Merge branch 'drm/next/du' of git://linuxtv.org/pinchartl/media into drm-next

The series interleaves DRM and V4L2 patches due to dependencies between the R-
Car DU and VSP drivers. Mauro has acked all the V4L2 patches to go through
your tree, and they don't conflict with anything queued for v4.13 in his tree.
If I need to send any conflicting patches through Mauro's tree for v4.13, I'll
make sure to base them on this branch.

* 'drm/next/du' of git://linuxtv.org/pinchartl/media:
  drm: rcar-du: Map memory through the VSP device
  v4l: vsp1: Add API to map and unmap DRM buffers through the VSP
  v4l: vsp1: Map the DL and video buffers through the proper bus master
  v4l: rcar-fcp: Add an API to retrieve the FCP device
  v4l: rcar-fcp: Don't get/put module reference
  drm: rcar-du: Register a completion callback with VSP1
  v4l: vsp1: Extend VSP1 module API to allow DRM callbacks
  v4l: vsp1: Postpone frame end handling in event of display list race
  drm: rcar-du: Arm the page flip event after queuing the page flip

drivers/gpu/drm/rcar-du/rcar_du_crtc.c

@@ -378,7 +378,7 @@ static void rcar_du_crtc_update_planes(struct rcar_du_crtc *rcrtc)
  * Page Flip
  */
 
-static void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc)
+void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc)
 {
 	struct drm_pending_vblank_event *event;
 	struct drm_device *dev = rcrtc->crtc.dev;
@@ -581,17 +581,6 @@ static void rcar_du_crtc_atomic_begin(struct drm_crtc *crtc,
 				      struct drm_crtc_state *old_crtc_state)
 {
 	struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
-	struct drm_device *dev = rcrtc->crtc.dev;
-	unsigned long flags;
-
-	if (crtc->state->event) {
-		WARN_ON(drm_crtc_vblank_get(crtc) != 0);
-
-		spin_lock_irqsave(&dev->event_lock, flags);
-		rcrtc->event = crtc->state->event;
-		crtc->state->event = NULL;
-		spin_unlock_irqrestore(&dev->event_lock, flags);
-	}
 
 	if (rcar_du_has(rcrtc->group->dev, RCAR_DU_FEATURE_VSP1_SOURCE))
 		rcar_du_vsp_atomic_begin(rcrtc);
@@ -601,9 +590,20 @@ static void rcar_du_crtc_atomic_flush(struct drm_crtc *crtc,
 				      struct drm_crtc_state *old_crtc_state)
 {
 	struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
+	struct drm_device *dev = rcrtc->crtc.dev;
+	unsigned long flags;
 
 	rcar_du_crtc_update_planes(rcrtc);
 
+	if (crtc->state->event) {
+		WARN_ON(drm_crtc_vblank_get(crtc) != 0);
+
+		spin_lock_irqsave(&dev->event_lock, flags);
+		rcrtc->event = crtc->state->event;
+		crtc->state->event = NULL;
+		spin_unlock_irqrestore(&dev->event_lock, flags);
+	}
+
 	if (rcar_du_has(rcrtc->group->dev, RCAR_DU_FEATURE_VSP1_SOURCE))
 		rcar_du_vsp_atomic_flush(rcrtc);
 }
@@ -650,6 +650,7 @@ static const struct drm_crtc_funcs crtc_funcs = {
 static irqreturn_t rcar_du_crtc_irq(int irq, void *arg)
 {
 	struct rcar_du_crtc *rcrtc = arg;
+	struct rcar_du_device *rcdu = rcrtc->group->dev;
 	irqreturn_t ret = IRQ_NONE;
 	u32 status;
 
@@ -658,7 +659,10 @@ static irqreturn_t rcar_du_crtc_irq(int irq, void *arg)
 
 	if (status & DSSR_FRM) {
 		drm_crtc_handle_vblank(&rcrtc->crtc);
-		rcar_du_crtc_finish_page_flip(rcrtc);
+
+		if (rcdu->info->gen < 3)
+			rcar_du_crtc_finish_page_flip(rcrtc);
+
 		ret = IRQ_HANDLED;
 	}
 

drivers/gpu/drm/rcar-du/rcar_du_crtc.h

@@ -73,5 +73,6 @@ void rcar_du_crtc_resume(struct rcar_du_crtc *rcrtc);
 
 void rcar_du_crtc_route_output(struct drm_crtc *crtc,
 			       enum rcar_du_output output);
+void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc);
 
 #endif /* __RCAR_DU_CRTC_H__ */

drivers/gpu/drm/rcar-du/rcar_du_vsp.c

@@ -19,7 +19,9 @@
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_plane_helper.h>
 
+#include <linux/dma-mapping.h>
 #include <linux/of_platform.h>
+#include <linux/scatterlist.h>
 #include <linux/videodev2.h>
 
 #include <media/vsp1.h>
@@ -28,6 +30,13 @@
 #include "rcar_du_kms.h"
 #include "rcar_du_vsp.h"
 
+static void rcar_du_vsp_complete(void *private)
+{
+	struct rcar_du_crtc *crtc = private;
+
+	rcar_du_crtc_finish_page_flip(crtc);
+}
+
 void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
 {
 	const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode;
@@ -35,6 +44,8 @@ void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
 	struct vsp1_du_lif_config cfg = {
 		.width = mode->hdisplay,
 		.height = mode->vdisplay,
+		.callback = rcar_du_vsp_complete,
+		.callback_data = crtc,
 	};
 	struct rcar_du_plane_state state = {
 		.state = {
@@ -170,12 +181,9 @@ static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
 	cfg.dst.width = state->state.crtc_w;
 	cfg.dst.height = state->state.crtc_h;
 
-	for (i = 0; i < state->format->planes; ++i) {
-		struct drm_gem_cma_object *gem;
-
-		gem = drm_fb_cma_get_gem_obj(fb, i);
-		cfg.mem[i] = gem->paddr + fb->offsets[i];
-	}
+	for (i = 0; i < state->format->planes; ++i)
+		cfg.mem[i] = sg_dma_address(state->sg_tables[i].sgl)
+			   + fb->offsets[i];
 
 	for (i = 0; i < ARRAY_SIZE(formats_kms); ++i) {
 		if (formats_kms[i] == state->format->fourcc) {
@@ -187,6 +195,67 @@ static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
 	vsp1_du_atomic_update(plane->vsp->vsp, plane->index, &cfg);
 }
 
+static int rcar_du_vsp_plane_prepare_fb(struct drm_plane *plane,
+					struct drm_plane_state *state)
+{
+	struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
+	struct rcar_du_vsp *vsp = to_rcar_vsp_plane(plane)->vsp;
+	struct rcar_du_device *rcdu = vsp->dev;
+	unsigned int i;
+	int ret;
+
+	if (!state->fb)
+		return 0;
+
+	for (i = 0; i < rstate->format->planes; ++i) {
+		struct drm_gem_cma_object *gem =
+			drm_fb_cma_get_gem_obj(state->fb, i);
+		struct sg_table *sgt = &rstate->sg_tables[i];
+
+		ret = dma_get_sgtable(rcdu->dev, sgt, gem->vaddr, gem->paddr,
+				      gem->base.size);
+		if (ret)
+			goto fail;
+
+		ret = vsp1_du_map_sg(vsp->vsp, sgt);
+		if (!ret) {
+			sg_free_table(sgt);
+			ret = -ENOMEM;
+			goto fail;
+		}
+	}
+
+	return 0;
+
+fail:
+	while (i--) {
+		struct sg_table *sgt = &rstate->sg_tables[i];
+
+		vsp1_du_unmap_sg(vsp->vsp, sgt);
+		sg_free_table(sgt);
+	}
+
+	return ret;
+}
+
+static void rcar_du_vsp_plane_cleanup_fb(struct drm_plane *plane,
+					 struct drm_plane_state *state)
+{
+	struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
+	struct rcar_du_vsp *vsp = to_rcar_vsp_plane(plane)->vsp;
+	unsigned int i;
+
+	if (!state->fb)
+		return;
+
+	for (i = 0; i < rstate->format->planes; ++i) {
+		struct sg_table *sgt = &rstate->sg_tables[i];
+
+		vsp1_du_unmap_sg(vsp->vsp, sgt);
+		sg_free_table(sgt);
+	}
+}
+
 static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
 					  struct drm_plane_state *state)
 {
@@ -227,6 +296,8 @@ static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
 }
 
 static const struct drm_plane_helper_funcs rcar_du_vsp_plane_helper_funcs = {
+	.prepare_fb = rcar_du_vsp_plane_prepare_fb,
+	.cleanup_fb = rcar_du_vsp_plane_cleanup_fb,
 	.atomic_check = rcar_du_vsp_plane_atomic_check,
 	.atomic_update = rcar_du_vsp_plane_atomic_update,
 };

drivers/gpu/drm/rcar-du/rcar_du_vsp.h

@@ -43,6 +43,7 @@ static inline struct rcar_du_vsp_plane *to_rcar_vsp_plane(struct drm_plane *p)
  * struct rcar_du_vsp_plane_state - Driver-specific plane state
  * @state: base DRM plane state
  * @format: information about the pixel format used by the plane
+ * @sg_tables: scatter-gather tables for the frame buffer memory
  * @alpha: value of the plane alpha property
  * @zpos: value of the plane zpos property
  */
@@ -50,6 +51,7 @@ struct rcar_du_vsp_plane_state {
 	struct drm_plane_state state;
 
 	const struct rcar_du_format_info *format;
+	struct sg_table sg_tables[3];
 
 	unsigned int alpha;
 	unsigned int zpos;

drivers/media/platform/rcar-fcp.c

@@ -53,14 +53,7 @@ struct rcar_fcp_device *rcar_fcp_get(const struct device_node *np)
 		if (fcp->dev->of_node != np)
 			continue;
 
-		/*
-		 * Make sure the module won't be unloaded behind our back. This
-		 * is a poor man's safety net, the module should really not be
-		 * unloaded while FCP users can be active.
-		 */
-		if (!try_module_get(fcp->dev->driver->owner))
-			fcp = NULL;
-
+		get_device(fcp->dev);
 		goto done;
 	}
 
@@ -81,10 +74,16 @@ EXPORT_SYMBOL_GPL(rcar_fcp_get);
 void rcar_fcp_put(struct rcar_fcp_device *fcp)
 {
 	if (fcp)
-		module_put(fcp->dev->driver->owner);
+		put_device(fcp->dev);
 }
 EXPORT_SYMBOL_GPL(rcar_fcp_put);
 
+struct device *rcar_fcp_get_device(struct rcar_fcp_device *fcp)
+{
+	return fcp->dev;
+}
+EXPORT_SYMBOL_GPL(rcar_fcp_get_device);
+
 /**
  * rcar_fcp_enable - Enable an FCP
  * @fcp: The FCP instance

drivers/media/platform/vsp1/vsp1.h

@@ -74,6 +74,7 @@ struct vsp1_device {
 
 	void __iomem *mmio;
 	struct rcar_fcp_device *fcp;
+	struct device *bus_master;
 
 	struct vsp1_bru *bru;
 	struct vsp1_clu *clu;

drivers/media/platform/vsp1/vsp1_dl.c

@@ -137,7 +137,7 @@ static int vsp1_dl_body_init(struct vsp1_device *vsp1,
 	dlb->vsp1 = vsp1;
 	dlb->size = size;
 
-	dlb->entries = dma_alloc_wc(vsp1->dev, dlb->size, &dlb->dma,
+	dlb->entries = dma_alloc_wc(vsp1->bus_master, dlb->size, &dlb->dma,
 				    GFP_KERNEL);
 	if (!dlb->entries)
 		return -ENOMEM;
@@ -150,7 +150,7 @@ static int vsp1_dl_body_init(struct vsp1_device *vsp1,
  */
 static void vsp1_dl_body_cleanup(struct vsp1_dl_body *dlb)
 {
-	dma_free_wc(dlb->vsp1->dev, dlb->size, dlb->entries, dlb->dma);
+	dma_free_wc(dlb->vsp1->bus_master, dlb->size, dlb->entries, dlb->dma);
 }
 
 /**
@@ -561,9 +561,19 @@ void vsp1_dlm_irq_display_start(struct vsp1_dl_manager *dlm)
 	spin_unlock(&dlm->lock);
 }
 
-void vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm)
+/**
+ * vsp1_dlm_irq_frame_end - Display list handler for the frame end interrupt
+ * @dlm: the display list manager
+ *
+ * Return true if the previous display list has completed at frame end, or false
+ * if it has been delayed by one frame because the display list commit raced
+ * with the frame end interrupt. The function always returns true in header mode
+ * as display list processing is then not continuous and races never occur.
+ */
+bool vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm)
 {
 	struct vsp1_device *vsp1 = dlm->vsp1;
+	bool completed = false;
 
 	spin_lock(&dlm->lock);
 
@@ -575,8 +585,10 @@ void vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm)
 	 * perform any operation as there can't be any new display list queued
 	 * in that case.
 	 */
-	if (dlm->mode == VSP1_DL_MODE_HEADER)
+	if (dlm->mode == VSP1_DL_MODE_HEADER) {
+		completed = true;
 		goto done;
+	}
 
 	/*
 	 * The UPD bit set indicates that the commit operation raced with the
@@ -594,6 +606,7 @@ void vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm)
 	if (dlm->queued) {
 		dlm->active = dlm->queued;
 		dlm->queued = NULL;
+		completed = true;
 	}
 
 	/*
@@ -614,6 +627,8 @@ void vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm)
 
 done:
 	spin_unlock(&dlm->lock);
+
+	return completed;
 }
 
 /* Hardware Setup */

drivers/media/platform/vsp1/vsp1_dl.h

@@ -28,7 +28,7 @@ struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
 void vsp1_dlm_destroy(struct vsp1_dl_manager *dlm);
 void vsp1_dlm_reset(struct vsp1_dl_manager *dlm);
 void vsp1_dlm_irq_display_start(struct vsp1_dl_manager *dlm);
-void vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm);
+bool vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm);
 
 struct vsp1_dl_list *vsp1_dl_list_get(struct vsp1_dl_manager *dlm);
 void vsp1_dl_list_put(struct vsp1_dl_list *dl);

drivers/media/platform/vsp1/vsp1_drm.c

@@ -12,6 +12,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/dma-mapping.h>
 #include <linux/slab.h>
 
 #include <media/media-entity.h>
@@ -36,6 +37,14 @@ void vsp1_drm_display_start(struct vsp1_device *vsp1)
 	vsp1_dlm_irq_display_start(vsp1->drm->pipe.output->dlm);
 }
 
+static void vsp1_du_pipeline_frame_end(struct vsp1_pipeline *pipe)
+{
+	struct vsp1_drm *drm = to_vsp1_drm(pipe);
+
+	if (drm->du_complete)
+		drm->du_complete(drm->du_private);
+}
+
 /* -----------------------------------------------------------------------------
  * DU Driver API
  */
@@ -95,6 +104,7 @@ int vsp1_du_setup_lif(struct device *dev, const struct vsp1_du_lif_config *cfg)
 		}
 
 		pipe->num_inputs = 0;
+		vsp1->drm->du_complete = NULL;
 
 		vsp1_dlm_reset(pipe->output->dlm);
 		vsp1_device_put(vsp1);
@@ -199,6 +209,13 @@ int vsp1_du_setup_lif(struct device *dev, const struct vsp1_du_lif_config *cfg)
 	if (ret < 0)
 		return ret;
 
+	/*
+	 * Register a callback to allow us to notify the DRM driver of frame
+	 * completion events.
+	 */
+	vsp1->drm->du_complete = cfg->callback;
+	vsp1->drm->du_private = cfg->callback_data;
+
 	ret = media_pipeline_start(&pipe->output->entity.subdev.entity,
 					  &pipe->pipe);
 	if (ret < 0) {
@@ -524,6 +541,29 @@ void vsp1_du_atomic_flush(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(vsp1_du_atomic_flush);
 
+int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt)
+{
+	struct vsp1_device *vsp1 = dev_get_drvdata(dev);
+
+	/*
+	 * As all the buffers allocated by the DU driver are coherent, we can
+	 * skip cache sync. This will need to be revisited when support for
+	 * non-coherent buffers will be added to the DU driver.
+	 */
+	return dma_map_sg_attrs(vsp1->bus_master, sgt->sgl, sgt->nents,
+				DMA_TO_DEVICE, DMA_ATTR_SKIP_CPU_SYNC);
+}
+EXPORT_SYMBOL_GPL(vsp1_du_map_sg);
+
+void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt)
+{
+	struct vsp1_device *vsp1 = dev_get_drvdata(dev);
+
+	dma_unmap_sg_attrs(vsp1->bus_master, sgt->sgl, sgt->nents,
+			   DMA_TO_DEVICE, DMA_ATTR_SKIP_CPU_SYNC);
+}
+EXPORT_SYMBOL_GPL(vsp1_du_unmap_sg);
+
 /* -----------------------------------------------------------------------------
  * Initialization
  */
@@ -603,6 +643,7 @@ int vsp1_drm_init(struct vsp1_device *vsp1)
 	pipe->lif = &vsp1->lif->entity;
 	pipe->output = vsp1->wpf[0];
 	pipe->output->pipe = pipe;
+	pipe->frame_end = vsp1_du_pipeline_frame_end;
 
 	return 0;
 }

drivers/media/platform/vsp1/vsp1_drm.h

@@ -23,6 +23,8 @@
  * @num_inputs: number of active pipeline inputs at the beginning of an update
  * @inputs: source crop rectangle, destination compose rectangle and z-order
  *	position for every input
+ * @du_complete: frame completion callback for the DU driver (optional)
+ * @du_private: data to be passed to the du_complete callback
  */
 struct vsp1_drm {
 	struct vsp1_pipeline pipe;
@@ -33,8 +35,17 @@ struct vsp1_drm {
 		struct v4l2_rect compose;
 		unsigned int zpos;
 	} inputs[VSP1_MAX_RPF];
+
+	/* Frame synchronisation */
+	void (*du_complete)(void *);
+	void *du_private;
 };
 
+static inline struct vsp1_drm *to_vsp1_drm(struct vsp1_pipeline *pipe)
+{
+	return container_of(pipe, struct vsp1_drm, pipe);
+}
+
 int vsp1_drm_init(struct vsp1_device *vsp1);
 void vsp1_drm_cleanup(struct vsp1_device *vsp1);
 int vsp1_drm_create_links(struct vsp1_device *vsp1);

drivers/media/platform/vsp1/vsp1_drv.c

@@ -764,6 +764,15 @@ static int vsp1_probe(struct platform_device *pdev)
 				PTR_ERR(vsp1->fcp));
 			return PTR_ERR(vsp1->fcp);
 		}
+
+		/*
+		 * When the FCP is present, it handles all bus master accesses
+		 * for the VSP and must thus be used in place of the VSP device
+		 * to map DMA buffers.
+		 */
+		vsp1->bus_master = rcar_fcp_get_device(vsp1->fcp);
+	} else {
+		vsp1->bus_master = vsp1->dev;
 	}
 
 	/* Configure device parameters based on the version register. */

drivers/media/platform/vsp1/vsp1_pipe.c

@@ -330,10 +330,21 @@ bool vsp1_pipeline_ready(struct vsp1_pipeline *pipe)
 
 void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe)
 {
+	bool completed;
+
 	if (pipe == NULL)
 		return;
 
-	vsp1_dlm_irq_frame_end(pipe->output->dlm);
+	completed = vsp1_dlm_irq_frame_end(pipe->output->dlm);
+	if (!completed) {
+		/*
+		 * If the DL commit raced with the frame end interrupt, the
+		 * commit ends up being postponed by one frame. Return
+		 * immediately without calling the pipeline's frame end handler
+		 * or incrementing the sequence number.
+		 */
+		return;
+	}
 
 	if (pipe->hgo)
 		vsp1_hgo_frame_end(pipe->hgo);

drivers/media/platform/vsp1/vsp1_video.c

@@ -1197,7 +1197,7 @@ struct vsp1_video *vsp1_video_create(struct vsp1_device *vsp1,
 	video->queue.ops = &vsp1_video_queue_qops;
 	video->queue.mem_ops = &vb2_dma_contig_memops;
 	video->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
-	video->queue.dev = video->vsp1->dev;
+	video->queue.dev = video->vsp1->bus_master;
 	ret = vb2_queue_init(&video->queue);
 	if (ret < 0) {
 		dev_err(video->vsp1->dev, "failed to initialize vb2 queue\n");

include/media/rcar-fcp.h

@@ -19,6 +19,7 @@ struct rcar_fcp_device;
 #if IS_ENABLED(CONFIG_VIDEO_RENESAS_FCP)
 struct rcar_fcp_device *rcar_fcp_get(const struct device_node *np);
 void rcar_fcp_put(struct rcar_fcp_device *fcp);
+struct device *rcar_fcp_get_device(struct rcar_fcp_device *fcp);
 int rcar_fcp_enable(struct rcar_fcp_device *fcp);
 void rcar_fcp_disable(struct rcar_fcp_device *fcp);
 #else
@@ -27,6 +28,10 @@ static inline struct rcar_fcp_device *rcar_fcp_get(const struct device_node *np)
 	return ERR_PTR(-ENOENT);
 }
 static inline void rcar_fcp_put(struct rcar_fcp_device *fcp) { }
+static inline struct device *rcar_fcp_get_device(struct rcar_fcp_device *fcp)
+{
+	return NULL;
+}
 static inline int rcar_fcp_enable(struct rcar_fcp_device *fcp)
 {
 	return 0;

include/media/vsp1.h

@@ -13,6 +13,7 @@
 #ifndef __MEDIA_VSP1_H__
 #define __MEDIA_VSP1_H__
 
+#include <linux/scatterlist.h>
 #include <linux/types.h>
 #include <linux/videodev2.h>
 
@@ -24,10 +25,17 @@ int vsp1_du_init(struct device *dev);
  * struct vsp1_du_lif_config - VSP LIF configuration
  * @width: output frame width
  * @height: output frame height
+ * @callback: frame completion callback function (optional). When a callback
+ *	      is provided, the VSP driver guarantees that it will be called once
+ *	      and only once for each vsp1_du_atomic_flush() call.
+ * @callback_data: data to be passed to the frame completion callback
  */
 struct vsp1_du_lif_config {
 	unsigned int width;
 	unsigned int height;
+
+	void (*callback)(void *);
+	void *callback_data;
 };
 
 int vsp1_du_setup_lif(struct device *dev, const struct vsp1_du_lif_config *cfg);
@@ -46,5 +54,7 @@ void vsp1_du_atomic_begin(struct device *dev);
 int vsp1_du_atomic_update(struct device *dev, unsigned int rpf,
 			  const struct vsp1_du_atomic_config *cfg);
 void vsp1_du_atomic_flush(struct device *dev);
+int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt);
+void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt);
 
 #endif /* __MEDIA_VSP1_H__ */