xref: /linux/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c (revision e7d759f31ca295d589f7420719c311870bb3166f)
1 /*
2  * Copyright 2016 Advanced Micro Devices, Inc.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sub license, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
16  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
17  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
18  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19  * USE OR OTHER DEALINGS IN THE SOFTWARE.
20  *
21  * The above copyright notice and this permission notice (including the
22  * next paragraph) shall be included in all copies or substantial portions
23  * of the Software.
24  *
25  */
26 
27 #include <linux/firmware.h>
28 #include <linux/module.h>
29 #include <linux/dmi.h>
30 #include <linux/pci.h>
31 #include <linux/debugfs.h>
32 #include <drm/drm_drv.h>
33 
34 #include "amdgpu.h"
35 #include "amdgpu_pm.h"
36 #include "amdgpu_vcn.h"
37 #include "soc15d.h"
38 
39 /* Firmware Names */
40 #define FIRMWARE_RAVEN			"amdgpu/raven_vcn.bin"
41 #define FIRMWARE_PICASSO		"amdgpu/picasso_vcn.bin"
42 #define FIRMWARE_RAVEN2			"amdgpu/raven2_vcn.bin"
43 #define FIRMWARE_ARCTURUS		"amdgpu/arcturus_vcn.bin"
44 #define FIRMWARE_RENOIR			"amdgpu/renoir_vcn.bin"
45 #define FIRMWARE_GREEN_SARDINE		"amdgpu/green_sardine_vcn.bin"
46 #define FIRMWARE_NAVI10			"amdgpu/navi10_vcn.bin"
47 #define FIRMWARE_NAVI14			"amdgpu/navi14_vcn.bin"
48 #define FIRMWARE_NAVI12			"amdgpu/navi12_vcn.bin"
49 #define FIRMWARE_SIENNA_CICHLID		"amdgpu/sienna_cichlid_vcn.bin"
50 #define FIRMWARE_NAVY_FLOUNDER		"amdgpu/navy_flounder_vcn.bin"
51 #define FIRMWARE_VANGOGH		"amdgpu/vangogh_vcn.bin"
52 #define FIRMWARE_DIMGREY_CAVEFISH	"amdgpu/dimgrey_cavefish_vcn.bin"
53 #define FIRMWARE_ALDEBARAN		"amdgpu/aldebaran_vcn.bin"
54 #define FIRMWARE_BEIGE_GOBY		"amdgpu/beige_goby_vcn.bin"
55 #define FIRMWARE_YELLOW_CARP		"amdgpu/yellow_carp_vcn.bin"
56 #define FIRMWARE_VCN_3_1_2		"amdgpu/vcn_3_1_2.bin"
57 #define FIRMWARE_VCN4_0_0		"amdgpu/vcn_4_0_0.bin"
58 #define FIRMWARE_VCN4_0_2		"amdgpu/vcn_4_0_2.bin"
59 #define FIRMWARE_VCN4_0_3		"amdgpu/vcn_4_0_3.bin"
60 #define FIRMWARE_VCN4_0_4		"amdgpu/vcn_4_0_4.bin"
61 #define FIRMWARE_VCN4_0_5		"amdgpu/vcn_4_0_5.bin"
62 
63 MODULE_FIRMWARE(FIRMWARE_RAVEN);
64 MODULE_FIRMWARE(FIRMWARE_PICASSO);
65 MODULE_FIRMWARE(FIRMWARE_RAVEN2);
66 MODULE_FIRMWARE(FIRMWARE_ARCTURUS);
67 MODULE_FIRMWARE(FIRMWARE_RENOIR);
68 MODULE_FIRMWARE(FIRMWARE_GREEN_SARDINE);
69 MODULE_FIRMWARE(FIRMWARE_ALDEBARAN);
70 MODULE_FIRMWARE(FIRMWARE_NAVI10);
71 MODULE_FIRMWARE(FIRMWARE_NAVI14);
72 MODULE_FIRMWARE(FIRMWARE_NAVI12);
73 MODULE_FIRMWARE(FIRMWARE_SIENNA_CICHLID);
74 MODULE_FIRMWARE(FIRMWARE_NAVY_FLOUNDER);
75 MODULE_FIRMWARE(FIRMWARE_VANGOGH);
76 MODULE_FIRMWARE(FIRMWARE_DIMGREY_CAVEFISH);
77 MODULE_FIRMWARE(FIRMWARE_BEIGE_GOBY);
78 MODULE_FIRMWARE(FIRMWARE_YELLOW_CARP);
79 MODULE_FIRMWARE(FIRMWARE_VCN_3_1_2);
80 MODULE_FIRMWARE(FIRMWARE_VCN4_0_0);
81 MODULE_FIRMWARE(FIRMWARE_VCN4_0_2);
82 MODULE_FIRMWARE(FIRMWARE_VCN4_0_3);
83 MODULE_FIRMWARE(FIRMWARE_VCN4_0_4);
84 MODULE_FIRMWARE(FIRMWARE_VCN4_0_5);
85 
86 static void amdgpu_vcn_idle_work_handler(struct work_struct *work);
87 
88 int amdgpu_vcn_early_init(struct amdgpu_device *adev)
89 {
90 	char ucode_prefix[30];
91 	char fw_name[40];
92 	int r;
93 
94 	amdgpu_ucode_ip_version_decode(adev, UVD_HWIP, ucode_prefix, sizeof(ucode_prefix));
95 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s.bin", ucode_prefix);
96 	r = amdgpu_ucode_request(adev, &adev->vcn.fw, fw_name);
97 	if (r)
98 		amdgpu_ucode_release(&adev->vcn.fw);
99 
100 	return r;
101 }
102 
103 int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
104 {
105 	unsigned long bo_size;
106 	const struct common_firmware_header *hdr;
107 	unsigned char fw_check;
108 	unsigned int fw_shared_size, log_offset;
109 	int i, r;
110 
111 	INIT_DELAYED_WORK(&adev->vcn.idle_work, amdgpu_vcn_idle_work_handler);
112 	mutex_init(&adev->vcn.vcn_pg_lock);
113 	mutex_init(&adev->vcn.vcn1_jpeg1_workaround);
114 	atomic_set(&adev->vcn.total_submission_cnt, 0);
115 	for (i = 0; i < adev->vcn.num_vcn_inst; i++)
116 		atomic_set(&adev->vcn.inst[i].dpg_enc_submission_cnt, 0);
117 
118 	if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
119 	    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
120 		adev->vcn.indirect_sram = true;
121 
122 	/*
123 	 * Some Steam Deck's BIOS versions are incompatible with the
124 	 * indirect SRAM mode, leading to amdgpu being unable to get
125 	 * properly probed (and even potentially crashing the kernel).
126 	 * Hence, check for these versions here - notice this is
127 	 * restricted to Vangogh (Deck's APU).
128 	 */
129 	if (amdgpu_ip_version(adev, UVD_HWIP, 0) == IP_VERSION(3, 0, 2)) {
130 		const char *bios_ver = dmi_get_system_info(DMI_BIOS_VERSION);
131 
132 		if (bios_ver && (!strncmp("F7A0113", bios_ver, 7) ||
133 		     !strncmp("F7A0114", bios_ver, 7))) {
134 			adev->vcn.indirect_sram = false;
135 			dev_info(adev->dev,
136 				"Steam Deck quirk: indirect SRAM disabled on BIOS %s\n", bios_ver);
137 		}
138 	}
139 
140 	hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
141 	adev->vcn.fw_version = le32_to_cpu(hdr->ucode_version);
142 
143 	/* Bit 20-23, it is encode major and non-zero for new naming convention.
144 	 * This field is part of version minor and DRM_DISABLED_FLAG in old naming
145 	 * convention. Since the l:wq!atest version minor is 0x5B and DRM_DISABLED_FLAG
146 	 * is zero in old naming convention, this field is always zero so far.
147 	 * These four bits are used to tell which naming convention is present.
148 	 */
149 	fw_check = (le32_to_cpu(hdr->ucode_version) >> 20) & 0xf;
150 	if (fw_check) {
151 		unsigned int dec_ver, enc_major, enc_minor, vep, fw_rev;
152 
153 		fw_rev = le32_to_cpu(hdr->ucode_version) & 0xfff;
154 		enc_minor = (le32_to_cpu(hdr->ucode_version) >> 12) & 0xff;
155 		enc_major = fw_check;
156 		dec_ver = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xf;
157 		vep = (le32_to_cpu(hdr->ucode_version) >> 28) & 0xf;
158 		DRM_INFO("Found VCN firmware Version ENC: %u.%u DEC: %u VEP: %u Revision: %u\n",
159 			enc_major, enc_minor, dec_ver, vep, fw_rev);
160 	} else {
161 		unsigned int version_major, version_minor, family_id;
162 
163 		family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
164 		version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
165 		version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
166 		DRM_INFO("Found VCN firmware Version: %u.%u Family ID: %u\n",
167 			version_major, version_minor, family_id);
168 	}
169 
170 	bo_size = AMDGPU_VCN_STACK_SIZE + AMDGPU_VCN_CONTEXT_SIZE;
171 	if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
172 		bo_size += AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8);
173 
174 	if (amdgpu_ip_version(adev, UVD_HWIP, 0) >= IP_VERSION(4, 0, 0)) {
175 		fw_shared_size = AMDGPU_GPU_PAGE_ALIGN(sizeof(struct amdgpu_vcn4_fw_shared));
176 		log_offset = offsetof(struct amdgpu_vcn4_fw_shared, fw_log);
177 	} else {
178 		fw_shared_size = AMDGPU_GPU_PAGE_ALIGN(sizeof(struct amdgpu_fw_shared));
179 		log_offset = offsetof(struct amdgpu_fw_shared, fw_log);
180 	}
181 
182 	bo_size += fw_shared_size;
183 
184 	if (amdgpu_vcnfw_log)
185 		bo_size += AMDGPU_VCNFW_LOG_SIZE;
186 
187 	for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
188 		if (adev->vcn.harvest_config & (1 << i))
189 			continue;
190 
191 		r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,
192 					    AMDGPU_GEM_DOMAIN_VRAM |
193 					    AMDGPU_GEM_DOMAIN_GTT,
194 					    &adev->vcn.inst[i].vcpu_bo,
195 					    &adev->vcn.inst[i].gpu_addr,
196 					    &adev->vcn.inst[i].cpu_addr);
197 		if (r) {
198 			dev_err(adev->dev, "(%d) failed to allocate vcn bo\n", r);
199 			return r;
200 		}
201 
202 		adev->vcn.inst[i].fw_shared.cpu_addr = adev->vcn.inst[i].cpu_addr +
203 				bo_size - fw_shared_size;
204 		adev->vcn.inst[i].fw_shared.gpu_addr = adev->vcn.inst[i].gpu_addr +
205 				bo_size - fw_shared_size;
206 
207 		adev->vcn.inst[i].fw_shared.mem_size = fw_shared_size;
208 
209 		if (amdgpu_vcnfw_log) {
210 			adev->vcn.inst[i].fw_shared.cpu_addr -= AMDGPU_VCNFW_LOG_SIZE;
211 			adev->vcn.inst[i].fw_shared.gpu_addr -= AMDGPU_VCNFW_LOG_SIZE;
212 			adev->vcn.inst[i].fw_shared.log_offset = log_offset;
213 		}
214 
215 		if (adev->vcn.indirect_sram) {
216 			r = amdgpu_bo_create_kernel(adev, 64 * 2 * 4, PAGE_SIZE,
217 					AMDGPU_GEM_DOMAIN_VRAM |
218 					AMDGPU_GEM_DOMAIN_GTT,
219 					&adev->vcn.inst[i].dpg_sram_bo,
220 					&adev->vcn.inst[i].dpg_sram_gpu_addr,
221 					&adev->vcn.inst[i].dpg_sram_cpu_addr);
222 			if (r) {
223 				dev_err(adev->dev, "VCN %d (%d) failed to allocate DPG bo\n", i, r);
224 				return r;
225 			}
226 		}
227 	}
228 
229 	return 0;
230 }
231 
232 int amdgpu_vcn_sw_fini(struct amdgpu_device *adev)
233 {
234 	int i, j;
235 
236 	for (j = 0; j < adev->vcn.num_vcn_inst; ++j) {
237 		if (adev->vcn.harvest_config & (1 << j))
238 			continue;
239 
240 		amdgpu_bo_free_kernel(
241 			&adev->vcn.inst[j].dpg_sram_bo,
242 			&adev->vcn.inst[j].dpg_sram_gpu_addr,
243 			(void **)&adev->vcn.inst[j].dpg_sram_cpu_addr);
244 
245 		kvfree(adev->vcn.inst[j].saved_bo);
246 
247 		amdgpu_bo_free_kernel(&adev->vcn.inst[j].vcpu_bo,
248 					  &adev->vcn.inst[j].gpu_addr,
249 					  (void **)&adev->vcn.inst[j].cpu_addr);
250 
251 		amdgpu_ring_fini(&adev->vcn.inst[j].ring_dec);
252 
253 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
254 			amdgpu_ring_fini(&adev->vcn.inst[j].ring_enc[i]);
255 	}
256 
257 	amdgpu_ucode_release(&adev->vcn.fw);
258 	mutex_destroy(&adev->vcn.vcn1_jpeg1_workaround);
259 	mutex_destroy(&adev->vcn.vcn_pg_lock);
260 
261 	return 0;
262 }
263 
264 /* from vcn4 and above, only unified queue is used */
265 static bool amdgpu_vcn_using_unified_queue(struct amdgpu_ring *ring)
266 {
267 	struct amdgpu_device *adev = ring->adev;
268 	bool ret = false;
269 
270 	if (amdgpu_ip_version(adev, UVD_HWIP, 0) >= IP_VERSION(4, 0, 0))
271 		ret = true;
272 
273 	return ret;
274 }
275 
276 bool amdgpu_vcn_is_disabled_vcn(struct amdgpu_device *adev, enum vcn_ring_type type, uint32_t vcn_instance)
277 {
278 	bool ret = false;
279 	int vcn_config = adev->vcn.vcn_config[vcn_instance];
280 
281 	if ((type == VCN_ENCODE_RING) && (vcn_config & VCN_BLOCK_ENCODE_DISABLE_MASK))
282 		ret = true;
283 	else if ((type == VCN_DECODE_RING) && (vcn_config & VCN_BLOCK_DECODE_DISABLE_MASK))
284 		ret = true;
285 	else if ((type == VCN_UNIFIED_RING) && (vcn_config & VCN_BLOCK_QUEUE_DISABLE_MASK))
286 		ret = true;
287 
288 	return ret;
289 }
290 
291 int amdgpu_vcn_suspend(struct amdgpu_device *adev)
292 {
293 	unsigned int size;
294 	void *ptr;
295 	int i, idx;
296 
297 	bool in_ras_intr = amdgpu_ras_intr_triggered();
298 
299 	cancel_delayed_work_sync(&adev->vcn.idle_work);
300 
301 	/* err_event_athub will corrupt VCPU buffer, so we need to
302 	 * restore fw data and clear buffer in amdgpu_vcn_resume() */
303 	if (in_ras_intr)
304 		return 0;
305 
306 	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
307 		if (adev->vcn.harvest_config & (1 << i))
308 			continue;
309 		if (adev->vcn.inst[i].vcpu_bo == NULL)
310 			return 0;
311 
312 		size = amdgpu_bo_size(adev->vcn.inst[i].vcpu_bo);
313 		ptr = adev->vcn.inst[i].cpu_addr;
314 
315 		adev->vcn.inst[i].saved_bo = kvmalloc(size, GFP_KERNEL);
316 		if (!adev->vcn.inst[i].saved_bo)
317 			return -ENOMEM;
318 
319 		if (drm_dev_enter(adev_to_drm(adev), &idx)) {
320 			memcpy_fromio(adev->vcn.inst[i].saved_bo, ptr, size);
321 			drm_dev_exit(idx);
322 		}
323 	}
324 	return 0;
325 }
326 
327 int amdgpu_vcn_resume(struct amdgpu_device *adev)
328 {
329 	unsigned int size;
330 	void *ptr;
331 	int i, idx;
332 
333 	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
334 		if (adev->vcn.harvest_config & (1 << i))
335 			continue;
336 		if (adev->vcn.inst[i].vcpu_bo == NULL)
337 			return -EINVAL;
338 
339 		size = amdgpu_bo_size(adev->vcn.inst[i].vcpu_bo);
340 		ptr = adev->vcn.inst[i].cpu_addr;
341 
342 		if (adev->vcn.inst[i].saved_bo != NULL) {
343 			if (drm_dev_enter(adev_to_drm(adev), &idx)) {
344 				memcpy_toio(ptr, adev->vcn.inst[i].saved_bo, size);
345 				drm_dev_exit(idx);
346 			}
347 			kvfree(adev->vcn.inst[i].saved_bo);
348 			adev->vcn.inst[i].saved_bo = NULL;
349 		} else {
350 			const struct common_firmware_header *hdr;
351 			unsigned int offset;
352 
353 			hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
354 			if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
355 				offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
356 				if (drm_dev_enter(adev_to_drm(adev), &idx)) {
357 					memcpy_toio(adev->vcn.inst[i].cpu_addr, adev->vcn.fw->data + offset,
358 						    le32_to_cpu(hdr->ucode_size_bytes));
359 					drm_dev_exit(idx);
360 				}
361 				size -= le32_to_cpu(hdr->ucode_size_bytes);
362 				ptr += le32_to_cpu(hdr->ucode_size_bytes);
363 			}
364 			memset_io(ptr, 0, size);
365 		}
366 	}
367 	return 0;
368 }
369 
370 static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
371 {
372 	struct amdgpu_device *adev =
373 		container_of(work, struct amdgpu_device, vcn.idle_work.work);
374 	unsigned int fences = 0, fence[AMDGPU_MAX_VCN_INSTANCES] = {0};
375 	unsigned int i, j;
376 	int r = 0;
377 
378 	for (j = 0; j < adev->vcn.num_vcn_inst; ++j) {
379 		if (adev->vcn.harvest_config & (1 << j))
380 			continue;
381 
382 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
383 			fence[j] += amdgpu_fence_count_emitted(&adev->vcn.inst[j].ring_enc[i]);
384 
385 		if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)	{
386 			struct dpg_pause_state new_state;
387 
388 			if (fence[j] ||
389 				unlikely(atomic_read(&adev->vcn.inst[j].dpg_enc_submission_cnt)))
390 				new_state.fw_based = VCN_DPG_STATE__PAUSE;
391 			else
392 				new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
393 
394 			adev->vcn.pause_dpg_mode(adev, j, &new_state);
395 		}
396 
397 		fence[j] += amdgpu_fence_count_emitted(&adev->vcn.inst[j].ring_dec);
398 		fences += fence[j];
399 	}
400 
401 	if (!fences && !atomic_read(&adev->vcn.total_submission_cnt)) {
402 		amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
403 		       AMD_PG_STATE_GATE);
404 		r = amdgpu_dpm_switch_power_profile(adev, PP_SMC_POWER_PROFILE_VIDEO,
405 				false);
406 		if (r)
407 			dev_warn(adev->dev, "(%d) failed to disable video power profile mode\n", r);
408 	} else {
409 		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
410 	}
411 }
412 
413 void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
414 {
415 	struct amdgpu_device *adev = ring->adev;
416 	int r = 0;
417 
418 	atomic_inc(&adev->vcn.total_submission_cnt);
419 
420 	if (!cancel_delayed_work_sync(&adev->vcn.idle_work)) {
421 		r = amdgpu_dpm_switch_power_profile(adev, PP_SMC_POWER_PROFILE_VIDEO,
422 				true);
423 		if (r)
424 			dev_warn(adev->dev, "(%d) failed to switch to video power profile mode\n", r);
425 	}
426 
427 	mutex_lock(&adev->vcn.vcn_pg_lock);
428 	amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
429 	       AMD_PG_STATE_UNGATE);
430 
431 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)	{
432 		struct dpg_pause_state new_state;
433 
434 		if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC) {
435 			atomic_inc(&adev->vcn.inst[ring->me].dpg_enc_submission_cnt);
436 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
437 		} else {
438 			unsigned int fences = 0;
439 			unsigned int i;
440 
441 			for (i = 0; i < adev->vcn.num_enc_rings; ++i)
442 				fences += amdgpu_fence_count_emitted(&adev->vcn.inst[ring->me].ring_enc[i]);
443 
444 			if (fences || atomic_read(&adev->vcn.inst[ring->me].dpg_enc_submission_cnt))
445 				new_state.fw_based = VCN_DPG_STATE__PAUSE;
446 			else
447 				new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
448 		}
449 
450 		adev->vcn.pause_dpg_mode(adev, ring->me, &new_state);
451 	}
452 	mutex_unlock(&adev->vcn.vcn_pg_lock);
453 }
454 
455 void amdgpu_vcn_ring_end_use(struct amdgpu_ring *ring)
456 {
457 	if (ring->adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG &&
458 		ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
459 		atomic_dec(&ring->adev->vcn.inst[ring->me].dpg_enc_submission_cnt);
460 
461 	atomic_dec(&ring->adev->vcn.total_submission_cnt);
462 
463 	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
464 }
465 
466 int amdgpu_vcn_dec_ring_test_ring(struct amdgpu_ring *ring)
467 {
468 	struct amdgpu_device *adev = ring->adev;
469 	uint32_t tmp = 0;
470 	unsigned int i;
471 	int r;
472 
473 	/* VCN in SRIOV does not support direct register read/write */
474 	if (amdgpu_sriov_vf(adev))
475 		return 0;
476 
477 	WREG32(adev->vcn.inst[ring->me].external.scratch9, 0xCAFEDEAD);
478 	r = amdgpu_ring_alloc(ring, 3);
479 	if (r)
480 		return r;
481 	amdgpu_ring_write(ring, PACKET0(adev->vcn.internal.scratch9, 0));
482 	amdgpu_ring_write(ring, 0xDEADBEEF);
483 	amdgpu_ring_commit(ring);
484 	for (i = 0; i < adev->usec_timeout; i++) {
485 		tmp = RREG32(adev->vcn.inst[ring->me].external.scratch9);
486 		if (tmp == 0xDEADBEEF)
487 			break;
488 		udelay(1);
489 	}
490 
491 	if (i >= adev->usec_timeout)
492 		r = -ETIMEDOUT;
493 
494 	return r;
495 }
496 
497 int amdgpu_vcn_dec_sw_ring_test_ring(struct amdgpu_ring *ring)
498 {
499 	struct amdgpu_device *adev = ring->adev;
500 	uint32_t rptr;
501 	unsigned int i;
502 	int r;
503 
504 	if (amdgpu_sriov_vf(adev))
505 		return 0;
506 
507 	r = amdgpu_ring_alloc(ring, 16);
508 	if (r)
509 		return r;
510 
511 	rptr = amdgpu_ring_get_rptr(ring);
512 
513 	amdgpu_ring_write(ring, VCN_DEC_SW_CMD_END);
514 	amdgpu_ring_commit(ring);
515 
516 	for (i = 0; i < adev->usec_timeout; i++) {
517 		if (amdgpu_ring_get_rptr(ring) != rptr)
518 			break;
519 		udelay(1);
520 	}
521 
522 	if (i >= adev->usec_timeout)
523 		r = -ETIMEDOUT;
524 
525 	return r;
526 }
527 
528 static int amdgpu_vcn_dec_send_msg(struct amdgpu_ring *ring,
529 				   struct amdgpu_ib *ib_msg,
530 				   struct dma_fence **fence)
531 {
532 	u64 addr = AMDGPU_GPU_PAGE_ALIGN(ib_msg->gpu_addr);
533 	struct amdgpu_device *adev = ring->adev;
534 	struct dma_fence *f = NULL;
535 	struct amdgpu_job *job;
536 	struct amdgpu_ib *ib;
537 	int i, r;
538 
539 	r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL,
540 				     64, AMDGPU_IB_POOL_DIRECT,
541 				     &job);
542 	if (r)
543 		goto err;
544 
545 	ib = &job->ibs[0];
546 	ib->ptr[0] = PACKET0(adev->vcn.internal.data0, 0);
547 	ib->ptr[1] = addr;
548 	ib->ptr[2] = PACKET0(adev->vcn.internal.data1, 0);
549 	ib->ptr[3] = addr >> 32;
550 	ib->ptr[4] = PACKET0(adev->vcn.internal.cmd, 0);
551 	ib->ptr[5] = 0;
552 	for (i = 6; i < 16; i += 2) {
553 		ib->ptr[i] = PACKET0(adev->vcn.internal.nop, 0);
554 		ib->ptr[i+1] = 0;
555 	}
556 	ib->length_dw = 16;
557 
558 	r = amdgpu_job_submit_direct(job, ring, &f);
559 	if (r)
560 		goto err_free;
561 
562 	amdgpu_ib_free(adev, ib_msg, f);
563 
564 	if (fence)
565 		*fence = dma_fence_get(f);
566 	dma_fence_put(f);
567 
568 	return 0;
569 
570 err_free:
571 	amdgpu_job_free(job);
572 err:
573 	amdgpu_ib_free(adev, ib_msg, f);
574 	return r;
575 }
576 
577 static int amdgpu_vcn_dec_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
578 		struct amdgpu_ib *ib)
579 {
580 	struct amdgpu_device *adev = ring->adev;
581 	uint32_t *msg;
582 	int r, i;
583 
584 	memset(ib, 0, sizeof(*ib));
585 	r = amdgpu_ib_get(adev, NULL, AMDGPU_GPU_PAGE_SIZE * 2,
586 			AMDGPU_IB_POOL_DIRECT,
587 			ib);
588 	if (r)
589 		return r;
590 
591 	msg = (uint32_t *)AMDGPU_GPU_PAGE_ALIGN((unsigned long)ib->ptr);
592 	msg[0] = cpu_to_le32(0x00000028);
593 	msg[1] = cpu_to_le32(0x00000038);
594 	msg[2] = cpu_to_le32(0x00000001);
595 	msg[3] = cpu_to_le32(0x00000000);
596 	msg[4] = cpu_to_le32(handle);
597 	msg[5] = cpu_to_le32(0x00000000);
598 	msg[6] = cpu_to_le32(0x00000001);
599 	msg[7] = cpu_to_le32(0x00000028);
600 	msg[8] = cpu_to_le32(0x00000010);
601 	msg[9] = cpu_to_le32(0x00000000);
602 	msg[10] = cpu_to_le32(0x00000007);
603 	msg[11] = cpu_to_le32(0x00000000);
604 	msg[12] = cpu_to_le32(0x00000780);
605 	msg[13] = cpu_to_le32(0x00000440);
606 	for (i = 14; i < 1024; ++i)
607 		msg[i] = cpu_to_le32(0x0);
608 
609 	return 0;
610 }
611 
612 static int amdgpu_vcn_dec_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
613 					  struct amdgpu_ib *ib)
614 {
615 	struct amdgpu_device *adev = ring->adev;
616 	uint32_t *msg;
617 	int r, i;
618 
619 	memset(ib, 0, sizeof(*ib));
620 	r = amdgpu_ib_get(adev, NULL, AMDGPU_GPU_PAGE_SIZE * 2,
621 			AMDGPU_IB_POOL_DIRECT,
622 			ib);
623 	if (r)
624 		return r;
625 
626 	msg = (uint32_t *)AMDGPU_GPU_PAGE_ALIGN((unsigned long)ib->ptr);
627 	msg[0] = cpu_to_le32(0x00000028);
628 	msg[1] = cpu_to_le32(0x00000018);
629 	msg[2] = cpu_to_le32(0x00000000);
630 	msg[3] = cpu_to_le32(0x00000002);
631 	msg[4] = cpu_to_le32(handle);
632 	msg[5] = cpu_to_le32(0x00000000);
633 	for (i = 6; i < 1024; ++i)
634 		msg[i] = cpu_to_le32(0x0);
635 
636 	return 0;
637 }
638 
639 int amdgpu_vcn_dec_ring_test_ib(struct amdgpu_ring *ring, long timeout)
640 {
641 	struct dma_fence *fence = NULL;
642 	struct amdgpu_ib ib;
643 	long r;
644 
645 	r = amdgpu_vcn_dec_get_create_msg(ring, 1, &ib);
646 	if (r)
647 		goto error;
648 
649 	r = amdgpu_vcn_dec_send_msg(ring, &ib, NULL);
650 	if (r)
651 		goto error;
652 	r = amdgpu_vcn_dec_get_destroy_msg(ring, 1, &ib);
653 	if (r)
654 		goto error;
655 
656 	r = amdgpu_vcn_dec_send_msg(ring, &ib, &fence);
657 	if (r)
658 		goto error;
659 
660 	r = dma_fence_wait_timeout(fence, false, timeout);
661 	if (r == 0)
662 		r = -ETIMEDOUT;
663 	else if (r > 0)
664 		r = 0;
665 
666 	dma_fence_put(fence);
667 error:
668 	return r;
669 }
670 
671 static uint32_t *amdgpu_vcn_unified_ring_ib_header(struct amdgpu_ib *ib,
672 						uint32_t ib_pack_in_dw, bool enc)
673 {
674 	uint32_t *ib_checksum;
675 
676 	ib->ptr[ib->length_dw++] = 0x00000010; /* single queue checksum */
677 	ib->ptr[ib->length_dw++] = 0x30000002;
678 	ib_checksum = &ib->ptr[ib->length_dw++];
679 	ib->ptr[ib->length_dw++] = ib_pack_in_dw;
680 
681 	ib->ptr[ib->length_dw++] = 0x00000010; /* engine info */
682 	ib->ptr[ib->length_dw++] = 0x30000001;
683 	ib->ptr[ib->length_dw++] = enc ? 0x2 : 0x3;
684 	ib->ptr[ib->length_dw++] = ib_pack_in_dw * sizeof(uint32_t);
685 
686 	return ib_checksum;
687 }
688 
689 static void amdgpu_vcn_unified_ring_ib_checksum(uint32_t **ib_checksum,
690 						uint32_t ib_pack_in_dw)
691 {
692 	uint32_t i;
693 	uint32_t checksum = 0;
694 
695 	for (i = 0; i < ib_pack_in_dw; i++)
696 		checksum += *(*ib_checksum + 2 + i);
697 
698 	**ib_checksum = checksum;
699 }
700 
701 static int amdgpu_vcn_dec_sw_send_msg(struct amdgpu_ring *ring,
702 				      struct amdgpu_ib *ib_msg,
703 				      struct dma_fence **fence)
704 {
705 	struct amdgpu_vcn_decode_buffer *decode_buffer = NULL;
706 	unsigned int ib_size_dw = 64;
707 	struct amdgpu_device *adev = ring->adev;
708 	struct dma_fence *f = NULL;
709 	struct amdgpu_job *job;
710 	struct amdgpu_ib *ib;
711 	uint64_t addr = AMDGPU_GPU_PAGE_ALIGN(ib_msg->gpu_addr);
712 	bool sq = amdgpu_vcn_using_unified_queue(ring);
713 	uint32_t *ib_checksum;
714 	uint32_t ib_pack_in_dw;
715 	int i, r;
716 
717 	if (sq)
718 		ib_size_dw += 8;
719 
720 	r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL,
721 				     ib_size_dw * 4, AMDGPU_IB_POOL_DIRECT,
722 				     &job);
723 	if (r)
724 		goto err;
725 
726 	ib = &job->ibs[0];
727 	ib->length_dw = 0;
728 
729 	/* single queue headers */
730 	if (sq) {
731 		ib_pack_in_dw = sizeof(struct amdgpu_vcn_decode_buffer) / sizeof(uint32_t)
732 						+ 4 + 2; /* engine info + decoding ib in dw */
733 		ib_checksum = amdgpu_vcn_unified_ring_ib_header(ib, ib_pack_in_dw, false);
734 	}
735 
736 	ib->ptr[ib->length_dw++] = sizeof(struct amdgpu_vcn_decode_buffer) + 8;
737 	ib->ptr[ib->length_dw++] = cpu_to_le32(AMDGPU_VCN_IB_FLAG_DECODE_BUFFER);
738 	decode_buffer = (struct amdgpu_vcn_decode_buffer *)&(ib->ptr[ib->length_dw]);
739 	ib->length_dw += sizeof(struct amdgpu_vcn_decode_buffer) / 4;
740 	memset(decode_buffer, 0, sizeof(struct amdgpu_vcn_decode_buffer));
741 
742 	decode_buffer->valid_buf_flag |= cpu_to_le32(AMDGPU_VCN_CMD_FLAG_MSG_BUFFER);
743 	decode_buffer->msg_buffer_address_hi = cpu_to_le32(addr >> 32);
744 	decode_buffer->msg_buffer_address_lo = cpu_to_le32(addr);
745 
746 	for (i = ib->length_dw; i < ib_size_dw; ++i)
747 		ib->ptr[i] = 0x0;
748 
749 	if (sq)
750 		amdgpu_vcn_unified_ring_ib_checksum(&ib_checksum, ib_pack_in_dw);
751 
752 	r = amdgpu_job_submit_direct(job, ring, &f);
753 	if (r)
754 		goto err_free;
755 
756 	amdgpu_ib_free(adev, ib_msg, f);
757 
758 	if (fence)
759 		*fence = dma_fence_get(f);
760 	dma_fence_put(f);
761 
762 	return 0;
763 
764 err_free:
765 	amdgpu_job_free(job);
766 err:
767 	amdgpu_ib_free(adev, ib_msg, f);
768 	return r;
769 }
770 
771 int amdgpu_vcn_dec_sw_ring_test_ib(struct amdgpu_ring *ring, long timeout)
772 {
773 	struct dma_fence *fence = NULL;
774 	struct amdgpu_ib ib;
775 	long r;
776 
777 	r = amdgpu_vcn_dec_get_create_msg(ring, 1, &ib);
778 	if (r)
779 		goto error;
780 
781 	r = amdgpu_vcn_dec_sw_send_msg(ring, &ib, NULL);
782 	if (r)
783 		goto error;
784 	r = amdgpu_vcn_dec_get_destroy_msg(ring, 1, &ib);
785 	if (r)
786 		goto error;
787 
788 	r = amdgpu_vcn_dec_sw_send_msg(ring, &ib, &fence);
789 	if (r)
790 		goto error;
791 
792 	r = dma_fence_wait_timeout(fence, false, timeout);
793 	if (r == 0)
794 		r = -ETIMEDOUT;
795 	else if (r > 0)
796 		r = 0;
797 
798 	dma_fence_put(fence);
799 error:
800 	return r;
801 }
802 
803 int amdgpu_vcn_enc_ring_test_ring(struct amdgpu_ring *ring)
804 {
805 	struct amdgpu_device *adev = ring->adev;
806 	uint32_t rptr;
807 	unsigned int i;
808 	int r;
809 
810 	if (amdgpu_sriov_vf(adev))
811 		return 0;
812 
813 	r = amdgpu_ring_alloc(ring, 16);
814 	if (r)
815 		return r;
816 
817 	rptr = amdgpu_ring_get_rptr(ring);
818 
819 	amdgpu_ring_write(ring, VCN_ENC_CMD_END);
820 	amdgpu_ring_commit(ring);
821 
822 	for (i = 0; i < adev->usec_timeout; i++) {
823 		if (amdgpu_ring_get_rptr(ring) != rptr)
824 			break;
825 		udelay(1);
826 	}
827 
828 	if (i >= adev->usec_timeout)
829 		r = -ETIMEDOUT;
830 
831 	return r;
832 }
833 
834 static int amdgpu_vcn_enc_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
835 					 struct amdgpu_ib *ib_msg,
836 					 struct dma_fence **fence)
837 {
838 	unsigned int ib_size_dw = 16;
839 	struct amdgpu_job *job;
840 	struct amdgpu_ib *ib;
841 	struct dma_fence *f = NULL;
842 	uint32_t *ib_checksum = NULL;
843 	uint64_t addr;
844 	bool sq = amdgpu_vcn_using_unified_queue(ring);
845 	int i, r;
846 
847 	if (sq)
848 		ib_size_dw += 8;
849 
850 	r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL,
851 				     ib_size_dw * 4, AMDGPU_IB_POOL_DIRECT,
852 				     &job);
853 	if (r)
854 		return r;
855 
856 	ib = &job->ibs[0];
857 	addr = AMDGPU_GPU_PAGE_ALIGN(ib_msg->gpu_addr);
858 
859 	ib->length_dw = 0;
860 
861 	if (sq)
862 		ib_checksum = amdgpu_vcn_unified_ring_ib_header(ib, 0x11, true);
863 
864 	ib->ptr[ib->length_dw++] = 0x00000018;
865 	ib->ptr[ib->length_dw++] = 0x00000001; /* session info */
866 	ib->ptr[ib->length_dw++] = handle;
867 	ib->ptr[ib->length_dw++] = upper_32_bits(addr);
868 	ib->ptr[ib->length_dw++] = addr;
869 	ib->ptr[ib->length_dw++] = 0x0000000b;
870 
871 	ib->ptr[ib->length_dw++] = 0x00000014;
872 	ib->ptr[ib->length_dw++] = 0x00000002; /* task info */
873 	ib->ptr[ib->length_dw++] = 0x0000001c;
874 	ib->ptr[ib->length_dw++] = 0x00000000;
875 	ib->ptr[ib->length_dw++] = 0x00000000;
876 
877 	ib->ptr[ib->length_dw++] = 0x00000008;
878 	ib->ptr[ib->length_dw++] = 0x08000001; /* op initialize */
879 
880 	for (i = ib->length_dw; i < ib_size_dw; ++i)
881 		ib->ptr[i] = 0x0;
882 
883 	if (sq)
884 		amdgpu_vcn_unified_ring_ib_checksum(&ib_checksum, 0x11);
885 
886 	r = amdgpu_job_submit_direct(job, ring, &f);
887 	if (r)
888 		goto err;
889 
890 	if (fence)
891 		*fence = dma_fence_get(f);
892 	dma_fence_put(f);
893 
894 	return 0;
895 
896 err:
897 	amdgpu_job_free(job);
898 	return r;
899 }
900 
901 static int amdgpu_vcn_enc_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
902 					  struct amdgpu_ib *ib_msg,
903 					  struct dma_fence **fence)
904 {
905 	unsigned int ib_size_dw = 16;
906 	struct amdgpu_job *job;
907 	struct amdgpu_ib *ib;
908 	struct dma_fence *f = NULL;
909 	uint32_t *ib_checksum = NULL;
910 	uint64_t addr;
911 	bool sq = amdgpu_vcn_using_unified_queue(ring);
912 	int i, r;
913 
914 	if (sq)
915 		ib_size_dw += 8;
916 
917 	r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL,
918 				     ib_size_dw * 4, AMDGPU_IB_POOL_DIRECT,
919 				     &job);
920 	if (r)
921 		return r;
922 
923 	ib = &job->ibs[0];
924 	addr = AMDGPU_GPU_PAGE_ALIGN(ib_msg->gpu_addr);
925 
926 	ib->length_dw = 0;
927 
928 	if (sq)
929 		ib_checksum = amdgpu_vcn_unified_ring_ib_header(ib, 0x11, true);
930 
931 	ib->ptr[ib->length_dw++] = 0x00000018;
932 	ib->ptr[ib->length_dw++] = 0x00000001;
933 	ib->ptr[ib->length_dw++] = handle;
934 	ib->ptr[ib->length_dw++] = upper_32_bits(addr);
935 	ib->ptr[ib->length_dw++] = addr;
936 	ib->ptr[ib->length_dw++] = 0x0000000b;
937 
938 	ib->ptr[ib->length_dw++] = 0x00000014;
939 	ib->ptr[ib->length_dw++] = 0x00000002;
940 	ib->ptr[ib->length_dw++] = 0x0000001c;
941 	ib->ptr[ib->length_dw++] = 0x00000000;
942 	ib->ptr[ib->length_dw++] = 0x00000000;
943 
944 	ib->ptr[ib->length_dw++] = 0x00000008;
945 	ib->ptr[ib->length_dw++] = 0x08000002; /* op close session */
946 
947 	for (i = ib->length_dw; i < ib_size_dw; ++i)
948 		ib->ptr[i] = 0x0;
949 
950 	if (sq)
951 		amdgpu_vcn_unified_ring_ib_checksum(&ib_checksum, 0x11);
952 
953 	r = amdgpu_job_submit_direct(job, ring, &f);
954 	if (r)
955 		goto err;
956 
957 	if (fence)
958 		*fence = dma_fence_get(f);
959 	dma_fence_put(f);
960 
961 	return 0;
962 
963 err:
964 	amdgpu_job_free(job);
965 	return r;
966 }
967 
968 int amdgpu_vcn_enc_ring_test_ib(struct amdgpu_ring *ring, long timeout)
969 {
970 	struct amdgpu_device *adev = ring->adev;
971 	struct dma_fence *fence = NULL;
972 	struct amdgpu_ib ib;
973 	long r;
974 
975 	memset(&ib, 0, sizeof(ib));
976 	r = amdgpu_ib_get(adev, NULL, (128 << 10) + AMDGPU_GPU_PAGE_SIZE,
977 			AMDGPU_IB_POOL_DIRECT,
978 			&ib);
979 	if (r)
980 		return r;
981 
982 	r = amdgpu_vcn_enc_get_create_msg(ring, 1, &ib, NULL);
983 	if (r)
984 		goto error;
985 
986 	r = amdgpu_vcn_enc_get_destroy_msg(ring, 1, &ib, &fence);
987 	if (r)
988 		goto error;
989 
990 	r = dma_fence_wait_timeout(fence, false, timeout);
991 	if (r == 0)
992 		r = -ETIMEDOUT;
993 	else if (r > 0)
994 		r = 0;
995 
996 error:
997 	amdgpu_ib_free(adev, &ib, fence);
998 	dma_fence_put(fence);
999 
1000 	return r;
1001 }
1002 
1003 int amdgpu_vcn_unified_ring_test_ib(struct amdgpu_ring *ring, long timeout)
1004 {
1005 	struct amdgpu_device *adev = ring->adev;
1006 	long r;
1007 
1008 	if (amdgpu_ip_version(adev, UVD_HWIP, 0) != IP_VERSION(4, 0, 3)) {
1009 		r = amdgpu_vcn_enc_ring_test_ib(ring, timeout);
1010 		if (r)
1011 			goto error;
1012 	}
1013 
1014 	r =  amdgpu_vcn_dec_sw_ring_test_ib(ring, timeout);
1015 
1016 error:
1017 	return r;
1018 }
1019 
1020 enum amdgpu_ring_priority_level amdgpu_vcn_get_enc_ring_prio(int ring)
1021 {
1022 	switch (ring) {
1023 	case 0:
1024 		return AMDGPU_RING_PRIO_0;
1025 	case 1:
1026 		return AMDGPU_RING_PRIO_1;
1027 	case 2:
1028 		return AMDGPU_RING_PRIO_2;
1029 	default:
1030 		return AMDGPU_RING_PRIO_0;
1031 	}
1032 }
1033 
1034 void amdgpu_vcn_setup_ucode(struct amdgpu_device *adev)
1035 {
1036 	int i;
1037 	unsigned int idx;
1038 
1039 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
1040 		const struct common_firmware_header *hdr;
1041 
1042 		hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
1043 
1044 		for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
1045 			if (adev->vcn.harvest_config & (1 << i))
1046 				continue;
1047 			/* currently only support 2 FW instances */
1048 			if (i >= 2) {
1049 				dev_info(adev->dev, "More then 2 VCN FW instances!\n");
1050 				break;
1051 			}
1052 			idx = AMDGPU_UCODE_ID_VCN + i;
1053 			adev->firmware.ucode[idx].ucode_id = idx;
1054 			adev->firmware.ucode[idx].fw = adev->vcn.fw;
1055 			adev->firmware.fw_size +=
1056 				ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
1057 
1058 			if (amdgpu_ip_version(adev, UVD_HWIP, 0) ==
1059 			    IP_VERSION(4, 0, 3))
1060 				break;
1061 		}
1062 		dev_info(adev->dev, "Will use PSP to load VCN firmware\n");
1063 	}
1064 }
1065 
1066 /*
1067  * debugfs for mapping vcn firmware log buffer.
1068  */
1069 #if defined(CONFIG_DEBUG_FS)
1070 static ssize_t amdgpu_debugfs_vcn_fwlog_read(struct file *f, char __user *buf,
1071 					     size_t size, loff_t *pos)
1072 {
1073 	struct amdgpu_vcn_inst *vcn;
1074 	void *log_buf;
1075 	volatile struct amdgpu_vcn_fwlog *plog;
1076 	unsigned int read_pos, write_pos, available, i, read_bytes = 0;
1077 	unsigned int read_num[2] = {0};
1078 
1079 	vcn = file_inode(f)->i_private;
1080 	if (!vcn)
1081 		return -ENODEV;
1082 
1083 	if (!vcn->fw_shared.cpu_addr || !amdgpu_vcnfw_log)
1084 		return -EFAULT;
1085 
1086 	log_buf = vcn->fw_shared.cpu_addr + vcn->fw_shared.mem_size;
1087 
1088 	plog = (volatile struct amdgpu_vcn_fwlog *)log_buf;
1089 	read_pos = plog->rptr;
1090 	write_pos = plog->wptr;
1091 
1092 	if (read_pos > AMDGPU_VCNFW_LOG_SIZE || write_pos > AMDGPU_VCNFW_LOG_SIZE)
1093 		return -EFAULT;
1094 
1095 	if (!size || (read_pos == write_pos))
1096 		return 0;
1097 
1098 	if (write_pos > read_pos) {
1099 		available = write_pos - read_pos;
1100 		read_num[0] = min_t(size_t, size, available);
1101 	} else {
1102 		read_num[0] = AMDGPU_VCNFW_LOG_SIZE - read_pos;
1103 		available = read_num[0] + write_pos - plog->header_size;
1104 		if (size > available)
1105 			read_num[1] = write_pos - plog->header_size;
1106 		else if (size > read_num[0])
1107 			read_num[1] = size - read_num[0];
1108 		else
1109 			read_num[0] = size;
1110 	}
1111 
1112 	for (i = 0; i < 2; i++) {
1113 		if (read_num[i]) {
1114 			if (read_pos == AMDGPU_VCNFW_LOG_SIZE)
1115 				read_pos = plog->header_size;
1116 			if (read_num[i] == copy_to_user((buf + read_bytes),
1117 							(log_buf + read_pos), read_num[i]))
1118 				return -EFAULT;
1119 
1120 			read_bytes += read_num[i];
1121 			read_pos += read_num[i];
1122 		}
1123 	}
1124 
1125 	plog->rptr = read_pos;
1126 	*pos += read_bytes;
1127 	return read_bytes;
1128 }
1129 
1130 static const struct file_operations amdgpu_debugfs_vcnfwlog_fops = {
1131 	.owner = THIS_MODULE,
1132 	.read = amdgpu_debugfs_vcn_fwlog_read,
1133 	.llseek = default_llseek
1134 };
1135 #endif
1136 
1137 void amdgpu_debugfs_vcn_fwlog_init(struct amdgpu_device *adev, uint8_t i,
1138 				   struct amdgpu_vcn_inst *vcn)
1139 {
1140 #if defined(CONFIG_DEBUG_FS)
1141 	struct drm_minor *minor = adev_to_drm(adev)->primary;
1142 	struct dentry *root = minor->debugfs_root;
1143 	char name[32];
1144 
1145 	sprintf(name, "amdgpu_vcn_%d_fwlog", i);
1146 	debugfs_create_file_size(name, S_IFREG | 0444, root, vcn,
1147 				 &amdgpu_debugfs_vcnfwlog_fops,
1148 				 AMDGPU_VCNFW_LOG_SIZE);
1149 #endif
1150 }
1151 
1152 void amdgpu_vcn_fwlog_init(struct amdgpu_vcn_inst *vcn)
1153 {
1154 #if defined(CONFIG_DEBUG_FS)
1155 	volatile uint32_t *flag = vcn->fw_shared.cpu_addr;
1156 	void *fw_log_cpu_addr = vcn->fw_shared.cpu_addr + vcn->fw_shared.mem_size;
1157 	uint64_t fw_log_gpu_addr = vcn->fw_shared.gpu_addr + vcn->fw_shared.mem_size;
1158 	volatile struct amdgpu_vcn_fwlog *log_buf = fw_log_cpu_addr;
1159 	volatile struct amdgpu_fw_shared_fw_logging *fw_log = vcn->fw_shared.cpu_addr
1160 							 + vcn->fw_shared.log_offset;
1161 	*flag |= cpu_to_le32(AMDGPU_VCN_FW_LOGGING_FLAG);
1162 	fw_log->is_enabled = 1;
1163 	fw_log->addr_lo = cpu_to_le32(fw_log_gpu_addr & 0xFFFFFFFF);
1164 	fw_log->addr_hi = cpu_to_le32(fw_log_gpu_addr >> 32);
1165 	fw_log->size = cpu_to_le32(AMDGPU_VCNFW_LOG_SIZE);
1166 
1167 	log_buf->header_size = sizeof(struct amdgpu_vcn_fwlog);
1168 	log_buf->buffer_size = AMDGPU_VCNFW_LOG_SIZE;
1169 	log_buf->rptr = log_buf->header_size;
1170 	log_buf->wptr = log_buf->header_size;
1171 	log_buf->wrapped = 0;
1172 #endif
1173 }
1174 
1175 int amdgpu_vcn_process_poison_irq(struct amdgpu_device *adev,
1176 				struct amdgpu_irq_src *source,
1177 				struct amdgpu_iv_entry *entry)
1178 {
1179 	struct ras_common_if *ras_if = adev->vcn.ras_if;
1180 	struct ras_dispatch_if ih_data = {
1181 		.entry = entry,
1182 	};
1183 
1184 	if (!ras_if)
1185 		return 0;
1186 
1187 	if (!amdgpu_sriov_vf(adev)) {
1188 		ih_data.head = *ras_if;
1189 		amdgpu_ras_interrupt_dispatch(adev, &ih_data);
1190 	} else {
1191 		if (adev->virt.ops && adev->virt.ops->ras_poison_handler)
1192 			adev->virt.ops->ras_poison_handler(adev);
1193 		else
1194 			dev_warn(adev->dev,
1195 				"No ras_poison_handler interface in SRIOV for VCN!\n");
1196 	}
1197 
1198 	return 0;
1199 }
1200 
1201 int amdgpu_vcn_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block)
1202 {
1203 	int r, i;
1204 
1205 	r = amdgpu_ras_block_late_init(adev, ras_block);
1206 	if (r)
1207 		return r;
1208 
1209 	if (amdgpu_ras_is_supported(adev, ras_block->block)) {
1210 		for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
1211 			if (adev->vcn.harvest_config & (1 << i) ||
1212 			    !adev->vcn.inst[i].ras_poison_irq.funcs)
1213 				continue;
1214 
1215 			r = amdgpu_irq_get(adev, &adev->vcn.inst[i].ras_poison_irq, 0);
1216 			if (r)
1217 				goto late_fini;
1218 		}
1219 	}
1220 	return 0;
1221 
1222 late_fini:
1223 	amdgpu_ras_block_late_fini(adev, ras_block);
1224 	return r;
1225 }
1226 
1227 int amdgpu_vcn_ras_sw_init(struct amdgpu_device *adev)
1228 {
1229 	int err;
1230 	struct amdgpu_vcn_ras *ras;
1231 
1232 	if (!adev->vcn.ras)
1233 		return 0;
1234 
1235 	ras = adev->vcn.ras;
1236 	err = amdgpu_ras_register_ras_block(adev, &ras->ras_block);
1237 	if (err) {
1238 		dev_err(adev->dev, "Failed to register vcn ras block!\n");
1239 		return err;
1240 	}
1241 
1242 	strcpy(ras->ras_block.ras_comm.name, "vcn");
1243 	ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__VCN;
1244 	ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__POISON;
1245 	adev->vcn.ras_if = &ras->ras_block.ras_comm;
1246 
1247 	if (!ras->ras_block.ras_late_init)
1248 		ras->ras_block.ras_late_init = amdgpu_vcn_ras_late_init;
1249 
1250 	return 0;
1251 }
1252 
1253 int amdgpu_vcn_psp_update_sram(struct amdgpu_device *adev, int inst_idx,
1254 			       enum AMDGPU_UCODE_ID ucode_id)
1255 {
1256 	struct amdgpu_firmware_info ucode = {
1257 		.ucode_id = (ucode_id ? ucode_id :
1258 			    (inst_idx ? AMDGPU_UCODE_ID_VCN1_RAM :
1259 					AMDGPU_UCODE_ID_VCN0_RAM)),
1260 		.mc_addr = adev->vcn.inst[inst_idx].dpg_sram_gpu_addr,
1261 		.ucode_size = ((uintptr_t)adev->vcn.inst[inst_idx].dpg_sram_curr_addr -
1262 			      (uintptr_t)adev->vcn.inst[inst_idx].dpg_sram_cpu_addr),
1263 	};
1264 
1265 	return psp_execute_ip_fw_load(&adev->psp, &ucode);
1266 }
1267