v3d: Add the V3D TFU submit interface to the simulator.

The TFU lets us format raster and SAND images into formats that can be
read by the texture engine, and do mipmap generation.

The UAPI comes from drm-next e69aa5f9b97f ("Merge tag
'drm-misc-next-2018-12-06' of git://anongit.freedesktop.org/drm/drm-misc
into drm-next")

1 files changed, 37 insertions, 2 deletions

diff --git a/include/drm-uapi/v3d_drm.h b/include/drm-uapi/v3d_drm.h
index 7b662778360..35c7d813c66 100644
--- a/include/drm-uapi/v3d_drm.h
+++ b/include/drm-uapi/v3d_drm.h
@@ -36,6 +36,7 @@ extern "C" {
 #define DRM_V3D_MMAP_BO                           0x03
 #define DRM_V3D_GET_PARAM                         0x04
 #define DRM_V3D_GET_BO_OFFSET                     0x05
+#define DRM_V3D_SUBMIT_TFU                        0x06
 
 #define DRM_IOCTL_V3D_SUBMIT_CL           DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CL, struct drm_v3d_submit_cl)
 #define DRM_IOCTL_V3D_WAIT_BO             DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_WAIT_BO, struct drm_v3d_wait_bo)
@@ -43,6 +44,7 @@ extern "C" {
 #define DRM_IOCTL_V3D_MMAP_BO             DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_MMAP_BO, struct drm_v3d_mmap_bo)
 #define DRM_IOCTL_V3D_GET_PARAM           DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_GET_PARAM, struct drm_v3d_get_param)
 #define DRM_IOCTL_V3D_GET_BO_OFFSET       DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_GET_BO_OFFSET, struct drm_v3d_get_bo_offset)
+#define DRM_IOCTL_V3D_SUBMIT_TFU          DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_TFU, struct drm_v3d_submit_tfu)
 
 /**
  * struct drm_v3d_submit_cl - ioctl argument for submitting commands to the 3D
@@ -58,10 +60,15 @@ struct drm_v3d_submit_cl {
 	 * coordinate shader to determine where primitives land on the screen,
 	 * then writes out the state updates and draw calls necessary per tile
 	 * to the tile allocation BO.
+	 *
+	 * This BCL will block on any previous BCL submitted on the
+	 * same FD, but not on any RCL or BCLs submitted by other
+	 * clients -- that is left up to the submitter to control
+	 * using in_sync_bcl if necessary.
 	 */
 	__u32 bcl_start;
 
-	 /** End address of the BCL (first byte after the BCL) */
+	/** End address of the BCL (first byte after the BCL) */
 	__u32 bcl_end;
 
 	/* Offset of the render command list.
@@ -69,10 +76,15 @@ struct drm_v3d_submit_cl {
 	 * This is the second set of commands executed, which will either
 	 * execute the tiles that have been set up by the BCL, or a fixed set
 	 * of tiles (in the case of RCL-only blits).
+	 *
+	 * This RCL will block on this submit's BCL, and any previous
+	 * RCL submitted on the same FD, but not on any RCL or BCLs
+	 * submitted by other clients -- that is left up to the
+	 * submitter to control using in_sync_rcl if necessary.
 	 */
 	__u32 rcl_start;
 
-	 /** End address of the RCL (first byte after the RCL) */
+	/** End address of the RCL (first byte after the RCL) */
 	__u32 rcl_end;
 
 	/** An optional sync object to wait on before starting the BCL. */
@@ -169,6 +181,7 @@ enum drm_v3d_param {
 	DRM_V3D_PARAM_V3D_CORE0_IDENT0,
 	DRM_V3D_PARAM_V3D_CORE0_IDENT1,
 	DRM_V3D_PARAM_V3D_CORE0_IDENT2,
+	DRM_V3D_PARAM_SUPPORTS_TFU,
 };
 
 struct drm_v3d_get_param {
@@ -187,6 +200,28 @@ struct drm_v3d_get_bo_offset {
 	__u32 offset;
 };
 
+struct drm_v3d_submit_tfu {
+	__u32 icfg;
+	__u32 iia;
+	__u32 iis;
+	__u32 ica;
+	__u32 iua;
+	__u32 ioa;
+	__u32 ios;
+	__u32 coef[4];
+	/* First handle is the output BO, following are other inputs.
+	 * 0 for unused.
+	 */
+	__u32 bo_handles[4];
+	/* sync object to block on before running the TFU job.  Each TFU
+	 * job will execute in the order submitted to its FD.  Synchronization
+	 * against rendering jobs requires using sync objects.
+	 */
+	__u32 in_sync;
+	/* Sync object to signal when the TFU job is done. */
+	__u32 out_sync;
+};
+
 #if defined(__cplusplus)
 }
 #endif