1 /**************************************************************************
2 * Copyright (c) 2007-2011, Intel Corporation.
4 * Copyright (c) 2008, Tungsten Graphics, Inc. Cedar Park, TX., USA.
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.
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
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.
20 **************************************************************************/
25 #include "framebuffer.h"
27 #include "psb_intel_reg.h"
28 #include "intel_bios.h"
30 #include <drm/drm_pciids.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 #include <asm/set_memory.h>
40 static struct drm_driver driver
;
41 static int psb_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
);
44 * The table below contains a mapping of the PCI vendor ID and the PCI Device ID
45 * to the different groups of PowerVR 5-series chip designs
47 * 0x8086 = Intel Corporation
49 * PowerVR SGX535 - Poulsbo - Intel GMA 500, Intel Atom Z5xx
50 * PowerVR SGX535 - Moorestown - Intel GMA 600
51 * PowerVR SGX535 - Oaktrail - Intel GMA 600, Intel Atom Z6xx, E6xx
52 * PowerVR SGX540 - Medfield - Intel Atom Z2460
53 * PowerVR SGX544MP2 - Medfield -
54 * PowerVR SGX545 - Cedartrail - Intel GMA 3600, Intel Atom D2500, N2600
55 * PowerVR SGX545 - Cedartrail - Intel GMA 3650, Intel Atom D2550, D2700,
58 static const struct pci_device_id pciidlist
[] = {
59 { 0x8086, 0x8108, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &psb_chip_ops
},
60 { 0x8086, 0x8109, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &psb_chip_ops
},
61 #if defined(CONFIG_DRM_GMA600)
62 { 0x8086, 0x4100, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &oaktrail_chip_ops
},
63 { 0x8086, 0x4101, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &oaktrail_chip_ops
},
64 { 0x8086, 0x4102, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &oaktrail_chip_ops
},
65 { 0x8086, 0x4103, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &oaktrail_chip_ops
},
66 { 0x8086, 0x4104, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &oaktrail_chip_ops
},
67 { 0x8086, 0x4105, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &oaktrail_chip_ops
},
68 { 0x8086, 0x4106, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &oaktrail_chip_ops
},
69 { 0x8086, 0x4107, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &oaktrail_chip_ops
},
70 { 0x8086, 0x4108, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &oaktrail_chip_ops
},
72 #if defined(CONFIG_DRM_MEDFIELD)
73 { 0x8086, 0x0130, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &mdfld_chip_ops
},
74 { 0x8086, 0x0131, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &mdfld_chip_ops
},
75 { 0x8086, 0x0132, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &mdfld_chip_ops
},
76 { 0x8086, 0x0133, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &mdfld_chip_ops
},
77 { 0x8086, 0x0134, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &mdfld_chip_ops
},
78 { 0x8086, 0x0135, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &mdfld_chip_ops
},
79 { 0x8086, 0x0136, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &mdfld_chip_ops
},
80 { 0x8086, 0x0137, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &mdfld_chip_ops
},
82 #if defined(CONFIG_DRM_GMA3600)
83 { 0x8086, 0x0be0, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
84 { 0x8086, 0x0be1, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
85 { 0x8086, 0x0be2, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
86 { 0x8086, 0x0be3, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
87 { 0x8086, 0x0be4, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
88 { 0x8086, 0x0be5, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
89 { 0x8086, 0x0be6, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
90 { 0x8086, 0x0be7, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
91 { 0x8086, 0x0be8, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
92 { 0x8086, 0x0be9, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
93 { 0x8086, 0x0bea, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
94 { 0x8086, 0x0beb, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
95 { 0x8086, 0x0bec, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
96 { 0x8086, 0x0bed, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
97 { 0x8086, 0x0bee, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
98 { 0x8086, 0x0bef, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, (long) &cdv_chip_ops
},
102 MODULE_DEVICE_TABLE(pci
, pciidlist
);
107 static const struct drm_ioctl_desc psb_ioctls
[] = {
110 static int psb_do_init(struct drm_device
*dev
)
112 struct drm_psb_private
*dev_priv
= dev
->dev_private
;
113 struct psb_gtt
*pg
= &dev_priv
->gtt
;
117 if (pg
->mmu_gatt_start
& 0x0FFFFFFF) {
118 dev_err(dev
->dev
, "Gatt must be 256M aligned. This is a bug.\n");
122 stolen_gtt
= (pg
->stolen_size
>> PAGE_SHIFT
) * 4;
123 stolen_gtt
= (stolen_gtt
+ PAGE_SIZE
- 1) >> PAGE_SHIFT
;
124 stolen_gtt
= (stolen_gtt
< pg
->gtt_pages
) ? stolen_gtt
: pg
->gtt_pages
;
126 dev_priv
->gatt_free_offset
= pg
->mmu_gatt_start
+
127 (stolen_gtt
<< PAGE_SHIFT
) * 1024;
129 spin_lock_init(&dev_priv
->irqmask_lock
);
130 spin_lock_init(&dev_priv
->lock_2d
);
132 PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0
);
133 PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1
);
134 PSB_RSGX32(PSB_CR_BIF_BANK1
);
136 /* Do not bypass any MMU access, let them pagefault instead */
137 PSB_WSGX32((PSB_RSGX32(PSB_CR_BIF_CTRL
) & ~_PSB_MMU_ER_MASK
),
139 PSB_RSGX32(PSB_CR_BIF_CTRL
);
144 PSB_WSGX32(pg
->gatt_start
, PSB_CR_BIF_TWOD_REQ_BASE
);
145 PSB_RSGX32(PSB_CR_BIF_TWOD_REQ_BASE
); /* Post */
150 static void psb_driver_unload(struct drm_device
*dev
)
152 struct drm_psb_private
*dev_priv
= dev
->dev_private
;
154 /* TODO: Kill vblank etc here */
157 if (dev_priv
->backlight_device
)
158 gma_backlight_exit(dev
);
159 psb_modeset_cleanup(dev
);
161 if (dev_priv
->ops
->chip_teardown
)
162 dev_priv
->ops
->chip_teardown(dev
);
164 psb_intel_opregion_fini(dev
);
166 if (dev_priv
->pf_pd
) {
167 psb_mmu_free_pagedir(dev_priv
->pf_pd
);
168 dev_priv
->pf_pd
= NULL
;
171 struct psb_gtt
*pg
= &dev_priv
->gtt
;
174 psb_mmu_remove_pfn_sequence(
175 psb_mmu_get_default_pd
178 dev_priv
->vram_stolen_size
>> PAGE_SHIFT
);
180 psb_mmu_driver_takedown(dev_priv
->mmu
);
181 dev_priv
->mmu
= NULL
;
183 psb_gtt_takedown(dev
);
184 if (dev_priv
->scratch_page
) {
185 set_pages_wb(dev_priv
->scratch_page
, 1);
186 __free_page(dev_priv
->scratch_page
);
187 dev_priv
->scratch_page
= NULL
;
189 if (dev_priv
->vdc_reg
) {
190 iounmap(dev_priv
->vdc_reg
);
191 dev_priv
->vdc_reg
= NULL
;
193 if (dev_priv
->sgx_reg
) {
194 iounmap(dev_priv
->sgx_reg
);
195 dev_priv
->sgx_reg
= NULL
;
197 if (dev_priv
->aux_reg
) {
198 iounmap(dev_priv
->aux_reg
);
199 dev_priv
->aux_reg
= NULL
;
201 pci_dev_put(dev_priv
->aux_pdev
);
202 pci_dev_put(dev_priv
->lpc_pdev
);
204 /* Destroy VBT data */
205 psb_intel_destroy_bios(dev
);
208 dev
->dev_private
= NULL
;
210 gma_power_uninit(dev
);
213 static int psb_driver_load(struct drm_device
*dev
, unsigned long flags
)
215 struct drm_psb_private
*dev_priv
;
216 unsigned long resource_start
, resource_len
;
217 unsigned long irqflags
;
219 struct drm_connector
*connector
;
220 struct gma_encoder
*gma_encoder
;
223 /* allocating and initializing driver private data */
224 dev_priv
= kzalloc(sizeof(*dev_priv
), GFP_KERNEL
);
225 if (dev_priv
== NULL
)
228 dev_priv
->ops
= (struct psb_ops
*)flags
;
230 dev
->dev_private
= (void *) dev_priv
;
234 pci_set_master(dev
->pdev
);
236 dev_priv
->num_pipe
= dev_priv
->ops
->pipes
;
238 resource_start
= pci_resource_start(dev
->pdev
, PSB_MMIO_RESOURCE
);
241 ioremap(resource_start
+ PSB_VDC_OFFSET
, PSB_VDC_SIZE
);
242 if (!dev_priv
->vdc_reg
)
245 dev_priv
->sgx_reg
= ioremap(resource_start
+ dev_priv
->ops
->sgx_offset
,
247 if (!dev_priv
->sgx_reg
)
251 int domain
= pci_domain_nr(dev
->pdev
->bus
);
254 pci_get_domain_bus_and_slot(domain
, 0,
257 if (dev_priv
->aux_pdev
) {
258 resource_start
= pci_resource_start(dev_priv
->aux_pdev
,
260 resource_len
= pci_resource_len(dev_priv
->aux_pdev
,
262 dev_priv
->aux_reg
= ioremap_nocache(resource_start
,
264 if (!dev_priv
->aux_reg
)
267 DRM_DEBUG_KMS("Found aux vdc");
269 /* Couldn't find the aux vdc so map to primary vdc */
270 dev_priv
->aux_reg
= dev_priv
->vdc_reg
;
271 DRM_DEBUG_KMS("Couldn't find aux pci device");
273 dev_priv
->gmbus_reg
= dev_priv
->aux_reg
;
276 pci_get_domain_bus_and_slot(domain
, 0,
278 if (dev_priv
->lpc_pdev
) {
279 pci_read_config_word(dev_priv
->lpc_pdev
, PSB_LPC_GBA
,
280 &dev_priv
->lpc_gpio_base
);
281 pci_write_config_dword(dev_priv
->lpc_pdev
, PSB_LPC_GBA
,
282 (u32
)dev_priv
->lpc_gpio_base
| (1L<<31));
283 pci_read_config_word(dev_priv
->lpc_pdev
, PSB_LPC_GBA
,
284 &dev_priv
->lpc_gpio_base
);
285 dev_priv
->lpc_gpio_base
&= 0xffc0;
286 if (dev_priv
->lpc_gpio_base
)
287 DRM_DEBUG_KMS("Found LPC GPIO at 0x%04x\n",
288 dev_priv
->lpc_gpio_base
);
290 pci_dev_put(dev_priv
->lpc_pdev
);
291 dev_priv
->lpc_pdev
= NULL
;
295 dev_priv
->gmbus_reg
= dev_priv
->vdc_reg
;
298 psb_intel_opregion_setup(dev
);
300 ret
= dev_priv
->ops
->chip_setup(dev
);
304 /* Init OSPM support */
309 dev_priv
->scratch_page
= alloc_page(GFP_DMA32
| __GFP_ZERO
);
310 if (!dev_priv
->scratch_page
)
313 set_pages_uc(dev_priv
->scratch_page
, 1);
315 ret
= psb_gtt_init(dev
, 0);
319 dev_priv
->mmu
= psb_mmu_driver_init(dev
, 1, 0, 0);
323 dev_priv
->pf_pd
= psb_mmu_alloc_pd(dev_priv
->mmu
, 1, 0);
324 if (!dev_priv
->pf_pd
)
327 ret
= psb_do_init(dev
);
331 /* Add stolen memory to SGX MMU */
333 ret
= psb_mmu_insert_pfn_sequence(psb_mmu_get_default_pd(dev_priv
->mmu
),
334 dev_priv
->stolen_base
>> PAGE_SHIFT
,
336 pg
->stolen_size
>> PAGE_SHIFT
, 0);
339 psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv
->mmu
), 0);
340 psb_mmu_set_pd_context(dev_priv
->pf_pd
, 1);
342 PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE
);
343 PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE
);
345 acpi_video_register();
347 /* Setup vertical blanking handling */
348 ret
= drm_vblank_init(dev
, dev_priv
->num_pipe
);
353 * Install interrupt handlers prior to powering off SGX or else we will
356 dev_priv
->vdc_irq_mask
= 0;
357 dev_priv
->pipestat
[0] = 0;
358 dev_priv
->pipestat
[1] = 0;
359 dev_priv
->pipestat
[2] = 0;
360 spin_lock_irqsave(&dev_priv
->irqmask_lock
, irqflags
);
361 PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM
);
362 PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R
);
363 PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R
);
364 spin_unlock_irqrestore(&dev_priv
->irqmask_lock
, irqflags
);
366 drm_irq_install(dev
, dev
->pdev
->irq
);
368 dev
->max_vblank_count
= 0xffffff; /* only 24 bits of frame count */
369 dev
->driver
->get_vblank_counter
= psb_get_vblank_counter
;
371 psb_modeset_init(dev
);
373 drm_kms_helper_poll_init(dev
);
375 /* Only add backlight support if we have LVDS output */
376 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
,
378 gma_encoder
= gma_attached_encoder(connector
);
380 switch (gma_encoder
->type
) {
381 case INTEL_OUTPUT_LVDS
:
382 case INTEL_OUTPUT_MIPI
:
383 ret
= gma_backlight_init(dev
);
390 psb_intel_opregion_enable_asle(dev
);
392 /* Enable runtime pm at last */
393 pm_runtime_enable(&dev
->pdev
->dev
);
394 pm_runtime_set_active(&dev
->pdev
->dev
);
396 /* Intel drm driver load is done, continue doing pvr load */
399 psb_driver_unload(dev
);
403 static inline void get_brightness(struct backlight_device
*bd
)
405 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
407 bd
->props
.brightness
= bd
->ops
->get_brightness(bd
);
408 backlight_update_status(bd
);
413 static long psb_unlocked_ioctl(struct file
*filp
, unsigned int cmd
,
416 struct drm_file
*file_priv
= filp
->private_data
;
417 struct drm_device
*dev
= file_priv
->minor
->dev
;
418 struct drm_psb_private
*dev_priv
= dev
->dev_private
;
419 static unsigned int runtime_allowed
;
421 if (runtime_allowed
== 1 && dev_priv
->is_lvds_on
) {
423 pm_runtime_allow(&dev
->pdev
->dev
);
424 dev_priv
->rpm_enabled
= 1;
426 return drm_ioctl(filp
, cmd
, arg
);
427 /* FIXME: do we need to wrap the other side of this */
430 static int psb_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
432 return drm_get_pci_dev(pdev
, ent
, &driver
);
436 static void psb_pci_remove(struct pci_dev
*pdev
)
438 struct drm_device
*dev
= pci_get_drvdata(pdev
);
442 static const struct dev_pm_ops psb_pm_ops
= {
443 .resume
= gma_power_resume
,
444 .suspend
= gma_power_suspend
,
445 .thaw
= gma_power_thaw
,
446 .freeze
= gma_power_freeze
,
447 .restore
= gma_power_restore
,
448 .runtime_suspend
= psb_runtime_suspend
,
449 .runtime_resume
= psb_runtime_resume
,
450 .runtime_idle
= psb_runtime_idle
,
453 static const struct vm_operations_struct psb_gem_vm_ops
= {
454 .fault
= psb_gem_fault
,
455 .open
= drm_gem_vm_open
,
456 .close
= drm_gem_vm_close
,
459 static const struct file_operations psb_gem_fops
= {
460 .owner
= THIS_MODULE
,
462 .release
= drm_release
,
463 .unlocked_ioctl
= psb_unlocked_ioctl
,
464 .compat_ioctl
= drm_compat_ioctl
,
465 .mmap
= drm_gem_mmap
,
470 static struct drm_driver driver
= {
471 .driver_features
= DRIVER_HAVE_IRQ
| DRIVER_IRQ_SHARED
| \
472 DRIVER_MODESET
| DRIVER_GEM
,
473 .load
= psb_driver_load
,
474 .unload
= psb_driver_unload
,
475 .lastclose
= drm_fb_helper_lastclose
,
477 .num_ioctls
= ARRAY_SIZE(psb_ioctls
),
478 .irq_preinstall
= psb_irq_preinstall
,
479 .irq_postinstall
= psb_irq_postinstall
,
480 .irq_uninstall
= psb_irq_uninstall
,
481 .irq_handler
= psb_irq_handler
,
482 .enable_vblank
= psb_enable_vblank
,
483 .disable_vblank
= psb_disable_vblank
,
484 .get_vblank_counter
= psb_get_vblank_counter
,
486 .gem_free_object
= psb_gem_free_object
,
487 .gem_vm_ops
= &psb_gem_vm_ops
,
489 .dumb_create
= psb_gem_dumb_create
,
490 .ioctls
= psb_ioctls
,
491 .fops
= &psb_gem_fops
,
495 .major
= DRIVER_MAJOR
,
496 .minor
= DRIVER_MINOR
,
497 .patchlevel
= DRIVER_PATCHLEVEL
500 static struct pci_driver psb_pci_driver
= {
502 .id_table
= pciidlist
,
503 .probe
= psb_pci_probe
,
504 .remove
= psb_pci_remove
,
505 .driver
.pm
= &psb_pm_ops
,
508 static int __init
psb_init(void)
510 return pci_register_driver(&psb_pci_driver
);
513 static void __exit
psb_exit(void)
515 pci_unregister_driver(&psb_pci_driver
);
518 late_initcall(psb_init
);
519 module_exit(psb_exit
);
521 MODULE_AUTHOR(DRIVER_AUTHOR
);
522 MODULE_DESCRIPTION(DRIVER_DESC
);
523 MODULE_LICENSE("GPL");