From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 8 Sep 2015 01:01:14 -0300 Subject: Linux-libre 4.2-gnu --- drivers/gpu/drm/virtio/virtgpu_drv.h | 352 +++++++++++++++++++++++++++++++++++ 1 file changed, 352 insertions(+) create mode 100644 drivers/gpu/drm/virtio/virtgpu_drv.h (limited to 'drivers/gpu/drm/virtio/virtgpu_drv.h') diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h new file mode 100644 index 000000000..6d4db2dba --- /dev/null +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -0,0 +1,352 @@ +/* + * Copyright (C) 2015 Red Hat, Inc. + * All Rights Reserved. + * + * 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 THE COPYRIGHT OWNER(S) 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. + */ + +#ifndef VIRTIO_DRV_H +#define VIRTIO_DRV_H + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#define DRIVER_NAME "virtio_gpu" +#define DRIVER_DESC "virtio GPU" +#define DRIVER_DATE "0" + +#define DRIVER_MAJOR 0 +#define DRIVER_MINOR 0 +#define DRIVER_PATCHLEVEL 1 + +/* virtgpu_drm_bus.c */ +int drm_virtio_set_busid(struct drm_device *dev, struct drm_master *master); +int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev); + +struct virtio_gpu_object { + struct drm_gem_object gem_base; + uint32_t hw_res_handle; + + struct sg_table *pages; + void *vmap; + bool dumb; + struct ttm_place placement_code; + struct ttm_placement placement; + struct ttm_buffer_object tbo; + struct ttm_bo_kmap_obj kmap; +}; +#define gem_to_virtio_gpu_obj(gobj) \ + container_of((gobj), struct virtio_gpu_object, gem_base) + +struct virtio_gpu_vbuffer; +struct virtio_gpu_device; + +typedef void (*virtio_gpu_resp_cb)(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf); + +struct virtio_gpu_fence_driver { + atomic64_t last_seq; + uint64_t sync_seq; + struct list_head fences; + spinlock_t lock; +}; + +struct virtio_gpu_fence { + struct fence f; + struct virtio_gpu_fence_driver *drv; + struct list_head node; + uint64_t seq; +}; +#define to_virtio_fence(x) \ + container_of(x, struct virtio_gpu_fence, f) + +struct virtio_gpu_vbuffer { + char *buf; + int size; + + void *data_buf; + uint32_t data_size; + + char *resp_buf; + int resp_size; + + virtio_gpu_resp_cb resp_cb; + + struct list_head list; +}; + +struct virtio_gpu_output { + int index; + struct drm_crtc crtc; + struct drm_connector conn; + struct drm_encoder enc; + struct virtio_gpu_display_one info; + struct virtio_gpu_update_cursor cursor; + int cur_x; + int cur_y; +}; +#define drm_crtc_to_virtio_gpu_output(x) \ + container_of(x, struct virtio_gpu_output, crtc) +#define drm_connector_to_virtio_gpu_output(x) \ + container_of(x, struct virtio_gpu_output, conn) +#define drm_encoder_to_virtio_gpu_output(x) \ + container_of(x, struct virtio_gpu_output, enc) + +struct virtio_gpu_framebuffer { + struct drm_framebuffer base; + struct drm_gem_object *obj; + int x1, y1, x2, y2; /* dirty rect */ + spinlock_t dirty_lock; + uint32_t hw_res_handle; +}; +#define to_virtio_gpu_framebuffer(x) \ + container_of(x, struct virtio_gpu_framebuffer, base) + +struct virtio_gpu_mman { + struct ttm_bo_global_ref bo_global_ref; + struct drm_global_reference mem_global_ref; + bool mem_global_referenced; + struct ttm_bo_device bdev; +}; + +struct virtio_gpu_fbdev; + +struct virtio_gpu_queue { + struct virtqueue *vq; + spinlock_t qlock; + wait_queue_head_t ack_queue; + struct work_struct dequeue_work; +}; + +struct virtio_gpu_device { + struct device *dev; + struct drm_device *ddev; + + struct virtio_device *vdev; + + struct virtio_gpu_mman mman; + + /* pointer to fbdev info structure */ + struct virtio_gpu_fbdev *vgfbdev; + struct virtio_gpu_output outputs[VIRTIO_GPU_MAX_SCANOUTS]; + uint32_t num_scanouts; + + struct virtio_gpu_queue ctrlq; + struct virtio_gpu_queue cursorq; + struct list_head free_vbufs; + spinlock_t free_vbufs_lock; + void *vbufs; + bool vqs_ready; + + struct idr resource_idr; + spinlock_t resource_idr_lock; + + wait_queue_head_t resp_wq; + /* current display info */ + spinlock_t display_info_lock; + bool display_info_pending; + + struct virtio_gpu_fence_driver fence_drv; + + struct idr ctx_id_idr; + spinlock_t ctx_id_idr_lock; + + struct work_struct config_changed_work; +}; + +struct virtio_gpu_fpriv { + uint32_t ctx_id; +}; + +/* virtio_ioctl.c */ +#define DRM_VIRTIO_NUM_IOCTLS 10 +extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS]; + +/* virtio_kms.c */ +int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags); +int virtio_gpu_driver_unload(struct drm_device *dev); + +/* virtio_gem.c */ +void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj); +int virtio_gpu_gem_init(struct virtio_gpu_device *vgdev); +void virtio_gpu_gem_fini(struct virtio_gpu_device *vgdev); +int virtio_gpu_gem_create(struct drm_file *file, + struct drm_device *dev, + uint64_t size, + struct drm_gem_object **obj_p, + uint32_t *handle_p); +struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev, + size_t size, bool kernel, + bool pinned); +int virtio_gpu_mode_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, + struct drm_mode_create_dumb *args); +int virtio_gpu_mode_dumb_destroy(struct drm_file *file_priv, + struct drm_device *dev, + uint32_t handle); +int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv, + struct drm_device *dev, + uint32_t handle, uint64_t *offset_p); + +/* virtio_fb */ +#define VIRTIO_GPUFB_CONN_LIMIT 1 +int virtio_gpu_fbdev_init(struct virtio_gpu_device *vgdev); +void virtio_gpu_fbdev_fini(struct virtio_gpu_device *vgdev); +int virtio_gpu_surface_dirty(struct virtio_gpu_framebuffer *qfb, + struct drm_clip_rect *clips, + unsigned num_clips); +/* virtio vg */ +int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev); +void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev); +void virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev, + uint32_t *resid); +void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id); +void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev, + uint32_t resource_id, + uint32_t format, + uint32_t width, + uint32_t height); +void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev, + uint32_t resource_id); +void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev, + uint32_t resource_id, uint64_t offset, + __le32 width, __le32 height, + __le32 x, __le32 y, + struct virtio_gpu_fence **fence); +void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev, + uint32_t resource_id, + uint32_t x, uint32_t y, + uint32_t width, uint32_t height); +void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev, + uint32_t scanout_id, uint32_t resource_id, + uint32_t width, uint32_t height, + uint32_t x, uint32_t y); +int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev, + struct virtio_gpu_object *obj, + uint32_t resource_id, + struct virtio_gpu_fence **fence); +int virtio_gpu_attach_status_page(struct virtio_gpu_device *vgdev); +int virtio_gpu_detach_status_page(struct virtio_gpu_device *vgdev); +void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev, + struct virtio_gpu_output *output); +int virtio_gpu_cmd_get_display_info(struct virtio_gpu_device *vgdev); +void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev, + uint32_t resource_id); +void virtio_gpu_ctrl_ack(struct virtqueue *vq); +void virtio_gpu_cursor_ack(struct virtqueue *vq); +void virtio_gpu_dequeue_ctrl_func(struct work_struct *work); +void virtio_gpu_dequeue_cursor_func(struct work_struct *work); + +/* virtio_gpu_display.c */ +int virtio_gpu_framebuffer_init(struct drm_device *dev, + struct virtio_gpu_framebuffer *vgfb, + struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj); +int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev); +void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev); + +/* virtio_gpu_plane.c */ +struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev, + int index); + +/* virtio_gpu_ttm.c */ +int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev); +void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev); +int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma); + +/* virtio_gpu_fence.c */ +int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, + struct virtio_gpu_ctrl_hdr *cmd_hdr, + struct virtio_gpu_fence **fence); +void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev, + u64 last_seq); + +/* virtio_gpu_object */ +int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, + unsigned long size, bool kernel, bool pinned, + struct virtio_gpu_object **bo_ptr); +int virtio_gpu_object_kmap(struct virtio_gpu_object *bo, void **ptr); +int virtio_gpu_object_get_sg_table(struct virtio_gpu_device *qdev, + struct virtio_gpu_object *bo); +void virtio_gpu_object_free_sg_table(struct virtio_gpu_object *bo); +int virtio_gpu_object_wait(struct virtio_gpu_object *bo, bool no_wait); + +static inline struct virtio_gpu_object* +virtio_gpu_object_ref(struct virtio_gpu_object *bo) +{ + ttm_bo_reference(&bo->tbo); + return bo; +} + +static inline void virtio_gpu_object_unref(struct virtio_gpu_object **bo) +{ + struct ttm_buffer_object *tbo; + + if ((*bo) == NULL) + return; + tbo = &((*bo)->tbo); + ttm_bo_unref(&tbo); + if (tbo == NULL) + *bo = NULL; +} + +static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo) +{ + return drm_vma_node_offset_addr(&bo->tbo.vma_node); +} + +static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo, + bool no_wait) +{ + int r; + + r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL); + if (unlikely(r != 0)) { + if (r != -ERESTARTSYS) { + struct virtio_gpu_device *qdev = + bo->gem_base.dev->dev_private; + dev_err(qdev->dev, "%p reserve failed\n", bo); + } + return r; + } + return 0; +} + +static inline void virtio_gpu_object_unreserve(struct virtio_gpu_object *bo) +{ + ttm_bo_unreserve(&bo->tbo); +} + +/* virgl debufs */ +int virtio_gpu_debugfs_init(struct drm_minor *minor); +void virtio_gpu_debugfs_takedown(struct drm_minor *minor); + +#endif -- cgit v1.2.3-54-g00ecf