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10#include <linux/cpu.h>
11#include <linux/module.h>
12#include <linux/notifier.h>
13#include <linux/pm_runtime.h>
14#include <linux/spinlock.h>
15#include <linux/delay.h>
16
17#include <asm/set_memory.h>
18
19#include <acpi/video.h>
20
21#include <drm/drm.h>
22#include <drm/drm_drv.h>
23#include <drm/drm_fb_helper.h>
24#include <drm/drm_file.h>
25#include <drm/drm_ioctl.h>
26#include <drm/drm_pciids.h>
27#include <drm/drm_vblank.h>
28
29#include "framebuffer.h"
30#include "intel_bios.h"
31#include "mid_bios.h"
32#include "power.h"
33#include "psb_drv.h"
34#include "psb_intel_reg.h"
35#include "psb_irq.h"
36#include "psb_reg.h"
37
38static const struct drm_driver driver;
39static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
40
41
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46
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48
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51
52
53
54static const struct pci_device_id pciidlist[] = {
55
56 { 0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
57 { 0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
58
59 { 0x8086, 0x4100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
60 { 0x8086, 0x4101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
61 { 0x8086, 0x4102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
62 { 0x8086, 0x4103, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
63 { 0x8086, 0x4104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
64 { 0x8086, 0x4105, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
65 { 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
66 { 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
67 { 0x8086, 0x4108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
68
69 { 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
70 { 0x8086, 0x0be1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
71 { 0x8086, 0x0be2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
72 { 0x8086, 0x0be3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
73 { 0x8086, 0x0be4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
74 { 0x8086, 0x0be5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
75 { 0x8086, 0x0be6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
76 { 0x8086, 0x0be7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
77 { 0x8086, 0x0be8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
78 { 0x8086, 0x0be9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
79 { 0x8086, 0x0bea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
80 { 0x8086, 0x0beb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
81 { 0x8086, 0x0bec, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
82 { 0x8086, 0x0bed, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
83 { 0x8086, 0x0bee, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
84 { 0x8086, 0x0bef, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
85 { 0, }
86};
87MODULE_DEVICE_TABLE(pci, pciidlist);
88
89
90
91
92static const struct drm_ioctl_desc psb_ioctls[] = {
93};
94
95
96
97
98
99
100
101void psb_spank(struct drm_psb_private *dev_priv)
102{
103 PSB_WSGX32(_PSB_CS_RESET_BIF_RESET | _PSB_CS_RESET_DPM_RESET |
104 _PSB_CS_RESET_TA_RESET | _PSB_CS_RESET_USE_RESET |
105 _PSB_CS_RESET_ISP_RESET | _PSB_CS_RESET_TSP_RESET |
106 _PSB_CS_RESET_TWOD_RESET, PSB_CR_SOFT_RESET);
107 PSB_RSGX32(PSB_CR_SOFT_RESET);
108
109 msleep(1);
110
111 PSB_WSGX32(0, PSB_CR_SOFT_RESET);
112 wmb();
113 PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) | _PSB_CB_CTRL_CLEAR_FAULT,
114 PSB_CR_BIF_CTRL);
115 wmb();
116 (void) PSB_RSGX32(PSB_CR_BIF_CTRL);
117
118 msleep(1);
119 PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_CB_CTRL_CLEAR_FAULT,
120 PSB_CR_BIF_CTRL);
121 (void) PSB_RSGX32(PSB_CR_BIF_CTRL);
122 PSB_WSGX32(dev_priv->gtt.gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
123}
124
125static int psb_do_init(struct drm_device *dev)
126{
127 struct drm_psb_private *dev_priv = dev->dev_private;
128 struct psb_gtt *pg = &dev_priv->gtt;
129
130 uint32_t stolen_gtt;
131
132 if (pg->mmu_gatt_start & 0x0FFFFFFF) {
133 dev_err(dev->dev, "Gatt must be 256M aligned. This is a bug.\n");
134 return -EINVAL;
135 }
136
137 stolen_gtt = (pg->stolen_size >> PAGE_SHIFT) * 4;
138 stolen_gtt = (stolen_gtt + PAGE_SIZE - 1) >> PAGE_SHIFT;
139 stolen_gtt = (stolen_gtt < pg->gtt_pages) ? stolen_gtt : pg->gtt_pages;
140
141 dev_priv->gatt_free_offset = pg->mmu_gatt_start +
142 (stolen_gtt << PAGE_SHIFT) * 1024;
143
144 spin_lock_init(&dev_priv->irqmask_lock);
145
146 PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0);
147 PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1);
148 PSB_RSGX32(PSB_CR_BIF_BANK1);
149
150
151 PSB_WSGX32((PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_MMU_ER_MASK),
152 PSB_CR_BIF_CTRL);
153 PSB_RSGX32(PSB_CR_BIF_CTRL);
154
155 psb_spank(dev_priv);
156
157
158 PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
159 PSB_RSGX32(PSB_CR_BIF_TWOD_REQ_BASE);
160
161 return 0;
162}
163
164static void psb_driver_unload(struct drm_device *dev)
165{
166 struct drm_psb_private *dev_priv = dev->dev_private;
167
168
169
170 if (dev_priv) {
171 if (dev_priv->backlight_device)
172 gma_backlight_exit(dev);
173 psb_modeset_cleanup(dev);
174
175 if (dev_priv->ops->chip_teardown)
176 dev_priv->ops->chip_teardown(dev);
177
178 psb_intel_opregion_fini(dev);
179
180 if (dev_priv->pf_pd) {
181 psb_mmu_free_pagedir(dev_priv->pf_pd);
182 dev_priv->pf_pd = NULL;
183 }
184 if (dev_priv->mmu) {
185 struct psb_gtt *pg = &dev_priv->gtt;
186
187 down_read(&pg->sem);
188 psb_mmu_remove_pfn_sequence(
189 psb_mmu_get_default_pd
190 (dev_priv->mmu),
191 pg->mmu_gatt_start,
192 dev_priv->vram_stolen_size >> PAGE_SHIFT);
193 up_read(&pg->sem);
194 psb_mmu_driver_takedown(dev_priv->mmu);
195 dev_priv->mmu = NULL;
196 }
197 psb_gtt_takedown(dev);
198 if (dev_priv->scratch_page) {
199 set_pages_wb(dev_priv->scratch_page, 1);
200 __free_page(dev_priv->scratch_page);
201 dev_priv->scratch_page = NULL;
202 }
203 if (dev_priv->vdc_reg) {
204 iounmap(dev_priv->vdc_reg);
205 dev_priv->vdc_reg = NULL;
206 }
207 if (dev_priv->sgx_reg) {
208 iounmap(dev_priv->sgx_reg);
209 dev_priv->sgx_reg = NULL;
210 }
211 if (dev_priv->aux_reg) {
212 iounmap(dev_priv->aux_reg);
213 dev_priv->aux_reg = NULL;
214 }
215 pci_dev_put(dev_priv->aux_pdev);
216 pci_dev_put(dev_priv->lpc_pdev);
217
218
219 psb_intel_destroy_bios(dev);
220
221 kfree(dev_priv);
222 dev->dev_private = NULL;
223 }
224 gma_power_uninit(dev);
225}
226
227static int psb_driver_load(struct drm_device *dev, unsigned long flags)
228{
229 struct pci_dev *pdev = to_pci_dev(dev->dev);
230 struct drm_psb_private *dev_priv;
231 unsigned long resource_start, resource_len;
232 unsigned long irqflags;
233 int ret = -ENOMEM;
234 struct drm_connector *connector;
235 struct gma_encoder *gma_encoder;
236 struct psb_gtt *pg;
237
238
239 dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
240 if (dev_priv == NULL)
241 return -ENOMEM;
242
243 dev_priv->ops = (struct psb_ops *)flags;
244 dev_priv->dev = dev;
245 dev->dev_private = (void *) dev_priv;
246
247 pg = &dev_priv->gtt;
248
249 pci_set_master(pdev);
250
251 dev_priv->num_pipe = dev_priv->ops->pipes;
252
253 resource_start = pci_resource_start(pdev, PSB_MMIO_RESOURCE);
254
255 dev_priv->vdc_reg =
256 ioremap(resource_start + PSB_VDC_OFFSET, PSB_VDC_SIZE);
257 if (!dev_priv->vdc_reg)
258 goto out_err;
259
260 dev_priv->sgx_reg = ioremap(resource_start + dev_priv->ops->sgx_offset,
261 PSB_SGX_SIZE);
262 if (!dev_priv->sgx_reg)
263 goto out_err;
264
265 if (IS_MRST(dev)) {
266 int domain = pci_domain_nr(pdev->bus);
267
268 dev_priv->aux_pdev =
269 pci_get_domain_bus_and_slot(domain, 0,
270 PCI_DEVFN(3, 0));
271
272 if (dev_priv->aux_pdev) {
273 resource_start = pci_resource_start(dev_priv->aux_pdev,
274 PSB_AUX_RESOURCE);
275 resource_len = pci_resource_len(dev_priv->aux_pdev,
276 PSB_AUX_RESOURCE);
277 dev_priv->aux_reg = ioremap(resource_start,
278 resource_len);
279 if (!dev_priv->aux_reg)
280 goto out_err;
281
282 DRM_DEBUG_KMS("Found aux vdc");
283 } else {
284
285 dev_priv->aux_reg = dev_priv->vdc_reg;
286 DRM_DEBUG_KMS("Couldn't find aux pci device");
287 }
288 dev_priv->gmbus_reg = dev_priv->aux_reg;
289
290 dev_priv->lpc_pdev =
291 pci_get_domain_bus_and_slot(domain, 0,
292 PCI_DEVFN(31, 0));
293 if (dev_priv->lpc_pdev) {
294 pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,
295 &dev_priv->lpc_gpio_base);
296 pci_write_config_dword(dev_priv->lpc_pdev, PSB_LPC_GBA,
297 (u32)dev_priv->lpc_gpio_base | (1L<<31));
298 pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,
299 &dev_priv->lpc_gpio_base);
300 dev_priv->lpc_gpio_base &= 0xffc0;
301 if (dev_priv->lpc_gpio_base)
302 DRM_DEBUG_KMS("Found LPC GPIO at 0x%04x\n",
303 dev_priv->lpc_gpio_base);
304 else {
305 pci_dev_put(dev_priv->lpc_pdev);
306 dev_priv->lpc_pdev = NULL;
307 }
308 }
309 } else {
310 dev_priv->gmbus_reg = dev_priv->vdc_reg;
311 }
312
313 psb_intel_opregion_setup(dev);
314
315 ret = dev_priv->ops->chip_setup(dev);
316 if (ret)
317 goto out_err;
318
319
320 gma_power_init(dev);
321
322 ret = -ENOMEM;
323
324 dev_priv->scratch_page = alloc_page(GFP_DMA32 | __GFP_ZERO);
325 if (!dev_priv->scratch_page)
326 goto out_err;
327
328 set_pages_uc(dev_priv->scratch_page, 1);
329
330 ret = psb_gtt_init(dev, 0);
331 if (ret)
332 goto out_err;
333
334 ret = -ENOMEM;
335
336 dev_priv->mmu = psb_mmu_driver_init(dev, 1, 0, NULL);
337 if (!dev_priv->mmu)
338 goto out_err;
339
340 dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0);
341 if (!dev_priv->pf_pd)
342 goto out_err;
343
344 ret = psb_do_init(dev);
345 if (ret)
346 return ret;
347
348
349 down_read(&pg->sem);
350 ret = psb_mmu_insert_pfn_sequence(psb_mmu_get_default_pd(dev_priv->mmu),
351 dev_priv->stolen_base >> PAGE_SHIFT,
352 pg->gatt_start,
353 pg->stolen_size >> PAGE_SHIFT, 0);
354 up_read(&pg->sem);
355
356 psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0);
357 psb_mmu_set_pd_context(dev_priv->pf_pd, 1);
358
359 PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE);
360 PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE);
361
362 acpi_video_register();
363
364
365 ret = drm_vblank_init(dev, dev_priv->num_pipe);
366 if (ret)
367 goto out_err;
368
369
370
371
372
373 dev_priv->vdc_irq_mask = 0;
374 dev_priv->pipestat[0] = 0;
375 dev_priv->pipestat[1] = 0;
376 dev_priv->pipestat[2] = 0;
377 spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
378 PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
379 PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R);
380 PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R);
381 spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
382
383 psb_irq_install(dev, pdev->irq);
384
385 dev->max_vblank_count = 0xffffff;
386
387 psb_modeset_init(dev);
388 psb_fbdev_init(dev);
389 drm_kms_helper_poll_init(dev);
390
391
392 list_for_each_entry(connector, &dev->mode_config.connector_list,
393 head) {
394 gma_encoder = gma_attached_encoder(connector);
395
396 switch (gma_encoder->type) {
397 case INTEL_OUTPUT_LVDS:
398 case INTEL_OUTPUT_MIPI:
399 ret = gma_backlight_init(dev);
400 break;
401 }
402 }
403
404 if (ret)
405 return ret;
406 psb_intel_opregion_enable_asle(dev);
407#if 0
408
409 pm_runtime_enable(dev->dev);
410 pm_runtime_set_active(dev->dev);
411#endif
412
413 return 0;
414out_err:
415 psb_driver_unload(dev);
416 return ret;
417}
418
419static inline void get_brightness(struct backlight_device *bd)
420{
421#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
422 if (bd) {
423 bd->props.brightness = bd->ops->get_brightness(bd);
424 backlight_update_status(bd);
425 }
426#endif
427}
428
429static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
430 unsigned long arg)
431{
432 struct drm_file *file_priv = filp->private_data;
433 struct drm_device *dev = file_priv->minor->dev;
434 struct drm_psb_private *dev_priv = dev->dev_private;
435 static unsigned int runtime_allowed;
436
437 if (runtime_allowed == 1 && dev_priv->is_lvds_on) {
438 runtime_allowed++;
439 pm_runtime_allow(dev->dev);
440 dev_priv->rpm_enabled = 1;
441 }
442 return drm_ioctl(filp, cmd, arg);
443
444}
445
446static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
447{
448 struct drm_device *dev;
449 int ret;
450
451 ret = pci_enable_device(pdev);
452 if (ret)
453 return ret;
454
455 dev = drm_dev_alloc(&driver, &pdev->dev);
456 if (IS_ERR(dev)) {
457 ret = PTR_ERR(dev);
458 goto err_pci_disable_device;
459 }
460
461 pci_set_drvdata(pdev, dev);
462
463 ret = psb_driver_load(dev, ent->driver_data);
464 if (ret)
465 goto err_drm_dev_put;
466
467 ret = drm_dev_register(dev, ent->driver_data);
468 if (ret)
469 goto err_psb_driver_unload;
470
471 return 0;
472
473err_psb_driver_unload:
474 psb_driver_unload(dev);
475err_drm_dev_put:
476 drm_dev_put(dev);
477err_pci_disable_device:
478 pci_disable_device(pdev);
479 return ret;
480}
481
482static void psb_pci_remove(struct pci_dev *pdev)
483{
484 struct drm_device *dev = pci_get_drvdata(pdev);
485
486 drm_dev_unregister(dev);
487 psb_driver_unload(dev);
488 drm_dev_put(dev);
489}
490
491static const struct dev_pm_ops psb_pm_ops = {
492 .resume = gma_power_resume,
493 .suspend = gma_power_suspend,
494 .thaw = gma_power_thaw,
495 .freeze = gma_power_freeze,
496 .restore = gma_power_restore,
497 .runtime_suspend = psb_runtime_suspend,
498 .runtime_resume = psb_runtime_resume,
499 .runtime_idle = psb_runtime_idle,
500};
501
502static const struct file_operations psb_gem_fops = {
503 .owner = THIS_MODULE,
504 .open = drm_open,
505 .release = drm_release,
506 .unlocked_ioctl = psb_unlocked_ioctl,
507 .compat_ioctl = drm_compat_ioctl,
508 .mmap = drm_gem_mmap,
509 .poll = drm_poll,
510 .read = drm_read,
511};
512
513static const struct drm_driver driver = {
514 .driver_features = DRIVER_MODESET | DRIVER_GEM,
515 .lastclose = drm_fb_helper_lastclose,
516
517 .num_ioctls = ARRAY_SIZE(psb_ioctls),
518
519 .dumb_create = psb_gem_dumb_create,
520 .ioctls = psb_ioctls,
521 .fops = &psb_gem_fops,
522 .name = DRIVER_NAME,
523 .desc = DRIVER_DESC,
524 .date = DRIVER_DATE,
525 .major = DRIVER_MAJOR,
526 .minor = DRIVER_MINOR,
527 .patchlevel = DRIVER_PATCHLEVEL
528};
529
530static struct pci_driver psb_pci_driver = {
531 .name = DRIVER_NAME,
532 .id_table = pciidlist,
533 .probe = psb_pci_probe,
534 .remove = psb_pci_remove,
535 .driver.pm = &psb_pm_ops,
536};
537
538static int __init psb_init(void)
539{
540 return pci_register_driver(&psb_pci_driver);
541}
542
543static void __exit psb_exit(void)
544{
545 pci_unregister_driver(&psb_pci_driver);
546}
547
548late_initcall(psb_init);
549module_exit(psb_exit);
550
551MODULE_AUTHOR(DRIVER_AUTHOR);
552MODULE_DESCRIPTION(DRIVER_DESC);
553MODULE_LICENSE("GPL");
554
