/* * Copyright 2012 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Ben Skeggs */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "nouveau_drv.h" #include "nouveau_dma.h" #include "nouveau_ttm.h" #include "nouveau_gem.h" #include "nouveau_vga.h" #include "nouveau_led.h" #include "nouveau_hwmon.h" #include "nouveau_acpi.h" #include "nouveau_bios.h" #include "nouveau_ioctl.h" #include "nouveau_abi16.h" #include "nouveau_fbcon.h" #include "nouveau_fence.h" #include "nouveau_debugfs.h" #include "nouveau_usif.h" #include "nouveau_connector.h" #include "nouveau_platform.h" #include "nouveau_svm.h" #include "nouveau_dmem.h" MODULE_PARM_DESC(config, "option string to pass to driver core"); static char *nouveau_config; module_param_named(config, nouveau_config, charp, 0400); MODULE_PARM_DESC(debug, "debug string to pass to driver core"); static char *nouveau_debug; module_param_named(debug, nouveau_debug, charp, 0400); MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration"); static int nouveau_noaccel = 0; module_param_named(noaccel, nouveau_noaccel, int, 0400); MODULE_PARM_DESC(modeset, "enable driver (default: auto, " "0 = disabled, 1 = enabled, 2 = headless)"); int nouveau_modeset = -1; module_param_named(modeset, nouveau_modeset, int, 0400); MODULE_PARM_DESC(atomic, "Expose atomic ioctl (default: disabled)"); static int nouveau_atomic = 0; module_param_named(atomic, nouveau_atomic, int, 0400); MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)"); static int nouveau_runtime_pm = -1; module_param_named(runpm, nouveau_runtime_pm, int, 0400); static struct drm_driver driver_stub; static struct drm_driver driver_pci; static struct drm_driver driver_platform; static u64 nouveau_pci_name(struct pci_dev *pdev) { u64 name = (u64)pci_domain_nr(pdev->bus) << 32; name |= pdev->bus->number << 16; name |= PCI_SLOT(pdev->devfn) << 8; return name | PCI_FUNC(pdev->devfn); } static u64 nouveau_platform_name(struct platform_device *platformdev) { return platformdev->id; } static u64 nouveau_name(struct drm_device *dev) { if (dev_is_pci(dev->dev)) return nouveau_pci_name(to_pci_dev(dev->dev)); else return nouveau_platform_name(to_platform_device(dev->dev)); } static inline bool nouveau_cli_work_ready(struct dma_fence *fence) { bool ret = true; spin_lock_irq(fence->lock); if (!dma_fence_is_signaled_locked(fence)) ret = false; spin_unlock_irq(fence->lock); if (ret == true) dma_fence_put(fence); return ret; } static void nouveau_cli_work(struct work_struct *w) { struct nouveau_cli *cli = container_of(w, typeof(*cli), work); struct nouveau_cli_work *work, *wtmp; mutex_lock(&cli->lock); list_for_each_entry_safe(work, wtmp, &cli->worker, head) { if (!work->fence || nouveau_cli_work_ready(work->fence)) { list_del(&work->head); work->func(work); } } mutex_unlock(&cli->lock); } static void nouveau_cli_work_fence(struct dma_fence *fence, struct dma_fence_cb *cb) { struct nouveau_cli_work *work = container_of(cb, typeof(*work), cb); schedule_work(&work->cli->work); } void nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence, struct nouveau_cli_work *work) { work->fence = dma_fence_get(fence); work->cli = cli; mutex_lock(&cli->lock); list_add_tail(&work->head, &cli->worker); if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence)) nouveau_cli_work_fence(fence, &work->cb); mutex_unlock(&cli->lock); } static void nouveau_cli_fini(struct nouveau_cli *cli) { /* All our channels are dead now, which means all the fences they * own are signalled, and all callback functions have been called. * * So, after flushing the workqueue, there should be nothing left. */ flush_work(&cli->work); WARN_ON(!list_empty(&cli->worker)); usif_client_fini(cli); nouveau_vmm_fini(&cli->svm); nouveau_vmm_fini(&cli->vmm); nvif_mmu_dtor(&cli->mmu); nvif_device_dtor(&cli->device); mutex_lock(&cli->drm->master.lock); nvif_client_dtor(&cli->base); mutex_unlock(&cli->drm->master.lock); } static int nouveau_cli_init(struct nouveau_drm *drm, const char *sname, struct nouveau_cli *cli) { static const struct nvif_mclass mems[] = { { NVIF_CLASS_MEM_GF100, -1 }, { NVIF_CLASS_MEM_NV50 , -1 }, { NVIF_CLASS_MEM_NV04 , -1 }, {} }; static const struct nvif_mclass mmus[] = { { NVIF_CLASS_MMU_GF100, -1 }, { NVIF_CLASS_MMU_NV50 , -1 }, { NVIF_CLASS_MMU_NV04 , -1 }, {} }; static const struct nvif_mclass vmms[] = { { NVIF_CLASS_VMM_GP100, -1 }, { NVIF_CLASS_VMM_GM200, -1 }, { NVIF_CLASS_VMM_GF100, -1 }, { NVIF_CLASS_VMM_NV50 , -1 }, { NVIF_CLASS_VMM_NV04 , -1 }, {} }; u64 device = nouveau_name(drm->dev); int ret; snprintf(cli->name, sizeof(cli->name), "%s", sname); cli->drm = drm; mutex_init(&cli->mutex); usif_client_init(cli); INIT_WORK(&cli->work, nouveau_cli_work); INIT_LIST_HEAD(&cli->worker); mutex_init(&cli->lock); if (cli == &drm->master) { ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug, cli->name, device, &cli->base); } else { mutex_lock(&drm->master.lock); ret = nvif_client_ctor(&drm->master.base, cli->name, device, &cli->base); mutex_unlock(&drm->master.lock); } if (ret) { NV_PRINTK(err, cli, "Client allocation failed: %d\n", ret); goto done; } ret = nvif_device_ctor(&cli->base.object, "drmDevice", 0, NV_DEVICE, &(struct nv_device_v0) { .device = ~0, .priv = true, }, sizeof(struct nv_device_v0), &cli->device); if (ret) { NV_PRINTK(err, cli, "Device allocation failed: %d\n", ret); goto done; } ret = nvif_mclass(&cli->device.object, mmus); if (ret < 0) { NV_PRINTK(err, cli, "No supported MMU class\n"); goto done; } ret = nvif_mmu_ctor(&cli->device.object, "drmMmu", mmus[ret].oclass, &cli->mmu); if (ret) { NV_PRINTK(err, cli, "MMU allocation failed: %d\n", ret); goto done; } ret = nvif_mclass(&cli->mmu.object, vmms); if (ret < 0) { NV_PRINTK(err, cli, "No supported VMM class\n"); goto done; } ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm); if (ret) { NV_PRINTK(err, cli, "VMM allocation failed: %d\n", ret); goto done; } ret = nvif_mclass(&cli->mmu.object, mems); if (ret < 0) { NV_PRINTK(err, cli, "No supported MEM class\n"); goto done; } cli->mem = &mems[ret]; return 0; done: if (ret) nouveau_cli_fini(cli); return ret; } static void nouveau_accel_ce_fini(struct nouveau_drm *drm) { nouveau_channel_idle(drm->cechan); nvif_object_dtor(&drm->ttm.copy); nouveau_channel_del(&drm->cechan); } static void nouveau_accel_ce_init(struct nouveau_drm *drm) { struct nvif_device *device = &drm->client.device; int ret = 0; /* Allocate channel that has access to a (preferably async) copy * engine, to use for TTM buffer moves. */ if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { ret = nouveau_channel_new(drm, device, nvif_fifo_runlist_ce(device), 0, true, &drm->cechan); } else if (device->info.chipset >= 0xa3 && device->info.chipset != 0xaa && device->info.chipset != 0xac) { /* Prior to Kepler, there's only a single runlist, so all * engines can be accessed from any channel. * * We still want to use a separate channel though. */ ret = nouveau_channel_new(drm, device, NvDmaFB, NvDmaTT, false, &drm->cechan); } if (ret) NV_ERROR(drm, "failed to create ce channel, %d\n", ret); } static void nouveau_accel_gr_fini(struct nouveau_drm *drm) { nouveau_channel_idle(drm->channel); nvif_object_dtor(&drm->ntfy); nvkm_gpuobj_del(&drm->notify); nouveau_channel_del(&drm->channel); } static void nouveau_accel_gr_init(struct nouveau_drm *drm) { struct nvif_device *device = &drm->client.device; u32 arg0, arg1; int ret; if (device->info.family >= NV_DEVICE_INFO_V0_AMPERE) return; /* Allocate channel that has access to the graphics engine. */ if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { arg0 = nvif_fifo_runlist(device, NV_DEVICE_HOST_RUNLIST_ENGINES_GR); arg1 = 1; } else { arg0 = NvDmaFB; arg1 = NvDmaTT; } ret = nouveau_channel_new(drm, device, arg0, arg1, false, &drm->channel); if (ret) { NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); nouveau_accel_gr_fini(drm); return; } /* A SW class is used on pre-NV50 HW to assist with handling the * synchronisation of page flips, as well as to implement fences * on TNT/TNT2 HW that lacks any kind of support in host. */ if (!drm->channel->nvsw.client && device->info.family < NV_DEVICE_INFO_V0_TESLA) { ret = nvif_object_ctor(&drm->channel->user, "drmNvsw", NVDRM_NVSW, nouveau_abi16_swclass(drm), NULL, 0, &drm->channel->nvsw); if (ret == 0) { struct nvif_push *push = drm->channel->chan.push; ret = PUSH_WAIT(push, 2); if (ret == 0) PUSH_NVSQ(push, NV_SW, 0x0000, drm->channel->nvsw.handle); } if (ret) { NV_ERROR(drm, "failed to allocate sw class, %d\n", ret); nouveau_accel_gr_fini(drm); return; } } /* NvMemoryToMemoryFormat requires a notifier ctxdma for some reason, * even if notification is never requested, so, allocate a ctxdma on * any GPU where it's possible we'll end up using M2MF for BO moves. */ if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { ret = nvkm_gpuobj_new(nvxx_device(device), 32, 0, false, NULL, &drm->notify); if (ret) { NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); nouveau_accel_gr_fini(drm); return; } ret = nvif_object_ctor(&drm->channel->user, "drmM2mfNtfy", NvNotify0, NV_DMA_IN_MEMORY, &(struct nv_dma_v0) { .target = NV_DMA_V0_TARGET_VRAM, .access = NV_DMA_V0_ACCESS_RDWR, .start = drm->notify->addr, .limit = drm->notify->addr + 31 }, sizeof(struct nv_dma_v0), &drm->ntfy); if (ret) { nouveau_accel_gr_fini(drm); return; } } } static void nouveau_accel_fini(struct nouveau_drm *drm) { nouveau_accel_ce_fini(drm); nouveau_accel_gr_fini(drm); if (drm->fence) nouveau_fence(drm)->dtor(drm); } static void nouveau_accel_init(struct nouveau_drm *drm) { struct nvif_device *device = &drm->client.device; struct nvif_sclass *sclass; int ret, i, n; if (nouveau_noaccel) return; /* Initialise global support for channels, and synchronisation. */ ret = nouveau_channels_init(drm); if (ret) return; /*XXX: this is crap, but the fence/channel stuff is a little * backwards in some places. this will be fixed. */ ret = n = nvif_object_sclass_get(&device->object, &sclass); if (ret < 0) return; for (ret = -ENOSYS, i = 0; i < n; i++) { switch (sclass[i].oclass) { case NV03_CHANNEL_DMA: ret = nv04_fence_create(drm); break; case NV10_CHANNEL_DMA: ret = nv10_fence_create(drm); break; case NV17_CHANNEL_DMA: case NV40_CHANNEL_DMA: ret = nv17_fence_create(drm); break; case NV50_CHANNEL_GPFIFO: ret = nv50_fence_create(drm); break; case G82_CHANNEL_GPFIFO: ret = nv84_fence_create(drm); break; case FERMI_CHANNEL_GPFIFO: case KEPLER_CHANNEL_GPFIFO_A: case KEPLER_CHANNEL_GPFIFO_B: case MAXWELL_CHANNEL_GPFIFO_A: case PASCAL_CHANNEL_GPFIFO_A: case VOLTA_CHANNEL_GPFIFO_A: case TURING_CHANNEL_GPFIFO_A: case AMPERE_CHANNEL_GPFIFO_B: ret = nvc0_fence_create(drm); break; default: break; } } nvif_object_sclass_put(&sclass); if (ret) { NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); nouveau_accel_fini(drm); return; } /* Volta requires access to a doorbell register for kickoff. */ if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_VOLTA) { ret = nvif_user_ctor(device, "drmUsermode"); if (ret) return; } /* Allocate channels we need to support various functions. */ nouveau_accel_gr_init(drm); nouveau_accel_ce_init(drm); /* Initialise accelerated TTM buffer moves. */ nouveau_bo_move_init(drm); } static void __printf(2, 3) nouveau_drm_errorf(struct nvif_object *object, const char *fmt, ...) { struct nouveau_drm *drm = container_of(object->parent, typeof(*drm), parent); struct va_format vaf; va_list va; va_start(va, fmt); vaf.fmt = fmt; vaf.va = &va; NV_ERROR(drm, "%pV", &vaf); va_end(va); } static void __printf(2, 3) nouveau_drm_debugf(struct nvif_object *object, const char *fmt, ...) { struct nouveau_drm *drm = container_of(object->parent, typeof(*drm), parent); struct va_format vaf; va_list va; va_start(va, fmt); vaf.fmt = fmt; vaf.va = &va; NV_DEBUG(drm, "%pV", &vaf); va_end(va); } static const struct nvif_parent_func nouveau_parent = { .debugf = nouveau_drm_debugf, .errorf = nouveau_drm_errorf, }; static int nouveau_drm_device_init(struct drm_device *dev) { struct nouveau_drm *drm; int ret; if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL))) return -ENOMEM; dev->dev_private = drm; drm->dev = dev; nvif_parent_ctor(&nouveau_parent, &drm->parent); drm->master.base.object.parent = &drm->parent; ret = nouveau_cli_init(drm, "DRM-master", &drm->master); if (ret) goto fail_alloc; ret = nouveau_cli_init(drm, "DRM", &drm->client); if (ret) goto fail_master; nvxx_client(&drm->client.base)->debug = nvkm_dbgopt(nouveau_debug, "DRM"); INIT_LIST_HEAD(&drm->clients); mutex_init(&drm->clients_lock); spin_lock_init(&drm->tile.lock); /* workaround an odd issue on nvc1 by disabling the device's * nosnoop capability. hopefully won't cause issues until a * better fix is found - assuming there is one... */ if (drm->client.device.info.chipset == 0xc1) nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000); nouveau_vga_init(drm); ret = nouveau_ttm_init(drm); if (ret) goto fail_ttm; ret = nouveau_bios_init(dev); if (ret) goto fail_bios; nouveau_accel_init(drm); ret = nouveau_display_create(dev); if (ret) goto fail_dispctor; if (dev->mode_config.num_crtc) { ret = nouveau_display_init(dev, false, false); if (ret) goto fail_dispinit; } nouveau_debugfs_init(drm); nouveau_hwmon_init(dev); nouveau_svm_init(drm); nouveau_dmem_init(drm); nouveau_fbcon_init(dev); nouveau_led_init(dev); if (nouveau_pmops_runtime()) { pm_runtime_use_autosuspend(dev->dev); pm_runtime_set_autosuspend_delay(dev->dev, 5000); pm_runtime_set_active(dev->dev); pm_runtime_allow(dev->dev); pm_runtime_mark_last_busy(dev->dev); pm_runtime_put(dev->dev); } return 0; fail_dispinit: nouveau_display_destroy(dev); fail_dispctor: nouveau_accel_fini(drm); nouveau_bios_takedown(dev); fail_bios: nouveau_ttm_fini(drm); fail_ttm: nouveau_vga_fini(drm); nouveau_cli_fini(&drm->client); fail_master: nouveau_cli_fini(&drm->master); fail_alloc: nvif_parent_dtor(&drm->parent); kfree(drm); return ret; } static void nouveau_drm_device_fini(struct drm_device *dev) { struct nouveau_cli *cli, *temp_cli; struct nouveau_drm *drm = nouveau_drm(dev); if (nouveau_pmops_runtime()) { pm_runtime_get_sync(dev->dev); pm_runtime_forbid(dev->dev); } nouveau_led_fini(dev); nouveau_fbcon_fini(dev); nouveau_dmem_fini(drm); nouveau_svm_fini(drm); nouveau_hwmon_fini(dev); nouveau_debugfs_fini(drm); if (dev->mode_config.num_crtc) nouveau_display_fini(dev, false, false); nouveau_display_destroy(dev); nouveau_accel_fini(drm); nouveau_bios_takedown(dev); nouveau_ttm_fini(drm); nouveau_vga_fini(drm); /* * There may be existing clients from as-yet unclosed files. For now, * clean them up here rather than deferring until the file is closed, * but this likely not correct if we want to support hot-unplugging * properly. */ mutex_lock(&drm->clients_lock); list_for_each_entry_safe(cli, temp_cli, &drm->clients, head) { list_del(&cli->head); mutex_lock(&cli->mutex); if (cli->abi16) nouveau_abi16_fini(cli->abi16); mutex_unlock(&cli->mutex); nouveau_cli_fini(cli); kfree(cli); } mutex_unlock(&drm->clients_lock); nouveau_cli_fini(&drm->client); nouveau_cli_fini(&drm->master); nvif_parent_dtor(&drm->parent); mutex_destroy(&drm->clients_lock); kfree(drm); } /* * On some Intel PCIe bridge controllers doing a * D0 -> D3hot -> D3cold -> D0 sequence causes Nvidia GPUs to not reappear. * Skipping the intermediate D3hot step seems to make it work again. This is * probably caused by not meeting the expectation the involved AML code has * when the GPU is put into D3hot state before invoking it. * * This leads to various manifestations of this issue: * - AML code execution to power on the GPU hits an infinite loop (as the * code waits on device memory to change). * - kernel crashes, as all PCI reads return -1, which most code isn't able * to handle well enough. * * In all cases dmesg will contain at least one line like this: * 'nouveau 0000:01:00.0: Refused to change power state, currently in D3' * followed by a lot of nouveau timeouts. * * In the \_SB.PCI0.PEG0.PG00._OFF code deeper down writes bit 0x80 to the not * documented PCI config space register 0x248 of the Intel PCIe bridge * controller (0x1901) in order to change the state of the PCIe link between * the PCIe port and the GPU. There are alternative code paths using other * registers, which seem to work fine (executed pre Windows 8): * - 0xbc bit 0x20 (publicly available documentation claims 'reserved') * - 0xb0 bit 0x10 (link disable) * Changing the conditions inside the firmware by poking into the relevant * addresses does resolve the issue, but it seemed to be ACPI private memory * and not any device accessible memory at all, so there is no portable way of * changing the conditions. * On a XPS 9560 that means bits [0,3] on \CPEX need to be cleared. * * The only systems where this behavior can be seen are hybrid graphics laptops * with a secondary Nvidia Maxwell, Pascal or Turing GPU. It's unclear whether * this issue only occurs in combination with listed Intel PCIe bridge * controllers and the mentioned GPUs or other devices as well. * * documentation on the PCIe bridge controller can be found in the * "7th Generation Intel® Processor Families for H Platforms Datasheet Volume 2" * Section "12 PCI Express* Controller (x16) Registers" */ static void quirk_broken_nv_runpm(struct pci_dev *pdev) { struct drm_device *dev = pci_get_drvdata(pdev); struct nouveau_drm *drm = nouveau_drm(dev); struct pci_dev *bridge = pci_upstream_bridge(pdev); if (!bridge || bridge->vendor != PCI_VENDOR_ID_INTEL) return; switch (bridge->device) { case 0x1901: drm->old_pm_cap = pdev->pm_cap; pdev->pm_cap = 0; NV_INFO(drm, "Disabling PCI power management to avoid bug\n"); break; } } static int nouveau_drm_probe(struct pci_dev *pdev, const struct pci_device_id *pent) { struct nvkm_device *device; struct drm_device *drm_dev; int ret; if (vga_switcheroo_client_probe_defer(pdev)) return -EPROBE_DEFER; /* We need to check that the chipset is supported before booting * fbdev off the hardware, as there's no way to put it back. */ ret = nvkm_device_pci_new(pdev, nouveau_config, "error", true, false, 0, &device); if (ret) return ret; nvkm_device_del(&device); /* Remove conflicting drivers (vesafb, efifb etc). */ ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &driver_pci); if (ret) return ret; ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug, true, true, ~0ULL, &device); if (ret) return ret; pci_set_master(pdev); if (nouveau_atomic) driver_pci.driver_features |= DRIVER_ATOMIC; drm_dev = drm_dev_alloc(&driver_pci, &pdev->dev); if (IS_ERR(drm_dev)) { ret = PTR_ERR(drm_dev); goto fail_nvkm; } ret = pci_enable_device(pdev); if (ret) goto fail_drm; pci_set_drvdata(pdev, drm_dev); ret = nouveau_drm_device_init(drm_dev); if (ret) goto fail_pci; ret = drm_dev_register(drm_dev, pent->driver_data); if (ret) goto fail_drm_dev_init; quirk_broken_nv_runpm(pdev); return 0; fail_drm_dev_init: nouveau_drm_device_fini(drm_dev); fail_pci: pci_disable_device(pdev); fail_drm: drm_dev_put(drm_dev); fail_nvkm: nvkm_device_del(&device); return ret; } void nouveau_drm_device_remove(struct drm_device *dev) { struct nouveau_drm *drm = nouveau_drm(dev); struct nvkm_client *client; struct nvkm_device *device; drm_dev_unplug(dev); client = nvxx_client(&drm->client.base); device = nvkm_device_find(client->device); nouveau_drm_device_fini(dev); drm_dev_put(dev); nvkm_device_del(&device); } static void nouveau_drm_remove(struct pci_dev *pdev) { struct drm_device *dev = pci_get_drvdata(pdev); struct nouveau_drm *drm = nouveau_drm(dev); /* revert our workaround */ if (drm->old_pm_cap) pdev->pm_cap = drm->old_pm_cap; nouveau_drm_device_remove(dev); pci_disable_device(pdev); } static int nouveau_do_suspend(struct drm_device *dev, bool runtime) { struct nouveau_drm *drm = nouveau_drm(dev); struct ttm_resource_manager *man; int ret; nouveau_svm_suspend(drm); nouveau_dmem_suspend(drm); nouveau_led_suspend(dev); if (dev->mode_config.num_crtc) { NV_DEBUG(drm, "suspending console...\n"); nouveau_fbcon_set_suspend(dev, 1); NV_DEBUG(drm, "suspending display...\n"); ret = nouveau_display_suspend(dev, runtime); if (ret) return ret; } NV_DEBUG(drm, "evicting buffers...\n"); man = ttm_manager_type(&drm->ttm.bdev, TTM_PL_VRAM); ttm_resource_manager_evict_all(&drm->ttm.bdev, man); NV_DEBUG(drm, "waiting for kernel channels to go idle...\n"); if (drm->cechan) { ret = nouveau_channel_idle(drm->cechan); if (ret) goto fail_display; } if (drm->channel) { ret = nouveau_channel_idle(drm->channel); if (ret) goto fail_display; } NV_DEBUG(drm, "suspending fence...\n"); if (drm->fence && nouveau_fence(drm)->suspend) { if (!nouveau_fence(drm)->suspend(drm)) { ret = -ENOMEM; goto fail_display; } } NV_DEBUG(drm, "suspending object tree...\n"); ret = nvif_client_suspend(&drm->master.base); if (ret) goto fail_client; return 0; fail_client: if (drm->fence && nouveau_fence(drm)->resume) nouveau_fence(drm)->resume(drm); fail_display: if (dev->mode_config.num_crtc) { NV_DEBUG(drm, "resuming display...\n"); nouveau_display_resume(dev, runtime); } return ret; } static int nouveau_do_resume(struct drm_device *dev, bool runtime) { int ret = 0; struct nouveau_drm *drm = nouveau_drm(dev); NV_DEBUG(drm, "resuming object tree...\n"); ret = nvif_client_resume(&drm->master.base); if (ret) { NV_ERROR(drm, "Client resume failed with error: %d\n", ret); return ret; } NV_DEBUG(drm, "resuming fence...\n"); if (drm->fence && nouveau_fence(drm)->resume) nouveau_fence(drm)->resume(drm); nouveau_run_vbios_init(dev); if (dev->mode_config.num_crtc) { NV_DEBUG(drm, "resuming display...\n"); nouveau_display_resume(dev, runtime); NV_DEBUG(drm, "resuming console...\n"); nouveau_fbcon_set_suspend(dev, 0); } nouveau_led_resume(dev); nouveau_dmem_resume(drm); nouveau_svm_resume(drm); return 0; } int nouveau_pmops_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); int ret; if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) return 0; ret = nouveau_do_suspend(drm_dev, false); if (ret) return ret; pci_save_state(pdev); pci_disable_device(pdev); pci_set_power_state(pdev, PCI_D3hot); udelay(200); return 0; } int nouveau_pmops_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); int ret; if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) return 0; pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); ret = pci_enable_device(pdev); if (ret) return ret; pci_set_master(pdev); ret = nouveau_do_resume(drm_dev, false); /* Monitors may have been connected / disconnected during suspend */ nouveau_display_hpd_resume(drm_dev); return ret; } static int nouveau_pmops_freeze(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); return nouveau_do_suspend(drm_dev, false); } static int nouveau_pmops_thaw(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); return nouveau_do_resume(drm_dev, false); } bool nouveau_pmops_runtime(void) { if (nouveau_runtime_pm == -1) return nouveau_is_optimus() || nouveau_is_v1_dsm(); return nouveau_runtime_pm == 1; } static int nouveau_pmops_runtime_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); int ret; if (!nouveau_pmops_runtime()) { pm_runtime_forbid(dev); return -EBUSY; } nouveau_switcheroo_optimus_dsm(); ret = nouveau_do_suspend(drm_dev, true); pci_save_state(pdev); pci_disable_device(pdev); pci_ignore_hotplug(pdev); pci_set_power_state(pdev, PCI_D3cold); drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; return ret; } static int nouveau_pmops_runtime_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); struct nouveau_drm *drm = nouveau_drm(drm_dev); struct nvif_device *device = &nouveau_drm(drm_dev)->client.device; int ret; if (!nouveau_pmops_runtime()) { pm_runtime_forbid(dev); return -EBUSY; } pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); ret = pci_enable_device(pdev); if (ret) return ret; pci_set_master(pdev); ret = nouveau_do_resume(drm_dev, true); if (ret) { NV_ERROR(drm, "resume failed with: %d\n", ret); return ret; } /* do magic */ nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; /* Monitors may have been connected / disconnected during suspend */ nouveau_display_hpd_resume(drm_dev); return ret; } static int nouveau_pmops_runtime_idle(struct device *dev) { if (!nouveau_pmops_runtime()) { pm_runtime_forbid(dev); return -EBUSY; } pm_runtime_mark_last_busy(dev); pm_runtime_autosuspend(dev); /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ return 1; } static int nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) { struct nouveau_drm *drm = nouveau_drm(dev); struct nouveau_cli *cli; char name[32], tmpname[TASK_COMM_LEN]; int ret; /* need to bring up power immediately if opening device */ ret = pm_runtime_get_sync(dev->dev); if (ret < 0 && ret != -EACCES) { pm_runtime_put_autosuspend(dev->dev); return ret; } get_task_comm(tmpname, current); snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) { ret = -ENOMEM; goto done; } ret = nouveau_cli_init(drm, name, cli); if (ret) goto done; fpriv->driver_priv = cli; mutex_lock(&drm->clients_lock); list_add(&cli->head, &drm->clients); mutex_unlock(&drm->clients_lock); done: if (ret && cli) { nouveau_cli_fini(cli); kfree(cli); } pm_runtime_mark_last_busy(dev->dev); pm_runtime_put_autosuspend(dev->dev); return ret; } static void nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) { struct nouveau_cli *cli = nouveau_cli(fpriv); struct nouveau_drm *drm = nouveau_drm(dev); int dev_index; /* * The device is gone, and as it currently stands all clients are * cleaned up in the removal codepath. In the future this may change * so that we can support hot-unplugging, but for now we immediately * return to avoid a double-free situation. */ if (!drm_dev_enter(dev, &dev_index)) return; pm_runtime_get_sync(dev->dev); mutex_lock(&cli->mutex); if (cli->abi16) nouveau_abi16_fini(cli->abi16); mutex_unlock(&cli->mutex); mutex_lock(&drm->clients_lock); list_del(&cli->head); mutex_unlock(&drm->clients_lock); nouveau_cli_fini(cli); kfree(cli); pm_runtime_mark_last_busy(dev->dev); pm_runtime_put_autosuspend(dev->dev); drm_dev_exit(dev_index); } static const struct drm_ioctl_desc nouveau_ioctls[] = { DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_SVM_INIT, nouveau_svmm_init, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_SVM_BIND, nouveau_svmm_bind, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_RENDER_ALLOW), }; long nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct drm_file *filp = file->private_data; struct drm_device *dev = filp->minor->dev; long ret; ret = pm_runtime_get_sync(dev->dev); if (ret < 0 && ret != -EACCES) { pm_runtime_put_autosuspend(dev->dev); return ret; } switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { case DRM_NOUVEAU_NVIF: ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); break; default: ret = drm_ioctl(file, cmd, arg); break; } pm_runtime_mark_last_busy(dev->dev); pm_runtime_put_autosuspend(dev->dev); return ret; } static const struct file_operations nouveau_driver_fops = { .owner = THIS_MODULE, .open = drm_open, .release = drm_release, .unlocked_ioctl = nouveau_drm_ioctl, .mmap = drm_gem_mmap, .poll = drm_poll, .read = drm_read, #if defined(CONFIG_COMPAT) .compat_ioctl = nouveau_compat_ioctl, #endif .llseek = noop_llseek, }; static struct drm_driver driver_stub = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_RENDER #if defined(CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT) | DRIVER_KMS_LEGACY_CONTEXT #endif , .open = nouveau_drm_open, .postclose = nouveau_drm_postclose, .lastclose = nouveau_vga_lastclose, #if defined(CONFIG_DEBUG_FS) .debugfs_init = nouveau_drm_debugfs_init, #endif .ioctls = nouveau_ioctls, .num_ioctls = ARRAY_SIZE(nouveau_ioctls), .fops = &nouveau_driver_fops, .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, .gem_prime_mmap = drm_gem_prime_mmap, .dumb_create = nouveau_display_dumb_create, .dumb_map_offset = drm_gem_ttm_dumb_map_offset, .name = DRIVER_NAME, .desc = DRIVER_DESC, #ifdef GIT_REVISION .date = GIT_REVISION, #else .date = DRIVER_DATE, #endif .major = DRIVER_MAJOR, .minor = DRIVER_MINOR, .patchlevel = DRIVER_PATCHLEVEL, }; static struct pci_device_id nouveau_drm_pci_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), .class = PCI_BASE_CLASS_DISPLAY << 16, .class_mask = 0xff << 16, }, { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), .class = PCI_BASE_CLASS_DISPLAY << 16, .class_mask = 0xff << 16, }, {} }; static void nouveau_display_options(void) { DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); DRM_DEBUG_DRIVER("... hdmimhz : %d\n", nouveau_hdmimhz); } static const struct dev_pm_ops nouveau_pm_ops = { .suspend = nouveau_pmops_suspend, .resume = nouveau_pmops_resume, .freeze = nouveau_pmops_freeze, .thaw = nouveau_pmops_thaw, .poweroff = nouveau_pmops_freeze, .restore = nouveau_pmops_resume, .runtime_suspend = nouveau_pmops_runtime_suspend, .runtime_resume = nouveau_pmops_runtime_resume, .runtime_idle = nouveau_pmops_runtime_idle, }; static struct pci_driver nouveau_drm_pci_driver = { .name = "nouveau", .id_table = nouveau_drm_pci_table, .probe = nouveau_drm_probe, .remove = nouveau_drm_remove, .driver.pm = &nouveau_pm_ops, }; struct drm_device * nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, struct platform_device *pdev, struct nvkm_device **pdevice) { struct drm_device *drm; int err; err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, true, true, ~0ULL, pdevice); if (err) goto err_free; drm = drm_dev_alloc(&driver_platform, &pdev->dev); if (IS_ERR(drm)) { err = PTR_ERR(drm); goto err_free; } err = nouveau_drm_device_init(drm); if (err) goto err_put; platform_set_drvdata(pdev, drm); return drm; err_put: drm_dev_put(drm); err_free: nvkm_device_del(pdevice); return ERR_PTR(err); } static int __init nouveau_drm_init(void) { driver_pci = driver_stub; driver_platform = driver_stub; nouveau_display_options(); if (nouveau_modeset == -1) { if (vgacon_text_force()) nouveau_modeset = 0; } if (!nouveau_modeset) return 0; #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER platform_driver_register(&nouveau_platform_driver); #endif nouveau_register_dsm_handler(); nouveau_backlight_ctor(); #ifdef CONFIG_PCI return pci_register_driver(&nouveau_drm_pci_driver); #else return 0; #endif } static void __exit nouveau_drm_exit(void) { if (!nouveau_modeset) return; #ifdef CONFIG_PCI pci_unregister_driver(&nouveau_drm_pci_driver); #endif nouveau_backlight_dtor(); nouveau_unregister_dsm_handler(); #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER platform_driver_unregister(&nouveau_platform_driver); #endif if (IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM)) mmu_notifier_synchronize(); } module_init(nouveau_drm_init); module_exit(nouveau_drm_exit); MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL and additional rights");