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drm/vmwgfx: Prepare to support fence fd 

Make the fields and flags available.

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Deepak Singh Rawat <drawat@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
This commit is contained in:
Sinclair Yeh 2017-07-05 01:37:55 -07:00
parent 1f1a36cc4d
commit 2cfa0bb25d
2 changed files with 8 additions and 8 deletions
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5
drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
View File

@ -4449,11 +4449,6 @@ int vmw_execbuf_ioctl(struct drm_device *dev, unsigned long data,
arg.context_handle = (uint32_t) -1;
break;
case 2:
if (arg.pad64 != 0) {
DRM_ERROR("Unused IOCTL data not set to zero.\n");
return -EINVAL;
}
break;
default:
break;
}

11
include/uapi/drm/vmwgfx_drm.h
View File

@ -297,13 +297,17 @@ union drm_vmw_surface_reference_arg {
* @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. None currently.
* @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;
@ -312,7 +316,7 @@ struct drm_vmw_execbuf_arg {
__u32 version;
__u32 flags;
__u32 context_handle;
__u32 pad64;
__s32 imported_fence_fd;
};
/**
@ -328,6 +332,7 @@ struct drm_vmw_execbuf_arg {
* @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.
@ -345,7 +350,7 @@ struct drm_vmw_fence_rep {
__u32 mask;
__u32 seqno;
__u32 passed_seqno;
__u32 pad64;
__s32 fd;
__s32 error;
};