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