2 * Copyright 2014 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
24 #include <linux/firmware.h>
27 #include "tonga_smumgr.h"
29 MODULE_FIRMWARE("amdgpu/tonga_smc.bin");
31 static void tonga_dpm_set_funcs(struct amdgpu_device *adev);
33 static int tonga_dpm_early_init(void *handle)
35 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
37 tonga_dpm_set_funcs(adev);
42 static int tonga_dpm_init_microcode(struct amdgpu_device *adev)
44 char fw_name[30] = "amdgpu/tonga_smc.bin";
46 err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
49 err = amdgpu_ucode_validate(adev->pm.fw);
53 DRM_ERROR("Failed to load firmware \"%s\"", fw_name);
54 release_firmware(adev->pm.fw);
60 static int tonga_dpm_sw_init(void *handle)
63 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
65 ret = tonga_dpm_init_microcode(adev);
72 static int tonga_dpm_sw_fini(void *handle)
77 static int tonga_dpm_hw_init(void *handle)
80 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
82 mutex_lock(&adev->pm.mutex);
84 ret = tonga_smu_init(adev);
86 DRM_ERROR("SMU initialization failed\n");
90 ret = tonga_smu_start(adev);
92 DRM_ERROR("SMU start failed\n");
96 mutex_unlock(&adev->pm.mutex);
100 adev->firmware.smu_load = false;
101 mutex_unlock(&adev->pm.mutex);
105 static int tonga_dpm_hw_fini(void *handle)
107 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
109 mutex_lock(&adev->pm.mutex);
110 tonga_smu_fini(adev);
111 mutex_unlock(&adev->pm.mutex);
115 static int tonga_dpm_suspend(void *handle)
117 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
119 tonga_dpm_hw_fini(adev);
124 static int tonga_dpm_resume(void *handle)
126 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
128 tonga_dpm_hw_init(adev);
133 static int tonga_dpm_set_clockgating_state(void *handle,
134 enum amd_clockgating_state state)
139 static int tonga_dpm_set_powergating_state(void *handle,
140 enum amd_powergating_state state)
145 const struct amd_ip_funcs tonga_dpm_ip_funcs = {
146 .early_init = tonga_dpm_early_init,
148 .sw_init = tonga_dpm_sw_init,
149 .sw_fini = tonga_dpm_sw_fini,
150 .hw_init = tonga_dpm_hw_init,
151 .hw_fini = tonga_dpm_hw_fini,
152 .suspend = tonga_dpm_suspend,
153 .resume = tonga_dpm_resume,
155 .wait_for_idle = NULL,
157 .print_status = NULL,
158 .set_clockgating_state = tonga_dpm_set_clockgating_state,
159 .set_powergating_state = tonga_dpm_set_powergating_state,
162 static const struct amdgpu_dpm_funcs tonga_dpm_funcs = {
163 .get_temperature = NULL,
164 .pre_set_power_state = NULL,
165 .set_power_state = NULL,
166 .post_set_power_state = NULL,
167 .display_configuration_changed = NULL,
170 .print_power_state = NULL,
171 .debugfs_print_current_performance_level = NULL,
172 .force_performance_level = NULL,
173 .vblank_too_short = NULL,
174 .powergate_uvd = NULL,
177 static void tonga_dpm_set_funcs(struct amdgpu_device *adev)
179 if (NULL == adev->pm.funcs)
180 adev->pm.funcs = &tonga_dpm_funcs;