[deliverable/linux.git] / drivers / gpu / drm / amd / amdgpu / tonga_dpm.c

/*
 * Copyright 2014 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 <linux/firmware.h>
#include "drmP.h"
#include "amdgpu.h"
#include "tonga_smumgr.h"

MODULE_FIRMWARE("radeon/tonga_smc.bin");

static void tonga_dpm_set_funcs(struct amdgpu_device *adev);

static int tonga_dpm_early_init(struct amdgpu_device *adev)
{
	tonga_dpm_set_funcs(adev);

	return 0;
}

static int tonga_dpm_init_microcode(struct amdgpu_device *adev)
{
	char fw_name[30] = "radeon/tonga_smc.bin";
	int err;

	err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
	if (err)
		goto out;
	err = amdgpu_ucode_validate(adev->pm.fw);

out:
	if (err) {
		DRM_ERROR("Failed to load firmware \"%s\"", fw_name);
		release_firmware(adev->pm.fw);
		adev->pm.fw = NULL;
	}
	return err;
}

static int tonga_dpm_sw_init(struct amdgpu_device *adev)
{
	int ret;

	ret = tonga_dpm_init_microcode(adev);
	if (ret)
		return ret;

	return 0;
}

static int tonga_dpm_sw_fini(struct amdgpu_device *adev)
{
	return 0;
}

static int tonga_dpm_hw_init(struct amdgpu_device *adev)
{
	int ret;

	mutex_lock(&adev->pm.mutex);

	ret = tonga_smu_init(adev);
	if (ret) {
		DRM_ERROR("SMU initialization failed\n");
		goto fail;
	}

	ret = tonga_smu_start(adev);
	if (ret) {
		DRM_ERROR("SMU start failed\n");
		goto fail;
	}

	mutex_unlock(&adev->pm.mutex);
	return 0;

fail:
	adev->firmware.smu_load = false;
	mutex_unlock(&adev->pm.mutex);
	return -EINVAL;
}

static int tonga_dpm_hw_fini(struct amdgpu_device *adev)
{
	mutex_lock(&adev->pm.mutex);
	tonga_smu_fini(adev);
	mutex_unlock(&adev->pm.mutex);
	return 0;
}

static int tonga_dpm_suspend(struct amdgpu_device *adev)
{
	tonga_dpm_hw_fini(adev);

	return 0;
}

static int tonga_dpm_resume(struct amdgpu_device *adev)
{
	tonga_dpm_hw_init(adev);

	return 0;
}

static int tonga_dpm_set_clockgating_state(struct amdgpu_device *adev,
			enum amdgpu_clockgating_state state)
{
	return 0;
}

static int tonga_dpm_set_powergating_state(struct amdgpu_device *adev,
			enum amdgpu_powergating_state state)
{
	return 0;
}

const struct amdgpu_ip_funcs tonga_dpm_ip_funcs = {
	.early_init = tonga_dpm_early_init,
	.late_init = NULL,
	.sw_init = tonga_dpm_sw_init,
	.sw_fini = tonga_dpm_sw_fini,
	.hw_init = tonga_dpm_hw_init,
	.hw_fini = tonga_dpm_hw_fini,
	.suspend = tonga_dpm_suspend,
	.resume = tonga_dpm_resume,
	.is_idle = NULL,
	.wait_for_idle = NULL,
	.soft_reset = NULL,
	.print_status = NULL,
	.set_clockgating_state = tonga_dpm_set_clockgating_state,
	.set_powergating_state = tonga_dpm_set_powergating_state,
};

static const struct amdgpu_dpm_funcs tonga_dpm_funcs = {
	.get_temperature = NULL,
	.pre_set_power_state = NULL,
	.set_power_state = NULL,
	.post_set_power_state = NULL,
	.display_configuration_changed = NULL,
	.get_sclk = NULL,
	.get_mclk = NULL,
	.print_power_state = NULL,
	.debugfs_print_current_performance_level = NULL,
	.force_performance_level = NULL,
	.vblank_too_short = NULL,
	.powergate_uvd = NULL,
};

static void tonga_dpm_set_funcs(struct amdgpu_device *adev)
{
	if (NULL == adev->pm.funcs)
		adev->pm.funcs = &tonga_dpm_funcs;
}
Commit	Line	Data
aaa36a97 AD	1	/*
	2	* Copyright 2014 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 <linux/firmware.h>
	25	#include "drmP.h"
	26	#include "amdgpu.h"
	27	#include "tonga_smumgr.h"
	28
	29	MODULE_FIRMWARE("radeon/tonga_smc.bin");
	30
	31	static void tonga_dpm_set_funcs(struct amdgpu_device *adev);
	32
	33	static int tonga_dpm_early_init(struct amdgpu_device *adev)
	34	{
	35	tonga_dpm_set_funcs(adev);
	36
	37	return 0;
	38	}
	39
	40	static int tonga_dpm_init_microcode(struct amdgpu_device *adev)
	41	{
	42	char fw_name[30] = "radeon/tonga_smc.bin";
	43	int err;
	44
	45	err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
	46	if (err)
	47	goto out;
	48	err = amdgpu_ucode_validate(adev->pm.fw);
	49
	50	out:
	51	if (err) {
	52	DRM_ERROR("Failed to load firmware \"%s\"", fw_name);
	53	release_firmware(adev->pm.fw);
	54	adev->pm.fw = NULL;
	55	}
	56	return err;
	57	}
	58
	59	static int tonga_dpm_sw_init(struct amdgpu_device *adev)
	60	{
	61	int ret;
	62
	63	ret = tonga_dpm_init_microcode(adev);
	64	if (ret)
65	return ret;
66
67	return 0;
68	}
69
70	static int tonga_dpm_sw_fini(struct amdgpu_device *adev)
71	{
72	return 0;
73	}
74
75	static int tonga_dpm_hw_init(struct amdgpu_device *adev)
76	{
77	int ret;
78
79	mutex_lock(&adev->pm.mutex);
80
81	ret = tonga_smu_init(adev);
82	if (ret) {
83	DRM_ERROR("SMU initialization failed\n");
84	goto fail;
85	}
86
87	ret = tonga_smu_start(adev);
88	if (ret) {
89	DRM_ERROR("SMU start failed\n");
90	goto fail;
91	}
92
93	mutex_unlock(&adev->pm.mutex);
94	return 0;
95
96	fail:
97	adev->firmware.smu_load = false;
98	mutex_unlock(&adev->pm.mutex);
99	return -EINVAL;
100	}
101
102	static int tonga_dpm_hw_fini(struct amdgpu_device *adev)
103	{
104	mutex_lock(&adev->pm.mutex);
105	tonga_smu_fini(adev);
106	mutex_unlock(&adev->pm.mutex);
107	return 0;
108	}
109
110	static int tonga_dpm_suspend(struct amdgpu_device *adev)
111	{
112	tonga_dpm_hw_fini(adev);
113
114	return 0;
115	}
116
117	static int tonga_dpm_resume(struct amdgpu_device *adev)
118	{
119	tonga_dpm_hw_init(adev);
120
121	return 0;
122	}
123
124	static int tonga_dpm_set_clockgating_state(struct amdgpu_device *adev,
125	enum amdgpu_clockgating_state state)
126	{
127	return 0;
128	}
129
130	static int tonga_dpm_set_powergating_state(struct amdgpu_device *adev,
131	enum amdgpu_powergating_state state)
132	{
133	return 0;
134	}
135
136	const struct amdgpu_ip_funcs tonga_dpm_ip_funcs = {
137	.early_init = tonga_dpm_early_init,
138	.late_init = NULL,
139	.sw_init = tonga_dpm_sw_init,
140	.sw_fini = tonga_dpm_sw_fini,
141	.hw_init = tonga_dpm_hw_init,
142	.hw_fini = tonga_dpm_hw_fini,
143	.suspend = tonga_dpm_suspend,
144	.resume = tonga_dpm_resume,
145	.is_idle = NULL,
146	.wait_for_idle = NULL,
147	.soft_reset = NULL,
148	.print_status = NULL,
149	.set_clockgating_state = tonga_dpm_set_clockgating_state,
150	.set_powergating_state = tonga_dpm_set_powergating_state,
151	};
152
153	static const struct amdgpu_dpm_funcs tonga_dpm_funcs = {
154	.get_temperature = NULL,
155	.pre_set_power_state = NULL,
156	.set_power_state = NULL,
157	.post_set_power_state = NULL,
158	.display_configuration_changed = NULL,
159	.get_sclk = NULL,
160	.get_mclk = NULL,
161	.print_power_state = NULL,
162	.debugfs_print_current_performance_level = NULL,
163	.force_performance_level = NULL,
164	.vblank_too_short = NULL,
165	.powergate_uvd = NULL,
166	};
167
168	static void tonga_dpm_set_funcs(struct amdgpu_device *adev)
169	{
170	if (NULL == adev->pm.funcs)
171	adev->pm.funcs = &tonga_dpm_funcs;
172	}