patch-2.4.21 linux-2.4.21/arch/ia64/sn/io/sn2/ml_SN_init.c

• Lines: 161
• Date: 2003-06-13 07:51:30.000000000 -0700
• Orig file: linux-2.4.20/arch/ia64/sn/io/sn2/ml_SN_init.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.20/arch/ia64/sn/io/sn2/ml_SN_init.c linux-2.4.21/arch/ia64/sn/io/sn2/ml_SN_init.c
@@ -0,0 +1,160 @@
+/* $Id$
+ *
+ * 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, 2000-2002 Silicon Graphics, Inc. All rights reserved.
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/bootmem.h>
+#include <asm/sn/sgi.h>
+#include <asm/sn/io.h>
+#include <asm/sn/iograph.h>
+#include <asm/sn/invent.h>
+#include <asm/sn/hcl.h>
+#include <asm/sn/labelcl.h>
+#include <asm/sn/sn_private.h>
+#include <asm/sn/klconfig.h>
+#include <asm/sn/sn_cpuid.h>
+#include <asm/sn/snconfig.h>
+
+extern int numcpus;
+extern char arg_maxnodes[];
+extern cpuid_t master_procid;
+
+extern int hasmetarouter;
+
+int		maxcpus;
+cpumask_t	boot_cpumask;
+hubreg_t	region_mask = 0;
+
+
+extern xwidgetnum_t hub_widget_id(nasid_t);
+
+extern int valid_icache_reasons;	/* Reasons to flush the icache */
+extern int valid_dcache_reasons;	/* Reasons to flush the dcache */
+extern u_char miniroot;
+extern volatile int	need_utlbmiss_patch;
+extern void iograph_early_init(void);
+
+nasid_t master_nasid = INVALID_NASID;		/* This is the partition master nasid */
+nasid_t master_baseio_nasid = INVALID_NASID;	/* This is the master base I/O nasid */
+
+
+/*
+ * mlreset(void)
+ * 	very early machine reset - at this point NO interrupts have been
+ * 	enabled; nor is memory, tlb, p0, etc setup.
+ *
+ * 	slave is zero when mlreset is called for the master processor and
+ *	is nonzero thereafter.
+ */
+
+
+void
+mlreset(int slave)
+{
+	/*
+	 * We are the master cpu and node.
+	 */ 
+	master_nasid = get_nasid();
+	set_master_bridge_base();
+
+	/* We're the master processor */
+	master_procid = smp_processor_id();
+	master_nasid = cpuid_to_nasid(master_procid);
+
+	/*
+	 * master_nasid we get back better be same as one from
+	 * get_nasid()
+	 */
+	ASSERT_ALWAYS(master_nasid == get_nasid());
+
+	/* early initialization of iograph */
+	iograph_early_init();
+
+	/* Initialize Hub Pseudodriver Management */
+	hubdev_init();
+}
+
+
+/* XXX - Move the meat of this to intr.c ? */
+/*
+ * Set up the platform-dependent fields in the nodepda.
+ */
+void init_platform_nodepda(nodepda_t *npda, cnodeid_t node)
+{
+	hubinfo_t hubinfo;
+
+	extern void router_map_init(nodepda_t *);
+	extern void router_queue_init(nodepda_t *,cnodeid_t);
+	extern void intr_init_vecblk(nodepda_t *, cnodeid_t, int);
+
+	/* Allocate per-node platform-dependent data */
+	hubinfo = (hubinfo_t)alloc_bootmem_node(NODE_DATA(node), sizeof(struct hubinfo_s));
+
+	npda->pdinfo = (void *)hubinfo;
+	hubinfo->h_nodepda = npda;
+	hubinfo->h_cnodeid = node;
+	hubinfo->h_nasid = COMPACT_TO_NASID_NODEID(node);
+
+	spin_lock_init(&hubinfo->h_crblock);
+
+	hubinfo->h_widgetid = hub_widget_id(hubinfo->h_nasid);
+	npda->xbow_peer = INVALID_NASID;
+
+	/* 
+	 * Initialize the linked list of
+	 * router info pointers to the dependent routers
+	 */
+	npda->npda_rip_first = NULL;
+
+	/*
+	 * npda_rip_last always points to the place
+	 * where the next element is to be inserted
+	 * into the list 
+	 */
+	npda->npda_rip_last = &npda->npda_rip_first;
+	npda->geoid.any.type = GEO_TYPE_INVALID;
+
+	mutex_init_locked(&npda->xbow_sema); /* init it locked? */
+}
+
+/* XXX - Move the interrupt stuff to intr.c ? */
+/*
+ * Set up the platform-dependent fields in the processor pda.
+ * Must be done _after_ init_platform_nodepda().
+ * If we need a lock here, something else is wrong!
+ */
+void init_platform_pda(cpuid_t cpu)
+{
+}
+
+void
+update_node_information(cnodeid_t cnodeid)
+{
+	nodepda_t *npda = NODEPDA(cnodeid);
+	nodepda_router_info_t *npda_rip;
+	
+	/* Go through the list of router info 
+	 * structures and copy some frequently
+	 * accessed info from the info hanging
+	 * off the corresponding router vertices
+	 */
+	npda_rip = npda->npda_rip_first;
+	while(npda_rip) {
+		if (npda_rip->router_infop) {
+			npda_rip->router_portmask = 
+				npda_rip->router_infop->ri_portmask;
+			npda_rip->router_slot = 
+				npda_rip->router_infop->ri_slotnum;
+		} else {
+			/* No router, no ports. */
+			npda_rip->router_portmask = 0;
+		}
+		npda_rip = npda_rip->router_next;
+	}
+}