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_uvd.h"
32 #include "amdgpu_vce.h"
33 
34 #include <linux/vga_switcheroo.h>
35 #include <linux/slab.h>
36 #include <linux/pm_runtime.h>
37 #include "amdgpu_amdkfd.h"
38 
39 #if defined(CONFIG_VGA_SWITCHEROO)
40 bool amdgpu_has_atpx(void);
41 #else
42 static inline bool amdgpu_has_atpx(void) { return false; }
43 #endif
44 
45 /**
46  * amdgpu_driver_unload_kms - Main unload function for KMS.
47  *
48  * @dev: drm dev pointer
49  *
50  * This is the main unload function for KMS (all asics).
51  * Returns 0 on success.
52  */
53 int amdgpu_driver_unload_kms(struct drm_device *dev)
54 {
55 	struct amdgpu_device *adev = dev->dev_private;
56 
57 	if (adev == NULL)
58 		return 0;
59 
60 	if (adev->rmmio == NULL)
61 		goto done_free;
62 
63 	pm_runtime_get_sync(dev->dev);
64 
65 	amdgpu_amdkfd_device_fini(adev);
66 
67 	amdgpu_acpi_fini(adev);
68 
69 	amdgpu_device_fini(adev);
70 
71 done_free:
72 	kfree(adev);
73 	dev->dev_private = NULL;
74 	return 0;
75 }
76 
77 /**
78  * amdgpu_driver_load_kms - Main load function for KMS.
79  *
80  * @dev: drm dev pointer
81  * @flags: device flags
82  *
83  * This is the main load function for KMS (all asics).
84  * Returns 0 on success, error on failure.
85  */
86 int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
87 {
88 	struct amdgpu_device *adev;
89 	int r, acpi_status;
90 
91 	adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL);
92 	if (adev == NULL) {
93 		return -ENOMEM;
94 	}
95 	dev->dev_private = (void *)adev;
96 
97 	if ((amdgpu_runtime_pm != 0) &&
98 	    amdgpu_has_atpx() &&
99 	    ((flags & AMD_IS_APU) == 0))
100 		flags |= AMD_IS_PX;
101 
102 	/* amdgpu_device_init should report only fatal error
103 	 * like memory allocation failure or iomapping failure,
104 	 * or memory manager initialization failure, it must
105 	 * properly initialize the GPU MC controller and permit
106 	 * VRAM allocation
107 	 */
108 	r = amdgpu_device_init(adev, dev, dev->pdev, flags);
109 	if (r) {
110 		dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
111 		goto out;
112 	}
113 
114 	/* Call ACPI methods: require modeset init
115 	 * but failure is not fatal
116 	 */
117 	if (!r) {
118 		acpi_status = amdgpu_acpi_init(adev);
119 		if (acpi_status)
120 		dev_dbg(&dev->pdev->dev,
121 				"Error during ACPI methods call\n");
122 	}
123 
124 	amdgpu_amdkfd_load_interface(adev);
125 	amdgpu_amdkfd_device_probe(adev);
126 	amdgpu_amdkfd_device_init(adev);
127 
128 	if (amdgpu_device_is_px(dev)) {
129 		pm_runtime_use_autosuspend(dev->dev);
130 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
131 		pm_runtime_set_active(dev->dev);
132 		pm_runtime_allow(dev->dev);
133 		pm_runtime_mark_last_busy(dev->dev);
134 		pm_runtime_put_autosuspend(dev->dev);
135 	}
136 
137 out:
138 	if (r)
139 		amdgpu_driver_unload_kms(dev);
140 
141 
142 	return r;
143 }
144 
145 /*
146  * Userspace get information ioctl
147  */
148 /**
149  * amdgpu_info_ioctl - answer a device specific request.
150  *
151  * @adev: amdgpu device pointer
152  * @data: request object
153  * @filp: drm filp
154  *
155  * This function is used to pass device specific parameters to the userspace
156  * drivers.  Examples include: pci device id, pipeline parms, tiling params,
157  * etc. (all asics).
158  * Returns 0 on success, -EINVAL on failure.
159  */
160 static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
161 {
162 	struct amdgpu_device *adev = dev->dev_private;
163 	struct drm_amdgpu_info *info = data;
164 	struct amdgpu_mode_info *minfo = &adev->mode_info;
165 	void __user *out = (void __user *)(long)info->return_pointer;
166 	uint32_t size = info->return_size;
167 	struct drm_crtc *crtc;
168 	uint32_t ui32 = 0;
169 	uint64_t ui64 = 0;
170 	int i, found;
171 
172 	if (!info->return_size || !info->return_pointer)
173 		return -EINVAL;
174 
175 	switch (info->query) {
176 	case AMDGPU_INFO_ACCEL_WORKING:
177 		ui32 = adev->accel_working;
178 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
179 	case AMDGPU_INFO_CRTC_FROM_ID:
180 		for (i = 0, found = 0; i < adev->mode_info.num_crtc; i++) {
181 			crtc = (struct drm_crtc *)minfo->crtcs[i];
182 			if (crtc && crtc->base.id == info->mode_crtc.id) {
183 				struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
184 				ui32 = amdgpu_crtc->crtc_id;
185 				found = 1;
186 				break;
187 			}
188 		}
189 		if (!found) {
190 			DRM_DEBUG_KMS("unknown crtc id %d\n", info->mode_crtc.id);
191 			return -EINVAL;
192 		}
193 		return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
194 	case AMDGPU_INFO_HW_IP_INFO: {
195 		struct drm_amdgpu_info_hw_ip ip = {};
196 		enum amd_ip_block_type type;
197 		uint32_t ring_mask = 0;
198 		uint32_t ib_start_alignment = 0;
199 		uint32_t ib_size_alignment = 0;
200 
201 		if (info->query_hw_ip.ip_instance >= AMDGPU_HW_IP_INSTANCE_MAX_COUNT)
202 			return -EINVAL;
203 
204 		switch (info->query_hw_ip.type) {
205 		case AMDGPU_HW_IP_GFX:
206 			type = AMD_IP_BLOCK_TYPE_GFX;
207 			for (i = 0; i < adev->gfx.num_gfx_rings; i++)
208 				ring_mask |= ((adev->gfx.gfx_ring[i].ready ? 1 : 0) << i);
209 			ib_start_alignment = AMDGPU_GPU_PAGE_SIZE;
210 			ib_size_alignment = 8;
211 			break;
212 		case AMDGPU_HW_IP_COMPUTE:
213 			type = AMD_IP_BLOCK_TYPE_GFX;
214 			for (i = 0; i < adev->gfx.num_compute_rings; i++)
215 				ring_mask |= ((adev->gfx.compute_ring[i].ready ? 1 : 0) << i);
216 			ib_start_alignment = AMDGPU_GPU_PAGE_SIZE;
217 			ib_size_alignment = 8;
218 			break;
219 		case AMDGPU_HW_IP_DMA:
220 			type = AMD_IP_BLOCK_TYPE_SDMA;
221 			for (i = 0; i < adev->sdma.num_instances; i++)
222 				ring_mask |= ((adev->sdma.instance[i].ring.ready ? 1 : 0) << i);
223 			ib_start_alignment = AMDGPU_GPU_PAGE_SIZE;
224 			ib_size_alignment = 1;
225 			break;
226 		case AMDGPU_HW_IP_UVD:
227 			type = AMD_IP_BLOCK_TYPE_UVD;
228 			ring_mask = adev->uvd.ring.ready ? 1 : 0;
229 			ib_start_alignment = AMDGPU_GPU_PAGE_SIZE;
230 			ib_size_alignment = 8;
231 			break;
232 		case AMDGPU_HW_IP_VCE:
233 			type = AMD_IP_BLOCK_TYPE_VCE;
234 			for (i = 0; i < AMDGPU_MAX_VCE_RINGS; i++)
235 				ring_mask |= ((adev->vce.ring[i].ready ? 1 : 0) << i);
236 			ib_start_alignment = AMDGPU_GPU_PAGE_SIZE;
237 			ib_size_alignment = 8;
238 			break;
239 		default:
240 			return -EINVAL;
241 		}
242 
243 		for (i = 0; i < adev->num_ip_blocks; i++) {
244 			if (adev->ip_blocks[i].type == type &&
245 			    adev->ip_block_status[i].valid) {
246 				ip.hw_ip_version_major = adev->ip_blocks[i].major;
247 				ip.hw_ip_version_minor = adev->ip_blocks[i].minor;
248 				ip.capabilities_flags = 0;
249 				ip.available_rings = ring_mask;
250 				ip.ib_start_alignment = ib_start_alignment;
251 				ip.ib_size_alignment = ib_size_alignment;
252 				break;
253 			}
254 		}
255 		return copy_to_user(out, &ip,
256 				    min((size_t)size, sizeof(ip))) ? -EFAULT : 0;
257 	}
258 	case AMDGPU_INFO_HW_IP_COUNT: {
259 		enum amd_ip_block_type type;
260 		uint32_t count = 0;
261 
262 		switch (info->query_hw_ip.type) {
263 		case AMDGPU_HW_IP_GFX:
264 			type = AMD_IP_BLOCK_TYPE_GFX;
265 			break;
266 		case AMDGPU_HW_IP_COMPUTE:
267 			type = AMD_IP_BLOCK_TYPE_GFX;
268 			break;
269 		case AMDGPU_HW_IP_DMA:
270 			type = AMD_IP_BLOCK_TYPE_SDMA;
271 			break;
272 		case AMDGPU_HW_IP_UVD:
273 			type = AMD_IP_BLOCK_TYPE_UVD;
274 			break;
275 		case AMDGPU_HW_IP_VCE:
276 			type = AMD_IP_BLOCK_TYPE_VCE;
277 			break;
278 		default:
279 			return -EINVAL;
280 		}
281 
282 		for (i = 0; i < adev->num_ip_blocks; i++)
283 			if (adev->ip_blocks[i].type == type &&
284 			    adev->ip_block_status[i].valid &&
285 			    count < AMDGPU_HW_IP_INSTANCE_MAX_COUNT)
286 				count++;
287 
288 		return copy_to_user(out, &count, min(size, 4u)) ? -EFAULT : 0;
289 	}
290 	case AMDGPU_INFO_TIMESTAMP:
291 		ui64 = amdgpu_asic_get_gpu_clock_counter(adev);
292 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
293 	case AMDGPU_INFO_FW_VERSION: {
294 		struct drm_amdgpu_info_firmware fw_info;
295 
296 		/* We only support one instance of each IP block right now. */
297 		if (info->query_fw.ip_instance != 0)
298 			return -EINVAL;
299 
300 		switch (info->query_fw.fw_type) {
301 		case AMDGPU_INFO_FW_VCE:
302 			fw_info.ver = adev->vce.fw_version;
303 			fw_info.feature = adev->vce.fb_version;
304 			break;
305 		case AMDGPU_INFO_FW_UVD:
306 			fw_info.ver = 0;
307 			fw_info.feature = 0;
308 			break;
309 		case AMDGPU_INFO_FW_GMC:
310 			fw_info.ver = adev->mc.fw_version;
311 			fw_info.feature = 0;
312 			break;
313 		case AMDGPU_INFO_FW_GFX_ME:
314 			fw_info.ver = adev->gfx.me_fw_version;
315 			fw_info.feature = adev->gfx.me_feature_version;
316 			break;
317 		case AMDGPU_INFO_FW_GFX_PFP:
318 			fw_info.ver = adev->gfx.pfp_fw_version;
319 			fw_info.feature = adev->gfx.pfp_feature_version;
320 			break;
321 		case AMDGPU_INFO_FW_GFX_CE:
322 			fw_info.ver = adev->gfx.ce_fw_version;
323 			fw_info.feature = adev->gfx.ce_feature_version;
324 			break;
325 		case AMDGPU_INFO_FW_GFX_RLC:
326 			fw_info.ver = adev->gfx.rlc_fw_version;
327 			fw_info.feature = adev->gfx.rlc_feature_version;
328 			break;
329 		case AMDGPU_INFO_FW_GFX_MEC:
330 			if (info->query_fw.index == 0) {
331 				fw_info.ver = adev->gfx.mec_fw_version;
332 				fw_info.feature = adev->gfx.mec_feature_version;
333 			} else if (info->query_fw.index == 1) {
334 				fw_info.ver = adev->gfx.mec2_fw_version;
335 				fw_info.feature = adev->gfx.mec2_feature_version;
336 			} else
337 				return -EINVAL;
338 			break;
339 		case AMDGPU_INFO_FW_SMC:
340 			fw_info.ver = adev->pm.fw_version;
341 			fw_info.feature = 0;
342 			break;
343 		case AMDGPU_INFO_FW_SDMA:
344 			if (info->query_fw.index >= adev->sdma.num_instances)
345 				return -EINVAL;
346 			fw_info.ver = adev->sdma.instance[info->query_fw.index].fw_version;
347 			fw_info.feature = adev->sdma.instance[info->query_fw.index].feature_version;
348 			break;
349 		default:
350 			return -EINVAL;
351 		}
352 		return copy_to_user(out, &fw_info,
353 				    min((size_t)size, sizeof(fw_info))) ? -EFAULT : 0;
354 	}
355 	case AMDGPU_INFO_NUM_BYTES_MOVED:
356 		ui64 = atomic64_read(&adev->num_bytes_moved);
357 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
358 	case AMDGPU_INFO_VRAM_USAGE:
359 		ui64 = atomic64_read(&adev->vram_usage);
360 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
361 	case AMDGPU_INFO_VIS_VRAM_USAGE:
362 		ui64 = atomic64_read(&adev->vram_vis_usage);
363 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
364 	case AMDGPU_INFO_GTT_USAGE:
365 		ui64 = atomic64_read(&adev->gtt_usage);
366 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
367 	case AMDGPU_INFO_GDS_CONFIG: {
368 		struct drm_amdgpu_info_gds gds_info;
369 
370 		memset(&gds_info, 0, sizeof(gds_info));
371 		gds_info.gds_gfx_partition_size = adev->gds.mem.gfx_partition_size >> AMDGPU_GDS_SHIFT;
372 		gds_info.compute_partition_size = adev->gds.mem.cs_partition_size >> AMDGPU_GDS_SHIFT;
373 		gds_info.gds_total_size = adev->gds.mem.total_size >> AMDGPU_GDS_SHIFT;
374 		gds_info.gws_per_gfx_partition = adev->gds.gws.gfx_partition_size >> AMDGPU_GWS_SHIFT;
375 		gds_info.gws_per_compute_partition = adev->gds.gws.cs_partition_size >> AMDGPU_GWS_SHIFT;
376 		gds_info.oa_per_gfx_partition = adev->gds.oa.gfx_partition_size >> AMDGPU_OA_SHIFT;
377 		gds_info.oa_per_compute_partition = adev->gds.oa.cs_partition_size >> AMDGPU_OA_SHIFT;
378 		return copy_to_user(out, &gds_info,
379 				    min((size_t)size, sizeof(gds_info))) ? -EFAULT : 0;
380 	}
381 	case AMDGPU_INFO_VRAM_GTT: {
382 		struct drm_amdgpu_info_vram_gtt vram_gtt;
383 
384 		vram_gtt.vram_size = adev->mc.real_vram_size;
385 		vram_gtt.vram_cpu_accessible_size = adev->mc.visible_vram_size;
386 		vram_gtt.vram_cpu_accessible_size -= adev->vram_pin_size;
387 		vram_gtt.gtt_size  = adev->mc.gtt_size;
388 		vram_gtt.gtt_size -= adev->gart_pin_size;
389 		return copy_to_user(out, &vram_gtt,
390 				    min((size_t)size, sizeof(vram_gtt))) ? -EFAULT : 0;
391 	}
392 	case AMDGPU_INFO_READ_MMR_REG: {
393 		unsigned n, alloc_size;
394 		uint32_t *regs;
395 		unsigned se_num = (info->read_mmr_reg.instance >>
396 				   AMDGPU_INFO_MMR_SE_INDEX_SHIFT) &
397 				  AMDGPU_INFO_MMR_SE_INDEX_MASK;
398 		unsigned sh_num = (info->read_mmr_reg.instance >>
399 				   AMDGPU_INFO_MMR_SH_INDEX_SHIFT) &
400 				  AMDGPU_INFO_MMR_SH_INDEX_MASK;
401 
402 		/* set full masks if the userspace set all bits
403 		 * in the bitfields */
404 		if (se_num == AMDGPU_INFO_MMR_SE_INDEX_MASK)
405 			se_num = 0xffffffff;
406 		if (sh_num == AMDGPU_INFO_MMR_SH_INDEX_MASK)
407 			sh_num = 0xffffffff;
408 
409 		regs = kmalloc_array(info->read_mmr_reg.count, sizeof(*regs), GFP_KERNEL);
410 		if (!regs)
411 			return -ENOMEM;
412 		alloc_size = info->read_mmr_reg.count * sizeof(*regs);
413 
414 		for (i = 0; i < info->read_mmr_reg.count; i++)
415 			if (amdgpu_asic_read_register(adev, se_num, sh_num,
416 						      info->read_mmr_reg.dword_offset + i,
417 						      &regs[i])) {
418 				DRM_DEBUG_KMS("unallowed offset %#x\n",
419 					      info->read_mmr_reg.dword_offset + i);
420 				kfree(regs);
421 				return -EFAULT;
422 			}
423 		n = copy_to_user(out, regs, min(size, alloc_size));
424 		kfree(regs);
425 		return n ? -EFAULT : 0;
426 	}
427 	case AMDGPU_INFO_DEV_INFO: {
428 		struct drm_amdgpu_info_device dev_info = {};
429 		struct amdgpu_cu_info cu_info;
430 
431 		dev_info.device_id = dev->pdev->device;
432 		dev_info.chip_rev = adev->rev_id;
433 		dev_info.external_rev = adev->external_rev_id;
434 		dev_info.pci_rev = dev->pdev->revision;
435 		dev_info.family = adev->family;
436 		dev_info.num_shader_engines = adev->gfx.config.max_shader_engines;
437 		dev_info.num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;
438 		/* return all clocks in KHz */
439 		dev_info.gpu_counter_freq = amdgpu_asic_get_xclk(adev) * 10;
440 		if (adev->pm.dpm_enabled) {
441 			dev_info.max_engine_clock =
442 				adev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk * 10;
443 			dev_info.max_memory_clock =
444 				adev->pm.dpm.dyn_state.max_clock_voltage_on_ac.mclk * 10;
445 		} else {
446 			dev_info.max_engine_clock = adev->pm.default_sclk * 10;
447 			dev_info.max_memory_clock = adev->pm.default_mclk * 10;
448 		}
449 		dev_info.enabled_rb_pipes_mask = adev->gfx.config.backend_enable_mask;
450 		dev_info.num_rb_pipes = adev->gfx.config.max_backends_per_se *
451 					adev->gfx.config.max_shader_engines;
452 		dev_info.num_hw_gfx_contexts = adev->gfx.config.max_hw_contexts;
453 		dev_info._pad = 0;
454 		dev_info.ids_flags = 0;
455 		if (adev->flags & AMD_IS_APU)
456 			dev_info.ids_flags |= AMDGPU_IDS_FLAGS_FUSION;
457 		dev_info.virtual_address_offset = AMDGPU_VA_RESERVED_SIZE;
458 		dev_info.virtual_address_max = (uint64_t)adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
459 		dev_info.virtual_address_alignment = max((int)PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE);
460 		dev_info.pte_fragment_size = (1 << AMDGPU_LOG2_PAGES_PER_FRAG) *
461 					     AMDGPU_GPU_PAGE_SIZE;
462 		dev_info.gart_page_size = AMDGPU_GPU_PAGE_SIZE;
463 
464 		amdgpu_asic_get_cu_info(adev, &cu_info);
465 		dev_info.cu_active_number = cu_info.number;
466 		dev_info.cu_ao_mask = cu_info.ao_cu_mask;
467 		dev_info.ce_ram_size = adev->gfx.ce_ram_size;
468 		memcpy(&dev_info.cu_bitmap[0], &cu_info.bitmap[0], sizeof(cu_info.bitmap));
469 		dev_info.vram_type = adev->mc.vram_type;
470 		dev_info.vram_bit_width = adev->mc.vram_width;
471 		dev_info.vce_harvest_config = adev->vce.harvest_config;
472 
473 		return copy_to_user(out, &dev_info,
474 				    min((size_t)size, sizeof(dev_info))) ? -EFAULT : 0;
475 	}
476 	default:
477 		DRM_DEBUG_KMS("Invalid request %d\n", info->query);
478 		return -EINVAL;
479 	}
480 	return 0;
481 }
482 
483 
484 /*
485  * Outdated mess for old drm with Xorg being in charge (void function now).
486  */
487 /**
488  * amdgpu_driver_lastclose_kms - drm callback for last close
489  *
490  * @dev: drm dev pointer
491  *
492  * Switch vga_switcheroo state after last close (all asics).
493  */
494 void amdgpu_driver_lastclose_kms(struct drm_device *dev)
495 {
496 	struct amdgpu_device *adev = dev->dev_private;
497 
498 	amdgpu_fbdev_restore_mode(adev);
499 	vga_switcheroo_process_delayed_switch();
500 }
501 
502 /**
503  * amdgpu_driver_open_kms - drm callback for open
504  *
505  * @dev: drm dev pointer
506  * @file_priv: drm file
507  *
508  * On device open, init vm on cayman+ (all asics).
509  * Returns 0 on success, error on failure.
510  */
511 int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
512 {
513 	struct amdgpu_device *adev = dev->dev_private;
514 	struct amdgpu_fpriv *fpriv;
515 	int r;
516 
517 	file_priv->driver_priv = NULL;
518 
519 	r = pm_runtime_get_sync(dev->dev);
520 	if (r < 0)
521 		return r;
522 
523 	fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
524 	if (unlikely(!fpriv))
525 		return -ENOMEM;
526 
527 	r = amdgpu_vm_init(adev, &fpriv->vm);
528 	if (r)
529 		goto error_free;
530 
531 	mutex_init(&fpriv->bo_list_lock);
532 	idr_init(&fpriv->bo_list_handles);
533 
534 	amdgpu_ctx_mgr_init(&fpriv->ctx_mgr);
535 
536 	file_priv->driver_priv = fpriv;
537 
538 	pm_runtime_mark_last_busy(dev->dev);
539 	pm_runtime_put_autosuspend(dev->dev);
540 	return 0;
541 
542 error_free:
543 	kfree(fpriv);
544 
545 	return r;
546 }
547 
548 /**
549  * amdgpu_driver_postclose_kms - drm callback for post close
550  *
551  * @dev: drm dev pointer
552  * @file_priv: drm file
553  *
554  * On device post close, tear down vm on cayman+ (all asics).
555  */
556 void amdgpu_driver_postclose_kms(struct drm_device *dev,
557 				 struct drm_file *file_priv)
558 {
559 	struct amdgpu_device *adev = dev->dev_private;
560 	struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
561 	struct amdgpu_bo_list *list;
562 	int handle;
563 
564 	if (!fpriv)
565 		return;
566 
567 	amdgpu_ctx_mgr_fini(&fpriv->ctx_mgr);
568 
569 	amdgpu_vm_fini(adev, &fpriv->vm);
570 
571 	idr_for_each_entry(&fpriv->bo_list_handles, list, handle)
572 		amdgpu_bo_list_free(list);
573 
574 	idr_destroy(&fpriv->bo_list_handles);
575 	mutex_destroy(&fpriv->bo_list_lock);
576 
577 	kfree(fpriv);
578 	file_priv->driver_priv = NULL;
579 }
580 
581 /**
582  * amdgpu_driver_preclose_kms - drm callback for pre close
583  *
584  * @dev: drm dev pointer
585  * @file_priv: drm file
586  *
587  * On device pre close, tear down hyperz and cmask filps on r1xx-r5xx
588  * (all asics).
589  */
590 void amdgpu_driver_preclose_kms(struct drm_device *dev,
591 				struct drm_file *file_priv)
592 {
593 	struct amdgpu_device *adev = dev->dev_private;
594 
595 	amdgpu_uvd_free_handles(adev, file_priv);
596 	amdgpu_vce_free_handles(adev, file_priv);
597 }
598 
599 /*
600  * VBlank related functions.
601  */
602 /**
603  * amdgpu_get_vblank_counter_kms - get frame count
604  *
605  * @dev: drm dev pointer
606  * @pipe: crtc to get the frame count from
607  *
608  * Gets the frame count on the requested crtc (all asics).
609  * Returns frame count on success, -EINVAL on failure.
610  */
611 u32 amdgpu_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe)
612 {
613 	struct amdgpu_device *adev = dev->dev_private;
614 
615 	if (pipe >= adev->mode_info.num_crtc) {
616 		DRM_ERROR("Invalid crtc %u\n", pipe);
617 		return -EINVAL;
618 	}
619 
620 	return amdgpu_display_vblank_get_counter(adev, pipe);
621 }
622 
623 /**
624  * amdgpu_enable_vblank_kms - enable vblank interrupt
625  *
626  * @dev: drm dev pointer
627  * @pipe: crtc to enable vblank interrupt for
628  *
629  * Enable the interrupt on the requested crtc (all asics).
630  * Returns 0 on success, -EINVAL on failure.
631  */
632 int amdgpu_enable_vblank_kms(struct drm_device *dev, unsigned int pipe)
633 {
634 	struct amdgpu_device *adev = dev->dev_private;
635 	int idx = amdgpu_crtc_idx_to_irq_type(adev, pipe);
636 
637 	return amdgpu_irq_get(adev, &adev->crtc_irq, idx);
638 }
639 
640 /**
641  * amdgpu_disable_vblank_kms - disable vblank interrupt
642  *
643  * @dev: drm dev pointer
644  * @pipe: crtc to disable vblank interrupt for
645  *
646  * Disable the interrupt on the requested crtc (all asics).
647  */
648 void amdgpu_disable_vblank_kms(struct drm_device *dev, unsigned int pipe)
649 {
650 	struct amdgpu_device *adev = dev->dev_private;
651 	int idx = amdgpu_crtc_idx_to_irq_type(adev, pipe);
652 
653 	amdgpu_irq_put(adev, &adev->crtc_irq, idx);
654 }
655 
656 /**
657  * amdgpu_get_vblank_timestamp_kms - get vblank timestamp
658  *
659  * @dev: drm dev pointer
660  * @crtc: crtc to get the timestamp for
661  * @max_error: max error
662  * @vblank_time: time value
663  * @flags: flags passed to the driver
664  *
665  * Gets the timestamp on the requested crtc based on the
666  * scanout position.  (all asics).
667  * Returns postive status flags on success, negative error on failure.
668  */
669 int amdgpu_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int pipe,
670 				    int *max_error,
671 				    struct timeval *vblank_time,
672 				    unsigned flags)
673 {
674 	struct drm_crtc *crtc;
675 	struct amdgpu_device *adev = dev->dev_private;
676 
677 	if (pipe >= dev->num_crtcs) {
678 		DRM_ERROR("Invalid crtc %u\n", pipe);
679 		return -EINVAL;
680 	}
681 
682 	/* Get associated drm_crtc: */
683 	crtc = &adev->mode_info.crtcs[pipe]->base;
684 
685 	/* Helper routine in DRM core does all the work: */
686 	return drm_calc_vbltimestamp_from_scanoutpos(dev, pipe, max_error,
687 						     vblank_time, flags,
688 						     &crtc->hwmode);
689 }
690 
691 const struct drm_ioctl_desc amdgpu_ioctls_kms[] = {
692 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_CREATE, amdgpu_gem_create_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
693 	DRM_IOCTL_DEF_DRV(AMDGPU_CTX, amdgpu_ctx_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
694 	DRM_IOCTL_DEF_DRV(AMDGPU_BO_LIST, amdgpu_bo_list_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
695 	/* KMS */
696 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_MMAP, amdgpu_gem_mmap_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
697 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_WAIT_IDLE, amdgpu_gem_wait_idle_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
698 	DRM_IOCTL_DEF_DRV(AMDGPU_CS, amdgpu_cs_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
699 	DRM_IOCTL_DEF_DRV(AMDGPU_INFO, amdgpu_info_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
700 	DRM_IOCTL_DEF_DRV(AMDGPU_WAIT_CS, amdgpu_cs_wait_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
701 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_METADATA, amdgpu_gem_metadata_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
702 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_VA, amdgpu_gem_va_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
703 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_OP, amdgpu_gem_op_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
704 	DRM_IOCTL_DEF_DRV(AMDGPU_GEM_USERPTR, amdgpu_gem_userptr_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
705 };
706 int amdgpu_max_kms_ioctl = ARRAY_SIZE(amdgpu_ioctls_kms);
707