xref: /openbmc/linux/drivers/gpu/drm/gma500/psb_drv.c (revision 3932b9ca)
1 /**************************************************************************
2  * Copyright (c) 2007-2011, Intel Corporation.
3  * All Rights Reserved.
4  * Copyright (c) 2008, Tungsten Graphics, Inc. Cedar Park, TX., USA.
5  * All Rights Reserved.
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms and conditions of the GNU General Public License,
9  * version 2, as published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14  * more details.
15  *
16  * You should have received a copy of the GNU General Public License along with
17  * this program; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  **************************************************************************/
21 
22 #include <drm/drmP.h>
23 #include <drm/drm.h>
24 #include "psb_drv.h"
25 #include "framebuffer.h"
26 #include "psb_reg.h"
27 #include "psb_intel_reg.h"
28 #include "intel_bios.h"
29 #include "mid_bios.h"
30 #include <drm/drm_pciids.h>
31 #include "power.h"
32 #include <linux/cpu.h>
33 #include <linux/notifier.h>
34 #include <linux/spinlock.h>
35 #include <linux/pm_runtime.h>
36 #include <acpi/video.h>
37 #include <linux/module.h>
38 
39 static struct drm_driver driver;
40 static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
41 
42 /*
43  * The table below contains a mapping of the PCI vendor ID and the PCI Device ID
44  * to the different groups of PowerVR 5-series chip designs
45  *
46  * 0x8086 = Intel Corporation
47  *
48  * PowerVR SGX535    - Poulsbo    - Intel GMA 500, Intel Atom Z5xx
49  * PowerVR SGX535    - Moorestown - Intel GMA 600
50  * PowerVR SGX535    - Oaktrail   - Intel GMA 600, Intel Atom Z6xx, E6xx
51  * PowerVR SGX540    - Medfield   - Intel Atom Z2460
52  * PowerVR SGX544MP2 - Medfield   -
53  * PowerVR SGX545    - Cedartrail - Intel GMA 3600, Intel Atom D2500, N2600
54  * PowerVR SGX545    - Cedartrail - Intel GMA 3650, Intel Atom D2550, D2700,
55  *                                  N2800
56  */
57 static const struct pci_device_id pciidlist[] = {
58 	{ 0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
59 	{ 0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
60 #if defined(CONFIG_DRM_GMA600)
61 	{ 0x8086, 0x4100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
62 	{ 0x8086, 0x4101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
63 	{ 0x8086, 0x4102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
64 	{ 0x8086, 0x4103, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
65 	{ 0x8086, 0x4104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
66 	{ 0x8086, 0x4105, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
67 	{ 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
68 	{ 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
69 	{ 0x8086, 0x4108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
70 #endif
71 #if defined(CONFIG_DRM_MEDFIELD)
72 	{ 0x8086, 0x0130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
73 	{ 0x8086, 0x0131, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
74 	{ 0x8086, 0x0132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
75 	{ 0x8086, 0x0133, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
76 	{ 0x8086, 0x0134, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
77 	{ 0x8086, 0x0135, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
78 	{ 0x8086, 0x0136, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
79 	{ 0x8086, 0x0137, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
80 #endif
81 #if defined(CONFIG_DRM_GMA3600)
82 	{ 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
83 	{ 0x8086, 0x0be1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
84 	{ 0x8086, 0x0be2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
85 	{ 0x8086, 0x0be3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
86 	{ 0x8086, 0x0be4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
87 	{ 0x8086, 0x0be5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
88 	{ 0x8086, 0x0be6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
89 	{ 0x8086, 0x0be7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
90 	{ 0x8086, 0x0be8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
91 	{ 0x8086, 0x0be9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
92 	{ 0x8086, 0x0bea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
93 	{ 0x8086, 0x0beb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
94 	{ 0x8086, 0x0bec, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
95 	{ 0x8086, 0x0bed, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
96 	{ 0x8086, 0x0bee, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
97 	{ 0x8086, 0x0bef, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
98 #endif
99 	{ 0, }
100 };
101 MODULE_DEVICE_TABLE(pci, pciidlist);
102 
103 /*
104  * Standard IOCTLs.
105  */
106 static const struct drm_ioctl_desc psb_ioctls[] = {
107 };
108 
109 static void psb_driver_lastclose(struct drm_device *dev)
110 {
111 	int ret;
112 	struct drm_psb_private *dev_priv = dev->dev_private;
113 	struct psb_fbdev *fbdev = dev_priv->fbdev;
114 
115 	ret = drm_fb_helper_restore_fbdev_mode_unlocked(&fbdev->psb_fb_helper);
116 	if (ret)
117 		DRM_DEBUG("failed to restore crtc mode\n");
118 
119 	return;
120 }
121 
122 static int psb_do_init(struct drm_device *dev)
123 {
124 	struct drm_psb_private *dev_priv = dev->dev_private;
125 	struct psb_gtt *pg = &dev_priv->gtt;
126 
127 	uint32_t stolen_gtt;
128 
129 	if (pg->mmu_gatt_start & 0x0FFFFFFF) {
130 		dev_err(dev->dev, "Gatt must be 256M aligned. This is a bug.\n");
131 		return -EINVAL;
132 	}
133 
134 	stolen_gtt = (pg->stolen_size >> PAGE_SHIFT) * 4;
135 	stolen_gtt = (stolen_gtt + PAGE_SIZE - 1) >> PAGE_SHIFT;
136 	stolen_gtt = (stolen_gtt < pg->gtt_pages) ? stolen_gtt : pg->gtt_pages;
137 
138 	dev_priv->gatt_free_offset = pg->mmu_gatt_start +
139 	    (stolen_gtt << PAGE_SHIFT) * 1024;
140 
141 	spin_lock_init(&dev_priv->irqmask_lock);
142 	spin_lock_init(&dev_priv->lock_2d);
143 
144 	PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0);
145 	PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1);
146 	PSB_RSGX32(PSB_CR_BIF_BANK1);
147 
148 	/* Do not bypass any MMU access, let them pagefault instead */
149 	PSB_WSGX32((PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_MMU_ER_MASK),
150 		   PSB_CR_BIF_CTRL);
151 	PSB_RSGX32(PSB_CR_BIF_CTRL);
152 
153 	psb_spank(dev_priv);
154 
155 	/* mmu_gatt ?? */
156 	PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
157 	PSB_RSGX32(PSB_CR_BIF_TWOD_REQ_BASE); /* Post */
158 
159 	return 0;
160 }
161 
162 static int psb_driver_unload(struct drm_device *dev)
163 {
164 	struct drm_psb_private *dev_priv = dev->dev_private;
165 
166 	/* TODO: Kill vblank etc here */
167 
168 	if (dev_priv) {
169 		if (dev_priv->backlight_device)
170 			gma_backlight_exit(dev);
171 		psb_modeset_cleanup(dev);
172 
173 		if (dev_priv->ops->chip_teardown)
174 			dev_priv->ops->chip_teardown(dev);
175 
176 		psb_intel_opregion_fini(dev);
177 
178 		if (dev_priv->pf_pd) {
179 			psb_mmu_free_pagedir(dev_priv->pf_pd);
180 			dev_priv->pf_pd = NULL;
181 		}
182 		if (dev_priv->mmu) {
183 			struct psb_gtt *pg = &dev_priv->gtt;
184 
185 			down_read(&pg->sem);
186 			psb_mmu_remove_pfn_sequence(
187 				psb_mmu_get_default_pd
188 				(dev_priv->mmu),
189 				pg->mmu_gatt_start,
190 				dev_priv->vram_stolen_size >> PAGE_SHIFT);
191 			up_read(&pg->sem);
192 			psb_mmu_driver_takedown(dev_priv->mmu);
193 			dev_priv->mmu = NULL;
194 		}
195 		psb_gtt_takedown(dev);
196 		if (dev_priv->scratch_page) {
197 			set_pages_wb(dev_priv->scratch_page, 1);
198 			__free_page(dev_priv->scratch_page);
199 			dev_priv->scratch_page = NULL;
200 		}
201 		if (dev_priv->vdc_reg) {
202 			iounmap(dev_priv->vdc_reg);
203 			dev_priv->vdc_reg = NULL;
204 		}
205 		if (dev_priv->sgx_reg) {
206 			iounmap(dev_priv->sgx_reg);
207 			dev_priv->sgx_reg = NULL;
208 		}
209 		if (dev_priv->aux_reg) {
210 			iounmap(dev_priv->aux_reg);
211 			dev_priv->aux_reg = NULL;
212 		}
213 		if (dev_priv->aux_pdev)
214 			pci_dev_put(dev_priv->aux_pdev);
215 
216 		/* Destroy VBT data */
217 		psb_intel_destroy_bios(dev);
218 
219 		kfree(dev_priv);
220 		dev->dev_private = NULL;
221 	}
222 	gma_power_uninit(dev);
223 	return 0;
224 }
225 
226 static int psb_driver_load(struct drm_device *dev, unsigned long flags)
227 {
228 	struct drm_psb_private *dev_priv;
229 	unsigned long resource_start, resource_len;
230 	unsigned long irqflags;
231 	int ret = -ENOMEM;
232 	struct drm_connector *connector;
233 	struct gma_encoder *gma_encoder;
234 	struct psb_gtt *pg;
235 
236 	/* allocating and initializing driver private data */
237 	dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
238 	if (dev_priv == NULL)
239 		return -ENOMEM;
240 
241 	dev_priv->ops = (struct psb_ops *)flags;
242 	dev_priv->dev = dev;
243 	dev->dev_private = (void *) dev_priv;
244 
245 	pg = &dev_priv->gtt;
246 
247 	pci_set_master(dev->pdev);
248 
249 	dev_priv->num_pipe = dev_priv->ops->pipes;
250 
251 	resource_start = pci_resource_start(dev->pdev, PSB_MMIO_RESOURCE);
252 
253 	dev_priv->vdc_reg =
254 	    ioremap(resource_start + PSB_VDC_OFFSET, PSB_VDC_SIZE);
255 	if (!dev_priv->vdc_reg)
256 		goto out_err;
257 
258 	dev_priv->sgx_reg = ioremap(resource_start + dev_priv->ops->sgx_offset,
259 							PSB_SGX_SIZE);
260 	if (!dev_priv->sgx_reg)
261 		goto out_err;
262 
263 	if (IS_MRST(dev)) {
264 		dev_priv->aux_pdev = pci_get_bus_and_slot(0, PCI_DEVFN(3, 0));
265 
266 		if (dev_priv->aux_pdev) {
267 			resource_start = pci_resource_start(dev_priv->aux_pdev,
268 							    PSB_AUX_RESOURCE);
269 			resource_len = pci_resource_len(dev_priv->aux_pdev,
270 							PSB_AUX_RESOURCE);
271 			dev_priv->aux_reg = ioremap_nocache(resource_start,
272 							    resource_len);
273 			if (!dev_priv->aux_reg)
274 				goto out_err;
275 
276 			DRM_DEBUG_KMS("Found aux vdc");
277 		} else {
278 			/* Couldn't find the aux vdc so map to primary vdc */
279 			dev_priv->aux_reg = dev_priv->vdc_reg;
280 			DRM_DEBUG_KMS("Couldn't find aux pci device");
281 		}
282 		dev_priv->gmbus_reg = dev_priv->aux_reg;
283 	} else {
284 		dev_priv->gmbus_reg = dev_priv->vdc_reg;
285 	}
286 
287 	psb_intel_opregion_setup(dev);
288 
289 	ret = dev_priv->ops->chip_setup(dev);
290 	if (ret)
291 		goto out_err;
292 
293 	/* Init OSPM support */
294 	gma_power_init(dev);
295 
296 	ret = -ENOMEM;
297 
298 	dev_priv->scratch_page = alloc_page(GFP_DMA32 | __GFP_ZERO);
299 	if (!dev_priv->scratch_page)
300 		goto out_err;
301 
302 	set_pages_uc(dev_priv->scratch_page, 1);
303 
304 	ret = psb_gtt_init(dev, 0);
305 	if (ret)
306 		goto out_err;
307 
308 	dev_priv->mmu = psb_mmu_driver_init(dev, 1, 0, 0);
309 	if (!dev_priv->mmu)
310 		goto out_err;
311 
312 	dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0);
313 	if (!dev_priv->pf_pd)
314 		goto out_err;
315 
316 	ret = psb_do_init(dev);
317 	if (ret)
318 		return ret;
319 
320 	/* Add stolen memory to SGX MMU */
321 	down_read(&pg->sem);
322 	ret = psb_mmu_insert_pfn_sequence(psb_mmu_get_default_pd(dev_priv->mmu),
323 					  dev_priv->stolen_base >> PAGE_SHIFT,
324 					  pg->gatt_start,
325 					  pg->stolen_size >> PAGE_SHIFT, 0);
326 	up_read(&pg->sem);
327 
328 	psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0);
329 	psb_mmu_set_pd_context(dev_priv->pf_pd, 1);
330 
331 	PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE);
332 	PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE);
333 
334 	acpi_video_register();
335 
336 	/* Setup vertical blanking handling */
337 	ret = drm_vblank_init(dev, dev_priv->num_pipe);
338 	if (ret)
339 		goto out_err;
340 
341 	/*
342 	 * Install interrupt handlers prior to powering off SGX or else we will
343 	 * crash.
344 	 */
345 	dev_priv->vdc_irq_mask = 0;
346 	dev_priv->pipestat[0] = 0;
347 	dev_priv->pipestat[1] = 0;
348 	dev_priv->pipestat[2] = 0;
349 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
350 	PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
351 	PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R);
352 	PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R);
353 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
354 
355 	drm_irq_install(dev, dev->pdev->irq);
356 
357 	dev->vblank_disable_allowed = true;
358 	dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
359 	dev->driver->get_vblank_counter = psb_get_vblank_counter;
360 
361 	psb_modeset_init(dev);
362 	psb_fbdev_init(dev);
363 	drm_kms_helper_poll_init(dev);
364 
365 	/* Only add backlight support if we have LVDS output */
366 	list_for_each_entry(connector, &dev->mode_config.connector_list,
367 			    head) {
368 		gma_encoder = gma_attached_encoder(connector);
369 
370 		switch (gma_encoder->type) {
371 		case INTEL_OUTPUT_LVDS:
372 		case INTEL_OUTPUT_MIPI:
373 			ret = gma_backlight_init(dev);
374 			break;
375 		}
376 	}
377 
378 	if (ret)
379 		return ret;
380 	psb_intel_opregion_enable_asle(dev);
381 #if 0
382 	/* Enable runtime pm at last */
383 	pm_runtime_enable(&dev->pdev->dev);
384 	pm_runtime_set_active(&dev->pdev->dev);
385 #endif
386 	/* Intel drm driver load is done, continue doing pvr load */
387 	return 0;
388 out_err:
389 	psb_driver_unload(dev);
390 	return ret;
391 }
392 
393 static int psb_driver_device_is_agp(struct drm_device *dev)
394 {
395 	return 0;
396 }
397 
398 static inline void get_brightness(struct backlight_device *bd)
399 {
400 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
401 	if (bd) {
402 		bd->props.brightness = bd->ops->get_brightness(bd);
403 		backlight_update_status(bd);
404 	}
405 #endif
406 }
407 
408 static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
409 			       unsigned long arg)
410 {
411 	struct drm_file *file_priv = filp->private_data;
412 	struct drm_device *dev = file_priv->minor->dev;
413 	struct drm_psb_private *dev_priv = dev->dev_private;
414 	static unsigned int runtime_allowed;
415 
416 	if (runtime_allowed == 1 && dev_priv->is_lvds_on) {
417 		runtime_allowed++;
418 		pm_runtime_allow(&dev->pdev->dev);
419 		dev_priv->rpm_enabled = 1;
420 	}
421 	return drm_ioctl(filp, cmd, arg);
422 	/* FIXME: do we need to wrap the other side of this */
423 }
424 
425 /*
426  * When a client dies:
427  *    - Check for and clean up flipped page state
428  */
429 static void psb_driver_preclose(struct drm_device *dev, struct drm_file *priv)
430 {
431 }
432 
433 static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
434 {
435 	return drm_get_pci_dev(pdev, ent, &driver);
436 }
437 
438 
439 static void psb_pci_remove(struct pci_dev *pdev)
440 {
441 	struct drm_device *dev = pci_get_drvdata(pdev);
442 	drm_put_dev(dev);
443 }
444 
445 static const struct dev_pm_ops psb_pm_ops = {
446 	.resume = gma_power_resume,
447 	.suspend = gma_power_suspend,
448 	.thaw = gma_power_thaw,
449 	.freeze = gma_power_freeze,
450 	.restore = gma_power_restore,
451 	.runtime_suspend = psb_runtime_suspend,
452 	.runtime_resume = psb_runtime_resume,
453 	.runtime_idle = psb_runtime_idle,
454 };
455 
456 static const struct vm_operations_struct psb_gem_vm_ops = {
457 	.fault = psb_gem_fault,
458 	.open = drm_gem_vm_open,
459 	.close = drm_gem_vm_close,
460 };
461 
462 static const struct file_operations psb_gem_fops = {
463 	.owner = THIS_MODULE,
464 	.open = drm_open,
465 	.release = drm_release,
466 	.unlocked_ioctl = psb_unlocked_ioctl,
467 	.mmap = drm_gem_mmap,
468 	.poll = drm_poll,
469 	.read = drm_read,
470 };
471 
472 static struct drm_driver driver = {
473 	.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | \
474 			   DRIVER_MODESET | DRIVER_GEM,
475 	.load = psb_driver_load,
476 	.unload = psb_driver_unload,
477 	.lastclose = psb_driver_lastclose,
478 	.preclose = psb_driver_preclose,
479 
480 	.num_ioctls = ARRAY_SIZE(psb_ioctls),
481 	.device_is_agp = psb_driver_device_is_agp,
482 	.irq_preinstall = psb_irq_preinstall,
483 	.irq_postinstall = psb_irq_postinstall,
484 	.irq_uninstall = psb_irq_uninstall,
485 	.irq_handler = psb_irq_handler,
486 	.enable_vblank = psb_enable_vblank,
487 	.disable_vblank = psb_disable_vblank,
488 	.get_vblank_counter = psb_get_vblank_counter,
489 
490 	.gem_free_object = psb_gem_free_object,
491 	.gem_vm_ops = &psb_gem_vm_ops,
492 
493 	.dumb_create = psb_gem_dumb_create,
494 	.dumb_map_offset = psb_gem_dumb_map_gtt,
495 	.dumb_destroy = drm_gem_dumb_destroy,
496 	.ioctls = psb_ioctls,
497 	.fops = &psb_gem_fops,
498 	.name = DRIVER_NAME,
499 	.desc = DRIVER_DESC,
500 	.date = DRIVER_DATE,
501 	.major = DRIVER_MAJOR,
502 	.minor = DRIVER_MINOR,
503 	.patchlevel = DRIVER_PATCHLEVEL
504 };
505 
506 static struct pci_driver psb_pci_driver = {
507 	.name = DRIVER_NAME,
508 	.id_table = pciidlist,
509 	.probe = psb_pci_probe,
510 	.remove = psb_pci_remove,
511 	.driver.pm = &psb_pm_ops,
512 };
513 
514 static int __init psb_init(void)
515 {
516 	return drm_pci_init(&driver, &psb_pci_driver);
517 }
518 
519 static void __exit psb_exit(void)
520 {
521 	drm_pci_exit(&driver, &psb_pci_driver);
522 }
523 
524 late_initcall(psb_init);
525 module_exit(psb_exit);
526 
527 MODULE_AUTHOR(DRIVER_AUTHOR);
528 MODULE_DESCRIPTION(DRIVER_DESC);
529 MODULE_LICENSE(DRIVER_LICENSE);
530