include/uapi/linux/virtio_gpu.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/virtio_gpu.h

Extension

.h

Size

11887 bytes

Lines

470

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct virtio_gpu_ctrl_hdr
• struct virtio_gpu_cursor_pos
• struct virtio_gpu_update_cursor
• struct virtio_gpu_rect
• struct virtio_gpu_resource_unref
• struct virtio_gpu_resource_create_2d
• struct virtio_gpu_set_scanout
• struct virtio_gpu_resource_flush
• struct virtio_gpu_transfer_to_host_2d
• struct virtio_gpu_mem_entry
• struct virtio_gpu_resource_attach_backing
• struct virtio_gpu_resource_detach_backing
• struct virtio_gpu_resp_display_info
• struct virtio_gpu_display_one
• struct virtio_gpu_box
• struct virtio_gpu_transfer_host_3d
• struct virtio_gpu_resource_create_3d
• struct virtio_gpu_ctx_create
• struct virtio_gpu_ctx_destroy
• struct virtio_gpu_ctx_resource
• struct virtio_gpu_cmd_submit
• struct virtio_gpu_get_capset_info
• struct virtio_gpu_resp_capset_info
• struct virtio_gpu_get_capset
• struct virtio_gpu_resp_capset
• struct virtio_gpu_cmd_get_edid
• struct virtio_gpu_resp_edid
• struct virtio_gpu_config
• struct virtio_gpu_resource_assign_uuid
• struct virtio_gpu_resp_resource_uuid
• struct virtio_gpu_resource_create_blob
• struct virtio_gpu_set_scanout_blob
• struct virtio_gpu_resource_map_blob
• struct virtio_gpu_resp_map_info
• struct virtio_gpu_resource_unmap_blob
• enum virtio_gpu_ctrl_type
• enum virtio_gpu_shm_id
• enum virtio_gpu_formats

Annotated Snippet

struct virtio_gpu_ctrl_hdr {
	__le32 type;
	__le32 flags;
	__le64 fence_id;
	__le32 ctx_id;
	__u8 ring_idx;
	__u8 padding[3];
};

/* data passed in the cursor vq */

struct virtio_gpu_cursor_pos {
	__le32 scanout_id;
	__le32 x;
	__le32 y;
	__le32 padding;
};

/* VIRTIO_GPU_CMD_UPDATE_CURSOR, VIRTIO_GPU_CMD_MOVE_CURSOR */
struct virtio_gpu_update_cursor {
	struct virtio_gpu_ctrl_hdr hdr;
	struct virtio_gpu_cursor_pos pos;  /* update & move */
	__le32 resource_id;           /* update only */
	__le32 hot_x;                 /* update only */
	__le32 hot_y;                 /* update only */
	__le32 padding;
};

/* data passed in the control vq, 2d related */

struct virtio_gpu_rect {
	__le32 x;
	__le32 y;
	__le32 width;
	__le32 height;
};

/* VIRTIO_GPU_CMD_RESOURCE_UNREF */
struct virtio_gpu_resource_unref {
	struct virtio_gpu_ctrl_hdr hdr;
	__le32 resource_id;
	__le32 padding;
};

/* VIRTIO_GPU_CMD_RESOURCE_CREATE_2D: create a 2d resource with a format */
struct virtio_gpu_resource_create_2d {
	struct virtio_gpu_ctrl_hdr hdr;
	__le32 resource_id;
	__le32 format;
	__le32 width;
	__le32 height;
};

/* VIRTIO_GPU_CMD_SET_SCANOUT */
struct virtio_gpu_set_scanout {
	struct virtio_gpu_ctrl_hdr hdr;
	struct virtio_gpu_rect r;
	__le32 scanout_id;
	__le32 resource_id;
};

/* VIRTIO_GPU_CMD_RESOURCE_FLUSH */
struct virtio_gpu_resource_flush {
	struct virtio_gpu_ctrl_hdr hdr;
	struct virtio_gpu_rect r;
	__le32 resource_id;
	__le32 padding;
};

/* VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D: simple transfer to_host */
struct virtio_gpu_transfer_to_host_2d {
	struct virtio_gpu_ctrl_hdr hdr;
	struct virtio_gpu_rect r;
	__le64 offset;
	__le32 resource_id;
	__le32 padding;
};

struct virtio_gpu_mem_entry {
	__le64 addr;
	__le32 length;
	__le32 padding;
};

/* VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING */
struct virtio_gpu_resource_attach_backing {
	struct virtio_gpu_ctrl_hdr hdr;
	__le32 resource_id;
	__le32 nr_entries;
};

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct virtio_gpu_ctrl_hdr`, `struct virtio_gpu_cursor_pos`, `struct virtio_gpu_update_cursor`, `struct virtio_gpu_rect`, `struct virtio_gpu_resource_unref`, `struct virtio_gpu_resource_create_2d`, `struct virtio_gpu_set_scanout`, `struct virtio_gpu_resource_flush`, `struct virtio_gpu_transfer_to_host_2d`, `struct virtio_gpu_mem_entry`.
• Atlas domain: Core OS / Core Kernel Interface.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.