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 /**************************************************************************
  *
  * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
  * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  * THE COPYRIGHT HOLDERS, 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 __VMWGFX_DRM_H__
 #define __VMWGFX_DRM_H__
 
 #include "drm.h"
 
 #if defined(__cplusplus)
 extern "C" {
 #endif
 
 #define DRM_VMW_MAX_SURFACE_FACES 6
 #define DRM_VMW_MAX_MIP_LEVELS 24
 
 
 #define DRM_VMW_GET_PARAM            0
 #define DRM_VMW_ALLOC_DMABUF         1
 #define DRM_VMW_UNREF_DMABUF         2
 #define DRM_VMW_HANDLE_CLOSE         2
 #define DRM_VMW_CURSOR_BYPASS        3
 /* guarded by DRM_VMW_PARAM_NUM_STREAMS != 0*/
 #define DRM_VMW_CONTROL_STREAM       4
 #define DRM_VMW_CLAIM_STREAM         5
 #define DRM_VMW_UNREF_STREAM         6
 /* guarded by DRM_VMW_PARAM_3D == 1 */
 #define DRM_VMW_CREATE_CONTEXT       7
 #define DRM_VMW_UNREF_CONTEXT        8
 #define DRM_VMW_CREATE_SURFACE       9
 #define DRM_VMW_UNREF_SURFACE        10
 #define DRM_VMW_REF_SURFACE          11
 #define DRM_VMW_EXECBUF              12
 #define DRM_VMW_GET_3D_CAP           13
 #define DRM_VMW_FENCE_WAIT           14
 #define DRM_VMW_FENCE_SIGNALED       15
 #define DRM_VMW_FENCE_UNREF          16
 #define DRM_VMW_FENCE_EVENT          17
 #define DRM_VMW_PRESENT              18
 #define DRM_VMW_PRESENT_READBACK     19
 #define DRM_VMW_UPDATE_LAYOUT        20
 #define DRM_VMW_CREATE_SHADER        21
 #define DRM_VMW_UNREF_SHADER         22
 #define DRM_VMW_GB_SURFACE_CREATE    23
 #define DRM_VMW_GB_SURFACE_REF       24
 #define DRM_VMW_SYNCCPU              25
 #define DRM_VMW_CREATE_EXTENDED_CONTEXT 26
 
 /*************************************************************************/
 /**
  * DRM_VMW_GET_PARAM - get device information.
  *
  * DRM_VMW_PARAM_FIFO_OFFSET:
  * Offset to use to map the first page of the FIFO read-only.
  * The fifo is mapped using the mmap() system call on the drm device.
  *
  * DRM_VMW_PARAM_OVERLAY_IOCTL:
  * Does the driver support the overlay ioctl.
  */
 
 #define DRM_VMW_PARAM_NUM_STREAMS      0
 #define DRM_VMW_PARAM_NUM_FREE_STREAMS 1
 #define DRM_VMW_PARAM_3D               2
 #define DRM_VMW_PARAM_HW_CAPS          3
 #define DRM_VMW_PARAM_FIFO_CAPS        4
 #define DRM_VMW_PARAM_MAX_FB_SIZE      5
 #define DRM_VMW_PARAM_FIFO_HW_VERSION  6
 #define DRM_VMW_PARAM_MAX_SURF_MEMORY  7
 #define DRM_VMW_PARAM_3D_CAPS_SIZE     8
 #define DRM_VMW_PARAM_MAX_MOB_MEMORY   9
 #define DRM_VMW_PARAM_MAX_MOB_SIZE     10
 #define DRM_VMW_PARAM_SCREEN_TARGET    11
 #define DRM_VMW_PARAM_DX               12
 
 /**
  * enum drm_vmw_handle_type - handle type for ref ioctls
  *
  */
 enum drm_vmw_handle_type {
     DRM_VMW_HANDLE_LEGACY = 0,
     DRM_VMW_HANDLE_PRIME = 1
 };
 
 /**
  * struct drm_vmw_getparam_arg
  *
  * @value: Returned value. //Out
  * @param: Parameter to query. //In.
  *
  * Argument to the DRM_VMW_GET_PARAM Ioctl.
  */
 
 struct drm_vmw_getparam_arg {
     __u64 value;
     __u32 param;
     __u32 pad64;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_CREATE_CONTEXT - Create a host context.
  *
  * Allocates a device unique context id, and queues a create context command
  * for the host. Does not wait for host completion.
  */
 
 /**
  * struct drm_vmw_context_arg
  *
  * @cid: Device unique context ID.
  *
  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
  */
 
 struct drm_vmw_context_arg {
     __s32 cid;
     __u32 pad64;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_UNREF_CONTEXT - Create a host context.
  *
  * Frees a global context id, and queues a destroy host command for the host.
  * Does not wait for host completion. The context ID can be used directly
  * in the command stream and shows up as the same context ID on the host.
  */
 
 /*************************************************************************/
 /**
  * DRM_VMW_CREATE_SURFACE - Create a host suface.
  *
  * Allocates a device unique surface id, and queues a create surface command
  * for the host. Does not wait for host completion. The surface ID can be
  * used directly in the command stream and shows up as the same surface
  * ID on the host.
  */
 
 /**
  * struct drm_wmv_surface_create_req
  *
  * @flags: Surface flags as understood by the host.
  * @format: Surface format as understood by the host.
  * @mip_levels: Number of mip levels for each face.
  * An unused face should have 0 encoded.
  * @size_addr: Address of a user-space array of sruct drm_vmw_size
  * cast to an __u64 for 32-64 bit compatibility.
  * The size of the array should equal the total number of mipmap levels.
  * @shareable: Boolean whether other clients (as identified by file descriptors)
  * may reference this surface.
  * @scanout: Boolean whether the surface is intended to be used as a
  * scanout.
  *
  * Input data to the DRM_VMW_CREATE_SURFACE Ioctl.
  * Output data from the DRM_VMW_REF_SURFACE Ioctl.
  */
 
 struct drm_vmw_surface_create_req {
     __u32 flags;
     __u32 format;
     __u32 mip_levels[DRM_VMW_MAX_SURFACE_FACES];
     __u64 size_addr;
     __s32 shareable;
     __s32 scanout;
 };
 
 /**
  * struct drm_wmv_surface_arg
  *
  * @sid: Surface id of created surface or surface to destroy or reference.
  * @handle_type: Handle type for DRM_VMW_REF_SURFACE Ioctl.
  *
  * Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
  * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
  * Input argument to the DRM_VMW_REF_SURFACE Ioctl.
  */
 
 struct drm_vmw_surface_arg {
     __s32 sid;
     enum drm_vmw_handle_type handle_type;
 };
 
 /**
  * struct drm_vmw_size ioctl.
  *
  * @width - mip level width
  * @height - mip level height
  * @depth - mip level depth
  *
  * Description of a mip level.
  * Input data to the DRM_WMW_CREATE_SURFACE Ioctl.
  */
 
 struct drm_vmw_size {
     __u32 width;
     __u32 height;
     __u32 depth;
     __u32 pad64;
 };
 
 /**
  * union drm_vmw_surface_create_arg
  *
  * @rep: Output data as described above.
  * @req: Input data as described above.
  *
  * Argument to the DRM_VMW_CREATE_SURFACE Ioctl.
  */
 
 union drm_vmw_surface_create_arg {
     struct drm_vmw_surface_arg rep;
     struct drm_vmw_surface_create_req req;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_REF_SURFACE - Reference a host surface.
  *
  * Puts a reference on a host surface with a give sid, as previously
  * returned by the DRM_VMW_CREATE_SURFACE ioctl.
  * A reference will make sure the surface isn't destroyed while we hold
  * it and will allow the calling client to use the surface ID in the command
  * stream.
  *
  * On successful return, the Ioctl returns the surface information given
  * in the DRM_VMW_CREATE_SURFACE ioctl.
  */
 
 /**
  * union drm_vmw_surface_reference_arg
  *
  * @rep: Output data as described above.
  * @req: Input data as described above.
  *
  * Argument to the DRM_VMW_REF_SURFACE Ioctl.
  */
 
 union drm_vmw_surface_reference_arg {
     struct drm_vmw_surface_create_req rep;
     struct drm_vmw_surface_arg req;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_UNREF_SURFACE - Unreference a host surface.
  *
  * Clear a reference previously put on a host surface.
  * When all references are gone, including the one implicitly placed
  * on creation,
  * a destroy surface command will be queued for the host.
  * Does not wait for completion.
  */
 
 /*************************************************************************/
 /**
  * DRM_VMW_EXECBUF
  *
  * Submit a command buffer for execution on the host, and return a
  * fence seqno that when signaled, indicates that the command buffer has
  * executed.
  */
 
 /**
  * struct drm_vmw_execbuf_arg
  *
  * @commands: User-space address of a command buffer cast to an __u64.
  * @command-size: Size in bytes of the command buffer.
  * @throttle-us: Sleep until software is less than @throttle_us
  * microseconds ahead of hardware. The driver may round this value
  * to the nearest kernel tick.
  * @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an
  * __u64.
  * @version: Allows expanding the execbuf ioctl parameters without breaking
  * backwards compatibility, since user-space will always tell the kernel
  * which version it uses.
  * @flags: Execbuf flags.
  * @imported_fence_fd:  FD for a fence imported from another device
  *
  * Argument to the DRM_VMW_EXECBUF Ioctl.
  */
 
 #define DRM_VMW_EXECBUF_VERSION 2
 
 #define DRM_VMW_EXECBUF_FLAG_IMPORT_FENCE_FD (1 << 0)
 #define DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD (1 << 1)
 
 struct drm_vmw_execbuf_arg {
     __u64 commands;
     __u32 command_size;
     __u32 throttle_us;
     __u64 fence_rep;
     __u32 version;
     __u32 flags;
     __u32 context_handle;
     __s32 imported_fence_fd;
 };
 
 /**
  * struct drm_vmw_fence_rep
  *
  * @handle: Fence object handle for fence associated with a command submission.
  * @mask: Fence flags relevant for this fence object.
  * @seqno: Fence sequence number in fifo. A fence object with a lower
  * seqno will signal the EXEC flag before a fence object with a higher
  * seqno. This can be used by user-space to avoid kernel calls to determine
  * whether a fence has signaled the EXEC flag. Note that @seqno will
  * wrap at 32-bit.
  * @passed_seqno: The highest seqno number processed by the hardware
  * so far. This can be used to mark user-space fence objects as signaled, and
  * to determine whether a fence seqno might be stale.
  * @fd: FD associated with the fence, -1 if not exported
  * @error: This member should've been set to -EFAULT on submission.
  * The following actions should be take on completion:
  * error == -EFAULT: Fence communication failed. The host is synchronized.
  * Use the last fence id read from the FIFO fence register.
  * error != 0 && error != -EFAULT:
  * Fence submission failed. The host is synchronized. Use the fence_seq member.
  * error == 0: All is OK, The host may not be synchronized.
  * Use the fence_seq member.
  *
  * Input / Output data to the DRM_VMW_EXECBUF Ioctl.
  */
 
 struct drm_vmw_fence_rep {
     __u32 handle;
     __u32 mask;
     __u32 seqno;
     __u32 passed_seqno;
     __s32 fd;
     __s32 error;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_ALLOC_DMABUF
  *
  * Allocate a DMA buffer that is visible also to the host.
  * NOTE: The buffer is
  * identified by a handle and an offset, which are private to the guest, but
  * usable in the command stream. The guest kernel may translate these
  * and patch up the command stream accordingly. In the future, the offset may
  * be zero at all times, or it may disappear from the interface before it is
  * fixed.
  *
  * The DMA buffer may stay user-space mapped in the guest at all times,
  * and is thus suitable for sub-allocation.
  *
  * DMA buffers are mapped using the mmap() syscall on the drm device.
  */
 
 /**
  * struct drm_vmw_alloc_dmabuf_req
  *
  * @size: Required minimum size of the buffer.
  *
  * Input data to the DRM_VMW_ALLOC_DMABUF Ioctl.
  */
 
 struct drm_vmw_alloc_dmabuf_req {
     __u32 size;
     __u32 pad64;
 };
 
 /**
  * struct drm_vmw_dmabuf_rep
  *
  * @map_handle: Offset to use in the mmap() call used to map the buffer.
  * @handle: Handle unique to this buffer. Used for unreferencing.
  * @cur_gmr_id: GMR id to use in the command stream when this buffer is
  * referenced. See not above.
  * @cur_gmr_offset: Offset to use in the command stream when this buffer is
  * referenced. See note above.
  *
  * Output data from the DRM_VMW_ALLOC_DMABUF Ioctl.
  */
 
 struct drm_vmw_dmabuf_rep {
     __u64 map_handle;
     __u32 handle;
     __u32 cur_gmr_id;
     __u32 cur_gmr_offset;
     __u32 pad64;
 };
 
 /**
  * union drm_vmw_dmabuf_arg
  *
  * @req: Input data as described above.
  * @rep: Output data as described above.
  *
  * Argument to the DRM_VMW_ALLOC_DMABUF Ioctl.
  */
 
 union drm_vmw_alloc_dmabuf_arg {
     struct drm_vmw_alloc_dmabuf_req req;
     struct drm_vmw_dmabuf_rep rep;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_UNREF_DMABUF - Free a DMA buffer.
  *
  */
 
 /**
  * struct drm_vmw_unref_dmabuf_arg
  *
  * @handle: Handle indicating what buffer to free. Obtained from the
  * DRM_VMW_ALLOC_DMABUF Ioctl.
  *
  * Argument to the DRM_VMW_UNREF_DMABUF Ioctl.
  */
 
 struct drm_vmw_unref_dmabuf_arg {
     __u32 handle;
     __u32 pad64;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_CONTROL_STREAM - Control overlays, aka streams.
  *
  * This IOCTL controls the overlay units of the svga device.
  * The SVGA overlay units does not work like regular hardware units in
  * that they do not automatically read back the contents of the given dma
  * buffer. But instead only read back for each call to this ioctl, and
  * at any point between this call being made and a following call that
  * either changes the buffer or disables the stream.
  */
 
 /**
  * struct drm_vmw_rect
  *
  * Defines a rectangle. Used in the overlay ioctl to define
  * source and destination rectangle.
  */
 
 struct drm_vmw_rect {
     __s32 x;
     __s32 y;
     __u32 w;
     __u32 h;
 };
 
 /**
  * struct drm_vmw_control_stream_arg
  *
  * @stream_id: Stearm to control
  * @enabled: If false all following arguments are ignored.
  * @handle: Handle to buffer for getting data from.
  * @format: Format of the overlay as understood by the host.
  * @width: Width of the overlay.
  * @height: Height of the overlay.
  * @size: Size of the overlay in bytes.
  * @pitch: Array of pitches, the two last are only used for YUV12 formats.
  * @offset: Offset from start of dma buffer to overlay.
  * @src: Source rect, must be within the defined area above.
  * @dst: Destination rect, x and y may be negative.
  *
  * Argument to the DRM_VMW_CONTROL_STREAM Ioctl.
  */
 
 struct drm_vmw_control_stream_arg {
     __u32 stream_id;
     __u32 enabled;
 
     __u32 flags;
     __u32 color_key;
 
     __u32 handle;
     __u32 offset;
     __s32 format;
     __u32 size;
     __u32 width;
     __u32 height;
     __u32 pitch[3];
 
     __u32 pad64;
     struct drm_vmw_rect src;
     struct drm_vmw_rect dst;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_CURSOR_BYPASS - Give extra information about cursor bypass.
  *
  */
 
 #define DRM_VMW_CURSOR_BYPASS_ALL    (1 << 0)
 #define DRM_VMW_CURSOR_BYPASS_FLAGS       (1)
 
 /**
  * struct drm_vmw_cursor_bypass_arg
  *
  * @flags: Flags.
  * @crtc_id: Crtc id, only used if DMR_CURSOR_BYPASS_ALL isn't passed.
  * @xpos: X position of cursor.
  * @ypos: Y position of cursor.
  * @xhot: X hotspot.
  * @yhot: Y hotspot.
  *
  * Argument to the DRM_VMW_CURSOR_BYPASS Ioctl.
  */
 
 struct drm_vmw_cursor_bypass_arg {
     __u32 flags;
     __u32 crtc_id;
     __s32 xpos;
     __s32 ypos;
     __s32 xhot;
     __s32 yhot;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_CLAIM_STREAM - Claim a single stream.
  */
 
 /**
  * struct drm_vmw_context_arg
  *
  * @stream_id: Device unique context ID.
  *
  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
  */
 
 struct drm_vmw_stream_arg {
     __u32 stream_id;
     __u32 pad64;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_UNREF_STREAM - Unclaim a stream.
  *
  * Return a single stream that was claimed by this process. Also makes
  * sure that the stream has been stopped.
  */
 
 /*************************************************************************/
 /**
  * DRM_VMW_GET_3D_CAP
  *
  * Read 3D capabilities from the FIFO
  *
  */
 
 /**
  * struct drm_vmw_get_3d_cap_arg
  *
  * @buffer: Pointer to a buffer for capability data, cast to an __u64
  * @size: Max size to copy
  *
  * Input argument to the DRM_VMW_GET_3D_CAP_IOCTL
  * ioctls.
  */
 
 struct drm_vmw_get_3d_cap_arg {
     __u64 buffer;
     __u32 max_size;
     __u32 pad64;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_FENCE_WAIT
  *
  * Waits for a fence object to signal. The wait is interruptible, so that
  * signals may be delivered during the interrupt. The wait may timeout,
  * in which case the calls returns -EBUSY. If the wait is restarted,
  * that is restarting without resetting @cookie_valid to zero,
  * the timeout is computed from the first call.
  *
  * The flags argument to the DRM_VMW_FENCE_WAIT ioctl indicates what to wait
  * on:
  * DRM_VMW_FENCE_FLAG_EXEC: All commands ahead of the fence in the command
  * stream
  * have executed.
  * DRM_VMW_FENCE_FLAG_QUERY: All query results resulting from query finish
  * commands
  * in the buffer given to the EXECBUF ioctl returning the fence object handle
  * are available to user-space.
  *
  * DRM_VMW_WAIT_OPTION_UNREF: If this wait option is given, and the
  * fenc wait ioctl returns 0, the fence object has been unreferenced after
  * the wait.
  */
 
 #define DRM_VMW_FENCE_FLAG_EXEC   (1 << 0)
 #define DRM_VMW_FENCE_FLAG_QUERY  (1 << 1)
 
 #define DRM_VMW_WAIT_OPTION_UNREF (1 << 0)
 
 /**
  * struct drm_vmw_fence_wait_arg
  *
  * @handle: Fence object handle as returned by the DRM_VMW_EXECBUF ioctl.
  * @cookie_valid: Must be reset to 0 on first call. Left alone on restart.
  * @kernel_cookie: Set to 0 on first call. Left alone on restart.
  * @timeout_us: Wait timeout in microseconds. 0 for indefinite timeout.
  * @lazy: Set to 1 if timing is not critical. Allow more than a kernel tick
  * before returning.
  * @flags: Fence flags to wait on.
  * @wait_options: Options that control the behaviour of the wait ioctl.
  *
  * Input argument to the DRM_VMW_FENCE_WAIT ioctl.
  */
 
 struct drm_vmw_fence_wait_arg {
     __u32 handle;
     __s32  cookie_valid;
     __u64 kernel_cookie;
     __u64 timeout_us;
     __s32 lazy;
     __s32 flags;
     __s32 wait_options;
     __s32 pad64;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_FENCE_SIGNALED
  *
  * Checks if a fence object is signaled..
  */
 
 /**
  * struct drm_vmw_fence_signaled_arg
  *
  * @handle: Fence object handle as returned by the DRM_VMW_EXECBUF ioctl.
  * @flags: Fence object flags input to DRM_VMW_FENCE_SIGNALED ioctl
  * @signaled: Out: Flags signaled.
  * @sequence: Out: Highest sequence passed so far. Can be used to signal the
  * EXEC flag of user-space fence objects.
  *
  * Input/Output argument to the DRM_VMW_FENCE_SIGNALED and DRM_VMW_FENCE_UNREF
  * ioctls.
  */
 
 struct drm_vmw_fence_signaled_arg {
      __u32 handle;
      __u32 flags;
      __s32 signaled;
      __u32 passed_seqno;
      __u32 signaled_flags;
      __u32 pad64;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_FENCE_UNREF
  *
  * Unreferences a fence object, and causes it to be destroyed if there are no
  * other references to it.
  *
  */
 
 /**
  * struct drm_vmw_fence_arg
  *
  * @handle: Fence object handle as returned by the DRM_VMW_EXECBUF ioctl.
  *
  * Input/Output argument to the DRM_VMW_FENCE_UNREF ioctl..
  */
 
 struct drm_vmw_fence_arg {
      __u32 handle;
      __u32 pad64;
 };
 
 
 /*************************************************************************/
 /**
  * DRM_VMW_FENCE_EVENT
  *
  * Queues an event on a fence to be delivered on the drm character device
  * when the fence has signaled the DRM_VMW_FENCE_FLAG_EXEC flag.
  * Optionally the approximate time when the fence signaled is
  * given by the event.
  */
 
 /*
  * The event type
  */
 #define DRM_VMW_EVENT_FENCE_SIGNALED 0x80000000
 
 struct drm_vmw_event_fence {
     struct drm_event base;
     __u64 user_data;
     __u32 tv_sec;
     __u32 tv_usec;
 };
 
 /*
  * Flags that may be given to the command.
  */
 /* Request fence signaled time on the event. */
 #define DRM_VMW_FE_FLAG_REQ_TIME (1 << 0)
 
 /**
  * struct drm_vmw_fence_event_arg
  *
  * @fence_rep: Pointer to fence_rep structure cast to __u64 or 0 if
  * the fence is not supposed to be referenced by user-space.
  * @user_info: Info to be delivered with the event.
  * @handle: Attach the event to this fence only.
  * @flags: A set of flags as defined above.
  */
 struct drm_vmw_fence_event_arg {
     __u64 fence_rep;
     __u64 user_data;
     __u32 handle;
     __u32 flags;
 };
 
 
 /*************************************************************************/
 /**
  * DRM_VMW_PRESENT
  *
  * Executes an SVGA present on a given fb for a given surface. The surface
  * is placed on the framebuffer. Cliprects are given relative to the given
  * point (the point disignated by dest_{x|y}).
  *
  */
 
 /**
  * struct drm_vmw_present_arg
  * @fb_id: framebuffer id to present / read back from.
  * @sid: Surface id to present from.
  * @dest_x: X placement coordinate for surface.
  * @dest_y: Y placement coordinate for surface.
  * @clips_ptr: Pointer to an array of clip rects cast to an __u64.
  * @num_clips: Number of cliprects given relative to the framebuffer origin,
  * in the same coordinate space as the frame buffer.
  * @pad64: Unused 64-bit padding.
  *
  * Input argument to the DRM_VMW_PRESENT ioctl.
  */
 
 struct drm_vmw_present_arg {
     __u32 fb_id;
     __u32 sid;
     __s32 dest_x;
     __s32 dest_y;
     __u64 clips_ptr;
     __u32 num_clips;
     __u32 pad64;
 };
 
 
 /*************************************************************************/
 /**
  * DRM_VMW_PRESENT_READBACK
  *
  * Executes an SVGA present readback from a given fb to the dma buffer
  * currently bound as the fb. If there is no dma buffer bound to the fb,
  * an error will be returned.
  *
  */
 
 /**
  * struct drm_vmw_present_arg
  * @fb_id: fb_id to present / read back from.
  * @num_clips: Number of cliprects.
  * @clips_ptr: Pointer to an array of clip rects cast to an __u64.
  * @fence_rep: Pointer to a struct drm_vmw_fence_rep, cast to an __u64.
  * If this member is NULL, then the ioctl should not return a fence.
  */
 
 struct drm_vmw_present_readback_arg {
      __u32 fb_id;
      __u32 num_clips;
      __u64 clips_ptr;
      __u64 fence_rep;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_UPDATE_LAYOUT - Update layout
  *
  * Updates the preferred modes and connection status for connectors. The
  * command consists of one drm_vmw_update_layout_arg pointing to an array
  * of num_outputs drm_vmw_rect's.
  */
 
 /**
  * struct drm_vmw_update_layout_arg
  *
  * @num_outputs: number of active connectors
  * @rects: pointer to array of drm_vmw_rect cast to an __u64
  *
  * Input argument to the DRM_VMW_UPDATE_LAYOUT Ioctl.
  */
 struct drm_vmw_update_layout_arg {
     __u32 num_outputs;
     __u32 pad64;
     __u64 rects;
 };
 
 
 /*************************************************************************/
 /**
  * DRM_VMW_CREATE_SHADER - Create shader
  *
  * Creates a shader and optionally binds it to a dma buffer containing
  * the shader byte-code.
  */
 
 /**
  * enum drm_vmw_shader_type - Shader types
  */
 enum drm_vmw_shader_type {
     drm_vmw_shader_type_vs = 0,
     drm_vmw_shader_type_ps,
 };
 
 
 /**
  * struct drm_vmw_shader_create_arg
  *
  * @shader_type: Shader type of the shader to create.
  * @size: Size of the byte-code in bytes.
  * where the shader byte-code starts
  * @buffer_handle: Buffer handle identifying the buffer containing the
  * shader byte-code
  * @shader_handle: On successful completion contains a handle that
  * can be used to subsequently identify the shader.
  * @offset: Offset in bytes into the buffer given by @buffer_handle,
  *
  * Input / Output argument to the DRM_VMW_CREATE_SHADER Ioctl.
  */
 struct drm_vmw_shader_create_arg {
     enum drm_vmw_shader_type shader_type;
     __u32 size;
     __u32 buffer_handle;
     __u32 shader_handle;
     __u64 offset;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_UNREF_SHADER - Unreferences a shader
  *
  * Destroys a user-space reference to a shader, optionally destroying
  * it.
  */
 
 /**
  * struct drm_vmw_shader_arg
  *
  * @handle: Handle identifying the shader to destroy.
  *
  * Input argument to the DRM_VMW_UNREF_SHADER ioctl.
  */
 struct drm_vmw_shader_arg {
     __u32 handle;
     __u32 pad64;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_GB_SURFACE_CREATE - Create a host guest-backed surface.
  *
  * Allocates a surface handle and queues a create surface command
  * for the host on the first use of the surface. The surface ID can
  * be used as the surface ID in commands referencing the surface.
  */
 
 /**
  * enum drm_vmw_surface_flags
  *
  * @drm_vmw_surface_flag_shareable:     Whether the surface is shareable
  * @drm_vmw_surface_flag_scanout:       Whether the surface is a scanout
  *                                      surface.
  * @drm_vmw_surface_flag_create_buffer: Create a backup buffer if none is
  *                                      given.
  */
 enum drm_vmw_surface_flags {
     drm_vmw_surface_flag_shareable = (1 << 0),
     drm_vmw_surface_flag_scanout = (1 << 1),
     drm_vmw_surface_flag_create_buffer = (1 << 2)
 };
 
 /**
  * struct drm_vmw_gb_surface_create_req
  *
  * @svga3d_flags:     SVGA3d surface flags for the device.
  * @format:           SVGA3d format.
  * @mip_level:        Number of mip levels for all faces.
  * @drm_surface_flags Flags as described above.
  * @multisample_count Future use. Set to 0.
  * @autogen_filter    Future use. Set to 0.
  * @buffer_handle     Buffer handle of backup buffer. SVGA3D_INVALID_ID
  *                    if none.
  * @base_size         Size of the base mip level for all faces.
  * @array_size        Must be zero for non-DX hardware, and if non-zero
  *                    svga3d_flags must have proper bind flags setup.
  *
  * Input argument to the  DRM_VMW_GB_SURFACE_CREATE Ioctl.
  * Part of output argument for the DRM_VMW_GB_SURFACE_REF Ioctl.
  */
 struct drm_vmw_gb_surface_create_req {
     __u32 svga3d_flags;
     __u32 format;
     __u32 mip_levels;
     enum drm_vmw_surface_flags drm_surface_flags;
     __u32 multisample_count;
     __u32 autogen_filter;
     __u32 buffer_handle;
     __u32 array_size;
     struct drm_vmw_size base_size;
 };
 
 /**
  * struct drm_vmw_gb_surface_create_rep
  *
  * @handle:            Surface handle.
  * @backup_size:       Size of backup buffers for this surface.
  * @buffer_handle:     Handle of backup buffer. SVGA3D_INVALID_ID if none.
  * @buffer_size:       Actual size of the buffer identified by
  *                     @buffer_handle
  * @buffer_map_handle: Offset into device address space for the buffer
  *                     identified by @buffer_handle.
  *
  * Part of output argument for the DRM_VMW_GB_SURFACE_REF ioctl.
  * Output argument for the DRM_VMW_GB_SURFACE_CREATE ioctl.
  */
 struct drm_vmw_gb_surface_create_rep {
     __u32 handle;
     __u32 backup_size;
     __u32 buffer_handle;
     __u32 buffer_size;
     __u64 buffer_map_handle;
 };
 
 /**
  * union drm_vmw_gb_surface_create_arg
  *
  * @req: Input argument as described above.
  * @rep: Output argument as described above.
  *
  * Argument to the DRM_VMW_GB_SURFACE_CREATE ioctl.
  */
 union drm_vmw_gb_surface_create_arg {
     struct drm_vmw_gb_surface_create_rep rep;
     struct drm_vmw_gb_surface_create_req req;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_GB_SURFACE_REF - Reference a host surface.
  *
  * Puts a reference on a host surface with a given handle, as previously
  * returned by the DRM_VMW_GB_SURFACE_CREATE ioctl.
  * A reference will make sure the surface isn't destroyed while we hold
  * it and will allow the calling client to use the surface handle in
  * the command stream.
  *
  * On successful return, the Ioctl returns the surface information given
  * to and returned from the DRM_VMW_GB_SURFACE_CREATE ioctl.
  */
 
 /**
  * struct drm_vmw_gb_surface_reference_arg
  *
  * @creq: The data used as input when the surface was created, as described
  *        above at "struct drm_vmw_gb_surface_create_req"
  * @crep: Additional data output when the surface was created, as described
  *        above at "struct drm_vmw_gb_surface_create_rep"
  *
  * Output Argument to the DRM_VMW_GB_SURFACE_REF ioctl.
  */
 struct drm_vmw_gb_surface_ref_rep {
     struct drm_vmw_gb_surface_create_req creq;
     struct drm_vmw_gb_surface_create_rep crep;
 };
 
 /**
  * union drm_vmw_gb_surface_reference_arg
  *
  * @req: Input data as described above at "struct drm_vmw_surface_arg"
  * @rep: Output data as described above at "struct drm_vmw_gb_surface_ref_rep"
  *
  * Argument to the DRM_VMW_GB_SURFACE_REF Ioctl.
  */
 union drm_vmw_gb_surface_reference_arg {
     struct drm_vmw_gb_surface_ref_rep rep;
     struct drm_vmw_surface_arg req;
 };
 
 
 /*************************************************************************/
 /**
  * DRM_VMW_SYNCCPU - Sync a DMA buffer / MOB for CPU access.
  *
  * Idles any previously submitted GPU operations on the buffer and
  * by default blocks command submissions that reference the buffer.
  * If the file descriptor used to grab a blocking CPU sync is closed, the
  * cpu sync is released.
  * The flags argument indicates how the grab / release operation should be
  * performed:
  */
 
 /**
  * enum drm_vmw_synccpu_flags - Synccpu flags:
  *
  * @drm_vmw_synccpu_read: Sync for read. If sync is done for read only, it's a
  * hint to the kernel to allow command submissions that references the buffer
  * for read-only.
  * @drm_vmw_synccpu_write: Sync for write. Block all command submissions
  * referencing this buffer.
  * @drm_vmw_synccpu_dontblock: Don't wait for GPU idle, but rather return
  * -EBUSY should the buffer be busy.
  * @drm_vmw_synccpu_allow_cs: Allow command submission that touches the buffer
  * while the buffer is synced for CPU. This is similar to the GEM bo idle
  * behavior.
  */
 enum drm_vmw_synccpu_flags {
     drm_vmw_synccpu_read = (1 << 0),
     drm_vmw_synccpu_write = (1 << 1),
     drm_vmw_synccpu_dontblock = (1 << 2),
     drm_vmw_synccpu_allow_cs = (1 << 3)
 };
 
 /**
  * enum drm_vmw_synccpu_op - Synccpu operations:
  *
  * @drm_vmw_synccpu_grab:    Grab the buffer for CPU operations
  * @drm_vmw_synccpu_release: Release a previous grab.
  */
 enum drm_vmw_synccpu_op {
     drm_vmw_synccpu_grab,
     drm_vmw_synccpu_release
 };
 
 /**
  * struct drm_vmw_synccpu_arg
  *
  * @op:              The synccpu operation as described above.
  * @handle:          Handle identifying the buffer object.
  * @flags:           Flags as described above.
  */
 struct drm_vmw_synccpu_arg {
     enum drm_vmw_synccpu_op op;
     enum drm_vmw_synccpu_flags flags;
     __u32 handle;
     __u32 pad64;
 };
 
 /*************************************************************************/
 /**
  * DRM_VMW_CREATE_EXTENDED_CONTEXT - Create a host context.
  *
  * Allocates a device unique context id, and queues a create context command
  * for the host. Does not wait for host completion.
  */
 enum drm_vmw_extended_context {
     drm_vmw_context_legacy,
     drm_vmw_context_dx
 };
 
 /**
  * union drm_vmw_extended_context_arg
  *
  * @req: Context type.
  * @rep: Context identifier.
  *
  * Argument to the DRM_VMW_CREATE_EXTENDED_CONTEXT Ioctl.
  */
 union drm_vmw_extended_context_arg {
     enum drm_vmw_extended_context req;
     struct drm_vmw_context_arg rep;
 };
 
 /*************************************************************************/
 /*
  * DRM_VMW_HANDLE_CLOSE - Close a user-space handle and release its
  * underlying resource.
  *
  * Note that this ioctl is overlaid on the DRM_VMW_UNREF_DMABUF Ioctl.
  * The ioctl arguments therefore need to be identical in layout.
  *
  */
 
 /**
  * struct drm_vmw_handle_close_arg
  *
  * @handle: Handle to close.
  *
  * Argument to the DRM_VMW_HANDLE_CLOSE Ioctl.
  */
 struct drm_vmw_handle_close_arg {
     __u32 handle;
     __u32 pad64;
 };
 
 
 #if defined(__cplusplus)
 }
 #endif
 
 #endif

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