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 #include <linux/mmu_notifier.h>
39 #include <linux/pci.h>
40 
41 #include <drm/drm_agpsupport.h>
42 #include <drm/drm_crtc_helper.h>
43 #include <drm/drm_drv.h>
44 #include <drm/drm_fb_helper.h>
45 #include <drm/drm_file.h>
46 #include <drm/drm_gem.h>
47 #include <drm/drm_ioctl.h>
48 #include <drm/drm_pciids.h>
49 #include <drm/drm_probe_helper.h>
50 #include <drm/drm_vblank.h>
51 #include <drm/radeon_drm.h>
52 
53 #include "radeon_drv.h"
54 #include "radeon.h"
55 #include "radeon_kms.h"
56 #include "radeon_ttm.h"
57 #include "radeon_device.h"
58 #include "radeon_prime.h"
59 
60 /*
61  * KMS wrapper.
62  * - 2.0.0 - initial interface
63  * - 2.1.0 - add square tiling interface
64  * - 2.2.0 - add r6xx/r7xx const buffer support
65  * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs
66  * - 2.4.0 - add crtc id query
67  * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen
68  * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500)
69  *   2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs
70  *   2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query
71  *   2.9.0 - r600 tiling (s3tc,rgtc) working, SET_PREDICATION packet 3 on r600 + eg, backend query
72  *   2.10.0 - fusion 2D tiling
73  *   2.11.0 - backend map, initial compute support for the CS checker
74  *   2.12.0 - RADEON_CS_KEEP_TILING_FLAGS
75  *   2.13.0 - virtual memory support, streamout
76  *   2.14.0 - add evergreen tiling informations
77  *   2.15.0 - add max_pipes query
78  *   2.16.0 - fix evergreen 2D tiled surface calculation
79  *   2.17.0 - add STRMOUT_BASE_UPDATE for r7xx
80  *   2.18.0 - r600-eg: allow "invalid" DB formats
81  *   2.19.0 - r600-eg: MSAA textures
82  *   2.20.0 - r600-si: RADEON_INFO_TIMESTAMP query
83  *   2.21.0 - r600-r700: FMASK and CMASK
84  *   2.22.0 - r600 only: RESOLVE_BOX allowed
85  *   2.23.0 - allow STRMOUT_BASE_UPDATE on RS780 and RS880
86  *   2.24.0 - eg only: allow MIP_ADDRESS=0 for MSAA textures
87  *   2.25.0 - eg+: new info request for num SE and num SH
88  *   2.26.0 - r600-eg: fix htile size computation
89  *   2.27.0 - r600-SI: Add CS ioctl support for async DMA
90  *   2.28.0 - r600-eg: Add MEM_WRITE packet support
91  *   2.29.0 - R500 FP16 color clear registers
92  *   2.30.0 - fix for FMASK texturing
93  *   2.31.0 - Add fastfb support for rs690
94  *   2.32.0 - new info request for rings working
95  *   2.33.0 - Add SI tiling mode array query
96  *   2.34.0 - Add CIK tiling mode array query
97  *   2.35.0 - Add CIK macrotile mode array query
98  *   2.36.0 - Fix CIK DCE tiling setup
99  *   2.37.0 - allow GS ring setup on r6xx/r7xx
100  *   2.38.0 - RADEON_GEM_OP (GET_INITIAL_DOMAIN, SET_INITIAL_DOMAIN),
101  *            CIK: 1D and linear tiling modes contain valid PIPE_CONFIG
102  *   2.39.0 - Add INFO query for number of active CUs
103  *   2.40.0 - Add RADEON_GEM_GTT_WC/UC, flush HDP cache before submitting
104  *            CS to GPU on >= r600
105  *   2.41.0 - evergreen/cayman: Add SET_BASE/DRAW_INDIRECT command parsing support
106  *   2.42.0 - Add VCE/VUI (Video Usability Information) support
107  *   2.43.0 - RADEON_INFO_GPU_RESET_COUNTER
108  *   2.44.0 - SET_APPEND_CNT packet3 support
109  *   2.45.0 - Allow setting shader registers using DMA/COPY packet3 on SI
110  *   2.46.0 - Add PFP_SYNC_ME support on evergreen
111  *   2.47.0 - Add UVD_NO_OP register support
112  *   2.48.0 - TA_CS_BC_BASE_ADDR allowed on SI
113  *   2.49.0 - DRM_RADEON_GEM_INFO ioctl returns correct vram_size/visible values
114  *   2.50.0 - Allows unaligned shader loads on CIK. (needed by OpenGL)
115  */
116 #define KMS_DRIVER_MAJOR	2
117 #define KMS_DRIVER_MINOR	50
118 #define KMS_DRIVER_PATCHLEVEL	0
119 int radeon_suspend_kms(struct drm_device *dev, bool suspend,
120 		       bool fbcon, bool freeze);
121 int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon);
122 extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, unsigned int crtc,
123 				      unsigned int flags, int *vpos, int *hpos,
124 				      ktime_t *stime, ktime_t *etime,
125 				      const struct drm_display_mode *mode);
126 extern bool radeon_is_px(struct drm_device *dev);
127 int radeon_mode_dumb_mmap(struct drm_file *filp,
128 			  struct drm_device *dev,
129 			  uint32_t handle, uint64_t *offset_p);
130 int radeon_mode_dumb_create(struct drm_file *file_priv,
131 			    struct drm_device *dev,
132 			    struct drm_mode_create_dumb *args);
133 
134 /* atpx handler */
135 #if defined(CONFIG_VGA_SWITCHEROO)
136 void radeon_register_atpx_handler(void);
137 void radeon_unregister_atpx_handler(void);
138 bool radeon_has_atpx_dgpu_power_cntl(void);
139 bool radeon_is_atpx_hybrid(void);
140 #else
141 static inline void radeon_register_atpx_handler(void) {}
142 static inline void radeon_unregister_atpx_handler(void) {}
143 static inline bool radeon_has_atpx_dgpu_power_cntl(void) { return false; }
144 static inline bool radeon_is_atpx_hybrid(void) { return false; }
145 #endif
146 
147 int radeon_no_wb;
148 int radeon_modeset = -1;
149 int radeon_dynclks = -1;
150 int radeon_r4xx_atom = 0;
151 int radeon_agpmode = -1;
152 int radeon_vram_limit = 0;
153 int radeon_gart_size = -1; /* auto */
154 int radeon_benchmarking = 0;
155 int radeon_testing = 0;
156 int radeon_connector_table = 0;
157 int radeon_tv = 1;
158 int radeon_audio = -1;
159 int radeon_disp_priority = 0;
160 int radeon_hw_i2c = 0;
161 int radeon_pcie_gen2 = -1;
162 int radeon_msi = -1;
163 int radeon_lockup_timeout = 10000;
164 int radeon_fastfb = 0;
165 int radeon_dpm = -1;
166 int radeon_aspm = -1;
167 int radeon_runtime_pm = -1;
168 int radeon_hard_reset = 0;
169 int radeon_vm_size = 8;
170 int radeon_vm_block_size = -1;
171 int radeon_deep_color = 0;
172 int radeon_use_pflipirq = 2;
173 int radeon_bapm = -1;
174 int radeon_backlight = -1;
175 int radeon_auxch = -1;
176 int radeon_mst = 0;
177 int radeon_uvd = 1;
178 int radeon_vce = 1;
179 
180 MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
181 module_param_named(no_wb, radeon_no_wb, int, 0444);
182 
183 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
184 module_param_named(modeset, radeon_modeset, int, 0400);
185 
186 MODULE_PARM_DESC(dynclks, "Disable/Enable dynamic clocks");
187 module_param_named(dynclks, radeon_dynclks, int, 0444);
188 
189 MODULE_PARM_DESC(r4xx_atom, "Enable ATOMBIOS modesetting for R4xx");
190 module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
191 
192 MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
193 module_param_named(vramlimit, radeon_vram_limit, int, 0600);
194 
195 MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
196 module_param_named(agpmode, radeon_agpmode, int, 0444);
197 
198 MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
199 module_param_named(gartsize, radeon_gart_size, int, 0600);
200 
201 MODULE_PARM_DESC(benchmark, "Run benchmark");
202 module_param_named(benchmark, radeon_benchmarking, int, 0444);
203 
204 MODULE_PARM_DESC(test, "Run tests");
205 module_param_named(test, radeon_testing, int, 0444);
206 
207 MODULE_PARM_DESC(connector_table, "Force connector table");
208 module_param_named(connector_table, radeon_connector_table, int, 0444);
209 
210 MODULE_PARM_DESC(tv, "TV enable (0 = disable)");
211 module_param_named(tv, radeon_tv, int, 0444);
212 
213 MODULE_PARM_DESC(audio, "Audio enable (-1 = auto, 0 = disable, 1 = enable)");
214 module_param_named(audio, radeon_audio, int, 0444);
215 
216 MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
217 module_param_named(disp_priority, radeon_disp_priority, int, 0444);
218 
219 MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)");
220 module_param_named(hw_i2c, radeon_hw_i2c, int, 0444);
221 
222 MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable)");
223 module_param_named(pcie_gen2, radeon_pcie_gen2, int, 0444);
224 
225 MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)");
226 module_param_named(msi, radeon_msi, int, 0444);
227 
228 MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (default 10000 = 10 seconds, 0 = disable)");
229 module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);
230 
231 MODULE_PARM_DESC(fastfb, "Direct FB access for IGP chips (0 = disable, 1 = enable)");
232 module_param_named(fastfb, radeon_fastfb, int, 0444);
233 
234 MODULE_PARM_DESC(dpm, "DPM support (1 = enable, 0 = disable, -1 = auto)");
235 module_param_named(dpm, radeon_dpm, int, 0444);
236 
237 MODULE_PARM_DESC(aspm, "ASPM support (1 = enable, 0 = disable, -1 = auto)");
238 module_param_named(aspm, radeon_aspm, int, 0444);
239 
240 MODULE_PARM_DESC(runpm, "PX runtime pm (1 = force enable, 0 = disable, -1 = PX only default)");
241 module_param_named(runpm, radeon_runtime_pm, int, 0444);
242 
243 MODULE_PARM_DESC(hard_reset, "PCI config reset (1 = force enable, 0 = disable (default))");
244 module_param_named(hard_reset, radeon_hard_reset, int, 0444);
245 
246 MODULE_PARM_DESC(vm_size, "VM address space size in gigabytes (default 4GB)");
247 module_param_named(vm_size, radeon_vm_size, int, 0444);
248 
249 MODULE_PARM_DESC(vm_block_size, "VM page table size in bits (default depending on vm_size)");
250 module_param_named(vm_block_size, radeon_vm_block_size, int, 0444);
251 
252 MODULE_PARM_DESC(deep_color, "Deep Color support (1 = enable, 0 = disable (default))");
253 module_param_named(deep_color, radeon_deep_color, int, 0444);
254 
255 MODULE_PARM_DESC(use_pflipirq, "Pflip irqs for pageflip completion (0 = disable, 1 = as fallback, 2 = exclusive (default))");
256 module_param_named(use_pflipirq, radeon_use_pflipirq, int, 0444);
257 
258 MODULE_PARM_DESC(bapm, "BAPM support (1 = enable, 0 = disable, -1 = auto)");
259 module_param_named(bapm, radeon_bapm, int, 0444);
260 
261 MODULE_PARM_DESC(backlight, "backlight support (1 = enable, 0 = disable, -1 = auto)");
262 module_param_named(backlight, radeon_backlight, int, 0444);
263 
264 MODULE_PARM_DESC(auxch, "Use native auxch experimental support (1 = enable, 0 = disable, -1 = auto)");
265 module_param_named(auxch, radeon_auxch, int, 0444);
266 
267 MODULE_PARM_DESC(mst, "DisplayPort MST experimental support (1 = enable, 0 = disable)");
268 module_param_named(mst, radeon_mst, int, 0444);
269 
270 MODULE_PARM_DESC(uvd, "uvd enable/disable uvd support (1 = enable, 0 = disable)");
271 module_param_named(uvd, radeon_uvd, int, 0444);
272 
273 MODULE_PARM_DESC(vce, "vce enable/disable vce support (1 = enable, 0 = disable)");
274 module_param_named(vce, radeon_vce, int, 0444);
275 
276 int radeon_si_support = 1;
277 MODULE_PARM_DESC(si_support, "SI support (1 = enabled (default), 0 = disabled)");
278 module_param_named(si_support, radeon_si_support, int, 0444);
279 
280 int radeon_cik_support = 1;
281 MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled (default), 0 = disabled)");
282 module_param_named(cik_support, radeon_cik_support, int, 0444);
283 
284 static struct pci_device_id pciidlist[] = {
285 	radeon_PCI_IDS
286 };
287 
288 MODULE_DEVICE_TABLE(pci, pciidlist);
289 
290 static const struct drm_driver kms_driver;
291 
292 static int radeon_pci_probe(struct pci_dev *pdev,
293 			    const struct pci_device_id *ent)
294 {
295 	unsigned long flags = 0;
296 	struct drm_device *dev;
297 	int ret;
298 
299 	if (!ent)
300 		return -ENODEV; /* Avoid NULL-ptr deref in drm_get_pci_dev */
301 
302 	flags = ent->driver_data;
303 
304 	if (!radeon_si_support) {
305 		switch (flags & RADEON_FAMILY_MASK) {
306 		case CHIP_TAHITI:
307 		case CHIP_PITCAIRN:
308 		case CHIP_VERDE:
309 		case CHIP_OLAND:
310 		case CHIP_HAINAN:
311 			dev_info(&pdev->dev,
312 				 "SI support disabled by module param\n");
313 			return -ENODEV;
314 		}
315 	}
316 	if (!radeon_cik_support) {
317 		switch (flags & RADEON_FAMILY_MASK) {
318 		case CHIP_KAVERI:
319 		case CHIP_BONAIRE:
320 		case CHIP_HAWAII:
321 		case CHIP_KABINI:
322 		case CHIP_MULLINS:
323 			dev_info(&pdev->dev,
324 				 "CIK support disabled by module param\n");
325 			return -ENODEV;
326 		}
327 	}
328 
329 	if (vga_switcheroo_client_probe_defer(pdev))
330 		return -EPROBE_DEFER;
331 
332 	/* Get rid of things like offb */
333 	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "radeondrmfb");
334 	if (ret)
335 		return ret;
336 
337 	dev = drm_dev_alloc(&kms_driver, &pdev->dev);
338 	if (IS_ERR(dev))
339 		return PTR_ERR(dev);
340 
341 	ret = pci_enable_device(pdev);
342 	if (ret)
343 		goto err_free;
344 
345 	pci_set_drvdata(pdev, dev);
346 
347 	if (pci_find_capability(pdev, PCI_CAP_ID_AGP))
348 		dev->agp = drm_agp_init(dev);
349 	if (dev->agp) {
350 		dev->agp->agp_mtrr = arch_phys_wc_add(
351 			dev->agp->agp_info.aper_base,
352 			dev->agp->agp_info.aper_size *
353 			1024 * 1024);
354 	}
355 
356 	ret = drm_dev_register(dev, ent->driver_data);
357 	if (ret)
358 		goto err_agp;
359 
360 	return 0;
361 
362 err_agp:
363 	if (dev->agp)
364 		arch_phys_wc_del(dev->agp->agp_mtrr);
365 	kfree(dev->agp);
366 	pci_disable_device(pdev);
367 err_free:
368 	drm_dev_put(dev);
369 	return ret;
370 }
371 
372 static void
373 radeon_pci_remove(struct pci_dev *pdev)
374 {
375 	struct drm_device *dev = pci_get_drvdata(pdev);
376 
377 	drm_put_dev(dev);
378 }
379 
380 static void
381 radeon_pci_shutdown(struct pci_dev *pdev)
382 {
383 	/* if we are running in a VM, make sure the device
384 	 * torn down properly on reboot/shutdown
385 	 */
386 	if (radeon_device_is_virtual())
387 		radeon_pci_remove(pdev);
388 
389 #ifdef CONFIG_PPC64
390 	/*
391 	 * Some adapters need to be suspended before a
392 	 * shutdown occurs in order to prevent an error
393 	 * during kexec.
394 	 * Make this power specific becauase it breaks
395 	 * some non-power boards.
396 	 */
397 	radeon_suspend_kms(pci_get_drvdata(pdev), true, true, false);
398 #endif
399 }
400 
401 static int radeon_pmops_suspend(struct device *dev)
402 {
403 	struct drm_device *drm_dev = dev_get_drvdata(dev);
404 	return radeon_suspend_kms(drm_dev, true, true, false);
405 }
406 
407 static int radeon_pmops_resume(struct device *dev)
408 {
409 	struct drm_device *drm_dev = dev_get_drvdata(dev);
410 
411 	/* GPU comes up enabled by the bios on resume */
412 	if (radeon_is_px(drm_dev)) {
413 		pm_runtime_disable(dev);
414 		pm_runtime_set_active(dev);
415 		pm_runtime_enable(dev);
416 	}
417 
418 	return radeon_resume_kms(drm_dev, true, true);
419 }
420 
421 static int radeon_pmops_freeze(struct device *dev)
422 {
423 	struct drm_device *drm_dev = dev_get_drvdata(dev);
424 	return radeon_suspend_kms(drm_dev, false, true, true);
425 }
426 
427 static int radeon_pmops_thaw(struct device *dev)
428 {
429 	struct drm_device *drm_dev = dev_get_drvdata(dev);
430 	return radeon_resume_kms(drm_dev, false, true);
431 }
432 
433 static int radeon_pmops_runtime_suspend(struct device *dev)
434 {
435 	struct pci_dev *pdev = to_pci_dev(dev);
436 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
437 
438 	if (!radeon_is_px(drm_dev)) {
439 		pm_runtime_forbid(dev);
440 		return -EBUSY;
441 	}
442 
443 	drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
444 	drm_kms_helper_poll_disable(drm_dev);
445 
446 	radeon_suspend_kms(drm_dev, false, false, false);
447 	pci_save_state(pdev);
448 	pci_disable_device(pdev);
449 	pci_ignore_hotplug(pdev);
450 	if (radeon_is_atpx_hybrid())
451 		pci_set_power_state(pdev, PCI_D3cold);
452 	else if (!radeon_has_atpx_dgpu_power_cntl())
453 		pci_set_power_state(pdev, PCI_D3hot);
454 	drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
455 
456 	return 0;
457 }
458 
459 static int radeon_pmops_runtime_resume(struct device *dev)
460 {
461 	struct pci_dev *pdev = to_pci_dev(dev);
462 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
463 	int ret;
464 
465 	if (!radeon_is_px(drm_dev))
466 		return -EINVAL;
467 
468 	drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
469 
470 	if (radeon_is_atpx_hybrid() ||
471 	    !radeon_has_atpx_dgpu_power_cntl())
472 		pci_set_power_state(pdev, PCI_D0);
473 	pci_restore_state(pdev);
474 	ret = pci_enable_device(pdev);
475 	if (ret)
476 		return ret;
477 	pci_set_master(pdev);
478 
479 	ret = radeon_resume_kms(drm_dev, false, false);
480 	drm_kms_helper_poll_enable(drm_dev);
481 	drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
482 	return 0;
483 }
484 
485 static int radeon_pmops_runtime_idle(struct device *dev)
486 {
487 	struct drm_device *drm_dev = dev_get_drvdata(dev);
488 	struct drm_crtc *crtc;
489 
490 	if (!radeon_is_px(drm_dev)) {
491 		pm_runtime_forbid(dev);
492 		return -EBUSY;
493 	}
494 
495 	list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) {
496 		if (crtc->enabled) {
497 			DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
498 			return -EBUSY;
499 		}
500 	}
501 
502 	pm_runtime_mark_last_busy(dev);
503 	pm_runtime_autosuspend(dev);
504 	/* we don't want the main rpm_idle to call suspend - we want to autosuspend */
505 	return 1;
506 }
507 
508 long radeon_drm_ioctl(struct file *filp,
509 		      unsigned int cmd, unsigned long arg)
510 {
511 	struct drm_file *file_priv = filp->private_data;
512 	struct drm_device *dev;
513 	long ret;
514 	dev = file_priv->minor->dev;
515 	ret = pm_runtime_get_sync(dev->dev);
516 	if (ret < 0) {
517 		pm_runtime_put_autosuspend(dev->dev);
518 		return ret;
519 	}
520 
521 	ret = drm_ioctl(filp, cmd, arg);
522 
523 	pm_runtime_mark_last_busy(dev->dev);
524 	pm_runtime_put_autosuspend(dev->dev);
525 	return ret;
526 }
527 
528 #ifdef CONFIG_COMPAT
529 static long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
530 {
531 	unsigned int nr = DRM_IOCTL_NR(cmd);
532 	int ret;
533 
534 	if (nr < DRM_COMMAND_BASE)
535 		return drm_compat_ioctl(filp, cmd, arg);
536 
537 	ret = radeon_drm_ioctl(filp, cmd, arg);
538 
539 	return ret;
540 }
541 #endif
542 
543 static const struct dev_pm_ops radeon_pm_ops = {
544 	.suspend = radeon_pmops_suspend,
545 	.resume = radeon_pmops_resume,
546 	.freeze = radeon_pmops_freeze,
547 	.thaw = radeon_pmops_thaw,
548 	.poweroff = radeon_pmops_freeze,
549 	.restore = radeon_pmops_resume,
550 	.runtime_suspend = radeon_pmops_runtime_suspend,
551 	.runtime_resume = radeon_pmops_runtime_resume,
552 	.runtime_idle = radeon_pmops_runtime_idle,
553 };
554 
555 static const struct file_operations radeon_driver_kms_fops = {
556 	.owner = THIS_MODULE,
557 	.open = drm_open,
558 	.release = drm_release,
559 	.unlocked_ioctl = radeon_drm_ioctl,
560 	.mmap = radeon_mmap,
561 	.poll = drm_poll,
562 	.read = drm_read,
563 #ifdef CONFIG_COMPAT
564 	.compat_ioctl = radeon_kms_compat_ioctl,
565 #endif
566 };
567 
568 static const struct drm_ioctl_desc radeon_ioctls_kms[] = {
569 	DRM_IOCTL_DEF_DRV(RADEON_CP_INIT, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
570 	DRM_IOCTL_DEF_DRV(RADEON_CP_START, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
571 	DRM_IOCTL_DEF_DRV(RADEON_CP_STOP, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
572 	DRM_IOCTL_DEF_DRV(RADEON_CP_RESET, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
573 	DRM_IOCTL_DEF_DRV(RADEON_CP_IDLE, drm_invalid_op, DRM_AUTH),
574 	DRM_IOCTL_DEF_DRV(RADEON_CP_RESUME, drm_invalid_op, DRM_AUTH),
575 	DRM_IOCTL_DEF_DRV(RADEON_RESET, drm_invalid_op, DRM_AUTH),
576 	DRM_IOCTL_DEF_DRV(RADEON_FULLSCREEN, drm_invalid_op, DRM_AUTH),
577 	DRM_IOCTL_DEF_DRV(RADEON_SWAP, drm_invalid_op, DRM_AUTH),
578 	DRM_IOCTL_DEF_DRV(RADEON_CLEAR, drm_invalid_op, DRM_AUTH),
579 	DRM_IOCTL_DEF_DRV(RADEON_VERTEX, drm_invalid_op, DRM_AUTH),
580 	DRM_IOCTL_DEF_DRV(RADEON_INDICES, drm_invalid_op, DRM_AUTH),
581 	DRM_IOCTL_DEF_DRV(RADEON_TEXTURE, drm_invalid_op, DRM_AUTH),
582 	DRM_IOCTL_DEF_DRV(RADEON_STIPPLE, drm_invalid_op, DRM_AUTH),
583 	DRM_IOCTL_DEF_DRV(RADEON_INDIRECT, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
584 	DRM_IOCTL_DEF_DRV(RADEON_VERTEX2, drm_invalid_op, DRM_AUTH),
585 	DRM_IOCTL_DEF_DRV(RADEON_CMDBUF, drm_invalid_op, DRM_AUTH),
586 	DRM_IOCTL_DEF_DRV(RADEON_GETPARAM, drm_invalid_op, DRM_AUTH),
587 	DRM_IOCTL_DEF_DRV(RADEON_FLIP, drm_invalid_op, DRM_AUTH),
588 	DRM_IOCTL_DEF_DRV(RADEON_ALLOC, drm_invalid_op, DRM_AUTH),
589 	DRM_IOCTL_DEF_DRV(RADEON_FREE, drm_invalid_op, DRM_AUTH),
590 	DRM_IOCTL_DEF_DRV(RADEON_INIT_HEAP, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
591 	DRM_IOCTL_DEF_DRV(RADEON_IRQ_EMIT, drm_invalid_op, DRM_AUTH),
592 	DRM_IOCTL_DEF_DRV(RADEON_IRQ_WAIT, drm_invalid_op, DRM_AUTH),
593 	DRM_IOCTL_DEF_DRV(RADEON_SETPARAM, drm_invalid_op, DRM_AUTH),
594 	DRM_IOCTL_DEF_DRV(RADEON_SURF_ALLOC, drm_invalid_op, DRM_AUTH),
595 	DRM_IOCTL_DEF_DRV(RADEON_SURF_FREE, drm_invalid_op, DRM_AUTH),
596 	/* KMS */
597 	DRM_IOCTL_DEF_DRV(RADEON_GEM_INFO, radeon_gem_info_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
598 	DRM_IOCTL_DEF_DRV(RADEON_GEM_CREATE, radeon_gem_create_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
599 	DRM_IOCTL_DEF_DRV(RADEON_GEM_MMAP, radeon_gem_mmap_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
600 	DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_DOMAIN, radeon_gem_set_domain_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
601 	DRM_IOCTL_DEF_DRV(RADEON_GEM_PREAD, radeon_gem_pread_ioctl, DRM_AUTH),
602 	DRM_IOCTL_DEF_DRV(RADEON_GEM_PWRITE, radeon_gem_pwrite_ioctl, DRM_AUTH),
603 	DRM_IOCTL_DEF_DRV(RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
604 	DRM_IOCTL_DEF_DRV(RADEON_CS, radeon_cs_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
605 	DRM_IOCTL_DEF_DRV(RADEON_INFO, radeon_info_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
606 	DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
607 	DRM_IOCTL_DEF_DRV(RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
608 	DRM_IOCTL_DEF_DRV(RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
609 	DRM_IOCTL_DEF_DRV(RADEON_GEM_VA, radeon_gem_va_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
610 	DRM_IOCTL_DEF_DRV(RADEON_GEM_OP, radeon_gem_op_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
611 	DRM_IOCTL_DEF_DRV(RADEON_GEM_USERPTR, radeon_gem_userptr_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
612 };
613 
614 static const struct drm_driver kms_driver = {
615 	.driver_features =
616 	    DRIVER_GEM | DRIVER_RENDER | DRIVER_MODESET,
617 	.load = radeon_driver_load_kms,
618 	.open = radeon_driver_open_kms,
619 	.postclose = radeon_driver_postclose_kms,
620 	.lastclose = radeon_driver_lastclose_kms,
621 	.unload = radeon_driver_unload_kms,
622 	.irq_preinstall = radeon_driver_irq_preinstall_kms,
623 	.irq_postinstall = radeon_driver_irq_postinstall_kms,
624 	.irq_uninstall = radeon_driver_irq_uninstall_kms,
625 	.irq_handler = radeon_driver_irq_handler_kms,
626 	.ioctls = radeon_ioctls_kms,
627 	.num_ioctls = ARRAY_SIZE(radeon_ioctls_kms),
628 	.dumb_create = radeon_mode_dumb_create,
629 	.dumb_map_offset = radeon_mode_dumb_mmap,
630 	.fops = &radeon_driver_kms_fops,
631 
632 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
633 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
634 	.gem_prime_import_sg_table = radeon_gem_prime_import_sg_table,
635 
636 	.name = DRIVER_NAME,
637 	.desc = DRIVER_DESC,
638 	.date = DRIVER_DATE,
639 	.major = KMS_DRIVER_MAJOR,
640 	.minor = KMS_DRIVER_MINOR,
641 	.patchlevel = KMS_DRIVER_PATCHLEVEL,
642 };
643 
644 static struct pci_driver radeon_kms_pci_driver = {
645 	.name = DRIVER_NAME,
646 	.id_table = pciidlist,
647 	.probe = radeon_pci_probe,
648 	.remove = radeon_pci_remove,
649 	.shutdown = radeon_pci_shutdown,
650 	.driver.pm = &radeon_pm_ops,
651 };
652 
653 static int __init radeon_module_init(void)
654 {
655 	if (vgacon_text_force() && radeon_modeset == -1) {
656 		DRM_INFO("VGACON disable radeon kernel modesetting.\n");
657 		radeon_modeset = 0;
658 	}
659 
660 	if (radeon_modeset == 0) {
661 		DRM_ERROR("No UMS support in radeon module!\n");
662 		return -EINVAL;
663 	}
664 
665 	DRM_INFO("radeon kernel modesetting enabled.\n");
666 	radeon_register_atpx_handler();
667 
668 	return pci_register_driver(&radeon_kms_pci_driver);
669 }
670 
671 static void __exit radeon_module_exit(void)
672 {
673 	pci_unregister_driver(&radeon_kms_pci_driver);
674 	radeon_unregister_atpx_handler();
675 	mmu_notifier_synchronize();
676 }
677 
678 module_init(radeon_module_init);
679 module_exit(radeon_module_exit);
680 
681 MODULE_AUTHOR(DRIVER_AUTHOR);
682 MODULE_DESCRIPTION(DRIVER_DESC);
683 MODULE_LICENSE("GPL and additional rights");
684