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 #include <drm/drmP.h>
33 #include <drm/radeon_drm.h>
34 #include "radeon_drv.h"
35 
36 #include <drm/drm_pciids.h>
37 #include <linux/console.h>
38 #include <linux/module.h>
39 #include <linux/pm_runtime.h>
40 #include <linux/vga_switcheroo.h>
41 #include "drm_crtc_helper.h"
42 /*
43  * KMS wrapper.
44  * - 2.0.0 - initial interface
45  * - 2.1.0 - add square tiling interface
46  * - 2.2.0 - add r6xx/r7xx const buffer support
47  * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs
48  * - 2.4.0 - add crtc id query
49  * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen
50  * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500)
51  *   2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs
52  *   2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query
53  *   2.9.0 - r600 tiling (s3tc,rgtc) working, SET_PREDICATION packet 3 on r600 + eg, backend query
54  *   2.10.0 - fusion 2D tiling
55  *   2.11.0 - backend map, initial compute support for the CS checker
56  *   2.12.0 - RADEON_CS_KEEP_TILING_FLAGS
57  *   2.13.0 - virtual memory support, streamout
58  *   2.14.0 - add evergreen tiling informations
59  *   2.15.0 - add max_pipes query
60  *   2.16.0 - fix evergreen 2D tiled surface calculation
61  *   2.17.0 - add STRMOUT_BASE_UPDATE for r7xx
62  *   2.18.0 - r600-eg: allow "invalid" DB formats
63  *   2.19.0 - r600-eg: MSAA textures
64  *   2.20.0 - r600-si: RADEON_INFO_TIMESTAMP query
65  *   2.21.0 - r600-r700: FMASK and CMASK
66  *   2.22.0 - r600 only: RESOLVE_BOX allowed
67  *   2.23.0 - allow STRMOUT_BASE_UPDATE on RS780 and RS880
68  *   2.24.0 - eg only: allow MIP_ADDRESS=0 for MSAA textures
69  *   2.25.0 - eg+: new info request for num SE and num SH
70  *   2.26.0 - r600-eg: fix htile size computation
71  *   2.27.0 - r600-SI: Add CS ioctl support for async DMA
72  *   2.28.0 - r600-eg: Add MEM_WRITE packet support
73  *   2.29.0 - R500 FP16 color clear registers
74  *   2.30.0 - fix for FMASK texturing
75  *   2.31.0 - Add fastfb support for rs690
76  *   2.32.0 - new info request for rings working
77  *   2.33.0 - Add SI tiling mode array query
78  *   2.34.0 - Add CIK tiling mode array query
79  *   2.35.0 - Add CIK macrotile mode array query
80  *   2.36.0 - Fix CIK DCE tiling setup
81  *   2.37.0 - allow GS ring setup on r6xx/r7xx
82  */
83 #define KMS_DRIVER_MAJOR	2
84 #define KMS_DRIVER_MINOR	37
85 #define KMS_DRIVER_PATCHLEVEL	0
86 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
87 int radeon_driver_unload_kms(struct drm_device *dev);
88 void radeon_driver_lastclose_kms(struct drm_device *dev);
89 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv);
90 void radeon_driver_postclose_kms(struct drm_device *dev,
91 				 struct drm_file *file_priv);
92 void radeon_driver_preclose_kms(struct drm_device *dev,
93 				struct drm_file *file_priv);
94 int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon);
95 int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon);
96 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc);
97 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc);
98 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc);
99 int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
100 				    int *max_error,
101 				    struct timeval *vblank_time,
102 				    unsigned flags);
103 void radeon_driver_irq_preinstall_kms(struct drm_device *dev);
104 int radeon_driver_irq_postinstall_kms(struct drm_device *dev);
105 void radeon_driver_irq_uninstall_kms(struct drm_device *dev);
106 irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg);
107 void radeon_gem_object_free(struct drm_gem_object *obj);
108 int radeon_gem_object_open(struct drm_gem_object *obj,
109 				struct drm_file *file_priv);
110 void radeon_gem_object_close(struct drm_gem_object *obj,
111 				struct drm_file *file_priv);
112 extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc,
113 				      unsigned int flags,
114 				      int *vpos, int *hpos, ktime_t *stime,
115 				      ktime_t *etime);
116 extern const struct drm_ioctl_desc radeon_ioctls_kms[];
117 extern int radeon_max_kms_ioctl;
118 int radeon_mmap(struct file *filp, struct vm_area_struct *vma);
119 int radeon_mode_dumb_mmap(struct drm_file *filp,
120 			  struct drm_device *dev,
121 			  uint32_t handle, uint64_t *offset_p);
122 int radeon_mode_dumb_create(struct drm_file *file_priv,
123 			    struct drm_device *dev,
124 			    struct drm_mode_create_dumb *args);
125 struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj);
126 struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev,
127 							size_t size,
128 							struct sg_table *sg);
129 int radeon_gem_prime_pin(struct drm_gem_object *obj);
130 void radeon_gem_prime_unpin(struct drm_gem_object *obj);
131 void *radeon_gem_prime_vmap(struct drm_gem_object *obj);
132 void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
133 extern long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd,
134 				    unsigned long arg);
135 
136 #if defined(CONFIG_DEBUG_FS)
137 int radeon_debugfs_init(struct drm_minor *minor);
138 void radeon_debugfs_cleanup(struct drm_minor *minor);
139 #endif
140 
141 /* atpx handler */
142 #if defined(CONFIG_VGA_SWITCHEROO)
143 void radeon_register_atpx_handler(void);
144 void radeon_unregister_atpx_handler(void);
145 bool radeon_is_px(void);
146 #else
147 static inline void radeon_register_atpx_handler(void) {}
148 static inline void radeon_unregister_atpx_handler(void) {}
149 static inline bool radeon_is_px(void) { return false; }
150 #endif
151 
152 int radeon_no_wb;
153 int radeon_modeset = -1;
154 int radeon_dynclks = -1;
155 int radeon_r4xx_atom = 0;
156 int radeon_agpmode = 0;
157 int radeon_vram_limit = 0;
158 int radeon_gart_size = -1; /* auto */
159 int radeon_benchmarking = 0;
160 int radeon_testing = 0;
161 int radeon_connector_table = 0;
162 int radeon_tv = 1;
163 int radeon_audio = -1;
164 int radeon_disp_priority = 0;
165 int radeon_hw_i2c = 0;
166 int radeon_pcie_gen2 = -1;
167 int radeon_msi = -1;
168 int radeon_lockup_timeout = 10000;
169 int radeon_fastfb = 0;
170 int radeon_dpm = -1;
171 int radeon_aspm = -1;
172 int radeon_runtime_pm = -1;
173 int radeon_hard_reset = 0;
174 
175 MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
176 module_param_named(no_wb, radeon_no_wb, int, 0444);
177 
178 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
179 module_param_named(modeset, radeon_modeset, int, 0400);
180 
181 MODULE_PARM_DESC(dynclks, "Disable/Enable dynamic clocks");
182 module_param_named(dynclks, radeon_dynclks, int, 0444);
183 
184 MODULE_PARM_DESC(r4xx_atom, "Enable ATOMBIOS modesetting for R4xx");
185 module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
186 
187 MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing");
188 module_param_named(vramlimit, radeon_vram_limit, int, 0600);
189 
190 MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
191 module_param_named(agpmode, radeon_agpmode, int, 0444);
192 
193 MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
194 module_param_named(gartsize, radeon_gart_size, int, 0600);
195 
196 MODULE_PARM_DESC(benchmark, "Run benchmark");
197 module_param_named(benchmark, radeon_benchmarking, int, 0444);
198 
199 MODULE_PARM_DESC(test, "Run tests");
200 module_param_named(test, radeon_testing, int, 0444);
201 
202 MODULE_PARM_DESC(connector_table, "Force connector table");
203 module_param_named(connector_table, radeon_connector_table, int, 0444);
204 
205 MODULE_PARM_DESC(tv, "TV enable (0 = disable)");
206 module_param_named(tv, radeon_tv, int, 0444);
207 
208 MODULE_PARM_DESC(audio, "Audio enable (-1 = auto, 0 = disable, 1 = enable)");
209 module_param_named(audio, radeon_audio, int, 0444);
210 
211 MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
212 module_param_named(disp_priority, radeon_disp_priority, int, 0444);
213 
214 MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)");
215 module_param_named(hw_i2c, radeon_hw_i2c, int, 0444);
216 
217 MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable)");
218 module_param_named(pcie_gen2, radeon_pcie_gen2, int, 0444);
219 
220 MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)");
221 module_param_named(msi, radeon_msi, int, 0444);
222 
223 MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (defaul 10000 = 10 seconds, 0 = disable)");
224 module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);
225 
226 MODULE_PARM_DESC(fastfb, "Direct FB access for IGP chips (0 = disable, 1 = enable)");
227 module_param_named(fastfb, radeon_fastfb, int, 0444);
228 
229 MODULE_PARM_DESC(dpm, "DPM support (1 = enable, 0 = disable, -1 = auto)");
230 module_param_named(dpm, radeon_dpm, int, 0444);
231 
232 MODULE_PARM_DESC(aspm, "ASPM support (1 = enable, 0 = disable, -1 = auto)");
233 module_param_named(aspm, radeon_aspm, int, 0444);
234 
235 MODULE_PARM_DESC(runpm, "PX runtime pm (1 = force enable, 0 = disable, -1 = PX only default)");
236 module_param_named(runpm, radeon_runtime_pm, int, 0444);
237 
238 MODULE_PARM_DESC(hard_reset, "PCI config reset (1 = force enable, 0 = disable (default))");
239 module_param_named(hard_reset, radeon_hard_reset, int, 0444);
240 
241 static struct pci_device_id pciidlist[] = {
242 	radeon_PCI_IDS
243 };
244 
245 MODULE_DEVICE_TABLE(pci, pciidlist);
246 
247 #ifdef CONFIG_DRM_RADEON_UMS
248 
249 static int radeon_suspend(struct drm_device *dev, pm_message_t state)
250 {
251 	drm_radeon_private_t *dev_priv = dev->dev_private;
252 
253 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
254 		return 0;
255 
256 	/* Disable *all* interrupts */
257 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
258 		RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
259 	RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
260 	return 0;
261 }
262 
263 static int radeon_resume(struct drm_device *dev)
264 {
265 	drm_radeon_private_t *dev_priv = dev->dev_private;
266 
267 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
268 		return 0;
269 
270 	/* Restore interrupt registers */
271 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
272 		RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
273 	RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
274 	return 0;
275 }
276 
277 
278 static const struct file_operations radeon_driver_old_fops = {
279 	.owner = THIS_MODULE,
280 	.open = drm_open,
281 	.release = drm_release,
282 	.unlocked_ioctl = drm_ioctl,
283 	.mmap = drm_mmap,
284 	.poll = drm_poll,
285 	.read = drm_read,
286 #ifdef CONFIG_COMPAT
287 	.compat_ioctl = radeon_compat_ioctl,
288 #endif
289 	.llseek = noop_llseek,
290 };
291 
292 static struct drm_driver driver_old = {
293 	.driver_features =
294 	    DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG |
295 	    DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED,
296 	.dev_priv_size = sizeof(drm_radeon_buf_priv_t),
297 	.load = radeon_driver_load,
298 	.firstopen = radeon_driver_firstopen,
299 	.open = radeon_driver_open,
300 	.preclose = radeon_driver_preclose,
301 	.postclose = radeon_driver_postclose,
302 	.lastclose = radeon_driver_lastclose,
303 	.unload = radeon_driver_unload,
304 	.suspend = radeon_suspend,
305 	.resume = radeon_resume,
306 	.get_vblank_counter = radeon_get_vblank_counter,
307 	.enable_vblank = radeon_enable_vblank,
308 	.disable_vblank = radeon_disable_vblank,
309 	.master_create = radeon_master_create,
310 	.master_destroy = radeon_master_destroy,
311 	.irq_preinstall = radeon_driver_irq_preinstall,
312 	.irq_postinstall = radeon_driver_irq_postinstall,
313 	.irq_uninstall = radeon_driver_irq_uninstall,
314 	.irq_handler = radeon_driver_irq_handler,
315 	.ioctls = radeon_ioctls,
316 	.dma_ioctl = radeon_cp_buffers,
317 	.fops = &radeon_driver_old_fops,
318 	.name = DRIVER_NAME,
319 	.desc = DRIVER_DESC,
320 	.date = DRIVER_DATE,
321 	.major = DRIVER_MAJOR,
322 	.minor = DRIVER_MINOR,
323 	.patchlevel = DRIVER_PATCHLEVEL,
324 };
325 
326 #endif
327 
328 static struct drm_driver kms_driver;
329 
330 static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
331 {
332 	struct apertures_struct *ap;
333 	bool primary = false;
334 
335 	ap = alloc_apertures(1);
336 	if (!ap)
337 		return -ENOMEM;
338 
339 	ap->ranges[0].base = pci_resource_start(pdev, 0);
340 	ap->ranges[0].size = pci_resource_len(pdev, 0);
341 
342 #ifdef CONFIG_X86
343 	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
344 #endif
345 	remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
346 	kfree(ap);
347 
348 	return 0;
349 }
350 
351 static int radeon_pci_probe(struct pci_dev *pdev,
352 			    const struct pci_device_id *ent)
353 {
354 	int ret;
355 
356 	/* Get rid of things like offb */
357 	ret = radeon_kick_out_firmware_fb(pdev);
358 	if (ret)
359 		return ret;
360 
361 	return drm_get_pci_dev(pdev, ent, &kms_driver);
362 }
363 
364 static void
365 radeon_pci_remove(struct pci_dev *pdev)
366 {
367 	struct drm_device *dev = pci_get_drvdata(pdev);
368 
369 	drm_put_dev(dev);
370 }
371 
372 static int radeon_pmops_suspend(struct device *dev)
373 {
374 	struct pci_dev *pdev = to_pci_dev(dev);
375 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
376 	return radeon_suspend_kms(drm_dev, true, true);
377 }
378 
379 static int radeon_pmops_resume(struct device *dev)
380 {
381 	struct pci_dev *pdev = to_pci_dev(dev);
382 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
383 	return radeon_resume_kms(drm_dev, true, true);
384 }
385 
386 static int radeon_pmops_freeze(struct device *dev)
387 {
388 	struct pci_dev *pdev = to_pci_dev(dev);
389 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
390 	return radeon_suspend_kms(drm_dev, false, true);
391 }
392 
393 static int radeon_pmops_thaw(struct device *dev)
394 {
395 	struct pci_dev *pdev = to_pci_dev(dev);
396 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
397 	return radeon_resume_kms(drm_dev, false, true);
398 }
399 
400 static int radeon_pmops_runtime_suspend(struct device *dev)
401 {
402 	struct pci_dev *pdev = to_pci_dev(dev);
403 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
404 	int ret;
405 
406 	if (radeon_runtime_pm == 0)
407 		return -EINVAL;
408 
409 	if (radeon_runtime_pm == -1 && !radeon_is_px())
410 		return -EINVAL;
411 
412 	drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
413 	drm_kms_helper_poll_disable(drm_dev);
414 	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
415 
416 	ret = radeon_suspend_kms(drm_dev, false, false);
417 	pci_save_state(pdev);
418 	pci_disable_device(pdev);
419 	pci_set_power_state(pdev, PCI_D3cold);
420 	drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
421 
422 	return 0;
423 }
424 
425 static int radeon_pmops_runtime_resume(struct device *dev)
426 {
427 	struct pci_dev *pdev = to_pci_dev(dev);
428 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
429 	int ret;
430 
431 	if (radeon_runtime_pm == 0)
432 		return -EINVAL;
433 
434 	if (radeon_runtime_pm == -1 && !radeon_is_px())
435 		return -EINVAL;
436 
437 	drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
438 
439 	pci_set_power_state(pdev, PCI_D0);
440 	pci_restore_state(pdev);
441 	ret = pci_enable_device(pdev);
442 	if (ret)
443 		return ret;
444 	pci_set_master(pdev);
445 
446 	ret = radeon_resume_kms(drm_dev, false, false);
447 	drm_kms_helper_poll_enable(drm_dev);
448 	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
449 	drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
450 	return 0;
451 }
452 
453 static int radeon_pmops_runtime_idle(struct device *dev)
454 {
455 	struct pci_dev *pdev = to_pci_dev(dev);
456 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
457 	struct drm_crtc *crtc;
458 
459 	if (radeon_runtime_pm == 0)
460 		return -EBUSY;
461 
462 	/* are we PX enabled? */
463 	if (radeon_runtime_pm == -1 && !radeon_is_px()) {
464 		DRM_DEBUG_DRIVER("failing to power off - not px\n");
465 		return -EBUSY;
466 	}
467 
468 	list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) {
469 		if (crtc->enabled) {
470 			DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
471 			return -EBUSY;
472 		}
473 	}
474 
475 	pm_runtime_mark_last_busy(dev);
476 	pm_runtime_autosuspend(dev);
477 	/* we don't want the main rpm_idle to call suspend - we want to autosuspend */
478 	return 1;
479 }
480 
481 long radeon_drm_ioctl(struct file *filp,
482 		      unsigned int cmd, unsigned long arg)
483 {
484 	struct drm_file *file_priv = filp->private_data;
485 	struct drm_device *dev;
486 	long ret;
487 	dev = file_priv->minor->dev;
488 	ret = pm_runtime_get_sync(dev->dev);
489 	if (ret < 0)
490 		return ret;
491 
492 	ret = drm_ioctl(filp, cmd, arg);
493 
494 	pm_runtime_mark_last_busy(dev->dev);
495 	pm_runtime_put_autosuspend(dev->dev);
496 	return ret;
497 }
498 
499 static const struct dev_pm_ops radeon_pm_ops = {
500 	.suspend = radeon_pmops_suspend,
501 	.resume = radeon_pmops_resume,
502 	.freeze = radeon_pmops_freeze,
503 	.thaw = radeon_pmops_thaw,
504 	.poweroff = radeon_pmops_freeze,
505 	.restore = radeon_pmops_resume,
506 	.runtime_suspend = radeon_pmops_runtime_suspend,
507 	.runtime_resume = radeon_pmops_runtime_resume,
508 	.runtime_idle = radeon_pmops_runtime_idle,
509 };
510 
511 static const struct file_operations radeon_driver_kms_fops = {
512 	.owner = THIS_MODULE,
513 	.open = drm_open,
514 	.release = drm_release,
515 	.unlocked_ioctl = radeon_drm_ioctl,
516 	.mmap = radeon_mmap,
517 	.poll = drm_poll,
518 	.read = drm_read,
519 #ifdef CONFIG_COMPAT
520 	.compat_ioctl = radeon_kms_compat_ioctl,
521 #endif
522 };
523 
524 static struct drm_driver kms_driver = {
525 	.driver_features =
526 	    DRIVER_USE_AGP |
527 	    DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM |
528 	    DRIVER_PRIME | DRIVER_RENDER,
529 	.dev_priv_size = 0,
530 	.load = radeon_driver_load_kms,
531 	.open = radeon_driver_open_kms,
532 	.preclose = radeon_driver_preclose_kms,
533 	.postclose = radeon_driver_postclose_kms,
534 	.lastclose = radeon_driver_lastclose_kms,
535 	.unload = radeon_driver_unload_kms,
536 	.get_vblank_counter = radeon_get_vblank_counter_kms,
537 	.enable_vblank = radeon_enable_vblank_kms,
538 	.disable_vblank = radeon_disable_vblank_kms,
539 	.get_vblank_timestamp = radeon_get_vblank_timestamp_kms,
540 	.get_scanout_position = radeon_get_crtc_scanoutpos,
541 #if defined(CONFIG_DEBUG_FS)
542 	.debugfs_init = radeon_debugfs_init,
543 	.debugfs_cleanup = radeon_debugfs_cleanup,
544 #endif
545 	.irq_preinstall = radeon_driver_irq_preinstall_kms,
546 	.irq_postinstall = radeon_driver_irq_postinstall_kms,
547 	.irq_uninstall = radeon_driver_irq_uninstall_kms,
548 	.irq_handler = radeon_driver_irq_handler_kms,
549 	.ioctls = radeon_ioctls_kms,
550 	.gem_free_object = radeon_gem_object_free,
551 	.gem_open_object = radeon_gem_object_open,
552 	.gem_close_object = radeon_gem_object_close,
553 	.dumb_create = radeon_mode_dumb_create,
554 	.dumb_map_offset = radeon_mode_dumb_mmap,
555 	.dumb_destroy = drm_gem_dumb_destroy,
556 	.fops = &radeon_driver_kms_fops,
557 
558 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
559 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
560 	.gem_prime_export = drm_gem_prime_export,
561 	.gem_prime_import = drm_gem_prime_import,
562 	.gem_prime_pin = radeon_gem_prime_pin,
563 	.gem_prime_unpin = radeon_gem_prime_unpin,
564 	.gem_prime_get_sg_table = radeon_gem_prime_get_sg_table,
565 	.gem_prime_import_sg_table = radeon_gem_prime_import_sg_table,
566 	.gem_prime_vmap = radeon_gem_prime_vmap,
567 	.gem_prime_vunmap = radeon_gem_prime_vunmap,
568 
569 	.name = DRIVER_NAME,
570 	.desc = DRIVER_DESC,
571 	.date = DRIVER_DATE,
572 	.major = KMS_DRIVER_MAJOR,
573 	.minor = KMS_DRIVER_MINOR,
574 	.patchlevel = KMS_DRIVER_PATCHLEVEL,
575 };
576 
577 static struct drm_driver *driver;
578 static struct pci_driver *pdriver;
579 
580 #ifdef CONFIG_DRM_RADEON_UMS
581 static struct pci_driver radeon_pci_driver = {
582 	.name = DRIVER_NAME,
583 	.id_table = pciidlist,
584 };
585 #endif
586 
587 static struct pci_driver radeon_kms_pci_driver = {
588 	.name = DRIVER_NAME,
589 	.id_table = pciidlist,
590 	.probe = radeon_pci_probe,
591 	.remove = radeon_pci_remove,
592 	.driver.pm = &radeon_pm_ops,
593 };
594 
595 static int __init radeon_init(void)
596 {
597 #ifdef CONFIG_VGA_CONSOLE
598 	if (vgacon_text_force() && radeon_modeset == -1) {
599 		DRM_INFO("VGACON disable radeon kernel modesetting.\n");
600 		radeon_modeset = 0;
601 	}
602 #endif
603 	/* set to modesetting by default if not nomodeset */
604 	if (radeon_modeset == -1)
605 		radeon_modeset = 1;
606 
607 	if (radeon_modeset == 1) {
608 		DRM_INFO("radeon kernel modesetting enabled.\n");
609 		driver = &kms_driver;
610 		pdriver = &radeon_kms_pci_driver;
611 		driver->driver_features |= DRIVER_MODESET;
612 		driver->num_ioctls = radeon_max_kms_ioctl;
613 		radeon_register_atpx_handler();
614 
615 	} else {
616 #ifdef CONFIG_DRM_RADEON_UMS
617 		DRM_INFO("radeon userspace modesetting enabled.\n");
618 		driver = &driver_old;
619 		pdriver = &radeon_pci_driver;
620 		driver->driver_features &= ~DRIVER_MODESET;
621 		driver->num_ioctls = radeon_max_ioctl;
622 #else
623 		DRM_ERROR("No UMS support in radeon module!\n");
624 		return -EINVAL;
625 #endif
626 	}
627 
628 	/* let modprobe override vga console setting */
629 	return drm_pci_init(driver, pdriver);
630 }
631 
632 static void __exit radeon_exit(void)
633 {
634 	drm_pci_exit(driver, pdriver);
635 	radeon_unregister_atpx_handler();
636 }
637 
638 module_init(radeon_init);
639 module_exit(radeon_exit);
640 
641 MODULE_AUTHOR(DRIVER_AUTHOR);
642 MODULE_DESCRIPTION(DRIVER_DESC);
643 MODULE_LICENSE("GPL and additional rights");
644