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 "iceland_smumgr.h"
29 MODULE_FIRMWARE("radeon/topaz_smc.bin");
31 static void iceland_dpm_set_funcs(struct amdgpu_device
*adev
);
33 static int iceland_dpm_early_init(struct amdgpu_device
*adev
)
35 iceland_dpm_set_funcs(adev
);
40 static int iceland_dpm_init_microcode(struct amdgpu_device
*adev
)
42 char fw_name
[30] = "radeon/topaz_smc.bin";
45 err
= request_firmware(&adev
->pm
.fw
, fw_name
, adev
->dev
);
48 err
= amdgpu_ucode_validate(adev
->pm
.fw
);
52 DRM_ERROR("Failed to load firmware \"%s\"", fw_name
);
53 release_firmware(adev
->pm
.fw
);
59 static int iceland_dpm_sw_init(struct amdgpu_device
*adev
)
63 ret
= iceland_dpm_init_microcode(adev
);
70 static int iceland_dpm_sw_fini(struct amdgpu_device
*adev
)
75 static int iceland_dpm_hw_init(struct amdgpu_device
*adev
)
79 mutex_lock(&adev
->pm
.mutex
);
81 ret
= iceland_smu_init(adev
);
83 DRM_ERROR("SMU initialization failed\n");
87 ret
= iceland_smu_start(adev
);
89 DRM_ERROR("SMU start failed\n");
93 mutex_unlock(&adev
->pm
.mutex
);
97 adev
->firmware
.smu_load
= false;
98 mutex_unlock(&adev
->pm
.mutex
);
102 static int iceland_dpm_hw_fini(struct amdgpu_device
*adev
)
104 mutex_lock(&adev
->pm
.mutex
);
105 iceland_smu_fini(adev
);
106 mutex_unlock(&adev
->pm
.mutex
);
110 static int iceland_dpm_suspend(struct amdgpu_device
*adev
)
112 iceland_dpm_hw_fini(adev
);
117 static int iceland_dpm_resume(struct amdgpu_device
*adev
)
119 iceland_dpm_hw_init(adev
);
124 static int iceland_dpm_set_clockgating_state(struct amdgpu_device
*adev
,
125 enum amdgpu_clockgating_state state
)
130 static int iceland_dpm_set_powergating_state(struct amdgpu_device
*adev
,
131 enum amdgpu_powergating_state state
)
136 const struct amdgpu_ip_funcs iceland_dpm_ip_funcs
= {
137 .early_init
= iceland_dpm_early_init
,
139 .sw_init
= iceland_dpm_sw_init
,
140 .sw_fini
= iceland_dpm_sw_fini
,
141 .hw_init
= iceland_dpm_hw_init
,
142 .hw_fini
= iceland_dpm_hw_fini
,
143 .suspend
= iceland_dpm_suspend
,
144 .resume
= iceland_dpm_resume
,
146 .wait_for_idle
= NULL
,
148 .print_status
= NULL
,
149 .set_clockgating_state
= iceland_dpm_set_clockgating_state
,
150 .set_powergating_state
= iceland_dpm_set_powergating_state
,
153 static const struct amdgpu_dpm_funcs iceland_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
,
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
,
168 static void iceland_dpm_set_funcs(struct amdgpu_device
*adev
)
170 if (NULL
== adev
->pm
.funcs
)
171 adev
->pm
.funcs
= &iceland_dpm_funcs
;