patch-1.3.93 linux/arch/sparc/mm/s4clow.h

• Lines: 49
• Date: Thu Jan 1 02:00:00 1970
• Orig file: v1.3.92/linux/arch/sparc/mm/s4clow.h
• Orig date: Mon Mar 4 08:49:58 1996

diff -u --recursive --new-file v1.3.92/linux/arch/sparc/mm/s4clow.h linux/arch/sparc/mm/s4clow.h
@@ -1,48 +0,0 @@
-/* s4clow.h: Defines for in-window low level tlb refill code.
- *
- * Copyright (C) 1995 David S. Miller (davem@caipfs.rutgers.edu)
- */
-#ifndef _SPARC_S4CLOW_H
-#define _SPARC_S4CLOW_H
-
-#define         PAGE_SIZE       0x00001000
-#define		REAL_PGDIR_MASK	0xfffc0000
-#define		VMALLOC_START	0xfe100000
-
-#define		RING_RINGHD	0x00
-#define		RING_NENTRIES   0x10
-
-#define		MMU_ENTRY_NEXT	0x00
-#define		MMU_ENTRY_PREV	0x04
-#define		MMU_ENTRY_VADDR	0x08
-#define		MMU_ENTRY_PSEG	0x0c
-#define		MMU_ENTRY_LCK	0x0d
-
-#define		VACINFO_SIZE	0x00
-#define		VACINFO_HWFLSH	0x08
-#define		VACINFO_LSIZE	0x0c
-
-/* Each of the routines could get called by any of the
- * other low level sun4c tlb routines.  Well... at least
- * we code it that way.  Because we are in window we need
- * a way to make a routine completely self contained and
- * only need to worry about saving it's own set of registers
- * which it in fact uses.  With traps off this is difficult
- * ... however...
- *
- * The Sparc can address anywhere in the two ranges
- * 0 --> PAGE_SIZE and -PAGE_SIZE --> -1 without any
- * address calculation registers.  So we pull a trick,
- * we map a special page for these low level tlb routines
- * since they must be as quick as possible.  Since the low
- * page is the NULL unmapped page and in user space we use
- * the high one for simplicity.  Kids, do not try this at
- * home.
- */
-#define          REGSAVE_BASE   (-PAGE_SIZE)
-
-#define          FLUSHREGS      0
-#define          KFLTREGS       256
-#define          UFLTREGS       512
-
-#endif /* !(_SPARC_S4CLOW_H) */