1/*
2 * Copyright 2023 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 "smu_v13_0_10.h"
25#include "amdgpu_reset.h"
26#include "amdgpu_dpm.h"
27#include "amdgpu_job.h"
28#include "amdgpu_ring.h"
29#include "amdgpu_ras.h"
30#include "amdgpu_psp.h"
31
32static bool smu_v13_0_10_is_mode2_default(struct amdgpu_reset_control *reset_ctl)
33{
34 struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle;
35 if (adev->pm.fw_version >= 0x00502005 && !amdgpu_sriov_vf(adev))
36 return true;
37
38 return false;
39}
40
41static struct amdgpu_reset_handler *
42smu_v13_0_10_get_reset_handler(struct amdgpu_reset_control *reset_ctl,
43 struct amdgpu_reset_context *reset_context)
44{
45 struct amdgpu_reset_handler *handler;
46 struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle;
47 int i;
48
49 if (reset_context->method != AMD_RESET_METHOD_NONE) {
50 for_each_handler(i, handler, reset_ctl) {
51 if (handler->reset_method == reset_context->method)
52 return handler;
53 }
54 }
55
56 if (smu_v13_0_10_is_mode2_default(reset_ctl) &&
57 amdgpu_asic_reset_method(adev) == AMD_RESET_METHOD_MODE2) {
58 for_each_handler(i, handler, reset_ctl) {
59 if (handler->reset_method == AMD_RESET_METHOD_MODE2)
60 return handler;
61 }
62 }
63
64 return NULL;
65}
66
67static int smu_v13_0_10_mode2_suspend_ip(struct amdgpu_device *adev)
68{
69 int r, i;
70
71 amdgpu_device_set_pg_state(adev, state: AMD_PG_STATE_UNGATE);
72 amdgpu_device_set_cg_state(adev, state: AMD_CG_STATE_UNGATE);
73
74 for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
75 if (!(adev->ip_blocks[i].version->type ==
76 AMD_IP_BLOCK_TYPE_GFX ||
77 adev->ip_blocks[i].version->type ==
78 AMD_IP_BLOCK_TYPE_SDMA ||
79 adev->ip_blocks[i].version->type ==
80 AMD_IP_BLOCK_TYPE_MES))
81 continue;
82
83 r = adev->ip_blocks[i].version->funcs->suspend(adev);
84
85 if (r) {
86 dev_err(adev->dev,
87 "suspend of IP block <%s> failed %d\n",
88 adev->ip_blocks[i].version->funcs->name, r);
89 return r;
90 }
91 adev->ip_blocks[i].status.hw = false;
92 }
93
94 return r;
95}
96
97static int
98smu_v13_0_10_mode2_prepare_hwcontext(struct amdgpu_reset_control *reset_ctl,
99 struct amdgpu_reset_context *reset_context)
100{
101 int r = 0;
102 struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle;
103
104 if (!amdgpu_sriov_vf(adev))
105 r = smu_v13_0_10_mode2_suspend_ip(adev);
106
107 return r;
108}
109
110static int smu_v13_0_10_mode2_reset(struct amdgpu_device *adev)
111{
112 return amdgpu_dpm_mode2_reset(adev);
113}
114
115static void smu_v13_0_10_async_reset(struct work_struct *work)
116{
117 struct amdgpu_reset_handler *handler;
118 struct amdgpu_reset_control *reset_ctl =
119 container_of(work, struct amdgpu_reset_control, reset_work);
120 struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle;
121 int i;
122
123 for_each_handler(i, handler, reset_ctl) {
124 if (handler->reset_method == reset_ctl->active_reset) {
125 dev_dbg(adev->dev, "Resetting device\n");
126 handler->do_reset(adev);
127 break;
128 }
129 }
130}
131static int
132smu_v13_0_10_mode2_perform_reset(struct amdgpu_reset_control *reset_ctl,
133 struct amdgpu_reset_context *reset_context)
134{
135 struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle;
136 int r;
137
138 r = smu_v13_0_10_mode2_reset(adev);
139 if (r) {
140 dev_err(adev->dev,
141 "ASIC reset failed with error, %d ", r);
142 }
143 return r;
144}
145
146static int smu_v13_0_10_mode2_restore_ip(struct amdgpu_device *adev)
147{
148 int i, r;
149 struct psp_context *psp = &adev->psp;
150 struct amdgpu_firmware_info *ucode;
151 struct amdgpu_firmware_info *ucode_list[2];
152 int ucode_count = 0;
153
154 for (i = 0; i < adev->firmware.max_ucodes; i++) {
155 ucode = &adev->firmware.ucode[i];
156
157 switch (ucode->ucode_id) {
158 case AMDGPU_UCODE_ID_IMU_I:
159 case AMDGPU_UCODE_ID_IMU_D:
160 ucode_list[ucode_count++] = ucode;
161 break;
162 default:
163 break;
164 }
165 }
166
167 r = psp_load_fw_list(psp, ucode_list, ucode_count);
168 if (r) {
169 dev_err(adev->dev, "IMU ucode load failed after mode2 reset\n");
170 return r;
171 }
172
173 r = psp_rlc_autoload_start(psp);
174 if (r) {
175 DRM_ERROR("Failed to start rlc autoload after mode2 reset\n");
176 return r;
177 }
178
179 amdgpu_dpm_enable_gfx_features(adev);
180
181 for (i = 0; i < adev->num_ip_blocks; i++) {
182 if (!(adev->ip_blocks[i].version->type ==
183 AMD_IP_BLOCK_TYPE_GFX ||
184 adev->ip_blocks[i].version->type ==
185 AMD_IP_BLOCK_TYPE_MES ||
186 adev->ip_blocks[i].version->type ==
187 AMD_IP_BLOCK_TYPE_SDMA))
188 continue;
189 r = adev->ip_blocks[i].version->funcs->resume(adev);
190 if (r) {
191 dev_err(adev->dev,
192 "resume of IP block <%s> failed %d\n",
193 adev->ip_blocks[i].version->funcs->name, r);
194 return r;
195 }
196
197 adev->ip_blocks[i].status.hw = true;
198 }
199
200 for (i = 0; i < adev->num_ip_blocks; i++) {
201 if (!(adev->ip_blocks[i].version->type ==
202 AMD_IP_BLOCK_TYPE_GFX ||
203 adev->ip_blocks[i].version->type ==
204 AMD_IP_BLOCK_TYPE_MES ||
205 adev->ip_blocks[i].version->type ==
206 AMD_IP_BLOCK_TYPE_SDMA))
207 continue;
208
209 if (adev->ip_blocks[i].version->funcs->late_init) {
210 r = adev->ip_blocks[i].version->funcs->late_init(
211 (void *)adev);
212 if (r) {
213 dev_err(adev->dev,
214 "late_init of IP block <%s> failed %d after reset\n",
215 adev->ip_blocks[i].version->funcs->name,
216 r);
217 return r;
218 }
219 }
220 adev->ip_blocks[i].status.late_initialized = true;
221 }
222
223 amdgpu_device_set_cg_state(adev, state: AMD_CG_STATE_GATE);
224 amdgpu_device_set_pg_state(adev, state: AMD_PG_STATE_GATE);
225
226 return r;
227}
228
229static int
230smu_v13_0_10_mode2_restore_hwcontext(struct amdgpu_reset_control *reset_ctl,
231 struct amdgpu_reset_context *reset_context)
232{
233 int r;
234 struct amdgpu_device *tmp_adev = (struct amdgpu_device *)reset_ctl->handle;
235
236 dev_info(tmp_adev->dev,
237 "GPU reset succeeded, trying to resume\n");
238 r = smu_v13_0_10_mode2_restore_ip(adev: tmp_adev);
239 if (r)
240 goto end;
241
242 amdgpu_register_gpu_instance(adev: tmp_adev);
243
244 /* Resume RAS */
245 amdgpu_ras_resume(adev: tmp_adev);
246
247 amdgpu_irq_gpu_reset_resume_helper(adev: tmp_adev);
248
249 r = amdgpu_ib_ring_tests(adev: tmp_adev);
250 if (r) {
251 dev_err(tmp_adev->dev,
252 "ib ring test failed (%d).\n", r);
253 r = -EAGAIN;
254 goto end;
255 }
256
257end:
258 if (r)
259 return -EAGAIN;
260 else
261 return r;
262}
263
264static struct amdgpu_reset_handler smu_v13_0_10_mode2_handler = {
265 .reset_method = AMD_RESET_METHOD_MODE2,
266 .prepare_env = NULL,
267 .prepare_hwcontext = smu_v13_0_10_mode2_prepare_hwcontext,
268 .perform_reset = smu_v13_0_10_mode2_perform_reset,
269 .restore_hwcontext = smu_v13_0_10_mode2_restore_hwcontext,
270 .restore_env = NULL,
271 .do_reset = smu_v13_0_10_mode2_reset,
272};
273
274static struct amdgpu_reset_handler
275 *smu_v13_0_10_rst_handlers[AMDGPU_RESET_MAX_HANDLERS] = {
276 &smu_v13_0_10_mode2_handler,
277 };
278
279int smu_v13_0_10_reset_init(struct amdgpu_device *adev)
280{
281 struct amdgpu_reset_control *reset_ctl;
282
283 reset_ctl = kzalloc(size: sizeof(*reset_ctl), GFP_KERNEL);
284 if (!reset_ctl)
285 return -ENOMEM;
286
287 reset_ctl->handle = adev;
288 reset_ctl->async_reset = smu_v13_0_10_async_reset;
289 reset_ctl->active_reset = AMD_RESET_METHOD_NONE;
290 reset_ctl->get_reset_handler = smu_v13_0_10_get_reset_handler;
291
292 INIT_WORK(&reset_ctl->reset_work, reset_ctl->async_reset);
293 /* Only mode2 is handled through reset control now */
294 reset_ctl->reset_handlers = &smu_v13_0_10_rst_handlers;
295
296 adev->reset_cntl = reset_ctl;
297
298 return 0;
299}
300
301int smu_v13_0_10_reset_fini(struct amdgpu_device *adev)
302{
303 kfree(objp: adev->reset_cntl);
304 adev->reset_cntl = NULL;
305 return 0;
306}
307

source code of linux/drivers/gpu/drm/amd/amdgpu/smu_v13_0_10.c