patch-2.4.22 linux-2.4.22/arch/ia64/sn/io/hubspc.c

• Lines: 252
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/arch/ia64/sn/io/hubspc.c
• Orig date: 2003-06-13 07:51:30.000000000 -0700

diff -urN linux-2.4.21/arch/ia64/sn/io/hubspc.c linux-2.4.22/arch/ia64/sn/io/hubspc.c
@@ -1,251 +0,0 @@
-/* $Id$
- *
- * 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.
- */
-
-/*
- * hubspc.c - Hub Memory Space Management Driver
- * This driver implements the managers for the following
- * memory resources:
- * 1) reference counters
- */
-
-#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 <linux/devfs_fs.h>
-#include <linux/devfs_fs_kernel.h>
-#include <asm/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/sn1/mem_refcnt.h>
-#include <asm/sn/addrs.h>
-#include <asm/sn/snconfig.h>
-#include <asm/sn/sn1/hubspc.h>
-#include <asm/sn/ksys/elsc.h>
-#include <asm/sn/simulator.h>
-
-
-/* Uncomment the following line for tracing */
-/* #define HUBSPC_DEBUG 1 */
-
-int hubspc_devflag = D_MP;
-
-
-/***********************************************************************/
-/* CPU Prom Space 						       */
-/***********************************************************************/
-
-typedef struct cpuprom_info {
-	devfs_handle_t	prom_dev;
-	devfs_handle_t	nodevrtx;
-	struct	cpuprom_info *next;
-}cpuprom_info_t;
-
-static cpuprom_info_t	*cpuprom_head;
-static spinlock_t	cpuprom_spinlock;
-#define	PROM_LOCK()	mutex_spinlock(&cpuprom_spinlock)
-#define	PROM_UNLOCK(s)	mutex_spinunlock(&cpuprom_spinlock, (s))
-
-/*
- * Add prominfo to the linked list maintained.
- */
-void
-prominfo_add(devfs_handle_t hub, devfs_handle_t prom)
-{
-	cpuprom_info_t	*info;
-	unsigned long	s;
-
-	info = kmalloc(sizeof(cpuprom_info_t), GFP_KERNEL);
-	ASSERT(info);
-	info->prom_dev = prom;
-	info->nodevrtx = hub;
-
-
-	s = PROM_LOCK();
-	info->next = cpuprom_head;
-	cpuprom_head = info;
-	PROM_UNLOCK(s);
-}
-
-void
-prominfo_del(devfs_handle_t prom)
-{
-	unsigned long	s;
-	cpuprom_info_t	*info;
-	cpuprom_info_t	**prev;
-
-	s = PROM_LOCK();
-	prev = &cpuprom_head;
-	while ( (info = *prev) ) {
-		if (info->prom_dev == prom) {
-			*prev = info->next;
-			PROM_UNLOCK(s);
-			return;
-		}
-		
-		prev = &info->next;
-	}
-	PROM_UNLOCK(s);
-	ASSERT(0);
-}
-
-devfs_handle_t
-prominfo_nodeget(devfs_handle_t prom)
-{
-	unsigned long	s;
-	cpuprom_info_t	*info;
-
-	s = PROM_LOCK();
-	info = cpuprom_head;
-	while (info) {
-		if(info->prom_dev == prom) {
-			PROM_UNLOCK(s);
-			return info->nodevrtx;
-		}
-		info = info->next;
-	}
-	PROM_UNLOCK(s);
-	return 0;
-}
-
-#if defined(CONFIG_IA64_SGI_SN1)
-#define	SN_PROMVERSION		INV_IP35PROM
-
-/* Add "detailed" labelled inventory information to the
- * prom vertex 
- */
-void
-cpuprom_detailed_inventory_info_add(devfs_handle_t prom_dev,devfs_handle_t node)
-{
-	invent_miscinfo_t 	*cpuprom_inventory_info;
-	extern invent_generic_t *klhwg_invent_alloc(cnodeid_t cnode, 
-						     int class, int size);
-	cnodeid_t		cnode = hubdev_cnodeid_get(node);
-
-	/* Allocate memory for the extra inventory information
-	 * for the  prom
-	 */
-	cpuprom_inventory_info = (invent_miscinfo_t *) 
-		klhwg_invent_alloc(cnode, INV_PROM, sizeof(invent_miscinfo_t));
-
-	ASSERT(cpuprom_inventory_info);
-
-	/* Set the enabled flag so that the hinv interprets this
-	 * information
-	 */
-	cpuprom_inventory_info->im_gen.ig_flag = INVENT_ENABLED;
-	cpuprom_inventory_info->im_type = SN_PROMVERSION;
-	/* Store prom revision into inventory information */
-	cpuprom_inventory_info->im_rev = IP27CONFIG.pvers_rev;
-	cpuprom_inventory_info->im_version = IP27CONFIG.pvers_vers;
-
-	/* Store this info as labelled information hanging off the
-	 * prom device vertex
-	 */
-	hwgraph_info_add_LBL(prom_dev, INFO_LBL_DETAIL_INVENT, 
-			     (arbitrary_info_t) cpuprom_inventory_info);
-	/* Export this information so that user programs can get to
-	 * this by using attr_get()
-	 */
-        hwgraph_info_export_LBL(prom_dev, INFO_LBL_DETAIL_INVENT,
-				sizeof(invent_miscinfo_t));
-}
-
-#endif  /* CONFIG_IA64_SGI_SN1 */
-
-
-/***********************************************************************/
-/* Base Hub Space Driver                                               */
-/***********************************************************************/
-
-/*
- * hubspc_init
- * Registration of the hubspc devices with the hub manager
- */
-void
-hubspc_init(void)
-{
-        /*
-         * Register with the hub manager
-         */
-
-        /* The reference counters */
-#if defined(CONFIG_IA64_SGI_SN1)
-        hubdev_register(mem_refcnt_attach);
-#endif
-
-#ifdef CONFIG_IA64_SGI_SN1
-	/* L1 system controller link */
-	if ( !IS_RUNNING_ON_SIMULATOR() ) {
-		/* initialize the L1 link */
-		extern void l1_init(void);
-		l1_init();
-	}
-#endif	/* CONFIG_IA64_SGI_SN1 */
-#ifdef	HUBSPC_DEBUG
-	printk("hubspc_init: Completed\n");
-#endif	/* HUBSPC_DEBUG */
-	/* Initialize spinlocks */
-	mutex_spinlock_init(&cpuprom_spinlock);
-}
-
-/* ARGSUSED */
-int
-hubspc_open(devfs_handle_t *devp, mode_t oflag, int otyp, cred_t *crp)
-{
-        return (0);
-}
-
-
-/* ARGSUSED */
-int
-hubspc_close(devfs_handle_t dev, int oflag, int otyp, cred_t *crp)
-{
-        return (0);
-}
-
-/* ARGSUSED */
-int
-hubspc_map(devfs_handle_t dev, vhandl_t *vt, off_t off, size_t len, uint prot)
-{
-	/*REFERENCED*/
-        int errcode = 0;
-
-	/* check validity of request */
-	if( len == 0 ) {
-		return -ENXIO;
-        }
-
-	return errcode;
-}
-
-/* ARGSUSED */
-int
-hubspc_unmap(devfs_handle_t dev, vhandl_t *vt)
-{
-	return (0);
-
-}
-
-/* ARGSUSED */
-int
-hubspc_ioctl(devfs_handle_t dev,
-             int cmd,
-             void *arg,
-             int mode,
-             cred_t *cred_p,
-             int *rvalp)
-{
-	return (0);
-
-}