virtiogpu.h File Reference

#include <stdint.h>
#include <Drivers/virtio.h>

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Classes
struct	virtio_gpu_ctrl_hdr
struct	virtio_gpu_resource_create_2d
struct	virtio_gpu_resource_attach_backing
struct	virtio_gpu_rect
struct	virtio_gpu_set_scanout
struct	virtio_gpu_transfer_to_host_2d
struct	virtio_gpu_resource_flush
struct	virtio_gpu_config
struct	virtio_gpu_mem_entry

Macros
#define	VIRTIO_GPU_FLAG_FENCE   (1<<0)
#define	VIRTIO_GPU_FLAG_INFO_RING_IDX   (1<<1)
#define	VIRTIO_GPU_CREATE_RESOURCE_2D   0x200
#define	VIRTIO_GPU_ATTACH_BACKING   0x201
#define	VIRTIO_GPU_TRANSFER_TO_HOST2D   0x202
#define	VIRTIO_GPU_FLUSH   0x203
#define	VIRTIO_GPU_GET_SCREEN_RSRC_ID   0x204

Enumerations
enum	virtio_gpu_ctrl_type {   VIRTIO_GPU_CMD_GET_DISPLAY_INFO = 0x0100 , VIRTIO_GPU_CMD_RESOURCE_CREATE_2D , VIRTIO_GPU_CMD_RESOURCE_UNREF , VIRTIO_GPU_CMD_SET_SCANOUT ,   VIRTIO_GPU_CMD_RESOURCE_FLUSH , VIRTIO_GPU_CMD_TRANSFER_TO_HOST2D , VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING , VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING ,   VIRTIO_GPU_CMD_GET_CAPSET_INFO , VIRTIO_GPU_CMD_GET_CAPSET , VIRTIO_GPU_CMD_GET_EDID , VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID ,   VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB , VIRTIO_GPU_CMD_SET_SCANOUT_BLOB , VIRTIO_GPU_CMD_CTX_CREATE = 0x0200 , VIRTIO_GPU_CMD_CTX_DESTROY ,   VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE , VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE , VIRTIO_GPU_CMD_RESOURCE_CREATE_3D , VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D ,   VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D , VIRTIO_GPU_CMD_SUBMIT_3D , VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB , VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB ,   VIRTIO_GPU_CMD_UPDATE_CURSOR = 0x0300 , VIRTIO_GPU_CMD_MOVE_CURSOR , VIRTIO_GPU_RESP_OK_NODATA = 0x1100 , VIRTIO_GPU_RESP_OK_DISPLAY_INFO ,   VIRTIO_GPU_RESP_OK_CAPSET_INFO , VIRTIO_GPU_RESP_OK_CAPSET , VIRTIO_GPU_RESP_OK_EDID , VIRTIO_GPU_RESP_OK_RESOURCE_UUID ,   VIRTIO_GPU_RESP_OK_MAP_INFO , VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200 , VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY , VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID ,   VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID , VIRTIO_GPU_RESP_ERR_INVALID_CONTEXT_ID , VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER }
enum	virtio_gpu_formats {   VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM = 1 , VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM = 2 , VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM = 3 , VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM = 4 ,   VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM = 67 , VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM = 68 , VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM = 121 , VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM = 134 }

Functions
bool	gpu_is_virgl_supported ()
	gpu_is_virgl_supported – returns if virgl is supported by host
bool	gpu_is_edid_supported ()
	gpu_is_edid_supported – returns if edid blob is supported by host
void	gpu_execute_command (VirtioCommonCfg *cfg, void *cmd, size_t len)
	gpu_execute_command – submit a command to gpu
int	gpu_allocate_resource_id ()
	gpu_allocate_resource_id – allocates resource for commands
void	gpu_attach_back_cmd (VirtioCommonCfg *cfg, void *req, uint32_t len1, void *req2, uint32_t len2)
	gpu_attach_back_cmd – attach backing stroe command needs two descriptor previous gpu_execute_command won't satisfy this
VirtioCommonCfg *	gpu_get_config_pointer ()
	gpu_get_config_pointer – return the pointer virtio common config descriptor from pcie

Macro Definition Documentation

VIRTIO_GPU_ATTACH_BACKING

#define VIRTIO_GPU_ATTACH_BACKING   0x201

VIRTIO_GPU_CREATE_RESOURCE_2D

#define VIRTIO_GPU_CREATE_RESOURCE_2D   0x200

VIRTIO_GPU_FLAG_FENCE

#define VIRTIO_GPU_FLAG_FENCE   (1<<0)

VIRTIO_GPU_FLAG_INFO_RING_IDX

#define VIRTIO_GPU_FLAG_INFO_RING_IDX   (1<<1)

VIRTIO_GPU_FLUSH

#define VIRTIO_GPU_FLUSH   0x203

VIRTIO_GPU_GET_SCREEN_RSRC_ID

#define VIRTIO_GPU_GET_SCREEN_RSRC_ID   0x204

VIRTIO_GPU_TRANSFER_TO_HOST2D

#define VIRTIO_GPU_TRANSFER_TO_HOST2D   0x202

Enumeration Type Documentation

virtio_gpu_ctrl_type

enum virtio_gpu_ctrl_type

Enumerator
VIRTIO_GPU_CMD_GET_DISPLAY_INFO
VIRTIO_GPU_CMD_RESOURCE_CREATE_2D
VIRTIO_GPU_CMD_RESOURCE_UNREF
VIRTIO_GPU_CMD_SET_SCANOUT
VIRTIO_GPU_CMD_RESOURCE_FLUSH
VIRTIO_GPU_CMD_TRANSFER_TO_HOST2D
VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING
VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING
VIRTIO_GPU_CMD_GET_CAPSET_INFO
VIRTIO_GPU_CMD_GET_CAPSET
VIRTIO_GPU_CMD_GET_EDID
VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID
VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB
VIRTIO_GPU_CMD_SET_SCANOUT_BLOB
VIRTIO_GPU_CMD_CTX_CREATE
VIRTIO_GPU_CMD_CTX_DESTROY
VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE
VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE
VIRTIO_GPU_CMD_RESOURCE_CREATE_3D
VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D
VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D
VIRTIO_GPU_CMD_SUBMIT_3D
VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB
VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB
VIRTIO_GPU_CMD_UPDATE_CURSOR
VIRTIO_GPU_CMD_MOVE_CURSOR
VIRTIO_GPU_RESP_OK_NODATA
VIRTIO_GPU_RESP_OK_DISPLAY_INFO
VIRTIO_GPU_RESP_OK_CAPSET_INFO
VIRTIO_GPU_RESP_OK_CAPSET
VIRTIO_GPU_RESP_OK_EDID
VIRTIO_GPU_RESP_OK_RESOURCE_UUID
VIRTIO_GPU_RESP_OK_MAP_INFO
VIRTIO_GPU_RESP_ERR_UNSPEC
VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY
VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID
VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID
VIRTIO_GPU_RESP_ERR_INVALID_CONTEXT_ID
VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER

virtio_gpu_formats

enum virtio_gpu_formats

Enumerator
VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM
VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM
VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM
VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM
VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM
VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM
VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM
VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM

Function Documentation

gpu_allocate_resource_id()

int gpu_allocate_resource_id ( )

extern

gpu_allocate_resource_id – allocates resource for commands

Returns

newly allocated resource id

gpu_attach_back_cmd()

void gpu_attach_back_cmd ( VirtioCommonCfg *  cfg, void *  req, uint32_t  len1, void *  req2, uint32_t  len2  )

extern

gpu_attach_back_cmd – attach backing stroe command needs two descriptor previous gpu_execute_command won't satisfy this

Parameters

cfg	– pointer to virtio common config
req	– pointer to request command one
len1	– request command one length
req2	– pointer to request command two
len2	– request command two length

gpu_execute_command()

void gpu_execute_command ( VirtioCommonCfg *  cfg, void *  cmd, size_t  len  )

extern

gpu_execute_command – submit a command to gpu

Parameters

cfg	– pointer to virtio common config
cmd	– Pointer to command struct
len	– total length of the command

gpu_get_config_pointer()

VirtioCommonCfg * gpu_get_config_pointer ( )

extern

gpu_get_config_pointer – return the pointer virtio common config descriptor from pcie

Returns

system config descriptor from pcie config space

gpu_is_edid_supported()

bool gpu_is_edid_supported ( )

extern

gpu_is_edid_supported – returns if edid blob is supported by host

Returns

true if supported, false if not supported

gpu_is_virgl_supported()

bool gpu_is_virgl_supported ( )

extern

gpu_is_virgl_supported – returns if virgl is supported by host

Returns

true if supported, false if not supported