xref: /dragonfly/sys/dev/drm/radeon/radeon_drv.c (revision ed36d35d)
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  * $FreeBSD: head/sys/dev/drm2/radeon/radeon_drv.c 254885 2013-08-25 19:37:15Z dumbbell $
32  */
33 
34 #include <drm/drmP.h>
35 #include <uapi_drm/radeon_drm.h>
36 #include "radeon_drv.h"
37 #include "radeon_gem.h"
38 #include "radeon_kms.h"
39 #include "radeon_irq_kms.h"
40 
41 #include <drm/drm_pciids.h>
42 #include <linux/module.h>
43 #ifdef PM_TODO
44 #include <linux/pm_runtime.h>
45 #include <linux/vga_switcheroo.h>
46 #endif
47 
48 #include <drm/drm_gem.h>
49 
50 #include "drm/drm_crtc_helper.h"
51 /*
52  * KMS wrapper.
53  * - 2.0.0 - initial interface
54  * - 2.1.0 - add square tiling interface
55  * - 2.2.0 - add r6xx/r7xx const buffer support
56  * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs
57  * - 2.4.0 - add crtc id query
58  * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen
59  * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500)
60  *   2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs
61  *   2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query
62  *   2.9.0 - r600 tiling (s3tc,rgtc) working, SET_PREDICATION packet 3 on r600 + eg, backend query
63  *   2.10.0 - fusion 2D tiling
64  *   2.11.0 - backend map, initial compute support for the CS checker
65  *   2.12.0 - RADEON_CS_KEEP_TILING_FLAGS
66  *   2.13.0 - virtual memory support, streamout
67  *   2.14.0 - add evergreen tiling informations
68  *   2.15.0 - add max_pipes query
69  *   2.16.0 - fix evergreen 2D tiled surface calculation
70  *   2.17.0 - add STRMOUT_BASE_UPDATE for r7xx
71  *   2.18.0 - r600-eg: allow "invalid" DB formats
72  *   2.19.0 - r600-eg: MSAA textures
73  *   2.20.0 - r600-si: RADEON_INFO_TIMESTAMP query
74  *   2.21.0 - r600-r700: FMASK and CMASK
75  *   2.22.0 - r600 only: RESOLVE_BOX allowed
76  *   2.23.0 - allow STRMOUT_BASE_UPDATE on RS780 and RS880
77  *   2.24.0 - eg only: allow MIP_ADDRESS=0 for MSAA textures
78  *   2.25.0 - eg+: new info request for num SE and num SH
79  *   2.26.0 - r600-eg: fix htile size computation
80  *   2.27.0 - r600-SI: Add CS ioctl support for async DMA
81  *   2.28.0 - r600-eg: Add MEM_WRITE packet support
82  *   2.29.0 - R500 FP16 color clear registers
83  *   2.30.0 - fix for FMASK texturing
84  *   2.31.0 - Add fastfb support for rs690
85  *   2.32.0 - new info request for rings working
86  *   2.33.0 - Add SI tiling mode array query
87  *   2.34.0 - Add CIK tiling mode array query
88  *   2.35.0 - Add CIK macrotile mode array query
89  *   2.36.0 - Fix CIK DCE tiling setup
90  *   2.37.0 - allow GS ring setup on r6xx/r7xx
91  *   2.38.0 - RADEON_GEM_OP (GET_INITIAL_DOMAIN, SET_INITIAL_DOMAIN),
92  *            CIK: 1D and linear tiling modes contain valid PIPE_CONFIG
93  *   2.39.0 - Add INFO query for number of active CUs
94  *   2.40.0 - Add RADEON_GEM_GTT_WC/UC, flush HDP cache before submitting
95  *            CS to GPU on >= r600
96  */
97 #define KMS_DRIVER_MAJOR	2
98 #define KMS_DRIVER_MINOR	40
99 #define KMS_DRIVER_PATCHLEVEL	0
100 int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon);
101 int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon);
102 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe);
103 int radeon_enable_vblank_kms(struct drm_device *dev, unsigned int pipe);
104 void radeon_disable_vblank_kms(struct drm_device *dev, unsigned int pipe);
105 int radeon_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int pipe,
106 				    int *max_error,
107 				    struct timeval *vblank_time,
108 				    unsigned flags);
109 extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, unsigned int crtc,
110 				      unsigned int flags, int *vpos, int *hpos,
111 				      ktime_t *stime, ktime_t *etime,
112 				      const struct drm_display_mode *mode);
113 extern bool radeon_is_px(struct drm_device *dev);
114 extern const struct drm_ioctl_desc radeon_ioctls_kms[];
115 extern int radeon_max_kms_ioctl;
116 #ifdef DUMBBELL_WIP
117 int radeon_mmap(struct file *filp, struct vm_area_struct *vma);
118 #endif /* DUMBBELL_WIP */
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 
134 #if defined(CONFIG_DEBUG_FS)
135 int radeon_debugfs_init(struct drm_minor *minor);
136 void radeon_debugfs_cleanup(struct drm_minor *minor);
137 #endif
138 
139 /* atpx handler */
140 #if defined(CONFIG_VGA_SWITCHEROO)
141 void radeon_register_atpx_handler(void);
142 void radeon_unregister_atpx_handler(void);
143 #else
144 static inline void radeon_register_atpx_handler(void) {}
145 static inline void radeon_unregister_atpx_handler(void) {}
146 #endif
147 
148 int radeon_no_wb;
149 int radeon_modeset = 1;
150 int radeon_dynclks = -1;
151 int radeon_r4xx_atom = 0;
152 int radeon_agpmode = 0;
153 int radeon_vram_limit = 0;
154 int radeon_gart_size = -1; /* auto */
155 int radeon_benchmarking = 0;
156 int radeon_testing = 0;
157 int radeon_connector_table = 0;
158 int radeon_tv = 1;
159 int radeon_audio = -1;
160 int radeon_disp_priority = 0;
161 int radeon_hw_i2c = 0;
162 int radeon_pcie_gen2 = -1;
163 int radeon_msi = -1;
164 int radeon_lockup_timeout = 10000;
165 int radeon_fastfb = 0;
166 int radeon_dpm = -1;
167 int radeon_aspm = -1;
168 int radeon_runtime_pm = -1;
169 int radeon_hard_reset = 0;
170 int radeon_vm_size = 8;
171 int radeon_vm_block_size = -1;
172 int radeon_deep_color = 0;
173 int radeon_use_pflipirq = 2;
174 int radeon_bapm = -1;
175 int radeon_backlight = -1;
176 
177 TUNABLE_INT("drm.radeon.no_wb", &radeon_no_wb);
178 MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
179 module_param_named(no_wb, radeon_no_wb, int, 0444);
180 
181 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
182 module_param_named(modeset, radeon_modeset, int, 0400);
183 
184 TUNABLE_INT("drm.radeon.dynclks", &radeon_dynclks);
185 MODULE_PARM_DESC(dynclks, "Disable/Enable dynamic clocks");
186 module_param_named(dynclks, radeon_dynclks, int, 0444);
187 
188 TUNABLE_INT("drm.radeon.r4xx_atom", &radeon_r4xx_atom);
189 MODULE_PARM_DESC(r4xx_atom, "Enable ATOMBIOS modesetting for R4xx");
190 module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
191 
192 TUNABLE_INT("drm.radeon.vram_limit", &radeon_vram_limit);
193 MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
194 module_param_named(vramlimit, radeon_vram_limit, int, 0600);
195 
196 TUNABLE_INT("drm.radeon.agpmode", &radeon_agpmode);
197 MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
198 module_param_named(agpmode, radeon_agpmode, int, 0444);
199 
200 TUNABLE_INT("drm.radeon.gart_size", &radeon_gart_size);
201 MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
202 module_param_named(gartsize, radeon_gart_size, int, 0600);
203 
204 TUNABLE_INT("drm.radeon.benchmarking", &radeon_benchmarking);
205 MODULE_PARM_DESC(benchmark, "Run benchmark");
206 module_param_named(benchmark, radeon_benchmarking, int, 0444);
207 
208 TUNABLE_INT("drm.radeon.testing", &radeon_testing);
209 MODULE_PARM_DESC(test, "Run tests");
210 module_param_named(test, radeon_testing, int, 0444);
211 
212 TUNABLE_INT("drm.radeon.connector_table", &radeon_connector_table);
213 MODULE_PARM_DESC(connector_table, "Force connector table");
214 module_param_named(connector_table, radeon_connector_table, int, 0444);
215 
216 TUNABLE_INT("drm.radeon.tv", &radeon_tv);
217 MODULE_PARM_DESC(tv, "TV enable (0 = disable)");
218 module_param_named(tv, radeon_tv, int, 0444);
219 
220 TUNABLE_INT("drm.radeon.audio", &radeon_audio);
221 MODULE_PARM_DESC(audio, "Audio enable (-1 = auto, 0 = disable, 1 = enable)");
222 module_param_named(audio, radeon_audio, int, 0444);
223 
224 TUNABLE_INT("drm.radeon.disp_priority", &radeon_disp_priority);
225 MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
226 module_param_named(disp_priority, radeon_disp_priority, int, 0444);
227 
228 TUNABLE_INT("drm.radeon.hw_i2c", &radeon_hw_i2c);
229 MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)");
230 module_param_named(hw_i2c, radeon_hw_i2c, int, 0444);
231 
232 TUNABLE_INT("drm.radeon.pcie_gen2", &radeon_pcie_gen2);
233 MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable)");
234 module_param_named(pcie_gen2, radeon_pcie_gen2, int, 0444);
235 
236 TUNABLE_INT("drm.radeon.msi", &radeon_msi);
237 MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)");
238 module_param_named(msi, radeon_msi, int, 0444);
239 
240 TUNABLE_INT("drm.radeon.lockup_timeout", &radeon_lockup_timeout);
241 MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (defaul 10000 = 10 seconds, 0 = disable)");
242 module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);
243 
244 TUNABLE_INT("drm.radeon.fastfb", &radeon_fastfb);
245 MODULE_PARM_DESC(fastfb, "Direct FB access for IGP chips (0 = disable, 1 = enable)");
246 module_param_named(fastfb, radeon_fastfb, int, 0444);
247 
248 TUNABLE_INT("drm.radeon.dpm", &radeon_dpm);
249 MODULE_PARM_DESC(dpm, "DPM support (1 = enable, 0 = disable, -1 = auto)");
250 module_param_named(dpm, radeon_dpm, int, 0444);
251 
252 TUNABLE_INT("drm.radeon.aspm", &radeon_aspm);
253 MODULE_PARM_DESC(aspm, "ASPM support (1 = enable, 0 = disable, -1 = auto)");
254 module_param_named(aspm, radeon_aspm, int, 0444);
255 
256 TUNABLE_INT("drm.radeon.runtime_pm", &radeon_runtime_pm);	/* careful with this */
257 MODULE_PARM_DESC(runpm, "PX runtime pm (1 = force enable, 0 = disable, -1 = PX only default)");
258 module_param_named(runpm, radeon_runtime_pm, int, 0444);
259 
260 TUNABLE_INT("drm.radeon.hard_reset", &radeon_hard_reset);	/* very careful with this */
261 MODULE_PARM_DESC(hard_reset, "PCI config reset (1 = force enable, 0 = disable (default))");
262 module_param_named(hard_reset, radeon_hard_reset, int, 0444);
263 
264 TUNABLE_INT("drm.radeon.vm_size", &radeon_vm_size);
265 MODULE_PARM_DESC(vm_size, "VM address space size in gigabytes (default 4GB)");
266 module_param_named(vm_size, radeon_vm_size, int, 0444);
267 
268 TUNABLE_INT("drm.radeon.vm_block_size", &radeon_vm_block_size);
269 MODULE_PARM_DESC(vm_block_size, "VM page table size in bits (default depending on vm_size)");
270 module_param_named(vm_block_size, radeon_vm_block_size, int, 0444);
271 
272 TUNABLE_INT("drm.radeon.deep_color", &radeon_deep_color);
273 MODULE_PARM_DESC(deep_color, "Deep Color support (1 = enable, 0 = disable (default))");
274 module_param_named(deep_color, radeon_deep_color, int, 0444);
275 
276 TUNABLE_INT("drm.radeon.use_pflipirq", &radeon_use_pflipirq);
277 MODULE_PARM_DESC(use_pflipirq, "Pflip irqs for pageflip completion (0 = disable, 1 = as fallback, 2 = exclusive (default))");
278 module_param_named(use_pflipirq, radeon_use_pflipirq, int, 0444);
279 
280 TUNABLE_INT("drm.radeon.bapm", &radeon_bapm);
281 MODULE_PARM_DESC(bapm, "BAPM support (1 = enable, 0 = disable, -1 = auto)");
282 module_param_named(bapm, radeon_bapm, int, 0444);
283 
284 TUNABLE_INT("drm.radeon.backlight", &radeon_backlight);
285 MODULE_PARM_DESC(backlight, "backlight support (1 = enable, 0 = disable, -1 = auto)");
286 module_param_named(backlight, radeon_backlight, int, 0444);
287 
288 static drm_pci_id_list_t pciidlist[] = {
289 	radeon_PCI_IDS
290 };
291 
292 static struct drm_driver kms_driver;
293 
294 #ifdef DUMBBELL_WIP
295 static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
296 {
297 	struct apertures_struct *ap;
298 	bool primary = false;
299 
300 	ap = alloc_apertures(1);
301 	if (!ap)
302 		return -ENOMEM;
303 
304 	ap->ranges[0].base = pci_resource_start(pdev, 0);
305 	ap->ranges[0].size = pci_resource_len(pdev, 0);
306 
307 #ifdef CONFIG_X86
308 	primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
309 #endif
310 	remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
311 	kfree(ap);
312 
313 	return 0;
314 }
315 
316 static int radeon_pci_probe(struct pci_dev *pdev,
317 			    const struct pci_device_id *ent)
318 {
319 	int ret;
320 
321 	/* Get rid of things like offb */
322 	ret = radeon_kick_out_firmware_fb(pdev);
323 	if (ret)
324 		return ret;
325 
326 	return drm_get_pci_dev(pdev, ent, &kms_driver);
327 }
328 
329 static void
330 radeon_pci_remove(struct pci_dev *pdev)
331 {
332 	struct drm_device *dev = pci_get_drvdata(pdev);
333 
334 	drm_put_dev(dev);
335 }
336 
337 static int radeon_pmops_suspend(struct device *dev)
338 {
339 	struct pci_dev *pdev = to_pci_dev(dev);
340 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
341 	return radeon_suspend_kms(drm_dev, true, true);
342 }
343 
344 static int radeon_pmops_resume(struct device *dev)
345 {
346 	struct pci_dev *pdev = to_pci_dev(dev);
347 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
348 	return radeon_resume_kms(drm_dev, true, true);
349 }
350 
351 static int radeon_pmops_freeze(struct device *dev)
352 {
353 	struct pci_dev *pdev = to_pci_dev(dev);
354 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
355 	return radeon_suspend_kms(drm_dev, false, true);
356 }
357 
358 static int radeon_pmops_thaw(struct device *dev)
359 {
360 	struct pci_dev *pdev = to_pci_dev(dev);
361 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
362 	return radeon_resume_kms(drm_dev, false, true);
363 }
364 
365 static int radeon_pmops_runtime_suspend(struct device *dev)
366 {
367 	struct pci_dev *pdev = to_pci_dev(dev);
368 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
369 	int ret;
370 
371 	if (!radeon_is_px(drm_dev)) {
372 #ifdef PM_TODO
373 		pm_runtime_forbid(dev);
374 #endif
375 		return -EBUSY;
376 	}
377 
378 	drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
379 	drm_kms_helper_poll_disable(drm_dev);
380 	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
381 
382 	ret = radeon_suspend_kms(drm_dev, false, false);
383 	pci_save_state(pdev);
384 	pci_disable_device(pdev);
385 	pci_set_power_state(pdev, PCI_D3cold);
386 	drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
387 
388 	return 0;
389 }
390 
391 static int radeon_pmops_runtime_resume(struct device *dev)
392 {
393 	struct pci_dev *pdev = to_pci_dev(dev);
394 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
395 	int ret;
396 
397 	if (!radeon_is_px(drm_dev))
398 		return -EINVAL;
399 
400 	drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
401 
402 	pci_set_power_state(pdev, PCI_D0);
403 	pci_restore_state(pdev);
404 	ret = pci_enable_device(pdev);
405 	if (ret)
406 		return ret;
407 	pci_set_master(pdev);
408 
409 	ret = radeon_resume_kms(drm_dev, false, false);
410 	drm_kms_helper_poll_enable(drm_dev);
411 	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
412 	drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
413 	return 0;
414 }
415 
416 static int radeon_pmops_runtime_idle(struct device *dev)
417 {
418 	struct pci_dev *pdev = to_pci_dev(dev);
419 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
420 	struct drm_crtc *crtc;
421 
422 	if (!radeon_is_px(drm_dev)) {
423 #ifdef PM_TODO
424 		pm_runtime_forbid(dev);
425 #endif
426 		return -EBUSY;
427 	}
428 
429 	list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) {
430 		if (crtc->enabled) {
431 			DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
432 			return -EBUSY;
433 		}
434 	}
435 
436 	pm_runtime_mark_last_busy(dev);
437 	pm_runtime_autosuspend(dev);
438 	/* we don't want the main rpm_idle to call suspend - we want to autosuspend */
439 	return 1;
440 }
441 
442 long radeon_drm_ioctl(struct file *filp,
443 		      unsigned int cmd, unsigned long arg)
444 {
445 	struct drm_file *file_priv = filp->private_data;
446 	struct drm_device *dev;
447 	long ret;
448 	dev = file_priv->minor->dev;
449 	ret = pm_runtime_get_sync(dev->dev);
450 	if (ret < 0)
451 		return ret;
452 
453 	ret = drm_ioctl(filp, cmd, arg);
454 
455 	pm_runtime_mark_last_busy(dev->dev);
456 	pm_runtime_put_autosuspend(dev->dev);
457 	return ret;
458 }
459 
460 static const struct dev_pm_ops radeon_pm_ops = {
461 	.suspend = radeon_pmops_suspend,
462 	.resume = radeon_pmops_resume,
463 	.freeze = radeon_pmops_freeze,
464 	.thaw = radeon_pmops_thaw,
465 	.poweroff = radeon_pmops_freeze,
466 	.restore = radeon_pmops_resume,
467 	.runtime_suspend = radeon_pmops_runtime_suspend,
468 	.runtime_resume = radeon_pmops_runtime_resume,
469 	.runtime_idle = radeon_pmops_runtime_idle,
470 };
471 
472 static const struct file_operations radeon_driver_kms_fops = {
473 	.owner = THIS_MODULE,
474 	.open = drm_open,
475 	.release = drm_release,
476 	.unlocked_ioctl = radeon_drm_ioctl,
477 	.mmap = radeon_mmap,
478 	.poll = drm_poll,
479 	.read = drm_read,
480 #ifdef CONFIG_COMPAT
481 	.compat_ioctl = radeon_kms_compat_ioctl,
482 #endif
483 };
484 #endif /* DUMBBELL_WIP */
485 
486 static int radeon_sysctl_init(struct drm_device *dev, struct sysctl_ctx_list *ctx,
487 			      struct sysctl_oid *top)
488 {
489 	return drm_add_busid_modesetting(dev, ctx, top);
490 }
491 
492 static struct drm_driver kms_driver = {
493 	.driver_features =
494 	    DRIVER_USE_AGP |
495 	    DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM |
496 	    DRIVER_PRIME | DRIVER_RENDER,
497 	.load = radeon_driver_load_kms,
498 	.use_msi = radeon_msi_ok,
499 	.open = radeon_driver_open_kms,
500 	.preclose = radeon_driver_preclose_kms,
501 	.postclose = radeon_driver_postclose_kms,
502 	.lastclose = radeon_driver_lastclose_kms,
503 	.unload = radeon_driver_unload_kms,
504 	.get_vblank_counter = radeon_get_vblank_counter_kms,
505 	.enable_vblank = radeon_enable_vblank_kms,
506 	.disable_vblank = radeon_disable_vblank_kms,
507 	.get_vblank_timestamp = radeon_get_vblank_timestamp_kms,
508 	.get_scanout_position = radeon_get_crtc_scanoutpos,
509 	.irq_preinstall = radeon_driver_irq_preinstall_kms,
510 	.irq_postinstall = radeon_driver_irq_postinstall_kms,
511 	.irq_uninstall = radeon_driver_irq_uninstall_kms,
512 	.irq_handler = radeon_driver_irq_handler_kms,
513 	.sysctl_init = radeon_sysctl_init,
514 	.ioctls = radeon_ioctls_kms,
515 	.gem_free_object = radeon_gem_object_free,
516 	.gem_open_object = radeon_gem_object_open,
517 	.gem_close_object = radeon_gem_object_close,
518 	.dumb_create = radeon_mode_dumb_create,
519 	.dumb_map_offset = radeon_mode_dumb_mmap,
520 	.dumb_destroy = drm_gem_dumb_destroy,
521 #ifdef DUMBBELL_WIP
522 	.fops = &radeon_driver_kms_fops,
523 #endif /* DUMBBELL_WIP */
524 
525 #ifdef DUMBBELL_WIP
526 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
527 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
528 	.gem_prime_export = drm_gem_prime_export,
529 	.gem_prime_import = drm_gem_prime_import,
530 	.gem_prime_pin = radeon_gem_prime_pin,
531 	.gem_prime_unpin = radeon_gem_prime_unpin,
532 	.gem_prime_get_sg_table = radeon_gem_prime_get_sg_table,
533 	.gem_prime_import_sg_table = radeon_gem_prime_import_sg_table,
534 	.gem_prime_vmap = radeon_gem_prime_vmap,
535 	.gem_prime_vunmap = radeon_gem_prime_vunmap,
536 #endif /* DUMBBELL_WIP */
537 
538 	.name = DRIVER_NAME,
539 	.desc = DRIVER_DESC,
540 	.date = DRIVER_DATE,
541 	.major = KMS_DRIVER_MAJOR,
542 	.minor = KMS_DRIVER_MINOR,
543 	.patchlevel = KMS_DRIVER_PATCHLEVEL,
544 };
545 
546 #ifdef DUMBBELL_WIP
547 static struct drm_driver *driver;
548 static struct pci_driver *pdriver;
549 
550 static struct pci_driver radeon_kms_pci_driver = {
551 	.name = DRIVER_NAME,
552 	.id_table = pciidlist,
553 	.probe = radeon_pci_probe,
554 	.remove = radeon_pci_remove,
555 	.driver.pm = &radeon_pm_ops,
556 };
557 
558 static int __init radeon_init(void)
559 {
560 	if (radeon_modeset == 1) {
561 		DRM_INFO("radeon kernel modesetting enabled.\n");
562 		driver = &kms_driver;
563 		pdriver = &radeon_kms_pci_driver;
564 		driver->driver_features |= DRIVER_MODESET;
565 		driver->num_ioctls = radeon_max_kms_ioctl;
566 		radeon_register_atpx_handler();
567 
568 	} else {
569 		DRM_ERROR("No UMS support in radeon module!\n");
570 		return -EINVAL;
571 	}
572 
573 	/* let modprobe override vga console setting */
574 	return drm_pci_init(driver, pdriver);
575 }
576 
577 static void __exit radeon_exit(void)
578 {
579 	drm_pci_exit(driver, pdriver);
580 	radeon_unregister_atpx_handler();
581 }
582 #endif /* DUMBBELL_WIP */
583 
584 /* =================================================================== */
585 
586 static int
587 radeon_probe(device_t kdev)
588 {
589 
590 	return drm_probe(kdev, pciidlist);
591 }
592 
593 static int
594 radeon_attach(device_t kdev)
595 {
596 	struct drm_device *dev;
597 
598 	dev = device_get_softc(kdev);
599 	if (radeon_modeset == 1) {
600 		kms_driver.driver_features |= DRIVER_MODESET;
601 		kms_driver.num_ioctls = radeon_max_kms_ioctl;
602 		radeon_register_atpx_handler();
603 	}
604 	dev->driver = &kms_driver;
605 	return (drm_attach(kdev, pciidlist));
606 }
607 
608 static int
609 radeon_suspend(device_t kdev)
610 {
611 	struct drm_device *dev;
612 	int ret;
613 
614 	dev = device_get_softc(kdev);
615 	ret = radeon_suspend_kms(dev, true, true);
616 
617 	return (-ret);
618 }
619 
620 static int
621 radeon_resume(device_t kdev)
622 {
623 	struct drm_device *dev;
624 	int ret;
625 
626 	dev = device_get_softc(kdev);
627 	ret = radeon_resume_kms(dev, true, true);
628 
629 	return (-ret);
630 }
631 
632 static device_method_t radeon_methods[] = {
633 	/* Device interface */
634 	DEVMETHOD(device_probe,		radeon_probe),
635 	DEVMETHOD(device_attach,	radeon_attach),
636 	DEVMETHOD(device_suspend,	radeon_suspend),
637 	DEVMETHOD(device_resume,	radeon_resume),
638 	DEVMETHOD(device_detach,	drm_release),
639 	DEVMETHOD_END
640 };
641 
642 static driver_t radeon_driver = {
643 	"drm",
644 	radeon_methods,
645 	sizeof(struct drm_device)
646 };
647 
648 extern devclass_t drm_devclass;
649 DRIVER_MODULE_ORDERED(radeonkms, vgapci, radeon_driver, drm_devclass,
650     NULL, NULL, SI_ORDER_ANY);
651 MODULE_DEPEND(radeonkms, drm, 1, 1, 1);
652 MODULE_DEPEND(radeonkms, agp, 1, 1, 1);
653 MODULE_DEPEND(radeonkms, iicbus, 1, 1, 1);
654 MODULE_DEPEND(radeonkms, iic, 1, 1, 1);
655 MODULE_DEPEND(radeonkms, iicbb, 1, 1, 1);
656 #ifdef CONFIG_ACPI
657 MODULE_DEPEND(radeonkms, acpi, 1, 1, 1);
658 #endif
659