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 	/* from vcn4 and above, only unified queue is used */
139 	adev->vcn.using_unified_queue =
140 		adev->ip_versions[UVD_HWIP][0] >= IP_VERSION(4, 0, 0);
141 
142 	hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
143 	adev->vcn.fw_version = le32_to_cpu(hdr->ucode_version);
144 
145 	/* Bit 20-23, it is encode major and non-zero for new naming convention.
146 	 * This field is part of version minor and DRM_DISABLED_FLAG in old naming
147 	 * convention. Since the l:wq!atest version minor is 0x5B and DRM_DISABLED_FLAG
148 	 * is zero in old naming convention, this field is always zero so far.
149 	 * These four bits are used to tell which naming convention is present.
150 	 */
151 	fw_check = (le32_to_cpu(hdr->ucode_version) >> 20) & 0xf;
152 	if (fw_check) {
153 		unsigned int dec_ver, enc_major, enc_minor, vep, fw_rev;
154 
155 		fw_rev = le32_to_cpu(hdr->ucode_version) & 0xfff;
156 		enc_minor = (le32_to_cpu(hdr->ucode_version) >> 12) & 0xff;
157 		enc_major = fw_check;
158 		dec_ver = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xf;
159 		vep = (le32_to_cpu(hdr->ucode_version) >> 28) & 0xf;
160 		DRM_INFO("Found VCN firmware Version ENC: %u.%u DEC: %u VEP: %u Revision: %u\n",
161 			enc_major, enc_minor, dec_ver, vep, fw_rev);
162 	} else {
163 		unsigned int version_major, version_minor, family_id;
164 
165 		family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
166 		version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
167 		version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
168 		DRM_INFO("Found VCN firmware Version: %u.%u Family ID: %u\n",
169 			version_major, version_minor, family_id);
170 	}
171 
172 	bo_size = AMDGPU_VCN_STACK_SIZE + AMDGPU_VCN_CONTEXT_SIZE;
173 	if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
174 		bo_size += AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8);
175 
176 	if (adev->ip_versions[UVD_HWIP][0] >= IP_VERSION(4, 0, 0)) {
177 		fw_shared_size = AMDGPU_GPU_PAGE_ALIGN(sizeof(struct amdgpu_vcn4_fw_shared));
178 		log_offset = offsetof(struct amdgpu_vcn4_fw_shared, fw_log);
179 	} else {
180 		fw_shared_size = AMDGPU_GPU_PAGE_ALIGN(sizeof(struct amdgpu_fw_shared));
181 		log_offset = offsetof(struct amdgpu_fw_shared, fw_log);
182 	}
183 
184 	bo_size += fw_shared_size;
185 
186 	if (amdgpu_vcnfw_log)
187 		bo_size += AMDGPU_VCNFW_LOG_SIZE;
188 
189 	for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
190 		if (adev->vcn.harvest_config & (1 << i))
191 			continue;
192 
193 		r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,
194 					    AMDGPU_GEM_DOMAIN_VRAM |
195 					    AMDGPU_GEM_DOMAIN_GTT,
196 					    &adev->vcn.inst[i].vcpu_bo,
197 					    &adev->vcn.inst[i].gpu_addr,
198 					    &adev->vcn.inst[i].cpu_addr);
199 		if (r) {
200 			dev_err(adev->dev, "(%d) failed to allocate vcn bo\n", r);
201 			return r;
202 		}
203 
204 		adev->vcn.inst[i].fw_shared.cpu_addr = adev->vcn.inst[i].cpu_addr +
205 				bo_size - fw_shared_size;
206 		adev->vcn.inst[i].fw_shared.gpu_addr = adev->vcn.inst[i].gpu_addr +
207 				bo_size - fw_shared_size;
208 
209 		adev->vcn.inst[i].fw_shared.mem_size = fw_shared_size;
210 
211 		if (amdgpu_vcnfw_log) {
212 			adev->vcn.inst[i].fw_shared.cpu_addr -= AMDGPU_VCNFW_LOG_SIZE;
213 			adev->vcn.inst[i].fw_shared.gpu_addr -= AMDGPU_VCNFW_LOG_SIZE;
214 			adev->vcn.inst[i].fw_shared.log_offset = log_offset;
215 		}
216 
217 		if (adev->vcn.indirect_sram) {
218 			r = amdgpu_bo_create_kernel(adev, 64 * 2 * 4, PAGE_SIZE,
219 					AMDGPU_GEM_DOMAIN_VRAM |
220 					AMDGPU_GEM_DOMAIN_GTT,
221 					&adev->vcn.inst[i].dpg_sram_bo,
222 					&adev->vcn.inst[i].dpg_sram_gpu_addr,
223 					&adev->vcn.inst[i].dpg_sram_cpu_addr);
224 			if (r) {
225 				dev_err(adev->dev, "VCN %d (%d) failed to allocate DPG bo\n", i, r);
226 				return r;
227 			}
228 		}
229 	}
230 
231 	return 0;
232 }
233 
234 int amdgpu_vcn_sw_fini(struct amdgpu_device *adev)
235 {
236 	int i, j;
237 
238 	for (j = 0; j < adev->vcn.num_vcn_inst; ++j) {
239 		if (adev->vcn.harvest_config & (1 << j))
240 			continue;
241 
242 		amdgpu_bo_free_kernel(
243 			&adev->vcn.inst[j].dpg_sram_bo,
244 			&adev->vcn.inst[j].dpg_sram_gpu_addr,
245 			(void **)&adev->vcn.inst[j].dpg_sram_cpu_addr);
246 
247 		kvfree(adev->vcn.inst[j].saved_bo);
248 
249 		amdgpu_bo_free_kernel(&adev->vcn.inst[j].vcpu_bo,
250 					  &adev->vcn.inst[j].gpu_addr,
251 					  (void **)&adev->vcn.inst[j].cpu_addr);
252 
253 		amdgpu_ring_fini(&adev->vcn.inst[j].ring_dec);
254 
255 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
256 			amdgpu_ring_fini(&adev->vcn.inst[j].ring_enc[i]);
257 	}
258 
259 	amdgpu_ucode_release(&adev->vcn.fw);
260 	mutex_destroy(&adev->vcn.vcn1_jpeg1_workaround);
261 	mutex_destroy(&adev->vcn.vcn_pg_lock);
262 
263 	return 0;
264 }
265 
266 bool amdgpu_vcn_is_disabled_vcn(struct amdgpu_device *adev, enum vcn_ring_type type, uint32_t vcn_instance)
267 {
268 	bool ret = false;
269 	int vcn_config = adev->vcn.vcn_config[vcn_instance];
270 
271 	if ((type == VCN_ENCODE_RING) && (vcn_config & VCN_BLOCK_ENCODE_DISABLE_MASK))
272 		ret = true;
273 	else if ((type == VCN_DECODE_RING) && (vcn_config & VCN_BLOCK_DECODE_DISABLE_MASK))
274 		ret = true;
275 	else if ((type == VCN_UNIFIED_RING) && (vcn_config & VCN_BLOCK_QUEUE_DISABLE_MASK))
276 		ret = true;
277 
278 	return ret;
279 }
280 
281 int amdgpu_vcn_suspend(struct amdgpu_device *adev)
282 {
283 	unsigned int size;
284 	void *ptr;
285 	int i, idx;
286 
287 	bool in_ras_intr = amdgpu_ras_intr_triggered();
288 
289 	cancel_delayed_work_sync(&adev->vcn.idle_work);
290 
291 	/* err_event_athub will corrupt VCPU buffer, so we need to
292 	 * restore fw data and clear buffer in amdgpu_vcn_resume() */
293 	if (in_ras_intr)
294 		return 0;
295 
296 	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
297 		if (adev->vcn.harvest_config & (1 << i))
298 			continue;
299 		if (adev->vcn.inst[i].vcpu_bo == NULL)
300 			return 0;
301 
302 		size = amdgpu_bo_size(adev->vcn.inst[i].vcpu_bo);
303 		ptr = adev->vcn.inst[i].cpu_addr;
304 
305 		adev->vcn.inst[i].saved_bo = kvmalloc(size, GFP_KERNEL);
306 		if (!adev->vcn.inst[i].saved_bo)
307 			return -ENOMEM;
308 
309 		if (drm_dev_enter(adev_to_drm(adev), &idx)) {
310 			memcpy_fromio(adev->vcn.inst[i].saved_bo, ptr, size);
311 			drm_dev_exit(idx);
312 		}
313 	}
314 	return 0;
315 }
316 
317 int amdgpu_vcn_resume(struct amdgpu_device *adev)
318 {
319 	unsigned int size;
320 	void *ptr;
321 	int i, idx;
322 
323 	for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
324 		if (adev->vcn.harvest_config & (1 << i))
325 			continue;
326 		if (adev->vcn.inst[i].vcpu_bo == NULL)
327 			return -EINVAL;
328 
329 		size = amdgpu_bo_size(adev->vcn.inst[i].vcpu_bo);
330 		ptr = adev->vcn.inst[i].cpu_addr;
331 
332 		if (adev->vcn.inst[i].saved_bo != NULL) {
333 			if (drm_dev_enter(adev_to_drm(adev), &idx)) {
334 				memcpy_toio(ptr, adev->vcn.inst[i].saved_bo, size);
335 				drm_dev_exit(idx);
336 			}
337 			kvfree(adev->vcn.inst[i].saved_bo);
338 			adev->vcn.inst[i].saved_bo = NULL;
339 		} else {
340 			const struct common_firmware_header *hdr;
341 			unsigned int offset;
342 
343 			hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
344 			if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
345 				offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
346 				if (drm_dev_enter(adev_to_drm(adev), &idx)) {
347 					memcpy_toio(adev->vcn.inst[i].cpu_addr, adev->vcn.fw->data + offset,
348 						    le32_to_cpu(hdr->ucode_size_bytes));
349 					drm_dev_exit(idx);
350 				}
351 				size -= le32_to_cpu(hdr->ucode_size_bytes);
352 				ptr += le32_to_cpu(hdr->ucode_size_bytes);
353 			}
354 			memset_io(ptr, 0, size);
355 		}
356 	}
357 	return 0;
358 }
359 
360 static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
361 {
362 	struct amdgpu_device *adev =
363 		container_of(work, struct amdgpu_device, vcn.idle_work.work);
364 	unsigned int fences = 0, fence[AMDGPU_MAX_VCN_INSTANCES] = {0};
365 	unsigned int i, j;
366 	int r = 0;
367 
368 	for (j = 0; j < adev->vcn.num_vcn_inst; ++j) {
369 		if (adev->vcn.harvest_config & (1 << j))
370 			continue;
371 
372 		for (i = 0; i < adev->vcn.num_enc_rings; ++i)
373 			fence[j] += amdgpu_fence_count_emitted(&adev->vcn.inst[j].ring_enc[i]);
374 
375 		/* Only set DPG pause for VCN3 or below, VCN4 and above will be handled by FW */
376 		if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG &&
377 		    !adev->vcn.using_unified_queue) {
378 			struct dpg_pause_state new_state;
379 
380 			if (fence[j] ||
381 				unlikely(atomic_read(&adev->vcn.inst[j].dpg_enc_submission_cnt)))
382 				new_state.fw_based = VCN_DPG_STATE__PAUSE;
383 			else
384 				new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
385 
386 			adev->vcn.pause_dpg_mode(adev, j, &new_state);
387 		}
388 
389 		fence[j] += amdgpu_fence_count_emitted(&adev->vcn.inst[j].ring_dec);
390 		fences += fence[j];
391 	}
392 
393 	if (!fences && !atomic_read(&adev->vcn.total_submission_cnt)) {
394 		amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
395 		       AMD_PG_STATE_GATE);
396 		r = amdgpu_dpm_switch_power_profile(adev, PP_SMC_POWER_PROFILE_VIDEO,
397 				false);
398 		if (r)
399 			dev_warn(adev->dev, "(%d) failed to disable video power profile mode\n", r);
400 	} else {
401 		schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
402 	}
403 }
404 
405 void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
406 {
407 	struct amdgpu_device *adev = ring->adev;
408 	int r = 0;
409 
410 	atomic_inc(&adev->vcn.total_submission_cnt);
411 
412 	if (!cancel_delayed_work_sync(&adev->vcn.idle_work)) {
413 		r = amdgpu_dpm_switch_power_profile(adev, PP_SMC_POWER_PROFILE_VIDEO,
414 				true);
415 		if (r)
416 			dev_warn(adev->dev, "(%d) failed to switch to video power profile mode\n", r);
417 	}
418 
419 	mutex_lock(&adev->vcn.vcn_pg_lock);
420 	amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
421 	       AMD_PG_STATE_UNGATE);
422 
423 	/* Only set DPG pause for VCN3 or below, VCN4 and above will be handled by FW */
424 	if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG &&
425 	    !adev->vcn.using_unified_queue) {
426 		struct dpg_pause_state new_state;
427 
428 		if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC) {
429 			atomic_inc(&adev->vcn.inst[ring->me].dpg_enc_submission_cnt);
430 			new_state.fw_based = VCN_DPG_STATE__PAUSE;
431 		} else {
432 			unsigned int fences = 0;
433 			unsigned int i;
434 
435 			for (i = 0; i < adev->vcn.num_enc_rings; ++i)
436 				fences += amdgpu_fence_count_emitted(&adev->vcn.inst[ring->me].ring_enc[i]);
437 
438 			if (fences || atomic_read(&adev->vcn.inst[ring->me].dpg_enc_submission_cnt))
439 				new_state.fw_based = VCN_DPG_STATE__PAUSE;
440 			else
441 				new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
442 		}
443 
444 		adev->vcn.pause_dpg_mode(adev, ring->me, &new_state);
445 	}
446 	mutex_unlock(&adev->vcn.vcn_pg_lock);
447 }
448 
449 void amdgpu_vcn_ring_end_use(struct amdgpu_ring *ring)
450 {
451 	struct amdgpu_device *adev = ring->adev;
452 
453 	/* Only set DPG pause for VCN3 or below, VCN4 and above will be handled by FW */
454 	if (ring->adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG &&
455 	    ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC &&
456 	    !adev->vcn.using_unified_queue)
457 		atomic_dec(&ring->adev->vcn.inst[ring->me].dpg_enc_submission_cnt);
458 
459 	atomic_dec(&ring->adev->vcn.total_submission_cnt);
460 
461 	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
462 }
463 
464 int amdgpu_vcn_dec_ring_test_ring(struct amdgpu_ring *ring)
465 {
466 	struct amdgpu_device *adev = ring->adev;
467 	uint32_t tmp = 0;
468 	unsigned int i;
469 	int r;
470 
471 	/* VCN in SRIOV does not support direct register read/write */
472 	if (amdgpu_sriov_vf(adev))
473 		return 0;
474 
475 	WREG32(adev->vcn.inst[ring->me].external.scratch9, 0xCAFEDEAD);
476 	r = amdgpu_ring_alloc(ring, 3);
477 	if (r)
478 		return r;
479 	amdgpu_ring_write(ring, PACKET0(adev->vcn.internal.scratch9, 0));
480 	amdgpu_ring_write(ring, 0xDEADBEEF);
481 	amdgpu_ring_commit(ring);
482 	for (i = 0; i < adev->usec_timeout; i++) {
483 		tmp = RREG32(adev->vcn.inst[ring->me].external.scratch9);
484 		if (tmp == 0xDEADBEEF)
485 			break;
486 		udelay(1);
487 	}
488 
489 	if (i >= adev->usec_timeout)
490 		r = -ETIMEDOUT;
491 
492 	return r;
493 }
494 
495 int amdgpu_vcn_dec_sw_ring_test_ring(struct amdgpu_ring *ring)
496 {
497 	struct amdgpu_device *adev = ring->adev;
498 	uint32_t rptr;
499 	unsigned int i;
500 	int r;
501 
502 	if (amdgpu_sriov_vf(adev))
503 		return 0;
504 
505 	r = amdgpu_ring_alloc(ring, 16);
506 	if (r)
507 		return r;
508 
509 	rptr = amdgpu_ring_get_rptr(ring);
510 
511 	amdgpu_ring_write(ring, VCN_DEC_SW_CMD_END);
512 	amdgpu_ring_commit(ring);
513 
514 	for (i = 0; i < adev->usec_timeout; i++) {
515 		if (amdgpu_ring_get_rptr(ring) != rptr)
516 			break;
517 		udelay(1);
518 	}
519 
520 	if (i >= adev->usec_timeout)
521 		r = -ETIMEDOUT;
522 
523 	return r;
524 }
525 
526 static int amdgpu_vcn_dec_send_msg(struct amdgpu_ring *ring,
527 				   struct amdgpu_ib *ib_msg,
528 				   struct dma_fence **fence)
529 {
530 	u64 addr = AMDGPU_GPU_PAGE_ALIGN(ib_msg->gpu_addr);
531 	struct amdgpu_device *adev = ring->adev;
532 	struct dma_fence *f = NULL;
533 	struct amdgpu_job *job;
534 	struct amdgpu_ib *ib;
535 	int i, r;
536 
537 	r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL,
538 				     64, AMDGPU_IB_POOL_DIRECT,
539 				     &job);
540 	if (r)
541 		goto err;
542 
543 	ib = &job->ibs[0];
544 	ib->ptr[0] = PACKET0(adev->vcn.internal.data0, 0);
545 	ib->ptr[1] = addr;
546 	ib->ptr[2] = PACKET0(adev->vcn.internal.data1, 0);
547 	ib->ptr[3] = addr >> 32;
548 	ib->ptr[4] = PACKET0(adev->vcn.internal.cmd, 0);
549 	ib->ptr[5] = 0;
550 	for (i = 6; i < 16; i += 2) {
551 		ib->ptr[i] = PACKET0(adev->vcn.internal.nop, 0);
552 		ib->ptr[i+1] = 0;
553 	}
554 	ib->length_dw = 16;
555 
556 	r = amdgpu_job_submit_direct(job, ring, &f);
557 	if (r)
558 		goto err_free;
559 
560 	amdgpu_ib_free(adev, ib_msg, f);
561 
562 	if (fence)
563 		*fence = dma_fence_get(f);
564 	dma_fence_put(f);
565 
566 	return 0;
567 
568 err_free:
569 	amdgpu_job_free(job);
570 err:
571 	amdgpu_ib_free(adev, ib_msg, f);
572 	return r;
573 }
574 
575 static int amdgpu_vcn_dec_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
576 		struct amdgpu_ib *ib)
577 {
578 	struct amdgpu_device *adev = ring->adev;
579 	uint32_t *msg;
580 	int r, i;
581 
582 	memset(ib, 0, sizeof(*ib));
583 	r = amdgpu_ib_get(adev, NULL, AMDGPU_GPU_PAGE_SIZE * 2,
584 			AMDGPU_IB_POOL_DIRECT,
585 			ib);
586 	if (r)
587 		return r;
588 
589 	msg = (uint32_t *)AMDGPU_GPU_PAGE_ALIGN((unsigned long)ib->ptr);
590 	msg[0] = cpu_to_le32(0x00000028);
591 	msg[1] = cpu_to_le32(0x00000038);
592 	msg[2] = cpu_to_le32(0x00000001);
593 	msg[3] = cpu_to_le32(0x00000000);
594 	msg[4] = cpu_to_le32(handle);
595 	msg[5] = cpu_to_le32(0x00000000);
596 	msg[6] = cpu_to_le32(0x00000001);
597 	msg[7] = cpu_to_le32(0x00000028);
598 	msg[8] = cpu_to_le32(0x00000010);
599 	msg[9] = cpu_to_le32(0x00000000);
600 	msg[10] = cpu_to_le32(0x00000007);
601 	msg[11] = cpu_to_le32(0x00000000);
602 	msg[12] = cpu_to_le32(0x00000780);
603 	msg[13] = cpu_to_le32(0x00000440);
604 	for (i = 14; i < 1024; ++i)
605 		msg[i] = cpu_to_le32(0x0);
606 
607 	return 0;
608 }
609 
610 static int amdgpu_vcn_dec_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
611 					  struct amdgpu_ib *ib)
612 {
613 	struct amdgpu_device *adev = ring->adev;
614 	uint32_t *msg;
615 	int r, i;
616 
617 	memset(ib, 0, sizeof(*ib));
618 	r = amdgpu_ib_get(adev, NULL, AMDGPU_GPU_PAGE_SIZE * 2,
619 			AMDGPU_IB_POOL_DIRECT,
620 			ib);
621 	if (r)
622 		return r;
623 
624 	msg = (uint32_t *)AMDGPU_GPU_PAGE_ALIGN((unsigned long)ib->ptr);
625 	msg[0] = cpu_to_le32(0x00000028);
626 	msg[1] = cpu_to_le32(0x00000018);
627 	msg[2] = cpu_to_le32(0x00000000);
628 	msg[3] = cpu_to_le32(0x00000002);
629 	msg[4] = cpu_to_le32(handle);
630 	msg[5] = cpu_to_le32(0x00000000);
631 	for (i = 6; i < 1024; ++i)
632 		msg[i] = cpu_to_le32(0x0);
633 
634 	return 0;
635 }
636 
637 int amdgpu_vcn_dec_ring_test_ib(struct amdgpu_ring *ring, long timeout)
638 {
639 	struct dma_fence *fence = NULL;
640 	struct amdgpu_ib ib;
641 	long r;
642 
643 	r = amdgpu_vcn_dec_get_create_msg(ring, 1, &ib);
644 	if (r)
645 		goto error;
646 
647 	r = amdgpu_vcn_dec_send_msg(ring, &ib, NULL);
648 	if (r)
649 		goto error;
650 	r = amdgpu_vcn_dec_get_destroy_msg(ring, 1, &ib);
651 	if (r)
652 		goto error;
653 
654 	r = amdgpu_vcn_dec_send_msg(ring, &ib, &fence);
655 	if (r)
656 		goto error;
657 
658 	r = dma_fence_wait_timeout(fence, false, timeout);
659 	if (r == 0)
660 		r = -ETIMEDOUT;
661 	else if (r > 0)
662 		r = 0;
663 
664 	dma_fence_put(fence);
665 error:
666 	return r;
667 }
668 
669 static uint32_t *amdgpu_vcn_unified_ring_ib_header(struct amdgpu_ib *ib,
670 						uint32_t ib_pack_in_dw, bool enc)
671 {
672 	uint32_t *ib_checksum;
673 
674 	ib->ptr[ib->length_dw++] = 0x00000010; /* single queue checksum */
675 	ib->ptr[ib->length_dw++] = 0x30000002;
676 	ib_checksum = &ib->ptr[ib->length_dw++];
677 	ib->ptr[ib->length_dw++] = ib_pack_in_dw;
678 
679 	ib->ptr[ib->length_dw++] = 0x00000010; /* engine info */
680 	ib->ptr[ib->length_dw++] = 0x30000001;
681 	ib->ptr[ib->length_dw++] = enc ? 0x2 : 0x3;
682 	ib->ptr[ib->length_dw++] = ib_pack_in_dw * sizeof(uint32_t);
683 
684 	return ib_checksum;
685 }
686 
687 static void amdgpu_vcn_unified_ring_ib_checksum(uint32_t **ib_checksum,
688 						uint32_t ib_pack_in_dw)
689 {
690 	uint32_t i;
691 	uint32_t checksum = 0;
692 
693 	for (i = 0; i < ib_pack_in_dw; i++)
694 		checksum += *(*ib_checksum + 2 + i);
695 
696 	**ib_checksum = checksum;
697 }
698 
699 static int amdgpu_vcn_dec_sw_send_msg(struct amdgpu_ring *ring,
700 				      struct amdgpu_ib *ib_msg,
701 				      struct dma_fence **fence)
702 {
703 	struct amdgpu_vcn_decode_buffer *decode_buffer = NULL;
704 	unsigned int ib_size_dw = 64;
705 	struct amdgpu_device *adev = ring->adev;
706 	struct dma_fence *f = NULL;
707 	struct amdgpu_job *job;
708 	struct amdgpu_ib *ib;
709 	uint64_t addr = AMDGPU_GPU_PAGE_ALIGN(ib_msg->gpu_addr);
710 	uint32_t *ib_checksum;
711 	uint32_t ib_pack_in_dw;
712 	int i, r;
713 
714 	if (adev->vcn.using_unified_queue)
715 		ib_size_dw += 8;
716 
717 	r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL,
718 				     ib_size_dw * 4, AMDGPU_IB_POOL_DIRECT,
719 				     &job);
720 	if (r)
721 		goto err;
722 
723 	ib = &job->ibs[0];
724 	ib->length_dw = 0;
725 
726 	/* single queue headers */
727 	if (adev->vcn.using_unified_queue) {
728 		ib_pack_in_dw = sizeof(struct amdgpu_vcn_decode_buffer) / sizeof(uint32_t)
729 						+ 4 + 2; /* engine info + decoding ib in dw */
730 		ib_checksum = amdgpu_vcn_unified_ring_ib_header(ib, ib_pack_in_dw, false);
731 	}
732 
733 	ib->ptr[ib->length_dw++] = sizeof(struct amdgpu_vcn_decode_buffer) + 8;
734 	ib->ptr[ib->length_dw++] = cpu_to_le32(AMDGPU_VCN_IB_FLAG_DECODE_BUFFER);
735 	decode_buffer = (struct amdgpu_vcn_decode_buffer *)&(ib->ptr[ib->length_dw]);
736 	ib->length_dw += sizeof(struct amdgpu_vcn_decode_buffer) / 4;
737 	memset(decode_buffer, 0, sizeof(struct amdgpu_vcn_decode_buffer));
738 
739 	decode_buffer->valid_buf_flag |= cpu_to_le32(AMDGPU_VCN_CMD_FLAG_MSG_BUFFER);
740 	decode_buffer->msg_buffer_address_hi = cpu_to_le32(addr >> 32);
741 	decode_buffer->msg_buffer_address_lo = cpu_to_le32(addr);
742 
743 	for (i = ib->length_dw; i < ib_size_dw; ++i)
744 		ib->ptr[i] = 0x0;
745 
746 	if (adev->vcn.using_unified_queue)
747 		amdgpu_vcn_unified_ring_ib_checksum(&ib_checksum, ib_pack_in_dw);
748 
749 	r = amdgpu_job_submit_direct(job, ring, &f);
750 	if (r)
751 		goto err_free;
752 
753 	amdgpu_ib_free(adev, ib_msg, f);
754 
755 	if (fence)
756 		*fence = dma_fence_get(f);
757 	dma_fence_put(f);
758 
759 	return 0;
760 
761 err_free:
762 	amdgpu_job_free(job);
763 err:
764 	amdgpu_ib_free(adev, ib_msg, f);
765 	return r;
766 }
767 
768 int amdgpu_vcn_dec_sw_ring_test_ib(struct amdgpu_ring *ring, long timeout)
769 {
770 	struct dma_fence *fence = NULL;
771 	struct amdgpu_ib ib;
772 	long r;
773 
774 	r = amdgpu_vcn_dec_get_create_msg(ring, 1, &ib);
775 	if (r)
776 		goto error;
777 
778 	r = amdgpu_vcn_dec_sw_send_msg(ring, &ib, NULL);
779 	if (r)
780 		goto error;
781 	r = amdgpu_vcn_dec_get_destroy_msg(ring, 1, &ib);
782 	if (r)
783 		goto error;
784 
785 	r = amdgpu_vcn_dec_sw_send_msg(ring, &ib, &fence);
786 	if (r)
787 		goto error;
788 
789 	r = dma_fence_wait_timeout(fence, false, timeout);
790 	if (r == 0)
791 		r = -ETIMEDOUT;
792 	else if (r > 0)
793 		r = 0;
794 
795 	dma_fence_put(fence);
796 error:
797 	return r;
798 }
799 
800 int amdgpu_vcn_enc_ring_test_ring(struct amdgpu_ring *ring)
801 {
802 	struct amdgpu_device *adev = ring->adev;
803 	uint32_t rptr;
804 	unsigned int i;
805 	int r;
806 
807 	if (amdgpu_sriov_vf(adev))
808 		return 0;
809 
810 	r = amdgpu_ring_alloc(ring, 16);
811 	if (r)
812 		return r;
813 
814 	rptr = amdgpu_ring_get_rptr(ring);
815 
816 	amdgpu_ring_write(ring, VCN_ENC_CMD_END);
817 	amdgpu_ring_commit(ring);
818 
819 	for (i = 0; i < adev->usec_timeout; i++) {
820 		if (amdgpu_ring_get_rptr(ring) != rptr)
821 			break;
822 		udelay(1);
823 	}
824 
825 	if (i >= adev->usec_timeout)
826 		r = -ETIMEDOUT;
827 
828 	return r;
829 }
830 
831 static int amdgpu_vcn_enc_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
832 					 struct amdgpu_ib *ib_msg,
833 					 struct dma_fence **fence)
834 {
835 	unsigned int ib_size_dw = 16;
836 	struct amdgpu_device *adev = ring->adev;
837 	struct amdgpu_job *job;
838 	struct amdgpu_ib *ib;
839 	struct dma_fence *f = NULL;
840 	uint32_t *ib_checksum = NULL;
841 	uint64_t addr;
842 	int i, r;
843 
844 	if (adev->vcn.using_unified_queue)
845 		ib_size_dw += 8;
846 
847 	r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL,
848 				     ib_size_dw * 4, AMDGPU_IB_POOL_DIRECT,
849 				     &job);
850 	if (r)
851 		return r;
852 
853 	ib = &job->ibs[0];
854 	addr = AMDGPU_GPU_PAGE_ALIGN(ib_msg->gpu_addr);
855 
856 	ib->length_dw = 0;
857 
858 	if (adev->vcn.using_unified_queue)
859 		ib_checksum = amdgpu_vcn_unified_ring_ib_header(ib, 0x11, true);
860 
861 	ib->ptr[ib->length_dw++] = 0x00000018;
862 	ib->ptr[ib->length_dw++] = 0x00000001; /* session info */
863 	ib->ptr[ib->length_dw++] = handle;
864 	ib->ptr[ib->length_dw++] = upper_32_bits(addr);
865 	ib->ptr[ib->length_dw++] = addr;
866 	ib->ptr[ib->length_dw++] = 0x0000000b;
867 
868 	ib->ptr[ib->length_dw++] = 0x00000014;
869 	ib->ptr[ib->length_dw++] = 0x00000002; /* task info */
870 	ib->ptr[ib->length_dw++] = 0x0000001c;
871 	ib->ptr[ib->length_dw++] = 0x00000000;
872 	ib->ptr[ib->length_dw++] = 0x00000000;
873 
874 	ib->ptr[ib->length_dw++] = 0x00000008;
875 	ib->ptr[ib->length_dw++] = 0x08000001; /* op initialize */
876 
877 	for (i = ib->length_dw; i < ib_size_dw; ++i)
878 		ib->ptr[i] = 0x0;
879 
880 	if (adev->vcn.using_unified_queue)
881 		amdgpu_vcn_unified_ring_ib_checksum(&ib_checksum, 0x11);
882 
883 	r = amdgpu_job_submit_direct(job, ring, &f);
884 	if (r)
885 		goto err;
886 
887 	if (fence)
888 		*fence = dma_fence_get(f);
889 	dma_fence_put(f);
890 
891 	return 0;
892 
893 err:
894 	amdgpu_job_free(job);
895 	return r;
896 }
897 
898 static int amdgpu_vcn_enc_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
899 					  struct amdgpu_ib *ib_msg,
900 					  struct dma_fence **fence)
901 {
902 	unsigned int ib_size_dw = 16;
903 	struct amdgpu_device *adev = ring->adev;
904 	struct amdgpu_job *job;
905 	struct amdgpu_ib *ib;
906 	struct dma_fence *f = NULL;
907 	uint32_t *ib_checksum = NULL;
908 	uint64_t addr;
909 	int i, r;
910 
911 	if (adev->vcn.using_unified_queue)
912 		ib_size_dw += 8;
913 
914 	r = amdgpu_job_alloc_with_ib(ring->adev, NULL, NULL,
915 				     ib_size_dw * 4, AMDGPU_IB_POOL_DIRECT,
916 				     &job);
917 	if (r)
918 		return r;
919 
920 	ib = &job->ibs[0];
921 	addr = AMDGPU_GPU_PAGE_ALIGN(ib_msg->gpu_addr);
922 
923 	ib->length_dw = 0;
924 
925 	if (adev->vcn.using_unified_queue)
926 		ib_checksum = amdgpu_vcn_unified_ring_ib_header(ib, 0x11, true);
927 
928 	ib->ptr[ib->length_dw++] = 0x00000018;
929 	ib->ptr[ib->length_dw++] = 0x00000001;
930 	ib->ptr[ib->length_dw++] = handle;
931 	ib->ptr[ib->length_dw++] = upper_32_bits(addr);
932 	ib->ptr[ib->length_dw++] = addr;
933 	ib->ptr[ib->length_dw++] = 0x0000000b;
934 
935 	ib->ptr[ib->length_dw++] = 0x00000014;
936 	ib->ptr[ib->length_dw++] = 0x00000002;
937 	ib->ptr[ib->length_dw++] = 0x0000001c;
938 	ib->ptr[ib->length_dw++] = 0x00000000;
939 	ib->ptr[ib->length_dw++] = 0x00000000;
940 
941 	ib->ptr[ib->length_dw++] = 0x00000008;
942 	ib->ptr[ib->length_dw++] = 0x08000002; /* op close session */
943 
944 	for (i = ib->length_dw; i < ib_size_dw; ++i)
945 		ib->ptr[i] = 0x0;
946 
947 	if (adev->vcn.using_unified_queue)
948 		amdgpu_vcn_unified_ring_ib_checksum(&ib_checksum, 0x11);
949 
950 	r = amdgpu_job_submit_direct(job, ring, &f);
951 	if (r)
952 		goto err;
953 
954 	if (fence)
955 		*fence = dma_fence_get(f);
956 	dma_fence_put(f);
957 
958 	return 0;
959 
960 err:
961 	amdgpu_job_free(job);
962 	return r;
963 }
964 
965 int amdgpu_vcn_enc_ring_test_ib(struct amdgpu_ring *ring, long timeout)
966 {
967 	struct amdgpu_device *adev = ring->adev;
968 	struct dma_fence *fence = NULL;
969 	struct amdgpu_ib ib;
970 	long r;
971 
972 	memset(&ib, 0, sizeof(ib));
973 	r = amdgpu_ib_get(adev, NULL, (128 << 10) + AMDGPU_GPU_PAGE_SIZE,
974 			AMDGPU_IB_POOL_DIRECT,
975 			&ib);
976 	if (r)
977 		return r;
978 
979 	r = amdgpu_vcn_enc_get_create_msg(ring, 1, &ib, NULL);
980 	if (r)
981 		goto error;
982 
983 	r = amdgpu_vcn_enc_get_destroy_msg(ring, 1, &ib, &fence);
984 	if (r)
985 		goto error;
986 
987 	r = dma_fence_wait_timeout(fence, false, timeout);
988 	if (r == 0)
989 		r = -ETIMEDOUT;
990 	else if (r > 0)
991 		r = 0;
992 
993 error:
994 	amdgpu_ib_free(adev, &ib, fence);
995 	dma_fence_put(fence);
996 
997 	return r;
998 }
999 
1000 int amdgpu_vcn_unified_ring_test_ib(struct amdgpu_ring *ring, long timeout)
1001 {
1002 	struct amdgpu_device *adev = ring->adev;
1003 	long r;
1004 
1005 	if (adev->ip_versions[UVD_HWIP][0] != IP_VERSION(4, 0, 3)) {
1006 		r = amdgpu_vcn_enc_ring_test_ib(ring, timeout);
1007 		if (r)
1008 			goto error;
1009 	}
1010 
1011 	r =  amdgpu_vcn_dec_sw_ring_test_ib(ring, timeout);
1012 
1013 error:
1014 	return r;
1015 }
1016 
1017 enum amdgpu_ring_priority_level amdgpu_vcn_get_enc_ring_prio(int ring)
1018 {
1019 	switch (ring) {
1020 	case 0:
1021 		return AMDGPU_RING_PRIO_0;
1022 	case 1:
1023 		return AMDGPU_RING_PRIO_1;
1024 	case 2:
1025 		return AMDGPU_RING_PRIO_2;
1026 	default:
1027 		return AMDGPU_RING_PRIO_0;
1028 	}
1029 }
1030 
1031 void amdgpu_vcn_setup_ucode(struct amdgpu_device *adev)
1032 {
1033 	int i;
1034 	unsigned int idx;
1035 
1036 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
1037 		const struct common_firmware_header *hdr;
1038 
1039 		hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
1040 
1041 		for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
1042 			if (adev->vcn.harvest_config & (1 << i))
1043 				continue;
1044 			/* currently only support 2 FW instances */
1045 			if (i >= 2) {
1046 				dev_info(adev->dev, "More then 2 VCN FW instances!\n");
1047 				break;
1048 			}
1049 			idx = AMDGPU_UCODE_ID_VCN + i;
1050 			adev->firmware.ucode[idx].ucode_id = idx;
1051 			adev->firmware.ucode[idx].fw = adev->vcn.fw;
1052 			adev->firmware.fw_size +=
1053 				ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
1054 
1055 			if (adev->ip_versions[UVD_HWIP][0] == IP_VERSION(4, 0, 3))
1056 				break;
1057 		}
1058 		dev_info(adev->dev, "Will use PSP to load VCN firmware\n");
1059 	}
1060 }
1061 
1062 /*
1063  * debugfs for mapping vcn firmware log buffer.
1064  */
1065 #if defined(CONFIG_DEBUG_FS)
1066 static ssize_t amdgpu_debugfs_vcn_fwlog_read(struct file *f, char __user *buf,
1067 					     size_t size, loff_t *pos)
1068 {
1069 	struct amdgpu_vcn_inst *vcn;
1070 	void *log_buf;
1071 	volatile struct amdgpu_vcn_fwlog *plog;
1072 	unsigned int read_pos, write_pos, available, i, read_bytes = 0;
1073 	unsigned int read_num[2] = {0};
1074 
1075 	vcn = file_inode(f)->i_private;
1076 	if (!vcn)
1077 		return -ENODEV;
1078 
1079 	if (!vcn->fw_shared.cpu_addr || !amdgpu_vcnfw_log)
1080 		return -EFAULT;
1081 
1082 	log_buf = vcn->fw_shared.cpu_addr + vcn->fw_shared.mem_size;
1083 
1084 	plog = (volatile struct amdgpu_vcn_fwlog *)log_buf;
1085 	read_pos = plog->rptr;
1086 	write_pos = plog->wptr;
1087 
1088 	if (read_pos > AMDGPU_VCNFW_LOG_SIZE || write_pos > AMDGPU_VCNFW_LOG_SIZE)
1089 		return -EFAULT;
1090 
1091 	if (!size || (read_pos == write_pos))
1092 		return 0;
1093 
1094 	if (write_pos > read_pos) {
1095 		available = write_pos - read_pos;
1096 		read_num[0] = min(size, (size_t)available);
1097 	} else {
1098 		read_num[0] = AMDGPU_VCNFW_LOG_SIZE - read_pos;
1099 		available = read_num[0] + write_pos - plog->header_size;
1100 		if (size > available)
1101 			read_num[1] = write_pos - plog->header_size;
1102 		else if (size > read_num[0])
1103 			read_num[1] = size - read_num[0];
1104 		else
1105 			read_num[0] = size;
1106 	}
1107 
1108 	for (i = 0; i < 2; i++) {
1109 		if (read_num[i]) {
1110 			if (read_pos == AMDGPU_VCNFW_LOG_SIZE)
1111 				read_pos = plog->header_size;
1112 			if (read_num[i] == copy_to_user((buf + read_bytes),
1113 							(log_buf + read_pos), read_num[i]))
1114 				return -EFAULT;
1115 
1116 			read_bytes += read_num[i];
1117 			read_pos += read_num[i];
1118 		}
1119 	}
1120 
1121 	plog->rptr = read_pos;
1122 	*pos += read_bytes;
1123 	return read_bytes;
1124 }
1125 
1126 static const struct file_operations amdgpu_debugfs_vcnfwlog_fops = {
1127 	.owner = THIS_MODULE,
1128 	.read = amdgpu_debugfs_vcn_fwlog_read,
1129 	.llseek = default_llseek
1130 };
1131 #endif
1132 
1133 void amdgpu_debugfs_vcn_fwlog_init(struct amdgpu_device *adev, uint8_t i,
1134 				   struct amdgpu_vcn_inst *vcn)
1135 {
1136 #if defined(CONFIG_DEBUG_FS)
1137 	struct drm_minor *minor = adev_to_drm(adev)->primary;
1138 	struct dentry *root = minor->debugfs_root;
1139 	char name[32];
1140 
1141 	sprintf(name, "amdgpu_vcn_%d_fwlog", i);
1142 	debugfs_create_file_size(name, S_IFREG | 0444, root, vcn,
1143 				 &amdgpu_debugfs_vcnfwlog_fops,
1144 				 AMDGPU_VCNFW_LOG_SIZE);
1145 #endif
1146 }
1147 
1148 void amdgpu_vcn_fwlog_init(struct amdgpu_vcn_inst *vcn)
1149 {
1150 #if defined(CONFIG_DEBUG_FS)
1151 	volatile uint32_t *flag = vcn->fw_shared.cpu_addr;
1152 	void *fw_log_cpu_addr = vcn->fw_shared.cpu_addr + vcn->fw_shared.mem_size;
1153 	uint64_t fw_log_gpu_addr = vcn->fw_shared.gpu_addr + vcn->fw_shared.mem_size;
1154 	volatile struct amdgpu_vcn_fwlog *log_buf = fw_log_cpu_addr;
1155 	volatile struct amdgpu_fw_shared_fw_logging *fw_log = vcn->fw_shared.cpu_addr
1156 							 + vcn->fw_shared.log_offset;
1157 	*flag |= cpu_to_le32(AMDGPU_VCN_FW_LOGGING_FLAG);
1158 	fw_log->is_enabled = 1;
1159 	fw_log->addr_lo = cpu_to_le32(fw_log_gpu_addr & 0xFFFFFFFF);
1160 	fw_log->addr_hi = cpu_to_le32(fw_log_gpu_addr >> 32);
1161 	fw_log->size = cpu_to_le32(AMDGPU_VCNFW_LOG_SIZE);
1162 
1163 	log_buf->header_size = sizeof(struct amdgpu_vcn_fwlog);
1164 	log_buf->buffer_size = AMDGPU_VCNFW_LOG_SIZE;
1165 	log_buf->rptr = log_buf->header_size;
1166 	log_buf->wptr = log_buf->header_size;
1167 	log_buf->wrapped = 0;
1168 #endif
1169 }
1170 
1171 int amdgpu_vcn_process_poison_irq(struct amdgpu_device *adev,
1172 				struct amdgpu_irq_src *source,
1173 				struct amdgpu_iv_entry *entry)
1174 {
1175 	struct ras_common_if *ras_if = adev->vcn.ras_if;
1176 	struct ras_dispatch_if ih_data = {
1177 		.entry = entry,
1178 	};
1179 
1180 	if (!ras_if)
1181 		return 0;
1182 
1183 	if (!amdgpu_sriov_vf(adev)) {
1184 		ih_data.head = *ras_if;
1185 		amdgpu_ras_interrupt_dispatch(adev, &ih_data);
1186 	} else {
1187 		if (adev->virt.ops && adev->virt.ops->ras_poison_handler)
1188 			adev->virt.ops->ras_poison_handler(adev);
1189 		else
1190 			dev_warn(adev->dev,
1191 				"No ras_poison_handler interface in SRIOV for VCN!\n");
1192 	}
1193 
1194 	return 0;
1195 }
1196 
1197 int amdgpu_vcn_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block)
1198 {
1199 	int r, i;
1200 
1201 	r = amdgpu_ras_block_late_init(adev, ras_block);
1202 	if (r)
1203 		return r;
1204 
1205 	if (amdgpu_ras_is_supported(adev, ras_block->block)) {
1206 		for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
1207 			if (adev->vcn.harvest_config & (1 << i) ||
1208 			    !adev->vcn.inst[i].ras_poison_irq.funcs)
1209 				continue;
1210 
1211 			r = amdgpu_irq_get(adev, &adev->vcn.inst[i].ras_poison_irq, 0);
1212 			if (r)
1213 				goto late_fini;
1214 		}
1215 	}
1216 	return 0;
1217 
1218 late_fini:
1219 	amdgpu_ras_block_late_fini(adev, ras_block);
1220 	return r;
1221 }
1222 
1223 int amdgpu_vcn_ras_sw_init(struct amdgpu_device *adev)
1224 {
1225 	int err;
1226 	struct amdgpu_vcn_ras *ras;
1227 
1228 	if (!adev->vcn.ras)
1229 		return 0;
1230 
1231 	ras = adev->vcn.ras;
1232 	err = amdgpu_ras_register_ras_block(adev, &ras->ras_block);
1233 	if (err) {
1234 		dev_err(adev->dev, "Failed to register vcn ras block!\n");
1235 		return err;
1236 	}
1237 
1238 	strcpy(ras->ras_block.ras_comm.name, "vcn");
1239 	ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__VCN;
1240 	ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__POISON;
1241 	adev->vcn.ras_if = &ras->ras_block.ras_comm;
1242 
1243 	if (!ras->ras_block.ras_late_init)
1244 		ras->ras_block.ras_late_init = amdgpu_vcn_ras_late_init;
1245 
1246 	return 0;
1247 }
1248 
1249 int amdgpu_vcn_psp_update_sram(struct amdgpu_device *adev, int inst_idx,
1250 			       enum AMDGPU_UCODE_ID ucode_id)
1251 {
1252 	struct amdgpu_firmware_info ucode = {
1253 		.ucode_id = (ucode_id ? ucode_id :
1254 			    (inst_idx ? AMDGPU_UCODE_ID_VCN1_RAM :
1255 					AMDGPU_UCODE_ID_VCN0_RAM)),
1256 		.mc_addr = adev->vcn.inst[inst_idx].dpg_sram_gpu_addr,
1257 		.ucode_size = ((uintptr_t)adev->vcn.inst[inst_idx].dpg_sram_curr_addr -
1258 			      (uintptr_t)adev->vcn.inst[inst_idx].dpg_sram_cpu_addr),
1259 	};
1260 
1261 	return psp_execute_ip_fw_load(&adev->psp, &ucode);
1262 }
1263