WIP FPC-III support
[linux/fpc-iii.git] / drivers / gpu / drm / gma500 / psb_drv.c
blobcc2d59e8471da5549a3979c6160147f87b1e8d5b
1 // SPDX-License-Identifier: GPL-2.0-only
2 /**************************************************************************
3 * Copyright (c) 2007-2011, Intel Corporation.
4 * All Rights Reserved.
5 * Copyright (c) 2008, Tungsten Graphics, Inc. Cedar Park, TX., USA.
6 * All Rights Reserved.
8 **************************************************************************/
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>
16 #include <asm/set_memory.h>
18 #include <acpi/video.h>
20 #include <drm/drm.h>
21 #include <drm/drm_drv.h>
22 #include <drm/drm_fb_helper.h>
23 #include <drm/drm_file.h>
24 #include <drm/drm_ioctl.h>
25 #include <drm/drm_irq.h>
26 #include <drm/drm_pciids.h>
27 #include <drm/drm_vblank.h>
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_reg.h"
37 static const struct drm_driver driver;
38 static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
41 * The table below contains a mapping of the PCI vendor ID and the PCI Device ID
42 * to the different groups of PowerVR 5-series chip designs
44 * 0x8086 = Intel Corporation
46 * PowerVR SGX535 - Poulsbo - Intel GMA 500, Intel Atom Z5xx
47 * PowerVR SGX535 - Moorestown - Intel GMA 600
48 * PowerVR SGX535 - Oaktrail - Intel GMA 600, Intel Atom Z6xx, E6xx
49 * PowerVR SGX540 - Medfield - Intel Atom Z2460
50 * PowerVR SGX544MP2 - Medfield -
51 * PowerVR SGX545 - Cedartrail - Intel GMA 3600, Intel Atom D2500, N2600
52 * PowerVR SGX545 - Cedartrail - Intel GMA 3650, Intel Atom D2550, D2700,
53 * N2800
55 static const struct pci_device_id pciidlist[] = {
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 #if defined(CONFIG_DRM_GMA600)
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 #endif
69 #if defined(CONFIG_DRM_MEDFIELD)
70 { 0x8086, 0x0130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
71 { 0x8086, 0x0131, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
72 { 0x8086, 0x0132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
73 { 0x8086, 0x0133, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
74 { 0x8086, 0x0134, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
75 { 0x8086, 0x0135, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
76 { 0x8086, 0x0136, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
77 { 0x8086, 0x0137, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
78 #endif
79 #if defined(CONFIG_DRM_GMA3600)
80 { 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
81 { 0x8086, 0x0be1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
82 { 0x8086, 0x0be2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
83 { 0x8086, 0x0be3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
84 { 0x8086, 0x0be4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
85 { 0x8086, 0x0be5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
86 { 0x8086, 0x0be6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
87 { 0x8086, 0x0be7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
88 { 0x8086, 0x0be8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
89 { 0x8086, 0x0be9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
90 { 0x8086, 0x0bea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
91 { 0x8086, 0x0beb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
92 { 0x8086, 0x0bec, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
93 { 0x8086, 0x0bed, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
94 { 0x8086, 0x0bee, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
95 { 0x8086, 0x0bef, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
96 #endif
97 { 0, }
99 MODULE_DEVICE_TABLE(pci, pciidlist);
102 * Standard IOCTLs.
104 static const struct drm_ioctl_desc psb_ioctls[] = {
107 static int psb_do_init(struct drm_device *dev)
109 struct drm_psb_private *dev_priv = dev->dev_private;
110 struct psb_gtt *pg = &dev_priv->gtt;
112 uint32_t stolen_gtt;
114 if (pg->mmu_gatt_start & 0x0FFFFFFF) {
115 dev_err(dev->dev, "Gatt must be 256M aligned. This is a bug.\n");
116 return -EINVAL;
119 stolen_gtt = (pg->stolen_size >> PAGE_SHIFT) * 4;
120 stolen_gtt = (stolen_gtt + PAGE_SIZE - 1) >> PAGE_SHIFT;
121 stolen_gtt = (stolen_gtt < pg->gtt_pages) ? stolen_gtt : pg->gtt_pages;
123 dev_priv->gatt_free_offset = pg->mmu_gatt_start +
124 (stolen_gtt << PAGE_SHIFT) * 1024;
126 spin_lock_init(&dev_priv->irqmask_lock);
128 PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0);
129 PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1);
130 PSB_RSGX32(PSB_CR_BIF_BANK1);
132 /* Do not bypass any MMU access, let them pagefault instead */
133 PSB_WSGX32((PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_MMU_ER_MASK),
134 PSB_CR_BIF_CTRL);
135 PSB_RSGX32(PSB_CR_BIF_CTRL);
137 psb_spank(dev_priv);
139 /* mmu_gatt ?? */
140 PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
141 PSB_RSGX32(PSB_CR_BIF_TWOD_REQ_BASE); /* Post */
143 return 0;
146 static void psb_driver_unload(struct drm_device *dev)
148 struct drm_psb_private *dev_priv = dev->dev_private;
150 /* TODO: Kill vblank etc here */
152 if (dev_priv) {
153 if (dev_priv->backlight_device)
154 gma_backlight_exit(dev);
155 psb_modeset_cleanup(dev);
157 if (dev_priv->ops->chip_teardown)
158 dev_priv->ops->chip_teardown(dev);
160 psb_intel_opregion_fini(dev);
162 if (dev_priv->pf_pd) {
163 psb_mmu_free_pagedir(dev_priv->pf_pd);
164 dev_priv->pf_pd = NULL;
166 if (dev_priv->mmu) {
167 struct psb_gtt *pg = &dev_priv->gtt;
169 down_read(&pg->sem);
170 psb_mmu_remove_pfn_sequence(
171 psb_mmu_get_default_pd
172 (dev_priv->mmu),
173 pg->mmu_gatt_start,
174 dev_priv->vram_stolen_size >> PAGE_SHIFT);
175 up_read(&pg->sem);
176 psb_mmu_driver_takedown(dev_priv->mmu);
177 dev_priv->mmu = NULL;
179 psb_gtt_takedown(dev);
180 if (dev_priv->scratch_page) {
181 set_pages_wb(dev_priv->scratch_page, 1);
182 __free_page(dev_priv->scratch_page);
183 dev_priv->scratch_page = NULL;
185 if (dev_priv->vdc_reg) {
186 iounmap(dev_priv->vdc_reg);
187 dev_priv->vdc_reg = NULL;
189 if (dev_priv->sgx_reg) {
190 iounmap(dev_priv->sgx_reg);
191 dev_priv->sgx_reg = NULL;
193 if (dev_priv->aux_reg) {
194 iounmap(dev_priv->aux_reg);
195 dev_priv->aux_reg = NULL;
197 pci_dev_put(dev_priv->aux_pdev);
198 pci_dev_put(dev_priv->lpc_pdev);
200 /* Destroy VBT data */
201 psb_intel_destroy_bios(dev);
203 kfree(dev_priv);
204 dev->dev_private = NULL;
206 gma_power_uninit(dev);
209 static int psb_driver_load(struct drm_device *dev, unsigned long flags)
211 struct drm_psb_private *dev_priv;
212 unsigned long resource_start, resource_len;
213 unsigned long irqflags;
214 int ret = -ENOMEM;
215 struct drm_connector *connector;
216 struct gma_encoder *gma_encoder;
217 struct psb_gtt *pg;
219 /* allocating and initializing driver private data */
220 dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
221 if (dev_priv == NULL)
222 return -ENOMEM;
224 dev_priv->ops = (struct psb_ops *)flags;
225 dev_priv->dev = dev;
226 dev->dev_private = (void *) dev_priv;
228 pg = &dev_priv->gtt;
230 pci_set_master(dev->pdev);
232 dev_priv->num_pipe = dev_priv->ops->pipes;
234 resource_start = pci_resource_start(dev->pdev, PSB_MMIO_RESOURCE);
236 dev_priv->vdc_reg =
237 ioremap(resource_start + PSB_VDC_OFFSET, PSB_VDC_SIZE);
238 if (!dev_priv->vdc_reg)
239 goto out_err;
241 dev_priv->sgx_reg = ioremap(resource_start + dev_priv->ops->sgx_offset,
242 PSB_SGX_SIZE);
243 if (!dev_priv->sgx_reg)
244 goto out_err;
246 if (IS_MRST(dev)) {
247 int domain = pci_domain_nr(dev->pdev->bus);
249 dev_priv->aux_pdev =
250 pci_get_domain_bus_and_slot(domain, 0,
251 PCI_DEVFN(3, 0));
253 if (dev_priv->aux_pdev) {
254 resource_start = pci_resource_start(dev_priv->aux_pdev,
255 PSB_AUX_RESOURCE);
256 resource_len = pci_resource_len(dev_priv->aux_pdev,
257 PSB_AUX_RESOURCE);
258 dev_priv->aux_reg = ioremap(resource_start,
259 resource_len);
260 if (!dev_priv->aux_reg)
261 goto out_err;
263 DRM_DEBUG_KMS("Found aux vdc");
264 } else {
265 /* Couldn't find the aux vdc so map to primary vdc */
266 dev_priv->aux_reg = dev_priv->vdc_reg;
267 DRM_DEBUG_KMS("Couldn't find aux pci device");
269 dev_priv->gmbus_reg = dev_priv->aux_reg;
271 dev_priv->lpc_pdev =
272 pci_get_domain_bus_and_slot(domain, 0,
273 PCI_DEVFN(31, 0));
274 if (dev_priv->lpc_pdev) {
275 pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,
276 &dev_priv->lpc_gpio_base);
277 pci_write_config_dword(dev_priv->lpc_pdev, PSB_LPC_GBA,
278 (u32)dev_priv->lpc_gpio_base | (1L<<31));
279 pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,
280 &dev_priv->lpc_gpio_base);
281 dev_priv->lpc_gpio_base &= 0xffc0;
282 if (dev_priv->lpc_gpio_base)
283 DRM_DEBUG_KMS("Found LPC GPIO at 0x%04x\n",
284 dev_priv->lpc_gpio_base);
285 else {
286 pci_dev_put(dev_priv->lpc_pdev);
287 dev_priv->lpc_pdev = NULL;
290 } else {
291 dev_priv->gmbus_reg = dev_priv->vdc_reg;
294 psb_intel_opregion_setup(dev);
296 ret = dev_priv->ops->chip_setup(dev);
297 if (ret)
298 goto out_err;
300 /* Init OSPM support */
301 gma_power_init(dev);
303 ret = -ENOMEM;
305 dev_priv->scratch_page = alloc_page(GFP_DMA32 | __GFP_ZERO);
306 if (!dev_priv->scratch_page)
307 goto out_err;
309 set_pages_uc(dev_priv->scratch_page, 1);
311 ret = psb_gtt_init(dev, 0);
312 if (ret)
313 goto out_err;
315 dev_priv->mmu = psb_mmu_driver_init(dev, 1, 0, 0);
316 if (!dev_priv->mmu)
317 goto out_err;
319 dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0);
320 if (!dev_priv->pf_pd)
321 goto out_err;
323 ret = psb_do_init(dev);
324 if (ret)
325 return ret;
327 /* Add stolen memory to SGX MMU */
328 down_read(&pg->sem);
329 ret = psb_mmu_insert_pfn_sequence(psb_mmu_get_default_pd(dev_priv->mmu),
330 dev_priv->stolen_base >> PAGE_SHIFT,
331 pg->gatt_start,
332 pg->stolen_size >> PAGE_SHIFT, 0);
333 up_read(&pg->sem);
335 psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0);
336 psb_mmu_set_pd_context(dev_priv->pf_pd, 1);
338 PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE);
339 PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE);
341 acpi_video_register();
343 /* Setup vertical blanking handling */
344 ret = drm_vblank_init(dev, dev_priv->num_pipe);
345 if (ret)
346 goto out_err;
349 * Install interrupt handlers prior to powering off SGX or else we will
350 * crash.
352 dev_priv->vdc_irq_mask = 0;
353 dev_priv->pipestat[0] = 0;
354 dev_priv->pipestat[1] = 0;
355 dev_priv->pipestat[2] = 0;
356 spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
357 PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
358 PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R);
359 PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R);
360 spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
362 drm_irq_install(dev, dev->pdev->irq);
364 dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
366 psb_modeset_init(dev);
367 psb_fbdev_init(dev);
368 drm_kms_helper_poll_init(dev);
370 /* Only add backlight support if we have LVDS output */
371 list_for_each_entry(connector, &dev->mode_config.connector_list,
372 head) {
373 gma_encoder = gma_attached_encoder(connector);
375 switch (gma_encoder->type) {
376 case INTEL_OUTPUT_LVDS:
377 case INTEL_OUTPUT_MIPI:
378 ret = gma_backlight_init(dev);
379 break;
383 if (ret)
384 return ret;
385 psb_intel_opregion_enable_asle(dev);
386 #if 0
387 /* Enable runtime pm at last */
388 pm_runtime_enable(&dev->pdev->dev);
389 pm_runtime_set_active(&dev->pdev->dev);
390 #endif
391 /* Intel drm driver load is done, continue doing pvr load */
392 return 0;
393 out_err:
394 psb_driver_unload(dev);
395 return ret;
398 static inline void get_brightness(struct backlight_device *bd)
400 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
401 if (bd) {
402 bd->props.brightness = bd->ops->get_brightness(bd);
403 backlight_update_status(bd);
405 #endif
408 static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
409 unsigned long arg)
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;
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;
421 return drm_ioctl(filp, cmd, arg);
422 /* FIXME: do we need to wrap the other side of this */
425 static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
427 struct drm_device *dev;
428 int ret;
430 ret = pci_enable_device(pdev);
431 if (ret)
432 return ret;
434 dev = drm_dev_alloc(&driver, &pdev->dev);
435 if (IS_ERR(dev)) {
436 ret = PTR_ERR(dev);
437 goto err_pci_disable_device;
440 dev->pdev = pdev;
441 pci_set_drvdata(pdev, dev);
443 ret = psb_driver_load(dev, ent->driver_data);
444 if (ret)
445 goto err_drm_dev_put;
447 ret = drm_dev_register(dev, ent->driver_data);
448 if (ret)
449 goto err_psb_driver_unload;
451 return 0;
453 err_psb_driver_unload:
454 psb_driver_unload(dev);
455 err_drm_dev_put:
456 drm_dev_put(dev);
457 err_pci_disable_device:
458 pci_disable_device(pdev);
459 return ret;
462 static void psb_pci_remove(struct pci_dev *pdev)
464 struct drm_device *dev = pci_get_drvdata(pdev);
466 drm_dev_unregister(dev);
467 psb_driver_unload(dev);
468 drm_dev_put(dev);
471 static const struct dev_pm_ops psb_pm_ops = {
472 .resume = gma_power_resume,
473 .suspend = gma_power_suspend,
474 .thaw = gma_power_thaw,
475 .freeze = gma_power_freeze,
476 .restore = gma_power_restore,
477 .runtime_suspend = psb_runtime_suspend,
478 .runtime_resume = psb_runtime_resume,
479 .runtime_idle = psb_runtime_idle,
482 static const struct file_operations psb_gem_fops = {
483 .owner = THIS_MODULE,
484 .open = drm_open,
485 .release = drm_release,
486 .unlocked_ioctl = psb_unlocked_ioctl,
487 .compat_ioctl = drm_compat_ioctl,
488 .mmap = drm_gem_mmap,
489 .poll = drm_poll,
490 .read = drm_read,
493 static const struct drm_driver driver = {
494 .driver_features = DRIVER_MODESET | DRIVER_GEM,
495 .lastclose = drm_fb_helper_lastclose,
497 .num_ioctls = ARRAY_SIZE(psb_ioctls),
498 .irq_preinstall = psb_irq_preinstall,
499 .irq_postinstall = psb_irq_postinstall,
500 .irq_uninstall = psb_irq_uninstall,
501 .irq_handler = psb_irq_handler,
503 .dumb_create = psb_gem_dumb_create,
504 .ioctls = psb_ioctls,
505 .fops = &psb_gem_fops,
506 .name = DRIVER_NAME,
507 .desc = DRIVER_DESC,
508 .date = DRIVER_DATE,
509 .major = DRIVER_MAJOR,
510 .minor = DRIVER_MINOR,
511 .patchlevel = DRIVER_PATCHLEVEL
514 static struct pci_driver psb_pci_driver = {
515 .name = DRIVER_NAME,
516 .id_table = pciidlist,
517 .probe = psb_pci_probe,
518 .remove = psb_pci_remove,
519 .driver.pm = &psb_pm_ops,
522 static int __init psb_init(void)
524 return pci_register_driver(&psb_pci_driver);
527 static void __exit psb_exit(void)
529 pci_unregister_driver(&psb_pci_driver);
532 late_initcall(psb_init);
533 module_exit(psb_exit);
535 MODULE_AUTHOR(DRIVER_AUTHOR);
536 MODULE_DESCRIPTION(DRIVER_DESC);
537 MODULE_LICENSE("GPL");