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/*
* Virtio GPU Device
*
* Copyright Red Hat, Inc. 2013-2014
*
* Authors:
* Dave Airlie <airlied@redhat.com>
* Gerd Hoffmann <kraxel@redhat.com>
*
* This header is BSD licensed so anyone can use the definitions
* to implement compatible drivers/servers:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of IBM nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef VIRTIO_GPU_HW_H
#define VIRTIO_GPU_HW_H
#include <linux/types.h>
#define VIRTIO_GPU_F_VIRGL 0
#define VIRTIO_GPU_F_EDID 1
enum virtio_gpu_ctrl_type {
VIRTIO_GPU_UNDEFINED = 0,
/* 2d commands */
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_HOST_2D,
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,
/* 3d commands */
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,
/* cursor commands */
VIRTIO_GPU_CMD_UPDATE_CURSOR = 0x0300,
VIRTIO_GPU_CMD_MOVE_CURSOR,
/* success responses */
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,
/* error responses */
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,
};
#define VIRTIO_GPU_FLAG_FENCE (1 << 0)
struct virtio_gpu_ctrl_hdr {
__le32 type;
__le32 flags;
__le64 fence_id;
__le32 ctx_id;
__le32 padding;
};
/* 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;
};
/* VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING */
struct virtio_gpu_resource_detach_backing {
struct virtio_gpu_ctrl_hdr hdr;
__le32 resource_id;
__le32 padding;
};
/* VIRTIO_GPU_RESP_OK_DISPLAY_INFO */
#define VIRTIO_GPU_MAX_SCANOUTS 16
struct virtio_gpu_resp_display_info {
struct virtio_gpu_ctrl_hdr hdr;
struct virtio_gpu_display_one {
struct virtio_gpu_rect r;
__le32 enabled;
__le32 flags;
} pmodes[VIRTIO_GPU_MAX_SCANOUTS];
};
/* data passed in the control vq, 3d related */
struct virtio_gpu_box {
__le32 x, y, z;
__le32 w, h, d;
};
/* VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D, VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D */
struct virtio_gpu_transfer_host_3d {
struct virtio_gpu_ctrl_hdr hdr;
struct virtio_gpu_box box;
__le64 offset;
__le32 resource_id;
__le32 level;
__le32 stride;
__le32 layer_stride;
};
/* VIRTIO_GPU_CMD_RESOURCE_CREATE_3D */
#define VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP (1 << 0)
struct virtio_gpu_resource_create_3d {
struct virtio_gpu_ctrl_hdr hdr;
__le32 resource_id;
__le32 target;
__le32 format;
__le32 bind;
__le32 width;
__le32 height;
__le32 depth;
__le32 array_size;
__le32 last_level;
__le32 nr_samples;
__le32 flags;
__le32 padding;
};
/* VIRTIO_GPU_CMD_CTX_CREATE */
struct virtio_gpu_ctx_create {
struct virtio_gpu_ctrl_hdr hdr;
__le32 nlen;
__le32 padding;
char debug_name[64];
};
/* VIRTIO_GPU_CMD_CTX_DESTROY */
struct virtio_gpu_ctx_destroy {
struct virtio_gpu_ctrl_hdr hdr;
};
/* VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE, VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE */
struct virtio_gpu_ctx_resource {
struct virtio_gpu_ctrl_hdr hdr;
__le32 resource_id;
__le32 padding;
};
/* VIRTIO_GPU_CMD_SUBMIT_3D */
struct virtio_gpu_cmd_submit {
struct virtio_gpu_ctrl_hdr hdr;
__le32 size;
__le32 padding;
};
#define VIRTIO_GPU_CAPSET_VIRGL 1
#define VIRTIO_GPU_CAPSET_VIRGL2 2
/* VIRTIO_GPU_CMD_GET_CAPSET_INFO */
struct virtio_gpu_get_capset_info {
struct virtio_gpu_ctrl_hdr hdr;
__le32 capset_index;
__le32 padding;
};
/* VIRTIO_GPU_RESP_OK_CAPSET_INFO */
struct virtio_gpu_resp_capset_info {
struct virtio_gpu_ctrl_hdr hdr;
__le32 capset_id;
__le32 capset_max_version;
__le32 capset_max_size;
__le32 padding;
};
/* VIRTIO_GPU_CMD_GET_CAPSET */
struct virtio_gpu_get_capset {
struct virtio_gpu_ctrl_hdr hdr;
__le32 capset_id;
__le32 capset_version;
};
/* VIRTIO_GPU_RESP_OK_CAPSET */
struct virtio_gpu_resp_capset {
struct virtio_gpu_ctrl_hdr hdr;
__u8 capset_data[];
};
/* VIRTIO_GPU_CMD_GET_EDID */
struct virtio_gpu_cmd_get_edid {
struct virtio_gpu_ctrl_hdr hdr;
__le32 scanout;
__le32 padding;
};
/* VIRTIO_GPU_RESP_OK_EDID */
struct virtio_gpu_resp_edid {
struct virtio_gpu_ctrl_hdr hdr;
__le32 size;
__le32 padding;
__u8 edid[1024];
};
#define VIRTIO_GPU_EVENT_DISPLAY (1 << 0)
struct virtio_gpu_config {
__u32 events_read;
__u32 events_clear;
__u32 num_scanouts;
__u32 num_capsets;
};
/* simple formats for fbcon/X use */
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,
};
#endif