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 * Copyright 2013 Red Hat
 * 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 AUTHORS 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 VIRTGPU_DRM_H
#define VIRTGPU_DRM_H

#include "drm.h"

#if defined(__cplusplus)
extern "C" {
#endif

/* Please note that modifications to all structs defined here are
 * subject to backwards-compatibility constraints.
 *
 * Do not use pointers, use __u64 instead for 32 bit / 64 bit user/kernel
 * compatibility Keep fields aligned to their size
 */

#define DRM_VIRTGPU_MAP         0x01
#define DRM_VIRTGPU_EXECBUFFER  0x02
#define DRM_VIRTGPU_GETPARAM    0x03
#define DRM_VIRTGPU_RESOURCE_CREATE 0x04
#define DRM_VIRTGPU_RESOURCE_INFO     0x05
#define DRM_VIRTGPU_TRANSFER_FROM_HOST 0x06
#define DRM_VIRTGPU_TRANSFER_TO_HOST 0x07
#define DRM_VIRTGPU_WAIT     0x08
#define DRM_VIRTGPU_GET_CAPS  0x09
#define DRM_VIRTGPU_RESOURCE_CREATE_BLOB 0x0a
#define DRM_VIRTGPU_CONTEXT_INIT 0x0b

#define VIRTGPU_EXECBUF_FENCE_FD_IN	0x01
#define VIRTGPU_EXECBUF_FENCE_FD_OUT	0x02
#define VIRTGPU_EXECBUF_RING_IDX	0x04
#define VIRTGPU_EXECBUF_FLAGS  (\
		VIRTGPU_EXECBUF_FENCE_FD_IN |\
		VIRTGPU_EXECBUF_FENCE_FD_OUT |\
		VIRTGPU_EXECBUF_RING_IDX |\
		0)

struct drm_virtgpu_map {
	__u64 offset; /* use for mmap system call */
	__u32 handle;
	__u32 pad;
};

#define VIRTGPU_EXECBUF_SYNCOBJ_RESET		0x01
#define VIRTGPU_EXECBUF_SYNCOBJ_FLAGS ( \
		VIRTGPU_EXECBUF_SYNCOBJ_RESET | \
		0)
struct drm_virtgpu_execbuffer_syncobj {
	__u32 handle;
	__u32 flags;
	__u64 point;
};

/* fence_fd is modified on success if VIRTGPU_EXECBUF_FENCE_FD_OUT flag is set. */
struct drm_virtgpu_execbuffer {
	__u32 flags;
	__u32 size;
	__u64 command; /* void* */
	__u64 bo_handles;
	__u32 num_bo_handles;
	__s32 fence_fd; /* in/out fence fd (see VIRTGPU_EXECBUF_FENCE_FD_IN/OUT) */
	__u32 ring_idx; /* command ring index (see VIRTGPU_EXECBUF_RING_IDX) */
	__u32 syncobj_stride; /* size of @drm_virtgpu_execbuffer_syncobj */
	__u32 num_in_syncobjs;
	__u32 num_out_syncobjs;
	__u64 in_syncobjs;
	__u64 out_syncobjs;
};

#define VIRTGPU_PARAM_3D_FEATURES 1 /* do we have 3D features in the hw */
#define VIRTGPU_PARAM_CAPSET_QUERY_FIX 2 /* do we have the capset fix */
#define VIRTGPU_PARAM_RESOURCE_BLOB 3 /* DRM_VIRTGPU_RESOURCE_CREATE_BLOB */
#define VIRTGPU_PARAM_HOST_VISIBLE 4 /* Host blob resources are mappable */
#define VIRTGPU_PARAM_CROSS_DEVICE 5 /* Cross virtio-device resource sharing  */
#define VIRTGPU_PARAM_CONTEXT_INIT 6 /* DRM_VIRTGPU_CONTEXT_INIT */
#define VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs 7 /* Bitmask of supported capability set ids */
#define VIRTGPU_PARAM_EXPLICIT_DEBUG_NAME 8 /* Ability to set debug name from userspace */

struct drm_virtgpu_getparam {
	__u64 param;
	__u64 value;
};

/* NO_BO flags? NO resource flag? */
/* resource flag for y_0_top */
struct drm_virtgpu_resource_create {
	__u32 target;
	__u32 format;
	__u32 bind;
	__u32 width;
	__u32 height;
	__u32 depth;
	__u32 array_size;
	__u32 last_level;
	__u32 nr_samples;
	__u32 flags;
	__u32 bo_han