1 /**
2  * \file radeon_drv.c
3  * ATI Radeon driver
4  *
5  * \author Gareth Hughes <gareth@valinux.com>
6  */
7 
8 /*
9  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
10  * All Rights Reserved.
11  *
12  * Permission is hereby granted, free of charge, to any person obtaining a
13  * copy of this software and associated documentation files (the "Software"),
14  * to deal in the Software without restriction, including without limitation
15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16  * and/or sell copies of the Software, and to permit persons to whom the
17  * Software is furnished to do so, subject to the following conditions:
18  *
19  * The above copyright notice and this permission notice (including the next
20  * paragraph) shall be included in all copies or substantial portions of the
21  * Software.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
24  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
26  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
27  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
28  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
29  * OTHER DEALINGS IN THE SOFTWARE.
30  */
31 
32 
33 #include <linux/compat.h>
34 #include <linux/console.h>
35 #include <linux/module.h>
36 #include <linux/pm_runtime.h>
37 #include <linux/vga_switcheroo.h>
38 
39 #include <drm/drm_crtc_helper.h>
40 #include <drm/drm_drv.h>
41 #include <drm/drm_fb_helper.h>
42 #include <drm/drm_file.h>
43 #include <drm/drm_gem.h>
44 #include <drm/drm_ioctl.h>
45 #include <drm/drm_pci.h>
46 #include <drm/drm_pciids.h>
47 #include <drm/drm_probe_helper.h>
48 #include <drm/drm_vblank.h>
49 #include <drm/radeon_drm.h>
50 
51 #include "radeon_drv.h"
52 
53 /*
54  * KMS wrapper.
55  * - 2.0.0 - initial interface
56  * - 2.1.0 - add square tiling interface
57  * - 2.2.0 - add r6xx/r7xx const buffer support
58  * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs
59  * - 2.4.0 - add crtc id query
60  * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen
61  * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500)
62  *   2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs
63  *   2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query
64  *   2.9.0 - r600 tiling (s3tc,rgtc) working, SET_PREDICATION packet 3 on r600 + eg, backend query
65  *   2.10.0 - fusion 2D tiling
66  *   2.11.0 - backend map, initial compute support for the CS checker
67  *   2.12.0 - RADEON_CS_KEEP_TILING_FLAGS
68  *   2.13.0 - virtual memory support, streamout
69  *   2.14.0 - add evergreen tiling informations
70  *   2.15.0 - add max_pipes query
71  *   2.16.0 - fix evergreen 2D tiled surface calculation
72  *   2.17.0 - add STRMOUT_BASE_UPDATE for r7xx
73  *   2.18.0 - r600-eg: allow "invalid" DB formats
74  *   2.19.0 - r600-eg: MSAA textures
75  *   2.20.0 - r600-si: RADEON_INFO_TIMESTAMP query
76  *   2.21.0 - r600-r700: FMASK and CMASK
77  *   2.22.0 - r600 only: RESOLVE_BOX allowed
78  *   2.23.0 - allow STRMOUT_BASE_UPDATE on RS780 and RS880
79  *   2.24.0 - eg only: allow MIP_ADDRESS=0 for MSAA textures
80  *   2.25.0 - eg+: new info request for num SE and num SH
81  *   2.26.0 - r600-eg: fix htile size computation
82  *   2.27.0 - r600-SI: Add CS ioctl support for async DMA
83  *   2.28.0 - r600-eg: Add MEM_WRITE packet support
84  *   2.29.0 - R500 FP16 color clear registers
85  *   2.30.0 - fix for FMASK texturing
86  *   2.31.0 - Add fastfb support for rs690
87  *   2.32.0 - new info request for rings working
88  *   2.33.0 - Add SI tiling mode array query
89  *   2.34.0 - Add CIK tiling mode array query
90  *   2.35.0 - Add CIK macrotile mode array query
91  *   2.36.0 - Fix CIK DCE tiling setup
92  *   2.37.0 - allow GS ring setup on r6xx/r7xx
93  *   2.38.0 - RADEON_GEM_OP (GET_INITIAL_DOMAIN, SET_INITIAL_DOMAIN),
94  *            CIK: 1D and linear tiling modes contain valid PIPE_CONFIG
95  *   2.39.0 - Add INFO query for number of active CUs
96  *   2.40.0 - Add RADEON_GEM_GTT_WC/UC, flush HDP cache before submitting
97  *            CS to GPU on >= r600
98  *   2.41.0 - evergreen/cayman: Add SET_BASE/DRAW_INDIRECT command parsing support
99  *   2.42.0 - Add VCE/VUI (Video Usability Information) support
100  *   2.43.0 - RADEON_INFO_GPU_RESET_COUNTER
101  *   2.44.0 - SET_APPEND_CNT packet3 support
102  *   2.45.0 - Allow setting shader registers using DMA/COPY packet3 on SI
103  *   2.46.0 - Add PFP_SYNC_ME support on evergreen
104  *   2.47.0 - Add UVD_NO_OP register support
105  *   2.48.0 - TA_CS_BC_BASE_ADDR allowed on SI
106  *   2.49.0 - DRM_RADEON_GEM_INFO ioctl returns correct vram_size/visible values
107  *   2.50.0 - Allows unaligned shader loads on CIK. (needed by OpenGL)
108  */
109 #define KMS_DRIVER_MAJOR	2
110 #define KMS_DRIVER_MINOR	50
111 #define KMS_DRIVER_PATCHLEVEL	0
112 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
113 void radeon_driver_unload_kms(struct drm_device *dev);
114 void radeon_driver_lastclose_kms(struct drm_device *dev);
115 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv);
116 void radeon_driver_postclose_kms(struct drm_device *dev,
117 				 struct drm_file *file_priv);
118 int radeon_suspend_kms(struct drm_device *dev, bool suspend,
119 		       bool fbcon, bool freeze);
120 int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon);
121 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe);
122 int radeon_enable_vblank_kms(struct drm_device *dev, unsigned int pipe);
123 void radeon_disable_vblank_kms(struct drm_device *dev, unsigned int pipe);
124 void radeon_driver_irq_preinstall_kms(struct drm_device *dev);
125 int radeon_driver_irq_postinstall_kms(struct drm_device *dev);
126 void radeon_driver_irq_uninstall_kms(struct drm_device *dev);
127 irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg);
128 void radeon_gem_object_free(struct drm_gem_object *obj);
129 int radeon_gem_object_open(struct drm_gem_object *obj,
130 				struct drm_file *file_priv);
131 void radeon_gem_object_close(struct drm_gem_object *obj,
132 				struct drm_file *file_priv);
133 struct dma_buf *radeon_gem_prime_export(struct drm_gem_object *gobj,
134 					int flags);
135 extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, unsigned int crtc,
136 				      unsigned int flags, int *vpos, int *hpos,
137 				      ktime_t *stime, ktime_t *etime,
138 				      const struct drm_display_mode *mode);
139 extern bool radeon_is_px(struct drm_device *dev);
140 extern const struct drm_ioctl_desc radeon_ioctls_kms[];
141 extern int radeon_max_kms_ioctl;
142 int radeon_mmap(struct file *filp, struct vm_area_struct *vma);
143 int radeon_mode_dumb_mmap(struct drm_file *filp,
144 			  struct drm_device *dev,
145 			  uint32_t handle, uint64_t *offset_p);
146 int radeon_mode_dumb_create(struct drm_file *file_priv,
147 			    struct drm_device *dev,
148 			    struct drm_mode_create_dumb *args);
149 struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj);
150 struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev,
151 							struct dma_buf_attachment *,
152 							struct sg_table *sg);
153 int radeon_gem_prime_pin(struct drm_gem_object *obj);
154 void radeon_gem_prime_unpin(struct drm_gem_object *obj);
155 void *radeon_gem_prime_vmap(struct drm_gem_object *obj);
156 void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
157 
158 /* atpx handler */
159 #if defined(CONFIG_VGA_SWITCHEROO)
160 void radeon_register_atpx_handler(void);
161 void radeon_unregister_atpx_handler(void);
162 bool radeon_has_atpx_dgpu_power_cntl(void);
163 bool radeon_is_atpx_hybrid(void);
164 #else
165 static inline void radeon_register_atpx_handler(void) {}
166 static inline void radeon_unregister_atpx_handler(void) {}
167 static inline bool radeon_has_atpx_dgpu_power_cntl(void) { return false; }
168 static inline bool radeon_is_atpx_hybrid(void) { return false; }
169 #endif
170 
171 int radeon_no_wb;
172 int radeon_modeset = -1;
173 int radeon_dynclks = -1;
174 int radeon_r4xx_atom = 0;
175 #ifdef __powerpc__
176 /* Default to PCI on PowerPC (fdo #95017) */
177 int radeon_agpmode = -1;
178 #else
179 int radeon_agpmode = 0;
180 #endif
181 int radeon_vram_limit = 0;
182 int radeon_gart_size = -1; /* auto */
183 int radeon_benchmarking = 0;
184 int radeon_testing = 0;
185 int radeon_connector_table = 0;
186 int radeon_tv = 1;
187 int radeon_audio = -1;
188 int radeon_disp_priority = 0;
189 int radeon_hw_i2c = 0;
190 int radeon_pcie_gen2 = -1;
191 int radeon_msi = -1;
192 int radeon_lockup_timeout = 10000;
193 int radeon_fastfb = 0;
194 int radeon_dpm = -1;
195 int radeon_aspm = -1;
196 int radeon_runtime_pm = -1;
197 int radeon_hard_reset = 0;
198 int radeon_vm_size = 8;
199 int radeon_vm_block_size = -1;
200 int radeon_deep_color = 0;
201 int radeon_use_pflipirq = 2;
202 int radeon_bapm = -1;
203 int radeon_backlight = -1;
204 int radeon_auxch = -1;
205 int radeon_mst = 0;
206 int radeon_uvd = 1;
207 int radeon_vce = 1;
208 
209 MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
210 module_param_named(no_wb, radeon_no_wb, int, 0444);
211 
212 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
213 module_param_named(modeset, radeon_modeset, int, 0400);
214 
215 MODULE_PARM_DESC(dynclks, "Disable/Enable dynamic clocks");
216 module_param_named(dynclks, radeon_dynclks, int, 0444);
217 
218 MODULE_PARM_DESC(r4xx_atom, "Enable ATOMBIOS modesetting for R4xx");
219 module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
220 
221 MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
222 module_param_named(vramlimit, radeon_vram_limit, int, 0600);
223 
224 MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
225 module_param_named(agpmode, radeon_agpmode, int, 0444);
226 
227 MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
228 module_param_named(gartsize, radeon_gart_size, int, 0600);
229 
230 MODULE_PARM_DESC(benchmark, "Run benchmark");
231 module_param_named(benchmark, radeon_benchmarking, int, 0444);
232 
233 MODULE_PARM_DESC(test, "Run tests");
234 module_param_named(test, radeon_testing, int, 0444);
235 
236 MODULE_PARM_DESC(connector_table, "Force connector table");
237 module_param_named(connector_table, radeon_connector_table, int, 0444);
238 
239 MODULE_PARM_DESC(tv, "TV enable (0 = disable)");
240 module_param_named(tv, radeon_tv, int, 0444);
241 
242 MODULE_PARM_DESC(audio, "Audio enable (-1 = auto, 0 = disable, 1 = enable)");
243 module_param_named(audio, radeon_audio, int, 0444);
244 
245 MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
246 module_param_named(disp_priority, radeon_disp_priority, int, 0444);
247 
248 MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)");
249 module_param_named(hw_i2c, radeon_hw_i2c, int, 0444);
250 
251 MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable)");
252 module_param_named(pcie_gen2, radeon_pcie_gen2, int, 0444);
253 
254 MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)");
255 module_param_named(msi, radeon_msi, int, 0444);
256 
257 MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (default 10000 = 10 seconds, 0 = disable)");
258 module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);
259 
260 MODULE_PARM_DESC(fastfb, "Direct FB access for IGP chips (0 = disable, 1 = enable)");
261 module_param_named(fastfb, radeon_fastfb, int, 0444);
262 
263 MODULE_PARM_DESC(dpm, "DPM support (1 = enable, 0 = disable, -1 = auto)");
264 module_param_named(dpm, radeon_dpm, int, 0444);
265 
266 MODULE_PARM_DESC(aspm, "ASPM support (1 = enable, 0 = disable, -1 = auto)");
267 module_param_named(aspm, radeon_aspm, int, 0444);
268 
269 MODULE_PARM_DESC(runpm, "PX runtime pm (1 = force enable, 0 = disable, -1 = PX only default)");
270 module_param_named(runpm, radeon_runtime_pm, int, 0444);
271 
272 MODULE_PARM_DESC(hard_reset, "PCI config reset (1 = force enable, 0 = disable (default))");
273 module_param_named(hard_reset, radeon_hard_reset, int, 0444);
274 
275 MODULE_PARM_DESC(vm_size, "VM address space size in gigabytes (default 4GB)");
276 module_param_named(vm_size, radeon_vm_size, int, 0444);
277 
278 MODULE_PARM_DESC(vm_block_size, "VM page table size in bits (default depending on vm_size)");
279 module_param_named(vm_block_size, radeon_vm_block_size, int, 0444);
280 
281 MODULE_PARM_DESC(deep_color, "Deep Color support (1 = enable, 0 = disable (default))");
282 module_param_named(deep_color, radeon_deep_color, int, 0444);
283 
284 MODULE_PARM_DESC(use_pflipirq, "Pflip irqs for pageflip completion (0 = disable, 1 = as fallback, 2 = exclusive (default))");
285 module_param_named(use_pflipirq, radeon_use_pflipirq, int, 0444);
286 
287 MODULE_PARM_DESC(bapm, "BAPM support (1 = enable, 0 = disable, -1 = auto)");
288 module_param_named(bapm, radeon_bapm, int, 0444);
289 
290 MODULE_PARM_DESC(backlight, "backlight support (1 = enable, 0 = disable, -1 = auto)");
291 module_param_named(backlight, radeon_backlight, int, 0444);
292 
293 MODULE_PARM_DESC(auxch, "Use native auxch experimental support (1 = enable, 0 = disable, -1 = auto)");
294 module_param_named(auxch, radeon_auxch, int, 0444);
295 
296 MODULE_PARM_DESC(mst, "DisplayPort MST experimental support (1 = enable, 0 = disable)");
297 module_param_named(mst, radeon_mst, int, 0444);
298 
299 MODULE_PARM_DESC(uvd, "uvd enable/disable uvd support (1 = enable, 0 = disable)");
300 module_param_named(uvd, radeon_uvd, int, 0444);
301 
302 MODULE_PARM_DESC(vce, "vce enable/disable vce support (1 = enable, 0 = disable)");
303 module_param_named(vce, radeon_vce, int, 0444);
304 
305 int radeon_si_support = 1;
306 MODULE_PARM_DESC(si_support, "SI support (1 = enabled (default), 0 = disabled)");
307 module_param_named(si_support, radeon_si_support, int, 0444);
308 
309 int radeon_cik_support = 1;
310 MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled (default), 0 = disabled)");
311 module_param_named(cik_support, radeon_cik_support, int, 0444);
312 
313 static struct pci_device_id pciidlist[] = {
314 	radeon_PCI_IDS
315 };
316 
317 MODULE_DEVICE_TABLE(pci, pciidlist);
318 
319 static struct drm_driver kms_driver;
320 
321 bool radeon_device_is_virtual(void);
322 
323 static int radeon_pci_probe(struct pci_dev *pdev,
324 			    const struct pci_device_id *ent)
325 {
326 	unsigned long flags = 0;
327 	int ret;
328 
329 	if (!ent)
330 		return -ENODEV; /* Avoid NULL-ptr deref in drm_get_pci_dev */
331 
332 	flags = ent->driver_data;
333 
334 	if (!radeon_si_support) {
335 		switch (flags & RADEON_FAMILY_MASK) {
336 		case CHIP_TAHITI:
337 		case CHIP_PITCAIRN:
338 		case CHIP_VERDE:
339 		case CHIP_OLAND:
340 		case CHIP_HAINAN:
341 			dev_info(&pdev->dev,
342 				 "SI support disabled by module param\n");
343 			return -ENODEV;
344 		}
345 	}
346 	if (!radeon_cik_support) {
347 		switch (flags & RADEON_FAMILY_MASK) {
348 		case CHIP_KAVERI:
349 		case CHIP_BONAIRE:
350 		case CHIP_HAWAII:
351 		case CHIP_KABINI:
352 		case CHIP_MULLINS:
353 			dev_info(&pdev->dev,
354 				 "CIK support disabled by module param\n");
355 			return -ENODEV;
356 		}
357 	}
358 
359 	if (vga_switcheroo_client_probe_defer(pdev))
360 		return -EPROBE_DEFER;
361 
362 	/* Get rid of things like offb */
363 	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb");
364 	if (ret)
365 		return ret;
366 
367 	return drm_get_pci_dev(pdev, ent, &kms_driver);
368 }
369 
370 static void
371 radeon_pci_remove(struct pci_dev *pdev)
372 {
373 	struct drm_device *dev = pci_get_drvdata(pdev);
374 
375 	drm_put_dev(dev);
376 }
377 
378 static void
379 radeon_pci_shutdown(struct pci_dev *pdev)
380 {
381 	/* if we are running in a VM, make sure the device
382 	 * torn down properly on reboot/shutdown
383 	 */
384 	if (radeon_device_is_virtual())
385 		radeon_pci_remove(pdev);
386 }
387 
388 static int radeon_pmops_suspend(struct device *dev)
389 {
390 	struct drm_device *drm_dev = dev_get_drvdata(dev);
391 	return radeon_suspend_kms(drm_dev, true, true, false);
392 }
393 
394 static int radeon_pmops_resume(struct device *dev)
395 {
396 	struct drm_device *drm_dev = dev_get_drvdata(dev);
397 
398 	/* GPU comes up enabled by the bios on resume */
399 	if (radeon_is_px(drm_dev)) {
400 		pm_runtime_disable(dev);
401 		pm_runtime_set_active(dev);
402 		pm_runtime_enable(dev);
403 	}
404 
405 	return radeon_resume_kms(drm_dev, true, true);
406 }
407 
408 static int radeon_pmops_freeze(struct device *dev)
409 {
410 	struct drm_device *drm_dev = dev_get_drvdata(dev);
411 	return radeon_suspend_kms(drm_dev, false, true, true);
412 }
413 
414 static int radeon_pmops_thaw(struct device *dev)
415 {
416 	struct drm_device *drm_dev = dev_get_drvdata(dev);
417 	return radeon_resume_kms(drm_dev, false, true);
418 }
419 
420 static int radeon_pmops_runtime_suspend(struct device *dev)
421 {
422 	struct pci_dev *pdev = to_pci_dev(dev);
423 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
424 	int ret;
425 
426 	if (!radeon_is_px(drm_dev)) {
427 		pm_runtime_forbid(dev);
428 		return -EBUSY;
429 	}
430 
431 	drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
432 	drm_kms_helper_poll_disable(drm_dev);
433 
434 	ret = radeon_suspend_kms(drm_dev, false, false, false);
435 	pci_save_state(pdev);
436 	pci_disable_device(pdev);
437 	pci_ignore_hotplug(pdev);
438 	if (radeon_is_atpx_hybrid())
439 		pci_set_power_state(pdev, PCI_D3cold);
440 	else if (!radeon_has_atpx_dgpu_power_cntl())
441 		pci_set_power_state(pdev, PCI_D3hot);
442 	drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
443 
444 	return 0;
445 }
446 
447 static int radeon_pmops_runtime_resume(struct device *dev)
448 {
449 	struct pci_dev *pdev = to_pci_dev(dev);
450 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
451 	int ret;
452 
453 	if (!radeon_is_px(drm_dev))
454 		return -EINVAL;
455 
456 	drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
457 
458 	if (radeon_is_atpx_hybrid() ||
459 	    !radeon_has_atpx_dgpu_power_cntl())
460 		pci_set_power_state(pdev, PCI_D0);
461 	pci_restore_state(pdev);
462 	ret = pci_enable_device(pdev);
463 	if (ret)
464 		return ret;
465 	pci_set_master(pdev);
466 
467 	ret = radeon_resume_kms(drm_dev, false, false);
468 	drm_kms_helper_poll_enable(drm_dev);
469 	drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
470 	return 0;
471 }
472 
473 static int radeon_pmops_runtime_idle(struct device *dev)
474 {
475 	struct drm_device *drm_dev = dev_get_drvdata(dev);
476 	struct drm_crtc *crtc;
477 
478 	if (!radeon_is_px(drm_dev)) {
479 		pm_runtime_forbid(dev);
480 		return -EBUSY;
481 	}
482 
483 	list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) {
484 		if (crtc->enabled) {
485 			DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
486 			return -EBUSY;
487 		}
488 	}
489 
490 	pm_runtime_mark_last_busy(dev);
491 	pm_runtime_autosuspend(dev);
492 	/* we don't want the main rpm_idle to call suspend - we want to autosuspend */
493 	return 1;
494 }
495 
496 long radeon_drm_ioctl(struct file *filp,
497 		      unsigned int cmd, unsigned long arg)
498 {
499 	struct drm_file *file_priv = filp->private_data;
500 	struct drm_device *dev;
501 	long ret;
502 	dev = file_priv->minor->dev;
503 	ret = pm_runtime_get_sync(dev->dev);
504 	if (ret < 0)
505 		return ret;
506 
507 	ret = drm_ioctl(filp, cmd, arg);
508 
509 	pm_runtime_mark_last_busy(dev->dev);
510 	pm_runtime_put_autosuspend(dev->dev);
511 	return ret;
512 }
513 
514 #ifdef CONFIG_COMPAT
515 static long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
516 {
517 	unsigned int nr = DRM_IOCTL_NR(cmd);
518 	int ret;
519 
520 	if (nr < DRM_COMMAND_BASE)
521 		return drm_compat_ioctl(filp, cmd, arg);
522 
523 	ret = radeon_drm_ioctl(filp, cmd, arg);
524 
525 	return ret;
526 }
527 #endif
528 
529 static const struct dev_pm_ops radeon_pm_ops = {
530 	.suspend = radeon_pmops_suspend,
531 	.resume = radeon_pmops_resume,
532 	.freeze = radeon_pmops_freeze,
533 	.thaw = radeon_pmops_thaw,
534 	.poweroff = radeon_pmops_freeze,
535 	.restore = radeon_pmops_resume,
536 	.runtime_suspend = radeon_pmops_runtime_suspend,
537 	.runtime_resume = radeon_pmops_runtime_resume,
538 	.runtime_idle = radeon_pmops_runtime_idle,
539 };
540 
541 static const struct file_operations radeon_driver_kms_fops = {
542 	.owner = THIS_MODULE,
543 	.open = drm_open,
544 	.release = drm_release,
545 	.unlocked_ioctl = radeon_drm_ioctl,
546 	.mmap = radeon_mmap,
547 	.poll = drm_poll,
548 	.read = drm_read,
549 #ifdef CONFIG_COMPAT
550 	.compat_ioctl = radeon_kms_compat_ioctl,
551 #endif
552 };
553 
554 static bool
555 radeon_get_crtc_scanout_position(struct drm_device *dev, unsigned int pipe,
556 				 bool in_vblank_irq, int *vpos, int *hpos,
557 				 ktime_t *stime, ktime_t *etime,
558 				 const struct drm_display_mode *mode)
559 {
560 	return radeon_get_crtc_scanoutpos(dev, pipe, 0, vpos, hpos,
561 					  stime, etime, mode);
562 }
563 
564 static struct drm_driver kms_driver = {
565 	.driver_features =
566 	    DRIVER_USE_AGP | DRIVER_GEM | DRIVER_RENDER,
567 	.load = radeon_driver_load_kms,
568 	.open = radeon_driver_open_kms,
569 	.postclose = radeon_driver_postclose_kms,
570 	.lastclose = radeon_driver_lastclose_kms,
571 	.unload = radeon_driver_unload_kms,
572 	.get_vblank_counter = radeon_get_vblank_counter_kms,
573 	.enable_vblank = radeon_enable_vblank_kms,
574 	.disable_vblank = radeon_disable_vblank_kms,
575 	.get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos,
576 	.get_scanout_position = radeon_get_crtc_scanout_position,
577 	.irq_preinstall = radeon_driver_irq_preinstall_kms,
578 	.irq_postinstall = radeon_driver_irq_postinstall_kms,
579 	.irq_uninstall = radeon_driver_irq_uninstall_kms,
580 	.irq_handler = radeon_driver_irq_handler_kms,
581 	.ioctls = radeon_ioctls_kms,
582 	.gem_free_object_unlocked = radeon_gem_object_free,
583 	.gem_open_object = radeon_gem_object_open,
584 	.gem_close_object = radeon_gem_object_close,
585 	.dumb_create = radeon_mode_dumb_create,
586 	.dumb_map_offset = radeon_mode_dumb_mmap,
587 	.fops = &radeon_driver_kms_fops,
588 
589 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
590 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
591 	.gem_prime_export = radeon_gem_prime_export,
592 	.gem_prime_pin = radeon_gem_prime_pin,
593 	.gem_prime_unpin = radeon_gem_prime_unpin,
594 	.gem_prime_get_sg_table = radeon_gem_prime_get_sg_table,
595 	.gem_prime_import_sg_table = radeon_gem_prime_import_sg_table,
596 	.gem_prime_vmap = radeon_gem_prime_vmap,
597 	.gem_prime_vunmap = radeon_gem_prime_vunmap,
598 
599 	.name = DRIVER_NAME,
600 	.desc = DRIVER_DESC,
601 	.date = DRIVER_DATE,
602 	.major = KMS_DRIVER_MAJOR,
603 	.minor = KMS_DRIVER_MINOR,
604 	.patchlevel = KMS_DRIVER_PATCHLEVEL,
605 };
606 
607 static struct drm_driver *driver;
608 static struct pci_driver *pdriver;
609 
610 static struct pci_driver radeon_kms_pci_driver = {
611 	.name = DRIVER_NAME,
612 	.id_table = pciidlist,
613 	.probe = radeon_pci_probe,
614 	.remove = radeon_pci_remove,
615 	.shutdown = radeon_pci_shutdown,
616 	.driver.pm = &radeon_pm_ops,
617 };
618 
619 static int __init radeon_init(void)
620 {
621 	if (vgacon_text_force() && radeon_modeset == -1) {
622 		DRM_INFO("VGACON disable radeon kernel modesetting.\n");
623 		radeon_modeset = 0;
624 	}
625 	/* set to modesetting by default if not nomodeset */
626 	if (radeon_modeset == -1)
627 		radeon_modeset = 1;
628 
629 	if (radeon_modeset == 1) {
630 		DRM_INFO("radeon kernel modesetting enabled.\n");
631 		driver = &kms_driver;
632 		pdriver = &radeon_kms_pci_driver;
633 		driver->driver_features |= DRIVER_MODESET;
634 		driver->num_ioctls = radeon_max_kms_ioctl;
635 		radeon_register_atpx_handler();
636 
637 	} else {
638 		DRM_ERROR("No UMS support in radeon module!\n");
639 		return -EINVAL;
640 	}
641 
642 	return pci_register_driver(pdriver);
643 }
644 
645 static void __exit radeon_exit(void)
646 {
647 	pci_unregister_driver(pdriver);
648 	radeon_unregister_atpx_handler();
649 }
650 
651 module_init(radeon_init);
652 module_exit(radeon_exit);
653 
654 MODULE_AUTHOR(DRIVER_AUTHOR);
655 MODULE_DESCRIPTION(DRIVER_DESC);
656 MODULE_LICENSE("GPL and additional rights");
657