2 * Copyright 2015 Advanced Micro Devices, Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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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
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19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
27 #include "amd_shared.h"
28 #include <linux/module.h>
29 #include <linux/moduleparam.h>
30 #include "amdgpu_pm.h"
31 #include <drm/amdgpu_drm.h>
32 #include "amdgpu_powerplay.h"
37 static int amdgpu_create_pp_handle(struct amdgpu_device *adev)
39 struct amd_pp_init pp_init;
40 struct amd_powerplay *amd_pp;
43 amd_pp = &(adev->powerplay);
44 pp_init.chip_family = adev->family;
45 pp_init.chip_id = adev->asic_type;
46 pp_init.pm_en = (amdgpu_dpm != 0 && !amdgpu_sriov_vf(adev)) ? true : false;
47 pp_init.feature_mask = amdgpu_pp_feature_mask;
48 pp_init.device = amdgpu_cgs_create_device(adev);
49 ret = amd_powerplay_create(&pp_init, &(amd_pp->pp_handle));
55 static int amdgpu_pp_early_init(void *handle)
57 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
58 struct amd_powerplay *amd_pp;
61 amd_pp = &(adev->powerplay);
62 adev->pp_enabled = false;
63 amd_pp->pp_handle = (void *)adev;
65 switch (adev->asic_type) {
76 adev->pp_enabled = true;
77 if (amdgpu_create_pp_handle(adev))
79 amd_pp->ip_funcs = &pp_ip_funcs;
80 amd_pp->pp_funcs = &pp_dpm_funcs;
82 /* These chips don't have powerplay implemenations */
83 #ifdef CONFIG_DRM_AMDGPU_SI
89 amd_pp->ip_funcs = &si_dpm_ip_funcs;
92 #ifdef CONFIG_DRM_AMDGPU_CIK
95 amd_pp->ip_funcs = &ci_dpm_ip_funcs;
100 amd_pp->ip_funcs = &kv_dpm_ip_funcs;
108 if (adev->powerplay.ip_funcs->early_init)
109 ret = adev->powerplay.ip_funcs->early_init(
110 adev->powerplay.pp_handle);
112 if (ret == PP_DPM_DISABLED) {
113 adev->pm.dpm_enabled = false;
120 static int amdgpu_pp_late_init(void *handle)
123 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
125 if (adev->powerplay.ip_funcs->late_init)
126 ret = adev->powerplay.ip_funcs->late_init(
127 adev->powerplay.pp_handle);
129 if (adev->pp_enabled && adev->pm.dpm_enabled) {
130 amdgpu_pm_sysfs_init(adev);
131 amdgpu_dpm_dispatch_task(adev, AMD_PP_EVENT_COMPLETE_INIT, NULL, NULL);
137 static int amdgpu_pp_sw_init(void *handle)
140 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
142 if (adev->powerplay.ip_funcs->sw_init)
143 ret = adev->powerplay.ip_funcs->sw_init(
144 adev->powerplay.pp_handle);
149 static int amdgpu_pp_sw_fini(void *handle)
152 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
154 if (adev->powerplay.ip_funcs->sw_fini)
155 ret = adev->powerplay.ip_funcs->sw_fini(
156 adev->powerplay.pp_handle);
163 static int amdgpu_pp_hw_init(void *handle)
166 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
168 if (adev->pp_enabled && adev->firmware.load_type == AMDGPU_FW_LOAD_SMU)
169 amdgpu_ucode_init_bo(adev);
171 if (adev->powerplay.ip_funcs->hw_init)
172 ret = adev->powerplay.ip_funcs->hw_init(
173 adev->powerplay.pp_handle);
175 if (ret == PP_DPM_DISABLED) {
176 adev->pm.dpm_enabled = false;
180 if ((amdgpu_dpm != 0) && !amdgpu_sriov_vf(adev))
181 adev->pm.dpm_enabled = true;
186 static int amdgpu_pp_hw_fini(void *handle)
189 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
191 if (adev->pp_enabled && adev->pm.dpm_enabled)
192 amdgpu_pm_sysfs_fini(adev);
194 if (adev->powerplay.ip_funcs->hw_fini)
195 ret = adev->powerplay.ip_funcs->hw_fini(
196 adev->powerplay.pp_handle);
198 if (adev->pp_enabled && adev->firmware.load_type == AMDGPU_FW_LOAD_SMU)
199 amdgpu_ucode_fini_bo(adev);
204 static void amdgpu_pp_late_fini(void *handle)
206 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
208 if (adev->powerplay.ip_funcs->late_fini)
209 adev->powerplay.ip_funcs->late_fini(
210 adev->powerplay.pp_handle);
213 if (adev->pp_enabled)
214 amd_powerplay_destroy(adev->powerplay.pp_handle);
217 static int amdgpu_pp_suspend(void *handle)
220 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
222 if (adev->powerplay.ip_funcs->suspend)
223 ret = adev->powerplay.ip_funcs->suspend(
224 adev->powerplay.pp_handle);
228 static int amdgpu_pp_resume(void *handle)
231 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
233 if (adev->powerplay.ip_funcs->resume)
234 ret = adev->powerplay.ip_funcs->resume(
235 adev->powerplay.pp_handle);
239 static int amdgpu_pp_set_clockgating_state(void *handle,
240 enum amd_clockgating_state state)
243 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
245 if (adev->powerplay.ip_funcs->set_clockgating_state)
246 ret = adev->powerplay.ip_funcs->set_clockgating_state(
247 adev->powerplay.pp_handle, state);
251 static int amdgpu_pp_set_powergating_state(void *handle,
252 enum amd_powergating_state state)
255 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
257 if (adev->powerplay.ip_funcs->set_powergating_state)
258 ret = adev->powerplay.ip_funcs->set_powergating_state(
259 adev->powerplay.pp_handle, state);
264 static bool amdgpu_pp_is_idle(void *handle)
267 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
269 if (adev->powerplay.ip_funcs->is_idle)
270 ret = adev->powerplay.ip_funcs->is_idle(
271 adev->powerplay.pp_handle);
275 static int amdgpu_pp_wait_for_idle(void *handle)
278 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
280 if (adev->powerplay.ip_funcs->wait_for_idle)
281 ret = adev->powerplay.ip_funcs->wait_for_idle(
282 adev->powerplay.pp_handle);
286 static int amdgpu_pp_soft_reset(void *handle)
289 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
291 if (adev->powerplay.ip_funcs->soft_reset)
292 ret = adev->powerplay.ip_funcs->soft_reset(
293 adev->powerplay.pp_handle);
297 static const struct amd_ip_funcs amdgpu_pp_ip_funcs = {
298 .name = "amdgpu_powerplay",
299 .early_init = amdgpu_pp_early_init,
300 .late_init = amdgpu_pp_late_init,
301 .sw_init = amdgpu_pp_sw_init,
302 .sw_fini = amdgpu_pp_sw_fini,
303 .hw_init = amdgpu_pp_hw_init,
304 .hw_fini = amdgpu_pp_hw_fini,
305 .late_fini = amdgpu_pp_late_fini,
306 .suspend = amdgpu_pp_suspend,
307 .resume = amdgpu_pp_resume,
308 .is_idle = amdgpu_pp_is_idle,
309 .wait_for_idle = amdgpu_pp_wait_for_idle,
310 .soft_reset = amdgpu_pp_soft_reset,
311 .set_clockgating_state = amdgpu_pp_set_clockgating_state,
312 .set_powergating_state = amdgpu_pp_set_powergating_state,
315 const struct amdgpu_ip_block_version amdgpu_pp_ip_block =
317 .type = AMD_IP_BLOCK_TYPE_SMC,
321 .funcs = &amdgpu_pp_ip_funcs,