drm: remove symlinks from build, use Kbuild files for lib build

The DRM build used a separate, symlinked, source tree out of a desire
to avoid Kbuild/autotools' object files conflicting.

Not only is this very annoying to maintain, but it's made worse by
having two entirely separate source file lists to maintain too.

Fixes both these issues by ditching automake (it doesn't approve of
the kernel's Kbuild syntax) in favour of custom makefiles that can
build libnvif.so from the Kbuild files.

Like the previous commit, this will never show up in the kernel tree
(it has its own version).

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 1135 insertions, 0 deletions

diff --git a/drm/nouveau/nouveau_drm.c b/drm/nouveau/nouveau_drm.c
new file mode 100644
index 000000000..1118efa56
--- /dev/null
+++ b/drm/nouveau/nouveau_drm.c
@@ -0,0 +1,1135 @@
+/*
+ * 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 <linux/console.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/pm_runtime.h>
+#include <linux/vga_switcheroo.h>
+
+#include "drmP.h"
+#include "drm_crtc_helper.h"
+
+#include <core/device.h>
+#include <core/gpuobj.h>
+#include <core/option.h>
+
+#include "nouveau_drm.h"
+#include "nouveau_dma.h"
+#include "nouveau_ttm.h"
+#include "nouveau_gem.h"
+#include "nouveau_agp.h"
+#include "nouveau_vga.h"
+#include "nouveau_sysfs.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"
+
+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(runpm, "disable (0), force enable (1), optimus only default (-1)");
+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->pdev)
+		return nouveau_pci_name(dev->pdev);
+	else
+		return nouveau_platform_name(dev->platformdev);
+}
+
+static int
+nouveau_cli_create(u64 name, const char *sname,
+		   int size, void **pcli)
+{
+	struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
+	if (cli) {
+		int ret = nvif_client_init(NULL, NULL, sname, name,
+					   nouveau_config, nouveau_debug,
+					  &cli->base);
+		if (ret == 0) {
+			mutex_init(&cli->mutex);
+			usif_client_init(cli);
+		}
+		return ret;
+	}
+	return -ENOMEM;
+}
+
+static void
+nouveau_cli_destroy(struct nouveau_cli *cli)
+{
+	nouveau_vm_ref(NULL, &nvkm_client(&cli->base)->vm, NULL);
+	nvif_client_fini(&cli->base);
+	usif_client_fini(cli);
+}
+
+static void
+nouveau_accel_fini(struct nouveau_drm *drm)
+{
+	nouveau_channel_del(&drm->channel);
+	nvif_object_fini(&drm->ntfy);
+	nouveau_gpuobj_ref(NULL, &drm->notify);
+	nvif_object_fini(&drm->nvsw);
+	nouveau_channel_del(&drm->cechan);
+	nvif_object_fini(&drm->ttm.copy);
+	if (drm->fence)
+		nouveau_fence(drm)->dtor(drm);
+}
+
+static void
+nouveau_accel_init(struct nouveau_drm *drm)
+{
+	struct nvif_device *device = &drm->device;
+	u32 arg0, arg1;
+	u32 sclass[16];
+	int ret, i;
+
+	if (nouveau_noaccel)
+		return;
+
+	/* initialise synchronisation routines */
+	/*XXX: this is crap, but the fence/channel stuff is a little
+	 *     backwards in some places.  this will be fixed.
+	 */
+	ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
+	if (ret < 0)
+		return;
+
+	for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
+		switch (sclass[i]) {
+		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:
+			ret = nvc0_fence_create(drm);
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (ret) {
+		NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
+		nouveau_accel_fini(drm);
+		return;
+	}
+
+	if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
+		ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
+					  KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
+					  KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
+					  0, &drm->cechan);
+		if (ret)
+			NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
+
+		arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
+		arg1 = 1;
+	} else
+	if (device->info.chipset >= 0xa3 &&
+	    device->info.chipset != 0xaa &&
+	    device->info.chipset != 0xac) {
+		ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
+					  NvDmaFB, NvDmaTT, &drm->cechan);
+		if (ret)
+			NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
+
+		arg0 = NvDmaFB;
+		arg1 = NvDmaTT;
+	} else {
+		arg0 = NvDmaFB;
+		arg1 = NvDmaTT;
+	}
+
+	ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
+				 &drm->channel);
+	if (ret) {
+		NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
+		nouveau_accel_fini(drm);
+		return;
+	}
+
+	ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
+			       nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
+	if (ret == 0) {
+		struct nouveau_software_chan *swch;
+		ret = RING_SPACE(drm->channel, 2);
+		if (ret == 0) {
+			if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
+				BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
+				OUT_RING  (drm->channel, NVDRM_NVSW);
+			} else
+			if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
+				BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
+				OUT_RING  (drm->channel, 0x001f0000);
+			}
+		}
+		swch = (void *)nvkm_object(&drm->nvsw)->parent;
+		swch->flip = nouveau_flip_complete;
+		swch->flip_data = drm->channel;
+	}
+
+	if (ret) {
+		NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
+		nouveau_accel_fini(drm);
+		return;
+	}
+
+	if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
+		ret = nouveau_gpuobj_new(nvkm_object(&drm->device), NULL, 32,
+					 0, 0, &drm->notify);
+		if (ret) {
+			NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
+			nouveau_accel_fini(drm);
+			return;
+		}
+
+		ret = nvif_object_init(drm->channel->object, NULL, 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_fini(drm);
+			return;
+		}
+	}
+
+
+	nouveau_bo_move_init(drm);
+}
+
+static int nouveau_drm_probe(struct pci_dev *pdev,
+			     const struct pci_device_id *pent)
+{
+	struct nouveau_device *device;
+	struct apertures_struct *aper;
+	bool boot = false;
+	int ret;
+
+	/* remove conflicting drivers (vesafb, efifb etc) */
+	aper = alloc_apertures(3);
+	if (!aper)
+		return -ENOMEM;
+
+	aper->ranges[0].base = pci_resource_start(pdev, 1);
+	aper->ranges[0].size = pci_resource_len(pdev, 1);
+	aper->count = 1;
+
+	if (pci_resource_len(pdev, 2)) {
+		aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
+		aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
+		aper->count++;
+	}
+
+	if (pci_resource_len(pdev, 3)) {
+		aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
+		aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
+		aper->count++;
+	}
+
+#ifdef CONFIG_X86
+	boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
+#endif
+	if (nouveau_modeset != 2)
+		remove_conflicting_framebuffers(aper, "nouveaufb", boot);
+	kfree(aper);
+
+	ret = nouveau_device_create(pdev, NOUVEAU_BUS_PCI,
+				    nouveau_pci_name(pdev), pci_name(pdev),
+				    nouveau_config, nouveau_debug, &device);
+	if (ret)
+		return ret;
+
+	pci_set_master(pdev);
+
+	ret = drm_get_pci_dev(pdev, pent, &driver_pci);
+	if (ret) {
+		nouveau_object_ref(NULL, (struct nouveau_object **)&device);
+		return ret;
+	}
+
+	return 0;
+}
+
+#define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
+
+static void
+nouveau_get_hdmi_dev(struct nouveau_drm *drm)
+{
+	struct pci_dev *pdev = drm->dev->pdev;
+
+	if (!pdev) {
+		DRM_INFO("not a PCI device; no HDMI\n");
+		drm->hdmi_device = NULL;
+		return;
+	}
+
+	/* subfunction one is a hdmi audio device? */
+	drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
+						PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
+
+	if (!drm->hdmi_device) {
+		NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
+		return;
+	}
+
+	if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
+		NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
+		pci_dev_put(drm->hdmi_device);
+		drm->hdmi_device = NULL;
+		return;
+	}
+}
+
+static int
+nouveau_drm_load(struct drm_device *dev, unsigned long flags)
+{
+	struct pci_dev *pdev = dev->pdev;
+	struct nouveau_drm *drm;
+	int ret;
+
+	ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
+				 (void **)&drm);
+	if (ret)
+		return ret;
+
+	dev->dev_private = drm;
+	drm->dev = dev;
+	nvkm_client(&drm->client.base)->debug =
+		nouveau_dbgopt(nouveau_debug, "DRM");
+
+	INIT_LIST_HEAD(&drm->clients);
+	spin_lock_init(&drm->tile.lock);
+
+	nouveau_get_hdmi_dev(drm);
+
+	/* make sure AGP controller is in a consistent state before we
+	 * (possibly) execute vbios init tables (see nouveau_agp.h)
+	 */
+	if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
+		const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
+				    NV_DEVICE_V0_DISABLE_MMIO;
+		/* dummy device object, doesn't init anything, but allows
+		 * agp code access to registers
+		 */
+		ret = nvif_device_init(&drm->client.base.base, NULL,
+				       NVDRM_DEVICE, NV_DEVICE,
+				       &(struct nv_device_v0) {
+						.device = ~0,
+						.disable = ~enables,
+						.debug0 = ~0,
+				       }, sizeof(struct nv_device_v0),
+				       &drm->device);
+		if (ret)
+			goto fail_device;
+
+		nouveau_agp_reset(drm);
+		nvif_device_fini(&drm->device);
+	}
+
+	ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
+			       NV_DEVICE,
+			       &(struct nv_device_v0) {
+					.device = ~0,
+					.disable = 0,
+					.debug0 = 0,
+			       }, sizeof(struct nv_device_v0),
+			       &drm->device);
+	if (ret)
+		goto fail_device;
+
+	dev->irq_enabled = true;
+
+	/* 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->device.info.chipset == 0xc1)
+		nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000);
+
+	nouveau_vga_init(drm);
+	nouveau_agp_init(drm);
+
+	if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
+		ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
+				     0x1000, &drm->client.vm);
+		if (ret)
+			goto fail_device;
+
+		nvkm_client(&drm->client.base)->vm = drm->client.vm;
+	}
+
+	ret = nouveau_ttm_init(drm);
+	if (ret)
+		goto fail_ttm;
+
+	ret = nouveau_bios_init(dev);
+	if (ret)
+		goto fail_bios;
+
+	ret = nouveau_display_create(dev);
+	if (ret)
+		goto fail_dispctor;
+
+	if (dev->mode_config.num_crtc) {
+		ret = nouveau_display_init(dev);
+		if (ret)
+			goto fail_dispinit;
+	}
+
+	nouveau_sysfs_init(dev);
+	nouveau_hwmon_init(dev);
+	nouveau_accel_init(drm);
+	nouveau_fbcon_init(dev);
+
+	if (nouveau_runtime_pm != 0) {
+		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_bios_takedown(dev);
+fail_bios:
+	nouveau_ttm_fini(drm);
+fail_ttm:
+	nouveau_agp_fini(drm);
+	nouveau_vga_fini(drm);
+fail_device:
+	nvif_device_fini(&drm->device);
+	nouveau_cli_destroy(&drm->client);
+	return ret;
+}
+
+static int
+nouveau_drm_unload(struct drm_device *dev)
+{
+	struct nouveau_drm *drm = nouveau_drm(dev);
+
+	pm_runtime_get_sync(dev->dev);
+	nouveau_fbcon_fini(dev);
+	nouveau_accel_fini(drm);
+	nouveau_hwmon_fini(dev);
+	nouveau_sysfs_fini(dev);
+
+	if (dev->mode_config.num_crtc)
+		nouveau_display_fini(dev);
+	nouveau_display_destroy(dev);
+
+	nouveau_bios_takedown(dev);
+
+	nouveau_ttm_fini(drm);
+	nouveau_agp_fini(drm);
+	nouveau_vga_fini(drm);
+
+	nvif_device_fini(&drm->device);
+	if (drm->hdmi_device)
+		pci_dev_put(drm->hdmi_device);
+	nouveau_cli_destroy(&drm->client);
+	return 0;
+}
+
+void
+nouveau_drm_device_remove(struct drm_device *dev)
+{
+	struct nouveau_drm *drm = nouveau_drm(dev);
+	struct nouveau_client *client;
+	struct nouveau_object *device;
+
+	dev->irq_enabled = false;
+	client = nvkm_client(&drm->client.base);
+	device = client->device;
+	drm_put_dev(dev);
+
+	nouveau_object_ref(NULL, &device);
+	nouveau_object_debug();
+}
+
+static void
+nouveau_drm_remove(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+
+	nouveau_drm_device_remove(dev);
+}
+
+static int
+nouveau_do_suspend(struct drm_device *dev, bool runtime)
+{
+	struct nouveau_drm *drm = nouveau_drm(dev);
+	struct nouveau_cli *cli;
+	int ret;
+
+	if (dev->mode_config.num_crtc) {
+		NV_INFO(drm, "suspending console...\n");
+		nouveau_fbcon_set_suspend(dev, 1);
+		NV_INFO(drm, "suspending display...\n");
+		ret = nouveau_display_suspend(dev, runtime);
+		if (ret)
+			return ret;
+	}
+
+	NV_INFO(drm, "evicting buffers...\n");
+	ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
+
+	NV_INFO(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_INFO(drm, "suspending client object trees...\n");
+	if (drm->fence && nouveau_fence(drm)->suspend) {
+		if (!nouveau_fence(drm)->suspend(drm)) {
+			ret = -ENOMEM;
+			goto fail_display;
+		}
+	}
+
+	list_for_each_entry(cli, &drm->clients, head) {
+		ret = nvif_client_suspend(&cli->base);
+		if (ret)
+			goto fail_client;
+	}
+
+	NV_INFO(drm, "suspending kernel object tree...\n");
+	ret = nvif_client_suspend(&drm->client.base);
+	if (ret)
+		goto fail_client;
+
+	nouveau_agp_fini(drm);
+	return 0;
+
+fail_client:
+	list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
+		nvif_client_resume(&cli->base);
+	}
+
+	if (drm->fence && nouveau_fence(drm)->resume)
+		nouveau_fence(drm)->resume(drm);
+
+fail_display:
+	if (dev->mode_config.num_crtc) {
+		NV_INFO(drm, "resuming display...\n");
+		nouveau_display_resume(dev, runtime);
+	}
+	return ret;
+}
+
+static int
+nouveau_do_resume(struct drm_device *dev, bool runtime)
+{
+	struct nouveau_drm *drm = nouveau_drm(dev);
+	struct nouveau_cli *cli;
+
+	NV_INFO(drm, "re-enabling device...\n");
+
+	nouveau_agp_reset(drm);
+
+	NV_INFO(drm, "resuming kernel object tree...\n");
+	nvif_client_resume(&drm->client.base);
+	nouveau_agp_init(drm);
+
+	NV_INFO(drm, "resuming client object trees...\n");
+	if (drm->fence && nouveau_fence(drm)->resume)
+		nouveau_fence(drm)->resume(drm);
+
+	list_for_each_entry(cli, &drm->clients, head) {
+		nvif_client_resume(&cli->base);
+	}
+
+	nouveau_run_vbios_init(dev);
+
+	if (dev->mode_config.num_crtc) {
+		NV_INFO(drm, "resuming display...\n");
+		nouveau_display_resume(dev, runtime);
+		NV_INFO(drm, "resuming console...\n");
+		nouveau_fbcon_set_suspend(dev, 0);
+	}
+
+	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);
+	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);
+
+	return nouveau_do_resume(drm_dev, false);
+}
+
+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);
+}
+
+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_runtime_pm == 0) {
+		pm_runtime_forbid(dev);
+		return -EBUSY;
+	}
+
+	/* are we optimus enabled? */
+	if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
+		DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
+		pm_runtime_forbid(dev);
+		return -EBUSY;
+	}
+
+	nv_debug_level(SILENT);
+	drm_kms_helper_poll_disable(drm_dev);
+	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
+	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 nvif_device *device = &nouveau_drm(drm_dev)->device;
+	int ret;
+
+	if (nouveau_runtime_pm == 0)
+		return -EINVAL;
+
+	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);
+	drm_kms_helper_poll_enable(drm_dev);
+	/* do magic */
+	nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
+	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
+	drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
+	nv_debug_level(NORMAL);
+	return ret;
+}
+
+static int
+nouveau_pmops_runtime_idle(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 drm_crtc *crtc;
+
+	if (nouveau_runtime_pm == 0) {
+		pm_runtime_forbid(dev);
+		return -EBUSY;
+	}
+
+	/* are we optimus enabled? */
+	if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
+		DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
+		pm_runtime_forbid(dev);
+		return -EBUSY;
+	}
+
+	/* if we have a hdmi audio device - make sure it has a driver loaded */
+	if (drm->hdmi_device) {
+		if (!drm->hdmi_device->driver) {
+			DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
+			pm_runtime_mark_last_busy(dev);
+			return -EBUSY;
+		}
+	}
+
+	list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
+		if (crtc->enabled) {
+			DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
+			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)
+		return ret;
+
+	get_task_comm(tmpname, current);
+	snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
+
+	ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
+			(void **)&cli);
+
+	if (ret)
+		goto out_suspend;
+
+	cli->base.super = false;
+
+	if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
+		ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
+				     0x1000, &cli->vm);
+		if (ret) {
+			nouveau_cli_destroy(cli);
+			goto out_suspend;
+		}
+
+		nvkm_client(&cli->base)->vm = cli->vm;
+	}
+
+	fpriv->driver_priv = cli;
+
+	mutex_lock(&drm->client.mutex);
+	list_add(&cli->head, &drm->clients);
+	mutex_unlock(&drm->client.mutex);
+
+out_suspend:
+	pm_runtime_mark_last_busy(dev->dev);
+	pm_runtime_put_autosuspend(dev->dev);
+
+	return ret;
+}
+
+static void
+nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
+{
+	struct nouveau_cli *cli = nouveau_cli(fpriv);
+	struct nouveau_drm *drm = nouveau_drm(dev);
+
+	pm_runtime_get_sync(dev->dev);
+
+	if (cli->abi16)
+		nouveau_abi16_fini(cli->abi16);
+
+	mutex_lock(&drm->client.mutex);
+	list_del(&cli->head);
+	mutex_unlock(&drm->client.mutex);
+
+}
+
+static void
+nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
+{
+	struct nouveau_cli *cli = nouveau_cli(fpriv);
+	nouveau_cli_destroy(cli);
+	pm_runtime_mark_last_busy(dev->dev);
+	pm_runtime_put_autosuspend(dev->dev);
+}
+
+static const struct drm_ioctl_desc
+nouveau_ioctls[] = {
+	DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|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)
+		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 = nouveau_ttm_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_USE_AGP |
+		DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
+
+	.load = nouveau_drm_load,
+	.unload = nouveau_drm_unload,
+	.open = nouveau_drm_open,
+	.preclose = nouveau_drm_preclose,
+	.postclose = nouveau_drm_postclose,
+	.lastclose = nouveau_vga_lastclose,
+
+#if defined(CONFIG_DEBUG_FS)
+	.debugfs_init = nouveau_debugfs_init,
+	.debugfs_cleanup = nouveau_debugfs_takedown,
+#endif
+
+	.get_vblank_counter = drm_vblank_count,
+	.enable_vblank = nouveau_display_vblank_enable,
+	.disable_vblank = nouveau_display_vblank_disable,
+	.get_scanout_position = nouveau_display_scanoutpos,
+	.get_vblank_timestamp = nouveau_display_vblstamp,
+
+	.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_export = drm_gem_prime_export,
+	.gem_prime_import = drm_gem_prime_import,
+	.gem_prime_pin = nouveau_gem_prime_pin,
+	.gem_prime_res_obj = nouveau_gem_prime_res_obj,
+	.gem_prime_unpin = nouveau_gem_prime_unpin,
+	.gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
+	.gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
+	.gem_prime_vmap = nouveau_gem_prime_vmap,
+	.gem_prime_vunmap = nouveau_gem_prime_vunmap,
+
+	.gem_free_object = nouveau_gem_object_del,
+	.gem_open_object = nouveau_gem_object_open,
+	.gem_close_object = nouveau_gem_object_close,
+
+	.dumb_create = nouveau_display_dumb_create,
+	.dumb_map_offset = nouveau_display_dumb_map_offset,
+	.dumb_destroy = drm_gem_dumb_destroy,
+
+	.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("... pstate       : %d\n", nouveau_pstate);
+}
+
+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_(struct platform_device *pdev, int size,
+				void **pobject)
+{
+	struct drm_device *drm;
+	int err;
+
+	err = nouveau_device_create_(pdev, NOUVEAU_BUS_PLATFORM,
+				    nouveau_platform_name(pdev),
+				    dev_name(&pdev->dev), nouveau_config,
+				    nouveau_debug, size, pobject);
+	if (err)
+		return ERR_PTR(err);
+
+	drm = drm_dev_alloc(&driver_platform, &pdev->dev);
+	if (!drm) {
+		err = -ENOMEM;
+		goto err_free;
+	}
+
+	err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
+	if (err < 0)
+		goto err_free;
+
+	drm->platformdev = pdev;
+	platform_set_drvdata(pdev, drm);
+
+	return drm;
+
+err_free:
+	nouveau_object_ref(NULL, (struct nouveau_object **)pobject);
+
+	return ERR_PTR(err);
+}
+
+static int __init
+nouveau_drm_init(void)
+{
+	driver_pci = driver_stub;
+	driver_pci.set_busid = drm_pci_set_busid;
+	driver_platform = driver_stub;
+	driver_platform.set_busid = drm_platform_set_busid;
+
+	nouveau_display_options();
+
+	if (nouveau_modeset == -1) {
+#ifdef CONFIG_VGA_CONSOLE
+		if (vgacon_text_force())
+			nouveau_modeset = 0;
+#endif
+	}
+
+	if (!nouveau_modeset)
+		return 0;
+
+#ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
+	platform_driver_register(&nouveau_platform_driver);
+#endif
+
+	nouveau_register_dsm_handler();
+	return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
+}
+
+static void __exit
+nouveau_drm_exit(void)
+{
+	if (!nouveau_modeset)
+		return;
+
+	drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
+	nouveau_unregister_dsm_handler();
+
+#ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
+	platform_driver_unregister(&nouveau_platform_driver);
+#endif
+}
+
+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");