xref: /linux/drivers/gpu/drm/amd/amdgpu/smu_v13_0_10.c (revision c8faf11cd192214e231626c3ee973a35d8fc33f2) 
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 
32 static 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 
41 static struct amdgpu_reset_handler *
42 smu_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 
67 static 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, AMD_PG_STATE_UNGATE);
72 	amdgpu_device_set_cg_state(adev, 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 0;
95 }
96 
97 static int
98 smu_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 
110 static int smu_v13_0_10_mode2_reset(struct amdgpu_device *adev)
111 {
112 	return amdgpu_dpm_mode2_reset(adev);
113 }
114 
115 static 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 }
131 static int
132 smu_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 
146 static 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, AMD_CG_STATE_GATE);
224 	amdgpu_device_set_pg_state(adev, AMD_PG_STATE_GATE);
225 
226 	return r;
227 }
228 
229 static int
230 smu_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(tmp_adev);
239 	if (r)
240 		goto end;
241 
242 	amdgpu_register_gpu_instance(tmp_adev);
243 
244 	/* Resume RAS */
245 	amdgpu_ras_resume(tmp_adev);
246 
247 	amdgpu_irq_gpu_reset_resume_helper(tmp_adev);
248 
249 	r = amdgpu_ib_ring_tests(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 
257 end:
258 	if (r)
259 		return -EAGAIN;
260 	else
261 		return r;
262 }
263 
264 static 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 
274 static struct amdgpu_reset_handler
275 	*smu_v13_0_10_rst_handlers[AMDGPU_RESET_MAX_HANDLERS] = {
276 		&smu_v13_0_10_mode2_handler,
277 	};
278 
279 int smu_v13_0_10_reset_init(struct amdgpu_device *adev)
280 {
281 	struct amdgpu_reset_control *reset_ctl;
282 
283 	reset_ctl = kzalloc(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 
301 int smu_v13_0_10_reset_fini(struct amdgpu_device *adev)
302 {
303 	kfree(adev->reset_cntl);
304 	adev->reset_cntl = NULL;
305 	return 0;
306 }
307