Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-sparc/vaddrs.h b/include/asm-sparc/vaddrs.h
new file mode 100644
index 0000000..9109739
--- /dev/null
+++ b/include/asm-sparc/vaddrs.h
@@ -0,0 +1,70 @@
+/* $Id: vaddrs.h,v 1.27 2001/07/04 00:18:18 davem Exp $ */
+#ifndef _SPARC_VADDRS_H
+#define _SPARC_VADDRS_H
+
+#include <asm/head.h>
+
+/*
+ * asm-sparc/vaddrs.h: Here we define the virtual addresses at
+ * which important things will be mapped.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 2000 Anton Blanchard (anton@samba.org)
+ */
+
+#define SRMMU_MAXMEM 0x0c000000
+
+#define SRMMU_NOCACHE_VADDR (KERNBASE + SRMMU_MAXMEM)
+ /* = 0x0fc000000 */
+/* XXX Empiricals - this needs to go away - KMW */
+#define SRMMU_MIN_NOCACHE_PAGES (550)
+#define SRMMU_MAX_NOCACHE_PAGES (1280)
+
+/* The following constant is used in mm/srmmu.c::srmmu_nocache_calcsize()
+ * to determine the amount of memory that will be reserved as nocache:
+ *
+ * 256 pages will be taken as nocache per each
+ * SRMMU_NOCACHE_ALCRATIO MB of system memory.
+ *
+ * limits enforced: nocache minimum = 256 pages
+ * nocache maximum = 1280 pages
+ */
+#define SRMMU_NOCACHE_ALCRATIO 64 /* 256 pages per 64MB of system RAM */
+
+#define SUN4M_IOBASE_VADDR 0xfd000000 /* Base for mapping pages */
+#define IOBASE_VADDR 0xfe000000
+#define IOBASE_END 0xfe600000
+
+#define VMALLOC_START 0xfe600000
+
+/* XXX Alter this when I get around to fixing sun4c - Anton */
+#define VMALLOC_END 0xffc00000
+
+/*
+ * On the sun4/4c we need a place
+ * to reliably map locked down kernel data. This includes the
+ * task_struct and kernel stack pages of each process plus the
+ * scsi buffers during dvma IO transfers, also the floppy buffers
+ * during pseudo dma which runs with traps off (no faults allowed).
+ * Some quick calculations yield:
+ * NR_TASKS <512> * (3 * PAGE_SIZE) == 0x600000
+ * Subtract this from 0xc00000 and you get 0x927C0 of vm left
+ * over to map SCSI dvma + floppy pseudo-dma buffers. So be
+ * careful if you change NR_TASKS or else there won't be enough
+ * room for it all.
+ */
+#define SUN4C_LOCK_VADDR 0xff000000
+#define SUN4C_LOCK_END 0xffc00000
+
+#define KADB_DEBUGGER_BEGVM 0xffc00000 /* Where kern debugger is in virt-mem */
+#define KADB_DEBUGGER_ENDVM 0xffd00000
+#define DEBUG_FIRSTVADDR KADB_DEBUGGER_BEGVM
+#define DEBUG_LASTVADDR KADB_DEBUGGER_ENDVM
+
+#define LINUX_OPPROM_BEGVM 0xffd00000
+#define LINUX_OPPROM_ENDVM 0xfff00000
+
+#define DVMA_VADDR 0xfff00000 /* Base area of the DVMA on suns */
+#define DVMA_END 0xfffc0000
+
+#endif /* !(_SPARC_VADDRS_H) */
