[deliverable/linux.git] / drivers / gpu / drm / radeon / trinity_smc.c

/*
 * Copyright 2012 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include "drmP.h"
#include "radeon.h"
#include "trinityd.h"
#include "trinity_dpm.h"
#include "ppsmc.h"

struct trinity_ps *trinity_get_ps(struct radeon_ps *rps);
struct trinity_power_info *trinity_get_pi(struct radeon_device *rdev);

static int trinity_notify_message_to_smu(struct radeon_device *rdev, u32 id)
{
	int i;
	u32 v = 0;

	WREG32(SMC_MESSAGE_0, id);
	for (i = 0; i < rdev->usec_timeout; i++) {
		if (RREG32(SMC_RESP_0) != 0)
			break;
		udelay(1);
	}
	v = RREG32(SMC_RESP_0);

	if (v != 1) {
		if (v == 0xFF) {
			DRM_ERROR("SMC failed to handle the message!\n");
			return -EINVAL;
		} else if (v == 0xFE) {
			DRM_ERROR("Unknown SMC message!\n");
			return -EINVAL;
		}
	}

	return 0;
}

int trinity_dpm_config(struct radeon_device *rdev, bool enable)
{
	if (enable)
		WREG32_SMC(SMU_SCRATCH0, 1);
	else
		WREG32_SMC(SMU_SCRATCH0, 0);

	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_Config);
}

int trinity_dpm_force_state(struct radeon_device *rdev, u32 n)
{
	WREG32_SMC(SMU_SCRATCH0, n);

	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState);
}

int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n)
{
	WREG32_SMC(SMU_SCRATCH0, n);

	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_N_LevelsDisabled);
}

int trinity_uvd_dpm_config(struct radeon_device *rdev)
{
	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config);
}

int trinity_dpm_no_forced_level(struct radeon_device *rdev)
{
	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel);
}

int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev,
					  bool enable)
{
	if (enable)
		return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_AllowVoltageAdjustment);
	else
		return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_RemoveVoltageAdjustment);
}

int trinity_gfx_dynamic_mgpg_config(struct radeon_device *rdev)
{
	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_PG_SIMD_Config);
}

void trinity_acquire_mutex(struct radeon_device *rdev)
{
	int i;

	WREG32(SMC_INT_REQ, 1);
	for (i = 0; i < rdev->usec_timeout; i++) {
		if ((RREG32(SMC_INT_REQ) & 0xffff) == 1)
			break;
		udelay(1);
	}
}

void trinity_release_mutex(struct radeon_device *rdev)
{
	WREG32(SMC_INT_REQ, 0);
}
Commit	Line	Data
d70229f7 AD	1	/*
	2	* Copyright 2012 Advanced Micro Devices, Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	*/
	23
	24	#include "drmP.h"
	25	#include "radeon.h"
	26	#include "trinityd.h"
	27	#include "trinity_dpm.h"
	28	#include "ppsmc.h"
	29
	30	struct trinity_ps trinity_get_ps(struct radeon_ps rps);
	31	struct trinity_power_info trinity_get_pi(struct radeon_device rdev);
	32
	33	static int trinity_notify_message_to_smu(struct radeon_device *rdev, u32 id)
	34	{
	35	int i;
	36	u32 v = 0;
	37
	38	WREG32(SMC_MESSAGE_0, id);
	39	for (i = 0; i < rdev->usec_timeout; i++) {
	40	if (RREG32(SMC_RESP_0) != 0)
	41	break;
	42	udelay(1);
	43	}
	44	v = RREG32(SMC_RESP_0);
	45
	46	if (v != 1) {
	47	if (v == 0xFF) {
	48	DRM_ERROR("SMC failed to handle the message!\n");
	49	return -EINVAL;
	50	} else if (v == 0xFE) {
	51	DRM_ERROR("Unknown SMC message!\n");
	52	return -EINVAL;
	53	}
	54	}
	55
	56	return 0;
	57	}
	58
	59	int trinity_dpm_config(struct radeon_device *rdev, bool enable)
	60	{
	61	if (enable)
	62	WREG32_SMC(SMU_SCRATCH0, 1);
	63	else
	64	WREG32_SMC(SMU_SCRATCH0, 0);
65
66	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_Config);
67	}
68
69	int trinity_dpm_force_state(struct radeon_device *rdev, u32 n)
70	{
71	WREG32_SMC(SMU_SCRATCH0, n);
72
73	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState);
74	}
75
9b5de596 AD	76	int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n)
	77	{
	78	WREG32_SMC(SMU_SCRATCH0, n);
	79
	80	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_N_LevelsDisabled);
	81	}
	82
0c4aaeae AD	83	int trinity_uvd_dpm_config(struct radeon_device *rdev)
	84	{
	85	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config);
	86	}
	87
d70229f7 AD	88	int trinity_dpm_no_forced_level(struct radeon_device *rdev)
	89	{
	90	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel);
	91	}
	92
	93	int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev,
	94	bool enable)
	95	{
	96	if (enable)
	97	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_AllowVoltageAdjustment);
	98	else
	99	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_RemoveVoltageAdjustment);
	100	}
	101
	102	int trinity_gfx_dynamic_mgpg_config(struct radeon_device *rdev)
	103	{
	104	return trinity_notify_message_to_smu(rdev, PPSMC_MSG_PG_SIMD_Config);
	105	}
	106
	107	void trinity_acquire_mutex(struct radeon_device *rdev)
	108	{
	109	int i;
	110
	111	WREG32(SMC_INT_REQ, 1);
	112	for (i = 0; i < rdev->usec_timeout; i++) {
	113	if ((RREG32(SMC_INT_REQ) & 0xffff) == 1)
	114	break;
	115	udelay(1);
	116	}
	117	}
	118
	119	void trinity_release_mutex(struct radeon_device *rdev)
	120	{
	121	WREG32(SMC_INT_REQ, 0);
	122	}