xref: /openbmc/linux/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c (revision c62d3cd0ddd629606a3830aa22e9dcc6c2a0d3bf)
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 #include <drm/drmP.h>
29 #include "amdgpu.h"
30 #include <drm/amdgpu_drm.h>
31 #include "amdgpu_sched.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/pm_runtime.h>
39 #include "amdgpu_amdkfd.h"
40 #include "amdgpu_gem.h"
41 #include "amdgpu_display.h"
42 
43 /**
44  * amdgpu_driver_unload_kms - Main unload function for KMS.
45  *
46  * @dev: drm dev pointer
47  *
48  * This is the main unload function for KMS (all asics).
49  * Returns 0 on success.
50  */
51 void amdgpu_driver_unload_kms(struct drm_device *dev)
52 {
53 	struct amdgpu_device *adev = dev->dev_private;
54 
55 	if (adev == NULL)
56 		return;
57 
58 	if (adev->rmmio == NULL)
59 		goto done_free;
60 
61 	if (amdgpu_sriov_vf(adev))
62 		amdgpu_virt_request_full_gpu(adev, false);
63 
64 	if (amdgpu_device_is_px(dev)) {
65 		pm_runtime_get_sync(dev->dev);
66 		pm_runtime_forbid(dev->dev);
67 	}
68 
69 	amdgpu_acpi_fini(adev);
70 
71 	amdgpu_device_fini(adev);
72 
73 done_free:
74 	kfree(adev);
75 	dev->dev_private = NULL;
76 }
77 
78 /**
79  * amdgpu_driver_load_kms - Main load function for KMS.
80  *
81  * @dev: drm dev pointer
82  * @flags: device flags
83  *
84  * This is the main load function for KMS (all asics).
85  * Returns 0 on success, error on failure.
86  */
87 int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
88 {
89 	struct amdgpu_device *adev;
90 	int r, acpi_status;
91 
92 #ifdef CONFIG_DRM_AMDGPU_SI
93 	if (!amdgpu_si_support) {
94 		switch (flags & AMD_ASIC_MASK) {
95 		case CHIP_TAHITI:
96 		case CHIP_PITCAIRN:
97 		case CHIP_VERDE:
98 		case CHIP_OLAND:
99 		case CHIP_HAINAN:
100 			dev_info(dev->dev,
101 				 "SI support provided by radeon.\n");
102 			dev_info(dev->dev,
103 				 "Use radeon.si_support=0 amdgpu.si_support=1 to override.\n"
104 				);
105 			return -ENODEV;
106 		}
107 	}
108 #endif
109 #ifdef CONFIG_DRM_AMDGPU_CIK
110 	if (!amdgpu_cik_support) {
111 		switch (flags & AMD_ASIC_MASK) {
112 		case CHIP_KAVERI:
113 		case CHIP_BONAIRE:
114 		case CHIP_HAWAII:
115 		case CHIP_KABINI:
116 		case CHIP_MULLINS:
117 			dev_info(dev->dev,
118 				 "CIK support provided by radeon.\n");
119 			dev_info(dev->dev,
120 				 "Use radeon.cik_support=0 amdgpu.cik_support=1 to override.\n"
121 				);
122 			return -ENODEV;
123 		}
124 	}
125 #endif
126 
127 	adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL);
128 	if (adev == NULL) {
129 		return -ENOMEM;
130 	}
131 	dev->dev_private = (void *)adev;
132 
133 	if ((amdgpu_runtime_pm != 0) &&
134 	    amdgpu_has_atpx() &&
135 	    (amdgpu_is_atpx_hybrid() ||
136 	     amdgpu_has_atpx_dgpu_power_cntl()) &&
137 	    ((flags & AMD_IS_APU) == 0) &&
138 	    !pci_is_thunderbolt_attached(dev->pdev))
139 		flags |= AMD_IS_PX;
140 
141 	/* amdgpu_device_init should report only fatal error
142 	 * like memory allocation failure or iomapping failure,
143 	 * or memory manager initialization failure, it must
144 	 * properly initialize the GPU MC controller and permit
145 	 * VRAM allocation
146 	 */
147 	r = amdgpu_device_init(adev, dev, dev->pdev, flags);
148 	if (r) {
149 		dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
150 		goto out;
151 	}
152 
153 	/* Call ACPI methods: require modeset init
154 	 * but failure is not fatal
155 	 */
156 	if (!r) {
157 		acpi_status = amdgpu_acpi_init(adev);
158 		if (acpi_status)
159 		dev_dbg(&dev->pdev->dev,
160 				"Error during ACPI methods call\n");
161 	}
162 
163 	if (amdgpu_device_is_px(dev)) {
164 		pm_runtime_use_autosuspend(dev->dev);
165 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
166 		pm_runtime_set_active(dev->dev);
167 		pm_runtime_allow(dev->dev);
168 		pm_runtime_mark_last_busy(dev->dev);
169 		pm_runtime_put_autosuspend(dev->dev);
170 	}
171 
172 out:
173 	if (r) {
174 		/* balance pm_runtime_get_sync in amdgpu_driver_unload_kms */
175 		if (adev->rmmio && amdgpu_device_is_px(dev))
176 			pm_runtime_put_noidle(dev->dev);
177 		amdgpu_driver_unload_kms(dev);
178 	}
179 
180 	return r;
181 }
182 
183 static int amdgpu_firmware_info(struct drm_amdgpu_info_firmware *fw_info,
184 				struct drm_amdgpu_query_fw *query_fw,
185 				struct amdgpu_device *adev)
186 {
187 	switch (query_fw->fw_type) {
188 	case AMDGPU_INFO_FW_VCE:
189 		fw_info->ver = adev->vce.fw_version;
190 		fw_info->feature = adev->vce.fb_version;
191 		break;
192 	case AMDGPU_INFO_FW_UVD:
193 		fw_info->ver = adev->uvd.fw_version;
194 		fw_info->feature = 0;
195 		break;
196 	case AMDGPU_INFO_FW_VCN:
197 		fw_info->ver = adev->vcn.fw_version;
198 		fw_info->feature = 0;
199 		break;
200 	case AMDGPU_INFO_FW_GMC:
201 		fw_info->ver = adev->gmc.fw_version;
202 		fw_info->feature = 0;
203 		break;
204 	case AMDGPU_INFO_FW_GFX_ME:
205 		fw_info->ver = adev->gfx.me_fw_version;
206 		fw_info->feature = adev->gfx.me_feature_version;
207 		break;
208 	case AMDGPU_INFO_FW_GFX_PFP:
209 		fw_info->ver = adev->gfx.pfp_fw_version;
210 		fw_info->feature = adev->gfx.pfp_feature_version;
211 		break;
212 	case AMDGPU_INFO_FW_GFX_CE:
213 		fw_info->ver = adev->gfx.ce_fw_version;
214 		fw_info->feature = adev->gfx.ce_feature_version;
215 		break;
216 	case AMDGPU_INFO_FW_GFX_RLC:
217 		fw_info->ver = adev->gfx.rlc_fw_version;
218 		fw_info->feature = adev->gfx.rlc_feature_version;
219 		break;
220 	case AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_CNTL:
221 		fw_info->ver = adev->gfx.rlc_srlc_fw_version;
222 		fw_info->feature = adev->gfx.rlc_srlc_feature_version;
223 		break;
224 	case AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_GPM_MEM:
225 		fw_info->ver = adev->gfx.rlc_srlg_fw_version;
226 		fw_info->feature = adev->gfx.rlc_srlg_feature_version;
227 		break;
228 	case AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_SRM_MEM:
229 		fw_info->ver = adev->gfx.rlc_srls_fw_version;
230 		fw_info->feature = adev->gfx.rlc_srls_feature_version;
231 		break;
232 	case AMDGPU_INFO_FW_GFX_MEC:
233 		if (query_fw->index == 0) {
234 			fw_info->ver = adev->gfx.mec_fw_version;
235 			fw_info->feature = adev->gfx.mec_feature_version;
236 		} else if (query_fw->index == 1) {
237 			fw_info->ver = adev->gfx.mec2_fw_version;
238 			fw_info->feature = adev->gfx.mec2_feature_version;
239 		} else
240 			return -EINVAL;
241 		break;
242 	case AMDGPU_INFO_FW_SMC:
243 		fw_info->ver = adev->pm.fw_version;
244 		fw_info->feature = 0;
245 		break;
246 	case AMDGPU_INFO_FW_SDMA:
247 		if (query_fw->index >= adev->sdma.num_instances)
248 			return -EINVAL;
249 		fw_info->ver = adev->sdma.instance[query_fw->index].fw_version;
250 		fw_info->feature = adev->sdma.instance[query_fw->index].feature_version;
251 		break;
252 	case AMDGPU_INFO_FW_SOS:
253 		fw_info->ver = adev->psp.sos_fw_version;
254 		fw_info->feature = adev->psp.sos_feature_version;
255 		break;
256 	case AMDGPU_INFO_FW_ASD:
257 		fw_info->ver = adev->psp.asd_fw_version;
258 		fw_info->feature = adev->psp.asd_feature_version;
259 		break;
260 	default:
261 		return -EINVAL;
262 	}
263 	return 0;
264 }
265 
266 /*
267  * Userspace get information ioctl
268  */
269 /**
270  * amdgpu_info_ioctl - answer a device specific request.
271  *
272  * @adev: amdgpu device pointer
273  * @data: request object
274  * @filp: drm filp
275  *
276  * This function is used to pass device specific parameters to the userspace
277  * drivers.  Examples include: pci device id, pipeline parms, tiling params,
278  * etc. (all asics).
279  * Returns 0 on success, -EINVAL on failure.
280  */
281 static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
282 {
283 	struct amdgpu_device *adev = dev->dev_private;
284 	struct drm_amdgpu_info *info = data;
285 	struct amdgpu_mode_info *minfo = &adev->mode_info;
286 	void __user *out = (void __user *)(uintptr_t)info->return_pointer;
287 	uint32_t size = info->return_size;
288 	struct drm_crtc *crtc;
289 	uint32_t ui32 = 0;
290 	uint64_t ui64 = 0;
291 	int i, j, found;
292 	int ui32_size = sizeof(ui32);
293 
294 	if (!info->return_size || !info->return_pointer)
295 		return -EINVAL;
296 
297 	/* Ensure IB tests are run on ring */
298 	flush_delayed_work(&adev->late_init_work);
299 
300 	switch (info->query) {
301 	case AMDGPU_INFO_ACCEL_WORKING:
302 		ui32 = adev->accel_working;
303 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
304 	case AMDGPU_INFO_CRTC_FROM_ID:
305 		for (i = 0, found = 0; i < adev->mode_info.num_crtc; i++) {
306 			crtc = (struct drm_crtc *)minfo->crtcs[i];
307 			if (crtc && crtc->base.id == info->mode_crtc.id) {
308 				struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
309 				ui32 = amdgpu_crtc->crtc_id;
310 				found = 1;
311 				break;
312 			}
313 		}
314 		if (!found) {
315 			DRM_DEBUG_KMS("unknown crtc id %d\n", info->mode_crtc.id);
316 			return -EINVAL;
317 		}
318 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
319 	case AMDGPU_INFO_HW_IP_INFO: {
320 		struct drm_amdgpu_info_hw_ip ip = {};
321 		enum amd_ip_block_type type;
322 		uint32_t ring_mask = 0;
323 		uint32_t ib_start_alignment = 0;
324 		uint32_t ib_size_alignment = 0;
325 
326 		if (info->query_hw_ip.ip_instance >= AMDGPU_HW_IP_INSTANCE_MAX_COUNT)
327 			return -EINVAL;
328 
329 		switch (info->query_hw_ip.type) {
330 		case AMDGPU_HW_IP_GFX:
331 			type = AMD_IP_BLOCK_TYPE_GFX;
332 			for (i = 0; i < adev->gfx.num_gfx_rings; i++)
333 				ring_mask |= adev->gfx.gfx_ring[i].ready << i;
334 			ib_start_alignment = 32;
335 			ib_size_alignment = 32;
336 			break;
337 		case AMDGPU_HW_IP_COMPUTE:
338 			type = AMD_IP_BLOCK_TYPE_GFX;
339 			for (i = 0; i < adev->gfx.num_compute_rings; i++)
340 				ring_mask |= adev->gfx.compute_ring[i].ready << i;
341 			ib_start_alignment = 32;
342 			ib_size_alignment = 32;
343 			break;
344 		case AMDGPU_HW_IP_DMA:
345 			type = AMD_IP_BLOCK_TYPE_SDMA;
346 			for (i = 0; i < adev->sdma.num_instances; i++)
347 				ring_mask |= adev->sdma.instance[i].ring.ready << i;
348 			ib_start_alignment = 256;
349 			ib_size_alignment = 4;
350 			break;
351 		case AMDGPU_HW_IP_UVD:
352 			type = AMD_IP_BLOCK_TYPE_UVD;
353 			for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
354 				if (adev->uvd.harvest_config & (1 << i))
355 					continue;
356 				ring_mask |= adev->uvd.inst[i].ring.ready;
357 			}
358 			ib_start_alignment = 64;
359 			ib_size_alignment = 64;
360 			break;
361 		case AMDGPU_HW_IP_VCE:
362 			type = AMD_IP_BLOCK_TYPE_VCE;
363 			for (i = 0; i < adev->vce.num_rings; i++)
364 				ring_mask |= adev->vce.ring[i].ready << i;
365 			ib_start_alignment = 4;
366 			ib_size_alignment = 1;
367 			break;
368 		case AMDGPU_HW_IP_UVD_ENC:
369 			type = AMD_IP_BLOCK_TYPE_UVD;
370 			for (i = 0; i < adev->uvd.num_uvd_inst; i++) {
371 				if (adev->uvd.harvest_config & (1 << i))
372 					continue;
373 				for (j = 0; j < adev->uvd.num_enc_rings; j++)
374 					ring_mask |= adev->uvd.inst[i].ring_enc[j].ready << j;
375 			}
376 			ib_start_alignment = 64;
377 			ib_size_alignment = 64;
378 			break;
379 		case AMDGPU_HW_IP_VCN_DEC:
380 			type = AMD_IP_BLOCK_TYPE_VCN;
381 			ring_mask = adev->vcn.ring_dec.ready;
382 			ib_start_alignment = 16;
383 			ib_size_alignment = 16;
384 			break;
385 		case AMDGPU_HW_IP_VCN_ENC:
386 			type = AMD_IP_BLOCK_TYPE_VCN;
387 			for (i = 0; i < adev->vcn.num_enc_rings; i++)
388 				ring_mask |= adev->vcn.ring_enc[i].ready << i;
389 			ib_start_alignment = 64;
390 			ib_size_alignment = 1;
391 			break;
392 		case AMDGPU_HW_IP_VCN_JPEG:
393 			type = AMD_IP_BLOCK_TYPE_VCN;
394 			ring_mask = adev->vcn.ring_jpeg.ready;
395 			ib_start_alignment = 16;
396 			ib_size_alignment = 16;
397 			break;
398 		default:
399 			return -EINVAL;
400 		}
401 
402 		for (i = 0; i < adev->num_ip_blocks; i++) {
403 			if (adev->ip_blocks[i].version->type == type &&
404 			    adev->ip_blocks[i].status.valid) {
405 				ip.hw_ip_version_major = adev->ip_blocks[i].version->major;
406 				ip.hw_ip_version_minor = adev->ip_blocks[i].version->minor;
407 				ip.capabilities_flags = 0;
408 				ip.available_rings = ring_mask;
409 				ip.ib_start_alignment = ib_start_alignment;
410 				ip.ib_size_alignment = ib_size_alignment;
411 				break;
412 			}
413 		}
414 		return copy_to_user(out, &ip,
415 				    min((size_t)size, sizeof(ip))) ? -EFAULT : 0;
416 	}
417 	case AMDGPU_INFO_HW_IP_COUNT: {
418 		enum amd_ip_block_type type;
419 		uint32_t count = 0;
420 
421 		switch (info->query_hw_ip.type) {
422 		case AMDGPU_HW_IP_GFX:
423 			type = AMD_IP_BLOCK_TYPE_GFX;
424 			break;
425 		case AMDGPU_HW_IP_COMPUTE:
426 			type = AMD_IP_BLOCK_TYPE_GFX;
427 			break;
428 		case AMDGPU_HW_IP_DMA:
429 			type = AMD_IP_BLOCK_TYPE_SDMA;
430 			break;
431 		case AMDGPU_HW_IP_UVD:
432 			type = AMD_IP_BLOCK_TYPE_UVD;
433 			break;
434 		case AMDGPU_HW_IP_VCE:
435 			type = AMD_IP_BLOCK_TYPE_VCE;
436 			break;
437 		case AMDGPU_HW_IP_UVD_ENC:
438 			type = AMD_IP_BLOCK_TYPE_UVD;
439 			break;
440 		case AMDGPU_HW_IP_VCN_DEC:
441 		case AMDGPU_HW_IP_VCN_ENC:
442 		case AMDGPU_HW_IP_VCN_JPEG:
443 			type = AMD_IP_BLOCK_TYPE_VCN;
444 			break;
445 		default:
446 			return -EINVAL;
447 		}
448 
449 		for (i = 0; i < adev->num_ip_blocks; i++)
450 			if (adev->ip_blocks[i].version->type == type &&
451 			    adev->ip_blocks[i].status.valid &&
452 			    count < AMDGPU_HW_IP_INSTANCE_MAX_COUNT)
453 				count++;
454 
455 		return copy_to_user(out, &count, min(size, 4u)) ? -EFAULT : 0;
456 	}
457 	case AMDGPU_INFO_TIMESTAMP:
458 		ui64 = amdgpu_gfx_get_gpu_clock_counter(adev);
459 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
460 	case AMDGPU_INFO_FW_VERSION: {
461 		struct drm_amdgpu_info_firmware fw_info;
462 		int ret;
463 
464 		/* We only support one instance of each IP block right now. */
465 		if (info->query_fw.ip_instance != 0)
466 			return -EINVAL;
467 
468 		ret = amdgpu_firmware_info(&fw_info, &info->query_fw, adev);
469 		if (ret)
470 			return ret;
471 
472 		return copy_to_user(out, &fw_info,
473 				    min((size_t)size, sizeof(fw_info))) ? -EFAULT : 0;
474 	}
475 	case AMDGPU_INFO_NUM_BYTES_MOVED:
476 		ui64 = atomic64_read(&adev->num_bytes_moved);
477 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
478 	case AMDGPU_INFO_NUM_EVICTIONS:
479 		ui64 = atomic64_read(&adev->num_evictions);
480 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
481 	case AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS:
482 		ui64 = atomic64_read(&adev->num_vram_cpu_page_faults);
483 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
484 	case AMDGPU_INFO_VRAM_USAGE:
485 		ui64 = amdgpu_vram_mgr_usage(&adev->mman.bdev.man[TTM_PL_VRAM]);
486 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
487 	case AMDGPU_INFO_VIS_VRAM_USAGE:
488 		ui64 = amdgpu_vram_mgr_vis_usage(&adev->mman.bdev.man[TTM_PL_VRAM]);
489 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
490 	case AMDGPU_INFO_GTT_USAGE:
491 		ui64 = amdgpu_gtt_mgr_usage(&adev->mman.bdev.man[TTM_PL_TT]);
492 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
493 	case AMDGPU_INFO_GDS_CONFIG: {
494 		struct drm_amdgpu_info_gds gds_info;
495 
496 		memset(&gds_info, 0, sizeof(gds_info));
497 		gds_info.gds_gfx_partition_size = adev->gds.mem.gfx_partition_size >> AMDGPU_GDS_SHIFT;
498 		gds_info.compute_partition_size = adev->gds.mem.cs_partition_size >> AMDGPU_GDS_SHIFT;
499 		gds_info.gds_total_size = adev->gds.mem.total_size >> AMDGPU_GDS_SHIFT;
500 		gds_info.gws_per_gfx_partition = adev->gds.gws.gfx_partition_size >> AMDGPU_GWS_SHIFT;
501 		gds_info.gws_per_compute_partition = adev->gds.gws.cs_partition_size >> AMDGPU_GWS_SHIFT;
502 		gds_info.oa_per_gfx_partition = adev->gds.oa.gfx_partition_size >> AMDGPU_OA_SHIFT;
503 		gds_info.oa_per_compute_partition = adev->gds.oa.cs_partition_size >> AMDGPU_OA_SHIFT;
504 		return copy_to_user(out, &gds_info,
505 				    min((size_t)size, sizeof(gds_info))) ? -EFAULT : 0;
506 	}
507 	case AMDGPU_INFO_VRAM_GTT: {
508 		struct drm_amdgpu_info_vram_gtt vram_gtt;
509 
510 		vram_gtt.vram_size = adev->gmc.real_vram_size -
511 			atomic64_read(&adev->vram_pin_size);
512 		vram_gtt.vram_cpu_accessible_size = adev->gmc.visible_vram_size -
513 			atomic64_read(&adev->visible_pin_size);
514 		vram_gtt.gtt_size = adev->mman.bdev.man[TTM_PL_TT].size;
515 		vram_gtt.gtt_size *= PAGE_SIZE;
516 		vram_gtt.gtt_size -= atomic64_read(&adev->gart_pin_size);
517 		return copy_to_user(out, &vram_gtt,
518 				    min((size_t)size, sizeof(vram_gtt))) ? -EFAULT : 0;
519 	}
520 	case AMDGPU_INFO_MEMORY: {
521 		struct drm_amdgpu_memory_info mem;
522 
523 		memset(&mem, 0, sizeof(mem));
524 		mem.vram.total_heap_size = adev->gmc.real_vram_size;
525 		mem.vram.usable_heap_size = adev->gmc.real_vram_size -
526 			atomic64_read(&adev->vram_pin_size);
527 		mem.vram.heap_usage =
528 			amdgpu_vram_mgr_usage(&adev->mman.bdev.man[TTM_PL_VRAM]);
529 		mem.vram.max_allocation = mem.vram.usable_heap_size * 3 / 4;
530 
531 		mem.cpu_accessible_vram.total_heap_size =
532 			adev->gmc.visible_vram_size;
533 		mem.cpu_accessible_vram.usable_heap_size = adev->gmc.visible_vram_size -
534 			atomic64_read(&adev->visible_pin_size);
535 		mem.cpu_accessible_vram.heap_usage =
536 			amdgpu_vram_mgr_vis_usage(&adev->mman.bdev.man[TTM_PL_VRAM]);
537 		mem.cpu_accessible_vram.max_allocation =
538 			mem.cpu_accessible_vram.usable_heap_size * 3 / 4;
539 
540 		mem.gtt.total_heap_size = adev->mman.bdev.man[TTM_PL_TT].size;
541 		mem.gtt.total_heap_size *= PAGE_SIZE;
542 		mem.gtt.usable_heap_size = mem.gtt.total_heap_size -
543 			atomic64_read(&adev->gart_pin_size);
544 		mem.gtt.heap_usage =
545 			amdgpu_gtt_mgr_usage(&adev->mman.bdev.man[TTM_PL_TT]);
546 		mem.gtt.max_allocation = mem.gtt.usable_heap_size * 3 / 4;
547 
548 		return copy_to_user(out, &mem,
549 				    min((size_t)size, sizeof(mem)))
550 				    ? -EFAULT : 0;
551 	}
552 	case AMDGPU_INFO_READ_MMR_REG: {
553 		unsigned n, alloc_size;
554 		uint32_t *regs;
555 		unsigned se_num = (info->read_mmr_reg.instance >>
556 				   AMDGPU_INFO_MMR_SE_INDEX_SHIFT) &
557 				  AMDGPU_INFO_MMR_SE_INDEX_MASK;
558 		unsigned sh_num = (info->read_mmr_reg.instance >>
559 				   AMDGPU_INFO_MMR_SH_INDEX_SHIFT) &
560 				  AMDGPU_INFO_MMR_SH_INDEX_MASK;
561 
562 		/* set full masks if the userspace set all bits
563 		 * in the bitfields */
564 		if (se_num == AMDGPU_INFO_MMR_SE_INDEX_MASK)
565 			se_num = 0xffffffff;
566 		if (sh_num == AMDGPU_INFO_MMR_SH_INDEX_MASK)
567 			sh_num = 0xffffffff;
568 
569 		regs = kmalloc_array(info->read_mmr_reg.count, sizeof(*regs), GFP_KERNEL);
570 		if (!regs)
571 			return -ENOMEM;
572 		alloc_size = info->read_mmr_reg.count * sizeof(*regs);
573 
574 		for (i = 0; i < info->read_mmr_reg.count; i++)
575 			if (amdgpu_asic_read_register(adev, se_num, sh_num,
576 						      info->read_mmr_reg.dword_offset + i,
577 						      &regs[i])) {
578 				DRM_DEBUG_KMS("unallowed offset %#x\n",
579 					      info->read_mmr_reg.dword_offset + i);
580 				kfree(regs);
581 				return -EFAULT;
582 			}
583 		n = copy_to_user(out, regs, min(size, alloc_size));
584 		kfree(regs);
585 		return n ? -EFAULT : 0;
586 	}
587 	case AMDGPU_INFO_DEV_INFO: {
588 		struct drm_amdgpu_info_device dev_info = {};
589 		uint64_t vm_size;
590 
591 		dev_info.device_id = dev->pdev->device;
592 		dev_info.chip_rev = adev->rev_id;
593 		dev_info.external_rev = adev->external_rev_id;
594 		dev_info.pci_rev = dev->pdev->revision;
595 		dev_info.family = adev->family;
596 		dev_info.num_shader_engines = adev->gfx.config.max_shader_engines;
597 		dev_info.num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;
598 		/* return all clocks in KHz */
599 		dev_info.gpu_counter_freq = amdgpu_asic_get_xclk(adev) * 10;
600 		if (adev->pm.dpm_enabled) {
601 			dev_info.max_engine_clock = amdgpu_dpm_get_sclk(adev, false) * 10;
602 			dev_info.max_memory_clock = amdgpu_dpm_get_mclk(adev, false) * 10;
603 		} else {
604 			dev_info.max_engine_clock = adev->clock.default_sclk * 10;
605 			dev_info.max_memory_clock = adev->clock.default_mclk * 10;
606 		}
607 		dev_info.enabled_rb_pipes_mask = adev->gfx.config.backend_enable_mask;
608 		dev_info.num_rb_pipes = adev->gfx.config.max_backends_per_se *
609 			adev->gfx.config.max_shader_engines;
610 		dev_info.num_hw_gfx_contexts = adev->gfx.config.max_hw_contexts;
611 		dev_info._pad = 0;
612 		dev_info.ids_flags = 0;
613 		if (adev->flags & AMD_IS_APU)
614 			dev_info.ids_flags |= AMDGPU_IDS_FLAGS_FUSION;
615 		if (amdgpu_sriov_vf(adev))
616 			dev_info.ids_flags |= AMDGPU_IDS_FLAGS_PREEMPTION;
617 
618 		vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
619 		vm_size -= AMDGPU_VA_RESERVED_SIZE;
620 
621 		/* Older VCE FW versions are buggy and can handle only 40bits */
622 		if (adev->vce.fw_version < AMDGPU_VCE_FW_53_45)
623 			vm_size = min(vm_size, 1ULL << 40);
624 
625 		dev_info.virtual_address_offset = AMDGPU_VA_RESERVED_SIZE;
626 		dev_info.virtual_address_max =
627 			min(vm_size, AMDGPU_VA_HOLE_START);
628 
629 		if (vm_size > AMDGPU_VA_HOLE_START) {
630 			dev_info.high_va_offset = AMDGPU_VA_HOLE_END;
631 			dev_info.high_va_max = AMDGPU_VA_HOLE_END | vm_size;
632 		}
633 		dev_info.virtual_address_alignment = max((int)PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE);
634 		dev_info.pte_fragment_size = (1 << adev->vm_manager.fragment_size) * AMDGPU_GPU_PAGE_SIZE;
635 		dev_info.gart_page_size = AMDGPU_GPU_PAGE_SIZE;
636 		dev_info.cu_active_number = adev->gfx.cu_info.number;
637 		dev_info.cu_ao_mask = adev->gfx.cu_info.ao_cu_mask;
638 		dev_info.ce_ram_size = adev->gfx.ce_ram_size;
639 		memcpy(&dev_info.cu_ao_bitmap[0], &adev->gfx.cu_info.ao_cu_bitmap[0],
640 		       sizeof(adev->gfx.cu_info.ao_cu_bitmap));
641 		memcpy(&dev_info.cu_bitmap[0], &adev->gfx.cu_info.bitmap[0],
642 		       sizeof(adev->gfx.cu_info.bitmap));
643 		dev_info.vram_type = adev->gmc.vram_type;
644 		dev_info.vram_bit_width = adev->gmc.vram_width;
645 		dev_info.vce_harvest_config = adev->vce.harvest_config;
646 		dev_info.gc_double_offchip_lds_buf =
647 			adev->gfx.config.double_offchip_lds_buf;
648 
649 		if (amdgpu_ngg) {
650 			dev_info.prim_buf_gpu_addr = adev->gfx.ngg.buf[NGG_PRIM].gpu_addr;
651 			dev_info.prim_buf_size = adev->gfx.ngg.buf[NGG_PRIM].size;
652 			dev_info.pos_buf_gpu_addr = adev->gfx.ngg.buf[NGG_POS].gpu_addr;
653 			dev_info.pos_buf_size = adev->gfx.ngg.buf[NGG_POS].size;
654 			dev_info.cntl_sb_buf_gpu_addr = adev->gfx.ngg.buf[NGG_CNTL].gpu_addr;
655 			dev_info.cntl_sb_buf_size = adev->gfx.ngg.buf[NGG_CNTL].size;
656 			dev_info.param_buf_gpu_addr = adev->gfx.ngg.buf[NGG_PARAM].gpu_addr;
657 			dev_info.param_buf_size = adev->gfx.ngg.buf[NGG_PARAM].size;
658 		}
659 		dev_info.wave_front_size = adev->gfx.cu_info.wave_front_size;
660 		dev_info.num_shader_visible_vgprs = adev->gfx.config.max_gprs;
661 		dev_info.num_cu_per_sh = adev->gfx.config.max_cu_per_sh;
662 		dev_info.num_tcc_blocks = adev->gfx.config.max_texture_channel_caches;
663 		dev_info.gs_vgt_table_depth = adev->gfx.config.gs_vgt_table_depth;
664 		dev_info.gs_prim_buffer_depth = adev->gfx.config.gs_prim_buffer_depth;
665 		dev_info.max_gs_waves_per_vgt = adev->gfx.config.max_gs_threads;
666 
667 		return copy_to_user(out, &dev_info,
668 				    min((size_t)size, sizeof(dev_info))) ? -EFAULT : 0;
669 	}
670 	case AMDGPU_INFO_VCE_CLOCK_TABLE: {
671 		unsigned i;
672 		struct drm_amdgpu_info_vce_clock_table vce_clk_table = {};
673 		struct amd_vce_state *vce_state;
674 
675 		for (i = 0; i < AMDGPU_VCE_CLOCK_TABLE_ENTRIES; i++) {
676 			vce_state = amdgpu_dpm_get_vce_clock_state(adev, i);
677 			if (vce_state) {
678 				vce_clk_table.entries[i].sclk = vce_state->sclk;
679 				vce_clk_table.entries[i].mclk = vce_state->mclk;
680 				vce_clk_table.entries[i].eclk = vce_state->evclk;
681 				vce_clk_table.num_valid_entries++;
682 			}
683 		}
684 
685 		return copy_to_user(out, &vce_clk_table,
686 				    min((size_t)size, sizeof(vce_clk_table))) ? -EFAULT : 0;
687 	}
688 	case AMDGPU_INFO_VBIOS: {
689 		uint32_t bios_size = adev->bios_size;
690 
691 		switch (info->vbios_info.type) {
692 		case AMDGPU_INFO_VBIOS_SIZE:
693 			return copy_to_user(out, &bios_size,
694 					min((size_t)size, sizeof(bios_size)))
695 					? -EFAULT : 0;
696 		case AMDGPU_INFO_VBIOS_IMAGE: {
697 			uint8_t *bios;
698 			uint32_t bios_offset = info->vbios_info.offset;
699 
700 			if (bios_offset >= bios_size)
701 				return -EINVAL;
702 
703 			bios = adev->bios + bios_offset;
704 			return copy_to_user(out, bios,
705 					    min((size_t)size, (size_t)(bios_size - bios_offset)))
706 					? -EFAULT : 0;
707 		}
708 		default:
709 			DRM_DEBUG_KMS("Invalid request %d\n",
710 					info->vbios_info.type);
711 			return -EINVAL;
712 		}
713 	}
714 	case AMDGPU_INFO_NUM_HANDLES: {
715 		struct drm_amdgpu_info_num_handles handle;
716 
717 		switch (info->query_hw_ip.type) {
718 		case AMDGPU_HW_IP_UVD:
719 			/* Starting Polaris, we support unlimited UVD handles */
720 			if (adev->asic_type < CHIP_POLARIS10) {
721 				handle.uvd_max_handles = adev->uvd.max_handles;
722 				handle.uvd_used_handles = amdgpu_uvd_used_handles(adev);
723 
724 				return copy_to_user(out, &handle,
725 					min((size_t)size, sizeof(handle))) ? -EFAULT : 0;
726 			} else {
727 				return -ENODATA;
728 			}
729 
730 			break;
731 		default:
732 			return -EINVAL;
733 		}
734 	}
735 	case AMDGPU_INFO_SENSOR: {
736 		if (!adev->pm.dpm_enabled)
737 			return -ENOENT;
738 
739 		switch (info->sensor_info.type) {
740 		case AMDGPU_INFO_SENSOR_GFX_SCLK:
741 			/* get sclk in Mhz */
742 			if (amdgpu_dpm_read_sensor(adev,
743 						   AMDGPU_PP_SENSOR_GFX_SCLK,
744 						   (void *)&ui32, &ui32_size)) {
745 				return -EINVAL;
746 			}
747 			ui32 /= 100;
748 			break;
749 		case AMDGPU_INFO_SENSOR_GFX_MCLK:
750 			/* get mclk in Mhz */
751 			if (amdgpu_dpm_read_sensor(adev,
752 						   AMDGPU_PP_SENSOR_GFX_MCLK,
753 						   (void *)&ui32, &ui32_size)) {
754 				return -EINVAL;
755 			}
756 			ui32 /= 100;
757 			break;
758 		case AMDGPU_INFO_SENSOR_GPU_TEMP:
759 			/* get temperature in millidegrees C */
760 			if (amdgpu_dpm_read_sensor(adev,
761 						   AMDGPU_PP_SENSOR_GPU_TEMP,
762 						   (void *)&ui32, &ui32_size)) {
763 				return -EINVAL;
764 			}
765 			break;
766 		case AMDGPU_INFO_SENSOR_GPU_LOAD:
767 			/* get GPU load */
768 			if (amdgpu_dpm_read_sensor(adev,
769 						   AMDGPU_PP_SENSOR_GPU_LOAD,
770 						   (void *)&ui32, &ui32_size)) {
771 				return -EINVAL;
772 			}
773 			break;
774 		case AMDGPU_INFO_SENSOR_GPU_AVG_POWER:
775 			/* get average GPU power */
776 			if (amdgpu_dpm_read_sensor(adev,
777 						   AMDGPU_PP_SENSOR_GPU_POWER,
778 						   (void *)&ui32, &ui32_size)) {
779 				return -EINVAL;
780 			}
781 			ui32 >>= 8;
782 			break;
783 		case AMDGPU_INFO_SENSOR_VDDNB:
784 			/* get VDDNB in millivolts */
785 			if (amdgpu_dpm_read_sensor(adev,
786 						   AMDGPU_PP_SENSOR_VDDNB,
787 						   (void *)&ui32, &ui32_size)) {
788 				return -EINVAL;
789 			}
790 			break;
791 		case AMDGPU_INFO_SENSOR_VDDGFX:
792 			/* get VDDGFX in millivolts */
793 			if (amdgpu_dpm_read_sensor(adev,
794 						   AMDGPU_PP_SENSOR_VDDGFX,
795 						   (void *)&ui32, &ui32_size)) {
796 				return -EINVAL;
797 			}
798 			break;
799 		case AMDGPU_INFO_SENSOR_STABLE_PSTATE_GFX_SCLK:
800 			/* get stable pstate sclk in Mhz */
801 			if (amdgpu_dpm_read_sensor(adev,
802 						   AMDGPU_PP_SENSOR_STABLE_PSTATE_SCLK,
803 						   (void *)&ui32, &ui32_size)) {
804 				return -EINVAL;
805 			}
806 			ui32 /= 100;
807 			break;
808 		case AMDGPU_INFO_SENSOR_STABLE_PSTATE_GFX_MCLK:
809 			/* get stable pstate mclk in Mhz */
810 			if (amdgpu_dpm_read_sensor(adev,
811 						   AMDGPU_PP_SENSOR_STABLE_PSTATE_MCLK,
812 						   (void *)&ui32, &ui32_size)) {
813 				return -EINVAL;
814 			}
815 			ui32 /= 100;
816 			break;
817 		default:
818 			DRM_DEBUG_KMS("Invalid request %d\n",
819 				      info->sensor_info.type);
820 			return -EINVAL;
821 		}
822 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
823 	}
824 	case AMDGPU_INFO_VRAM_LOST_COUNTER:
825 		ui32 = atomic_read(&adev->vram_lost_counter);
826 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
827 	default:
828 		DRM_DEBUG_KMS("Invalid request %d\n", info->query);
829 		return -EINVAL;
830 	}
831 	return 0;
832 }
833 
834 
835 /*
836  * Outdated mess for old drm with Xorg being in charge (void function now).
837  */
838 /**
839  * amdgpu_driver_lastclose_kms - drm callback for last close
840  *
841  * @dev: drm dev pointer
842  *
843  * Switch vga_switcheroo state after last close (all asics).
844  */
845 void amdgpu_driver_lastclose_kms(struct drm_device *dev)
846 {
847 	drm_fb_helper_lastclose(dev);
848 	vga_switcheroo_process_delayed_switch();
849 }
850 
851 /**
852  * amdgpu_driver_open_kms - drm callback for open
853  *
854  * @dev: drm dev pointer
855  * @file_priv: drm file
856  *
857  * On device open, init vm on cayman+ (all asics).
858  * Returns 0 on success, error on failure.
859  */
860 int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
861 {
862 	struct amdgpu_device *adev = dev->dev_private;
863 	struct amdgpu_fpriv *fpriv;
864 	int r, pasid;
865 
866 	file_priv->driver_priv = NULL;
867 
868 	r = pm_runtime_get_sync(dev->dev);
869 	if (r < 0)
870 		return r;
871 
872 	fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
873 	if (unlikely(!fpriv)) {
874 		r = -ENOMEM;
875 		goto out_suspend;
876 	}
877 
878 	pasid = amdgpu_pasid_alloc(16);
879 	if (pasid < 0) {
880 		dev_warn(adev->dev, "No more PASIDs available!");
881 		pasid = 0;
882 	}
883 	r = amdgpu_vm_init(adev, &fpriv->vm, AMDGPU_VM_CONTEXT_GFX, pasid);
884 	if (r)
885 		goto error_pasid;
886 
887 	fpriv->prt_va = amdgpu_vm_bo_add(adev, &fpriv->vm, NULL);
888 	if (!fpriv->prt_va) {
889 		r = -ENOMEM;
890 		goto error_vm;
891 	}
892 
893 	if (amdgpu_sriov_vf(adev)) {
894 		r = amdgpu_map_static_csa(adev, &fpriv->vm, &fpriv->csa_va);
895 		if (r)
896 			goto error_vm;
897 	}
898 
899 	mutex_init(&fpriv->bo_list_lock);
900 	idr_init(&fpriv->bo_list_handles);
901 
902 	amdgpu_ctx_mgr_init(&fpriv->ctx_mgr);
903 
904 	file_priv->driver_priv = fpriv;
905 	goto out_suspend;
906 
907 error_vm:
908 	amdgpu_vm_fini(adev, &fpriv->vm);
909 
910 error_pasid:
911 	if (pasid)
912 		amdgpu_pasid_free(pasid);
913 
914 	kfree(fpriv);
915 
916 out_suspend:
917 	pm_runtime_mark_last_busy(dev->dev);
918 	pm_runtime_put_autosuspend(dev->dev);
919 
920 	return r;
921 }
922 
923 /**
924  * amdgpu_driver_postclose_kms - drm callback for post close
925  *
926  * @dev: drm dev pointer
927  * @file_priv: drm file
928  *
929  * On device post close, tear down vm on cayman+ (all asics).
930  */
931 void amdgpu_driver_postclose_kms(struct drm_device *dev,
932 				 struct drm_file *file_priv)
933 {
934 	struct amdgpu_device *adev = dev->dev_private;
935 	struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
936 	struct amdgpu_bo_list *list;
937 	struct amdgpu_bo *pd;
938 	unsigned int pasid;
939 	int handle;
940 
941 	if (!fpriv)
942 		return;
943 
944 	pm_runtime_get_sync(dev->dev);
945 
946 	if (adev->asic_type != CHIP_RAVEN) {
947 		amdgpu_uvd_free_handles(adev, file_priv);
948 		amdgpu_vce_free_handles(adev, file_priv);
949 	}
950 
951 	amdgpu_vm_bo_rmv(adev, fpriv->prt_va);
952 
953 	if (amdgpu_sriov_vf(adev)) {
954 		/* TODO: how to handle reserve failure */
955 		BUG_ON(amdgpu_bo_reserve(adev->virt.csa_obj, true));
956 		amdgpu_vm_bo_rmv(adev, fpriv->csa_va);
957 		fpriv->csa_va = NULL;
958 		amdgpu_bo_unreserve(adev->virt.csa_obj);
959 	}
960 
961 	pasid = fpriv->vm.pasid;
962 	pd = amdgpu_bo_ref(fpriv->vm.root.base.bo);
963 
964 	amdgpu_vm_fini(adev, &fpriv->vm);
965 	amdgpu_ctx_mgr_fini(&fpriv->ctx_mgr);
966 
967 	if (pasid)
968 		amdgpu_pasid_free_delayed(pd->tbo.resv, pasid);
969 	amdgpu_bo_unref(&pd);
970 
971 	idr_for_each_entry(&fpriv->bo_list_handles, list, handle)
972 		amdgpu_bo_list_put(list);
973 
974 	idr_destroy(&fpriv->bo_list_handles);
975 	mutex_destroy(&fpriv->bo_list_lock);
976 
977 	kfree(fpriv);
978 	file_priv->driver_priv = NULL;
979 
980 	pm_runtime_mark_last_busy(dev->dev);
981 	pm_runtime_put_autosuspend(dev->dev);
982 }
983 
984 /*
985  * VBlank related functions.
986  */
987 /**
988  * amdgpu_get_vblank_counter_kms - get frame count
989  *
990  * @dev: drm dev pointer
991  * @pipe: crtc to get the frame count from
992  *
993  * Gets the frame count on the requested crtc (all asics).
994  * Returns frame count on success, -EINVAL on failure.
995  */
996 u32 amdgpu_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe)
997 {
998 	struct amdgpu_device *adev = dev->dev_private;
999 	int vpos, hpos, stat;
1000 	u32 count;
1001 
1002 	if (pipe >= adev->mode_info.num_crtc) {
1003 		DRM_ERROR("Invalid crtc %u\n", pipe);
1004 		return -EINVAL;
1005 	}
1006 
1007 	/* The hw increments its frame counter at start of vsync, not at start
1008 	 * of vblank, as is required by DRM core vblank counter handling.
1009 	 * Cook the hw count here to make it appear to the caller as if it
1010 	 * incremented at start of vblank. We measure distance to start of
1011 	 * vblank in vpos. vpos therefore will be >= 0 between start of vblank
1012 	 * and start of vsync, so vpos >= 0 means to bump the hw frame counter
1013 	 * result by 1 to give the proper appearance to caller.
1014 	 */
1015 	if (adev->mode_info.crtcs[pipe]) {
1016 		/* Repeat readout if needed to provide stable result if
1017 		 * we cross start of vsync during the queries.
1018 		 */
1019 		do {
1020 			count = amdgpu_display_vblank_get_counter(adev, pipe);
1021 			/* Ask amdgpu_display_get_crtc_scanoutpos to return
1022 			 * vpos as distance to start of vblank, instead of
1023 			 * regular vertical scanout pos.
1024 			 */
1025 			stat = amdgpu_display_get_crtc_scanoutpos(
1026 				dev, pipe, GET_DISTANCE_TO_VBLANKSTART,
1027 				&vpos, &hpos, NULL, NULL,
1028 				&adev->mode_info.crtcs[pipe]->base.hwmode);
1029 		} while (count != amdgpu_display_vblank_get_counter(adev, pipe));
1030 
1031 		if (((stat & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE)) !=
1032 		    (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE))) {
1033 			DRM_DEBUG_VBL("Query failed! stat %d\n", stat);
1034 		} else {
1035 			DRM_DEBUG_VBL("crtc %d: dist from vblank start %d\n",
1036 				      pipe, vpos);
1037 
1038 			/* Bump counter if we are at >= leading edge of vblank,
1039 			 * but before vsync where vpos would turn negative and
1040 			 * the hw counter really increments.
1041 			 */
1042 			if (vpos >= 0)
1043 				count++;
1044 		}
1045 	} else {
1046 		/* Fallback to use value as is. */
1047 		count = amdgpu_display_vblank_get_counter(adev, pipe);
1048 		DRM_DEBUG_VBL("NULL mode info! Returned count may be wrong.\n");
1049 	}
1050 
1051 	return count;
1052 }
1053 
1054 /**
1055  * amdgpu_enable_vblank_kms - enable vblank interrupt
1056  *
1057  * @dev: drm dev pointer
1058  * @pipe: crtc to enable vblank interrupt for
1059  *
1060  * Enable the interrupt on the requested crtc (all asics).
1061  * Returns 0 on success, -EINVAL on failure.
1062  */
1063 int amdgpu_enable_vblank_kms(struct drm_device *dev, unsigned int pipe)
1064 {
1065 	struct amdgpu_device *adev = dev->dev_private;
1066 	int idx = amdgpu_display_crtc_idx_to_irq_type(adev, pipe);
1067 
1068 	return amdgpu_irq_get(adev, &adev->crtc_irq, idx);
1069 }
1070 
1071 /**
1072  * amdgpu_disable_vblank_kms - disable vblank interrupt
1073  *
1074  * @dev: drm dev pointer
1075  * @pipe: crtc to disable vblank interrupt for
1076  *
1077  * Disable the interrupt on the requested crtc (all asics).
1078  */
1079 void amdgpu_disable_vblank_kms(struct drm_device *dev, unsigned int pipe)
1080 {
1081 	struct amdgpu_device *adev = dev->dev_private;
1082 	int idx = amdgpu_display_crtc_idx_to_irq_type(adev, pipe);
1083 
1084 	amdgpu_irq_put(adev, &adev->crtc_irq, idx);
1085 }
1086 
1087 const struct drm_ioctl_desc amdgpu_ioctls_kms[] = {
1088 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_CREATE, amdgpu_gem_create_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1089 	DRM_IOCTL_DEF_DRV(AMDGPU_CTX, amdgpu_ctx_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1090 	DRM_IOCTL_DEF_DRV(AMDGPU_VM, amdgpu_vm_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1091 	DRM_IOCTL_DEF_DRV(AMDGPU_SCHED, amdgpu_sched_ioctl, DRM_MASTER),
1092 	DRM_IOCTL_DEF_DRV(AMDGPU_BO_LIST, amdgpu_bo_list_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1093 	DRM_IOCTL_DEF_DRV(AMDGPU_FENCE_TO_HANDLE, amdgpu_cs_fence_to_handle_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1094 	/* KMS */
1095 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_MMAP, amdgpu_gem_mmap_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1096 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_WAIT_IDLE, amdgpu_gem_wait_idle_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1097 	DRM_IOCTL_DEF_DRV(AMDGPU_CS, amdgpu_cs_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1098 	DRM_IOCTL_DEF_DRV(AMDGPU_INFO, amdgpu_info_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1099 	DRM_IOCTL_DEF_DRV(AMDGPU_WAIT_CS, amdgpu_cs_wait_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1100 	DRM_IOCTL_DEF_DRV(AMDGPU_WAIT_FENCES, amdgpu_cs_wait_fences_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1101 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_METADATA, amdgpu_gem_metadata_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1102 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_VA, amdgpu_gem_va_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1103 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_OP, amdgpu_gem_op_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
1104 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_USERPTR, amdgpu_gem_userptr_ioctl, DRM_AUTH|DRM_RENDER_ALLOW)
1105 };
1106 const int amdgpu_max_kms_ioctl = ARRAY_SIZE(amdgpu_ioctls_kms);
1107 
1108 /*
1109  * Debugfs info
1110  */
1111 #if defined(CONFIG_DEBUG_FS)
1112 
1113 static int amdgpu_debugfs_firmware_info(struct seq_file *m, void *data)
1114 {
1115 	struct drm_info_node *node = (struct drm_info_node *) m->private;
1116 	struct drm_device *dev = node->minor->dev;
1117 	struct amdgpu_device *adev = dev->dev_private;
1118 	struct drm_amdgpu_info_firmware fw_info;
1119 	struct drm_amdgpu_query_fw query_fw;
1120 	struct atom_context *ctx = adev->mode_info.atom_context;
1121 	int ret, i;
1122 
1123 	/* VCE */
1124 	query_fw.fw_type = AMDGPU_INFO_FW_VCE;
1125 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1126 	if (ret)
1127 		return ret;
1128 	seq_printf(m, "VCE feature version: %u, firmware version: 0x%08x\n",
1129 		   fw_info.feature, fw_info.ver);
1130 
1131 	/* UVD */
1132 	query_fw.fw_type = AMDGPU_INFO_FW_UVD;
1133 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1134 	if (ret)
1135 		return ret;
1136 	seq_printf(m, "UVD feature version: %u, firmware version: 0x%08x\n",
1137 		   fw_info.feature, fw_info.ver);
1138 
1139 	/* GMC */
1140 	query_fw.fw_type = AMDGPU_INFO_FW_GMC;
1141 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1142 	if (ret)
1143 		return ret;
1144 	seq_printf(m, "MC feature version: %u, firmware version: 0x%08x\n",
1145 		   fw_info.feature, fw_info.ver);
1146 
1147 	/* ME */
1148 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_ME;
1149 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1150 	if (ret)
1151 		return ret;
1152 	seq_printf(m, "ME feature version: %u, firmware version: 0x%08x\n",
1153 		   fw_info.feature, fw_info.ver);
1154 
1155 	/* PFP */
1156 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_PFP;
1157 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1158 	if (ret)
1159 		return ret;
1160 	seq_printf(m, "PFP feature version: %u, firmware version: 0x%08x\n",
1161 		   fw_info.feature, fw_info.ver);
1162 
1163 	/* CE */
1164 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_CE;
1165 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1166 	if (ret)
1167 		return ret;
1168 	seq_printf(m, "CE feature version: %u, firmware version: 0x%08x\n",
1169 		   fw_info.feature, fw_info.ver);
1170 
1171 	/* RLC */
1172 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_RLC;
1173 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1174 	if (ret)
1175 		return ret;
1176 	seq_printf(m, "RLC feature version: %u, firmware version: 0x%08x\n",
1177 		   fw_info.feature, fw_info.ver);
1178 
1179 	/* RLC SAVE RESTORE LIST CNTL */
1180 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_CNTL;
1181 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1182 	if (ret)
1183 		return ret;
1184 	seq_printf(m, "RLC SRLC feature version: %u, firmware version: 0x%08x\n",
1185 		   fw_info.feature, fw_info.ver);
1186 
1187 	/* RLC SAVE RESTORE LIST GPM MEM */
1188 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_GPM_MEM;
1189 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1190 	if (ret)
1191 		return ret;
1192 	seq_printf(m, "RLC SRLG feature version: %u, firmware version: 0x%08x\n",
1193 		   fw_info.feature, fw_info.ver);
1194 
1195 	/* RLC SAVE RESTORE LIST SRM MEM */
1196 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_RLC_RESTORE_LIST_SRM_MEM;
1197 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1198 	if (ret)
1199 		return ret;
1200 	seq_printf(m, "RLC SRLS feature version: %u, firmware version: 0x%08x\n",
1201 		   fw_info.feature, fw_info.ver);
1202 
1203 	/* MEC */
1204 	query_fw.fw_type = AMDGPU_INFO_FW_GFX_MEC;
1205 	query_fw.index = 0;
1206 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1207 	if (ret)
1208 		return ret;
1209 	seq_printf(m, "MEC feature version: %u, firmware version: 0x%08x\n",
1210 		   fw_info.feature, fw_info.ver);
1211 
1212 	/* MEC2 */
1213 	if (adev->asic_type == CHIP_KAVERI ||
1214 	    (adev->asic_type > CHIP_TOPAZ && adev->asic_type != CHIP_STONEY)) {
1215 		query_fw.index = 1;
1216 		ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1217 		if (ret)
1218 			return ret;
1219 		seq_printf(m, "MEC2 feature version: %u, firmware version: 0x%08x\n",
1220 			   fw_info.feature, fw_info.ver);
1221 	}
1222 
1223 	/* PSP SOS */
1224 	query_fw.fw_type = AMDGPU_INFO_FW_SOS;
1225 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1226 	if (ret)
1227 		return ret;
1228 	seq_printf(m, "SOS feature version: %u, firmware version: 0x%08x\n",
1229 		   fw_info.feature, fw_info.ver);
1230 
1231 
1232 	/* PSP ASD */
1233 	query_fw.fw_type = AMDGPU_INFO_FW_ASD;
1234 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1235 	if (ret)
1236 		return ret;
1237 	seq_printf(m, "ASD feature version: %u, firmware version: 0x%08x\n",
1238 		   fw_info.feature, fw_info.ver);
1239 
1240 	/* SMC */
1241 	query_fw.fw_type = AMDGPU_INFO_FW_SMC;
1242 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1243 	if (ret)
1244 		return ret;
1245 	seq_printf(m, "SMC feature version: %u, firmware version: 0x%08x\n",
1246 		   fw_info.feature, fw_info.ver);
1247 
1248 	/* SDMA */
1249 	query_fw.fw_type = AMDGPU_INFO_FW_SDMA;
1250 	for (i = 0; i < adev->sdma.num_instances; i++) {
1251 		query_fw.index = i;
1252 		ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1253 		if (ret)
1254 			return ret;
1255 		seq_printf(m, "SDMA%d feature version: %u, firmware version: 0x%08x\n",
1256 			   i, fw_info.feature, fw_info.ver);
1257 	}
1258 
1259 	/* VCN */
1260 	query_fw.fw_type = AMDGPU_INFO_FW_VCN;
1261 	ret = amdgpu_firmware_info(&fw_info, &query_fw, adev);
1262 	if (ret)
1263 		return ret;
1264 	seq_printf(m, "VCN feature version: %u, firmware version: 0x%08x\n",
1265 		   fw_info.feature, fw_info.ver);
1266 
1267 
1268 	seq_printf(m, "VBIOS version: %s\n", ctx->vbios_version);
1269 
1270 	return 0;
1271 }
1272 
1273 static const struct drm_info_list amdgpu_firmware_info_list[] = {
1274 	{"amdgpu_firmware_info", amdgpu_debugfs_firmware_info, 0, NULL},
1275 };
1276 #endif
1277 
1278 int amdgpu_debugfs_firmware_init(struct amdgpu_device *adev)
1279 {
1280 #if defined(CONFIG_DEBUG_FS)
1281 	return amdgpu_debugfs_add_files(adev, amdgpu_firmware_info_list,
1282 					ARRAY_SIZE(amdgpu_firmware_info_list));
1283 #else
1284 	return 0;
1285 #endif
1286 }
1287