1 /*
2  * Copyright 2008 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  * Copyright 2009 Jerome Glisse.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: Dave Airlie
25  *          Alex Deucher
26  *          Jerome Glisse
27  */
28 
29 #include "amdgpu.h"
30 #include <drm/drm_debugfs.h>
31 #include <drm/amdgpu_drm.h>
32 #include "amdgpu_uvd.h"
33 #include "amdgpu_vce.h"
34 #include "atom.h"
35 
36 #include <linux/vga_switcheroo.h>
37 #include <linux/slab.h>
38 #include <linux/uaccess.h>
39 #include <linux/pci.h>
40 #include <linux/pm_runtime.h>
41 #include "amdgpu_amdkfd.h"
42 #include "amdgpu_gem.h"
43 #include "amdgpu_display.h"
44 #include "amdgpu_ras.h"
45 
46 void amdgpu_unregister_gpu_instance(struct amdgpu_device *adev)
47 {
48 	struct amdgpu_gpu_instance *gpu_instance;
49 	int i;
50 
51 	mutex_lock(&mgpu_info.mutex);
52 
53 	for (i = 0; i < mgpu_info.num_gpu; i++) {
54 		gpu_instance = &(mgpu_info.gpu_ins[i]);
55 		if (gpu_instance->adev == adev) {
56 			mgpu_info.gpu_ins[i] =
57 				mgpu_info.gpu_ins[mgpu_info.num_gpu - 1];
58 			mgpu_info.num_gpu--;
59 			if (adev->flags & AMD_IS_APU)
60 				mgpu_info.num_apu--;
61 			else
62 				mgpu_info.num_dgpu--;
63 			break;
64 		}
65 	}
66 
67 	mutex_unlock(&mgpu_info.mutex);
68 }
69 
70 /**
71  * amdgpu_driver_unload_kms - Main unload function for KMS.
72  *
73  * @dev: drm dev pointer
74  *
75  * This is the main unload function for KMS (all asics).
76  * Returns 0 on success.
77  */
78 void amdgpu_driver_unload_kms(struct drm_device *dev)
79 {
80 	struct amdgpu_device *adev = drm_to_adev(dev);
81 
82 	if (adev == NULL)
83 		return;
84 
85 	amdgpu_unregister_gpu_instance(adev);
86 
87 	if (adev->rmmio == NULL)
88 		return;
89 
90 	if (adev->runpm) {
91 		pm_runtime_get_sync(dev->dev);
92 		pm_runtime_forbid(dev->dev);
93 	}
94 
95 	amdgpu_acpi_fini(adev);
96 	amdgpu_device_fini(adev);
97 }
98 
99 void amdgpu_register_gpu_instance(struct amdgpu_device *adev)
100 {
101 	struct amdgpu_gpu_instance *gpu_instance;
102 
103 	mutex_lock(&mgpu_info.mutex);
104 
105 	if (mgpu_info.num_gpu >= MAX_GPU_INSTANCE) {
106 		DRM_ERROR("Cannot register more gpu instance\n");
107 		mutex_unlock(&mgpu_info.mutex);
108 		return;
109 	}
110 
111 	gpu_instance = &(mgpu_info.gpu_ins[mgpu_info.num_gpu]);
112 	gpu_instance->adev = adev;
113 	gpu_instance->mgpu_fan_enabled = 0;
114 
115 	mgpu_info.num_gpu++;
116 	if (adev->flags & AMD_IS_APU)
117 		mgpu_info.num_apu++;
118 	else
119 		mgpu_info.num_dgpu++;
120 
121 	mutex_unlock(&mgpu_info.mutex);
122 }
123 
124 /**
125  * amdgpu_driver_load_kms - Main load function for KMS.
126  *
127  * @adev: pointer to struct amdgpu_device
128  * @flags: device flags
129  *
130  * This is the main load function for KMS (all asics).
131  * Returns 0 on success, error on failure.
132  */
133 int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
134 {
135 	struct drm_device *dev;
136 	struct pci_dev *parent;
137 	int r, acpi_status;
138 
139 	dev = adev_to_drm(adev);
140 
141 	if (amdgpu_has_atpx() &&
142 	    (amdgpu_is_atpx_hybrid() ||
143 	     amdgpu_has_atpx_dgpu_power_cntl()) &&
144 	    ((flags & AMD_IS_APU) == 0) &&
145 	    !pci_is_thunderbolt_attached(to_pci_dev(dev->dev)))
146 		flags |= AMD_IS_PX;
147 
148 	parent = pci_upstream_bridge(adev->pdev);
149 	adev->has_pr3 = parent ? pci_pr3_present(parent) : false;
150 
151 	/* amdgpu_device_init should report only fatal error
152 	 * like memory allocation failure or iomapping failure,
153 	 * or memory manager initialization failure, it must
154 	 * properly initialize the GPU MC controller and permit
155 	 * VRAM allocation
156 	 */
157 	r = amdgpu_device_init(adev, flags);
158 	if (r) {
159 		dev_err(dev->dev, "Fatal error during GPU init\n");
160 		goto out;
161 	}
162 
163 	if (amdgpu_device_supports_atpx(dev) &&
164 	    (amdgpu_runtime_pm != 0)) { /* enable runpm by default for atpx */
165 		adev->runpm = true;
166 		dev_info(adev->dev, "Using ATPX for runtime pm\n");
167 	} else if (amdgpu_device_supports_boco(dev) &&
168 		   (amdgpu_runtime_pm != 0)) { /* enable runpm by default for boco */
169 		adev->runpm = true;
170 		dev_info(adev->dev, "Using BOCO for runtime pm\n");
171 	} else if (amdgpu_device_supports_baco(dev) &&
172 		   (amdgpu_runtime_pm != 0)) {
173 		switch (adev->asic_type) {
174 		case CHIP_VEGA20:
175 		case CHIP_ARCTURUS:
176 			/* enable runpm if runpm=1 */
177 			if (amdgpu_runtime_pm > 0)
178 				adev->runpm = true;
179 			break;
180 		case CHIP_VEGA10:
181 			/* turn runpm on if noretry=0 */
182 			if (!adev->gmc.noretry)
183 				adev->runpm = true;
184 			break;
185 		default:
186 			/* enable runpm on CI+ */
187 			adev->runpm = true;
188 			break;
189 		}
190 		if (adev->runpm)
191 			dev_info(adev->dev, "Using BACO for runtime pm\n");
192 	}
193 
194 	/* Call ACPI methods: require modeset init
195 	 * but failure is not fatal
196 	 */
197 
198 	acpi_status = amdgpu_acpi_init(adev);
199 	if (acpi_status)
200 		dev_dbg(dev->dev, "Error during ACPI methods call\n");
201 
202 	if (adev->runpm) {
203 		/* only need to skip on ATPX */
204 		if (amdgpu_device_supports_atpx(dev) &&
205 		    !amdgpu_is_atpx_hybrid())
206 			dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
207 		pm_runtime_use_autosuspend(dev->dev);
208 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
209 		pm_runtime_allow(dev->dev);
210 		pm_runtime_mark_last_busy(dev->dev);
211 		pm_runtime_put_autosuspend(dev->dev);
212 	}
213 
214 out:
215 	if (r) {
216 		/* balance pm_runtime_get_sync in amdgpu_driver_unload_kms */
217 		if (adev->rmmio && adev->runpm)
218 			pm_runtime_put_noidle(dev->dev);
219 		amdgpu_driver_unload_kms(dev);
220 	}
221 
222 	return r;
223 }
224 
225 static int amdgpu_firmware_info(struct drm_amdgpu_info_firmware *fw_info,
226 				struct drm_amdgpu_query_fw *query_fw,
227 				struct amdgpu_device *adev)
228 {
229 	switch (query_fw->fw_type) {
230 	case AMDGPU_INFO_FW_VCE:
231 		fw_info->ver = adev->vce.fw_version;
232 		fw_info->feature = adev->vce.fb_version;
233 		break;
234 	case AMDGPU_INFO_FW_UVD:
235 		fw_info->ver = adev->uvd.fw_version;
236 		fw_info->feature = 0;
237 		break;
238 	case AMDGPU_INFO_FW_VCN:
239 		fw_info->ver = adev->vcn.fw_version;
240 		fw_info->feature = 0;
241 		break;
242 	case AMDGPU_INFO_FW_GMC:
243 		fw_info->ver = adev->gmc.fw_version;
244 		fw_info->feature = 0;
245 		break;
246 	case AMDGPU_INFO_FW_GFX_ME:
247 		fw_info->ver = adev->gfx.me_fw_version;
248 		fw_info->feature = adev->gfx.me_feature_version;
249 		break;
250 	case AMDGPU_INFO_FW_GFX_PFP:
251 		fw_info->ver = adev->gfx.pfp_fw_version;
252 		fw_info->feature = adev->gfx.pfp_feature_version;
253 		break;
254 	case AMDGPU_INFO_FW_GFX_CE:
255 		fw_info->ver = adev->gfx.ce_fw_version;
256 		fw_info->feature = adev->gfx.ce_feature_version;
257 		break;
258 	case AMDGPU_INFO_FW_GFX_RLC:
259 		fw_info->ver = adev->gfx.rlc_fw_version;
260 		fw_info->feature = adev->gfx.rlc_feature_version;
261 		break;
262 	case AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_CNTL:
263 		fw_info->ver = adev->gfx.rlc_srlc_fw_version;
264 		fw_info->feature = adev->gfx.rlc_srlc_feature_version;
265 		break;
266 	case AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_GPM_MEM:
267 		fw_info->ver = adev->gfx.rlc_srlg_fw_version;
268 		fw_info->feature = adev->gfx.rlc_srlg_feature_version;
269 		break;
270 	case AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_SRM_MEM:
271 		fw_info->ver = adev->gfx.rlc_srls_fw_version;
272 		fw_info->feature = adev->gfx.rlc_srls_feature_version;
273 		break;
274 	case AMDGPU_INFO_FW_GFX_MEC:
275 		if (query_fw->index == 0) {
276 			fw_info->ver = adev->gfx.mec_fw_version;
277 			fw_info->feature = adev->gfx.mec_feature_version;
278 		} else if (query_fw->index == 1) {
279 			fw_info->ver = adev->gfx.mec2_fw_version;
280 			fw_info->feature = adev->gfx.mec2_feature_version;
281 		} else
282 			return -EINVAL;
283 		break;
284 	case AMDGPU_INFO_FW_SMC:
285 		fw_info->ver = adev->pm.fw_version;
286 		fw_info->feature = 0;
287 		break;
288 	case AMDGPU_INFO_FW_TA:
289 		switch (query_fw->index) {
290 		case 0:
291 			fw_info->ver = adev->psp.ta_fw_version;
292 			fw_info->feature = adev->psp.ta_xgmi_ucode_version;
293 			break;
294 		case 1:
295 			fw_info->ver = adev->psp.ta_fw_version;
296 			fw_info->feature = adev->psp.ta_ras_ucode_version;
297 			break;
298 		case 2:
299 			fw_info->ver = adev->psp.ta_fw_version;
300 			fw_info->feature = adev->psp.ta_hdcp_ucode_version;
301 			break;
302 		case 3:
303 			fw_info->ver = adev->psp.ta_fw_version;
304 			fw_info->feature = adev->psp.ta_dtm_ucode_version;
305 			break;
306 		default:
307 			return -EINVAL;
308 		}
309 		break;
310 	case AMDGPU_INFO_FW_SDMA:
311 		if (query_fw->index >= adev->sdma.num_instances)
312 			return -EINVAL;
313 		fw_info->ver = adev->sdma.instance[query_fw->index].fw_version;
314 		fw_info->feature = adev->sdma.instance[query_fw->index].feature_version;
315 		break;
316 	case AMDGPU_INFO_FW_SOS:
317 		fw_info->ver = adev->psp.sos_fw_version;
318 		fw_info->feature = adev->psp.sos_feature_version;
319 		break;
320 	case AMDGPU_INFO_FW_ASD:
321 		fw_info->ver = adev->psp.asd_fw_version;
322 		fw_info->feature = adev->psp.asd_feature_version;
323 		break;
324 	case AMDGPU_INFO_FW_DMCU:
325 		fw_info->ver = adev->dm.dmcu_fw_version;
326 		fw_info->feature = 0;
327 		break;
328 	case AMDGPU_INFO_FW_DMCUB:
329 		fw_info->ver = adev->dm.dmcub_fw_version;
330 		fw_info->feature = 0;
331 		break;
332 	case AMDGPU_INFO_FW_TOC:
333 		fw_info->ver = adev->psp.toc_fw_version;
334 		fw_info->feature = adev->psp.toc_feature_version;
335 		break;
336 	default:
337 		return -EINVAL;
338 	}
339 	return 0;
340 }
341 
342 static int amdgpu_hw_ip_info(struct amdgpu_device *adev,
343 			     struct drm_amdgpu_info *info,
344 			     struct drm_amdgpu_info_hw_ip *result)
345 {
346 	uint32_t ib_start_alignment = 0;
347 	uint32_t ib_size_alignment = 0;
348 	enum amd_ip_block_type type;
349 	unsigned int num_rings = 0;
350 	unsigned int i, j;
351 
352 	if (info->query_hw_ip.ip_instance >= AMDGPU_HW_IP_INSTANCE_MAX_COUNT)
353 		return -EINVAL;
354 
355 	switch (info->query_hw_ip.type) {
356 	case AMDGPU_HW_IP_GFX:
357 		type = AMD_IP_BLOCK_TYPE_GFX;
358 		for (i = 0; i < adev->gfx.num_gfx_rings; i++)
359 			if (adev->gfx.gfx_ring[i].sched.ready)
360 				++num_rings;
361 		ib_start_alignment = 32;
362 		ib_size_alignment = 32;
363 		break;
364 	case AMDGPU_HW_IP_COMPUTE:
365 		type = AMD_IP_BLOCK_TYPE_GFX;
366 		for (i = 0; i < adev->gfx.num_compute_rings; i++)
367 			if (adev->gfx.compute_ring[i].sched.ready)
368 				++num_rings;
369 		ib_start_alignment = 32;
370 		ib_size_alignment = 32;
371 		break;
372 	case AMDGPU_HW_IP_DMA:
373 		type = AMD_IP_BLOCK_TYPE_SDMA;
374 		for (i = 0; i < adev->sdma.num_instances; i++)
375 			if (adev->sdma.instance[i].ring.sched.ready)
376 				++num_rings;
377 		ib_start_alignment = 256;
378 		ib_size_alignment = 4;
379 		break;
380 	case AMDGPU_HW_IP_UVD:
381 		type = AMD_IP_BLOCK_TYPE_UVD;
382 		for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
383 			if (adev->uvd.harvest_config & (1 << i))
384 				continue;
385 
386 			if (adev->uvd.inst[i].ring.sched.ready)
387 				++num_rings;
388 		}
389 		ib_start_alignment = 64;
390 		ib_size_alignment = 64;
391 		break;
392 	case AMDGPU_HW_IP_VCE:
393 		type = AMD_IP_BLOCK_TYPE_VCE;
394 		for (i = 0; i < adev->vce.num_rings; i++)
395 			if (adev->vce.ring[i].sched.ready)
396 				++num_rings;
397 		ib_start_alignment = 4;
398 		ib_size_alignment = 1;
399 		break;
400 	case AMDGPU_HW_IP_UVD_ENC:
401 		type = AMD_IP_BLOCK_TYPE_UVD;
402 		for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
403 			if (adev->uvd.harvest_config & (1 << i))
404 				continue;
405 
406 			for (j = 0; j < adev->uvd.num_enc_rings; j++)
407 				if (adev->uvd.inst[i].ring_enc[j].sched.ready)
408 					++num_rings;
409 		}
410 		ib_start_alignment = 64;
411 		ib_size_alignment = 64;
412 		break;
413 	case AMDGPU_HW_IP_VCN_DEC:
414 		type = AMD_IP_BLOCK_TYPE_VCN;
415 		for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
416 			if (adev->uvd.harvest_config & (1 << i))
417 				continue;
418 
419 			if (adev->vcn.inst[i].ring_dec.sched.ready)
420 				++num_rings;
421 		}
422 		ib_start_alignment = 16;
423 		ib_size_alignment = 16;
424 		break;
425 	case AMDGPU_HW_IP_VCN_ENC:
426 		type = AMD_IP_BLOCK_TYPE_VCN;
427 		for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
428 			if (adev->uvd.harvest_config & (1 << i))
429 				continue;
430 
431 			for (j = 0; j < adev->vcn.num_enc_rings; j++)
432 				if (adev->vcn.inst[i].ring_enc[j].sched.ready)
433 					++num_rings;
434 		}
435 		ib_start_alignment = 64;
436 		ib_size_alignment = 1;
437 		break;
438 	case AMDGPU_HW_IP_VCN_JPEG:
439 		type = (amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_JPEG)) ?
440 			AMD_IP_BLOCK_TYPE_JPEG : AMD_IP_BLOCK_TYPE_VCN;
441 
442 		for (i = 0; i < adev->jpeg.num_jpeg_inst; i++) {
443 			if (adev->jpeg.harvest_config & (1 << i))
444 				continue;
445 
446 			if (adev->jpeg.inst[i].ring_dec.sched.ready)
447 				++num_rings;
448 		}
449 		ib_start_alignment = 16;
450 		ib_size_alignment = 16;
451 		break;
452 	default:
453 		return -EINVAL;
454 	}
455 
456 	for (i = 0; i < adev->num_ip_blocks; i++)
457 		if (adev->ip_blocks[i].version->type == type &&
458 		    adev->ip_blocks[i].status.valid)
459 			break;
460 
461 	if (i == adev->num_ip_blocks)
462 		return 0;
463 
464 	num_rings = min(amdgpu_ctx_num_entities[info->query_hw_ip.type],
465 			num_rings);
466 
467 	result->hw_ip_version_major = adev->ip_blocks[i].version->major;
468 	result->hw_ip_version_minor = adev->ip_blocks[i].version->minor;
469 	result->capabilities_flags = 0;
470 	result->available_rings = (1 << num_rings) - 1;
471 	result->ib_start_alignment = ib_start_alignment;
472 	result->ib_size_alignment = ib_size_alignment;
473 	return 0;
474 }
475 
476 /*
477  * Userspace get information ioctl
478  */
479 /**
480  * amdgpu_info_ioctl - answer a device specific request.
481  *
482  * @dev: drm device pointer
483  * @data: request object
484  * @filp: drm filp
485  *
486  * This function is used to pass device specific parameters to the userspace
487  * drivers.  Examples include: pci device id, pipeline parms, tiling params,
488  * etc. (all asics).
489  * Returns 0 on success, -EINVAL on failure.
490  */
491 int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
492 {
493 	struct amdgpu_device *adev = drm_to_adev(dev);
494 	struct drm_amdgpu_info *info = data;
495 	struct amdgpu_mode_info *minfo = &adev->mode_info;
496 	void __user *out = (void __user *)(uintptr_t)info->return_pointer;
497 	uint32_t size = info->return_size;
498 	struct drm_crtc *crtc;
499 	uint32_t ui32 = 0;
500 	uint64_t ui64 = 0;
501 	int i, found;
502 	int ui32_size = sizeof(ui32);
503 
504 	if (!info->return_size || !info->return_pointer)
505 		return -EINVAL;
506 
507 	switch (info->query) {
508 	case AMDGPU_INFO_ACCEL_WORKING:
509 		ui32 = adev->accel_working;
510 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
511 	case AMDGPU_INFO_CRTC_FROM_ID:
512 		for (i = 0, found = 0; i < adev->mode_info.num_crtc; i++) {
513 			crtc = (struct drm_crtc *)minfo->crtcs[i];
514 			if (crtc && crtc->base.id == info->mode_crtc.id) {
515 				struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
516 				ui32 = amdgpu_crtc->crtc_id;
517 				found = 1;
518 				break;
519 			}
520 		}
521 		if (!found) {
522 			DRM_DEBUG_KMS("unknown crtc id %d\n", info->mode_crtc.id);
523 			return -EINVAL;
524 		}
525 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
526 	case AMDGPU_INFO_HW_IP_INFO: {
527 		struct drm_amdgpu_info_hw_ip ip = {};
528 		int ret;
529 
530 		ret = amdgpu_hw_ip_info(adev, info, &ip);
531 		if (ret)
532 			return ret;
533 
534 		ret = copy_to_user(out, &ip, min((size_t)size, sizeof(ip)));
535 		return ret ? -EFAULT : 0;
536 	}
537 	case AMDGPU_INFO_HW_IP_COUNT: {
538 		enum amd_ip_block_type type;
539 		uint32_t count = 0;
540 
541 		switch (info->query_hw_ip.type) {
542 		case AMDGPU_HW_IP_GFX:
543 			type = AMD_IP_BLOCK_TYPE_GFX;
544 			break;
545 		case AMDGPU_HW_IP_COMPUTE:
546 			type = AMD_IP_BLOCK_TYPE_GFX;
547 			break;
548 		case AMDGPU_HW_IP_DMA:
549 			type = AMD_IP_BLOCK_TYPE_SDMA;
550 			break;
551 		case AMDGPU_HW_IP_UVD:
552 			type = AMD_IP_BLOCK_TYPE_UVD;
553 			break;
554 		case AMDGPU_HW_IP_VCE:
555 			type = AMD_IP_BLOCK_TYPE_VCE;
556 			break;
557 		case AMDGPU_HW_IP_UVD_ENC:
558 			type = AMD_IP_BLOCK_TYPE_UVD;
559 			break;
560 		case AMDGPU_HW_IP_VCN_DEC:
561 		case AMDGPU_HW_IP_VCN_ENC:
562 			type = AMD_IP_BLOCK_TYPE_VCN;
563 			break;
564 		case AMDGPU_HW_IP_VCN_JPEG:
565 			type = (amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_JPEG)) ?
566 				AMD_IP_BLOCK_TYPE_JPEG : AMD_IP_BLOCK_TYPE_VCN;
567 			break;
568 		default:
569 			return -EINVAL;
570 		}
571 
572 		for (i = 0; i < adev->num_ip_blocks; i++)
573 			if (adev->ip_blocks[i].version->type == type &&
574 			    adev->ip_blocks[i].status.valid &&
575 			    count < AMDGPU_HW_IP_INSTANCE_MAX_COUNT)
576 				count++;
577 
578 		return copy_to_user(out, &count, min(size, 4u)) ? -EFAULT : 0;
579 	}
580 	case AMDGPU_INFO_TIMESTAMP:
581 		ui64 = amdgpu_gfx_get_gpu_clock_counter(adev);
582 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
583 	case AMDGPU_INFO_FW_VERSION: {
584 		struct drm_amdgpu_info_firmware fw_info;
585 		int ret;
586 
587 		/* We only support one instance of each IP block right now. */
588 		if (info->query_fw.ip_instance != 0)
589 			return -EINVAL;
590 
591 		ret = amdgpu_firmware_info(&fw_info, &info->query_fw, adev);
592 		if (ret)
593 			return ret;
594 
595 		return copy_to_user(out, &fw_info,
596 				    min((size_t)size, sizeof(fw_info))) ? -EFAULT : 0;
597 	}
598 	case AMDGPU_INFO_NUM_BYTES_MOVED:
599 		ui64 = atomic64_read(&adev->num_bytes_moved);
600 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
601 	case AMDGPU_INFO_NUM_EVICTIONS:
602 		ui64 = atomic64_read(&adev->num_evictions);
603 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
604 	case AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS:
605 		ui64 = atomic64_read(&adev->num_vram_cpu_page_faults);
606 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
607 	case AMDGPU_INFO_VRAM_USAGE:
608 		ui64 = amdgpu_vram_mgr_usage(ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM));
609 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
610 	case AMDGPU_INFO_VIS_VRAM_USAGE:
611 		ui64 = amdgpu_vram_mgr_vis_usage(ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM));
612 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
613 	case AMDGPU_INFO_GTT_USAGE:
614 		ui64 = amdgpu_gtt_mgr_usage(ttm_manager_type(&adev->mman.bdev, TTM_PL_TT));
615 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
616 	case AMDGPU_INFO_GDS_CONFIG: {
617 		struct drm_amdgpu_info_gds gds_info;
618 
619 		memset(&gds_info, 0, sizeof(gds_info));
620 		gds_info.compute_partition_size = adev->gds.gds_size;
621 		gds_info.gds_total_size = adev->gds.gds_size;
622 		gds_info.gws_per_compute_partition = adev->gds.gws_size;
623 		gds_info.oa_per_compute_partition = adev->gds.oa_size;
624 		return copy_to_user(out, &gds_info,
625 				    min((size_t)size, sizeof(gds_info))) ? -EFAULT : 0;
626 	}
627 	case AMDGPU_INFO_VRAM_GTT: {
628 		struct drm_amdgpu_info_vram_gtt vram_gtt;
629 
630 		vram_gtt.vram_size = adev->gmc.real_vram_size -
631 			atomic64_read(&adev->vram_pin_size) -
632 			AMDGPU_VM_RESERVED_VRAM;
633 		vram_gtt.vram_cpu_accessible_size =
634 			min(adev->gmc.visible_vram_size -
635 			    atomic64_read(&adev->visible_pin_size),
636 			    vram_gtt.vram_size);
637 		vram_gtt.gtt_size = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT)->size;
638 		vram_gtt.gtt_size *= PAGE_SIZE;
639 		vram_gtt.gtt_size -= atomic64_read(&adev->gart_pin_size);
640 		return copy_to_user(out, &vram_gtt,
641 				    min((size_t)size, sizeof(vram_gtt))) ? -EFAULT : 0;
642 	}
643 	case AMDGPU_INFO_MEMORY: {
644 		struct drm_amdgpu_memory_info mem;
645 		struct ttm_resource_manager *vram_man =
646 			ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
647 		struct ttm_resource_manager *gtt_man =
648 			ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
649 		memset(&mem, 0, sizeof(mem));
650 		mem.vram.total_heap_size = adev->gmc.real_vram_size;
651 		mem.vram.usable_heap_size = adev->gmc.real_vram_size -
652 			atomic64_read(&adev->vram_pin_size) -
653 			AMDGPU_VM_RESERVED_VRAM;
654 		mem.vram.heap_usage =
655 			amdgpu_vram_mgr_usage(vram_man);
656 		mem.vram.max_allocation = mem.vram.usable_heap_size * 3 / 4;
657 
658 		mem.cpu_accessible_vram.total_heap_size =
659 			adev->gmc.visible_vram_size;
660 		mem.cpu_accessible_vram.usable_heap_size =
661 			min(adev->gmc.visible_vram_size -
662 			    atomic64_read(&adev->visible_pin_size),
663 			    mem.vram.usable_heap_size);
664 		mem.cpu_accessible_vram.heap_usage =
665 			amdgpu_vram_mgr_vis_usage(vram_man);
666 		mem.cpu_accessible_vram.max_allocation =
667 			mem.cpu_accessible_vram.usable_heap_size * 3 / 4;
668 
669 		mem.gtt.total_heap_size = gtt_man->size;
670 		mem.gtt.total_heap_size *= PAGE_SIZE;
671 		mem.gtt.usable_heap_size = mem.gtt.total_heap_size -
672 			atomic64_read(&adev->gart_pin_size);
673 		mem.gtt.heap_usage =
674 			amdgpu_gtt_mgr_usage(gtt_man);
675 		mem.gtt.max_allocation = mem.gtt.usable_heap_size * 3 / 4;
676 
677 		return copy_to_user(out, &mem,
678 				    min((size_t)size, sizeof(mem)))
679 				    ? -EFAULT : 0;
680 	}
681 	case AMDGPU_INFO_READ_MMR_REG: {
682 		unsigned n, alloc_size;
683 		uint32_t *regs;
684 		unsigned se_num = (info->read_mmr_reg.instance >>
685 				   AMDGPU_INFO_MMR_SE_INDEX_SHIFT) &
686 				  AMDGPU_INFO_MMR_SE_INDEX_MASK;
687 		unsigned sh_num = (info->read_mmr_reg.instance >>
688 				   AMDGPU_INFO_MMR_SH_INDEX_SHIFT) &
689 				  AMDGPU_INFO_MMR_SH_INDEX_MASK;
690 
691 		/* set full masks if the userspace set all bits
692 		 * in the bitfields */
693 		if (se_num == AMDGPU_INFO_MMR_SE_INDEX_MASK)
694 			se_num = 0xffffffff;
695 		else if (se_num >= AMDGPU_GFX_MAX_SE)
696 			return -EINVAL;
697 		if (sh_num == AMDGPU_INFO_MMR_SH_INDEX_MASK)
698 			sh_num = 0xffffffff;
699 		else if (sh_num >= AMDGPU_GFX_MAX_SH_PER_SE)
700 			return -EINVAL;
701 
702 		if (info->read_mmr_reg.count > 128)
703 			return -EINVAL;
704 
705 		regs = kmalloc_array(info->read_mmr_reg.count, sizeof(*regs), GFP_KERNEL);
706 		if (!regs)
707 			return -ENOMEM;
708 		alloc_size = info->read_mmr_reg.count * sizeof(*regs);
709 
710 		amdgpu_gfx_off_ctrl(adev, false);
711 		for (i = 0; i < info->read_mmr_reg.count; i++) {
712 			if (amdgpu_asic_read_register(adev, se_num, sh_num,
713 						      info->read_mmr_reg.dword_offset + i,
714 						      &regs[i])) {
715 				DRM_DEBUG_KMS("unallowed offset %#x\n",
716 					      info->read_mmr_reg.dword_offset + i);
717 				kfree(regs);
718 				amdgpu_gfx_off_ctrl(adev, true);
719 				return -EFAULT;
720 			}
721 		}
722 		amdgpu_gfx_off_ctrl(adev, true);
723 		n = copy_to_user(out, regs, min(size, alloc_size));
724 		kfree(regs);
725 		return n ? -EFAULT : 0;
726 	}
727 	case AMDGPU_INFO_DEV_INFO: {
728 		struct drm_amdgpu_info_device *dev_info;
729 		uint64_t vm_size;
730 		int ret;
731 
732 		dev_info = kzalloc(sizeof(*dev_info), GFP_KERNEL);
733 		if (!dev_info)
734 			return -ENOMEM;
735 
736 		dev_info->device_id = adev->pdev->device;
737 		dev_info->chip_rev = adev->rev_id;
738 		dev_info->external_rev = adev->external_rev_id;
739 		dev_info->pci_rev = adev->pdev->revision;
740 		dev_info->family = adev->family;
741 		dev_info->num_shader_engines = adev->gfx.config.max_shader_engines;
742 		dev_info->num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;
743 		/* return all clocks in KHz */
744 		dev_info->gpu_counter_freq = amdgpu_asic_get_xclk(adev) * 10;
745 		if (adev->pm.dpm_enabled) {
746 			dev_info->max_engine_clock = amdgpu_dpm_get_sclk(adev, false) * 10;
747 			dev_info->max_memory_clock = amdgpu_dpm_get_mclk(adev, false) * 10;
748 		} else {
749 			dev_info->max_engine_clock = adev->clock.default_sclk * 10;
750 			dev_info->max_memory_clock = adev->clock.default_mclk * 10;
751 		}
752 		dev_info->enabled_rb_pipes_mask = adev->gfx.config.backend_enable_mask;
753 		dev_info->num_rb_pipes = adev->gfx.config.max_backends_per_se *
754 			adev->gfx.config.max_shader_engines;
755 		dev_info->num_hw_gfx_contexts = adev->gfx.config.max_hw_contexts;
756 		dev_info->_pad = 0;
757 		dev_info->ids_flags = 0;
758 		if (adev->flags & AMD_IS_APU)
759 			dev_info->ids_flags |= AMDGPU_IDS_FLAGS_FUSION;
760 		if (amdgpu_mcbp || amdgpu_sriov_vf(adev))
761 			dev_info->ids_flags |= AMDGPU_IDS_FLAGS_PREEMPTION;
762 		if (amdgpu_is_tmz(adev))
763 			dev_info->ids_flags |= AMDGPU_IDS_FLAGS_TMZ;
764 
765 		vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
766 		vm_size -= AMDGPU_VA_RESERVED_SIZE;
767 
768 		/* Older VCE FW versions are buggy and can handle only 40bits */
769 		if (adev->vce.fw_version &&
770 		    adev->vce.fw_version < AMDGPU_VCE_FW_53_45)
771 			vm_size = min(vm_size, 1ULL << 40);
772 
773 		dev_info->virtual_address_offset = AMDGPU_VA_RESERVED_SIZE;
774 		dev_info->virtual_address_max =
775 			min(vm_size, AMDGPU_GMC_HOLE_START);
776 
777 		if (vm_size > AMDGPU_GMC_HOLE_START) {
778 			dev_info->high_va_offset = AMDGPU_GMC_HOLE_END;
779 			dev_info->high_va_max = AMDGPU_GMC_HOLE_END | vm_size;
780 		}
781 		dev_info->virtual_address_alignment = max((int)PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE);
782 		dev_info->pte_fragment_size = (1 << adev->vm_manager.fragment_size) * AMDGPU_GPU_PAGE_SIZE;
783 		dev_info->gart_page_size = AMDGPU_GPU_PAGE_SIZE;
784 		dev_info->cu_active_number = adev->gfx.cu_info.number;
785 		dev_info->cu_ao_mask = adev->gfx.cu_info.ao_cu_mask;
786 		dev_info->ce_ram_size = adev->gfx.ce_ram_size;
787 		memcpy(&dev_info->cu_ao_bitmap[0], &adev->gfx.cu_info.ao_cu_bitmap[0],
788 		       sizeof(adev->gfx.cu_info.ao_cu_bitmap));
789 		memcpy(&dev_info->cu_bitmap[0], &adev->gfx.cu_info.bitmap[0],
790 		       sizeof(adev->gfx.cu_info.bitmap));
791 		dev_info->vram_type = adev->gmc.vram_type;
792 		dev_info->vram_bit_width = adev->gmc.vram_width;
793 		dev_info->vce_harvest_config = adev->vce.harvest_config;
794 		dev_info->gc_double_offchip_lds_buf =
795 			adev->gfx.config.double_offchip_lds_buf;
796 		dev_info->wave_front_size = adev->gfx.cu_info.wave_front_size;
797 		dev_info->num_shader_visible_vgprs = adev->gfx.config.max_gprs;
798 		dev_info->num_cu_per_sh = adev->gfx.config.max_cu_per_sh;
799 		dev_info->num_tcc_blocks = adev->gfx.config.max_texture_channel_caches;
800 		dev_info->gs_vgt_table_depth = adev->gfx.config.gs_vgt_table_depth;
801 		dev_info->gs_prim_buffer_depth = adev->gfx.config.gs_prim_buffer_depth;
802 		dev_info->max_gs_waves_per_vgt = adev->gfx.config.max_gs_threads;
803 
804 		if (adev->family >= AMDGPU_FAMILY_NV)
805 			dev_info->pa_sc_tile_steering_override =
806 				adev->gfx.config.pa_sc_tile_steering_override;
807 
808 		dev_info->tcc_disabled_mask = adev->gfx.config.tcc_disabled_mask;
809 
810 		ret = copy_to_user(out, dev_info,
811 				   min((size_t)size, sizeof(*dev_info))) ? -EFAULT : 0;
812 		kfree(dev_info);
813 		return ret;
814 	}
815 	case AMDGPU_INFO_VCE_CLOCK_TABLE: {
816 		unsigned i;
817 		struct drm_amdgpu_info_vce_clock_table vce_clk_table = {};
818 		struct amd_vce_state *vce_state;
819 
820 		for (i = 0; i < AMDGPU_VCE_CLOCK_TABLE_ENTRIES; i++) {
821 			vce_state = amdgpu_dpm_get_vce_clock_state(adev, i);
822 			if (vce_state) {
823 				vce_clk_table.entries[i].sclk = vce_state->sclk;
824 				vce_clk_table.entries[i].mclk = vce_state->mclk;
825 				vce_clk_table.entries[i].eclk = vce_state->evclk;
826 				vce_clk_table.num_valid_entries++;
827 			}
828 		}
829 
830 		return copy_to_user(out, &vce_clk_table,
831 				    min((size_t)size, sizeof(vce_clk_table))) ? -EFAULT : 0;
832 	}
833 	case AMDGPU_INFO_VBIOS: {
834 		uint32_t bios_size = adev->bios_size;
835 
836 		switch (info->vbios_info.type) {
837 		case AMDGPU_INFO_VBIOS_SIZE:
838 			return copy_to_user(out, &bios_size,
839 					min((size_t)size, sizeof(bios_size)))
840 					? -EFAULT : 0;
841 		case AMDGPU_INFO_VBIOS_IMAGE: {
842 			uint8_t *bios;
843 			uint32_t bios_offset = info->vbios_info.offset;
844 
845 			if (bios_offset >= bios_size)
846 				return -EINVAL;
847 
848 			bios = adev->bios + bios_offset;
849 			return copy_to_user(out, bios,
850 					    min((size_t)size, (size_t)(bios_size - bios_offset)))
851 					? -EFAULT : 0;
852 		}
853 		default:
854 			DRM_DEBUG_KMS("Invalid request %d\n",
855 					info->vbios_info.type);
856 			return -EINVAL;
857 		}
858 	}
859 	case AMDGPU_INFO_NUM_HANDLES: {
860 		struct drm_amdgpu_info_num_handles handle;
861 
862 		switch (info->query_hw_ip.type) {
863 		case AMDGPU_HW_IP_UVD:
864 			/* Starting Polaris, we support unlimited UVD handles */
865 			if (adev->asic_type < CHIP_POLARIS10) {
866 				handle.uvd_max_handles = adev->uvd.max_handles;
867 				handle.uvd_used_handles = amdgpu_uvd_used_handles(adev);
868 
869 				return copy_to_user(out, &handle,
870 					min((size_t)size, sizeof(handle))) ? -EFAULT : 0;
871 			} else {
872 				return -ENODATA;
873 			}
874 
875 			break;
876 		default:
877 			return -EINVAL;
878 		}
879 	}
880 	case AMDGPU_INFO_SENSOR: {
881 		if (!adev->pm.dpm_enabled)
882 			return -ENOENT;
883 
884 		switch (info->sensor_info.type) {
885 		case AMDGPU_INFO_SENSOR_GFX_SCLK:
886 			/* get sclk in Mhz */
887 			if (amdgpu_dpm_read_sensor(adev,
888 						   AMDGPU_PP_SENSOR_GFX_SCLK,
889 						   (void *)&ui32, &ui32_size)) {
890 				return -EINVAL;
891 			}
892 			ui32 /= 100;
893 			break;
894 		case AMDGPU_INFO_SENSOR_GFX_MCLK:
895 			/* get mclk in Mhz */
896 			if (amdgpu_dpm_read_sensor(adev,
897 						   AMDGPU_PP_SENSOR_GFX_MCLK,
898 						   (void *)&ui32, &ui32_size)) {
899 				return -EINVAL;
900 			}
901 			ui32 /= 100;
902 			break;
903 		case AMDGPU_INFO_SENSOR_GPU_TEMP:
904 			/* get temperature in millidegrees C */
905 			if (amdgpu_dpm_read_sensor(adev,
906 						   AMDGPU_PP_SENSOR_GPU_TEMP,
907 						   (void *)&ui32, &ui32_size)) {
908 				return -EINVAL;
909 			}
910 			break;
911 		case AMDGPU_INFO_SENSOR_GPU_LOAD:
912 			/* get GPU load */
913 			if (amdgpu_dpm_read_sensor(adev,
914 						   AMDGPU_PP_SENSOR_GPU_LOAD,
915 						   (void *)&ui32, &ui32_size)) {
916 				return -EINVAL;
917 			}
918 			break;
919 		case AMDGPU_INFO_SENSOR_GPU_AVG_POWER:
920 			/* get average GPU power */
921 			if (amdgpu_dpm_read_sensor(adev,
922 						   AMDGPU_PP_SENSOR_GPU_POWER,
923 						   (void *)&ui32, &ui32_size)) {
924 				return -EINVAL;
925 			}
926 			ui32 >>= 8;
927 			break;
928 		case AMDGPU_INFO_SENSOR_VDDNB:
929 			/* get VDDNB in millivolts */
930 			if (amdgpu_dpm_read_sensor(adev,
931 						   AMDGPU_PP_SENSOR_VDDNB,
932 						   (void *)&ui32, &ui32_size)) {
933 				return -EINVAL;
934 			}
935 			break;
936 		case AMDGPU_INFO_SENSOR_VDDGFX:
937 			/* get VDDGFX in millivolts */
938 			if (amdgpu_dpm_read_sensor(adev,
939 						   AMDGPU_PP_SENSOR_VDDGFX,
940 						   (void *)&ui32, &ui32_size)) {
941 				return -EINVAL;
942 			}
943 			break;
944 		case AMDGPU_INFO_SENSOR_STABLE_PSTATE_GFX_SCLK:
945 			/* get stable pstate sclk in Mhz */
946 			if (amdgpu_dpm_read_sensor(adev,
947 						   AMDGPU_PP_SENSOR_STABLE_PSTATE_SCLK,
948 						   (void *)&ui32, &ui32_size)) {
949 				return -EINVAL;
950 			}
951 			ui32 /= 100;
952 			break;
953 		case AMDGPU_INFO_SENSOR_STABLE_PSTATE_GFX_MCLK:
954 			/* get stable pstate mclk in Mhz */
955 			if (amdgpu_dpm_read_sensor(adev,
956 						   AMDGPU_PP_SENSOR_STABLE_PSTATE_MCLK,
957 						   (void *)&ui32, &ui32_size)) {
958 				return -EINVAL;
959 			}
960 			ui32 /= 100;
961 			break;
962 		default:
963 			DRM_DEBUG_KMS("Invalid request %d\n",
964 				      info->sensor_info.type);
965 			return -EINVAL;
966 		}
967 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
968 	}
969 	case AMDGPU_INFO_VRAM_LOST_COUNTER:
970 		ui32 = atomic_read(&adev->vram_lost_counter);
971 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
972 	case AMDGPU_INFO_RAS_ENABLED_FEATURES: {
973 		struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
974 		uint64_t ras_mask;
975 
976 		if (!ras)
977 			return -EINVAL;
978 		ras_mask = (uint64_t)ras->supported << 32 | ras->features;
979 
980 		return copy_to_user(out, &ras_mask,
981 				min_t(u64, size, sizeof(ras_mask))) ?
982 			-EFAULT : 0;
983 	}
984 	default:
985 		DRM_DEBUG_KMS("Invalid request %d\n", info->query);
986 		return -EINVAL;
987 	}
988 	return 0;
989 }
990 
991 
992 /*
993  * Outdated mess for old drm with Xorg being in charge (void function now).
994  */
995 /**
996  * amdgpu_driver_lastclose_kms - drm callback for last close
997  *
998  * @dev: drm dev pointer
999  *
1000  * Switch vga_switcheroo state after last close (all asics).
1001  */
1002 void amdgpu_driver_lastclose_kms(struct drm_device *dev)
1003 {
1004 	drm_fb_helper_lastclose(dev);
1005 	vga_switcheroo_process_delayed_switch();
1006 }
1007 
1008 /**
1009  * amdgpu_driver_open_kms - drm callback for open
1010  *
1011  * @dev: drm dev pointer
1012  * @file_priv: drm file
1013  *
1014  * On device open, init vm on cayman+ (all asics).
1015  * Returns 0 on success, error on failure.
1016  */
1017 int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
1018 {
1019 	struct amdgpu_device *adev = drm_to_adev(dev);
1020 	struct amdgpu_fpriv *fpriv;
1021 	int r, pasid;
1022 
1023 	/* Ensure IB tests are run on ring */
1024 	flush_delayed_work(&adev->delayed_init_work);
1025 
1026 
1027 	if (amdgpu_ras_intr_triggered()) {
1028 		DRM_ERROR("RAS Intr triggered, device disabled!!");
1029 		return -EHWPOISON;
1030 	}
1031 
1032 	file_priv->driver_priv = NULL;
1033 
1034 	r = pm_runtime_get_sync(dev->dev);
1035 	if (r < 0)
1036 		goto pm_put;
1037 
1038 	fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
1039 	if (unlikely(!fpriv)) {
1040 		r = -ENOMEM;
1041 		goto out_suspend;
1042 	}
1043 
1044 	pasid = amdgpu_pasid_alloc(16);
1045 	if (pasid < 0) {
1046 		dev_warn(adev->dev, "No more PASIDs available!");
1047 		pasid = 0;
1048 	}
1049 	r = amdgpu_vm_init(adev, &fpriv->vm, AMDGPU_VM_CONTEXT_GFX, pasid);
1050 	if (r)
1051 		goto error_pasid;
1052 
1053 	fpriv->prt_va = amdgpu_vm_bo_add(adev, &fpriv->vm, NULL);
1054 	if (!fpriv->prt_va) {
1055 		r = -ENOMEM;
1056 		goto error_vm;
1057 	}
1058 
1059 	if (amdgpu_mcbp || amdgpu_sriov_vf(adev)) {
1060 		uint64_t csa_addr = amdgpu_csa_vaddr(adev) & AMDGPU_GMC_HOLE_MASK;
1061 
1062 		r = amdgpu_map_static_csa(adev, &fpriv->vm, adev->virt.csa_obj,
1063 						&fpriv->csa_va, csa_addr, AMDGPU_CSA_SIZE);
1064 		if (r)
1065 			goto error_vm;
1066 	}
1067 
1068 	mutex_init(&fpriv->bo_list_lock);
1069 	idr_init(&fpriv->bo_list_handles);
1070 
1071 	amdgpu_ctx_mgr_init(&fpriv->ctx_mgr);
1072 
1073 	file_priv->driver_priv = fpriv;
1074 	goto out_suspend;
1075 
1076 error_vm:
1077 	amdgpu_vm_fini(adev, &fpriv->vm);
1078 
1079 error_pasid:
1080 	if (pasid)
1081 		amdgpu_pasid_free(pasid);
1082 
1083 	kfree(fpriv);
1084 
1085 out_suspend:
1086 	pm_runtime_mark_last_busy(dev->dev);
1087 pm_put:
1088 	pm_runtime_put_autosuspend(dev->dev);
1089 
1090 	return r;
1091 }
1092 
1093 /**
1094  * amdgpu_driver_postclose_kms - drm callback for post close
1095  *
1096  * @dev: drm dev pointer
1097  * @file_priv: drm file
1098  *
1099  * On device post close, tear down vm on cayman+ (all asics).
1100  */
1101 void amdgpu_driver_postclose_kms(struct drm_device *dev,
1102 				 struct drm_file *file_priv)
1103 {
1104 	struct amdgpu_device *adev = drm_to_adev(dev);
1105 	struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
1106 	struct amdgpu_bo_list *list;
1107 	struct amdgpu_bo *pd;
1108 	u32 pasid;
1109 	int handle;
1110 
1111 	if (!fpriv)
1112 		return;
1113 
1114 	pm_runtime_get_sync(dev->dev);
1115 
1116 	if (amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_UVD) != NULL)
1117 		amdgpu_uvd_free_handles(adev, file_priv);
1118 	if (amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_VCE) != NULL)
1119 		amdgpu_vce_free_handles(adev, file_priv);
1120 
1121 	amdgpu_vm_bo_rmv(adev, fpriv->prt_va);
1122 
1123 	if (amdgpu_mcbp || amdgpu_sriov_vf(adev)) {
1124 		/* TODO: how to handle reserve failure */
1125 		BUG_ON(amdgpu_bo_reserve(adev->virt.csa_obj, true));
1126 		amdgpu_vm_bo_rmv(adev, fpriv->csa_va);
1127 		fpriv->csa_va = NULL;
1128 		amdgpu_bo_unreserve(adev->virt.csa_obj);
1129 	}
1130 
1131 	pasid = fpriv->vm.pasid;
1132 	pd = amdgpu_bo_ref(fpriv->vm.root.base.bo);
1133 
1134 	amdgpu_ctx_mgr_fini(&fpriv->ctx_mgr);
1135 	amdgpu_vm_fini(adev, &fpriv->vm);
1136 
1137 	if (pasid)
1138 		amdgpu_pasid_free_delayed(pd->tbo.base.resv, pasid);
1139 	amdgpu_bo_unref(&pd);
1140 
1141 	idr_for_each_entry(&fpriv->bo_list_handles, list, handle)
1142 		amdgpu_bo_list_put(list);
1143 
1144 	idr_destroy(&fpriv->bo_list_handles);
1145 	mutex_destroy(&fpriv->bo_list_lock);
1146 
1147 	kfree(fpriv);
1148 	file_priv->driver_priv = NULL;
1149 
1150 	pm_runtime_mark_last_busy(dev->dev);
1151 	pm_runtime_put_autosuspend(dev->dev);
1152 }
1153 
1154 /*
1155  * VBlank related functions.
1156  */
1157 /**
1158  * amdgpu_get_vblank_counter_kms - get frame count
1159  *
1160  * @crtc: crtc to get the frame count from
1161  *
1162  * Gets the frame count on the requested crtc (all asics).
1163  * Returns frame count on success, -EINVAL on failure.
1164  */
1165 u32 amdgpu_get_vblank_counter_kms(struct drm_crtc *crtc)
1166 {
1167 	struct drm_device *dev = crtc->dev;
1168 	unsigned int pipe = crtc->index;
1169 	struct amdgpu_device *adev = drm_to_adev(dev);
1170 	int vpos, hpos, stat;
1171 	u32 count;
1172 
1173 	if (pipe >= adev->mode_info.num_crtc) {
1174 		DRM_ERROR("Invalid crtc %u\n", pipe);
1175 		return -EINVAL;
1176 	}
1177 
1178 	/* The hw increments its frame counter at start of vsync, not at start
1179 	 * of vblank, as is required by DRM core vblank counter handling.
1180 	 * Cook the hw count here to make it appear to the caller as if it
1181 	 * incremented at start of vblank. We measure distance to start of
1182 	 * vblank in vpos. vpos therefore will be >= 0 between start of vblank
1183 	 * and start of vsync, so vpos >= 0 means to bump the hw frame counter
1184 	 * result by 1 to give the proper appearance to caller.
1185 	 */
1186 	if (adev->mode_info.crtcs[pipe]) {
1187 		/* Repeat readout if needed to provide stable result if
1188 		 * we cross start of vsync during the queries.
1189 		 */
1190 		do {
1191 			count = amdgpu_display_vblank_get_counter(adev, pipe);
1192 			/* Ask amdgpu_display_get_crtc_scanoutpos to return
1193 			 * vpos as distance to start of vblank, instead of
1194 			 * regular vertical scanout pos.
1195 			 */
1196 			stat = amdgpu_display_get_crtc_scanoutpos(
1197 				dev, pipe, GET_DISTANCE_TO_VBLANKSTART,
1198 				&vpos, &hpos, NULL, NULL,
1199 				&adev->mode_info.crtcs[pipe]->base.hwmode);
1200 		} while (count != amdgpu_display_vblank_get_counter(adev, pipe));
1201 
1202 		if (((stat & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE)) !=
1203 		    (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE))) {
1204 			DRM_DEBUG_VBL("Query failed! stat %d\n", stat);
1205 		} else {
1206 			DRM_DEBUG_VBL("crtc %d: dist from vblank start %d\n",
1207 				      pipe, vpos);
1208 
1209 			/* Bump counter if we are at >= leading edge of vblank,
1210 			 * but before vsync where vpos would turn negative and
1211 			 * the hw counter really increments.
1212 			 */
1213 			if (vpos >= 0)
1214 				count++;
1215 		}
1216 	} else {
1217 		/* Fallback to use value as is. */
1218 		count = amdgpu_display_vblank_get_counter(adev, pipe);
1219 		DRM_DEBUG_VBL("NULL mode info! Returned count may be wrong.\n");
1220 	}
1221 
1222 	return count;
1223 }
1224 
1225 /**
1226  * amdgpu_enable_vblank_kms - enable vblank interrupt
1227  *
1228  * @crtc: crtc to enable vblank interrupt for
1229  *
1230  * Enable the interrupt on the requested crtc (all asics).
1231  * Returns 0 on success, -EINVAL on failure.
1232  */
1233 int amdgpu_enable_vblank_kms(struct drm_crtc *crtc)
1234 {
1235 	struct drm_device *dev = crtc->dev;
1236 	unsigned int pipe = crtc->index;
1237 	struct amdgpu_device *adev = drm_to_adev(dev);
1238 	int idx = amdgpu_display_crtc_idx_to_irq_type(adev, pipe);
1239 
1240 	return amdgpu_irq_get(adev, &adev->crtc_irq, idx);
1241 }
1242 
1243 /**
1244  * amdgpu_disable_vblank_kms - disable vblank interrupt
1245  *
1246  * @crtc: crtc to disable vblank interrupt for
1247  *
1248  * Disable the interrupt on the requested crtc (all asics).
1249  */
1250 void amdgpu_disable_vblank_kms(struct drm_crtc *crtc)
1251 {
1252 	struct drm_device *dev = crtc->dev;
1253 	unsigned int pipe = crtc->index;
1254 	struct amdgpu_device *adev = drm_to_adev(dev);
1255 	int idx = amdgpu_display_crtc_idx_to_irq_type(adev, pipe);
1256 
1257 	amdgpu_irq_put(adev, &adev->crtc_irq, idx);
1258 }
1259 
1260 /*
1261  * Debugfs info
1262  */
1263 #if defined(CONFIG_DEBUG_FS)
1264 
1265 static int amdgpu_debugfs_firmware_info(struct seq_file *m, void *data)
1266 {
1267 	struct drm_info_node *node = (struct drm_info_node *) m->private;
1268 	struct drm_device *dev = node->minor->dev;
1269 	struct amdgpu_device *adev = drm_to_adev(dev);
1270 	struct drm_amdgpu_info_firmware fw_info;
1271 	struct drm_amdgpu_query_fw query_fw;
1272 	struct atom_context *ctx = adev->mode_info.atom_context;
1273 	int ret, i;
1274 
1275 	/* VCE */
1276 	query_fw.fw_type = AMDGPU_INFO_FW_VCE;
1277 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1278 	if (ret)
1279 		return ret;
1280 	seq_printf(m, "VCE feature version: %u, firmware version: 0x%08x\n",
1281 		   fw_info.feature, fw_info.ver);
1282 
1283 	/* UVD */
1284 	query_fw.fw_type = AMDGPU_INFO_FW_UVD;
1285 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1286 	if (ret)
1287 		return ret;
1288 	seq_printf(m, "UVD feature version: %u, firmware version: 0x%08x\n",
1289 		   fw_info.feature, fw_info.ver);
1290 
1291 	/* GMC */
1292 	query_fw.fw_type = AMDGPU_INFO_FW_GMC;
1293 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1294 	if (ret)
1295 		return ret;
1296 	seq_printf(m, "MC feature version: %u, firmware version: 0x%08x\n",
1297 		   fw_info.feature, fw_info.ver);
1298 
1299 	/* ME */
1300 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_ME;
1301 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1302 	if (ret)
1303 		return ret;
1304 	seq_printf(m, "ME feature version: %u, firmware version: 0x%08x\n",
1305 		   fw_info.feature, fw_info.ver);
1306 
1307 	/* PFP */
1308 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_PFP;
1309 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1310 	if (ret)
1311 		return ret;
1312 	seq_printf(m, "PFP feature version: %u, firmware version: 0x%08x\n",
1313 		   fw_info.feature, fw_info.ver);
1314 
1315 	/* CE */
1316 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_CE;
1317 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1318 	if (ret)
1319 		return ret;
1320 	seq_printf(m, "CE feature version: %u, firmware version: 0x%08x\n",
1321 		   fw_info.feature, fw_info.ver);
1322 
1323 	/* RLC */
1324 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_RLC;
1325 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1326 	if (ret)
1327 		return ret;
1328 	seq_printf(m, "RLC feature version: %u, firmware version: 0x%08x\n",
1329 		   fw_info.feature, fw_info.ver);
1330 
1331 	/* RLC SAVE RESTORE LIST CNTL */
1332 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_CNTL;
1333 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1334 	if (ret)
1335 		return ret;
1336 	seq_printf(m, "RLC SRLC feature version: %u, firmware version: 0x%08x\n",
1337 		   fw_info.feature, fw_info.ver);
1338 
1339 	/* RLC SAVE RESTORE LIST GPM MEM */
1340 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_GPM_MEM;
1341 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1342 	if (ret)
1343 		return ret;
1344 	seq_printf(m, "RLC SRLG feature version: %u, firmware version: 0x%08x\n",
1345 		   fw_info.feature, fw_info.ver);
1346 
1347 	/* RLC SAVE RESTORE LIST SRM MEM */
1348 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_SRM_MEM;
1349 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1350 	if (ret)
1351 		return ret;
1352 	seq_printf(m, "RLC SRLS feature version: %u, firmware version: 0x%08x\n",
1353 		   fw_info.feature, fw_info.ver);
1354 
1355 	/* MEC */
1356 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_MEC;
1357 	query_fw.index = 0;
1358 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1359 	if (ret)
1360 		return ret;
1361 	seq_printf(m, "MEC feature version: %u, firmware version: 0x%08x\n",
1362 		   fw_info.feature, fw_info.ver);
1363 
1364 	/* MEC2 */
1365 	if (adev->gfx.mec2_fw) {
1366 		query_fw.index = 1;
1367 		ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1368 		if (ret)
1369 			return ret;
1370 		seq_printf(m, "MEC2 feature version: %u, firmware version: 0x%08x\n",
1371 			   fw_info.feature, fw_info.ver);
1372 	}
1373 
1374 	/* PSP SOS */
1375 	query_fw.fw_type = AMDGPU_INFO_FW_SOS;
1376 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1377 	if (ret)
1378 		return ret;
1379 	seq_printf(m, "SOS feature version: %u, firmware version: 0x%08x\n",
1380 		   fw_info.feature, fw_info.ver);
1381 
1382 
1383 	/* PSP ASD */
1384 	query_fw.fw_type = AMDGPU_INFO_FW_ASD;
1385 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1386 	if (ret)
1387 		return ret;
1388 	seq_printf(m, "ASD feature version: %u, firmware version: 0x%08x\n",
1389 		   fw_info.feature, fw_info.ver);
1390 
1391 	query_fw.fw_type = AMDGPU_INFO_FW_TA;
1392 	for (i = 0; i < 4; i++) {
1393 		query_fw.index = i;
1394 		ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1395 		if (ret)
1396 			continue;
1397 		switch (query_fw.index) {
1398 		case 0:
1399 			seq_printf(m, "TA %s feature version: 0x%08x, firmware version: 0x%08x\n",
1400 					"RAS", fw_info.feature, fw_info.ver);
1401 			break;
1402 		case 1:
1403 			seq_printf(m, "TA %s feature version: 0x%08x, firmware version: 0x%08x\n",
1404 					"XGMI", fw_info.feature, fw_info.ver);
1405 			break;
1406 		case 2:
1407 			seq_printf(m, "TA %s feature version: 0x%08x, firmware version: 0x%08x\n",
1408 					"HDCP", fw_info.feature, fw_info.ver);
1409 			break;
1410 		case 3:
1411 			seq_printf(m, "TA %s feature version: 0x%08x, firmware version: 0x%08x\n",
1412 					"DTM", fw_info.feature, fw_info.ver);
1413 			break;
1414 		default:
1415 			return -EINVAL;
1416 		}
1417 	}
1418 
1419 	/* SMC */
1420 	query_fw.fw_type = AMDGPU_INFO_FW_SMC;
1421 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1422 	if (ret)
1423 		return ret;
1424 	seq_printf(m, "SMC feature version: %u, firmware version: 0x%08x\n",
1425 		   fw_info.feature, fw_info.ver);
1426 
1427 	/* SDMA */
1428 	query_fw.fw_type = AMDGPU_INFO_FW_SDMA;
1429 	for (i = 0; i < adev->sdma.num_instances; i++) {
1430 		query_fw.index = i;
1431 		ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1432 		if (ret)
1433 			return ret;
1434 		seq_printf(m, "SDMA%d feature version: %u, firmware version: 0x%08x\n",
1435 			   i, fw_info.feature, fw_info.ver);
1436 	}
1437 
1438 	/* VCN */
1439 	query_fw.fw_type = AMDGPU_INFO_FW_VCN;
1440 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1441 	if (ret)
1442 		return ret;
1443 	seq_printf(m, "VCN feature version: %u, firmware version: 0x%08x\n",
1444 		   fw_info.feature, fw_info.ver);
1445 
1446 	/* DMCU */
1447 	query_fw.fw_type = AMDGPU_INFO_FW_DMCU;
1448 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1449 	if (ret)
1450 		return ret;
1451 	seq_printf(m, "DMCU feature version: %u, firmware version: 0x%08x\n",
1452 		   fw_info.feature, fw_info.ver);
1453 
1454 	/* DMCUB */
1455 	query_fw.fw_type = AMDGPU_INFO_FW_DMCUB;
1456 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1457 	if (ret)
1458 		return ret;
1459 	seq_printf(m, "DMCUB feature version: %u, firmware version: 0x%08x\n",
1460 		   fw_info.feature, fw_info.ver);
1461 
1462 	/* TOC */
1463 	query_fw.fw_type = AMDGPU_INFO_FW_TOC;
1464 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1465 	if (ret)
1466 		return ret;
1467 	seq_printf(m, "TOC feature version: %u, firmware version: 0x%08x\n",
1468 		   fw_info.feature, fw_info.ver);
1469 
1470 	seq_printf(m, "VBIOS version: %s\n", ctx->vbios_version);
1471 
1472 	return 0;
1473 }
1474 
1475 static const struct drm_info_list amdgpu_firmware_info_list[] = {
1476 	{"amdgpu_firmware_info", amdgpu_debugfs_firmware_info, 0, NULL},
1477 };
1478 #endif
1479 
1480 int amdgpu_debugfs_firmware_init(struct amdgpu_device *adev)
1481 {
1482 #if defined(CONFIG_DEBUG_FS)
1483 	return amdgpu_debugfs_add_files(adev, amdgpu_firmware_info_list,
1484 					ARRAY_SIZE(amdgpu_firmware_info_list));
1485 #else
1486 	return 0;
1487 #endif
1488 }
1489