patch-2.4.22 linux-2.4.22/arch/ia64/sn/io/platform_init/irix_io_init.c

• Lines: 90
• Date: 2003-08-25 04:44:39.000000000 -0700
• Orig file: linux-2.4.21/arch/ia64/sn/io/platform_init/irix_io_init.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/arch/ia64/sn/io/platform_init/irix_io_init.c linux-2.4.22/arch/ia64/sn/io/platform_init/irix_io_init.c
@@ -0,0 +1,89 @@
+/* $Id$
+ *
+ * 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.
+ *
+ * Copyright (C) 1992 - 1997, 2000-2003 Silicon Graphics, Inc. All rights reserved.
+ */
+
+#include <linux/types.h>
+#include <linux/config.h>
+#include <linux/slab.h>
+#include <asm/sn/sgi.h>
+#include <asm/sn/io.h>
+#include <asm/sn/sn_cpuid.h>
+#include <asm/sn/klconfig.h>
+#include <asm/sn/sn_private.h>
+#include <asm/sn/pci/pciba.h>
+#include <linux/smp.h>
+#include <asm/sn/simulator.h>
+
+extern void init_all_devices(void);
+extern void klhwg_add_all_modules(vertex_hdl_t);
+extern void klhwg_add_all_nodes(vertex_hdl_t);
+
+extern vertex_hdl_t hwgraph_root;
+extern void io_module_init(void);
+extern int pci_bus_to_hcl_cvlink(void);
+extern void mlreset(void);
+
+/* #define DEBUG_IO_INIT 1 */
+#ifdef DEBUG_IO_INIT
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif /* DEBUG_IO_INIT */
+
+/*
+ * This routine is responsible for the setup of all the IRIX hwgraph style
+ * stuff that's been pulled into linux.  It's called by sn_pci_find_bios which
+ * is called just before the generic Linux PCI layer does its probing (by 
+ * platform_pci_fixup aka sn_pci_fixup).
+ *
+ * It is very IMPORTANT that this call is only made by the Master CPU!
+ *
+ */
+
+void
+irix_io_init(void)
+{
+	cnodeid_t cnode;
+
+	/*
+	 * This is the Master CPU.  Emulate mlsetup and main.c in Irix.
+	 */
+	mlreset();
+
+        /*
+         * Initialize platform-dependent vertices in the hwgraph:
+         *      module
+         *      node
+         *      cpu
+         *      memory
+         *      slot
+         *      hub
+         *      router
+         *      xbow
+         */
+
+        io_module_init(); /* Use to be called module_init() .. */
+        klhwg_add_all_modules(hwgraph_root);
+        klhwg_add_all_nodes(hwgraph_root);
+
+	for (cnode = 0; cnode < numnodes; cnode++) {
+		extern void per_hub_init(cnodeid_t);
+		per_hub_init(cnode);
+	}
+
+	/* We can do headless hub cnodes here .. */
+
+	/*
+	 *
+	 * Our IO Infrastructure drivers are in place .. 
+	 * Initialize the whole IO Infrastructure .. xwidget/device probes.
+	 *
+	 */
+	init_all_devices();
+	pci_bus_to_hcl_cvlink();
+}