2005-04-16 18:20:36 -04:00
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/*
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* acpi.c - Architecture-Specific Low-Level ACPI Support
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*
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* Copyright (C) 1999 VA Linux Systems
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* Copyright (C) 1999,2000 Walt Drummond <drummond@valinux.com>
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* Copyright (C) 2000, 2002-2003 Hewlett-Packard Co.
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* David Mosberger-Tang <davidm@hpl.hp.com>
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* Copyright (C) 2000 Intel Corp.
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* Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
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* Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
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* Copyright (C) 2001 Jenna Hall <jenna.s.hall@intel.com>
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* Copyright (C) 2001 Takayoshi Kochi <t-kochi@bq.jp.nec.com>
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* Copyright (C) 2002 Erich Focht <efocht@ess.nec.de>
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2005-03-31 22:51:10 -05:00
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* Copyright (C) 2004 Ashok Raj <ashok.raj@intel.com>
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2005-04-16 18:20:36 -04:00
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/smp.h>
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#include <linux/string.h>
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#include <linux/types.h>
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#include <linux/irq.h>
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#include <linux/acpi.h>
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#include <linux/efi.h>
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#include <linux/mmzone.h>
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#include <linux/nodemask.h>
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#include <asm/io.h>
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#include <asm/iosapic.h>
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#include <asm/machvec.h>
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#include <asm/page.h>
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#include <asm/system.h>
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#include <asm/numa.h>
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#include <asm/sal.h>
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#include <asm/cyclone.h>
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#define BAD_MADT_ENTRY(entry, end) ( \
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(!entry) || (unsigned long)entry + sizeof(*entry) > end || \
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2007-02-02 11:48:22 -05:00
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((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
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2005-04-16 18:20:36 -04:00
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#define PREFIX "ACPI: "
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void (*pm_idle) (void);
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EXPORT_SYMBOL(pm_idle);
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void (*pm_power_off) (void);
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EXPORT_SYMBOL(pm_power_off);
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2005-03-31 22:51:10 -05:00
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unsigned int acpi_cpei_override;
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unsigned int acpi_cpei_phys_cpuid;
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2005-08-05 00:44:28 -04:00
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const char *acpi_get_sysname(void)
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2005-04-16 18:20:36 -04:00
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{
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#ifdef CONFIG_IA64_GENERIC
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unsigned long rsdp_phys;
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2007-02-02 11:48:19 -05:00
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struct acpi_table_rsdp *rsdp;
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2005-04-16 18:20:36 -04:00
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struct acpi_table_xsdt *xsdt;
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struct acpi_table_header *hdr;
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rsdp_phys = acpi_find_rsdp();
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if (!rsdp_phys) {
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2005-08-05 00:44:28 -04:00
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printk(KERN_ERR
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"ACPI 2.0 RSDP not found, default to \"dig\"\n");
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2005-04-16 18:20:36 -04:00
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return "dig";
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}
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2007-02-02 11:48:19 -05:00
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rsdp = (struct acpi_table_rsdp *)__va(rsdp_phys);
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if (strncmp(rsdp->signature, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1)) {
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2005-08-05 00:44:28 -04:00
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printk(KERN_ERR
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"ACPI 2.0 RSDP signature incorrect, default to \"dig\"\n");
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2005-04-16 18:20:36 -04:00
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return "dig";
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}
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2007-02-02 11:48:22 -05:00
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xsdt = (struct acpi_table_xsdt *)__va(rsdp->xsdt_physical_address);
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2005-04-16 18:20:36 -04:00
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hdr = &xsdt->header;
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2007-02-02 11:48:19 -05:00
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if (strncmp(hdr->signature, ACPI_SIG_XSDT, sizeof(ACPI_SIG_XSDT) - 1)) {
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2005-08-05 00:44:28 -04:00
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printk(KERN_ERR
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"ACPI 2.0 XSDT signature incorrect, default to \"dig\"\n");
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2005-04-16 18:20:36 -04:00
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return "dig";
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}
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if (!strcmp(hdr->oem_id, "HP")) {
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return "hpzx1";
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2005-08-05 00:44:28 -04:00
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} else if (!strcmp(hdr->oem_id, "SGI")) {
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2005-04-16 18:20:36 -04:00
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return "sn2";
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}
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return "dig";
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#else
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# if defined (CONFIG_IA64_HP_SIM)
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return "hpsim";
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# elif defined (CONFIG_IA64_HP_ZX1)
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return "hpzx1";
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# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
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return "hpzx1_swiotlb";
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# elif defined (CONFIG_IA64_SGI_SN2)
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return "sn2";
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# elif defined (CONFIG_IA64_DIG)
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return "dig";
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# else
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# error Unknown platform. Fix acpi.c.
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# endif
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#endif
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}
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2005-08-24 12:07:20 -04:00
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#ifdef CONFIG_ACPI
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2005-04-16 18:20:36 -04:00
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#define ACPI_MAX_PLATFORM_INTERRUPTS 256
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/* Array to record platform interrupt vectors for generic interrupt routing. */
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int platform_intr_list[ACPI_MAX_PLATFORM_INTERRUPTS] = {
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[0 ... ACPI_MAX_PLATFORM_INTERRUPTS - 1] = -1
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};
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enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_IOSAPIC;
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/*
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* Interrupt routing API for device drivers. Provides interrupt vector for
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* a generic platform event. Currently only CPEI is implemented.
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*/
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2005-08-05 00:44:28 -04:00
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int acpi_request_vector(u32 int_type)
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2005-04-16 18:20:36 -04:00
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{
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int vector = -1;
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if (int_type < ACPI_MAX_PLATFORM_INTERRUPTS) {
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/* corrected platform error interrupt */
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vector = platform_intr_list[int_type];
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} else
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2005-08-05 00:44:28 -04:00
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printk(KERN_ERR
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"acpi_request_vector(): invalid interrupt type\n");
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2005-04-16 18:20:36 -04:00
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return vector;
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}
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2005-08-05 00:44:28 -04:00
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char *__acpi_map_table(unsigned long phys_addr, unsigned long size)
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2005-04-16 18:20:36 -04:00
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{
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return __va(phys_addr);
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}
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/* --------------------------------------------------------------------------
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Boot-time Table Parsing
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-------------------------------------------------------------------------- */
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2005-08-05 00:44:28 -04:00
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static int total_cpus __initdata;
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static int available_cpus __initdata;
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struct acpi_table_madt *acpi_madt __initdata;
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static u8 has_8259;
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2005-04-16 18:20:36 -04:00
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static int __init
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2007-02-02 11:48:22 -05:00
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acpi_parse_lapic_addr_ovr(struct acpi_subtable_header * header,
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2005-08-05 00:44:28 -04:00
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const unsigned long end)
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2005-04-16 18:20:36 -04:00
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{
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2007-02-02 11:48:22 -05:00
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struct acpi_madt_local_apic_override *lapic;
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2005-04-16 18:20:36 -04:00
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2007-02-02 11:48:22 -05:00
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lapic = (struct acpi_madt_local_apic_override *)header;
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2005-04-16 18:20:36 -04:00
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if (BAD_MADT_ENTRY(lapic, end))
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return -EINVAL;
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if (lapic->address) {
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iounmap(ipi_base_addr);
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ipi_base_addr = ioremap(lapic->address, 0);
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}
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return 0;
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}
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static int __init
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2007-02-02 11:48:22 -05:00
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acpi_parse_lsapic(struct acpi_subtable_header * header, const unsigned long end)
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2005-04-16 18:20:36 -04:00
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{
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2007-02-02 11:48:22 -05:00
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struct acpi_madt_local_sapic *lsapic;
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2005-04-16 18:20:36 -04:00
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2007-02-02 11:48:22 -05:00
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lsapic = (struct acpi_madt_local_sapic *)header;
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2005-04-16 18:20:36 -04:00
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2007-02-02 11:48:22 -05:00
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/*Skip BAD_MADT_ENTRY check, as lsapic size could vary */
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2005-04-16 18:20:36 -04:00
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2007-02-02 11:48:22 -05:00
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if (lsapic->lapic_flags & ACPI_MADT_ENABLED) {
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2005-04-16 18:20:36 -04:00
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#ifdef CONFIG_SMP
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2005-08-05 00:44:28 -04:00
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smp_boot_data.cpu_phys_id[available_cpus] =
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(lsapic->id << 8) | lsapic->eid;
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2005-04-16 18:20:36 -04:00
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#endif
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++available_cpus;
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}
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total_cpus++;
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return 0;
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}
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static int __init
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2007-02-02 11:48:22 -05:00
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acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long end)
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2005-04-16 18:20:36 -04:00
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{
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2007-02-02 11:48:22 -05:00
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struct acpi_madt_local_apic_nmi *lacpi_nmi;
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2005-04-16 18:20:36 -04:00
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2007-02-02 11:48:22 -05:00
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lacpi_nmi = (struct acpi_madt_local_apic_nmi *)header;
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2005-04-16 18:20:36 -04:00
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if (BAD_MADT_ENTRY(lacpi_nmi, end))
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return -EINVAL;
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/* TBD: Support lapic_nmi entries */
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return 0;
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}
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static int __init
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2007-02-02 11:48:22 -05:00
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acpi_parse_iosapic(struct acpi_subtable_header * header, const unsigned long end)
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2005-04-16 18:20:36 -04:00
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{
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2007-02-02 11:48:22 -05:00
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struct acpi_madt_io_sapic *iosapic;
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2005-04-16 18:20:36 -04:00
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2007-02-02 11:48:22 -05:00
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iosapic = (struct acpi_madt_io_sapic *)header;
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2005-04-16 18:20:36 -04:00
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if (BAD_MADT_ENTRY(iosapic, end))
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return -EINVAL;
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2005-04-28 03:25:58 -04:00
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return iosapic_init(iosapic->address, iosapic->global_irq_base);
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2005-04-16 18:20:36 -04:00
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}
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2006-05-13 01:12:15 -04:00
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static unsigned int __initdata acpi_madt_rev;
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2005-04-16 18:20:36 -04:00
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static int __init
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2007-02-02 11:48:22 -05:00
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acpi_parse_plat_int_src(struct acpi_subtable_header * header,
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2005-08-05 00:44:28 -04:00
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const unsigned long end)
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2005-04-16 18:20:36 -04:00
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{
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2007-02-02 11:48:22 -05:00
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struct acpi_madt_interrupt_source *plintsrc;
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2005-04-16 18:20:36 -04:00
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int vector;
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2007-02-02 11:48:22 -05:00
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plintsrc = (struct acpi_madt_interrupt_source *)header;
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2005-04-16 18:20:36 -04:00
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if (BAD_MADT_ENTRY(plintsrc, end))
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return -EINVAL;
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/*
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* Get vector assignment for this interrupt, set attributes,
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* and program the IOSAPIC routing table.
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*/
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vector = iosapic_register_platform_intr(plintsrc->type,
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plintsrc->global_irq,
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2007-02-02 11:48:22 -05:00
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plintsrc->io_sapic_vector,
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2005-04-16 18:20:36 -04:00
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plintsrc->eid,
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plintsrc->id,
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2007-02-02 11:48:22 -05:00
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((plintsrc->inti_flags & ACPI_MADT_POLARITY_MASK) ==
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ACPI_MADT_POLARITY_ACTIVE_HIGH) ?
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IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
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((plintsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) ==
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ACPI_MADT_TRIGGER_EDGE) ?
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IOSAPIC_EDGE : IOSAPIC_LEVEL);
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2005-04-16 18:20:36 -04:00
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platform_intr_list[plintsrc->type] = vector;
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2005-03-31 22:51:10 -05:00
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if (acpi_madt_rev > 1) {
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2007-02-02 11:48:22 -05:00
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acpi_cpei_override = plintsrc->flags & ACPI_MADT_CPEI_OVERRIDE;
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2005-03-31 22:51:10 -05:00
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}
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/*
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* Save the physical id, so we can check when its being removed
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*/
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acpi_cpei_phys_cpuid = ((plintsrc->id << 8) | (plintsrc->eid)) & 0xffff;
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2005-04-16 18:20:36 -04:00
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return 0;
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}
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2006-01-19 19:18:47 -05:00
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#ifdef CONFIG_HOTPLUG_CPU
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2005-03-31 22:51:10 -05:00
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unsigned int can_cpei_retarget(void)
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{
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extern int cpe_vector;
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2005-11-11 17:32:40 -05:00
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extern unsigned int force_cpei_retarget;
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2005-03-31 22:51:10 -05:00
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/*
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* Only if CPEI is supported and the override flag
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* is present, otherwise return that its re-targettable
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* if we are in polling mode.
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*/
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2005-11-11 17:32:40 -05:00
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if (cpe_vector > 0) {
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if (acpi_cpei_override || force_cpei_retarget)
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return 1;
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else
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return 0;
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}
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return 1;
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2005-03-31 22:51:10 -05:00
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}
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unsigned int is_cpu_cpei_target(unsigned int cpu)
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{
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unsigned int logical_id;
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logical_id = cpu_logical_id(acpi_cpei_phys_cpuid);
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if (logical_id == cpu)
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return 1;
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else
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return 0;
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|
|
}
|
|
|
|
|
|
|
|
void set_cpei_target_cpu(unsigned int cpu)
|
|
|
|
{
|
|
|
|
acpi_cpei_phys_cpuid = cpu_physical_id(cpu);
|
|
|
|
}
|
2006-01-19 19:18:47 -05:00
|
|
|
#endif
|
2005-03-31 22:51:10 -05:00
|
|
|
|
|
|
|
unsigned int get_cpei_target_cpu(void)
|
|
|
|
{
|
|
|
|
return acpi_cpei_phys_cpuid;
|
|
|
|
}
|
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
static int __init
|
2007-02-02 11:48:22 -05:00
|
|
|
acpi_parse_int_src_ovr(struct acpi_subtable_header * header,
|
2005-08-05 00:44:28 -04:00
|
|
|
const unsigned long end)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2007-02-02 11:48:22 -05:00
|
|
|
struct acpi_madt_interrupt_override *p;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
p = (struct acpi_madt_interrupt_override *)header;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
if (BAD_MADT_ENTRY(p, end))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
iosapic_override_isa_irq(p->source_irq, p->global_irq,
|
|
|
|
((p->inti_flags & ACPI_MADT_POLARITY_MASK) ==
|
|
|
|
ACPI_MADT_POLARITY_ACTIVE_HIGH) ?
|
|
|
|
IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
|
|
|
|
((p->inti_flags & ACPI_MADT_TRIGGER_MASK) ==
|
|
|
|
ACPI_MADT_TRIGGER_EDGE) ?
|
|
|
|
IOSAPIC_EDGE : IOSAPIC_LEVEL);
|
2005-04-16 18:20:36 -04:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int __init
|
2007-02-02 11:48:22 -05:00
|
|
|
acpi_parse_nmi_src(struct acpi_subtable_header * header, const unsigned long end)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2007-02-02 11:48:22 -05:00
|
|
|
struct acpi_madt_nmi_source *nmi_src;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
nmi_src = (struct acpi_madt_nmi_source *)header;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
if (BAD_MADT_ENTRY(nmi_src, end))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* TBD: Support nimsrc entries */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
static void __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2005-08-05 00:44:28 -04:00
|
|
|
if (!strncmp(oem_id, "IBM", 3) && (!strncmp(oem_table_id, "SERMOW", 6))) {
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Unfortunately ITC_DRIFT is not yet part of the
|
|
|
|
* official SAL spec, so the ITC_DRIFT bit is not
|
|
|
|
* set by the BIOS on this hardware.
|
|
|
|
*/
|
|
|
|
sal_platform_features |= IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT;
|
|
|
|
|
|
|
|
cyclone_setup();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
static int __init acpi_parse_madt(struct acpi_table_header *table)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2007-02-02 11:48:22 -05:00
|
|
|
if (!table)
|
2005-04-16 18:20:36 -04:00
|
|
|
return -EINVAL;
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
acpi_madt = (struct acpi_table_madt *)table;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2005-03-31 22:51:10 -05:00
|
|
|
acpi_madt_rev = acpi_madt->header.revision;
|
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
/* remember the value for reference after free_initmem() */
|
|
|
|
#ifdef CONFIG_ITANIUM
|
2005-08-05 00:44:28 -04:00
|
|
|
has_8259 = 1; /* Firmware on old Itanium systems is broken */
|
2005-04-16 18:20:36 -04:00
|
|
|
#else
|
2007-02-02 11:48:22 -05:00
|
|
|
has_8259 = acpi_madt->flags & ACPI_MADT_PCAT_COMPAT;
|
2005-04-16 18:20:36 -04:00
|
|
|
#endif
|
|
|
|
iosapic_system_init(has_8259);
|
|
|
|
|
|
|
|
/* Get base address of IPI Message Block */
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
if (acpi_madt->address)
|
|
|
|
ipi_base_addr = ioremap(acpi_madt->address, 0);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
printk(KERN_INFO PREFIX "Local APIC address %p\n", ipi_base_addr);
|
|
|
|
|
|
|
|
acpi_madt_oem_check(acpi_madt->header.oem_id,
|
2005-08-05 00:44:28 -04:00
|
|
|
acpi_madt->header.oem_table_id);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef CONFIG_ACPI_NUMA
|
|
|
|
|
|
|
|
#undef SLIT_DEBUG
|
|
|
|
|
|
|
|
#define PXM_FLAG_LEN ((MAX_PXM_DOMAINS + 1)/32)
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
static int __initdata srat_num_cpus; /* number of cpus */
|
2005-04-16 18:20:36 -04:00
|
|
|
static u32 __devinitdata pxm_flag[PXM_FLAG_LEN];
|
|
|
|
#define pxm_bit_set(bit) (set_bit(bit,(void *)pxm_flag))
|
|
|
|
#define pxm_bit_test(bit) (test_bit(bit,(void *)pxm_flag))
|
|
|
|
static struct acpi_table_slit __initdata *slit_table;
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
static int get_processor_proximity_domain(struct acpi_srat_cpu_affinity *pa)
|
2006-03-02 17:02:25 -05:00
|
|
|
{
|
|
|
|
int pxm;
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
pxm = pa->proximity_domain_lo;
|
2006-03-02 17:02:25 -05:00
|
|
|
if (ia64_platform_is("sn2"))
|
2007-02-02 11:48:22 -05:00
|
|
|
pxm += pa->proximity_domain_hi[0] << 8;
|
2006-03-02 17:02:25 -05:00
|
|
|
return pxm;
|
|
|
|
}
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
static int get_memory_proximity_domain(struct acpi_srat_mem_affinity *ma)
|
2006-03-02 17:02:25 -05:00
|
|
|
{
|
|
|
|
int pxm;
|
|
|
|
|
|
|
|
pxm = ma->proximity_domain;
|
2007-02-02 22:02:55 -05:00
|
|
|
if (!ia64_platform_is("sn2"))
|
|
|
|
pxm &= 0xff;
|
2007-02-02 11:48:22 -05:00
|
|
|
|
2006-03-02 17:02:25 -05:00
|
|
|
return pxm;
|
|
|
|
}
|
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
/*
|
|
|
|
* ACPI 2.0 SLIT (System Locality Information Table)
|
|
|
|
* http://devresource.hp.com/devresource/Docs/TechPapers/IA64/slit.pdf
|
|
|
|
*/
|
2005-08-05 00:44:28 -04:00
|
|
|
void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
u32 len;
|
|
|
|
|
|
|
|
len = sizeof(struct acpi_table_header) + 8
|
2007-02-02 11:48:22 -05:00
|
|
|
+ slit->locality_count * slit->locality_count;
|
2005-04-16 18:20:36 -04:00
|
|
|
if (slit->header.length != len) {
|
2005-08-05 00:44:28 -04:00
|
|
|
printk(KERN_ERR
|
|
|
|
"ACPI 2.0 SLIT: size mismatch: %d expected, %d actual\n",
|
2005-04-16 18:20:36 -04:00
|
|
|
len, slit->header.length);
|
|
|
|
memset(numa_slit, 10, sizeof(numa_slit));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
slit_table = slit;
|
|
|
|
}
|
|
|
|
|
|
|
|
void __init
|
2007-02-02 11:48:22 -05:00
|
|
|
acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2006-03-02 17:02:25 -05:00
|
|
|
int pxm;
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
if (!(pa->flags & ACPI_SRAT_CPU_ENABLED))
|
2006-03-15 00:45:11 -05:00
|
|
|
return;
|
|
|
|
|
2006-03-02 17:02:25 -05:00
|
|
|
pxm = get_processor_proximity_domain(pa);
|
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
/* record this node in proximity bitmap */
|
2006-03-02 17:02:25 -05:00
|
|
|
pxm_bit_set(pxm);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
node_cpuid[srat_num_cpus].phys_id =
|
2007-02-02 11:48:22 -05:00
|
|
|
(pa->apic_id << 8) | (pa->local_sapic_eid);
|
2005-04-16 18:20:36 -04:00
|
|
|
/* nid should be overridden as logical node id later */
|
2006-03-02 17:02:25 -05:00
|
|
|
node_cpuid[srat_num_cpus].nid = pxm;
|
2005-04-16 18:20:36 -04:00
|
|
|
srat_num_cpus++;
|
|
|
|
}
|
|
|
|
|
|
|
|
void __init
|
2007-02-02 11:48:22 -05:00
|
|
|
acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
unsigned long paddr, size;
|
2006-03-02 17:02:25 -05:00
|
|
|
int pxm;
|
2005-04-16 18:20:36 -04:00
|
|
|
struct node_memblk_s *p, *q, *pend;
|
|
|
|
|
2006-03-02 17:02:25 -05:00
|
|
|
pxm = get_memory_proximity_domain(ma);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
/* fill node memory chunk structure */
|
2007-02-02 11:48:22 -05:00
|
|
|
paddr = ma->base_address;
|
|
|
|
size = ma->length;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
/* Ignore disabled entries */
|
2007-02-02 11:48:22 -05:00
|
|
|
if (!(ma->flags & ACPI_SRAT_MEM_ENABLED))
|
2005-04-16 18:20:36 -04:00
|
|
|
return;
|
|
|
|
|
|
|
|
/* record this node in proximity bitmap */
|
|
|
|
pxm_bit_set(pxm);
|
|
|
|
|
|
|
|
/* Insertion sort based on base address */
|
|
|
|
pend = &node_memblk[num_node_memblks];
|
|
|
|
for (p = &node_memblk[0]; p < pend; p++) {
|
|
|
|
if (paddr < p->start_paddr)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (p < pend) {
|
|
|
|
for (q = pend - 1; q >= p; q--)
|
|
|
|
*(q + 1) = *q;
|
|
|
|
}
|
|
|
|
p->start_paddr = paddr;
|
|
|
|
p->size = size;
|
|
|
|
p->nid = pxm;
|
|
|
|
num_node_memblks++;
|
|
|
|
}
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
void __init acpi_numa_arch_fixup(void)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
int i, j, node_from, node_to;
|
|
|
|
|
|
|
|
/* If there's no SRAT, fix the phys_id and mark node 0 online */
|
|
|
|
if (srat_num_cpus == 0) {
|
|
|
|
node_set_online(0);
|
|
|
|
node_cpuid[0].phys_id = hard_smp_processor_id();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* MCD - This can probably be dropped now. No need for pxm ID to node ID
|
|
|
|
* mapping with sparse node numbering iff MAX_PXM_DOMAINS <= MAX_NUMNODES.
|
|
|
|
*/
|
|
|
|
nodes_clear(node_online_map);
|
|
|
|
for (i = 0; i < MAX_PXM_DOMAINS; i++) {
|
|
|
|
if (pxm_bit_test(i)) {
|
2006-06-23 05:03:19 -04:00
|
|
|
int nid = acpi_map_pxm_to_node(i);
|
2005-04-16 18:20:36 -04:00
|
|
|
node_set_online(nid);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* set logical node id in memory chunk structure */
|
|
|
|
for (i = 0; i < num_node_memblks; i++)
|
2006-06-23 05:03:19 -04:00
|
|
|
node_memblk[i].nid = pxm_to_node(node_memblk[i].nid);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
/* assign memory bank numbers for each chunk on each node */
|
|
|
|
for_each_online_node(i) {
|
|
|
|
int bank;
|
|
|
|
|
|
|
|
bank = 0;
|
|
|
|
for (j = 0; j < num_node_memblks; j++)
|
|
|
|
if (node_memblk[j].nid == i)
|
|
|
|
node_memblk[j].bank = bank++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* set logical node id in cpu structure */
|
|
|
|
for (i = 0; i < srat_num_cpus; i++)
|
2006-06-23 05:03:19 -04:00
|
|
|
node_cpuid[i].nid = pxm_to_node(node_cpuid[i].nid);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
printk(KERN_INFO "Number of logical nodes in system = %d\n",
|
|
|
|
num_online_nodes());
|
|
|
|
printk(KERN_INFO "Number of memory chunks in system = %d\n",
|
|
|
|
num_node_memblks);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
if (!slit_table)
|
|
|
|
return;
|
2005-04-16 18:20:36 -04:00
|
|
|
memset(numa_slit, -1, sizeof(numa_slit));
|
2007-02-02 11:48:22 -05:00
|
|
|
for (i = 0; i < slit_table->locality_count; i++) {
|
2005-04-16 18:20:36 -04:00
|
|
|
if (!pxm_bit_test(i))
|
|
|
|
continue;
|
2006-06-23 05:03:19 -04:00
|
|
|
node_from = pxm_to_node(i);
|
2007-02-02 11:48:22 -05:00
|
|
|
for (j = 0; j < slit_table->locality_count; j++) {
|
2005-04-16 18:20:36 -04:00
|
|
|
if (!pxm_bit_test(j))
|
|
|
|
continue;
|
2006-06-23 05:03:19 -04:00
|
|
|
node_to = pxm_to_node(j);
|
2005-04-16 18:20:36 -04:00
|
|
|
node_distance(node_from, node_to) =
|
2007-02-02 11:48:22 -05:00
|
|
|
slit_table->entry[i * slit_table->locality_count + j];
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef SLIT_DEBUG
|
|
|
|
printk("ACPI 2.0 SLIT locality table:\n");
|
|
|
|
for_each_online_node(i) {
|
|
|
|
for_each_online_node(j)
|
2005-08-05 00:44:28 -04:00
|
|
|
printk("%03d ", node_distance(i, j));
|
2005-04-16 18:20:36 -04:00
|
|
|
printk("\n");
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
2005-08-05 00:44:28 -04:00
|
|
|
#endif /* CONFIG_ACPI_NUMA */
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2005-07-28 14:42:00 -04:00
|
|
|
/*
|
|
|
|
* success: return IRQ number (>=0)
|
|
|
|
* failure: return < 0
|
|
|
|
*/
|
2005-12-28 02:43:51 -05:00
|
|
|
int acpi_register_gsi(u32 gsi, int triggering, int polarity)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2006-12-22 12:50:04 -05:00
|
|
|
if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM)
|
|
|
|
return gsi;
|
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
if (has_8259 && gsi < 16)
|
|
|
|
return isa_irq_to_vector(gsi);
|
|
|
|
|
|
|
|
return iosapic_register_intr(gsi,
|
2005-12-28 02:43:51 -05:00
|
|
|
(polarity ==
|
2005-08-05 00:44:28 -04:00
|
|
|
ACPI_ACTIVE_HIGH) ? IOSAPIC_POL_HIGH :
|
|
|
|
IOSAPIC_POL_LOW,
|
2005-12-28 02:43:51 -05:00
|
|
|
(triggering ==
|
2005-08-05 00:44:28 -04:00
|
|
|
ACPI_EDGE_SENSITIVE) ? IOSAPIC_EDGE :
|
|
|
|
IOSAPIC_LEVEL);
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
2005-08-05 00:44:28 -04:00
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
EXPORT_SYMBOL(acpi_register_gsi);
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
void acpi_unregister_gsi(u32 gsi)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2007-02-03 04:14:02 -05:00
|
|
|
if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM)
|
|
|
|
return;
|
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
iosapic_unregister_intr(gsi);
|
|
|
|
}
|
2005-08-05 00:44:28 -04:00
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
EXPORT_SYMBOL(acpi_unregister_gsi);
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
static int __init acpi_parse_fadt(struct acpi_table_header *table)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
struct acpi_table_header *fadt_header;
|
2007-02-02 11:48:22 -05:00
|
|
|
struct acpi_table_fadt *fadt;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
if (!table)
|
2005-04-16 18:20:36 -04:00
|
|
|
return -EINVAL;
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
fadt_header = (struct acpi_table_header *)table;
|
2005-04-16 18:20:36 -04:00
|
|
|
if (fadt_header->revision != 3)
|
2005-08-05 00:44:28 -04:00
|
|
|
return -ENODEV; /* Only deal with ACPI 2.0 FADT */
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
fadt = (struct acpi_table_fadt *)fadt_header;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
acpi_register_gsi(fadt->sci_interrupt, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
|
2005-04-16 18:20:36 -04:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
unsigned long __init acpi_find_rsdp(void)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
unsigned long rsdp_phys = 0;
|
|
|
|
|
2006-03-26 04:37:08 -05:00
|
|
|
if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
|
|
|
|
rsdp_phys = efi.acpi20;
|
|
|
|
else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
|
2005-08-05 00:44:28 -04:00
|
|
|
printk(KERN_WARNING PREFIX
|
|
|
|
"v1.0/r0.71 tables no longer supported\n");
|
2005-04-16 18:20:36 -04:00
|
|
|
return rsdp_phys;
|
|
|
|
}
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
int __init acpi_boot_init(void)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
|
|
|
|
/*
|
|
|
|
* MADT
|
|
|
|
* ----
|
|
|
|
* Parse the Multiple APIC Description Table (MADT), if exists.
|
|
|
|
* Note that this table provides platform SMP configuration
|
|
|
|
* information -- the successor to MPS tables.
|
|
|
|
*/
|
|
|
|
|
2007-02-16 16:07:27 -05:00
|
|
|
if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
|
2005-04-16 18:20:36 -04:00
|
|
|
printk(KERN_ERR PREFIX "Can't find MADT\n");
|
|
|
|
goto skip_madt;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Local APIC */
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
if (acpi_table_parse_madt
|
2007-02-02 11:48:22 -05:00
|
|
|
(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, acpi_parse_lapic_addr_ovr, 0) < 0)
|
2005-08-05 00:44:28 -04:00
|
|
|
printk(KERN_ERR PREFIX
|
|
|
|
"Error parsing LAPIC address override entry\n");
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, acpi_parse_lsapic, NR_CPUS)
|
2005-08-05 00:44:28 -04:00
|
|
|
< 1)
|
|
|
|
printk(KERN_ERR PREFIX
|
|
|
|
"Error parsing MADT - no LAPIC entries\n");
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, acpi_parse_lapic_nmi, 0)
|
2005-08-05 00:44:28 -04:00
|
|
|
< 0)
|
2005-04-16 18:20:36 -04:00
|
|
|
printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
|
|
|
|
|
|
|
|
/* I/O APIC */
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
if (acpi_table_parse_madt
|
2007-02-02 11:48:22 -05:00
|
|
|
(ACPI_MADT_TYPE_IO_SAPIC, acpi_parse_iosapic, NR_IOSAPICS) < 1)
|
2005-08-05 00:44:28 -04:00
|
|
|
printk(KERN_ERR PREFIX
|
|
|
|
"Error parsing MADT - no IOSAPIC entries\n");
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
/* System-Level Interrupt Routing */
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
if (acpi_table_parse_madt
|
2007-02-02 11:48:22 -05:00
|
|
|
(ACPI_MADT_TYPE_INTERRUPT_SOURCE, acpi_parse_plat_int_src,
|
2005-08-05 00:44:28 -04:00
|
|
|
ACPI_MAX_PLATFORM_INTERRUPTS) < 0)
|
|
|
|
printk(KERN_ERR PREFIX
|
|
|
|
"Error parsing platform interrupt source entry\n");
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
if (acpi_table_parse_madt
|
2007-02-02 11:48:22 -05:00
|
|
|
(ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, acpi_parse_int_src_ovr, 0) < 0)
|
2005-08-05 00:44:28 -04:00
|
|
|
printk(KERN_ERR PREFIX
|
|
|
|
"Error parsing interrupt source overrides entry\n");
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
if (acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, acpi_parse_nmi_src, 0) < 0)
|
2005-04-16 18:20:36 -04:00
|
|
|
printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n");
|
2005-08-05 00:44:28 -04:00
|
|
|
skip_madt:
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* FADT says whether a legacy keyboard controller is present.
|
|
|
|
* The FADT also contains an SCI_INT line, by which the system
|
|
|
|
* gets interrupts such as power and sleep buttons. If it's not
|
|
|
|
* on a Legacy interrupt, it needs to be setup.
|
|
|
|
*/
|
2007-02-16 16:07:27 -05:00
|
|
|
if (acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt))
|
2005-04-16 18:20:36 -04:00
|
|
|
printk(KERN_ERR PREFIX "Can't find FADT\n");
|
|
|
|
|
|
|
|
#ifdef CONFIG_SMP
|
|
|
|
if (available_cpus == 0) {
|
|
|
|
printk(KERN_INFO "ACPI: Found 0 CPUS; assuming 1\n");
|
|
|
|
printk(KERN_INFO "CPU 0 (0x%04x)", hard_smp_processor_id());
|
2005-08-05 00:44:28 -04:00
|
|
|
smp_boot_data.cpu_phys_id[available_cpus] =
|
|
|
|
hard_smp_processor_id();
|
|
|
|
available_cpus = 1; /* We've got at least one of these, no? */
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
|
|
|
smp_boot_data.cpu_count = available_cpus;
|
|
|
|
|
|
|
|
smp_build_cpu_map();
|
|
|
|
# ifdef CONFIG_ACPI_NUMA
|
|
|
|
if (srat_num_cpus == 0) {
|
|
|
|
int cpu, i = 1;
|
|
|
|
for (cpu = 0; cpu < smp_boot_data.cpu_count; cpu++)
|
2005-08-05 00:44:28 -04:00
|
|
|
if (smp_boot_data.cpu_phys_id[cpu] !=
|
|
|
|
hard_smp_processor_id())
|
|
|
|
node_cpuid[i++].phys_id =
|
|
|
|
smp_boot_data.cpu_phys_id[cpu];
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
|
|
|
# endif
|
2005-07-06 21:18:10 -04:00
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_ACPI_NUMA
|
|
|
|
build_cpu_to_node_map();
|
2005-04-16 18:20:36 -04:00
|
|
|
#endif
|
|
|
|
/* Make boot-up look pretty */
|
2005-08-05 00:44:28 -04:00
|
|
|
printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus,
|
|
|
|
total_cpus);
|
2005-04-16 18:20:36 -04:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
int vector;
|
|
|
|
|
|
|
|
if (has_8259 && gsi < 16)
|
|
|
|
*irq = isa_irq_to_vector(gsi);
|
|
|
|
else {
|
|
|
|
vector = gsi_to_vector(gsi);
|
|
|
|
if (vector == -1)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
*irq = vector;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* ACPI based hotplug CPU support
|
|
|
|
*/
|
|
|
|
#ifdef CONFIG_ACPI_HOTPLUG_CPU
|
|
|
|
static
|
2005-08-05 00:44:28 -04:00
|
|
|
int acpi_map_cpu2node(acpi_handle handle, int cpu, long physid)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
#ifdef CONFIG_ACPI_NUMA
|
2005-08-05 00:44:28 -04:00
|
|
|
int pxm_id;
|
2006-09-25 19:25:21 -04:00
|
|
|
int nid;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
pxm_id = acpi_get_pxm(handle);
|
|
|
|
/*
|
2006-09-25 19:25:21 -04:00
|
|
|
* We don't have cpu-only-node hotadd. But if the system equips
|
|
|
|
* SRAT table, pxm is already found and node is ready.
|
|
|
|
* So, just pxm_to_nid(pxm) is OK.
|
|
|
|
* This code here is for the system which doesn't have full SRAT
|
|
|
|
* table for possible cpus.
|
2005-04-16 18:20:36 -04:00
|
|
|
*/
|
2006-09-25 19:25:21 -04:00
|
|
|
nid = acpi_map_pxm_to_node(pxm_id);
|
2005-08-05 00:44:28 -04:00
|
|
|
node_cpuid[cpu].phys_id = physid;
|
2006-09-25 19:25:21 -04:00
|
|
|
node_cpuid[cpu].nid = nid;
|
2005-04-16 18:20:36 -04:00
|
|
|
#endif
|
2005-08-05 00:44:28 -04:00
|
|
|
return (0);
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
|
|
|
|
2006-02-14 18:01:12 -05:00
|
|
|
int additional_cpus __initdata = -1;
|
|
|
|
|
|
|
|
static __init int setup_additional_cpus(char *s)
|
|
|
|
{
|
|
|
|
if (s)
|
|
|
|
additional_cpus = simple_strtol(s, NULL, 0);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
early_param("additional_cpus", setup_additional_cpus);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* cpu_possible_map should be static, it cannot change as cpu's
|
|
|
|
* are onlined, or offlined. The reason is per-cpu data-structures
|
|
|
|
* are allocated by some modules at init time, and dont expect to
|
|
|
|
* do this dynamically on cpu arrival/departure.
|
|
|
|
* cpu_present_map on the other hand can change dynamically.
|
|
|
|
* In case when cpu_hotplug is not compiled, then we resort to current
|
|
|
|
* behaviour, which is cpu_possible == cpu_present.
|
|
|
|
* - Ashok Raj
|
|
|
|
*
|
|
|
|
* Three ways to find out the number of additional hotplug CPUs:
|
|
|
|
* - If the BIOS specified disabled CPUs in ACPI/mptables use that.
|
|
|
|
* - The user can overwrite it with additional_cpus=NUM
|
|
|
|
* - Otherwise don't reserve additional CPUs.
|
|
|
|
*/
|
|
|
|
__init void prefill_possible_map(void)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int possible, disabled_cpus;
|
|
|
|
|
|
|
|
disabled_cpus = total_cpus - available_cpus;
|
2006-02-16 17:01:48 -05:00
|
|
|
|
2006-02-14 18:01:12 -05:00
|
|
|
if (additional_cpus == -1) {
|
2006-02-16 17:01:48 -05:00
|
|
|
if (disabled_cpus > 0)
|
2006-02-14 18:01:12 -05:00
|
|
|
additional_cpus = disabled_cpus;
|
2006-02-16 17:01:48 -05:00
|
|
|
else
|
2006-02-14 18:01:12 -05:00
|
|
|
additional_cpus = 0;
|
2006-02-16 17:01:48 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
possible = available_cpus + additional_cpus;
|
|
|
|
|
2006-02-14 18:01:12 -05:00
|
|
|
if (possible > NR_CPUS)
|
|
|
|
possible = NR_CPUS;
|
|
|
|
|
|
|
|
printk(KERN_INFO "SMP: Allowing %d CPUs, %d hotplug CPUs\n",
|
2006-02-16 17:01:48 -05:00
|
|
|
possible, max((possible - available_cpus), 0));
|
2006-02-14 18:01:12 -05:00
|
|
|
|
|
|
|
for (i = 0; i < possible; i++)
|
|
|
|
cpu_set(i, cpu_possible_map);
|
|
|
|
}
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
int acpi_map_lsapic(acpi_handle handle, int *pcpu)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2005-08-05 00:44:28 -04:00
|
|
|
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
|
2005-04-16 18:20:36 -04:00
|
|
|
union acpi_object *obj;
|
2007-02-02 11:48:22 -05:00
|
|
|
struct acpi_madt_local_sapic *lsapic;
|
2005-04-16 18:20:36 -04:00
|
|
|
cpumask_t tmp_map;
|
|
|
|
long physid;
|
|
|
|
int cpu;
|
2005-08-05 00:44:28 -04:00
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
if (!buffer.length || !buffer.pointer)
|
2005-04-16 18:20:36 -04:00
|
|
|
return -EINVAL;
|
2005-08-05 00:44:28 -04:00
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
obj = buffer.pointer;
|
2007-02-02 11:48:22 -05:00
|
|
|
if (obj->type != ACPI_TYPE_BUFFER)
|
|
|
|
{
|
2006-06-30 03:19:10 -04:00
|
|
|
kfree(buffer.pointer);
|
2005-04-16 18:20:36 -04:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
lsapic = (struct acpi_madt_local_sapic *)obj->buffer.pointer;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
if ((lsapic->header.type != ACPI_MADT_TYPE_LOCAL_SAPIC) ||
|
|
|
|
(!lsapic->lapic_flags & ACPI_MADT_ENABLED)) {
|
2006-06-30 03:19:10 -04:00
|
|
|
kfree(buffer.pointer);
|
2005-04-16 18:20:36 -04:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
physid = ((lsapic->id << 8) | (lsapic->eid));
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2006-06-30 03:19:10 -04:00
|
|
|
kfree(buffer.pointer);
|
2005-04-16 18:20:36 -04:00
|
|
|
buffer.length = ACPI_ALLOCATE_BUFFER;
|
|
|
|
buffer.pointer = NULL;
|
|
|
|
|
|
|
|
cpus_complement(tmp_map, cpu_present_map);
|
|
|
|
cpu = first_cpu(tmp_map);
|
2005-08-05 00:44:28 -04:00
|
|
|
if (cpu >= NR_CPUS)
|
2005-04-16 18:20:36 -04:00
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
acpi_map_cpu2node(handle, cpu, physid);
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
cpu_set(cpu, cpu_present_map);
|
2005-04-16 18:20:36 -04:00
|
|
|
ia64_cpu_to_sapicid[cpu] = physid;
|
|
|
|
|
|
|
|
*pcpu = cpu;
|
2005-08-05 00:44:28 -04:00
|
|
|
return (0);
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
EXPORT_SYMBOL(acpi_map_lsapic);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
int acpi_unmap_lsapic(int cpu)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
ia64_cpu_to_sapicid[cpu] = -1;
|
2005-08-05 00:44:28 -04:00
|
|
|
cpu_clear(cpu, cpu_present_map);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
#ifdef CONFIG_ACPI_NUMA
|
|
|
|
/* NUMA specific cleanup's */
|
|
|
|
#endif
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
return (0);
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
2005-08-05 00:44:28 -04:00
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
EXPORT_SYMBOL(acpi_unmap_lsapic);
|
2005-08-05 00:44:28 -04:00
|
|
|
#endif /* CONFIG_ACPI_HOTPLUG_CPU */
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
#ifdef CONFIG_ACPI_NUMA
|
2005-09-16 13:43:45 -04:00
|
|
|
static acpi_status __devinit
|
2005-08-05 00:44:28 -04:00
|
|
|
acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2005-08-05 00:44:28 -04:00
|
|
|
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
|
2005-04-16 18:20:36 -04:00
|
|
|
union acpi_object *obj;
|
2007-02-02 11:48:22 -05:00
|
|
|
struct acpi_madt_io_sapic *iosapic;
|
2005-04-16 18:20:36 -04:00
|
|
|
unsigned int gsi_base;
|
2005-03-25 00:58:00 -05:00
|
|
|
int pxm, node;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
/* Only care about objects w/ a method that returns the MADT */
|
|
|
|
if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
|
|
|
|
return AE_OK;
|
|
|
|
|
|
|
|
if (!buffer.length || !buffer.pointer)
|
|
|
|
return AE_OK;
|
|
|
|
|
|
|
|
obj = buffer.pointer;
|
|
|
|
if (obj->type != ACPI_TYPE_BUFFER ||
|
|
|
|
obj->buffer.length < sizeof(*iosapic)) {
|
2006-06-30 03:19:10 -04:00
|
|
|
kfree(buffer.pointer);
|
2005-04-16 18:20:36 -04:00
|
|
|
return AE_OK;
|
|
|
|
}
|
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
iosapic = (struct acpi_madt_io_sapic *)obj->buffer.pointer;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:22 -05:00
|
|
|
if (iosapic->header.type != ACPI_MADT_TYPE_IO_SAPIC) {
|
2006-06-30 03:19:10 -04:00
|
|
|
kfree(buffer.pointer);
|
2005-04-16 18:20:36 -04:00
|
|
|
return AE_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
gsi_base = iosapic->global_irq_base;
|
|
|
|
|
2006-06-30 03:19:10 -04:00
|
|
|
kfree(buffer.pointer);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
/*
|
2005-03-25 00:58:00 -05:00
|
|
|
* OK, it's an IOSAPIC MADT entry, look for a _PXM value to tell
|
2005-04-16 18:20:36 -04:00
|
|
|
* us which node to associate this with.
|
|
|
|
*/
|
2005-03-25 00:58:00 -05:00
|
|
|
pxm = acpi_get_pxm(handle);
|
|
|
|
if (pxm < 0)
|
2005-04-16 18:20:36 -04:00
|
|
|
return AE_OK;
|
|
|
|
|
2006-06-23 05:03:19 -04:00
|
|
|
node = pxm_to_node(pxm);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
if (node >= MAX_NUMNODES || !node_online(node) ||
|
|
|
|
cpus_empty(node_to_cpumask(node)))
|
|
|
|
return AE_OK;
|
|
|
|
|
|
|
|
/* We know a gsi to node mapping! */
|
|
|
|
map_iosapic_to_node(gsi_base, node);
|
|
|
|
return AE_OK;
|
|
|
|
}
|
2005-09-16 13:43:45 -04:00
|
|
|
|
|
|
|
static int __init
|
|
|
|
acpi_map_iosapics (void)
|
|
|
|
{
|
|
|
|
acpi_get_devices(NULL, acpi_map_iosapic, NULL, NULL);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
fs_initcall(acpi_map_iosapics);
|
|
|
|
#endif /* CONFIG_ACPI_NUMA */
|
2005-04-28 03:25:58 -04:00
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
|
2005-04-28 03:25:58 -04:00
|
|
|
{
|
2005-04-28 03:25:58 -04:00
|
|
|
int err;
|
|
|
|
|
|
|
|
if ((err = iosapic_init(phys_addr, gsi_base)))
|
|
|
|
return err;
|
|
|
|
|
2005-09-15 01:36:35 -04:00
|
|
|
#ifdef CONFIG_ACPI_NUMA
|
2005-04-28 03:25:58 -04:00
|
|
|
acpi_map_iosapic(handle, 0, NULL, NULL);
|
2005-08-05 00:44:28 -04:00
|
|
|
#endif /* CONFIG_ACPI_NUMA */
|
2005-04-28 03:25:58 -04:00
|
|
|
|
|
|
|
return 0;
|
2005-04-28 03:25:58 -04:00
|
|
|
}
|
2005-08-05 00:44:28 -04:00
|
|
|
|
2005-04-28 03:25:58 -04:00
|
|
|
EXPORT_SYMBOL(acpi_register_ioapic);
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
|
2005-04-28 03:25:58 -04:00
|
|
|
{
|
2005-04-28 03:25:58 -04:00
|
|
|
return iosapic_remove(gsi_base);
|
2005-04-28 03:25:58 -04:00
|
|
|
}
|
2005-08-05 00:44:28 -04:00
|
|
|
|
2005-04-28 03:25:58 -04:00
|
|
|
EXPORT_SYMBOL(acpi_unregister_ioapic);
|
|
|
|
|
2005-08-24 12:07:20 -04:00
|
|
|
#endif /* CONFIG_ACPI */
|