patch-2.4.19 linux-2.4.19/arch/ia64/sn/io/mem_refcnt.c

• Lines: 223
• Date: Wed Dec 31 16:00:00 1969
• Orig file: linux-2.4.18/arch/ia64/sn/io/mem_refcnt.c
• Orig date: Thu Apr 12 12:16:35 2001

diff -urN linux-2.4.18/arch/ia64/sn/io/mem_refcnt.c linux-2.4.19/arch/ia64/sn/io/mem_refcnt.c
@@ -1,222 +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 Silicon Graphics, Inc.
- * Copyright (C) 2000 by Colin Ngam
- */
-
-#include <linux/types.h>
-#include <asm/sn/sgi.h>
-#include <asm/sn/invent.h>
-#include <asm/sn/hcl.h>
-#include <asm/sn/hcl_util.h>
-#include <asm/sn/nodepda.h>
-#include <asm/sn/hubspc.h>
-#include <asm/sn/iograph.h>
-#include <asm/sn/mem_refcnt.h>
-#include <asm/sn/hwcntrs.h>
-// From numa_hw.h
-
-#define MIGR_COUNTER_MAX_GET(nodeid) \
-        (NODEPDA_MCD((nodeid))->migr_system_kparms.migr_threshold_reference)
-/*
- * Get the Absolute Theshold
- */
-#define MIGR_THRESHOLD_ABS_GET(nodeid) ( \
-        MD_MIG_VALUE_THRESH_GET(COMPACT_TO_NASID_NODEID(nodeid)))
-/*
- * Get the current Differential Threshold
- */
-#define MIGR_THRESHOLD_DIFF_GET(nodeid) \
-        (NODEPDA_MCD(nodeid)->migr_as_kparms.migr_base_threshold)
-
-#define NUM_OF_HW_PAGES_PER_SW_PAGE()   (NBPP / MD_PAGE_SIZE)
-
-// #include "migr_control.h"
-
-int
-mem_refcnt_attach(devfs_handle_t hub)
-{
-        devfs_handle_t refcnt_dev;
-        
-        hwgraph_char_device_add(hub,
-                                "refcnt",
-                                "hubspc_", 
-				&refcnt_dev);
-        device_info_set(refcnt_dev, (void*)(ulong)HUBSPC_REFCOUNTERS);
-
-        return (0);
-}
-
-
-/*ARGSUSED*/
-int
-mem_refcnt_open(devfs_handle_t *devp, mode_t oflag, int otyp, cred_t *crp)
-{
-        cnodeid_t node;
-
-        ASSERT( (hubspc_subdevice_t)(ulong)device_info_get(*devp) == HUBSPC_REFCOUNTERS );
-
-        node = master_node_get(*devp);
-
-        ASSERT( (node >= 0) && (node < numnodes) );
-
-        if (NODEPDA(node)->migr_refcnt_counterbuffer == NULL) {
-                return (ENODEV);
-        }
-
-        ASSERT( NODEPDA(node)->migr_refcnt_counterbase != NULL );
-        ASSERT( NODEPDA(node)->migr_refcnt_cbsize != (size_t)0 );
-
-        return (0);
-}
-
-/*ARGSUSED*/
-int
-mem_refcnt_close(devfs_handle_t dev, int oflag, int otyp, cred_t *crp)
-{
-        return 0;
-}
-
-/*ARGSUSED*/
-int
-mem_refcnt_mmap(devfs_handle_t dev, vhandl_t *vt, off_t off, size_t len, uint prot)
-{
-        cnodeid_t node;
-        int errcode;
-        char* buffer;
-        size_t blen;
-        
-        ASSERT( (hubspc_subdevice_t)(ulong)device_info_get(dev) == HUBSPC_REFCOUNTERS );
-
-        node = master_node_get(dev);
-
-        ASSERT( (node >= 0) && (node < numnodes) );
-
-        ASSERT( NODEPDA(node)->migr_refcnt_counterbuffer != NULL);
-        ASSERT( NODEPDA(node)->migr_refcnt_counterbase != NULL );
-        ASSERT( NODEPDA(node)->migr_refcnt_cbsize != 0 );
-
-        /*
-         * XXXX deal with prot's somewhere around here....
-         */
-
-        buffer = NODEPDA(node)->migr_refcnt_counterbuffer;
-        blen = NODEPDA(node)->migr_refcnt_cbsize;
-
-        /*
-         * Force offset to be a multiple of sizeof(refcnt_t)
-         * We round up.
-         */
-
-        off = (((off - 1)/sizeof(refcnt_t)) + 1) * sizeof(refcnt_t);
-
-        if ( ((buffer + blen) - (buffer + off + len)) < 0 ) {
-                return (EPERM);
-        }
-
-        errcode = v_mapphys(vt,
-                            buffer + off,
-                            len);
-
-        return errcode;
-}
-
-/*ARGSUSED*/
-int
-mem_refcnt_unmap(devfs_handle_t dev, vhandl_t *vt)
-{
-        return 0;
-}
-
-/* ARGSUSED */
-int
-mem_refcnt_ioctl(devfs_handle_t dev,
-                 int cmd,
-                 void *arg,
-                 int mode,
-                 cred_t *cred_p,
-                 int *rvalp)
-{
-        cnodeid_t node;
-        int errcode;
-	extern int numnodes;
-        
-        ASSERT( (hubspc_subdevice_t)(ulong)device_info_get(dev) == HUBSPC_REFCOUNTERS );
-
-        node = master_node_get(dev);
-
-        ASSERT( (node >= 0) && (node < numnodes) );
-
-        ASSERT( NODEPDA(node)->migr_refcnt_counterbuffer != NULL);
-        ASSERT( NODEPDA(node)->migr_refcnt_counterbase != NULL );
-        ASSERT( NODEPDA(node)->migr_refcnt_cbsize != 0 );
-
-        errcode = 0;
-        
-        switch (cmd) {
-        case RCB_INFO_GET:
-        {
-                rcb_info_t rcb;
-                
-                rcb.rcb_len = NODEPDA(node)->migr_refcnt_cbsize;
-                
-                rcb.rcb_sw_sets = NODEPDA(node)->migr_refcnt_numsets;
-                rcb.rcb_sw_counters_per_set = numnodes;
-                rcb.rcb_sw_counter_size = sizeof(refcnt_t);
-
-                rcb.rcb_base_pages = NODEPDA(node)->migr_refcnt_numsets /
-                                     NUM_OF_HW_PAGES_PER_SW_PAGE();  
-                rcb.rcb_base_page_size = NBPP;
-                rcb.rcb_base_paddr = ctob(slot_getbasepfn(node, 0));
-                
-                rcb.rcb_cnodeid = node;
-                rcb.rcb_granularity = MD_PAGE_SIZE;
-#ifdef LATER
-                rcb.rcb_hw_counter_max = MIGR_COUNTER_MAX_GET(node);
-                rcb.rcb_diff_threshold = MIGR_THRESHOLD_DIFF_GET(node);
-#endif
-                rcb.rcb_abs_threshold = MIGR_THRESHOLD_ABS_GET(node);
-                rcb.rcb_num_slots = node_getnumslots(node);
-
-                if (COPYOUT(&rcb, arg, sizeof(rcb_info_t))) {
-                        errcode = EFAULT;
-                }
-
-                break;
-        }
-        case RCB_SLOT_GET:
-        {
-                rcb_slot_t slot[MAX_MEM_SLOTS];
-                int s;
-                int nslots;
-
-                nslots = node_getnumslots(node);
-                ASSERT(nslots <= MAX_MEM_SLOTS);
-                for (s = 0; s < nslots; s++) {
-                        slot[s].base = (uint64_t)ctob(slot_getbasepfn(node, s));
-#ifdef LATER
-                        slot[s].size  = (uint64_t)ctob(slot_getsize(node, s));
-#else
-                        slot[s].size  = (uint64_t)1;
-#endif
-                }
-                if (COPYOUT(&slot[0], arg, nslots * sizeof(rcb_slot_t))) {
-                        errcode = EFAULT;
-                }
-                
-                *rvalp = nslots;
-                break;
-        }
-                
-        default:
-                errcode = EINVAL;
-                break;
-
-        }
-        
-        return errcode;
-}