Lots of cleanup from Keith with additional tweaks by me. More to

come.  Stay frightened :-)

4 files changed, 128 insertions, 7 deletions

diff --git a/include/asm-mips64/bootinfo.h b/include/asm-mips64/bootinfo.h
index dadcc4872..2c1d40205 100644
--- a/include/asm-mips64/bootinfo.h
+++ b/include/asm-mips64/bootinfo.h
@@ -144,6 +144,11 @@
 
 #define CL_SIZE      (80)
 
+#define BOOT_MEM_MAP_MAX        32
+#define BOOT_MEM_RAM            1
+#define BOOT_MEM_ROM_DATA       2
+#define BOOT_MEM_RESERVED       3
+
 #ifndef _LANGUAGE_ASSEMBLY
 
 /*
@@ -160,6 +165,24 @@ extern unsigned long mips_machtype;
 extern unsigned long mips_machgroup;
 extern unsigned long mips_tlb_entries;
 
+/*
+ * A memory map that's built upon what was determined
+ * or specified on the command line.
+ */
+struct boot_mem_map {
+        int nr_map;
+        struct {
+                unsigned long addr;     /* start of memory segment */
+                unsigned long size;     /* size of memory segment */
+                long type;              /* type of memory segment */
+        } map[BOOT_MEM_MAP_MAX];
+};
+
+extern struct boot_mem_map boot_mem_map;
+
+extern void add_memory_region(unsigned long start, unsigned long size,
+                              long type);
+
 #endif /* _LANGUAGE_ASSEMBLY */
 
 #endif /* _ASM_BOOTINFO_H */
diff --git a/include/asm-mips64/pgtable.h b/include/asm-mips64/pgtable.h
index 14fc10bb3..431b4f9ff 100644
--- a/include/asm-mips64/pgtable.h
+++ b/include/asm-mips64/pgtable.h
@@ -177,15 +177,25 @@ extern void (*_flush_cache_l1)(void);
 
 #define _PAGE_CHG_MASK  (PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED | _CACHE_MASK)
 
-#define PAGE_NONE	__pgprot(_PAGE_PRESENT | _CACHE_CACHABLE_COW)
+#ifdef CONFIG_MIPS_UNCACHED
+#define PAGE_CACHABLE_DEFAULT _CACHE_UNCACHED
+#else /* ! UNCACHED */
+#ifdef CONFIG_SGI_IP22
+#define PAGE_CACHABLE_DEFAULT _CACHE_CACHABLE_NONCOHERENT
+#else /* ! IP22 */
+#define PAGE_CACHABLE_DEFAULT _CACHE_CACHABLE_COW
+#endif /* IP22 */
+#endif /* UNCACHED */
+
+#define PAGE_NONE	__pgprot(_PAGE_PRESENT | PAGE_CACHABLE_DEFAULT)
 #define PAGE_SHARED     __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
-			_CACHE_CACHABLE_COW)
+			PAGE_CACHABLE_DEFAULT)
 #define PAGE_COPY       __pgprot(_PAGE_PRESENT | _PAGE_READ | \
-			_CACHE_CACHABLE_COW)
+			PAGE_CACHABLE_DEFAULT)
 #define PAGE_READONLY   __pgprot(_PAGE_PRESENT | _PAGE_READ | \
-			_CACHE_CACHABLE_COW)
+			PAGE_CACHABLE_DEFAULT)
 #define PAGE_KERNEL	__pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \
-			_CACHE_CACHABLE_COW)
+			PAGE_CACHABLE_DEFAULT)
 #define PAGE_USERIO     __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
 			_CACHE_UNCACHED)
 #define PAGE_KERNEL_UNCACHED __pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \
diff --git a/include/asm-mips64/rrm.h b/include/asm-mips64/rrm.h
new file mode 100644
index 000000000..501fa6c1e
--- /dev/null
+++ b/include/asm-mips64/rrm.h
@@ -0,0 +1,88 @@
+/*
+ * SGI Rendering Resource Manager API (?).
+ *
+ * written by Miguel de Icaza (miguel@nuclecu.unam.mx)
+ *
+ * Ok, even if SGI choosed to do mmap trough ioctls, their
+ * kernel support for virtualizing the graphics card is nice.
+ *
+ * We should be able to make graphic applications on Linux
+ * fly.
+ *
+ * This header file should be included from GNU libc as well.
+ */
+
+
+/* Why like this you say?  Well, gdb can print enums */
+#define RRM_BASE 1000
+#define RRM_CMD_LIMIT (RRM_BASE + 100)
+
+enum {
+	RRM_OPENRN = RRM_BASE,	/* open rendering node */
+	RRM_CLOSERN,
+	RRM_BINDPROCTORN,	/* set current rendering region for node */
+	RRM_BINDRNTOCLIP,
+	RRM_UNBINDRNFROMCLIP,
+	RRM_SWAPBUF,
+	RRM_SETSWAPINTERVAL,
+	RRM_WAITFORRETRACE,
+	RRM_SETDISPLAYMODE,
+	RRM_MESSAGE,
+	RRM_INVALIDATERN,
+	RRM_VALIDATECLIP,
+	RRM_VALIDATESWAPBUF,
+	RRM_SWAPGROUP,
+	RRM_SWAPUNGROUP,
+	RRM_VALIDATEMESSAGE,
+	RRM_GETDISPLAYMODES,
+	RRM_LOADDISPLAYMODE,
+	RRM_CUSHIONBUFFER,
+	RRM_SWAPREADY,
+	RRM_MGR_SWAPBUF,
+	RRM_SETVSYNC,
+	RRM_GETVSYNC,
+	RRM_WAITVSYNC,
+	RRM_BINDRNTOREADANDCLIP,
+	RRM_MAPCLIPTOSWPBUFID
+};
+
+/* Parameters for the above ioctls
+ *
+ * All of the ioctls take as their first argument the rendering node id.
+ *
+ */
+
+/*
+ * RRM_OPENRN:
+ *
+ * This is called by the IRIX X server with:
+ * rnid = 0xffffffff rmask = 0
+ *
+ * Returns a number like this: 0x10001.
+ * If you run the X server over and over, you get a value
+ * that is of the form (n * 0x10000) + 1.
+ *
+ * The return value seems to be the RNID.
+ */
+struct RRM_OpenRN {
+	int      rnid;
+	unsigned int rmask;
+};
+
+struct RRM_CloseRN {
+	int rnid;
+};
+
+/*
+ * RRM_BINDPROCTORN:
+ *
+ * Return value when the X server calls it: 0
+ */ 
+struct RRM_BindProcToRN {
+	int      rnid;
+};
+
+#ifdef __KERNEL__
+int rrm_command (unsigned int cmd, void *arg);
+int rrm_close (struct inode *inode, struct file *file);
+#endif
diff --git a/include/asm-mips64/sgialib.h b/include/asm-mips64/sgialib.h
index ab02c8fd9..16444eff8 100644
--- a/include/asm-mips64/sgialib.h
+++ b/include/asm-mips64/sgialib.h
@@ -1,5 +1,4 @@
-/* $Id: sgialib.h,v 1.3 1999/12/04 03:59:12 ralf Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
@@ -7,6 +6,7 @@
  * SGI ARCS firmware interface library for the Linux kernel.
  *
  * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
+ * Copyright (C) 2001 Ralf Baechle (ralf@gnu.org)
  */
 #ifndef _ASM_SGIALIB_H
 #define _ASM_SGIALIB_H