xref: /openbmc/linux/drivers/gpu/drm/gma500/psb_drv.c (revision 77d84ff8)
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 <drm/gma_drm.h>
25 #include "psb_drv.h"
26 #include "framebuffer.h"
27 #include "psb_reg.h"
28 #include "psb_intel_reg.h"
29 #include "intel_bios.h"
30 #include "mid_bios.h"
31 #include <drm/drm_pciids.h>
32 #include "power.h"
33 #include <linux/cpu.h>
34 #include <linux/notifier.h>
35 #include <linux/spinlock.h>
36 #include <linux/pm_runtime.h>
37 #include <acpi/video.h>
38 #include <linux/module.h>
39 
40 static int drm_psb_trap_pagefaults;
41 
42 static int psb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
43 
44 MODULE_PARM_DESC(trap_pagefaults, "Error and reset on MMU pagefaults");
45 module_param_named(trap_pagefaults, drm_psb_trap_pagefaults, int, 0600);
46 
47 
48 static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
49 	{ 0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
50 	{ 0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
51 #if defined(CONFIG_DRM_GMA600)
52 	{ 0x8086, 0x4100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
53 	{ 0x8086, 0x4101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
54 	{ 0x8086, 0x4102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
55 	{ 0x8086, 0x4103, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
56 	{ 0x8086, 0x4104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
57 	{ 0x8086, 0x4105, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
58 	{ 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
59 	{ 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
60 	/* Atom E620 */
61 	{ 0x8086, 0x4108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
62 #endif
63 #if defined(CONFIG_DRM_MEDFIELD)
64 	{0x8086, 0x0130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
65 	{0x8086, 0x0131, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
66 	{0x8086, 0x0132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
67 	{0x8086, 0x0133, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
68 	{0x8086, 0x0134, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
69 	{0x8086, 0x0135, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
70 	{0x8086, 0x0136, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
71 	{0x8086, 0x0137, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
72 #endif
73 #if defined(CONFIG_DRM_GMA3600)
74 	{ 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
75 	{ 0x8086, 0x0be1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
76 	{ 0x8086, 0x0be2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
77 	{ 0x8086, 0x0be3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
78 	{ 0x8086, 0x0be4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
79 	{ 0x8086, 0x0be5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
80 	{ 0x8086, 0x0be6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
81 	{ 0x8086, 0x0be7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
82 	{ 0x8086, 0x0be8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
83 	{ 0x8086, 0x0be9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
84 	{ 0x8086, 0x0bea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
85 	{ 0x8086, 0x0beb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
86 	{ 0x8086, 0x0bec, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
87 	{ 0x8086, 0x0bed, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
88 	{ 0x8086, 0x0bee, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
89 	{ 0x8086, 0x0bef, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
90 #endif
91 	{ 0, }
92 };
93 MODULE_DEVICE_TABLE(pci, pciidlist);
94 
95 /*
96  * Standard IOCTLs.
97  */
98 
99 #define DRM_IOCTL_GMA_ADB	\
100 		DRM_IOWR(DRM_GMA_ADB + DRM_COMMAND_BASE, uint32_t)
101 #define DRM_IOCTL_GMA_MODE_OPERATION	\
102 		DRM_IOWR(DRM_GMA_MODE_OPERATION + DRM_COMMAND_BASE, \
103 			 struct drm_psb_mode_operation_arg)
104 #define DRM_IOCTL_GMA_STOLEN_MEMORY	\
105 		DRM_IOWR(DRM_GMA_STOLEN_MEMORY + DRM_COMMAND_BASE, \
106 			 struct drm_psb_stolen_memory_arg)
107 #define DRM_IOCTL_GMA_GAMMA	\
108 		DRM_IOWR(DRM_GMA_GAMMA + DRM_COMMAND_BASE, \
109 			 struct drm_psb_dpst_lut_arg)
110 #define DRM_IOCTL_GMA_DPST_BL	\
111 		DRM_IOWR(DRM_GMA_DPST_BL + DRM_COMMAND_BASE, \
112 			 uint32_t)
113 #define DRM_IOCTL_GMA_GET_PIPE_FROM_CRTC_ID	\
114 		DRM_IOWR(DRM_GMA_GET_PIPE_FROM_CRTC_ID + DRM_COMMAND_BASE, \
115 			 struct drm_psb_get_pipe_from_crtc_id_arg)
116 #define DRM_IOCTL_GMA_GEM_CREATE	\
117 		DRM_IOWR(DRM_GMA_GEM_CREATE + DRM_COMMAND_BASE, \
118 			 struct drm_psb_gem_create)
119 #define DRM_IOCTL_GMA_GEM_MMAP	\
120 		DRM_IOWR(DRM_GMA_GEM_MMAP + DRM_COMMAND_BASE, \
121 			 struct drm_psb_gem_mmap)
122 
123 static int psb_adb_ioctl(struct drm_device *dev, void *data,
124 			 struct drm_file *file_priv);
125 static int psb_mode_operation_ioctl(struct drm_device *dev, void *data,
126 				    struct drm_file *file_priv);
127 static int psb_stolen_memory_ioctl(struct drm_device *dev, void *data,
128 				   struct drm_file *file_priv);
129 static int psb_gamma_ioctl(struct drm_device *dev, void *data,
130 			   struct drm_file *file_priv);
131 static int psb_dpst_bl_ioctl(struct drm_device *dev, void *data,
132 			     struct drm_file *file_priv);
133 
134 static const struct drm_ioctl_desc psb_ioctls[] = {
135 	DRM_IOCTL_DEF_DRV(GMA_ADB, psb_adb_ioctl, DRM_AUTH),
136 	DRM_IOCTL_DEF_DRV(GMA_MODE_OPERATION, psb_mode_operation_ioctl,
137 		      DRM_AUTH),
138 	DRM_IOCTL_DEF_DRV(GMA_STOLEN_MEMORY, psb_stolen_memory_ioctl,
139 		      DRM_AUTH),
140 	DRM_IOCTL_DEF_DRV(GMA_GAMMA, psb_gamma_ioctl, DRM_AUTH),
141 	DRM_IOCTL_DEF_DRV(GMA_DPST_BL, psb_dpst_bl_ioctl, DRM_AUTH),
142 	DRM_IOCTL_DEF_DRV(GMA_GET_PIPE_FROM_CRTC_ID,
143 					psb_intel_get_pipe_from_crtc_id, 0),
144 	DRM_IOCTL_DEF_DRV(GMA_GEM_CREATE, psb_gem_create_ioctl,
145 						DRM_UNLOCKED | DRM_AUTH),
146 	DRM_IOCTL_DEF_DRV(GMA_GEM_MMAP, psb_gem_mmap_ioctl,
147 						DRM_UNLOCKED | DRM_AUTH),
148 };
149 
150 static void psb_lastclose(struct drm_device *dev)
151 {
152 	int ret;
153 	struct drm_psb_private *dev_priv = dev->dev_private;
154 	struct psb_fbdev *fbdev = dev_priv->fbdev;
155 
156 	drm_modeset_lock_all(dev);
157 	ret = drm_fb_helper_restore_fbdev_mode(&fbdev->psb_fb_helper);
158 	if (ret)
159 		DRM_DEBUG("failed to restore crtc mode\n");
160 	drm_modeset_unlock_all(dev);
161 
162 	return;
163 }
164 
165 static int psb_do_init(struct drm_device *dev)
166 {
167 	struct drm_psb_private *dev_priv = dev->dev_private;
168 	struct psb_gtt *pg = &dev_priv->gtt;
169 
170 	uint32_t stolen_gtt;
171 
172 	int ret = -ENOMEM;
173 
174 	if (pg->mmu_gatt_start & 0x0FFFFFFF) {
175 		dev_err(dev->dev, "Gatt must be 256M aligned. This is a bug.\n");
176 		ret = -EINVAL;
177 		goto out_err;
178 	}
179 
180 
181 	stolen_gtt = (pg->stolen_size >> PAGE_SHIFT) * 4;
182 	stolen_gtt = (stolen_gtt + PAGE_SIZE - 1) >> PAGE_SHIFT;
183 	stolen_gtt =
184 	    (stolen_gtt < pg->gtt_pages) ? stolen_gtt : pg->gtt_pages;
185 
186 	dev_priv->gatt_free_offset = pg->mmu_gatt_start +
187 	    (stolen_gtt << PAGE_SHIFT) * 1024;
188 
189 	spin_lock_init(&dev_priv->irqmask_lock);
190 	spin_lock_init(&dev_priv->lock_2d);
191 
192 	PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0);
193 	PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1);
194 	PSB_RSGX32(PSB_CR_BIF_BANK1);
195 	PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) | _PSB_MMU_ER_MASK,
196 							PSB_CR_BIF_CTRL);
197 	psb_spank(dev_priv);
198 
199 	/* mmu_gatt ?? */
200 	PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
201 	return 0;
202 out_err:
203 	return ret;
204 }
205 
206 static int psb_driver_unload(struct drm_device *dev)
207 {
208 	struct drm_psb_private *dev_priv = dev->dev_private;
209 
210 	/* Kill vblank etc here */
211 
212 
213 	if (dev_priv) {
214 		if (dev_priv->backlight_device)
215 			gma_backlight_exit(dev);
216 		psb_modeset_cleanup(dev);
217 
218 		if (dev_priv->ops->chip_teardown)
219 			dev_priv->ops->chip_teardown(dev);
220 
221 		psb_intel_opregion_fini(dev);
222 
223 		if (dev_priv->pf_pd) {
224 			psb_mmu_free_pagedir(dev_priv->pf_pd);
225 			dev_priv->pf_pd = NULL;
226 		}
227 		if (dev_priv->mmu) {
228 			struct psb_gtt *pg = &dev_priv->gtt;
229 
230 			down_read(&pg->sem);
231 			psb_mmu_remove_pfn_sequence(
232 				psb_mmu_get_default_pd
233 				(dev_priv->mmu),
234 				pg->mmu_gatt_start,
235 				dev_priv->vram_stolen_size >> PAGE_SHIFT);
236 			up_read(&pg->sem);
237 			psb_mmu_driver_takedown(dev_priv->mmu);
238 			dev_priv->mmu = NULL;
239 		}
240 		psb_gtt_takedown(dev);
241 		if (dev_priv->scratch_page) {
242 			set_pages_wb(dev_priv->scratch_page, 1);
243 			__free_page(dev_priv->scratch_page);
244 			dev_priv->scratch_page = NULL;
245 		}
246 		if (dev_priv->vdc_reg) {
247 			iounmap(dev_priv->vdc_reg);
248 			dev_priv->vdc_reg = NULL;
249 		}
250 		if (dev_priv->sgx_reg) {
251 			iounmap(dev_priv->sgx_reg);
252 			dev_priv->sgx_reg = NULL;
253 		}
254 		if (dev_priv->aux_reg) {
255 			iounmap(dev_priv->aux_reg);
256 			dev_priv->aux_reg = NULL;
257 		}
258 		if (dev_priv->aux_pdev)
259 			pci_dev_put(dev_priv->aux_pdev);
260 
261 		/* Destroy VBT data */
262 		psb_intel_destroy_bios(dev);
263 
264 		kfree(dev_priv);
265 		dev->dev_private = NULL;
266 	}
267 	gma_power_uninit(dev);
268 	return 0;
269 }
270 
271 
272 static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
273 {
274 	struct drm_psb_private *dev_priv;
275 	unsigned long resource_start, resource_len;
276 	unsigned long irqflags;
277 	int ret = -ENOMEM;
278 	struct drm_connector *connector;
279 	struct gma_encoder *gma_encoder;
280 
281 	dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
282 	if (dev_priv == NULL)
283 		return -ENOMEM;
284 
285 	dev_priv->ops = (struct psb_ops *)chipset;
286 	dev_priv->dev = dev;
287 	dev->dev_private = (void *) dev_priv;
288 
289 	pci_set_master(dev->pdev);
290 
291 	dev_priv->num_pipe = dev_priv->ops->pipes;
292 
293 	resource_start = pci_resource_start(dev->pdev, PSB_MMIO_RESOURCE);
294 
295 	dev_priv->vdc_reg =
296 	    ioremap(resource_start + PSB_VDC_OFFSET, PSB_VDC_SIZE);
297 	if (!dev_priv->vdc_reg)
298 		goto out_err;
299 
300 	dev_priv->sgx_reg = ioremap(resource_start + dev_priv->ops->sgx_offset,
301 							PSB_SGX_SIZE);
302 	if (!dev_priv->sgx_reg)
303 		goto out_err;
304 
305 	if (IS_MRST(dev)) {
306 		dev_priv->aux_pdev = pci_get_bus_and_slot(0, PCI_DEVFN(3, 0));
307 
308 		if (dev_priv->aux_pdev) {
309 			resource_start = pci_resource_start(dev_priv->aux_pdev,
310 							    PSB_AUX_RESOURCE);
311 			resource_len = pci_resource_len(dev_priv->aux_pdev,
312 							PSB_AUX_RESOURCE);
313 			dev_priv->aux_reg = ioremap_nocache(resource_start,
314 							    resource_len);
315 			if (!dev_priv->aux_reg)
316 				goto out_err;
317 
318 			DRM_DEBUG_KMS("Found aux vdc");
319 		} else {
320 			/* Couldn't find the aux vdc so map to primary vdc */
321 			dev_priv->aux_reg = dev_priv->vdc_reg;
322 			DRM_DEBUG_KMS("Couldn't find aux pci device");
323 		}
324 		dev_priv->gmbus_reg = dev_priv->aux_reg;
325 	} else {
326 		dev_priv->gmbus_reg = dev_priv->vdc_reg;
327 	}
328 
329 	psb_intel_opregion_setup(dev);
330 
331 	ret = dev_priv->ops->chip_setup(dev);
332 	if (ret)
333 		goto out_err;
334 
335 	/* Init OSPM support */
336 	gma_power_init(dev);
337 
338 	ret = -ENOMEM;
339 
340 	dev_priv->scratch_page = alloc_page(GFP_DMA32 | __GFP_ZERO);
341 	if (!dev_priv->scratch_page)
342 		goto out_err;
343 
344 	set_pages_uc(dev_priv->scratch_page, 1);
345 
346 	ret = psb_gtt_init(dev, 0);
347 	if (ret)
348 		goto out_err;
349 
350 	dev_priv->mmu = psb_mmu_driver_init((void *)0,
351 					drm_psb_trap_pagefaults, 0,
352 					dev_priv);
353 	if (!dev_priv->mmu)
354 		goto out_err;
355 
356 	dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0);
357 	if (!dev_priv->pf_pd)
358 		goto out_err;
359 
360 	psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0);
361 	psb_mmu_set_pd_context(dev_priv->pf_pd, 1);
362 
363 	ret = psb_do_init(dev);
364 	if (ret)
365 		return ret;
366 
367 	PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE);
368 	PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE);
369 
370 	acpi_video_register();
371 
372 	ret = drm_vblank_init(dev, dev_priv->num_pipe);
373 	if (ret)
374 		goto out_err;
375 
376 	/*
377 	 * Install interrupt handlers prior to powering off SGX or else we will
378 	 * crash.
379 	 */
380 	dev_priv->vdc_irq_mask = 0;
381 	dev_priv->pipestat[0] = 0;
382 	dev_priv->pipestat[1] = 0;
383 	dev_priv->pipestat[2] = 0;
384 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
385 	PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
386 	PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R);
387 	PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R);
388 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
389 
390 	drm_irq_install(dev);
391 
392 	dev->vblank_disable_allowed = true;
393 
394 	dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
395 
396 	dev->driver->get_vblank_counter = psb_get_vblank_counter;
397 
398 	psb_modeset_init(dev);
399 	psb_fbdev_init(dev);
400 	drm_kms_helper_poll_init(dev);
401 
402 	/* Only add backlight support if we have LVDS output */
403 	list_for_each_entry(connector, &dev->mode_config.connector_list,
404 			    head) {
405 		gma_encoder = gma_attached_encoder(connector);
406 
407 		switch (gma_encoder->type) {
408 		case INTEL_OUTPUT_LVDS:
409 		case INTEL_OUTPUT_MIPI:
410 			ret = gma_backlight_init(dev);
411 			break;
412 		}
413 	}
414 
415 	if (ret)
416 		return ret;
417 	psb_intel_opregion_enable_asle(dev);
418 #if 0
419 	/*enable runtime pm at last*/
420 	pm_runtime_enable(&dev->pdev->dev);
421 	pm_runtime_set_active(&dev->pdev->dev);
422 #endif
423 	/*Intel drm driver load is done, continue doing pvr load*/
424 	return 0;
425 out_err:
426 	psb_driver_unload(dev);
427 	return ret;
428 }
429 
430 static int psb_driver_device_is_agp(struct drm_device *dev)
431 {
432 	return 0;
433 }
434 
435 static inline void get_brightness(struct backlight_device *bd)
436 {
437 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
438 	if (bd) {
439 		bd->props.brightness = bd->ops->get_brightness(bd);
440 		backlight_update_status(bd);
441 	}
442 #endif
443 }
444 
445 static int psb_dpst_bl_ioctl(struct drm_device *dev, void *data,
446 		       struct drm_file *file_priv)
447 {
448 	struct drm_psb_private *dev_priv = psb_priv(dev);
449 	uint32_t *arg = data;
450 
451 	dev_priv->blc_adj2 = *arg;
452 	get_brightness(dev_priv->backlight_device);
453 	return 0;
454 }
455 
456 static int psb_adb_ioctl(struct drm_device *dev, void *data,
457 			struct drm_file *file_priv)
458 {
459 	struct drm_psb_private *dev_priv = psb_priv(dev);
460 	uint32_t *arg = data;
461 
462 	dev_priv->blc_adj1 = *arg;
463 	get_brightness(dev_priv->backlight_device);
464 	return 0;
465 }
466 
467 static int psb_gamma_ioctl(struct drm_device *dev, void *data,
468 			   struct drm_file *file_priv)
469 {
470 	struct drm_psb_dpst_lut_arg *lut_arg = data;
471 	struct drm_mode_object *obj;
472 	struct drm_crtc *crtc;
473 	struct drm_connector *connector;
474 	struct gma_crtc *gma_crtc;
475 	int i = 0;
476 	int32_t obj_id;
477 
478 	obj_id = lut_arg->output_id;
479 	obj = drm_mode_object_find(dev, obj_id, DRM_MODE_OBJECT_CONNECTOR);
480 	if (!obj) {
481 		dev_dbg(dev->dev, "Invalid Connector object.\n");
482 		return -ENOENT;
483 	}
484 
485 	connector = obj_to_connector(obj);
486 	crtc = connector->encoder->crtc;
487 	gma_crtc = to_gma_crtc(crtc);
488 
489 	for (i = 0; i < 256; i++)
490 		gma_crtc->lut_adj[i] = lut_arg->lut[i];
491 
492 	gma_crtc_load_lut(crtc);
493 
494 	return 0;
495 }
496 
497 static int psb_mode_operation_ioctl(struct drm_device *dev, void *data,
498 				struct drm_file *file_priv)
499 {
500 	uint32_t obj_id;
501 	uint16_t op;
502 	struct drm_mode_modeinfo *umode;
503 	struct drm_display_mode *mode = NULL;
504 	struct drm_psb_mode_operation_arg *arg;
505 	struct drm_mode_object *obj;
506 	struct drm_connector *connector;
507 	struct drm_connector_helper_funcs *connector_funcs;
508 	int ret = 0;
509 	int resp = MODE_OK;
510 
511 	arg = (struct drm_psb_mode_operation_arg *)data;
512 	obj_id = arg->obj_id;
513 	op = arg->operation;
514 
515 	switch (op) {
516 	case PSB_MODE_OPERATION_MODE_VALID:
517 		umode = &arg->mode;
518 
519 		drm_modeset_lock_all(dev);
520 
521 		obj = drm_mode_object_find(dev, obj_id,
522 					DRM_MODE_OBJECT_CONNECTOR);
523 		if (!obj) {
524 			ret = -ENOENT;
525 			goto mode_op_out;
526 		}
527 
528 		connector = obj_to_connector(obj);
529 
530 		mode = drm_mode_create(dev);
531 		if (!mode) {
532 			ret = -ENOMEM;
533 			goto mode_op_out;
534 		}
535 
536 		/* drm_crtc_convert_umode(mode, umode); */
537 		{
538 			mode->clock = umode->clock;
539 			mode->hdisplay = umode->hdisplay;
540 			mode->hsync_start = umode->hsync_start;
541 			mode->hsync_end = umode->hsync_end;
542 			mode->htotal = umode->htotal;
543 			mode->hskew = umode->hskew;
544 			mode->vdisplay = umode->vdisplay;
545 			mode->vsync_start = umode->vsync_start;
546 			mode->vsync_end = umode->vsync_end;
547 			mode->vtotal = umode->vtotal;
548 			mode->vscan = umode->vscan;
549 			mode->vrefresh = umode->vrefresh;
550 			mode->flags = umode->flags;
551 			mode->type = umode->type;
552 			strncpy(mode->name, umode->name, DRM_DISPLAY_MODE_LEN);
553 			mode->name[DRM_DISPLAY_MODE_LEN-1] = 0;
554 		}
555 
556 		connector_funcs = (struct drm_connector_helper_funcs *)
557 				   connector->helper_private;
558 
559 		if (connector_funcs->mode_valid) {
560 			resp = connector_funcs->mode_valid(connector, mode);
561 			arg->data = resp;
562 		}
563 
564 		/*do some clean up work*/
565 		if (mode)
566 			drm_mode_destroy(dev, mode);
567 mode_op_out:
568 		drm_modeset_unlock_all(dev);
569 		return ret;
570 
571 	default:
572 		dev_dbg(dev->dev, "Unsupported psb mode operation\n");
573 		return -EOPNOTSUPP;
574 	}
575 
576 	return 0;
577 }
578 
579 static int psb_stolen_memory_ioctl(struct drm_device *dev, void *data,
580 				   struct drm_file *file_priv)
581 {
582 	struct drm_psb_private *dev_priv = psb_priv(dev);
583 	struct drm_psb_stolen_memory_arg *arg = data;
584 
585 	arg->base = dev_priv->stolen_base;
586 	arg->size = dev_priv->vram_stolen_size;
587 
588 	return 0;
589 }
590 
591 static int psb_driver_open(struct drm_device *dev, struct drm_file *priv)
592 {
593 	return 0;
594 }
595 
596 static void psb_driver_close(struct drm_device *dev, struct drm_file *priv)
597 {
598 }
599 
600 static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
601 			       unsigned long arg)
602 {
603 	struct drm_file *file_priv = filp->private_data;
604 	struct drm_device *dev = file_priv->minor->dev;
605 	struct drm_psb_private *dev_priv = dev->dev_private;
606 	static unsigned int runtime_allowed;
607 
608 	if (runtime_allowed == 1 && dev_priv->is_lvds_on) {
609 		runtime_allowed++;
610 		pm_runtime_allow(&dev->pdev->dev);
611 		dev_priv->rpm_enabled = 1;
612 	}
613 	return drm_ioctl(filp, cmd, arg);
614 	/* FIXME: do we need to wrap the other side of this */
615 }
616 
617 
618 /* When a client dies:
619  *    - Check for and clean up flipped page state
620  */
621 static void psb_driver_preclose(struct drm_device *dev, struct drm_file *priv)
622 {
623 }
624 
625 static void psb_remove(struct pci_dev *pdev)
626 {
627 	struct drm_device *dev = pci_get_drvdata(pdev);
628 	drm_put_dev(dev);
629 }
630 
631 static const struct dev_pm_ops psb_pm_ops = {
632 	.resume = gma_power_resume,
633 	.suspend = gma_power_suspend,
634 	.thaw = gma_power_thaw,
635 	.freeze = gma_power_freeze,
636 	.restore = gma_power_restore,
637 	.runtime_suspend = psb_runtime_suspend,
638 	.runtime_resume = psb_runtime_resume,
639 	.runtime_idle = psb_runtime_idle,
640 };
641 
642 static const struct vm_operations_struct psb_gem_vm_ops = {
643 	.fault = psb_gem_fault,
644 	.open = drm_gem_vm_open,
645 	.close = drm_gem_vm_close,
646 };
647 
648 static const struct file_operations psb_gem_fops = {
649 	.owner = THIS_MODULE,
650 	.open = drm_open,
651 	.release = drm_release,
652 	.unlocked_ioctl = psb_unlocked_ioctl,
653 	.mmap = drm_gem_mmap,
654 	.poll = drm_poll,
655 	.read = drm_read,
656 };
657 
658 static struct drm_driver driver = {
659 	.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | \
660 			   DRIVER_MODESET | DRIVER_GEM ,
661 	.load = psb_driver_load,
662 	.unload = psb_driver_unload,
663 
664 	.ioctls = psb_ioctls,
665 	.num_ioctls = DRM_ARRAY_SIZE(psb_ioctls),
666 	.device_is_agp = psb_driver_device_is_agp,
667 	.irq_preinstall = psb_irq_preinstall,
668 	.irq_postinstall = psb_irq_postinstall,
669 	.irq_uninstall = psb_irq_uninstall,
670 	.irq_handler = psb_irq_handler,
671 	.enable_vblank = psb_enable_vblank,
672 	.disable_vblank = psb_disable_vblank,
673 	.get_vblank_counter = psb_get_vblank_counter,
674 	.lastclose = psb_lastclose,
675 	.open = psb_driver_open,
676 	.preclose = psb_driver_preclose,
677 	.postclose = psb_driver_close,
678 
679 	.gem_free_object = psb_gem_free_object,
680 	.gem_vm_ops = &psb_gem_vm_ops,
681 	.dumb_create = psb_gem_dumb_create,
682 	.dumb_map_offset = psb_gem_dumb_map_gtt,
683 	.dumb_destroy = drm_gem_dumb_destroy,
684 	.fops = &psb_gem_fops,
685 	.name = DRIVER_NAME,
686 	.desc = DRIVER_DESC,
687 	.date = PSB_DRM_DRIVER_DATE,
688 	.major = PSB_DRM_DRIVER_MAJOR,
689 	.minor = PSB_DRM_DRIVER_MINOR,
690 	.patchlevel = PSB_DRM_DRIVER_PATCHLEVEL
691 };
692 
693 static struct pci_driver psb_pci_driver = {
694 	.name = DRIVER_NAME,
695 	.id_table = pciidlist,
696 	.probe = psb_probe,
697 	.remove = psb_remove,
698 	.driver = {
699 		.pm = &psb_pm_ops,
700 	}
701 };
702 
703 static int psb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
704 {
705 	return drm_get_pci_dev(pdev, ent, &driver);
706 }
707 
708 static int __init psb_init(void)
709 {
710 	return drm_pci_init(&driver, &psb_pci_driver);
711 }
712 
713 static void __exit psb_exit(void)
714 {
715 	drm_pci_exit(&driver, &psb_pci_driver);
716 }
717 
718 late_initcall(psb_init);
719 module_exit(psb_exit);
720 
721 MODULE_AUTHOR("Alan Cox <alan@linux.intel.com> and others");
722 MODULE_DESCRIPTION(DRIVER_DESC);
723 MODULE_LICENSE("GPL");
724