patch-2.4.22 linux-2.4.22/arch/ia64/sn/io/sn1/mem_refcnt.c
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- Lines: 221
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.21/arch/ia64/sn/io/sn1/mem_refcnt.c
- Orig date:
2003-06-13 07:51:30.000000000 -0700
diff -urN linux-2.4.21/arch/ia64/sn/io/sn1/mem_refcnt.c linux-2.4.22/arch/ia64/sn/io/sn1/mem_refcnt.c
@@ -1,220 +0,0 @@
-/* $Id: mem_refcnt.c,v 1.1 2002/02/28 17:31:25 marcelo Exp $
- *
- * 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 <asm/sn/arch.h>
-#include <asm/sn/sgi.h>
-#include <asm/sn/io.h>
-#include <asm/sn/sn_cpuid.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/iograph.h>
-#include <asm/sn/sn1/mem_refcnt.h>
-#include <asm/sn/sn1/hwcntrs.h>
-#include <asm/sn/sn1/hubspc.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)
-{
-#if 0
- devfs_handle_t refcnt_dev;
-
- hwgraph_char_device_add(hub,
- "refcnt",
- "hubspc_",
- &refcnt_dev);
- device_info_set(refcnt_dev, (void*)(ulong)HUBSPC_REFCOUNTERS);
-#endif
-
- return (0);
-}
-
-
-/*ARGSUSED*/
-int
-mem_refcnt_open(devfs_handle_t *devp, mode_t oflag, int otyp, cred_t *crp)
-{
- cnodeid_t node;
-
- 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;
-
- 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;
-
- 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 = MAX_MEM_SLOTS;
-
- 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 = MAX_MEM_SLOTS;
- 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;
-}
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