--- /dev/null
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ * All Rights Reserved.
+ *
+ * Authors:
+ * Dave Airlie <airlied@redhat.com>
+ * Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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.
+ */
+
+#include <linux/module.h>
+#include <linux/console.h>
+#include <linux/pci.h>
+#include "drmP.h"
+#include "drm/drm.h"
+
+#include "virtgpu_drv.h"
+static struct drm_driver driver;
+
+static int virtio_gpu_modeset = -1;
+
+MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
+module_param_named(modeset, virtio_gpu_modeset, int, 0400);
+
+static int virtio_gpu_probe(struct virtio_device *vdev)
+{
+#ifdef CONFIG_VGA_CONSOLE
+ if (vgacon_text_force() && virtio_gpu_modeset == -1)
+ return -EINVAL;
+#endif
+
+ if (virtio_gpu_modeset == 0)
+ return -EINVAL;
+
+ return drm_virtio_init(&driver, vdev);
+}
+
+static void virtio_gpu_remove(struct virtio_device *vdev)
+{
+ struct drm_device *dev = vdev->priv;
+ drm_put_dev(dev);
+}
+
+static void virtio_gpu_config_changed(struct virtio_device *vdev)
+{
+ struct drm_device *dev = vdev->priv;
+ struct virtio_gpu_device *vgdev = dev->dev_private;
+
+ schedule_work(&vgdev->config_changed_work);
+}
+
+static struct virtio_device_id id_table[] = {
+ { VIRTIO_ID_GPU, VIRTIO_DEV_ANY_ID },
+ { 0 },
+};
+
+static unsigned int features[] = {
+#ifdef __LITTLE_ENDIAN
+ /*
+ * Gallium command stream send by virgl is native endian.
+ * Because of that we only support little endian guests on
+ * little endian hosts.
+ */
+ VIRTIO_GPU_F_VIRGL,
+#endif
+};
+static struct virtio_driver virtio_gpu_driver = {
+ .feature_table = features,
+ .feature_table_size = ARRAY_SIZE(features),
+ .driver.name = KBUILD_MODNAME,
+ .driver.owner = THIS_MODULE,
+ .id_table = id_table,
+ .probe = virtio_gpu_probe,
+ .remove = virtio_gpu_remove,
+ .config_changed = virtio_gpu_config_changed
+};
+
+module_virtio_driver(virtio_gpu_driver);
+
+MODULE_DEVICE_TABLE(virtio, id_table);
+MODULE_DESCRIPTION("Virtio GPU driver");
+MODULE_LICENSE("GPL and additional rights");
+MODULE_AUTHOR("Dave Airlie <airlied@redhat.com>");
+MODULE_AUTHOR("Gerd Hoffmann <kraxel@redhat.com>");
+MODULE_AUTHOR("Alon Levy");
+
+static const struct file_operations virtio_gpu_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .mmap = virtio_gpu_mmap,
+ .poll = drm_poll,
+ .read = drm_read,
+ .unlocked_ioctl = drm_ioctl,
+ .release = drm_release,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
+
+static struct drm_driver driver = {
+ .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER,
+ .set_busid = drm_virtio_set_busid,
+ .load = virtio_gpu_driver_load,
+ .unload = virtio_gpu_driver_unload,
+ .open = virtio_gpu_driver_open,
+ .postclose = virtio_gpu_driver_postclose,
+
+ .dumb_create = virtio_gpu_mode_dumb_create,
+ .dumb_map_offset = virtio_gpu_mode_dumb_mmap,
+ .dumb_destroy = virtio_gpu_mode_dumb_destroy,
+
+#if defined(CONFIG_DEBUG_FS)
+ .debugfs_init = virtio_gpu_debugfs_init,
+ .debugfs_cleanup = virtio_gpu_debugfs_takedown,
+#endif
+ .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 = virtgpu_gem_prime_pin,
+ .gem_prime_unpin = virtgpu_gem_prime_unpin,
+ .gem_prime_get_sg_table = virtgpu_gem_prime_get_sg_table,
+ .gem_prime_import_sg_table = virtgpu_gem_prime_import_sg_table,
+ .gem_prime_vmap = virtgpu_gem_prime_vmap,
+ .gem_prime_vunmap = virtgpu_gem_prime_vunmap,
+ .gem_prime_mmap = virtgpu_gem_prime_mmap,
+
+ .gem_free_object = virtio_gpu_gem_free_object,
+ .gem_open_object = virtio_gpu_gem_object_open,
+ .gem_close_object = virtio_gpu_gem_object_close,
+ .fops = &virtio_gpu_driver_fops,
+
+ .ioctls = virtio_gpu_ioctls,
+ .num_ioctls = DRM_VIRTIO_NUM_IOCTLS,
+
+ .name = DRIVER_NAME,
+ .desc = DRIVER_DESC,
+ .date = DRIVER_DATE,
+ .major = DRIVER_MAJOR,
+ .minor = DRIVER_MINOR,
+ .patchlevel = DRIVER_PATCHLEVEL,
+};
Code Review / kvmfornfv.git / blobdiff