1 /*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alex Deucher
26 * Jerome Glisse
27 */
28
29 #include <linux/pci.h>
30 #include <linux/pm_runtime.h>
31 #include <linux/slab.h>
32 #include <linux/uaccess.h>
33 #include <linux/vga_switcheroo.h>
34
35 #include <drm/drm_fb_helper.h>
36 #include <drm/drm_file.h>
37 #include <drm/drm_ioctl.h>
38 #include <drm/radeon_drm.h>
39
40 #include "radeon.h"
41 #include "radeon_asic.h"
42 #include "radeon_drv.h"
43 #include "radeon_kms.h"
44
45 #if defined(CONFIG_VGA_SWITCHEROO)
46 bool radeon_has_atpx(void);
47 #else
radeon_has_atpx(void)48 static inline bool radeon_has_atpx(void) { return false; }
49 #endif
50
51 /**
52 * radeon_driver_unload_kms - Main unload function for KMS.
53 *
54 * @dev: drm dev pointer
55 *
56 * This is the main unload function for KMS (all asics).
57 * It calls radeon_modeset_fini() to tear down the
58 * displays, and radeon_device_fini() to tear down
59 * the rest of the device (CP, writeback, etc.).
60 * Returns 0 on success.
61 */
radeon_driver_unload_kms(struct drm_device * dev)62 void radeon_driver_unload_kms(struct drm_device *dev)
63 {
64 struct radeon_device *rdev = dev->dev_private;
65
66 if (rdev == NULL)
67 return;
68
69 if (rdev->rmmio == NULL)
70 goto done_free;
71
72 if (radeon_is_px(dev)) {
73 pm_runtime_get_sync(dev->dev);
74 pm_runtime_forbid(dev->dev);
75 }
76
77 radeon_acpi_fini(rdev);
78
79 radeon_modeset_fini(rdev);
80 radeon_device_fini(rdev);
81
82 if (rdev->agp)
83 arch_phys_wc_del(rdev->agp->agp_mtrr);
84 kfree(rdev->agp);
85 rdev->agp = NULL;
86
87 done_free:
88 kfree(rdev);
89 dev->dev_private = NULL;
90 }
91
92 /**
93 * radeon_driver_load_kms - Main load function for KMS.
94 *
95 * @dev: drm dev pointer
96 * @flags: device flags
97 *
98 * This is the main load function for KMS (all asics).
99 * It calls radeon_device_init() to set up the non-display
100 * parts of the chip (asic init, CP, writeback, etc.), and
101 * radeon_modeset_init() to set up the display parts
102 * (crtcs, encoders, hotplug detect, etc.).
103 * Returns 0 on success, error on failure.
104 */
radeon_driver_load_kms(struct drm_device * dev,unsigned long flags)105 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
106 {
107 struct pci_dev *pdev = to_pci_dev(dev->dev);
108 struct radeon_device *rdev;
109 int r, acpi_status;
110
111 rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL);
112 if (rdev == NULL) {
113 return -ENOMEM;
114 }
115 dev->dev_private = (void *)rdev;
116
117 #ifdef __alpha__
118 rdev->hose = pdev->sysdata;
119 #endif
120
121 if (pci_find_capability(pdev, PCI_CAP_ID_AGP))
122 rdev->agp = radeon_agp_head_init(dev);
123 if (rdev->agp) {
124 rdev->agp->agp_mtrr = arch_phys_wc_add(
125 rdev->agp->agp_info.aper_base,
126 rdev->agp->agp_info.aper_size *
127 1024 * 1024);
128 }
129
130 /* update BUS flag */
131 if (pci_find_capability(pdev, PCI_CAP_ID_AGP)) {
132 flags |= RADEON_IS_AGP;
133 } else if (pci_is_pcie(pdev)) {
134 flags |= RADEON_IS_PCIE;
135 } else {
136 flags |= RADEON_IS_PCI;
137 }
138
139 if ((radeon_runtime_pm != 0) &&
140 radeon_has_atpx() &&
141 ((flags & RADEON_IS_IGP) == 0) &&
142 !pci_is_thunderbolt_attached(pdev))
143 flags |= RADEON_IS_PX;
144
145 /* radeon_device_init should report only fatal error
146 * like memory allocation failure or iomapping failure,
147 * or memory manager initialization failure, it must
148 * properly initialize the GPU MC controller and permit
149 * VRAM allocation
150 */
151 r = radeon_device_init(rdev, dev, pdev, flags);
152 if (r) {
153 dev_err(dev->dev, "Fatal error during GPU init\n");
154 goto out;
155 }
156
157 /* Again modeset_init should fail only on fatal error
158 * otherwise it should provide enough functionalities
159 * for shadowfb to run
160 */
161 r = radeon_modeset_init(rdev);
162 if (r)
163 dev_err(dev->dev, "Fatal error during modeset init\n");
164
165 /* Call ACPI methods: require modeset init
166 * but failure is not fatal
167 */
168 if (!r) {
169 acpi_status = radeon_acpi_init(rdev);
170 if (acpi_status)
171 dev_dbg(dev->dev, "Error during ACPI methods call\n");
172 }
173
174 if (radeon_is_px(dev)) {
175 dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
176 pm_runtime_use_autosuspend(dev->dev);
177 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
178 pm_runtime_set_active(dev->dev);
179 pm_runtime_allow(dev->dev);
180 pm_runtime_mark_last_busy(dev->dev);
181 pm_runtime_put_autosuspend(dev->dev);
182 }
183
184 out:
185 if (r)
186 radeon_driver_unload_kms(dev);
187
188
189 return r;
190 }
191
192 /**
193 * radeon_set_filp_rights - Set filp right.
194 *
195 * @dev: drm dev pointer
196 * @owner: drm file
197 * @applier: drm file
198 * @value: value
199 *
200 * Sets the filp rights for the device (all asics).
201 */
radeon_set_filp_rights(struct drm_device * dev,struct drm_file ** owner,struct drm_file * applier,uint32_t * value)202 static void radeon_set_filp_rights(struct drm_device *dev,
203 struct drm_file **owner,
204 struct drm_file *applier,
205 uint32_t *value)
206 {
207 struct radeon_device *rdev = dev->dev_private;
208
209 mutex_lock(&rdev->gem.mutex);
210 if (*value == 1) {
211 /* wants rights */
212 if (!*owner)
213 *owner = applier;
214 } else if (*value == 0) {
215 /* revokes rights */
216 if (*owner == applier)
217 *owner = NULL;
218 }
219 *value = *owner == applier ? 1 : 0;
220 mutex_unlock(&rdev->gem.mutex);
221 }
222
223 /*
224 * Userspace get information ioctl
225 */
226 /**
227 * radeon_info_ioctl - answer a device specific request.
228 *
229 * @dev: drm device pointer
230 * @data: request object
231 * @filp: drm filp
232 *
233 * This function is used to pass device specific parameters to the userspace
234 * drivers. Examples include: pci device id, pipeline parms, tiling params,
235 * etc. (all asics).
236 * Returns 0 on success, -EINVAL on failure.
237 */
radeon_info_ioctl(struct drm_device * dev,void * data,struct drm_file * filp)238 int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
239 {
240 struct radeon_device *rdev = dev->dev_private;
241 struct drm_radeon_info *info = data;
242 struct radeon_mode_info *minfo = &rdev->mode_info;
243 uint32_t *value, value_tmp, *value_ptr, value_size;
244 uint64_t value64;
245 struct drm_crtc *crtc;
246 int i, found;
247
248 value_ptr = (uint32_t *)((unsigned long)info->value);
249 value = &value_tmp;
250 value_size = sizeof(uint32_t);
251
252 switch (info->request) {
253 case RADEON_INFO_DEVICE_ID:
254 *value = to_pci_dev(dev->dev)->device;
255 break;
256 case RADEON_INFO_NUM_GB_PIPES:
257 *value = rdev->num_gb_pipes;
258 break;
259 case RADEON_INFO_NUM_Z_PIPES:
260 *value = rdev->num_z_pipes;
261 break;
262 case RADEON_INFO_ACCEL_WORKING:
263 /* xf86-video-ati 6.13.0 relies on this being false for evergreen */
264 if ((rdev->family >= CHIP_CEDAR) && (rdev->family <= CHIP_HEMLOCK))
265 *value = false;
266 else
267 *value = rdev->accel_working;
268 break;
269 case RADEON_INFO_CRTC_FROM_ID:
270 if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
271 DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
272 return -EFAULT;
273 }
274 for (i = 0, found = 0; i < rdev->num_crtc; i++) {
275 crtc = (struct drm_crtc *)minfo->crtcs[i];
276 if (crtc && crtc->base.id == *value) {
277 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
278 *value = radeon_crtc->crtc_id;
279 found = 1;
280 break;
281 }
282 }
283 if (!found) {
284 DRM_DEBUG_KMS("unknown crtc id %d\n", *value);
285 return -EINVAL;
286 }
287 break;
288 case RADEON_INFO_ACCEL_WORKING2:
289 if (rdev->family == CHIP_HAWAII) {
290 if (rdev->accel_working) {
291 if (rdev->new_fw)
292 *value = 3;
293 else
294 *value = 2;
295 } else {
296 *value = 0;
297 }
298 } else {
299 *value = rdev->accel_working;
300 }
301 break;
302 case RADEON_INFO_TILING_CONFIG:
303 if (rdev->family >= CHIP_BONAIRE)
304 *value = rdev->config.cik.tile_config;
305 else if (rdev->family >= CHIP_TAHITI)
306 *value = rdev->config.si.tile_config;
307 else if (rdev->family >= CHIP_CAYMAN)
308 *value = rdev->config.cayman.tile_config;
309 else if (rdev->family >= CHIP_CEDAR)
310 *value = rdev->config.evergreen.tile_config;
311 else if (rdev->family >= CHIP_RV770)
312 *value = rdev->config.rv770.tile_config;
313 else if (rdev->family >= CHIP_R600)
314 *value = rdev->config.r600.tile_config;
315 else {
316 DRM_DEBUG_KMS("tiling config is r6xx+ only!\n");
317 return -EINVAL;
318 }
319 break;
320 case RADEON_INFO_WANT_HYPERZ:
321 /* The "value" here is both an input and output parameter.
322 * If the input value is 1, filp requests hyper-z access.
323 * If the input value is 0, filp revokes its hyper-z access.
324 *
325 * When returning, the value is 1 if filp owns hyper-z access,
326 * 0 otherwise. */
327 if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
328 DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
329 return -EFAULT;
330 }
331 if (*value >= 2) {
332 DRM_DEBUG_KMS("WANT_HYPERZ: invalid value %d\n", *value);
333 return -EINVAL;
334 }
335 radeon_set_filp_rights(dev, &rdev->hyperz_filp, filp, value);
336 break;
337 case RADEON_INFO_WANT_CMASK:
338 /* The same logic as Hyper-Z. */
339 if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
340 DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
341 return -EFAULT;
342 }
343 if (*value >= 2) {
344 DRM_DEBUG_KMS("WANT_CMASK: invalid value %d\n", *value);
345 return -EINVAL;
346 }
347 radeon_set_filp_rights(dev, &rdev->cmask_filp, filp, value);
348 break;
349 case RADEON_INFO_CLOCK_CRYSTAL_FREQ:
350 /* return clock value in KHz */
351 if (rdev->asic->get_xclk)
352 *value = radeon_get_xclk(rdev) * 10;
353 else
354 *value = rdev->clock.spll.reference_freq * 10;
355 break;
356 case RADEON_INFO_NUM_BACKENDS:
357 if (rdev->family >= CHIP_BONAIRE)
358 *value = rdev->config.cik.max_backends_per_se *
359 rdev->config.cik.max_shader_engines;
360 else if (rdev->family >= CHIP_TAHITI)
361 *value = rdev->config.si.max_backends_per_se *
362 rdev->config.si.max_shader_engines;
363 else if (rdev->family >= CHIP_CAYMAN)
364 *value = rdev->config.cayman.max_backends_per_se *
365 rdev->config.cayman.max_shader_engines;
366 else if (rdev->family >= CHIP_CEDAR)
367 *value = rdev->config.evergreen.max_backends;
368 else if (rdev->family >= CHIP_RV770)
369 *value = rdev->config.rv770.max_backends;
370 else if (rdev->family >= CHIP_R600)
371 *value = rdev->config.r600.max_backends;
372 else {
373 return -EINVAL;
374 }
375 break;
376 case RADEON_INFO_NUM_TILE_PIPES:
377 if (rdev->family >= CHIP_BONAIRE)
378 *value = rdev->config.cik.max_tile_pipes;
379 else if (rdev->family >= CHIP_TAHITI)
380 *value = rdev->config.si.max_tile_pipes;
381 else if (rdev->family >= CHIP_CAYMAN)
382 *value = rdev->config.cayman.max_tile_pipes;
383 else if (rdev->family >= CHIP_CEDAR)
384 *value = rdev->config.evergreen.max_tile_pipes;
385 else if (rdev->family >= CHIP_RV770)
386 *value = rdev->config.rv770.max_tile_pipes;
387 else if (rdev->family >= CHIP_R600)
388 *value = rdev->config.r600.max_tile_pipes;
389 else {
390 return -EINVAL;
391 }
392 break;
393 case RADEON_INFO_FUSION_GART_WORKING:
394 *value = 1;
395 break;
396 case RADEON_INFO_BACKEND_MAP:
397 if (rdev->family >= CHIP_BONAIRE)
398 *value = rdev->config.cik.backend_map;
399 else if (rdev->family >= CHIP_TAHITI)
400 *value = rdev->config.si.backend_map;
401 else if (rdev->family >= CHIP_CAYMAN)
402 *value = rdev->config.cayman.backend_map;
403 else if (rdev->family >= CHIP_CEDAR)
404 *value = rdev->config.evergreen.backend_map;
405 else if (rdev->family >= CHIP_RV770)
406 *value = rdev->config.rv770.backend_map;
407 else if (rdev->family >= CHIP_R600)
408 *value = rdev->config.r600.backend_map;
409 else {
410 return -EINVAL;
411 }
412 break;
413 case RADEON_INFO_VA_START:
414 /* this is where we report if vm is supported or not */
415 if (rdev->family < CHIP_CAYMAN)
416 return -EINVAL;
417 *value = RADEON_VA_RESERVED_SIZE;
418 break;
419 case RADEON_INFO_IB_VM_MAX_SIZE:
420 /* this is where we report if vm is supported or not */
421 if (rdev->family < CHIP_CAYMAN)
422 return -EINVAL;
423 *value = RADEON_IB_VM_MAX_SIZE;
424 break;
425 case RADEON_INFO_MAX_PIPES:
426 if (rdev->family >= CHIP_BONAIRE)
427 *value = rdev->config.cik.max_cu_per_sh;
428 else if (rdev->family >= CHIP_TAHITI)
429 *value = rdev->config.si.max_cu_per_sh;
430 else if (rdev->family >= CHIP_CAYMAN)
431 *value = rdev->config.cayman.max_pipes_per_simd;
432 else if (rdev->family >= CHIP_CEDAR)
433 *value = rdev->config.evergreen.max_pipes;
434 else if (rdev->family >= CHIP_RV770)
435 *value = rdev->config.rv770.max_pipes;
436 else if (rdev->family >= CHIP_R600)
437 *value = rdev->config.r600.max_pipes;
438 else {
439 return -EINVAL;
440 }
441 break;
442 case RADEON_INFO_TIMESTAMP:
443 if (rdev->family < CHIP_R600) {
444 DRM_DEBUG_KMS("timestamp is r6xx+ only!\n");
445 return -EINVAL;
446 }
447 value = (uint32_t*)&value64;
448 value_size = sizeof(uint64_t);
449 value64 = radeon_get_gpu_clock_counter(rdev);
450 break;
451 case RADEON_INFO_MAX_SE:
452 if (rdev->family >= CHIP_BONAIRE)
453 *value = rdev->config.cik.max_shader_engines;
454 else if (rdev->family >= CHIP_TAHITI)
455 *value = rdev->config.si.max_shader_engines;
456 else if (rdev->family >= CHIP_CAYMAN)
457 *value = rdev->config.cayman.max_shader_engines;
458 else if (rdev->family >= CHIP_CEDAR)
459 *value = rdev->config.evergreen.num_ses;
460 else
461 *value = 1;
462 break;
463 case RADEON_INFO_MAX_SH_PER_SE:
464 if (rdev->family >= CHIP_BONAIRE)
465 *value = rdev->config.cik.max_sh_per_se;
466 else if (rdev->family >= CHIP_TAHITI)
467 *value = rdev->config.si.max_sh_per_se;
468 else
469 return -EINVAL;
470 break;
471 case RADEON_INFO_FASTFB_WORKING:
472 *value = rdev->fastfb_working;
473 break;
474 case RADEON_INFO_RING_WORKING:
475 if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
476 DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
477 return -EFAULT;
478 }
479 switch (*value) {
480 case RADEON_CS_RING_GFX:
481 case RADEON_CS_RING_COMPUTE:
482 *value = rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready;
483 break;
484 case RADEON_CS_RING_DMA:
485 *value = rdev->ring[R600_RING_TYPE_DMA_INDEX].ready;
486 *value |= rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready;
487 break;
488 case RADEON_CS_RING_UVD:
489 *value = rdev->ring[R600_RING_TYPE_UVD_INDEX].ready;
490 break;
491 case RADEON_CS_RING_VCE:
492 *value = rdev->ring[TN_RING_TYPE_VCE1_INDEX].ready;
493 break;
494 default:
495 return -EINVAL;
496 }
497 break;
498 case RADEON_INFO_SI_TILE_MODE_ARRAY:
499 if (rdev->family >= CHIP_BONAIRE) {
500 value = rdev->config.cik.tile_mode_array;
501 value_size = sizeof(uint32_t)*32;
502 } else if (rdev->family >= CHIP_TAHITI) {
503 value = rdev->config.si.tile_mode_array;
504 value_size = sizeof(uint32_t)*32;
505 } else {
506 DRM_DEBUG_KMS("tile mode array is si+ only!\n");
507 return -EINVAL;
508 }
509 break;
510 case RADEON_INFO_CIK_MACROTILE_MODE_ARRAY:
511 if (rdev->family >= CHIP_BONAIRE) {
512 value = rdev->config.cik.macrotile_mode_array;
513 value_size = sizeof(uint32_t)*16;
514 } else {
515 DRM_DEBUG_KMS("macrotile mode array is cik+ only!\n");
516 return -EINVAL;
517 }
518 break;
519 case RADEON_INFO_SI_CP_DMA_COMPUTE:
520 *value = 1;
521 break;
522 case RADEON_INFO_SI_BACKEND_ENABLED_MASK:
523 if (rdev->family >= CHIP_BONAIRE) {
524 *value = rdev->config.cik.backend_enable_mask;
525 } else if (rdev->family >= CHIP_TAHITI) {
526 *value = rdev->config.si.backend_enable_mask;
527 } else {
528 DRM_DEBUG_KMS("BACKEND_ENABLED_MASK is si+ only!\n");
529 return -EINVAL;
530 }
531 break;
532 case RADEON_INFO_MAX_SCLK:
533 if ((rdev->pm.pm_method == PM_METHOD_DPM) &&
534 rdev->pm.dpm_enabled)
535 *value = rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk * 10;
536 else
537 *value = rdev->pm.default_sclk * 10;
538 break;
539 case RADEON_INFO_VCE_FW_VERSION:
540 *value = rdev->vce.fw_version;
541 break;
542 case RADEON_INFO_VCE_FB_VERSION:
543 *value = rdev->vce.fb_version;
544 break;
545 case RADEON_INFO_NUM_BYTES_MOVED:
546 value = (uint32_t*)&value64;
547 value_size = sizeof(uint64_t);
548 value64 = atomic64_read(&rdev->num_bytes_moved);
549 break;
550 case RADEON_INFO_VRAM_USAGE:
551 value = (uint32_t*)&value64;
552 value_size = sizeof(uint64_t);
553 value64 = atomic64_read(&rdev->vram_usage);
554 break;
555 case RADEON_INFO_GTT_USAGE:
556 value = (uint32_t*)&value64;
557 value_size = sizeof(uint64_t);
558 value64 = atomic64_read(&rdev->gtt_usage);
559 break;
560 case RADEON_INFO_ACTIVE_CU_COUNT:
561 if (rdev->family >= CHIP_BONAIRE)
562 *value = rdev->config.cik.active_cus;
563 else if (rdev->family >= CHIP_TAHITI)
564 *value = rdev->config.si.active_cus;
565 else if (rdev->family >= CHIP_CAYMAN)
566 *value = rdev->config.cayman.active_simds;
567 else if (rdev->family >= CHIP_CEDAR)
568 *value = rdev->config.evergreen.active_simds;
569 else if (rdev->family >= CHIP_RV770)
570 *value = rdev->config.rv770.active_simds;
571 else if (rdev->family >= CHIP_R600)
572 *value = rdev->config.r600.active_simds;
573 else
574 *value = 1;
575 break;
576 case RADEON_INFO_CURRENT_GPU_TEMP:
577 /* get temperature in millidegrees C */
578 if (rdev->asic->pm.get_temperature)
579 *value = radeon_get_temperature(rdev);
580 else
581 *value = 0;
582 break;
583 case RADEON_INFO_CURRENT_GPU_SCLK:
584 /* get sclk in Mhz */
585 if (rdev->pm.dpm_enabled)
586 *value = radeon_dpm_get_current_sclk(rdev) / 100;
587 else
588 *value = rdev->pm.current_sclk / 100;
589 break;
590 case RADEON_INFO_CURRENT_GPU_MCLK:
591 /* get mclk in Mhz */
592 if (rdev->pm.dpm_enabled)
593 *value = radeon_dpm_get_current_mclk(rdev) / 100;
594 else
595 *value = rdev->pm.current_mclk / 100;
596 break;
597 case RADEON_INFO_READ_REG:
598 if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
599 DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
600 return -EFAULT;
601 }
602 if (radeon_get_allowed_info_register(rdev, *value, value))
603 return -EINVAL;
604 break;
605 case RADEON_INFO_VA_UNMAP_WORKING:
606 *value = true;
607 break;
608 case RADEON_INFO_GPU_RESET_COUNTER:
609 *value = atomic_read(&rdev->gpu_reset_counter);
610 break;
611 default:
612 DRM_DEBUG_KMS("Invalid request %d\n", info->request);
613 return -EINVAL;
614 }
615 if (copy_to_user(value_ptr, (char*)value, value_size)) {
616 DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__);
617 return -EFAULT;
618 }
619 return 0;
620 }
621
622
623 /*
624 * Outdated mess for old drm with Xorg being in charge (void function now).
625 */
626 /**
627 * radeon_driver_lastclose_kms - drm callback for last close
628 *
629 * @dev: drm dev pointer
630 *
631 * Switch vga_switcheroo state after last close (all asics).
632 */
radeon_driver_lastclose_kms(struct drm_device * dev)633 void radeon_driver_lastclose_kms(struct drm_device *dev)
634 {
635 drm_fb_helper_lastclose(dev);
636 vga_switcheroo_process_delayed_switch();
637 }
638
639 /**
640 * radeon_driver_open_kms - drm callback for open
641 *
642 * @dev: drm dev pointer
643 * @file_priv: drm file
644 *
645 * On device open, init vm on cayman+ (all asics).
646 * Returns 0 on success, error on failure.
647 */
radeon_driver_open_kms(struct drm_device * dev,struct drm_file * file_priv)648 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
649 {
650 struct radeon_device *rdev = dev->dev_private;
651 struct radeon_fpriv *fpriv;
652 struct radeon_vm *vm;
653 int r;
654
655 file_priv->driver_priv = NULL;
656
657 r = pm_runtime_get_sync(dev->dev);
658 if (r < 0) {
659 pm_runtime_put_autosuspend(dev->dev);
660 return r;
661 }
662
663 /* new gpu have virtual address space support */
664 if (rdev->family >= CHIP_CAYMAN) {
665
666 fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
667 if (unlikely(!fpriv)) {
668 r = -ENOMEM;
669 goto err_suspend;
670 }
671
672 if (rdev->accel_working) {
673 vm = &fpriv->vm;
674 r = radeon_vm_init(rdev, vm);
675 if (r)
676 goto err_fpriv;
677
678 r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
679 if (r)
680 goto err_vm_fini;
681
682 /* map the ib pool buffer read only into
683 * virtual address space */
684 vm->ib_bo_va = radeon_vm_bo_add(rdev, vm,
685 rdev->ring_tmp_bo.bo);
686 if (!vm->ib_bo_va) {
687 r = -ENOMEM;
688 goto err_vm_fini;
689 }
690
691 r = radeon_vm_bo_set_addr(rdev, vm->ib_bo_va,
692 RADEON_VA_IB_OFFSET,
693 RADEON_VM_PAGE_READABLE |
694 RADEON_VM_PAGE_SNOOPED);
695 if (r)
696 goto err_vm_fini;
697 }
698 file_priv->driver_priv = fpriv;
699 }
700
701 pm_runtime_mark_last_busy(dev->dev);
702 pm_runtime_put_autosuspend(dev->dev);
703 return 0;
704
705 err_vm_fini:
706 radeon_vm_fini(rdev, vm);
707 err_fpriv:
708 kfree(fpriv);
709
710 err_suspend:
711 pm_runtime_mark_last_busy(dev->dev);
712 pm_runtime_put_autosuspend(dev->dev);
713 return r;
714 }
715
716 /**
717 * radeon_driver_postclose_kms - drm callback for post close
718 *
719 * @dev: drm dev pointer
720 * @file_priv: drm file
721 *
722 * On device close, tear down hyperz and cmask filps on r1xx-r5xx
723 * (all asics). And tear down vm on cayman+ (all asics).
724 */
radeon_driver_postclose_kms(struct drm_device * dev,struct drm_file * file_priv)725 void radeon_driver_postclose_kms(struct drm_device *dev,
726 struct drm_file *file_priv)
727 {
728 struct radeon_device *rdev = dev->dev_private;
729
730 pm_runtime_get_sync(dev->dev);
731
732 mutex_lock(&rdev->gem.mutex);
733 if (rdev->hyperz_filp == file_priv)
734 rdev->hyperz_filp = NULL;
735 if (rdev->cmask_filp == file_priv)
736 rdev->cmask_filp = NULL;
737 mutex_unlock(&rdev->gem.mutex);
738
739 radeon_uvd_free_handles(rdev, file_priv);
740 radeon_vce_free_handles(rdev, file_priv);
741
742 /* new gpu have virtual address space support */
743 if (rdev->family >= CHIP_CAYMAN && file_priv->driver_priv) {
744 struct radeon_fpriv *fpriv = file_priv->driver_priv;
745 struct radeon_vm *vm = &fpriv->vm;
746 int r;
747
748 if (rdev->accel_working) {
749 r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
750 if (!r) {
751 if (vm->ib_bo_va)
752 radeon_vm_bo_rmv(rdev, vm->ib_bo_va);
753 radeon_bo_unreserve(rdev->ring_tmp_bo.bo);
754 }
755 radeon_vm_fini(rdev, vm);
756 }
757
758 kfree(fpriv);
759 file_priv->driver_priv = NULL;
760 }
761 pm_runtime_mark_last_busy(dev->dev);
762 pm_runtime_put_autosuspend(dev->dev);
763 }
764
765 /*
766 * VBlank related functions.
767 */
768 /**
769 * radeon_get_vblank_counter_kms - get frame count
770 *
771 * @crtc: crtc to get the frame count from
772 *
773 * Gets the frame count on the requested crtc (all asics).
774 * Returns frame count on success, -EINVAL on failure.
775 */
radeon_get_vblank_counter_kms(struct drm_crtc * crtc)776 u32 radeon_get_vblank_counter_kms(struct drm_crtc *crtc)
777 {
778 struct drm_device *dev = crtc->dev;
779 unsigned int pipe = crtc->index;
780 int vpos, hpos, stat;
781 u32 count;
782 struct radeon_device *rdev = dev->dev_private;
783
784 if (pipe >= rdev->num_crtc) {
785 DRM_ERROR("Invalid crtc %u\n", pipe);
786 return -EINVAL;
787 }
788
789 /* The hw increments its frame counter at start of vsync, not at start
790 * of vblank, as is required by DRM core vblank counter handling.
791 * Cook the hw count here to make it appear to the caller as if it
792 * incremented at start of vblank. We measure distance to start of
793 * vblank in vpos. vpos therefore will be >= 0 between start of vblank
794 * and start of vsync, so vpos >= 0 means to bump the hw frame counter
795 * result by 1 to give the proper appearance to caller.
796 */
797 if (rdev->mode_info.crtcs[pipe]) {
798 /* Repeat readout if needed to provide stable result if
799 * we cross start of vsync during the queries.
800 */
801 do {
802 count = radeon_get_vblank_counter(rdev, pipe);
803 /* Ask radeon_get_crtc_scanoutpos to return vpos as
804 * distance to start of vblank, instead of regular
805 * vertical scanout pos.
806 */
807 stat = radeon_get_crtc_scanoutpos(
808 dev, pipe, GET_DISTANCE_TO_VBLANKSTART,
809 &vpos, &hpos, NULL, NULL,
810 &rdev->mode_info.crtcs[pipe]->base.hwmode);
811 } while (count != radeon_get_vblank_counter(rdev, pipe));
812
813 if (((stat & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE)) !=
814 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE))) {
815 DRM_DEBUG_VBL("Query failed! stat %d\n", stat);
816 }
817 else {
818 DRM_DEBUG_VBL("crtc %u: dist from vblank start %d\n",
819 pipe, vpos);
820
821 /* Bump counter if we are at >= leading edge of vblank,
822 * but before vsync where vpos would turn negative and
823 * the hw counter really increments.
824 */
825 if (vpos >= 0)
826 count++;
827 }
828 }
829 else {
830 /* Fallback to use value as is. */
831 count = radeon_get_vblank_counter(rdev, pipe);
832 DRM_DEBUG_VBL("NULL mode info! Returned count may be wrong.\n");
833 }
834
835 return count;
836 }
837
838 /**
839 * radeon_enable_vblank_kms - enable vblank interrupt
840 *
841 * @crtc: crtc to enable vblank interrupt for
842 *
843 * Enable the interrupt on the requested crtc (all asics).
844 * Returns 0 on success, -EINVAL on failure.
845 */
radeon_enable_vblank_kms(struct drm_crtc * crtc)846 int radeon_enable_vblank_kms(struct drm_crtc *crtc)
847 {
848 struct drm_device *dev = crtc->dev;
849 unsigned int pipe = crtc->index;
850 struct radeon_device *rdev = dev->dev_private;
851 unsigned long irqflags;
852 int r;
853
854 if (pipe >= rdev->num_crtc) {
855 DRM_ERROR("Invalid crtc %d\n", pipe);
856 return -EINVAL;
857 }
858
859 spin_lock_irqsave(&rdev->irq.lock, irqflags);
860 rdev->irq.crtc_vblank_int[pipe] = true;
861 r = radeon_irq_set(rdev);
862 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
863 return r;
864 }
865
866 /**
867 * radeon_disable_vblank_kms - disable vblank interrupt
868 *
869 * @crtc: crtc to disable vblank interrupt for
870 *
871 * Disable the interrupt on the requested crtc (all asics).
872 */
radeon_disable_vblank_kms(struct drm_crtc * crtc)873 void radeon_disable_vblank_kms(struct drm_crtc *crtc)
874 {
875 struct drm_device *dev = crtc->dev;
876 unsigned int pipe = crtc->index;
877 struct radeon_device *rdev = dev->dev_private;
878 unsigned long irqflags;
879
880 if (pipe >= rdev->num_crtc) {
881 DRM_ERROR("Invalid crtc %d\n", pipe);
882 return;
883 }
884
885 spin_lock_irqsave(&rdev->irq.lock, irqflags);
886 rdev->irq.crtc_vblank_int[pipe] = false;
887 radeon_irq_set(rdev);
888 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
889 }
890