1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c
new file mode 100644
index 000000000000..1a1d1e584a7f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2015 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 <bskeggs@redhat.com>
+ */
+#include <core/pci.h>
+#include "priv.h"
+
+static struct nvkm_device_pci *
+nvkm_device_pci(struct nvkm_device *device)
+{
+	return container_of(device, struct nvkm_device_pci, device);
+}
+
+static void
+nvkm_device_pci_fini(struct nvkm_device *device, bool suspend)
+{
+	struct nvkm_device_pci *pdev = nvkm_device_pci(device);
+	if (suspend) {
+		pci_disable_device(pdev->pdev);
+		pdev->suspend = true;
+	}
+}
+
+static int
+nvkm_device_pci_preinit(struct nvkm_device *device)
+{
+	struct nvkm_device_pci *pdev = nvkm_device_pci(device);
+	if (pdev->suspend) {
+		int ret = pci_enable_device(pdev->pdev);
+		if (ret)
+			return ret;
+		pci_set_master(pdev->pdev);
+		pdev->suspend = false;
+	}
+	return 0;
+}
+
+static void *
+nvkm_device_pci_dtor(struct nvkm_device *device)
+{
+	struct nvkm_device_pci *pdev = nvkm_device_pci(device);
+	pci_disable_device(pdev->pdev);
+	return pdev;
+}
+
+static const struct nvkm_device_func
+nvkm_device_pci_func = {
+	.pci = nvkm_device_pci,
+	.dtor = nvkm_device_pci_dtor,
+	.preinit = nvkm_device_pci_preinit,
+	.fini = nvkm_device_pci_fini,
+};
+
+int
+nvkm_device_pci_new(struct pci_dev *pci_dev, const char *cfg, const char *dbg,
+		    bool detect, bool mmio, u64 subdev_mask,
+		    struct nvkm_device **pdevice)
+{
+	struct nvkm_device_pci *pdev;
+	int ret;
+
+	ret = pci_enable_device(pci_dev);
+	if (ret)
+		return ret;
+
+	if (!(pdev = kzalloc(sizeof(*pdev), GFP_KERNEL))) {
+		pci_disable_device(pci_dev);
+		return -ENOMEM;
+	}
+	*pdevice = &pdev->device;
+	pdev->pdev = pci_dev;
+
+	return nvkm_device_ctor(&nvkm_device_pci_func, NULL,
+				pci_dev, NVKM_BUS_PCI,
+				(u64)pci_domain_nr(pci_dev->bus) << 32 |
+				     pci_dev->bus->number << 16 |
+				     PCI_SLOT(pci_dev->devfn) << 8 |
+				     PCI_FUNC(pci_dev->devfn), NULL,
+				cfg, dbg, detect, mmio, subdev_mask,
+				&pdev->device);
+}