patch-2.4.22 linux-2.4.22/drivers/acpi/ospm/processor/pr.c
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- Lines: 498
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.21/drivers/acpi/ospm/processor/pr.c
- Orig date:
2001-10-24 14:06:22.000000000 -0700
diff -urN linux-2.4.21/drivers/acpi/ospm/processor/pr.c linux-2.4.22/drivers/acpi/ospm/processor/pr.c
@@ -1,497 +0,0 @@
-/*****************************************************************************
- *
- * Module Name: pr.c
- * $Revision: 34 $
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000, 2001 Andrew Grover
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-
-#include <acpi.h>
-#include <bm.h>
-#include "pr.h"
-
-
-#define _COMPONENT ACPI_PROCESSOR
- MODULE_NAME ("pr")
-
-
-/****************************************************************************
- * Globals
- ****************************************************************************/
-
-extern fadt_descriptor_rev2 acpi_fadt;
-
-
-/****************************************************************************
- * Internal Functions
- ****************************************************************************/
-
-/****************************************************************************
- *
- * FUNCTION: pr_print
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION: Prints out information on a specific thermal zone.
- *
- ****************************************************************************/
-
-void
-pr_print (
- PR_CONTEXT *processor)
-{
-#ifdef ACPI_DEBUG
- acpi_buffer buffer;
-
- FUNCTION_TRACE("pr_print");
-
- buffer.length = 256;
- buffer.pointer = acpi_os_callocate(buffer.length);
- if (!buffer.pointer) {
- return;
- }
-
- /*
- * Get the full pathname for this ACPI object.
- */
- acpi_get_name(processor->acpi_handle, ACPI_FULL_PATHNAME, &buffer);
-
- /*
- * Print out basic processor information.
- */
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "+------------------------------------------------------------\n"));
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "| Processor[%02x]:[%p] uid[%02x] %s\n", processor->device_handle, processor->acpi_handle, processor->uid, (char*)buffer.pointer));
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "| power: %cC0 %cC1 %cC2[%d] %cC3[%d]\n", (processor->power.state[0].is_valid?'+':'-'), (processor->power.state[1].is_valid?'+':'-'), (processor->power.state[2].is_valid?'+':'-'), processor->power.state[2].latency, (processor->power.state[3].is_valid?'+':'-'), processor->power.state[3].latency));
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "| performance: states[%d]\n", processor->performance.state_count));
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "+------------------------------------------------------------\n"));
-
- acpi_os_free(buffer.pointer);
-#endif /* ACPI_DEBUG */
-
- return;
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: pr_add_device
- *
- * PARAMETERS: <none>
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-pr_add_device(
- BM_HANDLE device_handle,
- void **context)
-{
- acpi_status status = AE_OK;
- PR_CONTEXT *processor = NULL;
- BM_DEVICE *device = NULL;
- acpi_buffer buffer;
- acpi_object acpi_object;
- static u32 processor_count = 0;
-
-
- FUNCTION_TRACE("pr_add_device");
-
- if (!context || *context) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = bm_get_device_info(device_handle, &device);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- processor = acpi_os_callocate(sizeof(PR_CONTEXT));
- if (!processor) {
- return AE_NO_MEMORY;
- }
-
- processor->device_handle = device->handle;
- processor->acpi_handle = device->acpi_handle;
-
- /*
- * Processor Block:
- * ----------------
- */
- memset(&acpi_object, 0, sizeof(acpi_object));
-
- buffer.length = sizeof(acpi_object);
- buffer.pointer = &acpi_object;
-
- status = acpi_evaluate_object(processor->acpi_handle, NULL, NULL, &buffer);
- if (ACPI_FAILURE(status)) {
- goto end;
- }
-
- /*
- * Processor ID:
- * -------------
- * TBD: We need to synchronize the processor ID values in ACPI
- * with those of the APIC. For example, an IBM T20 has a
- * proc_id value of '1', where the Linux value for the
- * first CPU on this system is '0'. Since x86 CPUs are
- * mapped 1:1 we can simply use a zero-based counter. Note
- * that this assumes that processor objects are enumerated
- * in the proper order.
- */
- /* processor->uid = acpi_object.processor.proc_id; */
- processor->uid = processor_count++;
-
- processor->pblk.length = acpi_object.processor.pblk_length;
- processor->pblk.address = acpi_object.processor.pblk_address;
-
- status = pr_power_add_device(processor);
- if (ACPI_FAILURE(status)) {
- goto end;
- }
-
- status = pr_perf_add_device(processor);
- if (ACPI_FAILURE(status)) {
- goto end;
- }
-
- status = pr_osl_add_device(processor);
- if (ACPI_FAILURE(status)) {
- goto end;
- }
-
- *context = processor;
-
- pr_print(processor);
-
-end:
- if (ACPI_FAILURE(status)) {
- acpi_os_free(processor);
- }
-
- return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: pr_remove_device
- *
- * PARAMETERS: <none>
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-pr_remove_device (
- void **context)
-{
- acpi_status status = AE_OK;
- PR_CONTEXT *processor= NULL;
-
- FUNCTION_TRACE("pr_remove_device");
-
- if (!context || !*context) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- processor = (PR_CONTEXT*)(*context);
-
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Removing processor device [%02x].\n", processor->device_handle));
-
- pr_osl_remove_device(processor);
-
- pr_perf_remove_device(processor);
-
- pr_power_remove_device(processor);
-
- acpi_os_free(processor);
-
- return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- * External Functions
- ****************************************************************************/
-
-/****************************************************************************
- *
- * FUNCTION: pr_initialize
- *
- * PARAMETERS: <none>
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-pr_initialize (void)
-{
- acpi_status status = AE_OK;
- BM_DEVICE_ID criteria;
- BM_DRIVER driver;
-
- FUNCTION_TRACE("pr_initialize");
-
- memset(&criteria, 0, sizeof(BM_DEVICE_ID));
- memset(&driver, 0, sizeof(BM_DRIVER));
-
- /*
- * Initialize power (Cx state) policy.
- */
- status = pr_power_initialize();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Register driver for processor devices.
- */
- criteria.type = BM_TYPE_PROCESSOR;
-
- driver.notify = &pr_notify;
- driver.request = &pr_request;
-
- status = bm_register_driver(&criteria, &driver);
-
- return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: pr_terminate
- *
- * PARAMETERS: <none>
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-pr_terminate (void)
-{
- acpi_status status = AE_OK;
- BM_DEVICE_ID criteria;
- BM_DRIVER driver;
-
- FUNCTION_TRACE("pr_terminate");
-
- memset(&criteria, 0, sizeof(BM_DEVICE_ID));
- memset(&driver, 0, sizeof(BM_DRIVER));
-
- /*
- * Terminate power (Cx state) policy.
- */
- status = pr_power_terminate();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Unegister driver for processor devices.
- */
- criteria.type = BM_TYPE_PROCESSOR;
-
- driver.notify = &pr_notify;
- driver.request = &pr_request;
-
- status = bm_unregister_driver(&criteria, &driver);
-
- return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: pr_notify
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-pr_notify (
- BM_NOTIFY notify_type,
- BM_HANDLE device_handle,
- void **context)
-{
- acpi_status status = AE_OK;
- PR_CONTEXT *processor = NULL;
-
- FUNCTION_TRACE("pr_notify");
-
- processor = (PR_CONTEXT*)*context;
-
- switch (notify_type) {
-
- case BM_NOTIFY_DEVICE_ADDED:
- status = pr_add_device(device_handle, context);
- break;
-
- case BM_NOTIFY_DEVICE_REMOVED:
- status = pr_remove_device(context);
- break;
-
- case PR_NOTIFY_PERF_STATES:
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Performance states change event detected on processor [%02x].\n", device_handle));
- /* TBD: Streamline (this is simple but overkill). */
- status = pr_perf_remove_device(processor);
- if (ACPI_SUCCESS(status)) {
- status = pr_perf_add_device(processor);
- }
- if (ACPI_SUCCESS(status)) {
- status = pr_osl_generate_event(notify_type,
- (processor));
- }
- break;
-
- case PR_NOTIFY_POWER_STATES:
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Power states change event detected on processor [%02x].\n", device_handle));
- /* TBD: Streamline (this is simple but overkill). */
- status = pr_power_remove_device(processor);
- if (ACPI_SUCCESS(status)) {
- status = pr_power_add_device(processor);
- }
- if (ACPI_SUCCESS(status)) {
- status = pr_osl_generate_event(notify_type,
- (processor));
- }
- break;
-
- default:
- status = AE_SUPPORT;
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: pr_request
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ****************************************************************************/
-
-acpi_status
-pr_request (
- BM_REQUEST *request,
- void *context)
-{
- acpi_status status = AE_OK;
- PR_CONTEXT *processor = NULL;
-
- FUNCTION_TRACE("pr_request");
-
- /*
- * Must have a valid request structure and context.
- */
- if (!request || !context) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- processor = (PR_CONTEXT*)context;
-
- /*
- * Handle request:
- * ---------------
- */
- switch (request->command) {
-
- case PR_COMMAND_GET_POWER_INFO:
- status = bm_copy_to_buffer(&(request->buffer),
- &(processor->power), sizeof(PR_POWER));
- break;
-
- case PR_COMMAND_SET_POWER_INFO:
- {
- PR_POWER *power_info = NULL;
- u32 i = 0;
-
- status = bm_cast_buffer(&(request->buffer),
- (void**)&power_info, sizeof(PR_POWER));
- if (ACPI_SUCCESS(status)) {
- for (i=0; i<processor->power.state_count; i++) {
- MEMCPY(&(processor->power.state[i].promotion),
- &(power_info->state[i].promotion),
- sizeof(PR_CX_POLICY_VALUES));
- MEMCPY(&(processor->power.state[i].demotion),
- &(power_info->state[i].demotion),
- sizeof(PR_CX_POLICY_VALUES));
- }
- }
- }
- break;
-
- case PR_COMMAND_GET_PERF_INFO:
- status = bm_copy_to_buffer(&(request->buffer),
- &(processor->performance), sizeof(PR_PERFORMANCE));
- break;
-
- case PR_COMMAND_GET_PERF_STATE:
- status = bm_copy_to_buffer(&(request->buffer),
- &(processor->performance.active_state), sizeof(u32));
- break;
-
- case PR_COMMAND_SET_PERF_LIMIT:
- {
- u32 *limit = NULL;
-
- status = bm_cast_buffer(&(request->buffer),
- (void**)&limit, sizeof(u32));
- if (ACPI_SUCCESS(status)) {
- status = pr_perf_set_limit(processor, *limit);
- }
- }
- break;
-
- default:
- status = AE_SUPPORT;
- break;
- }
-
- request->status = status;
-
- return_ACPI_STATUS(status);
-}
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