| 0,0 → 1,145 |
|---|
| /* |
| * acpi_bus.c - ACPI Bus Driver ($Revision: 80 $) |
| * |
| * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> |
| * |
| * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or (at |
| * your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/ioport.h> |
| #include <linux/kernel.h> |
| #include <linux/list.h> |
| #include <linux/acpi.h> |
| #include <linux/pci.h> |
| #include <linux/dmi.h> |
| |
| #include "internal.h" |
| struct acpi_device *acpi_root; |
| #ifdef CONFIG_X86 |
| #ifdef CONFIG_ACPI_CUSTOM_DSDT |
| static inline int set_copy_dsdt(const struct dmi_system_id *id) |
| { |
| return 0; |
| } |
| #else |
| static int set_copy_dsdt(const struct dmi_system_id *id) |
| { |
| printk(KERN_NOTICE "%s detected - " |
| "force copy of DSDT to local memory\n", id->ident); |
| acpi_gbl_copy_dsdt_locally = 1; |
| return 0; |
| } |
| #endif |
| |
| static struct dmi_system_id dsdt_dmi_table[] __initdata = { |
| /* |
| * Invoke DSDT corruption work-around on all Toshiba Satellite. |
| * https://bugzilla.kernel.org/show_bug.cgi?id=14679 |
| */ |
| { |
| .callback = set_copy_dsdt, |
| .ident = "TOSHIBA Satellite", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
| }, |
| }, |
| {} |
| }; |
| #else |
| static struct dmi_system_id dsdt_dmi_table[] __initdata = { |
| {} |
| }; |
| #endif |
| /** |
| * acpi_early_init - Initialize ACPICA and populate the ACPI namespace. |
| * |
| * The ACPI tables are accessible after this, but the handling of events has not |
| * been initialized and the global lock is not available yet, so AML should not |
| * be executed at this point. |
| * |
| * Doing this before switching the EFI runtime services to virtual mode allows |
| * the EfiBootServices memory to be freed slightly earlier on boot. |
| */ |
| void __init acpi_early_init(void) |
| { |
| acpi_status status; |
| |
| if (acpi_disabled) |
| return; |
| |
| printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION); |
| |
| /* It's safe to verify table checksums during late stage */ |
| acpi_gbl_verify_table_checksum = TRUE; |
| |
| /* enable workarounds, unless strict ACPI spec. compliance */ |
| if (!acpi_strict) |
| acpi_gbl_enable_interpreter_slack = TRUE; |
| |
| acpi_gbl_permanent_mmap = 1; |
| |
| /* |
| * If the machine falls into the DMI check table, |
| * DSDT will be copied to memory |
| */ |
| dmi_check_system(dsdt_dmi_table); |
| |
| status = acpi_reallocate_root_table(); |
| if (ACPI_FAILURE(status)) { |
| printk(KERN_ERR PREFIX |
| "Unable to reallocate ACPI tables\n"); |
| goto error0; |
| } |
| |
| status = acpi_initialize_subsystem(); |
| if (ACPI_FAILURE(status)) { |
| printk(KERN_ERR PREFIX |
| "Unable to initialize the ACPI Interpreter\n"); |
| goto error0; |
| } |
| |
| status = acpi_load_tables(); |
| if (ACPI_FAILURE(status)) { |
| printk(KERN_ERR PREFIX |
| "Unable to load the System Description Tables\n"); |
| goto error0; |
| } |
| |
| #ifdef CONFIG_X86 |
| if (!acpi_ioapic) { |
| /* compatible (0) means level (3) */ |
| if (!(acpi_sci_flags & ACPI_MADT_TRIGGER_MASK)) { |
| acpi_sci_flags &= ~ACPI_MADT_TRIGGER_MASK; |
| acpi_sci_flags |= ACPI_MADT_TRIGGER_LEVEL; |
| } |
| /* Set PIC-mode SCI trigger type */ |
| acpi_pic_sci_set_trigger(acpi_gbl_FADT.sci_interrupt, |
| (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2); |
| } else { |
| /* |
| * now that acpi_gbl_FADT is initialized, |
| * update it with result from INT_SRC_OVR parsing |
| */ |
| acpi_gbl_FADT.sci_interrupt = acpi_sci_override_gsi; |
| } |
| #endif |
| return; |
| |
| error0: |
| disable_acpi(); |
| } |