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_smum.h"
29 MODULE_FIRMWARE("amdgpu/topaz_smc.bin");
31 static void iceland_dpm_set_funcs(struct amdgpu_device
*adev
);
33 static int iceland_dpm_early_init(void *handle
)
35 struct amdgpu_device
*adev
= (struct amdgpu_device
*)handle
;
37 iceland_dpm_set_funcs(adev
);
42 static int iceland_dpm_init_microcode(struct amdgpu_device
*adev
)
44 char fw_name
[30] = "amdgpu/topaz_smc.bin";
47 err
= request_firmware(&adev
->pm
.fw
, fw_name
, adev
->dev
);
50 err
= amdgpu_ucode_validate(adev
->pm
.fw
);
54 DRM_ERROR("Failed to load firmware \"%s\"", fw_name
);
55 release_firmware(adev
->pm
.fw
);
61 static int iceland_dpm_sw_init(void *handle
)
64 struct amdgpu_device
*adev
= (struct amdgpu_device
*)handle
;
66 ret
= iceland_dpm_init_microcode(adev
);
73 static int iceland_dpm_sw_fini(void *handle
)
75 struct amdgpu_device
*adev
= (struct amdgpu_device
*)handle
;
77 release_firmware(adev
->pm
.fw
);
83 static int iceland_dpm_hw_init(void *handle
)
86 struct amdgpu_device
*adev
= (struct amdgpu_device
*)handle
;
88 mutex_lock(&adev
->pm
.mutex
);
90 /* smu init only needs to be called at startup, not resume.
91 * It should be in sw_init, but requires the fw info gathered
92 * in sw_init from other IP modules.
94 ret
= iceland_smu_init(adev
);
96 DRM_ERROR("SMU initialization failed\n");
100 ret
= iceland_smu_start(adev
);
102 DRM_ERROR("SMU start failed\n");
106 mutex_unlock(&adev
->pm
.mutex
);
110 adev
->firmware
.smu_load
= false;
111 mutex_unlock(&adev
->pm
.mutex
);
115 static int iceland_dpm_hw_fini(void *handle
)
117 struct amdgpu_device
*adev
= (struct amdgpu_device
*)handle
;
119 mutex_lock(&adev
->pm
.mutex
);
120 /* smu fini only needs to be called at teardown, not suspend.
121 * It should be in sw_fini, but we put it here for symmetry
124 iceland_smu_fini(adev
);
125 mutex_unlock(&adev
->pm
.mutex
);
129 static int iceland_dpm_suspend(void *handle
)
134 static int iceland_dpm_resume(void *handle
)
137 struct amdgpu_device
*adev
= (struct amdgpu_device
*)handle
;
139 mutex_lock(&adev
->pm
.mutex
);
141 ret
= iceland_smu_start(adev
);
143 DRM_ERROR("SMU start failed\n");
148 mutex_unlock(&adev
->pm
.mutex
);
152 static int iceland_dpm_set_clockgating_state(void *handle
,
153 enum amd_clockgating_state state
)
158 static int iceland_dpm_set_powergating_state(void *handle
,
159 enum amd_powergating_state state
)
164 const struct amd_ip_funcs iceland_dpm_ip_funcs
= {
165 .name
= "iceland_dpm",
166 .early_init
= iceland_dpm_early_init
,
168 .sw_init
= iceland_dpm_sw_init
,
169 .sw_fini
= iceland_dpm_sw_fini
,
170 .hw_init
= iceland_dpm_hw_init
,
171 .hw_fini
= iceland_dpm_hw_fini
,
172 .suspend
= iceland_dpm_suspend
,
173 .resume
= iceland_dpm_resume
,
175 .wait_for_idle
= NULL
,
177 .set_clockgating_state
= iceland_dpm_set_clockgating_state
,
178 .set_powergating_state
= iceland_dpm_set_powergating_state
,
181 static const struct amdgpu_dpm_funcs iceland_dpm_funcs
= {
182 .get_temperature
= NULL
,
183 .pre_set_power_state
= NULL
,
184 .set_power_state
= NULL
,
185 .post_set_power_state
= NULL
,
186 .display_configuration_changed
= NULL
,
189 .print_power_state
= NULL
,
190 .debugfs_print_current_performance_level
= NULL
,
191 .force_performance_level
= NULL
,
192 .vblank_too_short
= NULL
,
193 .powergate_uvd
= NULL
,
196 static void iceland_dpm_set_funcs(struct amdgpu_device
*adev
)
198 if (NULL
== adev
->pm
.funcs
)
199 adev
->pm
.funcs
= &iceland_dpm_funcs
;