]> Git Repo - linux.git/blob - drivers/gpu/drm/amd/amdgpu/tonga_dpm.c
Merge branch 'drm-next-4.2-amdgpu' of git://people.freedesktop.org/~agd5f/linux into...
[linux.git] / drivers / gpu / drm / amd / amdgpu / tonga_dpm.c
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("amdgpu/tonga_smc.bin");
30
31 static void tonga_dpm_set_funcs(struct amdgpu_device *adev);
32
33 static int tonga_dpm_early_init(void *handle)
34 {
35         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
36
37         tonga_dpm_set_funcs(adev);
38
39         return 0;
40 }
41
42 static int tonga_dpm_init_microcode(struct amdgpu_device *adev)
43 {
44         char fw_name[30] = "amdgpu/tonga_smc.bin";
45         int err;
46         err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
47         if (err)
48                 goto out;
49         err = amdgpu_ucode_validate(adev->pm.fw);
50
51 out:
52         if (err) {
53                 DRM_ERROR("Failed to load firmware \"%s\"", fw_name);
54                 release_firmware(adev->pm.fw);
55                 adev->pm.fw = NULL;
56         }
57         return err;
58 }
59
60 static int tonga_dpm_sw_init(void *handle)
61 {
62         int ret;
63         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
64
65         ret = tonga_dpm_init_microcode(adev);
66         if (ret)
67                 return ret;
68
69         return 0;
70 }
71
72 static int tonga_dpm_sw_fini(void *handle)
73 {
74         return 0;
75 }
76
77 static int tonga_dpm_hw_init(void *handle)
78 {
79         int ret;
80         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
81
82         mutex_lock(&adev->pm.mutex);
83
84         ret = tonga_smu_init(adev);
85         if (ret) {
86                 DRM_ERROR("SMU initialization failed\n");
87                 goto fail;
88         }
89
90         ret = tonga_smu_start(adev);
91         if (ret) {
92                 DRM_ERROR("SMU start failed\n");
93                 goto fail;
94         }
95
96         mutex_unlock(&adev->pm.mutex);
97         return 0;
98
99 fail:
100         adev->firmware.smu_load = false;
101         mutex_unlock(&adev->pm.mutex);
102         return -EINVAL;
103 }
104
105 static int tonga_dpm_hw_fini(void *handle)
106 {
107         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
108
109         mutex_lock(&adev->pm.mutex);
110         tonga_smu_fini(adev);
111         mutex_unlock(&adev->pm.mutex);
112         return 0;
113 }
114
115 static int tonga_dpm_suspend(void *handle)
116 {
117         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
118
119         tonga_dpm_hw_fini(adev);
120
121         return 0;
122 }
123
124 static int tonga_dpm_resume(void *handle)
125 {
126         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
127
128         tonga_dpm_hw_init(adev);
129
130         return 0;
131 }
132
133 static int tonga_dpm_set_clockgating_state(void *handle,
134                         enum amd_clockgating_state state)
135 {
136         return 0;
137 }
138
139 static int tonga_dpm_set_powergating_state(void *handle,
140                         enum amd_powergating_state state)
141 {
142         return 0;
143 }
144
145 const struct amd_ip_funcs tonga_dpm_ip_funcs = {
146         .early_init = tonga_dpm_early_init,
147         .late_init = NULL,
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,
154         .is_idle = NULL,
155         .wait_for_idle = NULL,
156         .soft_reset = NULL,
157         .print_status = NULL,
158         .set_clockgating_state = tonga_dpm_set_clockgating_state,
159         .set_powergating_state = tonga_dpm_set_powergating_state,
160 };
161
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,
168         .get_sclk = NULL,
169         .get_mclk = 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,
175 };
176
177 static void tonga_dpm_set_funcs(struct amdgpu_device *adev)
178 {
179         if (NULL == adev->pm.funcs)
180                 adev->pm.funcs = &tonga_dpm_funcs;
181 }
This page took 0.044853 seconds and 4 git commands to generate.