unsigned long addr) -{ - register unsigned long entry; - unsigned char c, sfc; - - GET_SFC (sfc); - SET_SFC (FC_CONTROL); - GET_CONTROL_BYTE (AC_SEGMAP | (addr & SUN3_CONTROL_MASK), c); - SET_SFC (sfc); - entry = c; - - return entry; -} - -/* Write segmap to hardware MMU. */ -static inline void sun3_put_segmap(unsigned long addr, unsigned long entry) -{ - unsigned char sfc; - - GET_DFC (sfc); - SET_DFC (FC_CONTROL); - SET_CONTROL_BYTE (AC_SEGMAP | (addr & SUN3_CONTROL_MASK), entry); - SET_DFC (sfc); - - return; -} - -/* Read PTE from hardware MMU. */ -static inline unsigned long sun3_get_pte(unsigned long addr) -{ - register unsigned long entry; - unsigned char sfc; - - GET_SFC (sfc); - SET_SFC (FC_CONTROL); - GET_CONTROL_WORD (AC_PAGEMAP | (addr & SUN3_CONTROL_MASK), entry); - SET_SFC (sfc); - - return entry; -} - -/* Write PTE to hardware MMU. */ -static inline void sun3_put_pte(unsigned long addr, unsigned long entry) -{ - unsigned char sfc; - - GET_DFC (sfc); - SET_DFC (FC_CONTROL); - SET_CONTROL_WORD (AC_PAGEMAP | (addr & SUN3_CONTROL_MASK), entry); - SET_DFC (sfc); - - return; -} - -/* get current context */ -static inline unsigned char sun3_get_context(void) -{ - unsigned char sfc, c; - - GET_SFC(sfc); - SET_SFC(FC_CONTROL); - GET_CONTROL_BYTE(AC_CONTEXT, c); - SET_SFC(sfc); - - return c; -} - -/* set alternate context */ -static inline void sun3_put_context(unsigned char c) -{ - unsigned char dfc; - GET_DFC(dfc); - SET_DFC(FC_CONTROL); - SET_CONTROL_BYTE(AC_CONTEXT, c); - SET_DFC(dfc); - - return; -} - -extern void __iomem *sun3_ioremap(unsigned long phys, unsigned long size, - unsigned long type); - -extern int sun3_map_test(unsigned long addr, char *val); - -#endif /* !__ASSEMBLY__ */ - -#endif /* !__SUN3_MMU_H__ */ |