forked from KolibriOS/kolibrios
617 lines
15 KiB
C
617 lines
15 KiB
C
/*
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* boot.c - Architecture-Specific Low-Level ACPI Boot Support
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*
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* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
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* Copyright (C) 2001 Jun Nakajima <jun.nakajima@intel.com>
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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/init.h>
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#include <linux/acpi.h>
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#include <linux/module.h>
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#include <linux/dmi.h>
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#include <linux/pci.h>
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static inline void outb(u8 v, u16 port)
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{
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asm volatile("outb %0,%1" : : "a" (v), "dN" (port));
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}
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static inline u8 inb(u16 port)
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{
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u8 v;
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asm volatile("inb %1,%0" : "=a" (v) : "dN" (port));
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return v;
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}
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static int __initdata acpi_force = 0;
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int acpi_disabled;
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EXPORT_SYMBOL(acpi_disabled);
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#ifdef CONFIG_X86_64
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# include <asm/proto.h>
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#endif /* X86 */
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#define PREFIX "ACPI: "
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int acpi_noirq; /* skip ACPI IRQ initialization */
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int acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */
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EXPORT_SYMBOL(acpi_pci_disabled);
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int acpi_ioapic;
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int acpi_strict;
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u8 acpi_sci_flags __initdata;
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/*
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* acpi_pic_sci_set_trigger()
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*
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* use ELCR to set PIC-mode trigger type for SCI
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*
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* If a PIC-mode SCI is not recognized or gives spurious IRQ7's
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* it may require Edge Trigger -- use "acpi_sci=edge"
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*
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* Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers
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* for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge.
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* ECLR1 is IRQs 0-7 (IRQ 0, 1, 2 must be 0)
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* ECLR2 is IRQs 8-15 (IRQ 8, 13 must be 0)
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*/
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void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
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{
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unsigned int mask = 1 << irq;
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unsigned int old, new;
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/* Real old ELCR mask */
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// old = inb(0x4d0) | (inb(0x4d1) << 8);
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/*
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* If we use ACPI to set PCI IRQs, then we should clear ELCR
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* since we will set it correctly as we enable the PCI irq
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* routing.
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*/
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new = acpi_noirq ? old : 0;
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/*
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* Update SCI information in the ELCR, it isn't in the PCI
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* routing tables..
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*/
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switch (trigger) {
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case 1: /* Edge - clear */
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new &= ~mask;
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break;
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case 3: /* Level - set */
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new |= mask;
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break;
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}
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if (old == new)
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return;
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printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old);
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// outb(new, 0x4d0);
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// outb(new >> 8, 0x4d1);
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}
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static int __init acpi_parse_sbf(struct acpi_table_header *table)
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{
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struct acpi_table_boot *sb = (struct acpi_table_boot *)table;
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sbf_port = sb->cmos_index; /* Save CMOS port */
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return 0;
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}
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#ifdef CONFIG_HPET_TIMER
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#include <asm/hpet.h>
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static struct resource *hpet_res __initdata;
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static int __init acpi_parse_hpet(struct acpi_table_header *table)
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{
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struct acpi_table_hpet *hpet_tbl = (struct acpi_table_hpet *)table;
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if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) {
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printk(KERN_WARNING PREFIX "HPET timers must be located in "
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"memory.\n");
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return -1;
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}
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hpet_address = hpet_tbl->address.address;
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hpet_blockid = hpet_tbl->sequence;
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/*
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* Some broken BIOSes advertise HPET at 0x0. We really do not
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* want to allocate a resource there.
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*/
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if (!hpet_address) {
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printk(KERN_WARNING PREFIX
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"HPET id: %#x base: %#lx is invalid\n",
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hpet_tbl->id, hpet_address);
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return 0;
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}
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#ifdef CONFIG_X86_64
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/*
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* Some even more broken BIOSes advertise HPET at
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* 0xfed0000000000000 instead of 0xfed00000. Fix it up and add
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* some noise:
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*/
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if (hpet_address == 0xfed0000000000000UL) {
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if (!hpet_force_user) {
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printk(KERN_WARNING PREFIX "HPET id: %#x "
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"base: 0xfed0000000000000 is bogus\n "
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"try hpet=force on the kernel command line to "
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"fix it up to 0xfed00000.\n", hpet_tbl->id);
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hpet_address = 0;
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return 0;
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}
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printk(KERN_WARNING PREFIX
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"HPET id: %#x base: 0xfed0000000000000 fixed up "
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"to 0xfed00000.\n", hpet_tbl->id);
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hpet_address >>= 32;
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}
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#endif
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printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
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hpet_tbl->id, hpet_address);
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/*
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* Allocate and initialize the HPET firmware resource for adding into
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* the resource tree during the lateinit timeframe.
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*/
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#define HPET_RESOURCE_NAME_SIZE 9
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hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE);
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hpet_res->name = (void *)&hpet_res[1];
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hpet_res->flags = IORESOURCE_MEM;
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snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, "HPET %u",
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hpet_tbl->sequence);
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hpet_res->start = hpet_address;
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hpet_res->end = hpet_address + (1 * 1024) - 1;
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return 0;
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}
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/*
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* hpet_insert_resource inserts the HPET resources used into the resource
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* tree.
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*/
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static __init int hpet_insert_resource(void)
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{
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if (!hpet_res)
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return 1;
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return insert_resource(&iomem_resource, hpet_res);
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}
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late_initcall(hpet_insert_resource);
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#else
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#define acpi_parse_hpet NULL
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#endif
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static int __init acpi_parse_fadt(struct acpi_table_header *table)
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{
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#ifdef CONFIG_X86_PM_TIMER
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/* detect the location of the ACPI PM Timer */
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if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) {
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/* FADT rev. 2 */
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if (acpi_gbl_FADT.xpm_timer_block.space_id !=
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ACPI_ADR_SPACE_SYSTEM_IO)
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return 0;
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pmtmr_ioport = acpi_gbl_FADT.xpm_timer_block.address;
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/*
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* "X" fields are optional extensions to the original V1.0
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* fields, so we must selectively expand V1.0 fields if the
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* corresponding X field is zero.
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*/
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if (!pmtmr_ioport)
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pmtmr_ioport = acpi_gbl_FADT.pm_timer_block;
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} else {
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/* FADT rev. 1 */
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pmtmr_ioport = acpi_gbl_FADT.pm_timer_block;
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}
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if (pmtmr_ioport)
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printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n",
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pmtmr_ioport);
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#endif
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return 0;
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}
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#ifdef CONFIG_X86_IO_APIC
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#else
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static inline int acpi_parse_madt_ioapic_entries(void)
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{
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return -1;
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}
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#endif /* !CONFIG_X86_IO_APIC */
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static void __init early_acpi_process_madt(void)
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{
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#ifdef CONFIG_X86_LOCAL_APIC
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int error;
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if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
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/*
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* Parse MADT LAPIC entries
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*/
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error = early_acpi_parse_madt_lapic_addr_ovr();
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if (!error) {
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acpi_lapic = 1;
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smp_found_config = 1;
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}
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if (error == -EINVAL) {
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/*
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* Dell Precision Workstation 410, 610 come here.
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*/
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printk(KERN_ERR PREFIX
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"Invalid BIOS MADT, disabling ACPI\n");
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disable_acpi();
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}
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}
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#endif
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}
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static void __init acpi_process_madt(void)
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{
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#ifdef CONFIG_X86_LOCAL_APIC
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int error;
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if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
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/*
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* Parse MADT LAPIC entries
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*/
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error = acpi_parse_madt_lapic_entries();
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if (!error) {
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acpi_lapic = 1;
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/*
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* Parse MADT IO-APIC entries
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*/
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mutex_lock(&acpi_ioapic_lock);
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error = acpi_parse_madt_ioapic_entries();
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mutex_unlock(&acpi_ioapic_lock);
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if (!error) {
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acpi_set_irq_model_ioapic();
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smp_found_config = 1;
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}
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}
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if (error == -EINVAL) {
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/*
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* Dell Precision Workstation 410, 610 come here.
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*/
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printk(KERN_ERR PREFIX
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"Invalid BIOS MADT, disabling ACPI\n");
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disable_acpi();
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}
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} else {
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/*
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* ACPI found no MADT, and so ACPI wants UP PIC mode.
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* In the event an MPS table was found, forget it.
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* Boot with "acpi=off" to use MPS on such a system.
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*/
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if (smp_found_config) {
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printk(KERN_WARNING PREFIX
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"No APIC-table, disabling MPS\n");
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smp_found_config = 0;
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}
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}
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/*
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* ACPI supports both logical (e.g. Hyper-Threading) and physical
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* processors, where MPS only supports physical.
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*/
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if (acpi_lapic && acpi_ioapic)
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printk(KERN_INFO "Using ACPI (MADT) for SMP configuration "
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"information\n");
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else if (acpi_lapic)
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printk(KERN_INFO "Using ACPI for processor (LAPIC) "
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"configuration information\n");
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#endif
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return;
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}
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static int __init disable_acpi_irq(const struct dmi_system_id *d)
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{
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if (!acpi_force) {
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printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n",
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d->ident);
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acpi_noirq_set();
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}
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return 0;
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}
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static int __init disable_acpi_pci(const struct dmi_system_id *d)
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{
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if (!acpi_force) {
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printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n",
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d->ident);
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acpi_disable_pci();
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}
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return 0;
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}
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static int __init dmi_disable_acpi(const struct dmi_system_id *d)
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{
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if (!acpi_force) {
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printk(KERN_NOTICE "%s detected: acpi off\n", d->ident);
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disable_acpi();
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} else {
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printk(KERN_NOTICE
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"Warning: DMI blacklist says broken, but acpi forced\n");
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}
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return 0;
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}
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/*
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* Force ignoring BIOS IRQ0 override
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*/
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static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
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{
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if (!acpi_skip_timer_override) {
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pr_notice("%s detected: Ignoring BIOS IRQ0 override\n",
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d->ident);
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acpi_skip_timer_override = 1;
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}
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return 0;
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}
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/*
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* If your system is blacklisted here, but you find that acpi=force
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* works for you, please contact linux-acpi@vger.kernel.org
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*/
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static struct dmi_system_id __initdata acpi_dmi_table[] = {
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/*
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* Boxes that need ACPI disabled
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*/
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{
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.callback = dmi_disable_acpi,
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.ident = "IBM Thinkpad",
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.matches = {
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DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
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DMI_MATCH(DMI_BOARD_NAME, "2629H1G"),
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},
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},
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/*
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* Boxes that need ACPI PCI IRQ routing disabled
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*/
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{
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.callback = disable_acpi_irq,
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.ident = "ASUS A7V",
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.matches = {
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DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"),
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DMI_MATCH(DMI_BOARD_NAME, "<A7V>"),
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/* newer BIOS, Revision 1011, does work */
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DMI_MATCH(DMI_BIOS_VERSION,
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"ASUS A7V ACPI BIOS Revision 1007"),
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},
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},
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{
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/*
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* Latest BIOS for IBM 600E (1.16) has bad pcinum
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* for LPC bridge, which is needed for the PCI
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* interrupt links to work. DSDT fix is in bug 5966.
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* 2645, 2646 model numbers are shared with 600/600E/600X
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*/
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.callback = disable_acpi_irq,
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.ident = "IBM Thinkpad 600 Series 2645",
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.matches = {
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DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
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DMI_MATCH(DMI_BOARD_NAME, "2645"),
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},
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},
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{
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.callback = disable_acpi_irq,
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.ident = "IBM Thinkpad 600 Series 2646",
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.matches = {
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DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
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DMI_MATCH(DMI_BOARD_NAME, "2646"),
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},
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},
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/*
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* Boxes that need ACPI PCI IRQ routing and PCI scan disabled
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*/
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{ /* _BBN 0 bug */
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.callback = disable_acpi_pci,
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.ident = "ASUS PR-DLS",
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.matches = {
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DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
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DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"),
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DMI_MATCH(DMI_BIOS_VERSION,
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"ASUS PR-DLS ACPI BIOS Revision 1010"),
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DMI_MATCH(DMI_BIOS_DATE, "03/21/2003")
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},
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},
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{
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.callback = disable_acpi_pci,
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.ident = "Acer TravelMate 36x Laptop",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
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DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
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},
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},
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{}
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};
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/* second table for DMI checks that should run after early-quirks */
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static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
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/*
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* HP laptops which use a DSDT reporting as HP/SB400/10000,
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* which includes some code which overrides all temperature
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* trip points to 16C if the INTIN2 input of the I/O APIC
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* is enabled. This input is incorrectly designated the
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* ISA IRQ 0 via an interrupt source override even though
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* it is wired to the output of the master 8259A and INTIN0
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* is not connected at all. Force ignoring BIOS IRQ0
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* override in that cases.
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*/
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{
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.callback = dmi_ignore_irq0_timer_override,
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.ident = "HP nx6115 laptop",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
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DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6115"),
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},
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},
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{
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.callback = dmi_ignore_irq0_timer_override,
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.ident = "HP NX6125 laptop",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
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DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6125"),
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},
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},
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{
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.callback = dmi_ignore_irq0_timer_override,
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.ident = "HP NX6325 laptop",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
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DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"),
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},
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},
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{
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.callback = dmi_ignore_irq0_timer_override,
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.ident = "HP 6715b laptop",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
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DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"),
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},
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},
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{
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.callback = dmi_ignore_irq0_timer_override,
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.ident = "FUJITSU SIEMENS",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
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DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
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},
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},
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{}
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};
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/*
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* acpi_boot_table_init() and acpi_boot_init()
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* called from setup_arch(), always.
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* 1. checksums all tables
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* 2. enumerates lapics
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* 3. enumerates io-apics
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*
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* acpi_table_init() is separate to allow reading SRAT without
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* other side effects.
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|
*
|
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* side effects of acpi_boot_init:
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* acpi_lapic = 1 if LAPIC found
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|
* acpi_ioapic = 1 if IOAPIC found
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* if (acpi_lapic && acpi_ioapic) smp_found_config = 1;
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* if acpi_blacklisted() acpi_disabled = 1;
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* acpi_irq_model=...
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|
* ...
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|
*/
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|
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|
void __init acpi_boot_table_init(void)
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|
{
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|
dmi_check_system(acpi_dmi_table);
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|
|
|
/*
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|
* If acpi_disabled, bail out
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|
*/
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|
if (acpi_disabled)
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|
return;
|
|
|
|
/*
|
|
* Initialize the ACPI boot-time table parser.
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|
*/
|
|
if (acpi_table_init()) {
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|
disable_acpi();
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|
return;
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|
}
|
|
|
|
acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf);
|
|
|
|
/*
|
|
* blacklist may disable ACPI entirely
|
|
*/
|
|
if (acpi_blacklisted()) {
|
|
if (acpi_force) {
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|
printk(KERN_WARNING PREFIX "acpi=force override\n");
|
|
} else {
|
|
printk(KERN_WARNING PREFIX "Disabling ACPI support\n");
|
|
disable_acpi();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
int __init early_acpi_boot_init(void)
|
|
{
|
|
/*
|
|
* If acpi_disabled, bail out
|
|
*/
|
|
if (acpi_disabled)
|
|
return 1;
|
|
|
|
/*
|
|
* Process the Multiple APIC Description Table (MADT), if present
|
|
*/
|
|
early_acpi_process_madt();
|
|
|
|
/*
|
|
* Hardware-reduced ACPI mode initialization:
|
|
*/
|
|
// acpi_reduced_hw_init();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int __init acpi_boot_init(void)
|
|
{
|
|
/* those are executed after early-quirks are executed */
|
|
dmi_check_system(acpi_dmi_table_late);
|
|
|
|
/*
|
|
* If acpi_disabled, bail out
|
|
*/
|
|
if (acpi_disabled)
|
|
return 1;
|
|
|
|
// acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf);
|
|
|
|
/*
|
|
* set sci_int and PM timer address
|
|
*/
|
|
acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt);
|
|
|
|
/*
|
|
* Process the Multiple APIC Description Table (MADT), if present
|
|
*/
|
|
acpi_process_madt();
|
|
|
|
acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet);
|
|
|
|
// if (!acpi_noirq)
|
|
// x86_init.pci.init = pci_acpi_init;
|
|
|
|
return 0;
|
|
}
|