2 * Copyright 2012 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
25 #include <linux/delay.h>
26 #include <linux/module.h>
27 #include <linux/pci.h>
28 #include <linux/pm_runtime.h>
29 #include <linux/vga_switcheroo.h>
30 #include <linux/mmu_notifier.h>
31 #include <linux/dynamic_debug.h>
33 #include <drm/drm_aperture.h>
34 #include <drm/drm_drv.h>
35 #include <drm/drm_fbdev_generic.h>
36 #include <drm/drm_gem_ttm_helper.h>
37 #include <drm/drm_ioctl.h>
38 #include <drm/drm_vblank.h>
40 #include <core/gpuobj.h>
41 #include <core/option.h>
43 #include <core/tegra.h>
45 #include <nvif/driver.h>
46 #include <nvif/fifo.h>
47 #include <nvif/push006c.h>
48 #include <nvif/user.h>
50 #include <nvif/class.h>
51 #include <nvif/cl0002.h>
53 #include "nouveau_drv.h"
54 #include "nouveau_dma.h"
55 #include "nouveau_ttm.h"
56 #include "nouveau_gem.h"
57 #include "nouveau_vga.h"
58 #include "nouveau_led.h"
59 #include "nouveau_hwmon.h"
60 #include "nouveau_acpi.h"
61 #include "nouveau_bios.h"
62 #include "nouveau_ioctl.h"
63 #include "nouveau_abi16.h"
64 #include "nouveau_fence.h"
65 #include "nouveau_debugfs.h"
66 #include "nouveau_usif.h"
67 #include "nouveau_connector.h"
68 #include "nouveau_platform.h"
69 #include "nouveau_svm.h"
70 #include "nouveau_dmem.h"
71 #include "nouveau_exec.h"
72 #include "nouveau_uvmm.h"
73 #include "nouveau_sched.h"
75 DECLARE_DYNDBG_CLASSMAP(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS, 0,
87 MODULE_PARM_DESC(config, "option string to pass to driver core");
88 static char *nouveau_config;
89 module_param_named(config, nouveau_config, charp, 0400);
91 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
92 static char *nouveau_debug;
93 module_param_named(debug, nouveau_debug, charp, 0400);
95 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
96 static int nouveau_noaccel = 0;
97 module_param_named(noaccel, nouveau_noaccel, int, 0400);
99 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
100 "0 = disabled, 1 = enabled, 2 = headless)");
101 int nouveau_modeset = -1;
102 module_param_named(modeset, nouveau_modeset, int, 0400);
104 MODULE_PARM_DESC(atomic, "Expose atomic ioctl (default: disabled)");
105 static int nouveau_atomic = 0;
106 module_param_named(atomic, nouveau_atomic, int, 0400);
108 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
109 static int nouveau_runtime_pm = -1;
110 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
112 static struct drm_driver driver_stub;
113 static struct drm_driver driver_pci;
114 static struct drm_driver driver_platform;
117 nouveau_pci_name(struct pci_dev *pdev)
119 u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
120 name |= pdev->bus->number << 16;
121 name |= PCI_SLOT(pdev->devfn) << 8;
122 return name | PCI_FUNC(pdev->devfn);
126 nouveau_platform_name(struct platform_device *platformdev)
128 return platformdev->id;
132 nouveau_name(struct drm_device *dev)
134 if (dev_is_pci(dev->dev))
135 return nouveau_pci_name(to_pci_dev(dev->dev));
137 return nouveau_platform_name(to_platform_device(dev->dev));
141 nouveau_cli_work_ready(struct dma_fence *fence)
145 spin_lock_irq(fence->lock);
146 if (!dma_fence_is_signaled_locked(fence))
148 spin_unlock_irq(fence->lock);
151 dma_fence_put(fence);
156 nouveau_cli_work(struct work_struct *w)
158 struct nouveau_cli *cli = container_of(w, typeof(*cli), work);
159 struct nouveau_cli_work *work, *wtmp;
160 mutex_lock(&cli->lock);
161 list_for_each_entry_safe(work, wtmp, &cli->worker, head) {
162 if (!work->fence || nouveau_cli_work_ready(work->fence)) {
163 list_del(&work->head);
167 mutex_unlock(&cli->lock);
171 nouveau_cli_work_fence(struct dma_fence *fence, struct dma_fence_cb *cb)
173 struct nouveau_cli_work *work = container_of(cb, typeof(*work), cb);
174 schedule_work(&work->cli->work);
178 nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence,
179 struct nouveau_cli_work *work)
181 work->fence = dma_fence_get(fence);
183 mutex_lock(&cli->lock);
184 list_add_tail(&work->head, &cli->worker);
185 if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence))
186 nouveau_cli_work_fence(fence, &work->cb);
187 mutex_unlock(&cli->lock);
191 nouveau_cli_fini(struct nouveau_cli *cli)
193 /* All our channels are dead now, which means all the fences they
194 * own are signalled, and all callback functions have been called.
196 * So, after flushing the workqueue, there should be nothing left.
198 flush_work(&cli->work);
199 WARN_ON(!list_empty(&cli->worker));
201 usif_client_fini(cli);
202 nouveau_uvmm_fini(&cli->uvmm);
203 nouveau_sched_entity_fini(&cli->sched_entity);
204 nouveau_vmm_fini(&cli->svm);
205 nouveau_vmm_fini(&cli->vmm);
206 nvif_mmu_dtor(&cli->mmu);
207 nvif_device_dtor(&cli->device);
208 mutex_lock(&cli->drm->master.lock);
209 nvif_client_dtor(&cli->base);
210 mutex_unlock(&cli->drm->master.lock);
214 nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
215 struct nouveau_cli *cli)
217 static const struct nvif_mclass
219 { NVIF_CLASS_MEM_GF100, -1 },
220 { NVIF_CLASS_MEM_NV50 , -1 },
221 { NVIF_CLASS_MEM_NV04 , -1 },
224 static const struct nvif_mclass
226 { NVIF_CLASS_MMU_GF100, -1 },
227 { NVIF_CLASS_MMU_NV50 , -1 },
228 { NVIF_CLASS_MMU_NV04 , -1 },
231 static const struct nvif_mclass
233 { NVIF_CLASS_VMM_GP100, -1 },
234 { NVIF_CLASS_VMM_GM200, -1 },
235 { NVIF_CLASS_VMM_GF100, -1 },
236 { NVIF_CLASS_VMM_NV50 , -1 },
237 { NVIF_CLASS_VMM_NV04 , -1 },
240 u64 device = nouveau_name(drm->dev);
243 snprintf(cli->name, sizeof(cli->name), "%s", sname);
245 mutex_init(&cli->mutex);
246 usif_client_init(cli);
248 INIT_WORK(&cli->work, nouveau_cli_work);
249 INIT_LIST_HEAD(&cli->worker);
250 mutex_init(&cli->lock);
252 if (cli == &drm->master) {
253 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug,
254 cli->name, device, &cli->base);
256 mutex_lock(&drm->master.lock);
257 ret = nvif_client_ctor(&drm->master.base, cli->name, device,
259 mutex_unlock(&drm->master.lock);
262 NV_PRINTK(err, cli, "Client allocation failed: %d\n", ret);
266 ret = nvif_device_ctor(&cli->base.object, "drmDevice", 0, NV_DEVICE,
267 &(struct nv_device_v0) {
270 }, sizeof(struct nv_device_v0),
273 NV_PRINTK(err, cli, "Device allocation failed: %d\n", ret);
277 ret = nvif_mclass(&cli->device.object, mmus);
279 NV_PRINTK(err, cli, "No supported MMU class\n");
283 ret = nvif_mmu_ctor(&cli->device.object, "drmMmu", mmus[ret].oclass,
286 NV_PRINTK(err, cli, "MMU allocation failed: %d\n", ret);
290 ret = nvif_mclass(&cli->mmu.object, vmms);
292 NV_PRINTK(err, cli, "No supported VMM class\n");
296 ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm);
298 NV_PRINTK(err, cli, "VMM allocation failed: %d\n", ret);
302 ret = nvif_mclass(&cli->mmu.object, mems);
304 NV_PRINTK(err, cli, "No supported MEM class\n");
308 cli->mem = &mems[ret];
310 ret = nouveau_sched_entity_init(&cli->sched_entity, &drm->sched,
318 nouveau_cli_fini(cli);
323 nouveau_accel_ce_fini(struct nouveau_drm *drm)
325 nouveau_channel_idle(drm->cechan);
326 nvif_object_dtor(&drm->ttm.copy);
327 nouveau_channel_del(&drm->cechan);
331 nouveau_accel_ce_init(struct nouveau_drm *drm)
333 struct nvif_device *device = &drm->client.device;
337 /* Allocate channel that has access to a (preferably async) copy
338 * engine, to use for TTM buffer moves.
340 runm = nvif_fifo_runlist_ce(device);
342 NV_DEBUG(drm, "no ce runlist\n");
346 ret = nouveau_channel_new(drm, device, false, runm, NvDmaFB, NvDmaTT, &drm->cechan);
348 NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
352 nouveau_accel_gr_fini(struct nouveau_drm *drm)
354 nouveau_channel_idle(drm->channel);
355 nvif_object_dtor(&drm->ntfy);
356 nvkm_gpuobj_del(&drm->notify);
357 nouveau_channel_del(&drm->channel);
361 nouveau_accel_gr_init(struct nouveau_drm *drm)
363 struct nvif_device *device = &drm->client.device;
367 /* Allocate channel that has access to the graphics engine. */
368 runm = nvif_fifo_runlist(device, NV_DEVICE_HOST_RUNLIST_ENGINES_GR);
370 NV_DEBUG(drm, "no gr runlist\n");
374 ret = nouveau_channel_new(drm, device, false, runm, NvDmaFB, NvDmaTT, &drm->channel);
376 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
377 nouveau_accel_gr_fini(drm);
381 /* A SW class is used on pre-NV50 HW to assist with handling the
382 * synchronisation of page flips, as well as to implement fences
383 * on TNT/TNT2 HW that lacks any kind of support in host.
385 if (!drm->channel->nvsw.client && device->info.family < NV_DEVICE_INFO_V0_TESLA) {
386 ret = nvif_object_ctor(&drm->channel->user, "drmNvsw",
387 NVDRM_NVSW, nouveau_abi16_swclass(drm),
388 NULL, 0, &drm->channel->nvsw);
390 if (ret == 0 && device->info.chipset >= 0x11) {
391 ret = nvif_object_ctor(&drm->channel->user, "drmBlit",
393 NULL, 0, &drm->channel->blit);
397 struct nvif_push *push = drm->channel->chan.push;
398 ret = PUSH_WAIT(push, 8);
400 if (device->info.chipset >= 0x11) {
401 PUSH_NVSQ(push, NV05F, 0x0000, drm->channel->blit.handle);
402 PUSH_NVSQ(push, NV09F, 0x0120, 0,
406 PUSH_NVSQ(push, NV_SW, 0x0000, drm->channel->nvsw.handle);
411 NV_ERROR(drm, "failed to allocate sw or blit class, %d\n", ret);
412 nouveau_accel_gr_fini(drm);
417 /* NvMemoryToMemoryFormat requires a notifier ctxdma for some reason,
418 * even if notification is never requested, so, allocate a ctxdma on
419 * any GPU where it's possible we'll end up using M2MF for BO moves.
421 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
422 ret = nvkm_gpuobj_new(nvxx_device(device), 32, 0, false, NULL,
425 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
426 nouveau_accel_gr_fini(drm);
430 ret = nvif_object_ctor(&drm->channel->user, "drmM2mfNtfy",
431 NvNotify0, NV_DMA_IN_MEMORY,
432 &(struct nv_dma_v0) {
433 .target = NV_DMA_V0_TARGET_VRAM,
434 .access = NV_DMA_V0_ACCESS_RDWR,
435 .start = drm->notify->addr,
436 .limit = drm->notify->addr + 31
437 }, sizeof(struct nv_dma_v0),
440 nouveau_accel_gr_fini(drm);
447 nouveau_accel_fini(struct nouveau_drm *drm)
449 nouveau_accel_ce_fini(drm);
450 nouveau_accel_gr_fini(drm);
452 nouveau_fence(drm)->dtor(drm);
453 nouveau_channels_fini(drm);
457 nouveau_accel_init(struct nouveau_drm *drm)
459 struct nvif_device *device = &drm->client.device;
460 struct nvif_sclass *sclass;
466 /* Initialise global support for channels, and synchronisation. */
467 ret = nouveau_channels_init(drm);
471 /*XXX: this is crap, but the fence/channel stuff is a little
472 * backwards in some places. this will be fixed.
474 ret = n = nvif_object_sclass_get(&device->object, &sclass);
478 for (ret = -ENOSYS, i = 0; i < n; i++) {
479 switch (sclass[i].oclass) {
480 case NV03_CHANNEL_DMA:
481 ret = nv04_fence_create(drm);
483 case NV10_CHANNEL_DMA:
484 ret = nv10_fence_create(drm);
486 case NV17_CHANNEL_DMA:
487 case NV40_CHANNEL_DMA:
488 ret = nv17_fence_create(drm);
490 case NV50_CHANNEL_GPFIFO:
491 ret = nv50_fence_create(drm);
493 case G82_CHANNEL_GPFIFO:
494 ret = nv84_fence_create(drm);
496 case FERMI_CHANNEL_GPFIFO:
497 case KEPLER_CHANNEL_GPFIFO_A:
498 case KEPLER_CHANNEL_GPFIFO_B:
499 case MAXWELL_CHANNEL_GPFIFO_A:
500 case PASCAL_CHANNEL_GPFIFO_A:
501 case VOLTA_CHANNEL_GPFIFO_A:
502 case TURING_CHANNEL_GPFIFO_A:
503 case AMPERE_CHANNEL_GPFIFO_A:
504 case AMPERE_CHANNEL_GPFIFO_B:
505 ret = nvc0_fence_create(drm);
512 nvif_object_sclass_put(&sclass);
514 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
515 nouveau_accel_fini(drm);
519 /* Volta requires access to a doorbell register for kickoff. */
520 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_VOLTA) {
521 ret = nvif_user_ctor(device, "drmUsermode");
526 /* Allocate channels we need to support various functions. */
527 nouveau_accel_gr_init(drm);
528 nouveau_accel_ce_init(drm);
530 /* Initialise accelerated TTM buffer moves. */
531 nouveau_bo_move_init(drm);
534 static void __printf(2, 3)
535 nouveau_drm_errorf(struct nvif_object *object, const char *fmt, ...)
537 struct nouveau_drm *drm = container_of(object->parent, typeof(*drm), parent);
538 struct va_format vaf;
544 NV_ERROR(drm, "%pV", &vaf);
548 static void __printf(2, 3)
549 nouveau_drm_debugf(struct nvif_object *object, const char *fmt, ...)
551 struct nouveau_drm *drm = container_of(object->parent, typeof(*drm), parent);
552 struct va_format vaf;
558 NV_DEBUG(drm, "%pV", &vaf);
562 static const struct nvif_parent_func
564 .debugf = nouveau_drm_debugf,
565 .errorf = nouveau_drm_errorf,
569 nouveau_drm_device_init(struct drm_device *dev)
571 struct nouveau_drm *drm;
574 if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL)))
576 dev->dev_private = drm;
579 nvif_parent_ctor(&nouveau_parent, &drm->parent);
580 drm->master.base.object.parent = &drm->parent;
582 ret = nouveau_sched_init(drm);
586 ret = nouveau_cli_init(drm, "DRM-master", &drm->master);
590 ret = nouveau_cli_init(drm, "DRM", &drm->client);
594 nvxx_client(&drm->client.base)->debug =
595 nvkm_dbgopt(nouveau_debug, "DRM");
597 INIT_LIST_HEAD(&drm->clients);
598 mutex_init(&drm->clients_lock);
599 spin_lock_init(&drm->tile.lock);
601 /* workaround an odd issue on nvc1 by disabling the device's
602 * nosnoop capability. hopefully won't cause issues until a
603 * better fix is found - assuming there is one...
605 if (drm->client.device.info.chipset == 0xc1)
606 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000);
608 nouveau_vga_init(drm);
610 ret = nouveau_ttm_init(drm);
614 ret = nouveau_bios_init(dev);
618 nouveau_accel_init(drm);
620 ret = nouveau_display_create(dev);
624 if (dev->mode_config.num_crtc) {
625 ret = nouveau_display_init(dev, false, false);
630 nouveau_debugfs_init(drm);
631 nouveau_hwmon_init(dev);
632 nouveau_svm_init(drm);
633 nouveau_dmem_init(drm);
634 nouveau_led_init(dev);
636 if (nouveau_pmops_runtime()) {
637 pm_runtime_use_autosuspend(dev->dev);
638 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
639 pm_runtime_set_active(dev->dev);
640 pm_runtime_allow(dev->dev);
641 pm_runtime_mark_last_busy(dev->dev);
642 pm_runtime_put(dev->dev);
647 nouveau_display_destroy(dev);
649 nouveau_accel_fini(drm);
650 nouveau_bios_takedown(dev);
652 nouveau_ttm_fini(drm);
654 nouveau_vga_fini(drm);
655 nouveau_cli_fini(&drm->client);
657 nouveau_cli_fini(&drm->master);
659 nouveau_sched_fini(drm);
661 nvif_parent_dtor(&drm->parent);
667 nouveau_drm_device_fini(struct drm_device *dev)
669 struct nouveau_cli *cli, *temp_cli;
670 struct nouveau_drm *drm = nouveau_drm(dev);
672 if (nouveau_pmops_runtime()) {
673 pm_runtime_get_sync(dev->dev);
674 pm_runtime_forbid(dev->dev);
677 nouveau_led_fini(dev);
678 nouveau_dmem_fini(drm);
679 nouveau_svm_fini(drm);
680 nouveau_hwmon_fini(dev);
681 nouveau_debugfs_fini(drm);
683 if (dev->mode_config.num_crtc)
684 nouveau_display_fini(dev, false, false);
685 nouveau_display_destroy(dev);
687 nouveau_accel_fini(drm);
688 nouveau_bios_takedown(dev);
690 nouveau_ttm_fini(drm);
691 nouveau_vga_fini(drm);
694 * There may be existing clients from as-yet unclosed files. For now,
695 * clean them up here rather than deferring until the file is closed,
696 * but this likely not correct if we want to support hot-unplugging
699 mutex_lock(&drm->clients_lock);
700 list_for_each_entry_safe(cli, temp_cli, &drm->clients, head) {
701 list_del(&cli->head);
702 mutex_lock(&cli->mutex);
704 nouveau_abi16_fini(cli->abi16);
705 mutex_unlock(&cli->mutex);
706 nouveau_cli_fini(cli);
709 mutex_unlock(&drm->clients_lock);
711 nouveau_sched_fini(drm);
713 nouveau_cli_fini(&drm->client);
714 nouveau_cli_fini(&drm->master);
715 nvif_parent_dtor(&drm->parent);
716 mutex_destroy(&drm->clients_lock);
721 * On some Intel PCIe bridge controllers doing a
722 * D0 -> D3hot -> D3cold -> D0 sequence causes Nvidia GPUs to not reappear.
723 * Skipping the intermediate D3hot step seems to make it work again. This is
724 * probably caused by not meeting the expectation the involved AML code has
725 * when the GPU is put into D3hot state before invoking it.
727 * This leads to various manifestations of this issue:
728 * - AML code execution to power on the GPU hits an infinite loop (as the
729 * code waits on device memory to change).
730 * - kernel crashes, as all PCI reads return -1, which most code isn't able
731 * to handle well enough.
733 * In all cases dmesg will contain at least one line like this:
734 * 'nouveau 0000:01:00.0: Refused to change power state, currently in D3'
735 * followed by a lot of nouveau timeouts.
737 * In the \_SB.PCI0.PEG0.PG00._OFF code deeper down writes bit 0x80 to the not
738 * documented PCI config space register 0x248 of the Intel PCIe bridge
739 * controller (0x1901) in order to change the state of the PCIe link between
740 * the PCIe port and the GPU. There are alternative code paths using other
741 * registers, which seem to work fine (executed pre Windows 8):
742 * - 0xbc bit 0x20 (publicly available documentation claims 'reserved')
743 * - 0xb0 bit 0x10 (link disable)
744 * Changing the conditions inside the firmware by poking into the relevant
745 * addresses does resolve the issue, but it seemed to be ACPI private memory
746 * and not any device accessible memory at all, so there is no portable way of
747 * changing the conditions.
748 * On a XPS 9560 that means bits [0,3] on \CPEX need to be cleared.
750 * The only systems where this behavior can be seen are hybrid graphics laptops
751 * with a secondary Nvidia Maxwell, Pascal or Turing GPU. It's unclear whether
752 * this issue only occurs in combination with listed Intel PCIe bridge
753 * controllers and the mentioned GPUs or other devices as well.
755 * documentation on the PCIe bridge controller can be found in the
756 * "7th Generation Intel® Processor Families for H Platforms Datasheet Volume 2"
757 * Section "12 PCI Express* Controller (x16) Registers"
760 static void quirk_broken_nv_runpm(struct pci_dev *pdev)
762 struct drm_device *dev = pci_get_drvdata(pdev);
763 struct nouveau_drm *drm = nouveau_drm(dev);
764 struct pci_dev *bridge = pci_upstream_bridge(pdev);
766 if (!bridge || bridge->vendor != PCI_VENDOR_ID_INTEL)
769 switch (bridge->device) {
771 drm->old_pm_cap = pdev->pm_cap;
773 NV_INFO(drm, "Disabling PCI power management to avoid bug\n");
778 static int nouveau_drm_probe(struct pci_dev *pdev,
779 const struct pci_device_id *pent)
781 struct nvkm_device *device;
782 struct drm_device *drm_dev;
785 if (vga_switcheroo_client_probe_defer(pdev))
786 return -EPROBE_DEFER;
788 /* We need to check that the chipset is supported before booting
789 * fbdev off the hardware, as there's no way to put it back.
791 ret = nvkm_device_pci_new(pdev, nouveau_config, "error",
792 true, false, 0, &device);
796 nvkm_device_del(&device);
798 /* Remove conflicting drivers (vesafb, efifb etc). */
799 ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &driver_pci);
803 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
804 true, true, ~0ULL, &device);
808 pci_set_master(pdev);
811 driver_pci.driver_features |= DRIVER_ATOMIC;
813 drm_dev = drm_dev_alloc(&driver_pci, &pdev->dev);
814 if (IS_ERR(drm_dev)) {
815 ret = PTR_ERR(drm_dev);
819 ret = pci_enable_device(pdev);
823 pci_set_drvdata(pdev, drm_dev);
825 ret = nouveau_drm_device_init(drm_dev);
829 ret = drm_dev_register(drm_dev, pent->driver_data);
831 goto fail_drm_dev_init;
833 if (nouveau_drm(drm_dev)->client.device.info.ram_size <= 32 * 1024 * 1024)
834 drm_fbdev_generic_setup(drm_dev, 8);
836 drm_fbdev_generic_setup(drm_dev, 32);
838 quirk_broken_nv_runpm(pdev);
842 nouveau_drm_device_fini(drm_dev);
844 pci_disable_device(pdev);
846 drm_dev_put(drm_dev);
848 nvkm_device_del(&device);
853 nouveau_drm_device_remove(struct drm_device *dev)
855 struct nouveau_drm *drm = nouveau_drm(dev);
856 struct nvkm_client *client;
857 struct nvkm_device *device;
861 client = nvxx_client(&drm->client.base);
862 device = nvkm_device_find(client->device);
864 nouveau_drm_device_fini(dev);
866 nvkm_device_del(&device);
870 nouveau_drm_remove(struct pci_dev *pdev)
872 struct drm_device *dev = pci_get_drvdata(pdev);
873 struct nouveau_drm *drm = nouveau_drm(dev);
875 /* revert our workaround */
877 pdev->pm_cap = drm->old_pm_cap;
878 nouveau_drm_device_remove(dev);
879 pci_disable_device(pdev);
883 nouveau_do_suspend(struct drm_device *dev, bool runtime)
885 struct nouveau_drm *drm = nouveau_drm(dev);
886 struct ttm_resource_manager *man;
889 nouveau_svm_suspend(drm);
890 nouveau_dmem_suspend(drm);
891 nouveau_led_suspend(dev);
893 if (dev->mode_config.num_crtc) {
894 NV_DEBUG(drm, "suspending display...\n");
895 ret = nouveau_display_suspend(dev, runtime);
900 NV_DEBUG(drm, "evicting buffers...\n");
902 man = ttm_manager_type(&drm->ttm.bdev, TTM_PL_VRAM);
903 ttm_resource_manager_evict_all(&drm->ttm.bdev, man);
905 NV_DEBUG(drm, "waiting for kernel channels to go idle...\n");
907 ret = nouveau_channel_idle(drm->cechan);
913 ret = nouveau_channel_idle(drm->channel);
918 NV_DEBUG(drm, "suspending fence...\n");
919 if (drm->fence && nouveau_fence(drm)->suspend) {
920 if (!nouveau_fence(drm)->suspend(drm)) {
926 NV_DEBUG(drm, "suspending object tree...\n");
927 ret = nvif_client_suspend(&drm->master.base);
934 if (drm->fence && nouveau_fence(drm)->resume)
935 nouveau_fence(drm)->resume(drm);
938 if (dev->mode_config.num_crtc) {
939 NV_DEBUG(drm, "resuming display...\n");
940 nouveau_display_resume(dev, runtime);
946 nouveau_do_resume(struct drm_device *dev, bool runtime)
949 struct nouveau_drm *drm = nouveau_drm(dev);
951 NV_DEBUG(drm, "resuming object tree...\n");
952 ret = nvif_client_resume(&drm->master.base);
954 NV_ERROR(drm, "Client resume failed with error: %d\n", ret);
958 NV_DEBUG(drm, "resuming fence...\n");
959 if (drm->fence && nouveau_fence(drm)->resume)
960 nouveau_fence(drm)->resume(drm);
962 nouveau_run_vbios_init(dev);
964 if (dev->mode_config.num_crtc) {
965 NV_DEBUG(drm, "resuming display...\n");
966 nouveau_display_resume(dev, runtime);
969 nouveau_led_resume(dev);
970 nouveau_dmem_resume(drm);
971 nouveau_svm_resume(drm);
976 nouveau_pmops_suspend(struct device *dev)
978 struct pci_dev *pdev = to_pci_dev(dev);
979 struct drm_device *drm_dev = pci_get_drvdata(pdev);
982 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
983 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
986 ret = nouveau_do_suspend(drm_dev, false);
990 pci_save_state(pdev);
991 pci_disable_device(pdev);
992 pci_set_power_state(pdev, PCI_D3hot);
998 nouveau_pmops_resume(struct device *dev)
1000 struct pci_dev *pdev = to_pci_dev(dev);
1001 struct drm_device *drm_dev = pci_get_drvdata(pdev);
1004 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
1005 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
1008 pci_set_power_state(pdev, PCI_D0);
1009 pci_restore_state(pdev);
1010 ret = pci_enable_device(pdev);
1013 pci_set_master(pdev);
1015 ret = nouveau_do_resume(drm_dev, false);
1017 /* Monitors may have been connected / disconnected during suspend */
1018 nouveau_display_hpd_resume(drm_dev);
1024 nouveau_pmops_freeze(struct device *dev)
1026 struct pci_dev *pdev = to_pci_dev(dev);
1027 struct drm_device *drm_dev = pci_get_drvdata(pdev);
1028 return nouveau_do_suspend(drm_dev, false);
1032 nouveau_pmops_thaw(struct device *dev)
1034 struct pci_dev *pdev = to_pci_dev(dev);
1035 struct drm_device *drm_dev = pci_get_drvdata(pdev);
1036 return nouveau_do_resume(drm_dev, false);
1040 nouveau_pmops_runtime(void)
1042 if (nouveau_runtime_pm == -1)
1043 return nouveau_is_optimus() || nouveau_is_v1_dsm();
1044 return nouveau_runtime_pm == 1;
1048 nouveau_pmops_runtime_suspend(struct device *dev)
1050 struct pci_dev *pdev = to_pci_dev(dev);
1051 struct drm_device *drm_dev = pci_get_drvdata(pdev);
1054 if (!nouveau_pmops_runtime()) {
1055 pm_runtime_forbid(dev);
1059 nouveau_switcheroo_optimus_dsm();
1060 ret = nouveau_do_suspend(drm_dev, true);
1061 pci_save_state(pdev);
1062 pci_disable_device(pdev);
1063 pci_ignore_hotplug(pdev);
1064 pci_set_power_state(pdev, PCI_D3cold);
1065 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
1070 nouveau_pmops_runtime_resume(struct device *dev)
1072 struct pci_dev *pdev = to_pci_dev(dev);
1073 struct drm_device *drm_dev = pci_get_drvdata(pdev);
1074 struct nouveau_drm *drm = nouveau_drm(drm_dev);
1075 struct nvif_device *device = &nouveau_drm(drm_dev)->client.device;
1078 if (!nouveau_pmops_runtime()) {
1079 pm_runtime_forbid(dev);
1083 pci_set_power_state(pdev, PCI_D0);
1084 pci_restore_state(pdev);
1085 ret = pci_enable_device(pdev);
1088 pci_set_master(pdev);
1090 ret = nouveau_do_resume(drm_dev, true);
1092 NV_ERROR(drm, "resume failed with: %d\n", ret);
1097 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
1098 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
1100 /* Monitors may have been connected / disconnected during suspend */
1101 nouveau_display_hpd_resume(drm_dev);
1107 nouveau_pmops_runtime_idle(struct device *dev)
1109 if (!nouveau_pmops_runtime()) {
1110 pm_runtime_forbid(dev);
1114 pm_runtime_mark_last_busy(dev);
1115 pm_runtime_autosuspend(dev);
1116 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
1121 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
1123 struct nouveau_drm *drm = nouveau_drm(dev);
1124 struct nouveau_cli *cli;
1125 char name[32], tmpname[TASK_COMM_LEN];
1128 /* need to bring up power immediately if opening device */
1129 ret = pm_runtime_get_sync(dev->dev);
1130 if (ret < 0 && ret != -EACCES) {
1131 pm_runtime_put_autosuspend(dev->dev);
1135 get_task_comm(tmpname, current);
1137 snprintf(name, sizeof(name), "%s[%d]",
1138 tmpname, pid_nr(rcu_dereference(fpriv->pid)));
1141 if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) {
1146 ret = nouveau_cli_init(drm, name, cli);
1150 fpriv->driver_priv = cli;
1152 mutex_lock(&drm->clients_lock);
1153 list_add(&cli->head, &drm->clients);
1154 mutex_unlock(&drm->clients_lock);
1158 nouveau_cli_fini(cli);
1162 pm_runtime_mark_last_busy(dev->dev);
1163 pm_runtime_put_autosuspend(dev->dev);
1168 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
1170 struct nouveau_cli *cli = nouveau_cli(fpriv);
1171 struct nouveau_drm *drm = nouveau_drm(dev);
1175 * The device is gone, and as it currently stands all clients are
1176 * cleaned up in the removal codepath. In the future this may change
1177 * so that we can support hot-unplugging, but for now we immediately
1178 * return to avoid a double-free situation.
1180 if (!drm_dev_enter(dev, &dev_index))
1183 pm_runtime_get_sync(dev->dev);
1185 mutex_lock(&cli->mutex);
1187 nouveau_abi16_fini(cli->abi16);
1188 mutex_unlock(&cli->mutex);
1190 mutex_lock(&drm->clients_lock);
1191 list_del(&cli->head);
1192 mutex_unlock(&drm->clients_lock);
1194 nouveau_cli_fini(cli);
1196 pm_runtime_mark_last_busy(dev->dev);
1197 pm_runtime_put_autosuspend(dev->dev);
1198 drm_dev_exit(dev_index);
1201 static const struct drm_ioctl_desc
1202 nouveau_ioctls[] = {
1203 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_RENDER_ALLOW),
1204 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1205 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_RENDER_ALLOW),
1206 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_RENDER_ALLOW),
1207 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_RENDER_ALLOW),
1208 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_RENDER_ALLOW),
1209 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_RENDER_ALLOW),
1210 DRM_IOCTL_DEF_DRV(NOUVEAU_SVM_INIT, nouveau_svmm_init, DRM_RENDER_ALLOW),
1211 DRM_IOCTL_DEF_DRV(NOUVEAU_SVM_BIND, nouveau_svmm_bind, DRM_RENDER_ALLOW),
1212 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_RENDER_ALLOW),
1213 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_RENDER_ALLOW),
1214 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_RENDER_ALLOW),
1215 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_RENDER_ALLOW),
1216 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_RENDER_ALLOW),
1217 DRM_IOCTL_DEF_DRV(NOUVEAU_VM_INIT, nouveau_uvmm_ioctl_vm_init, DRM_RENDER_ALLOW),
1218 DRM_IOCTL_DEF_DRV(NOUVEAU_VM_BIND, nouveau_uvmm_ioctl_vm_bind, DRM_RENDER_ALLOW),
1219 DRM_IOCTL_DEF_DRV(NOUVEAU_EXEC, nouveau_exec_ioctl_exec, DRM_RENDER_ALLOW),
1223 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1225 struct drm_file *filp = file->private_data;
1226 struct drm_device *dev = filp->minor->dev;
1229 ret = pm_runtime_get_sync(dev->dev);
1230 if (ret < 0 && ret != -EACCES) {
1231 pm_runtime_put_autosuspend(dev->dev);
1235 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
1236 case DRM_NOUVEAU_NVIF:
1237 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
1240 ret = drm_ioctl(file, cmd, arg);
1244 pm_runtime_mark_last_busy(dev->dev);
1245 pm_runtime_put_autosuspend(dev->dev);
1249 static const struct file_operations
1250 nouveau_driver_fops = {
1251 .owner = THIS_MODULE,
1253 .release = drm_release,
1254 .unlocked_ioctl = nouveau_drm_ioctl,
1255 .mmap = drm_gem_mmap,
1258 #if defined(CONFIG_COMPAT)
1259 .compat_ioctl = nouveau_compat_ioctl,
1261 .llseek = noop_llseek,
1264 static struct drm_driver
1266 .driver_features = DRIVER_GEM |
1267 DRIVER_SYNCOBJ | DRIVER_SYNCOBJ_TIMELINE |
1271 .open = nouveau_drm_open,
1272 .postclose = nouveau_drm_postclose,
1273 .lastclose = nouveau_vga_lastclose,
1275 #if defined(CONFIG_DEBUG_FS)
1276 .debugfs_init = nouveau_drm_debugfs_init,
1279 .ioctls = nouveau_ioctls,
1280 .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
1281 .fops = &nouveau_driver_fops,
1283 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
1285 .dumb_create = nouveau_display_dumb_create,
1286 .dumb_map_offset = drm_gem_ttm_dumb_map_offset,
1288 .name = DRIVER_NAME,
1289 .desc = DRIVER_DESC,
1291 .date = GIT_REVISION,
1293 .date = DRIVER_DATE,
1295 .major = DRIVER_MAJOR,
1296 .minor = DRIVER_MINOR,
1297 .patchlevel = DRIVER_PATCHLEVEL,
1300 static struct pci_device_id
1301 nouveau_drm_pci_table[] = {
1303 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1304 .class = PCI_BASE_CLASS_DISPLAY << 16,
1305 .class_mask = 0xff << 16,
1308 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1309 .class = PCI_BASE_CLASS_DISPLAY << 16,
1310 .class_mask = 0xff << 16,
1315 static void nouveau_display_options(void)
1317 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1319 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable);
1320 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid);
1321 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink);
1322 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config);
1323 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug);
1324 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel);
1325 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset);
1326 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm);
1327 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1328 DRM_DEBUG_DRIVER("... hdmimhz : %d\n", nouveau_hdmimhz);
1331 static const struct dev_pm_ops nouveau_pm_ops = {
1332 .suspend = nouveau_pmops_suspend,
1333 .resume = nouveau_pmops_resume,
1334 .freeze = nouveau_pmops_freeze,
1335 .thaw = nouveau_pmops_thaw,
1336 .poweroff = nouveau_pmops_freeze,
1337 .restore = nouveau_pmops_resume,
1338 .runtime_suspend = nouveau_pmops_runtime_suspend,
1339 .runtime_resume = nouveau_pmops_runtime_resume,
1340 .runtime_idle = nouveau_pmops_runtime_idle,
1343 static struct pci_driver
1344 nouveau_drm_pci_driver = {
1346 .id_table = nouveau_drm_pci_table,
1347 .probe = nouveau_drm_probe,
1348 .remove = nouveau_drm_remove,
1349 .driver.pm = &nouveau_pm_ops,
1353 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1354 struct platform_device *pdev,
1355 struct nvkm_device **pdevice)
1357 struct drm_device *drm;
1360 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1361 true, true, ~0ULL, pdevice);
1365 drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1371 err = nouveau_drm_device_init(drm);
1375 platform_set_drvdata(pdev, drm);
1382 nvkm_device_del(pdevice);
1384 return ERR_PTR(err);
1388 nouveau_drm_init(void)
1390 driver_pci = driver_stub;
1391 driver_platform = driver_stub;
1393 nouveau_display_options();
1395 if (nouveau_modeset == -1) {
1396 if (drm_firmware_drivers_only())
1397 nouveau_modeset = 0;
1400 if (!nouveau_modeset)
1403 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1404 platform_driver_register(&nouveau_platform_driver);
1407 nouveau_register_dsm_handler();
1408 nouveau_backlight_ctor();
1411 return pci_register_driver(&nouveau_drm_pci_driver);
1418 nouveau_drm_exit(void)
1420 if (!nouveau_modeset)
1424 pci_unregister_driver(&nouveau_drm_pci_driver);
1426 nouveau_backlight_dtor();
1427 nouveau_unregister_dsm_handler();
1429 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1430 platform_driver_unregister(&nouveau_platform_driver);
1432 if (IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM))
1433 mmu_notifier_synchronize();
1436 module_init(nouveau_drm_init);
1437 module_exit(nouveau_drm_exit);
1439 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1440 MODULE_AUTHOR(DRIVER_AUTHOR);
1441 MODULE_DESCRIPTION(DRIVER_DESC);
1442 MODULE_LICENSE("GPL and additional rights");