patch-2.4.22 linux-2.4.22/drivers/acpi/ospm/processor/pr.c

• 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);
-}