diff options
Diffstat (limited to 'arch/ia64/sn/io/sn1/mem_refcnt.c')
| -rw-r--r-- | arch/ia64/sn/io/sn1/mem_refcnt.c | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/arch/ia64/sn/io/sn1/mem_refcnt.c b/arch/ia64/sn/io/sn1/mem_refcnt.c deleted file mode 100644 index c39f6d2249720d..00000000000000 --- a/arch/ia64/sn/io/sn1/mem_refcnt.c +++ /dev/null @@ -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; -} |