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authorThomas Hellstrom <thellstrom@vmware.com>2011-10-10 12:23:26 +0200
committerDave Airlie <airlied@redhat.com>2011-10-10 15:46:55 +0100
commit57c5ee79acba9582762c09c269e0e2ae1adf1b31 (patch)
tree26b2148b81e7a7c1785d9d07d45c68bb1117bfb5 /include/drm
parent8bf445cee3127de3779a395d08d1ada2ad70161e (diff)
vmwgfx: Add fence events
Add a way to send DRM events down the gpu fifo by attaching them to fence objects. This may be useful for Xserver swapbuffer throttling and page-flip done notifications. Bump version to 2.2 to signal the availability of the FENCE_EVENT ioctl. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/vmwgfx_drm.h47
1 files changed, 45 insertions, 2 deletions
diff --git a/include/drm/vmwgfx_drm.h b/include/drm/vmwgfx_drm.h
index 5b5b0a891f36..cd7cd8162ed6 100644
--- a/include/drm/vmwgfx_drm.h
+++ b/include/drm/vmwgfx_drm.h
@@ -685,6 +685,51 @@ struct drm_vmw_fence_arg {
/*************************************************************************/
/**
+ * 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;
+ uint64_t user_data;
+ uint32_t tv_sec;
+ uint32_t 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 uint64_t 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 {
+ uint64_t fence_rep;
+ uint64_t user_data;
+ uint32_t handle;
+ uint32_t flags;
+};
+
+
+/*************************************************************************/
+/**
* DRM_VMW_PRESENT
*
* Executes an SVGA present on a given fb for a given surface. The surface
@@ -743,6 +788,4 @@ struct drm_vmw_present_readback_arg {
uint64_t clips_ptr;
uint64_t fence_rep;
};
-
-
#endif