/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include #include #include #include int (*p2get_mem_unum)(int, uint64_t, char *, int, int *); void startup_platform(void) { } int set_platform_tsb_spares() { return (0); } void set_platform_defaults(void) { } /* * Definitions for accessing the pci config space of the isa node * of Southbridge. */ #define SCHUMACHER_ISA_PATHNAME "/pci@1e,600000/isa@7" static ddi_acc_handle_t isa_handle; /* handle for isa pci space */ void load_platform_drivers(void) { dev_info_t *dip; /* dip of the isa driver */ /* * Install 'us' driver. */ (void) i_ddi_attach_hw_nodes("us"); /* * mc-us3i must stay loaded for plat_get_mem_unum() */ if (i_ddi_attach_hw_nodes("mc-us3i") != DDI_SUCCESS) cmn_err(CE_WARN, "mc-us3i driver failed to install"); (void) ddi_hold_driver(ddi_name_to_major("mc-us3i")); /* * Install Isa driver. This is required for the southbridge IDE * workaround - to reset the IDE channel during IDE bus reset. * Panic the system in case ISA driver could not be loaded or * any problem in accessing its pci config space. Since the register * to reset the channel for IDE is in ISA config space!. */ dip = e_ddi_hold_devi_by_path(SCHUMACHER_ISA_PATHNAME, 0); if (dip == NULL) { cmn_err(CE_PANIC, "Could not install the isa driver\n"); return; } if (pci_config_setup(dip, &isa_handle) != DDI_SUCCESS) { cmn_err(CE_PANIC, "Could not get the config space of isa\n"); return; } } /* * This routine provides a workaround for a bug in the SB chip which * can cause data corruption. Will be invoked from the IDE HBA driver for * Acer SouthBridge at the time of IDE bus reset. */ /*ARGSUSED*/ int plat_ide_chipreset(dev_info_t *dip, int chno) { uint8_t val; int ret = DDI_SUCCESS; if (isa_handle == NULL) { return (DDI_FAILURE); } val = pci_config_get8(isa_handle, 0x58); /* * The dip passed as the argument is not used here. * This will be needed for platforms which have multiple on-board SB, * The dip passed will be used to match the corresponding ISA node. */ switch (chno) { case 0: /* * First disable the primary channel then re-enable it. * As per ALI no wait should be required in between have * given 1ms delay in between to be on safer side. * bit 2 of register 0x58 when 0 disable the channel 0. * bit 2 of register 0x58 when 1 enables the channel 0. */ pci_config_put8(isa_handle, 0x58, val & 0xFB); drv_usecwait(1000); pci_config_put8(isa_handle, 0x58, val); break; case 1: /* * bit 3 of register 0x58 when 0 disable the channel 1. * bit 3 of register 0x58 when 1 enables the channel 1. */ pci_config_put8(isa_handle, 0x58, val & 0xF7); drv_usecwait(1000); pci_config_put8(isa_handle, 0x58, val); break; default: /* * Unknown channel number passed. Return failure. */ ret = DDI_FAILURE; } return (ret); } /*ARGSUSED*/ int plat_cpu_poweron(struct cpu *cp) { return (ENOTSUP); /* not supported on this platform */ } /*ARGSUSED*/ int plat_cpu_poweroff(struct cpu *cp) { return (ENOTSUP); /* not supported on this platform */ } /*ARGSUSED*/ void plat_freelist_process(int mnode) { } char *platform_module_list[] = { (char *)0 }; /*ARGSUSED*/ void plat_tod_fault(enum tod_fault_type tod_bad) { } /*ARGSUSED*/ int plat_get_mem_unum(int synd_code, uint64_t flt_addr, int flt_bus_id, int flt_in_memory, ushort_t flt_status, char *buf, int buflen, int *lenp) { if (flt_in_memory && (p2get_mem_unum != NULL)) return (p2get_mem_unum(synd_code, P2ALIGN(flt_addr, 8), buf, buflen, lenp)); else return (ENOTSUP); } /*ARGSUSED*/ int plat_get_cpu_unum(int cpuid, char *buf, int buflen, int *lenp) { if (snprintf(buf, buflen, "MB") >= buflen) { return (ENOSPC); } else { *lenp = strlen(buf); return (0); } } /* * Fiesta support for lgroups. * * On fiesta platform, an lgroup platform handle == CPU id */ /* * Macro for extracting the CPU number from the CPU id */ #define CPUID_TO_LGRP(id) ((id) & 0x7) #define SCHUMACHER_MC_SHIFT 36 /* * Return the platform handle for the lgroup containing the given CPU */ lgrp_handle_t plat_lgrp_cpu_to_hand(processorid_t id) { return (CPUID_TO_LGRP(id)); } /* * Platform specific lgroup initialization */ void plat_lgrp_init(void) { pnode_t curnode; char tmp_name[MAXSYSNAME]; int portid; int cpucnt = 0; int max_portid = -1; extern uint32_t lgrp_expand_proc_thresh; extern uint32_t lgrp_expand_proc_diff; extern pgcnt_t lgrp_mem_free_thresh; extern uint32_t lgrp_loadavg_tolerance; extern uint32_t lgrp_loadavg_max_effect; extern uint32_t lgrp_load_thresh; extern lgrp_mem_policy_t lgrp_mem_policy_root; /* * Count the number of CPUs installed to determine if * NUMA optimization should be enabled or not. * * All CPU nodes reside in the root node and have a * device type "cpu". */ curnode = prom_rootnode(); for (curnode = prom_childnode(curnode); curnode; curnode = prom_nextnode(curnode)) { bzero(tmp_name, MAXSYSNAME); if (prom_getprop(curnode, OBP_NAME, (caddr_t)tmp_name) == -1 || prom_getprop(curnode, OBP_DEVICETYPE, tmp_name) == -1 || strcmp(tmp_name, "cpu") != 0) continue; cpucnt++; if (prom_getprop(curnode, "portid", (caddr_t)&portid) != -1 && portid > max_portid) max_portid = portid; } if (cpucnt <= 1) max_mem_nodes = 1; else if (max_portid >= 0 && max_portid < MAX_MEM_NODES) max_mem_nodes = max_portid + 1; /* * Set tuneables for fiesta architecture * * lgrp_expand_proc_thresh is the minimum load on the lgroups * this process is currently running on before considering * expanding threads to another lgroup. * * lgrp_expand_proc_diff determines how much less the remote lgroup * must be loaded before expanding to it. * * Optimize for memory bandwidth by spreading multi-threaded * program to different lgroups. */ lgrp_expand_proc_thresh = lgrp_loadavg_max_effect - 1; lgrp_expand_proc_diff = lgrp_loadavg_max_effect / 2; lgrp_loadavg_tolerance = lgrp_loadavg_max_effect / 2; lgrp_mem_free_thresh = 1; /* home lgrp must have some memory */ lgrp_expand_proc_thresh = lgrp_loadavg_max_effect - 1; lgrp_mem_policy_root = LGRP_MEM_POLICY_NEXT; lgrp_load_thresh = 0; mem_node_pfn_shift = SCHUMACHER_MC_SHIFT - MMU_PAGESHIFT; } /* * Return latency between "from" and "to" lgroups * * This latency number can only be used for relative comparison * between lgroups on the running system, cannot be used across platforms, * and may not reflect the actual latency. It is platform and implementation * specific, so platform gets to decide its value. It would be nice if the * number was at least proportional to make comparisons more meaningful though. * NOTE: The numbers below are supposed to be load latencies for uncached * memory divided by 10. */ int plat_lgrp_latency(lgrp_handle_t from, lgrp_handle_t to) { /* * Return remote latency when there are more than two lgroups * (root and child) and getting latency between two different * lgroups or root is involved */ if (lgrp_optimizations() && (from != to || from == LGRP_DEFAULT_HANDLE || to == LGRP_DEFAULT_HANDLE)) return (17); else return (12); } int plat_pfn_to_mem_node(pfn_t pfn) { ASSERT(max_mem_nodes > 1); return (pfn >> mem_node_pfn_shift); } /* * Assign memnode to lgroups */ void plat_fill_mc(pnode_t nodeid) { int portid; /* * Schumacher memory controller portid == global CPU id */ if ((prom_getprop(nodeid, "portid", (caddr_t)&portid) == -1) || (portid < 0)) return; if (portid < max_mem_nodes) plat_assign_lgrphand_to_mem_node(portid, portid); }