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Diffstat (limited to 'arch/ia64/sn/io/hubspc.c')
| -rw-r--r-- | arch/ia64/sn/io/hubspc.c | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/arch/ia64/sn/io/hubspc.c b/arch/ia64/sn/io/hubspc.c deleted file mode 100644 index 803226ec16f991..00000000000000 --- a/arch/ia64/sn/io/hubspc.c +++ /dev/null @@ -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); - -} |