patch-1.3.4 linux/include/asm-sparc/vaddrs.h

• Lines: 47
• Date: Sat Jun 17 11:21:41 1995
• Orig file: v1.3.3/linux/include/asm-sparc/vaddrs.h
• Orig date: Thu Feb 2 08:42:35 1995

diff -u --recursive --new-file v1.3.3/linux/include/asm-sparc/vaddrs.h linux/include/asm-sparc/vaddrs.h
@@ -1,6 +1,8 @@
 #ifndef _SPARC_VADDRS_H
 #define _SPARC_VADDRS_H
 
+#include <asm/head.h>
+
 /* asm-sparc/vaddrs.h:  Here will be define the virtual addresses at
  *                      which important I/O addresses will be mapped.
  *                      For instance the timer register virtual address
@@ -9,8 +11,34 @@
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
  */
 
-#define  TIMER_VADDR    0x3000   /* Next page after where the interrupt enable
-				  * register gets mapped at boot.
-				  */
+/* I can see only one reason why we should have statically defined
+ * mappings for devices and is the speedup improvements of not loading
+ * a pointer and then the value in the assembly code
+ */
+
+#define  AUXIO_VADDR  (KERNBASE+0x6000)    /* Auxiliary IO register */
+#define  TIMER_VADDR  (AUXIO_VADDR+0x1000) /* One page after AUXIO, length is
+					    * 5 pages which is needed on sun4m.
+					    */
+#define  INTREG_VADDR (TIMER_VADDR+0x5000)
+
+#define  IOBASE_VADDR   0xfe000000  /* Base for mapping pages */
+#define  IOBASE_LEN     0x00400000  /* Length of the IO area */
+#define  IOBASE_SUN4C_SEGMAP 100
+#define  DVMA_VADDR     0xfff00000  /* Base area of the DVMA on the 4c */
+#define  DVMA_LEN       0x000c0000  /* Size of the DVMA address space */
+
+/* On sun4m machines we need per-cpu virtual areas */
+#define  PERCPU_VADDR   0xff000000  /* Base for per-cpu virtual mappings */
+#define  PERCPU_ENTSIZE 0x00100000
+#define  PERCPU_LEN     ((PERCPU_ENTSIZE*NCPUS))
+
+/* per-cpu offsets */
+#define  PERCPU_TBR_OFFSET      0x00000      /* %tbr, mainly used for identification. */
+#define  PERCPU_KSTACK_OFFSET   0x01000      /* Beginning of kernel stack for this cpu */
+#define  PERCPU_MBOX_OFFSET     0x02000      /* Prom SMP Mailbox */
+#define  PERCPU_CPUID_OFFSET    0x03000      /* Per-cpu ID number. */
+#define  PERCPU_ISALIVE_OFFSET  0x03004      /* Has CPU been initted yet? */
+#define  PERCPU_ISIDLING_OFFSET 0x03008      /* Is CPU in idle loop spinning? */
 
 #endif /* !(_SPARC_VADDRS_H) */