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 "radeon.h"
30 #include <drm/radeon_drm.h>
31 #include "radeon_asic.h"
32 
33 #include <linux/vga_switcheroo.h>
34 #include <linux/slab.h>
35 #include <linux/pm_runtime.h>
36 
37 #include "radeon_kfd.h"
38 
39 #if defined(CONFIG_VGA_SWITCHEROO)
40 bool radeon_has_atpx(void);
41 #else
42 static inline bool radeon_has_atpx(void) { return false; }
43 #endif
44 
45 /**
46  * radeon_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  * It calls radeon_modeset_fini() to tear down the
52  * displays, and radeon_device_fini() to tear down
53  * the rest of the device (CP, writeback, etc.).
54  * Returns 0 on success.
55  */
56 int radeon_driver_unload_kms(struct drm_device *dev)
57 {
58 	struct radeon_device *rdev = dev->dev_private;
59 
60 	if (rdev == NULL)
61 		return 0;
62 
63 	if (rdev->rmmio == NULL)
64 		goto done_free;
65 
66 	pm_runtime_get_sync(dev->dev);
67 
68 	radeon_kfd_device_fini(rdev);
69 
70 	radeon_acpi_fini(rdev);
71 
72 	radeon_modeset_fini(rdev);
73 	radeon_device_fini(rdev);
74 
75 done_free:
76 	kfree(rdev);
77 	dev->dev_private = NULL;
78 	return 0;
79 }
80 
81 /**
82  * radeon_driver_load_kms - Main load function for KMS.
83  *
84  * @dev: drm dev pointer
85  * @flags: device flags
86  *
87  * This is the main load function for KMS (all asics).
88  * It calls radeon_device_init() to set up the non-display
89  * parts of the chip (asic init, CP, writeback, etc.), and
90  * radeon_modeset_init() to set up the display parts
91  * (crtcs, encoders, hotplug detect, etc.).
92  * Returns 0 on success, error on failure.
93  */
94 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
95 {
96 	struct radeon_device *rdev;
97 	int r, acpi_status;
98 
99 	rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL);
100 	if (rdev == NULL) {
101 		return -ENOMEM;
102 	}
103 	dev->dev_private = (void *)rdev;
104 
105 	/* update BUS flag */
106 	if (drm_pci_device_is_agp(dev)) {
107 		flags |= RADEON_IS_AGP;
108 	} else if (pci_is_pcie(dev->pdev)) {
109 		flags |= RADEON_IS_PCIE;
110 	} else {
111 		flags |= RADEON_IS_PCI;
112 	}
113 
114 	if ((radeon_runtime_pm != 0) &&
115 	    radeon_has_atpx() &&
116 	    ((flags & RADEON_IS_IGP) == 0))
117 		flags |= RADEON_IS_PX;
118 
119 	/* radeon_device_init should report only fatal error
120 	 * like memory allocation failure or iomapping failure,
121 	 * or memory manager initialization failure, it must
122 	 * properly initialize the GPU MC controller and permit
123 	 * VRAM allocation
124 	 */
125 	r = radeon_device_init(rdev, dev, dev->pdev, flags);
126 	if (r) {
127 		dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
128 		goto out;
129 	}
130 
131 	/* Again modeset_init should fail only on fatal error
132 	 * otherwise it should provide enough functionalities
133 	 * for shadowfb to run
134 	 */
135 	r = radeon_modeset_init(rdev);
136 	if (r)
137 		dev_err(&dev->pdev->dev, "Fatal error during modeset init\n");
138 
139 	/* Call ACPI methods: require modeset init
140 	 * but failure is not fatal
141 	 */
142 	if (!r) {
143 		acpi_status = radeon_acpi_init(rdev);
144 		if (acpi_status)
145 		dev_dbg(&dev->pdev->dev,
146 				"Error during ACPI methods call\n");
147 	}
148 
149 	radeon_kfd_device_probe(rdev);
150 	radeon_kfd_device_init(rdev);
151 
152 	if (radeon_is_px(dev)) {
153 		pm_runtime_use_autosuspend(dev->dev);
154 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
155 		pm_runtime_set_active(dev->dev);
156 		pm_runtime_allow(dev->dev);
157 		pm_runtime_mark_last_busy(dev->dev);
158 		pm_runtime_put_autosuspend(dev->dev);
159 	}
160 
161 out:
162 	if (r)
163 		radeon_driver_unload_kms(dev);
164 
165 
166 	return r;
167 }
168 
169 /**
170  * radeon_set_filp_rights - Set filp right.
171  *
172  * @dev: drm dev pointer
173  * @owner: drm file
174  * @applier: drm file
175  * @value: value
176  *
177  * Sets the filp rights for the device (all asics).
178  */
179 static void radeon_set_filp_rights(struct drm_device *dev,
180 				   struct drm_file **owner,
181 				   struct drm_file *applier,
182 				   uint32_t *value)
183 {
184 	mutex_lock(&dev->struct_mutex);
185 	if (*value == 1) {
186 		/* wants rights */
187 		if (!*owner)
188 			*owner = applier;
189 	} else if (*value == 0) {
190 		/* revokes rights */
191 		if (*owner == applier)
192 			*owner = NULL;
193 	}
194 	*value = *owner == applier ? 1 : 0;
195 	mutex_unlock(&dev->struct_mutex);
196 }
197 
198 /*
199  * Userspace get information ioctl
200  */
201 /**
202  * radeon_info_ioctl - answer a device specific request.
203  *
204  * @rdev: radeon device pointer
205  * @data: request object
206  * @filp: drm filp
207  *
208  * This function is used to pass device specific parameters to the userspace
209  * drivers.  Examples include: pci device id, pipeline parms, tiling params,
210  * etc. (all asics).
211  * Returns 0 on success, -EINVAL on failure.
212  */
213 static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
214 {
215 	struct radeon_device *rdev = dev->dev_private;
216 	struct drm_radeon_info *info = data;
217 	struct radeon_mode_info *minfo = &rdev->mode_info;
218 	uint32_t *value, value_tmp, *value_ptr, value_size;
219 	uint64_t value64;
220 	struct drm_crtc *crtc;
221 	int i, found;
222 
223 	value_ptr = (uint32_t *)((unsigned long)info->value);
224 	value = &value_tmp;
225 	value_size = sizeof(uint32_t);
226 
227 	switch (info->request) {
228 	case RADEON_INFO_DEVICE_ID:
229 		*value = dev->pdev->device;
230 		break;
231 	case RADEON_INFO_NUM_GB_PIPES:
232 		*value = rdev->num_gb_pipes;
233 		break;
234 	case RADEON_INFO_NUM_Z_PIPES:
235 		*value = rdev->num_z_pipes;
236 		break;
237 	case RADEON_INFO_ACCEL_WORKING:
238 		/* xf86-video-ati 6.13.0 relies on this being false for evergreen */
239 		if ((rdev->family >= CHIP_CEDAR) && (rdev->family <= CHIP_HEMLOCK))
240 			*value = false;
241 		else
242 			*value = rdev->accel_working;
243 		break;
244 	case RADEON_INFO_CRTC_FROM_ID:
245 		if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
246 			DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
247 			return -EFAULT;
248 		}
249 		for (i = 0, found = 0; i < rdev->num_crtc; i++) {
250 			crtc = (struct drm_crtc *)minfo->crtcs[i];
251 			if (crtc && crtc->base.id == *value) {
252 				struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
253 				*value = radeon_crtc->crtc_id;
254 				found = 1;
255 				break;
256 			}
257 		}
258 		if (!found) {
259 			DRM_DEBUG_KMS("unknown crtc id %d\n", *value);
260 			return -EINVAL;
261 		}
262 		break;
263 	case RADEON_INFO_ACCEL_WORKING2:
264 		if (rdev->family == CHIP_HAWAII) {
265 			if (rdev->accel_working) {
266 				if (rdev->new_fw)
267 					*value = 3;
268 				else
269 					*value = 2;
270 			} else {
271 				*value = 0;
272 			}
273 		} else {
274 			*value = rdev->accel_working;
275 		}
276 		break;
277 	case RADEON_INFO_TILING_CONFIG:
278 		if (rdev->family >= CHIP_BONAIRE)
279 			*value = rdev->config.cik.tile_config;
280 		else if (rdev->family >= CHIP_TAHITI)
281 			*value = rdev->config.si.tile_config;
282 		else if (rdev->family >= CHIP_CAYMAN)
283 			*value = rdev->config.cayman.tile_config;
284 		else if (rdev->family >= CHIP_CEDAR)
285 			*value = rdev->config.evergreen.tile_config;
286 		else if (rdev->family >= CHIP_RV770)
287 			*value = rdev->config.rv770.tile_config;
288 		else if (rdev->family >= CHIP_R600)
289 			*value = rdev->config.r600.tile_config;
290 		else {
291 			DRM_DEBUG_KMS("tiling config is r6xx+ only!\n");
292 			return -EINVAL;
293 		}
294 		break;
295 	case RADEON_INFO_WANT_HYPERZ:
296 		/* The "value" here is both an input and output parameter.
297 		 * If the input value is 1, filp requests hyper-z access.
298 		 * If the input value is 0, filp revokes its hyper-z access.
299 		 *
300 		 * When returning, the value is 1 if filp owns hyper-z access,
301 		 * 0 otherwise. */
302 		if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
303 			DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
304 			return -EFAULT;
305 		}
306 		if (*value >= 2) {
307 			DRM_DEBUG_KMS("WANT_HYPERZ: invalid value %d\n", *value);
308 			return -EINVAL;
309 		}
310 		radeon_set_filp_rights(dev, &rdev->hyperz_filp, filp, value);
311 		break;
312 	case RADEON_INFO_WANT_CMASK:
313 		/* The same logic as Hyper-Z. */
314 		if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
315 			DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
316 			return -EFAULT;
317 		}
318 		if (*value >= 2) {
319 			DRM_DEBUG_KMS("WANT_CMASK: invalid value %d\n", *value);
320 			return -EINVAL;
321 		}
322 		radeon_set_filp_rights(dev, &rdev->cmask_filp, filp, value);
323 		break;
324 	case RADEON_INFO_CLOCK_CRYSTAL_FREQ:
325 		/* return clock value in KHz */
326 		if (rdev->asic->get_xclk)
327 			*value = radeon_get_xclk(rdev) * 10;
328 		else
329 			*value = rdev->clock.spll.reference_freq * 10;
330 		break;
331 	case RADEON_INFO_NUM_BACKENDS:
332 		if (rdev->family >= CHIP_BONAIRE)
333 			*value = rdev->config.cik.max_backends_per_se *
334 				rdev->config.cik.max_shader_engines;
335 		else if (rdev->family >= CHIP_TAHITI)
336 			*value = rdev->config.si.max_backends_per_se *
337 				rdev->config.si.max_shader_engines;
338 		else if (rdev->family >= CHIP_CAYMAN)
339 			*value = rdev->config.cayman.max_backends_per_se *
340 				rdev->config.cayman.max_shader_engines;
341 		else if (rdev->family >= CHIP_CEDAR)
342 			*value = rdev->config.evergreen.max_backends;
343 		else if (rdev->family >= CHIP_RV770)
344 			*value = rdev->config.rv770.max_backends;
345 		else if (rdev->family >= CHIP_R600)
346 			*value = rdev->config.r600.max_backends;
347 		else {
348 			return -EINVAL;
349 		}
350 		break;
351 	case RADEON_INFO_NUM_TILE_PIPES:
352 		if (rdev->family >= CHIP_BONAIRE)
353 			*value = rdev->config.cik.max_tile_pipes;
354 		else if (rdev->family >= CHIP_TAHITI)
355 			*value = rdev->config.si.max_tile_pipes;
356 		else if (rdev->family >= CHIP_CAYMAN)
357 			*value = rdev->config.cayman.max_tile_pipes;
358 		else if (rdev->family >= CHIP_CEDAR)
359 			*value = rdev->config.evergreen.max_tile_pipes;
360 		else if (rdev->family >= CHIP_RV770)
361 			*value = rdev->config.rv770.max_tile_pipes;
362 		else if (rdev->family >= CHIP_R600)
363 			*value = rdev->config.r600.max_tile_pipes;
364 		else {
365 			return -EINVAL;
366 		}
367 		break;
368 	case RADEON_INFO_FUSION_GART_WORKING:
369 		*value = 1;
370 		break;
371 	case RADEON_INFO_BACKEND_MAP:
372 		if (rdev->family >= CHIP_BONAIRE)
373 			*value = rdev->config.cik.backend_map;
374 		else if (rdev->family >= CHIP_TAHITI)
375 			*value = rdev->config.si.backend_map;
376 		else if (rdev->family >= CHIP_CAYMAN)
377 			*value = rdev->config.cayman.backend_map;
378 		else if (rdev->family >= CHIP_CEDAR)
379 			*value = rdev->config.evergreen.backend_map;
380 		else if (rdev->family >= CHIP_RV770)
381 			*value = rdev->config.rv770.backend_map;
382 		else if (rdev->family >= CHIP_R600)
383 			*value = rdev->config.r600.backend_map;
384 		else {
385 			return -EINVAL;
386 		}
387 		break;
388 	case RADEON_INFO_VA_START:
389 		/* this is where we report if vm is supported or not */
390 		if (rdev->family < CHIP_CAYMAN)
391 			return -EINVAL;
392 		*value = RADEON_VA_RESERVED_SIZE;
393 		break;
394 	case RADEON_INFO_IB_VM_MAX_SIZE:
395 		/* this is where we report if vm is supported or not */
396 		if (rdev->family < CHIP_CAYMAN)
397 			return -EINVAL;
398 		*value = RADEON_IB_VM_MAX_SIZE;
399 		break;
400 	case RADEON_INFO_MAX_PIPES:
401 		if (rdev->family >= CHIP_BONAIRE)
402 			*value = rdev->config.cik.max_cu_per_sh;
403 		else if (rdev->family >= CHIP_TAHITI)
404 			*value = rdev->config.si.max_cu_per_sh;
405 		else if (rdev->family >= CHIP_CAYMAN)
406 			*value = rdev->config.cayman.max_pipes_per_simd;
407 		else if (rdev->family >= CHIP_CEDAR)
408 			*value = rdev->config.evergreen.max_pipes;
409 		else if (rdev->family >= CHIP_RV770)
410 			*value = rdev->config.rv770.max_pipes;
411 		else if (rdev->family >= CHIP_R600)
412 			*value = rdev->config.r600.max_pipes;
413 		else {
414 			return -EINVAL;
415 		}
416 		break;
417 	case RADEON_INFO_TIMESTAMP:
418 		if (rdev->family < CHIP_R600) {
419 			DRM_DEBUG_KMS("timestamp is r6xx+ only!\n");
420 			return -EINVAL;
421 		}
422 		value = (uint32_t*)&value64;
423 		value_size = sizeof(uint64_t);
424 		value64 = radeon_get_gpu_clock_counter(rdev);
425 		break;
426 	case RADEON_INFO_MAX_SE:
427 		if (rdev->family >= CHIP_BONAIRE)
428 			*value = rdev->config.cik.max_shader_engines;
429 		else if (rdev->family >= CHIP_TAHITI)
430 			*value = rdev->config.si.max_shader_engines;
431 		else if (rdev->family >= CHIP_CAYMAN)
432 			*value = rdev->config.cayman.max_shader_engines;
433 		else if (rdev->family >= CHIP_CEDAR)
434 			*value = rdev->config.evergreen.num_ses;
435 		else
436 			*value = 1;
437 		break;
438 	case RADEON_INFO_MAX_SH_PER_SE:
439 		if (rdev->family >= CHIP_BONAIRE)
440 			*value = rdev->config.cik.max_sh_per_se;
441 		else if (rdev->family >= CHIP_TAHITI)
442 			*value = rdev->config.si.max_sh_per_se;
443 		else
444 			return -EINVAL;
445 		break;
446 	case RADEON_INFO_FASTFB_WORKING:
447 		*value = rdev->fastfb_working;
448 		break;
449 	case RADEON_INFO_RING_WORKING:
450 		if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
451 			DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
452 			return -EFAULT;
453 		}
454 		switch (*value) {
455 		case RADEON_CS_RING_GFX:
456 		case RADEON_CS_RING_COMPUTE:
457 			*value = rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready;
458 			break;
459 		case RADEON_CS_RING_DMA:
460 			*value = rdev->ring[R600_RING_TYPE_DMA_INDEX].ready;
461 			*value |= rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready;
462 			break;
463 		case RADEON_CS_RING_UVD:
464 			*value = rdev->ring[R600_RING_TYPE_UVD_INDEX].ready;
465 			break;
466 		case RADEON_CS_RING_VCE:
467 			*value = rdev->ring[TN_RING_TYPE_VCE1_INDEX].ready;
468 			break;
469 		default:
470 			return -EINVAL;
471 		}
472 		break;
473 	case RADEON_INFO_SI_TILE_MODE_ARRAY:
474 		if (rdev->family >= CHIP_BONAIRE) {
475 			value = rdev->config.cik.tile_mode_array;
476 			value_size = sizeof(uint32_t)*32;
477 		} else if (rdev->family >= CHIP_TAHITI) {
478 			value = rdev->config.si.tile_mode_array;
479 			value_size = sizeof(uint32_t)*32;
480 		} else {
481 			DRM_DEBUG_KMS("tile mode array is si+ only!\n");
482 			return -EINVAL;
483 		}
484 		break;
485 	case RADEON_INFO_CIK_MACROTILE_MODE_ARRAY:
486 		if (rdev->family >= CHIP_BONAIRE) {
487 			value = rdev->config.cik.macrotile_mode_array;
488 			value_size = sizeof(uint32_t)*16;
489 		} else {
490 			DRM_DEBUG_KMS("macrotile mode array is cik+ only!\n");
491 			return -EINVAL;
492 		}
493 		break;
494 	case RADEON_INFO_SI_CP_DMA_COMPUTE:
495 		*value = 1;
496 		break;
497 	case RADEON_INFO_SI_BACKEND_ENABLED_MASK:
498 		if (rdev->family >= CHIP_BONAIRE) {
499 			*value = rdev->config.cik.backend_enable_mask;
500 		} else if (rdev->family >= CHIP_TAHITI) {
501 			*value = rdev->config.si.backend_enable_mask;
502 		} else {
503 			DRM_DEBUG_KMS("BACKEND_ENABLED_MASK is si+ only!\n");
504 		}
505 		break;
506 	case RADEON_INFO_MAX_SCLK:
507 		if ((rdev->pm.pm_method == PM_METHOD_DPM) &&
508 		    rdev->pm.dpm_enabled)
509 			*value = rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk * 10;
510 		else
511 			*value = rdev->pm.default_sclk * 10;
512 		break;
513 	case RADEON_INFO_VCE_FW_VERSION:
514 		*value = rdev->vce.fw_version;
515 		break;
516 	case RADEON_INFO_VCE_FB_VERSION:
517 		*value = rdev->vce.fb_version;
518 		break;
519 	case RADEON_INFO_NUM_BYTES_MOVED:
520 		value = (uint32_t*)&value64;
521 		value_size = sizeof(uint64_t);
522 		value64 = atomic64_read(&rdev->num_bytes_moved);
523 		break;
524 	case RADEON_INFO_VRAM_USAGE:
525 		value = (uint32_t*)&value64;
526 		value_size = sizeof(uint64_t);
527 		value64 = atomic64_read(&rdev->vram_usage);
528 		break;
529 	case RADEON_INFO_GTT_USAGE:
530 		value = (uint32_t*)&value64;
531 		value_size = sizeof(uint64_t);
532 		value64 = atomic64_read(&rdev->gtt_usage);
533 		break;
534 	case RADEON_INFO_ACTIVE_CU_COUNT:
535 		if (rdev->family >= CHIP_BONAIRE)
536 			*value = rdev->config.cik.active_cus;
537 		else if (rdev->family >= CHIP_TAHITI)
538 			*value = rdev->config.si.active_cus;
539 		else if (rdev->family >= CHIP_CAYMAN)
540 			*value = rdev->config.cayman.active_simds;
541 		else if (rdev->family >= CHIP_CEDAR)
542 			*value = rdev->config.evergreen.active_simds;
543 		else if (rdev->family >= CHIP_RV770)
544 			*value = rdev->config.rv770.active_simds;
545 		else if (rdev->family >= CHIP_R600)
546 			*value = rdev->config.r600.active_simds;
547 		else
548 			*value = 1;
549 		break;
550 	default:
551 		DRM_DEBUG_KMS("Invalid request %d\n", info->request);
552 		return -EINVAL;
553 	}
554 	if (copy_to_user(value_ptr, (char*)value, value_size)) {
555 		DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__);
556 		return -EFAULT;
557 	}
558 	return 0;
559 }
560 
561 
562 /*
563  * Outdated mess for old drm with Xorg being in charge (void function now).
564  */
565 /**
566  * radeon_driver_firstopen_kms - drm callback for last close
567  *
568  * @dev: drm dev pointer
569  *
570  * Switch vga switcheroo state after last close (all asics).
571  */
572 void radeon_driver_lastclose_kms(struct drm_device *dev)
573 {
574 	vga_switcheroo_process_delayed_switch();
575 }
576 
577 /**
578  * radeon_driver_open_kms - drm callback for open
579  *
580  * @dev: drm dev pointer
581  * @file_priv: drm file
582  *
583  * On device open, init vm on cayman+ (all asics).
584  * Returns 0 on success, error on failure.
585  */
586 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
587 {
588 	struct radeon_device *rdev = dev->dev_private;
589 	int r;
590 
591 	file_priv->driver_priv = NULL;
592 
593 	r = pm_runtime_get_sync(dev->dev);
594 	if (r < 0)
595 		return r;
596 
597 	/* new gpu have virtual address space support */
598 	if (rdev->family >= CHIP_CAYMAN) {
599 		struct radeon_fpriv *fpriv;
600 		struct radeon_vm *vm;
601 		int r;
602 
603 		fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
604 		if (unlikely(!fpriv)) {
605 			return -ENOMEM;
606 		}
607 
608 		vm = &fpriv->vm;
609 		r = radeon_vm_init(rdev, vm);
610 		if (r) {
611 			kfree(fpriv);
612 			return r;
613 		}
614 
615 		if (rdev->accel_working) {
616 			r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
617 			if (r) {
618 				radeon_vm_fini(rdev, vm);
619 				kfree(fpriv);
620 				return r;
621 			}
622 
623 			/* map the ib pool buffer read only into
624 			 * virtual address space */
625 			vm->ib_bo_va = radeon_vm_bo_add(rdev, vm,
626 							rdev->ring_tmp_bo.bo);
627 			r = radeon_vm_bo_set_addr(rdev, vm->ib_bo_va,
628 						  RADEON_VA_IB_OFFSET,
629 						  RADEON_VM_PAGE_READABLE |
630 						  RADEON_VM_PAGE_SNOOPED);
631 			if (r) {
632 				radeon_vm_fini(rdev, vm);
633 				kfree(fpriv);
634 				return r;
635 			}
636 		}
637 		file_priv->driver_priv = fpriv;
638 	}
639 
640 	pm_runtime_mark_last_busy(dev->dev);
641 	pm_runtime_put_autosuspend(dev->dev);
642 	return 0;
643 }
644 
645 /**
646  * radeon_driver_postclose_kms - drm callback for post close
647  *
648  * @dev: drm dev pointer
649  * @file_priv: drm file
650  *
651  * On device post close, tear down vm on cayman+ (all asics).
652  */
653 void radeon_driver_postclose_kms(struct drm_device *dev,
654 				 struct drm_file *file_priv)
655 {
656 	struct radeon_device *rdev = dev->dev_private;
657 
658 	/* new gpu have virtual address space support */
659 	if (rdev->family >= CHIP_CAYMAN && file_priv->driver_priv) {
660 		struct radeon_fpriv *fpriv = file_priv->driver_priv;
661 		struct radeon_vm *vm = &fpriv->vm;
662 		int r;
663 
664 		if (rdev->accel_working) {
665 			r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
666 			if (!r) {
667 				if (vm->ib_bo_va)
668 					radeon_vm_bo_rmv(rdev, vm->ib_bo_va);
669 				radeon_bo_unreserve(rdev->ring_tmp_bo.bo);
670 			}
671 		}
672 
673 		radeon_vm_fini(rdev, vm);
674 		kfree(fpriv);
675 		file_priv->driver_priv = NULL;
676 	}
677 }
678 
679 /**
680  * radeon_driver_preclose_kms - drm callback for pre close
681  *
682  * @dev: drm dev pointer
683  * @file_priv: drm file
684  *
685  * On device pre close, tear down hyperz and cmask filps on r1xx-r5xx
686  * (all asics).
687  */
688 void radeon_driver_preclose_kms(struct drm_device *dev,
689 				struct drm_file *file_priv)
690 {
691 	struct radeon_device *rdev = dev->dev_private;
692 	if (rdev->hyperz_filp == file_priv)
693 		rdev->hyperz_filp = NULL;
694 	if (rdev->cmask_filp == file_priv)
695 		rdev->cmask_filp = NULL;
696 	radeon_uvd_free_handles(rdev, file_priv);
697 	radeon_vce_free_handles(rdev, file_priv);
698 }
699 
700 /*
701  * VBlank related functions.
702  */
703 /**
704  * radeon_get_vblank_counter_kms - get frame count
705  *
706  * @dev: drm dev pointer
707  * @crtc: crtc to get the frame count from
708  *
709  * Gets the frame count on the requested crtc (all asics).
710  * Returns frame count on success, -EINVAL on failure.
711  */
712 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc)
713 {
714 	struct radeon_device *rdev = dev->dev_private;
715 
716 	if (crtc < 0 || crtc >= rdev->num_crtc) {
717 		DRM_ERROR("Invalid crtc %d\n", crtc);
718 		return -EINVAL;
719 	}
720 
721 	return radeon_get_vblank_counter(rdev, crtc);
722 }
723 
724 /**
725  * radeon_enable_vblank_kms - enable vblank interrupt
726  *
727  * @dev: drm dev pointer
728  * @crtc: crtc to enable vblank interrupt for
729  *
730  * Enable the interrupt on the requested crtc (all asics).
731  * Returns 0 on success, -EINVAL on failure.
732  */
733 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
734 {
735 	struct radeon_device *rdev = dev->dev_private;
736 	unsigned long irqflags;
737 	int r;
738 
739 	if (crtc < 0 || crtc >= rdev->num_crtc) {
740 		DRM_ERROR("Invalid crtc %d\n", crtc);
741 		return -EINVAL;
742 	}
743 
744 	spin_lock_irqsave(&rdev->irq.lock, irqflags);
745 	rdev->irq.crtc_vblank_int[crtc] = true;
746 	r = radeon_irq_set(rdev);
747 	spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
748 	return r;
749 }
750 
751 /**
752  * radeon_disable_vblank_kms - disable vblank interrupt
753  *
754  * @dev: drm dev pointer
755  * @crtc: crtc to disable vblank interrupt for
756  *
757  * Disable the interrupt on the requested crtc (all asics).
758  */
759 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
760 {
761 	struct radeon_device *rdev = dev->dev_private;
762 	unsigned long irqflags;
763 
764 	if (crtc < 0 || crtc >= rdev->num_crtc) {
765 		DRM_ERROR("Invalid crtc %d\n", crtc);
766 		return;
767 	}
768 
769 	spin_lock_irqsave(&rdev->irq.lock, irqflags);
770 	rdev->irq.crtc_vblank_int[crtc] = false;
771 	radeon_irq_set(rdev);
772 	spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
773 }
774 
775 /**
776  * radeon_get_vblank_timestamp_kms - get vblank timestamp
777  *
778  * @dev: drm dev pointer
779  * @crtc: crtc to get the timestamp for
780  * @max_error: max error
781  * @vblank_time: time value
782  * @flags: flags passed to the driver
783  *
784  * Gets the timestamp on the requested crtc based on the
785  * scanout position.  (all asics).
786  * Returns postive status flags on success, negative error on failure.
787  */
788 int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
789 				    int *max_error,
790 				    struct timeval *vblank_time,
791 				    unsigned flags)
792 {
793 	struct drm_crtc *drmcrtc;
794 	struct radeon_device *rdev = dev->dev_private;
795 
796 	if (crtc < 0 || crtc >= dev->num_crtcs) {
797 		DRM_ERROR("Invalid crtc %d\n", crtc);
798 		return -EINVAL;
799 	}
800 
801 	/* Get associated drm_crtc: */
802 	drmcrtc = &rdev->mode_info.crtcs[crtc]->base;
803 	if (!drmcrtc)
804 		return -EINVAL;
805 
806 	/* Helper routine in DRM core does all the work: */
807 	return drm_calc_vbltimestamp_from_scanoutpos(dev, crtc, max_error,
808 						     vblank_time, flags,
809 						     drmcrtc, &drmcrtc->hwmode);
810 }
811 
812 #define KMS_INVALID_IOCTL(name)						\
813 static int name(struct drm_device *dev, void *data, struct drm_file	\
814 		*file_priv)						\
815 {									\
816 	DRM_ERROR("invalid ioctl with kms %s\n", __func__);		\
817 	return -EINVAL;							\
818 }
819 
820 /*
821  * All these ioctls are invalid in kms world.
822  */
823 KMS_INVALID_IOCTL(radeon_cp_init_kms)
824 KMS_INVALID_IOCTL(radeon_cp_start_kms)
825 KMS_INVALID_IOCTL(radeon_cp_stop_kms)
826 KMS_INVALID_IOCTL(radeon_cp_reset_kms)
827 KMS_INVALID_IOCTL(radeon_cp_idle_kms)
828 KMS_INVALID_IOCTL(radeon_cp_resume_kms)
829 KMS_INVALID_IOCTL(radeon_engine_reset_kms)
830 KMS_INVALID_IOCTL(radeon_fullscreen_kms)
831 KMS_INVALID_IOCTL(radeon_cp_swap_kms)
832 KMS_INVALID_IOCTL(radeon_cp_clear_kms)
833 KMS_INVALID_IOCTL(radeon_cp_vertex_kms)
834 KMS_INVALID_IOCTL(radeon_cp_indices_kms)
835 KMS_INVALID_IOCTL(radeon_cp_texture_kms)
836 KMS_INVALID_IOCTL(radeon_cp_stipple_kms)
837 KMS_INVALID_IOCTL(radeon_cp_indirect_kms)
838 KMS_INVALID_IOCTL(radeon_cp_vertex2_kms)
839 KMS_INVALID_IOCTL(radeon_cp_cmdbuf_kms)
840 KMS_INVALID_IOCTL(radeon_cp_getparam_kms)
841 KMS_INVALID_IOCTL(radeon_cp_flip_kms)
842 KMS_INVALID_IOCTL(radeon_mem_alloc_kms)
843 KMS_INVALID_IOCTL(radeon_mem_free_kms)
844 KMS_INVALID_IOCTL(radeon_mem_init_heap_kms)
845 KMS_INVALID_IOCTL(radeon_irq_emit_kms)
846 KMS_INVALID_IOCTL(radeon_irq_wait_kms)
847 KMS_INVALID_IOCTL(radeon_cp_setparam_kms)
848 KMS_INVALID_IOCTL(radeon_surface_alloc_kms)
849 KMS_INVALID_IOCTL(radeon_surface_free_kms)
850 
851 
852 const struct drm_ioctl_desc radeon_ioctls_kms[] = {
853 	DRM_IOCTL_DEF_DRV(RADEON_CP_INIT, radeon_cp_init_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
854 	DRM_IOCTL_DEF_DRV(RADEON_CP_START, radeon_cp_start_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
855 	DRM_IOCTL_DEF_DRV(RADEON_CP_STOP, radeon_cp_stop_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
856 	DRM_IOCTL_DEF_DRV(RADEON_CP_RESET, radeon_cp_reset_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
857 	DRM_IOCTL_DEF_DRV(RADEON_CP_IDLE, radeon_cp_idle_kms, DRM_AUTH),
858 	DRM_IOCTL_DEF_DRV(RADEON_CP_RESUME, radeon_cp_resume_kms, DRM_AUTH),
859 	DRM_IOCTL_DEF_DRV(RADEON_RESET, radeon_engine_reset_kms, DRM_AUTH),
860 	DRM_IOCTL_DEF_DRV(RADEON_FULLSCREEN, radeon_fullscreen_kms, DRM_AUTH),
861 	DRM_IOCTL_DEF_DRV(RADEON_SWAP, radeon_cp_swap_kms, DRM_AUTH),
862 	DRM_IOCTL_DEF_DRV(RADEON_CLEAR, radeon_cp_clear_kms, DRM_AUTH),
863 	DRM_IOCTL_DEF_DRV(RADEON_VERTEX, radeon_cp_vertex_kms, DRM_AUTH),
864 	DRM_IOCTL_DEF_DRV(RADEON_INDICES, radeon_cp_indices_kms, DRM_AUTH),
865 	DRM_IOCTL_DEF_DRV(RADEON_TEXTURE, radeon_cp_texture_kms, DRM_AUTH),
866 	DRM_IOCTL_DEF_DRV(RADEON_STIPPLE, radeon_cp_stipple_kms, DRM_AUTH),
867 	DRM_IOCTL_DEF_DRV(RADEON_INDIRECT, radeon_cp_indirect_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
868 	DRM_IOCTL_DEF_DRV(RADEON_VERTEX2, radeon_cp_vertex2_kms, DRM_AUTH),
869 	DRM_IOCTL_DEF_DRV(RADEON_CMDBUF, radeon_cp_cmdbuf_kms, DRM_AUTH),
870 	DRM_IOCTL_DEF_DRV(RADEON_GETPARAM, radeon_cp_getparam_kms, DRM_AUTH),
871 	DRM_IOCTL_DEF_DRV(RADEON_FLIP, radeon_cp_flip_kms, DRM_AUTH),
872 	DRM_IOCTL_DEF_DRV(RADEON_ALLOC, radeon_mem_alloc_kms, DRM_AUTH),
873 	DRM_IOCTL_DEF_DRV(RADEON_FREE, radeon_mem_free_kms, DRM_AUTH),
874 	DRM_IOCTL_DEF_DRV(RADEON_INIT_HEAP, radeon_mem_init_heap_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
875 	DRM_IOCTL_DEF_DRV(RADEON_IRQ_EMIT, radeon_irq_emit_kms, DRM_AUTH),
876 	DRM_IOCTL_DEF_DRV(RADEON_IRQ_WAIT, radeon_irq_wait_kms, DRM_AUTH),
877 	DRM_IOCTL_DEF_DRV(RADEON_SETPARAM, radeon_cp_setparam_kms, DRM_AUTH),
878 	DRM_IOCTL_DEF_DRV(RADEON_SURF_ALLOC, radeon_surface_alloc_kms, DRM_AUTH),
879 	DRM_IOCTL_DEF_DRV(RADEON_SURF_FREE, radeon_surface_free_kms, DRM_AUTH),
880 	/* KMS */
881 	DRM_IOCTL_DEF_DRV(RADEON_GEM_INFO, radeon_gem_info_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
882 	DRM_IOCTL_DEF_DRV(RADEON_GEM_CREATE, radeon_gem_create_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
883 	DRM_IOCTL_DEF_DRV(RADEON_GEM_MMAP, radeon_gem_mmap_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
884 	DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_DOMAIN, radeon_gem_set_domain_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
885 	DRM_IOCTL_DEF_DRV(RADEON_GEM_PREAD, radeon_gem_pread_ioctl, DRM_AUTH|DRM_UNLOCKED),
886 	DRM_IOCTL_DEF_DRV(RADEON_GEM_PWRITE, radeon_gem_pwrite_ioctl, DRM_AUTH|DRM_UNLOCKED),
887 	DRM_IOCTL_DEF_DRV(RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
888 	DRM_IOCTL_DEF_DRV(RADEON_CS, radeon_cs_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
889 	DRM_IOCTL_DEF_DRV(RADEON_INFO, radeon_info_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
890 	DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
891 	DRM_IOCTL_DEF_DRV(RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
892 	DRM_IOCTL_DEF_DRV(RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
893 	DRM_IOCTL_DEF_DRV(RADEON_GEM_VA, radeon_gem_va_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
894 	DRM_IOCTL_DEF_DRV(RADEON_GEM_OP, radeon_gem_op_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
895 	DRM_IOCTL_DEF_DRV(RADEON_GEM_USERPTR, radeon_gem_userptr_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
896 };
897 int radeon_max_kms_ioctl = ARRAY_SIZE(radeon_ioctls_kms);
898