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drivers/acpi/bus.c
33.6 KB
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/* * 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. * |
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include <linux/module.h> #include <linux/init.h> #include <linux/ioport.h> |
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#include <linux/kernel.h> |
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#include <linux/list.h> #include <linux/sched.h> #include <linux/pm.h> #include <linux/device.h> #include <linux/proc_fs.h> |
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#include <linux/acpi.h> |
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#include <linux/slab.h> |
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#include <linux/regulator/machine.h> |
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#include <linux/workqueue.h> #include <linux/reboot.h> #include <linux/delay.h> |
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#ifdef CONFIG_X86 #include <asm/mpspec.h> #endif |
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#include <linux/acpi_iort.h> |
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#include <linux/pci.h> |
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#include <acpi/apei.h> |
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#include <linux/dmi.h> |
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#include <linux/suspend.h> |
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|
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#include "internal.h" |
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#define _COMPONENT ACPI_BUS_COMPONENT |
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ACPI_MODULE_NAME("bus"); |
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|
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struct acpi_device *acpi_root; struct proc_dir_entry *acpi_root_dir; |
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EXPORT_SYMBOL(acpi_root_dir); |
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#ifdef CONFIG_X86 |
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#ifdef CONFIG_ACPI_CUSTOM_DSDT static inline int set_copy_dsdt(const struct dmi_system_id *id) { return 0; } #else |
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static int set_copy_dsdt(const struct dmi_system_id *id) { printk(KERN_NOTICE "%s detected - " "force copy of DSDT to local memory ", id->ident); acpi_gbl_copy_dsdt_locally = 1; return 0; } |
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#endif |
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static int set_gbl_term_list(const struct dmi_system_id *id) { acpi_gbl_parse_table_as_term_list = 1; return 0; } |
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|
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static const struct dmi_system_id acpi_quirks_dmi_table[] __initconst = { /* * Touchpad on Dell XPS 9570/Precision M5530 doesn't work under I2C * mode. * https://bugzilla.kernel.org/show_bug.cgi?id=198515 */ { .callback = set_gbl_term_list, .ident = "Dell Precision M5530", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "Precision M5530"), }, }, { .callback = set_gbl_term_list, .ident = "Dell XPS 15 9570", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "XPS 15 9570"), }, }, |
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/* |
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* Invoke DSDT corruption work-around on all Toshiba Satellite. |
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* DSDT will be copied to memory. |
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* https://bugzilla.kernel.org/show_bug.cgi?id=14679 */ { .callback = set_copy_dsdt, |
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.ident = "TOSHIBA Satellite", |
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.matches = { DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
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}, |
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}, {} |
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}; |
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#else |
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static const struct dmi_system_id acpi_quirks_dmi_table[] __initconst = { |
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{} }; #endif |
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|
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/* -------------------------------------------------------------------------- Device Management -------------------------------------------------------------------------- */ |
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acpi_status acpi_bus_get_status_handle(acpi_handle handle, unsigned long long *sta) |
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{ |
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acpi_status status; |
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|
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status = acpi_evaluate_integer(handle, "_STA", NULL, sta); if (ACPI_SUCCESS(status)) return AE_OK; |
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|
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if (status == AE_NOT_FOUND) { *sta = ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING; return AE_OK; |
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} |
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return status; } |
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|
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int acpi_bus_get_status(struct acpi_device *device) { acpi_status status; unsigned long long sta; |
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if (acpi_device_always_present(device)) { acpi_set_device_status(device, ACPI_STA_DEFAULT); return 0; } |
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/* Battery devices must have their deps met before calling _STA */ if (acpi_device_is_battery(device) && device->dep_unmet) { acpi_set_device_status(device, 0); return 0; } |
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status = acpi_bus_get_status_handle(device->handle, &sta); if (ACPI_FAILURE(status)) return -ENODEV; |
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acpi_set_device_status(device, sta); |
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if (device->status.functional && !device->status.present) { |
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]: " "functional but not present; ", |
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device->pnp.bus_id, (u32)sta)); |
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} |
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x] ", |
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device->pnp.bus_id, (u32)sta)); |
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return 0; |
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} |
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EXPORT_SYMBOL(acpi_bus_get_status); |
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|
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void acpi_bus_private_data_handler(acpi_handle handle, |
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void *context) |
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{ return; } EXPORT_SYMBOL(acpi_bus_private_data_handler); |
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int acpi_bus_attach_private_data(acpi_handle handle, void *data) { acpi_status status; status = acpi_attach_data(handle, acpi_bus_private_data_handler, data); if (ACPI_FAILURE(status)) { acpi_handle_debug(handle, "Error attaching device data "); return -ENODEV; } return 0; } EXPORT_SYMBOL_GPL(acpi_bus_attach_private_data); |
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int acpi_bus_get_private_data(acpi_handle handle, void **data) { |
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acpi_status status; |
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if (!*data) return -EINVAL; status = acpi_get_data(handle, acpi_bus_private_data_handler, data); |
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if (ACPI_FAILURE(status)) { acpi_handle_debug(handle, "No context for object "); |
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return -ENODEV; } return 0; } |
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EXPORT_SYMBOL_GPL(acpi_bus_get_private_data); void acpi_bus_detach_private_data(acpi_handle handle) { acpi_detach_data(handle, acpi_bus_private_data_handler); } EXPORT_SYMBOL_GPL(acpi_bus_detach_private_data); |
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|
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static void acpi_print_osc_error(acpi_handle handle, |
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struct acpi_osc_context *context, char *error) |
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{ |
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int i; |
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acpi_handle_debug(handle, "(%s): %s ", context->uuid_str, error); pr_debug("_OSC request data:"); |
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for (i = 0; i < context->cap.length; i += sizeof(u32)) |
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pr_debug(" %x", *((u32 *)(context->cap.pointer + i))); pr_debug(" "); |
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} |
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acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) { acpi_status status; struct acpi_object_list input; union acpi_object in_params[4]; union acpi_object *out_obj; |
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guid_t guid; |
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u32 errors; |
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struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; |
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if (!context) return AE_ERROR; |
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if (guid_parse(context->uuid_str, &guid)) |
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return AE_ERROR; context->ret.length = ACPI_ALLOCATE_BUFFER; context->ret.pointer = NULL; /* Setting up input parameters */ input.count = 4; input.pointer = in_params; in_params[0].type = ACPI_TYPE_BUFFER; in_params[0].buffer.length = 16; |
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in_params[0].buffer.pointer = (u8 *)&guid; |
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in_params[1].type = ACPI_TYPE_INTEGER; in_params[1].integer.value = context->rev; in_params[2].type = ACPI_TYPE_INTEGER; in_params[2].integer.value = context->cap.length/sizeof(u32); in_params[3].type = ACPI_TYPE_BUFFER; in_params[3].buffer.length = context->cap.length; in_params[3].buffer.pointer = context->cap.pointer; |
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status = acpi_evaluate_object(handle, "_OSC", &input, &output); |
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if (ACPI_FAILURE(status)) return status; |
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if (!output.length) |
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return AE_NULL_OBJECT; |
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out_obj = output.pointer; if (out_obj->type != ACPI_TYPE_BUFFER || out_obj->buffer.length != context->cap.length) { |
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acpi_print_osc_error(handle, context, "_OSC evaluation returned wrong type"); status = AE_TYPE; goto out_kfree; } /* Need to ignore the bit0 in result code */ errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0); if (errors) { if (errors & OSC_REQUEST_ERROR) acpi_print_osc_error(handle, context, "_OSC request failed"); if (errors & OSC_INVALID_UUID_ERROR) acpi_print_osc_error(handle, context, "_OSC invalid UUID"); if (errors & OSC_INVALID_REVISION_ERROR) acpi_print_osc_error(handle, context, "_OSC invalid revision"); if (errors & OSC_CAPABILITIES_MASK_ERROR) { |
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if (((u32 *)context->cap.pointer)[OSC_QUERY_DWORD] |
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& OSC_QUERY_ENABLE) goto out_success; status = AE_SUPPORT; goto out_kfree; } status = AE_ERROR; goto out_kfree; } out_success: |
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context->ret.length = out_obj->buffer.length; |
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context->ret.pointer = kmemdup(out_obj->buffer.pointer, context->ret.length, GFP_KERNEL); |
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if (!context->ret.pointer) { status = AE_NO_MEMORY; goto out_kfree; } |
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status = AE_OK; |
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out_kfree: |
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kfree(output.pointer); if (status != AE_OK) context->ret.pointer = NULL; |
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return status; } EXPORT_SYMBOL(acpi_run_osc); |
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bool osc_sb_apei_support_acked; |
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/* * ACPI 6.0 Section 8.4.4.2 Idle State Coordination * OSPM supports platform coordinated low power idle(LPI) states */ bool osc_pc_lpi_support_confirmed; EXPORT_SYMBOL_GPL(osc_pc_lpi_support_confirmed); |
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static u8 sb_uuid_str[] = "0811B06E-4A27-44F9-8D60-3CBBC22E7B48"; static void acpi_bus_osc_support(void) { u32 capbuf[2]; struct acpi_osc_context context = { .uuid_str = sb_uuid_str, .rev = 1, .cap.length = 8, .cap.pointer = capbuf, }; acpi_handle handle; |
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capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE; capbuf[OSC_SUPPORT_DWORD] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */ |
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if (IS_ENABLED(CONFIG_ACPI_PROCESSOR_AGGREGATOR)) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT; if (IS_ENABLED(CONFIG_ACPI_PROCESSOR)) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT; |
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|
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capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT; |
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capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT; |
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#ifdef CONFIG_X86 if (boot_cpu_has(X86_FEATURE_HWP)) { capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPC_SUPPORT; capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPCV2_SUPPORT; } #endif |
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if (IS_ENABLED(CONFIG_SCHED_MC_PRIO)) |
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capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPC_DIVERSE_HIGH_SUPPORT; |
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if (!ghes_disable) |
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capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT; |
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if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return; |
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if (ACPI_SUCCESS(acpi_run_osc(handle, &context))) { u32 *capbuf_ret = context.ret.pointer; |
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if (context.ret.length > OSC_SUPPORT_DWORD) { |
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osc_sb_apei_support_acked = |
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capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT; |
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osc_pc_lpi_support_confirmed = capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_PCLPI_SUPPORT; } |
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kfree(context.ret.pointer); |
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} /* do we need to check other returned cap? Sounds no */ |
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} |
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/* -------------------------------------------------------------------------- |
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Notification Handling -------------------------------------------------------------------------- */ |
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/** * acpi_bus_notify * --------------- * Callback for all 'system-level' device notifications (values 0x00-0x7F). */ |
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static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) |
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{ |
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struct acpi_device *adev; |
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struct acpi_driver *driver; |
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u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; |
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bool hotplug_event = false; |
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|
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switch (type) { |
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case ACPI_NOTIFY_BUS_CHECK: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_BUS_CHECK event "); |
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hotplug_event = true; |
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break; case ACPI_NOTIFY_DEVICE_CHECK: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK event "); |
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hotplug_event = true; |
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break; case ACPI_NOTIFY_DEVICE_WAKE: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_WAKE event "); |
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break; case ACPI_NOTIFY_EJECT_REQUEST: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event "); |
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hotplug_event = true; |
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break; case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK_LIGHT event "); |
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/* TBD: Exactly what does 'light' mean? */ break; case ACPI_NOTIFY_FREQUENCY_MISMATCH: |
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acpi_handle_err(handle, "Device cannot be configured due " "to a frequency mismatch "); |
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break; case ACPI_NOTIFY_BUS_MODE_MISMATCH: |
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acpi_handle_err(handle, "Device cannot be configured due " "to a bus mode mismatch "); |
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break; case ACPI_NOTIFY_POWER_FAULT: |
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acpi_handle_err(handle, "Device has suffered a power fault "); |
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break; default: |
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acpi_handle_debug(handle, "Unknown event type 0x%x ", type); break; |
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} |
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adev = acpi_bus_get_acpi_device(handle); if (!adev) goto err; |
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|
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driver = adev->driver; if (driver && driver->ops.notify && (driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS)) driver->ops.notify(adev, type); |
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437 438 439 440 441 442 |
if (!hotplug_event) { acpi_bus_put_acpi_device(adev); return; } if (ACPI_SUCCESS(acpi_hotplug_schedule(adev, type))) |
d0103387b ACPI / notify: Cl... |
443 |
return; |
1a699476e ACPI / hotplug / ... |
444 |
acpi_bus_put_acpi_device(adev); |
1a699476e ACPI / hotplug / ... |
445 446 |
err: |
700b8422f ACPI: Drop acpi_e... |
447 |
acpi_evaluate_ost(handle, type, ost_code, NULL); |
1da177e4c Linux-2.6.12-rc2 |
448 |
} |
5894b0c46 ACPI / scan: Move... |
449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 |
static void acpi_device_notify(acpi_handle handle, u32 event, void *data) { struct acpi_device *device = data; device->driver->ops.notify(device, event); } static void acpi_device_notify_fixed(void *data) { struct acpi_device *device = data; /* Fixed hardware devices have no handles */ acpi_device_notify(NULL, ACPI_FIXED_HARDWARE_EVENT, device); } static u32 acpi_device_fixed_event(void *data) { acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_device_notify_fixed, data); return ACPI_INTERRUPT_HANDLED; } static int acpi_device_install_notify_handler(struct acpi_device *device) { acpi_status status; if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) status = acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, acpi_device_fixed_event, device); else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) status = acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, acpi_device_fixed_event, device); else status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, acpi_device_notify, device); if (ACPI_FAILURE(status)) return -EINVAL; return 0; } static void acpi_device_remove_notify_handler(struct acpi_device *device) { if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, acpi_device_fixed_event); else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, acpi_device_fixed_event); else acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, acpi_device_notify); } |
baa0c019b ACPI / bus: Suppo... |
507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 |
/* Handle events targeting \_SB device (at present only graceful shutdown) */ #define ACPI_SB_NOTIFY_SHUTDOWN_REQUEST 0x81 #define ACPI_SB_INDICATE_INTERVAL 10000 static void sb_notify_work(struct work_struct *dummy) { acpi_handle sb_handle; orderly_poweroff(true); /* * After initiating graceful shutdown, the ACPI spec requires OSPM * to evaluate _OST method once every 10seconds to indicate that * the shutdown is in progress */ acpi_get_handle(NULL, "\\_SB", &sb_handle); while (1) { pr_info("Graceful shutdown in progress. "); acpi_evaluate_ost(sb_handle, ACPI_OST_EC_OSPM_SHUTDOWN, ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS, NULL); msleep(ACPI_SB_INDICATE_INTERVAL); } } static void acpi_sb_notify(acpi_handle handle, u32 event, void *data) { static DECLARE_WORK(acpi_sb_work, sb_notify_work); if (event == ACPI_SB_NOTIFY_SHUTDOWN_REQUEST) { if (!work_busy(&acpi_sb_work)) schedule_work(&acpi_sb_work); } else pr_warn("event %x is not supported by \\_SB device ", event); } static int __init acpi_setup_sb_notify_handler(void) { acpi_handle sb_handle; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &sb_handle))) return -ENXIO; if (ACPI_FAILURE(acpi_install_notify_handler(sb_handle, ACPI_DEVICE_NOTIFY, acpi_sb_notify, NULL))) return -EINVAL; return 0; } |
1da177e4c Linux-2.6.12-rc2 |
558 |
/* -------------------------------------------------------------------------- |
68c6b148d ACPI / scan: Move... |
559 560 |
Device Matching -------------------------------------------------------------------------- */ |
3b95bd160 ACPI: introduce a... |
561 562 563 564 565 566 567 |
/** * acpi_get_first_physical_node - Get first physical node of an ACPI device * @adev: ACPI device in question * * Return: First physical node of ACPI device @adev */ struct device *acpi_get_first_physical_node(struct acpi_device *adev) |
e91a398c3 ACPI / bus: Move ... |
568 569 |
{ struct mutex *physical_node_lock = &adev->physical_node_lock; |
3b95bd160 ACPI: introduce a... |
570 |
struct device *phys_dev; |
e91a398c3 ACPI / bus: Move ... |
571 572 573 |
mutex_lock(physical_node_lock); if (list_empty(&adev->physical_node_list)) { |
3b95bd160 ACPI: introduce a... |
574 |
phys_dev = NULL; |
e91a398c3 ACPI / bus: Move ... |
575 576 577 578 579 |
} else { const struct acpi_device_physical_node *node; node = list_first_entry(&adev->physical_node_list, struct acpi_device_physical_node, node); |
3b95bd160 ACPI: introduce a... |
580 581 |
phys_dev = node->dev; |
e91a398c3 ACPI / bus: Move ... |
582 583 |
} mutex_unlock(physical_node_lock); |
3b95bd160 ACPI: introduce a... |
584 585 586 587 588 589 590 591 592 |
return phys_dev; } static struct acpi_device *acpi_primary_dev_companion(struct acpi_device *adev, const struct device *dev) { const struct device *phys_dev = acpi_get_first_physical_node(adev); return phys_dev && phys_dev == dev ? adev : NULL; |
e91a398c3 ACPI / bus: Move ... |
593 |
} |
3431e490b Merge branch 'acp... |
594 595 596 597 598 599 600 601 602 603 604 605 606 607 |
/** * acpi_device_is_first_physical_node - Is given dev first physical node * @adev: ACPI companion device * @dev: Physical device to check * * Function checks if given @dev is the first physical devices attached to * the ACPI companion device. This distinction is needed in some cases * where the same companion device is shared between many physical devices. * * Note that the caller have to provide valid @adev pointer. */ bool acpi_device_is_first_physical_node(struct acpi_device *adev, const struct device *dev) { |
e91a398c3 ACPI / bus: Move ... |
608 |
return !!acpi_primary_dev_companion(adev, dev); |
3431e490b Merge branch 'acp... |
609 |
} |
68c6b148d ACPI / scan: Move... |
610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 |
/* * acpi_companion_match() - Can we match via ACPI companion device * @dev: Device in question * * Check if the given device has an ACPI companion and if that companion has * a valid list of PNP IDs, and if the device is the first (primary) physical * device associated with it. Return the companion pointer if that's the case * or NULL otherwise. * * If multiple physical devices are attached to a single ACPI companion, we need * to be careful. The usage scenario for this kind of relationship is that all * of the physical devices in question use resources provided by the ACPI * companion. A typical case is an MFD device where all the sub-devices share * the parent's ACPI companion. In such cases we can only allow the primary * (first) physical device to be matched with the help of the companion's PNP * IDs. * * Additional physical devices sharing the ACPI companion can still use * resources available from it but they will be matched normally using functions * provided by their bus types (and analogously for their modalias). */ struct acpi_device *acpi_companion_match(const struct device *dev) { struct acpi_device *adev; |
68c6b148d ACPI / scan: Move... |
634 635 636 637 638 639 640 |
adev = ACPI_COMPANION(dev); if (!adev) return NULL; if (list_empty(&adev->pnp.ids)) return NULL; |
e91a398c3 ACPI / bus: Move ... |
641 |
return acpi_primary_dev_companion(adev, dev); |
68c6b148d ACPI / scan: Move... |
642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 |
} /** * acpi_of_match_device - Match device object using the "compatible" property. * @adev: ACPI device object to match. * @of_match_table: List of device IDs to match against. * * If @dev has an ACPI companion which has ACPI_DT_NAMESPACE_HID in its list of * identifiers and a _DSD object with the "compatible" property, use that * property to match against the given list of identifiers. */ static bool acpi_of_match_device(struct acpi_device *adev, const struct of_device_id *of_match_table) { const union acpi_object *of_compatible, *obj; int i, nval; if (!adev) return false; of_compatible = adev->data.of_compatible; if (!of_match_table || !of_compatible) return false; if (of_compatible->type == ACPI_TYPE_PACKAGE) { nval = of_compatible->package.count; obj = of_compatible->package.elements; } else { /* Must be ACPI_TYPE_STRING. */ nval = 1; obj = of_compatible; } /* Now we can look for the driver DT compatible strings */ for (i = 0; i < nval; i++, obj++) { const struct of_device_id *id; for (id = of_match_table; id->compatible[0]; id++) if (!strcasecmp(obj->string.pointer, id->compatible)) return true; } return false; } |
51ede5d96 ACPI / bus: Intro... |
684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 |
static bool acpi_of_modalias(struct acpi_device *adev, char *modalias, size_t len) { const union acpi_object *of_compatible; const union acpi_object *obj; const char *str, *chr; of_compatible = adev->data.of_compatible; if (!of_compatible) return false; if (of_compatible->type == ACPI_TYPE_PACKAGE) obj = of_compatible->package.elements; else /* Must be ACPI_TYPE_STRING. */ obj = of_compatible; str = obj->string.pointer; chr = strchr(str, ','); strlcpy(modalias, chr ? chr + 1 : str, len); return true; } /** * acpi_set_modalias - Set modalias using "compatible" property or supplied ID * @adev: ACPI device object to match * @default_id: ID string to use as default if no compatible string found * @modalias: Pointer to buffer that modalias value will be copied into * @len: Length of modalias buffer * * This is a counterpart of of_modalias_node() for struct acpi_device objects. * If there is a compatible string for @adev, it will be copied to @modalias * with the vendor prefix stripped; otherwise, @default_id will be used. */ void acpi_set_modalias(struct acpi_device *adev, const char *default_id, char *modalias, size_t len) { if (!acpi_of_modalias(adev, modalias, len)) strlcpy(modalias, default_id, len); } EXPORT_SYMBOL_GPL(acpi_set_modalias); |
68c6b148d ACPI / scan: Move... |
725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 |
static bool __acpi_match_device_cls(const struct acpi_device_id *id, struct acpi_hardware_id *hwid) { int i, msk, byte_shift; char buf[3]; if (!id->cls) return false; /* Apply class-code bitmask, before checking each class-code byte */ for (i = 1; i <= 3; i++) { byte_shift = 8 * (3 - i); msk = (id->cls_msk >> byte_shift) & 0xFF; if (!msk) continue; sprintf(buf, "%02x", (id->cls >> byte_shift) & msk); if (strncmp(buf, &hwid->id[(i - 1) * 2], 2)) return false; } return true; } static const struct acpi_device_id *__acpi_match_device( struct acpi_device *device, const struct acpi_device_id *ids, const struct of_device_id *of_ids) { const struct acpi_device_id *id; struct acpi_hardware_id *hwid; /* * If the device is not present, it is unnecessary to load device * driver for it. */ if (!device || !device->status.present) return NULL; list_for_each_entry(hwid, &device->pnp.ids, list) { /* First, check the ACPI/PNP IDs provided by the caller. */ for (id = ids; id->id[0] || id->cls; id++) { if (id->id[0] && !strcmp((char *) id->id, hwid->id)) return id; else if (id->cls && __acpi_match_device_cls(id, hwid)) return id; } /* * Next, check ACPI_DT_NAMESPACE_HID and try to match the * "compatible" property if found. * * The id returned by the below is not valid, but the only * caller passing non-NULL of_ids here is only interested in * whether or not the return value is NULL. */ if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id) && acpi_of_match_device(device, of_ids)) return id; } return NULL; } /** * acpi_match_device - Match a struct device against a given list of ACPI IDs * @ids: Array of struct acpi_device_id object to match against. * @dev: The device structure to match. * * Check if @dev has a valid ACPI handle and if there is a struct acpi_device * object for that handle and use that object to match against a given list of * device IDs. * * Return a pointer to the first matching ID on success or %NULL on failure. */ const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, const struct device *dev) { return __acpi_match_device(acpi_companion_match(dev), ids, NULL); } EXPORT_SYMBOL_GPL(acpi_match_device); int acpi_match_device_ids(struct acpi_device *device, const struct acpi_device_id *ids) { return __acpi_match_device(device, ids, NULL) ? 0 : -ENOENT; } EXPORT_SYMBOL(acpi_match_device_ids); bool acpi_driver_match_device(struct device *dev, const struct device_driver *drv) { if (!drv->acpi_match_table) return acpi_of_match_device(ACPI_COMPANION(dev), drv->of_match_table); return !!__acpi_match_device(acpi_companion_match(dev), drv->acpi_match_table, drv->of_match_table); } EXPORT_SYMBOL_GPL(acpi_driver_match_device); /* -------------------------------------------------------------------------- |
5894b0c46 ACPI / scan: Move... |
825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 |
ACPI Driver Management -------------------------------------------------------------------------- */ /** * acpi_bus_register_driver - register a driver with the ACPI bus * @driver: driver being registered * * Registers a driver with the ACPI bus. Searches the namespace for all * devices that match the driver's criteria and binds. Returns zero for * success or a negative error status for failure. */ int acpi_bus_register_driver(struct acpi_driver *driver) { int ret; if (acpi_disabled) return -ENODEV; driver->drv.name = driver->name; driver->drv.bus = &acpi_bus_type; driver->drv.owner = driver->owner; ret = driver_register(&driver->drv); return ret; } EXPORT_SYMBOL(acpi_bus_register_driver); /** * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus * @driver: driver to unregister * * Unregisters a driver with the ACPI bus. Searches the namespace for all * devices that match the driver's criteria and unbinds. */ void acpi_bus_unregister_driver(struct acpi_driver *driver) { driver_unregister(&driver->drv); } EXPORT_SYMBOL(acpi_bus_unregister_driver); /* -------------------------------------------------------------------------- ACPI Bus operations -------------------------------------------------------------------------- */ static int acpi_bus_match(struct device *dev, struct device_driver *drv) { struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = to_acpi_driver(drv); return acpi_dev->flags.match_driver && !acpi_match_device_ids(acpi_dev, acpi_drv->ids); } static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env) { return __acpi_device_uevent_modalias(to_acpi_device(dev), env); } static int acpi_device_probe(struct device *dev) { struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver); int ret; if (acpi_dev->handler && !acpi_is_pnp_device(acpi_dev)) return -EINVAL; if (!acpi_drv->ops.add) return -ENOSYS; ret = acpi_drv->ops.add(acpi_dev); if (ret) return ret; acpi_dev->driver = acpi_drv; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Driver [%s] successfully bound to device [%s] ", acpi_drv->name, acpi_dev->pnp.bus_id)); if (acpi_drv->ops.notify) { ret = acpi_device_install_notify_handler(acpi_dev); if (ret) { if (acpi_drv->ops.remove) acpi_drv->ops.remove(acpi_dev); acpi_dev->driver = NULL; acpi_dev->driver_data = NULL; return ret; } } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s] ", acpi_drv->name, acpi_dev->pnp.bus_id)); get_device(dev); return 0; } static int acpi_device_remove(struct device * dev) { struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = acpi_dev->driver; if (acpi_drv) { if (acpi_drv->ops.notify) acpi_device_remove_notify_handler(acpi_dev); if (acpi_drv->ops.remove) acpi_drv->ops.remove(acpi_dev); } acpi_dev->driver = NULL; acpi_dev->driver_data = NULL; put_device(dev); return 0; } struct bus_type acpi_bus_type = { .name = "acpi", .match = acpi_bus_match, .probe = acpi_device_probe, .remove = acpi_device_remove, .uevent = acpi_device_uevent, }; |
1da177e4c Linux-2.6.12-rc2 |
950 951 952 |
/* -------------------------------------------------------------------------- Initialization/Cleanup -------------------------------------------------------------------------- */ |
4be44fcd3 [ACPI] Lindent al... |
953 |
static int __init acpi_bus_init_irq(void) |
1da177e4c Linux-2.6.12-rc2 |
954 |
{ |
6a8c0af6e ACPI: Remove usel... |
955 |
acpi_status status; |
4be44fcd3 [ACPI] Lindent al... |
956 |
char *message = NULL; |
1da177e4c Linux-2.6.12-rc2 |
957 |
|
1da177e4c Linux-2.6.12-rc2 |
958 |
|
aafbcd165 ACPI: invoke acpi... |
959 |
/* |
1da177e4c Linux-2.6.12-rc2 |
960 961 962 963 964 965 966 967 968 969 970 971 972 973 |
* Let the system know what interrupt model we are using by * evaluating the \_PIC object, if exists. */ switch (acpi_irq_model) { case ACPI_IRQ_MODEL_PIC: message = "PIC"; break; case ACPI_IRQ_MODEL_IOAPIC: message = "IOAPIC"; break; case ACPI_IRQ_MODEL_IOSAPIC: message = "IOSAPIC"; break; |
fbe61ec71 ARM64 / ACPI: Int... |
974 975 976 |
case ACPI_IRQ_MODEL_GIC: message = "GIC"; break; |
3948ec940 ACPI: Altix: ACPI... |
977 978 979 |
case ACPI_IRQ_MODEL_PLATFORM: message = "platform specific model"; break; |
1da177e4c Linux-2.6.12-rc2 |
980 981 982 |
default: printk(KERN_WARNING PREFIX "Unknown interrupt routing model "); |
d550d98d3 ACPI: delete trac... |
983 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
984 985 986 987 |
} printk(KERN_INFO PREFIX "Using %s for interrupt routing ", message); |
0db982026 ACPI: introduce h... |
988 |
status = acpi_execute_simple_method(NULL, "\\_PIC", acpi_irq_model); |
1da177e4c Linux-2.6.12-rc2 |
989 |
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) { |
a6fc67202 ACPI: Enable ACPI... |
990 |
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC")); |
d550d98d3 ACPI: delete trac... |
991 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
992 |
} |
d550d98d3 ACPI: delete trac... |
993 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
994 |
} |
b064a8fa7 ACPI / init: Swit... |
995 996 997 998 999 1000 1001 1002 1003 1004 |
/** * 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. */ |
4be44fcd3 [ACPI] Lindent al... |
1005 |
void __init acpi_early_init(void) |
1da177e4c Linux-2.6.12-rc2 |
1006 |
{ |
6a8c0af6e ACPI: Remove usel... |
1007 |
acpi_status status; |
1da177e4c Linux-2.6.12-rc2 |
1008 1009 |
if (acpi_disabled) |
d550d98d3 ACPI: delete trac... |
1010 |
return; |
1da177e4c Linux-2.6.12-rc2 |
1011 |
|
61686124f [ACPI] ACPICA 200... |
1012 1013 |
printk(KERN_INFO PREFIX "Core revision %08x ", ACPI_CA_VERSION); |
1da177e4c Linux-2.6.12-rc2 |
1014 1015 1016 |
/* enable workarounds, unless strict ACPI spec. compliance */ if (!acpi_strict) acpi_gbl_enable_interpreter_slack = TRUE; |
8d3523fb3 ACPI / osl: Remov... |
1017 |
acpi_permanent_mmap = true; |
ad71860a1 ACPICA: minimal p... |
1018 |
|
b2190cc39 ACPI / bus: Parse... |
1019 1020 |
/* Check machine-specific quirks */ dmi_check_system(acpi_quirks_dmi_table); |
aa2110cb1 ACPI: add boot op... |
1021 |
|
ad71860a1 ACPICA: minimal p... |
1022 1023 1024 1025 1026 1027 1028 |
status = acpi_reallocate_root_table(); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to reallocate ACPI tables "); goto error0; } |
1da177e4c Linux-2.6.12-rc2 |
1029 1030 |
status = acpi_initialize_subsystem(); if (ACPI_FAILURE(status)) { |
4be44fcd3 [ACPI] Lindent al... |
1031 1032 1033 |
printk(KERN_ERR PREFIX "Unable to initialize the ACPI Interpreter "); |
1da177e4c Linux-2.6.12-rc2 |
1034 1035 |
goto error0; } |
1ef356681 ACPI / bus: Adjus... |
1036 1037 |
if (!acpi_gbl_parse_table_as_term_list && acpi_gbl_group_module_level_code) { |
fe6cbea0f ACPI 2.0 / ECDT: ... |
1038 1039 1040 1041 1042 1043 1044 |
status = acpi_load_tables(); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to load the System Description Tables "); goto error0; } |
1da177e4c Linux-2.6.12-rc2 |
1045 |
} |
1da177e4c Linux-2.6.12-rc2 |
1046 1047 |
#ifdef CONFIG_X86 if (!acpi_ioapic) { |
1da177e4c Linux-2.6.12-rc2 |
1048 |
/* compatible (0) means level (3) */ |
5f3b1a8b6 ACPICA: Remove du... |
1049 1050 1051 1052 |
if (!(acpi_sci_flags & ACPI_MADT_TRIGGER_MASK)) { acpi_sci_flags &= ~ACPI_MADT_TRIGGER_MASK; acpi_sci_flags |= ACPI_MADT_TRIGGER_LEVEL; } |
1da177e4c Linux-2.6.12-rc2 |
1053 |
/* Set PIC-mode SCI trigger type */ |
cee324b14 ACPICA: use new A... |
1054 |
acpi_pic_sci_set_trigger(acpi_gbl_FADT.sci_interrupt, |
5f3b1a8b6 ACPICA: Remove du... |
1055 |
(acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2); |
1da177e4c Linux-2.6.12-rc2 |
1056 |
} else { |
1da177e4c Linux-2.6.12-rc2 |
1057 |
/* |
cee324b14 ACPICA: use new A... |
1058 |
* now that acpi_gbl_FADT is initialized, |
1da177e4c Linux-2.6.12-rc2 |
1059 1060 |
* update it with result from INT_SRC_OVR parsing */ |
cee324b14 ACPICA: use new A... |
1061 |
acpi_gbl_FADT.sci_interrupt = acpi_sci_override_gsi; |
1da177e4c Linux-2.6.12-rc2 |
1062 1063 |
} #endif |
b064a8fa7 ACPI / init: Swit... |
1064 1065 1066 1067 1068 1069 1070 1071 1072 |
return; error0: disable_acpi(); } /** * acpi_subsystem_init - Finalize the early initialization of ACPI. * |
3af03f77c ACPI / bus: Corre... |
1073 |
* Switch over the platform to the ACPI mode (if possible). |
b064a8fa7 ACPI / init: Swit... |
1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 |
* * Doing this too early is generally unsafe, but at the same time it needs to be * done before all things that really depend on ACPI. The right spot appears to * be before finalizing the EFI initialization. */ void __init acpi_subsystem_init(void) { acpi_status status; if (acpi_disabled) return; |
1da177e4c Linux-2.6.12-rc2 |
1085 |
|
4505a2015 ACPI: Drop ACPI_N... |
1086 |
status = acpi_enable_subsystem(~ACPI_NO_ACPI_ENABLE); |
1da177e4c Linux-2.6.12-rc2 |
1087 1088 1089 |
if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to enable ACPI "); |
b064a8fa7 ACPI / init: Swit... |
1090 1091 1092 1093 1094 1095 1096 1097 1098 |
disable_acpi(); } else { /* * If the system is using ACPI then we can be reasonably * confident that any regulators are managed by the firmware * so tell the regulator core it has everything it needs to * know. */ regulator_has_full_constraints(); |
1da177e4c Linux-2.6.12-rc2 |
1099 |
} |
1da177e4c Linux-2.6.12-rc2 |
1100 |
} |
68bdb6773 ACPI: add support... |
1101 1102 1103 1104 1105 1106 |
static acpi_status acpi_bus_table_handler(u32 event, void *table, void *context) { acpi_scan_table_handler(event, table, context); return acpi_sysfs_table_handler(event, table, context); } |
4be44fcd3 [ACPI] Lindent al... |
1107 |
static int __init acpi_bus_init(void) |
1da177e4c Linux-2.6.12-rc2 |
1108 |
{ |
6a8c0af6e ACPI: Remove usel... |
1109 1110 |
int result; acpi_status status; |
1da177e4c Linux-2.6.12-rc2 |
1111 |
|
176f9c180 ACPI: remove doub... |
1112 |
acpi_os_initialize1(); |
1da177e4c Linux-2.6.12-rc2 |
1113 |
|
1da177e4c Linux-2.6.12-rc2 |
1114 1115 |
/* * ACPI 2.0 requires the EC driver to be loaded and work before |
fe6cbea0f ACPI 2.0 / ECDT: ... |
1116 1117 |
* the EC device is found in the namespace (i.e. before * acpi_load_tables() is called). |
1da177e4c Linux-2.6.12-rc2 |
1118 |
* |
aafbcd165 ACPI: invoke acpi... |
1119 |
* This is accomplished by looking for the ECDT table, and getting |
1da177e4c Linux-2.6.12-rc2 |
1120 1121 1122 1123 |
* the EC parameters out of that. */ status = acpi_ec_ecdt_probe(); /* Ignore result. Not having an ECDT is not fatal. */ |
1da177e4c Linux-2.6.12-rc2 |
1124 |
|
1ef356681 ACPI / bus: Adjus... |
1125 1126 |
if (acpi_gbl_parse_table_as_term_list || !acpi_gbl_group_module_level_code) { |
fe6cbea0f ACPI 2.0 / ECDT: ... |
1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 |
status = acpi_load_tables(); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to load the System Description Tables "); goto error1; } } status = acpi_enable_subsystem(ACPI_NO_ACPI_ENABLE); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to start the ACPI Interpreter "); goto error1; } |
1da177e4c Linux-2.6.12-rc2 |
1143 1144 1145 1146 1147 1148 |
status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to initialize ACPI objects "); goto error1; } |
a21211672 ACPI / processor:... |
1149 1150 |
/* Set capability bits for _OSC under processor scope */ acpi_early_processor_osc(); |
b1d248d96 ACPI: install ACP... |
1151 |
/* |
fc54ab729 ACPI: run _OSC af... |
1152 1153 1154 1155 1156 1157 |
* _OSC method may exist in module level code, * so it must be run after ACPI_FULL_INITIALIZATION */ acpi_bus_osc_support(); /* |
b1d248d96 ACPI: install ACP... |
1158 1159 1160 |
* _PDC control method may load dynamic SSDT tables, * and we need to install the table handler before that. */ |
68bdb6773 ACPI: add support... |
1161 |
status = acpi_install_table_handler(acpi_bus_table_handler, NULL); |
b1d248d96 ACPI: install ACP... |
1162 |
acpi_sysfs_init(); |
78f169965 ACPI: processor: ... |
1163 |
acpi_early_processor_set_pdc(); |
455c8793d ACPI: Enable EC d... |
1164 1165 1166 1167 |
/* * Maybe EC region is required at bus_scan/acpi_get_devices. So it * is necessary to enable it as early as possible. */ |
dcf15cbde ACPI / EC: Fix a ... |
1168 |
acpi_ec_dsdt_probe(); |
455c8793d ACPI: Enable EC d... |
1169 |
|
1da177e4c Linux-2.6.12-rc2 |
1170 1171 |
printk(KERN_INFO PREFIX "Interpreter enabled "); |
aafbcd165 ACPI: invoke acpi... |
1172 1173 |
/* Initialize sleep structures */ acpi_sleep_init(); |
1da177e4c Linux-2.6.12-rc2 |
1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 |
/* * Get the system interrupt model and evaluate \_PIC. */ result = acpi_bus_init_irq(); if (result) goto error1; /* * Register the for all standard device notifications. */ |
4be44fcd3 [ACPI] Lindent al... |
1184 1185 1186 |
status = acpi_install_notify_handler(ACPI_ROOT_OBJECT, ACPI_SYSTEM_NOTIFY, &acpi_bus_notify, NULL); |
1da177e4c Linux-2.6.12-rc2 |
1187 |
if (ACPI_FAILURE(status)) { |
4be44fcd3 [ACPI] Lindent al... |
1188 1189 1190 |
printk(KERN_ERR PREFIX "Unable to register for device notifications "); |
1da177e4c Linux-2.6.12-rc2 |
1191 1192 1193 1194 1195 1196 1197 |
goto error1; } /* * Create the top ACPI proc directory */ acpi_root_dir = proc_mkdir(ACPI_BUS_FILE_ROOT, NULL); |
1dcc3d336 ACPI / bus: Move ... |
1198 1199 1200 |
result = bus_register(&acpi_bus_type); if (!result) return 0; |
1da177e4c Linux-2.6.12-rc2 |
1201 1202 |
/* Mimic structured exception handling */ |
4be44fcd3 [ACPI] Lindent al... |
1203 |
error1: |
1da177e4c Linux-2.6.12-rc2 |
1204 |
acpi_terminate(); |
d550d98d3 ACPI: delete trac... |
1205 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
1206 |
} |
99e0d2fc6 kobject: convert ... |
1207 |
struct kobject *acpi_kobj; |
f2d4753fb ACPI: export acpi... |
1208 |
EXPORT_SYMBOL_GPL(acpi_kobj); |
1da177e4c Linux-2.6.12-rc2 |
1209 |
|
4be44fcd3 [ACPI] Lindent al... |
1210 |
static int __init acpi_init(void) |
1da177e4c Linux-2.6.12-rc2 |
1211 |
{ |
6831c6edc PM: Drop pm_flags... |
1212 |
int result; |
1da177e4c Linux-2.6.12-rc2 |
1213 |
|
1da177e4c Linux-2.6.12-rc2 |
1214 1215 1216 |
if (acpi_disabled) { printk(KERN_INFO PREFIX "Interpreter disabled. "); |
d550d98d3 ACPI: delete trac... |
1217 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
1218 |
} |
f62ed9e33 firmware: change ... |
1219 |
acpi_kobj = kobject_create_and_add("acpi", firmware_kobj); |
99e0d2fc6 kobject: convert ... |
1220 |
if (!acpi_kobj) { |
96b2dd1f1 ACPI: replace rem... |
1221 1222 |
printk(KERN_WARNING "%s: kset create error ", __func__); |
99e0d2fc6 kobject: convert ... |
1223 1224 |
acpi_kobj = NULL; } |
1da177e4c Linux-2.6.12-rc2 |
1225 |
|
0e46517d9 ACPI: call init_a... |
1226 |
init_acpi_device_notify(); |
1da177e4c Linux-2.6.12-rc2 |
1227 |
result = acpi_bus_init(); |
6831c6edc PM: Drop pm_flags... |
1228 |
if (result) { |
1da177e4c Linux-2.6.12-rc2 |
1229 |
disable_acpi(); |
81d0273df ACPI: skip DMI po... |
1230 |
return result; |
6831c6edc PM: Drop pm_flags... |
1231 |
} |
81d0273df ACPI: skip DMI po... |
1232 |
|
6831c6edc PM: Drop pm_flags... |
1233 |
pci_mmcfg_late_init(); |
88ef16d88 ACPI: I/O Remappi... |
1234 |
acpi_iort_init(); |
e747f2749 ACPI: call acpi_s... |
1235 |
acpi_scan_init(); |
a5f820feb ACPI: call acpi_e... |
1236 |
acpi_ec_init(); |
a25ee9200 ACPI: introduce d... |
1237 |
acpi_debugfs_init(); |
9cee43e07 ACPI: call acpi_s... |
1238 |
acpi_sleep_proc_init(); |
201b8c655 ACPI: call acpi_w... |
1239 |
acpi_wakeup_device_init(); |
836d08301 ACPI / debugger: ... |
1240 |
acpi_debugger_init(); |
baa0c019b ACPI / bus: Suppo... |
1241 |
acpi_setup_sb_notify_handler(); |
6831c6edc PM: Drop pm_flags... |
1242 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1243 1244 1245 |
} subsys_initcall(acpi_init); |