[igt-dev] [PATCH i-g-t 1/4] lib/intel_batchbuffer: Extend intel_bb

["Zbigniew Kempczyński" <zbigniew.kempczynski@intel.com>]

As we're going toward removing libdrm from rendercopy tests some
additional code in intel_bb is required. So add new functions
and fix memory issues in the reset path.

Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
---
 lib/intel_batchbuffer.c | 387 +++++++++++++++++++++++++++++++++++++---
 lib/intel_batchbuffer.h |  52 +++++-
 2 files changed, 410 insertions(+), 29 deletions(-)

diff --git a/lib/intel_batchbuffer.c b/lib/intel_batchbuffer.c
index 2a882627..1878336f 100644
--- a/lib/intel_batchbuffer.c
+++ b/lib/intel_batchbuffer.c
@@ -1045,8 +1045,6 @@ void igt_blitter_fast_copy(struct intel_batchbuffer *batch,
 	intel_batchbuffer_flush(batch);
 }
 
-#undef CHECK_RANGE
-
 /**
  * igt_get_render_copyfunc:
  * @devid: pci device id
@@ -1211,7 +1209,8 @@ static void __reallocate_objects(struct intel_bb *ibb)
  *
  * Pointer the intel_bb, asserts on failure.
  */
-struct intel_bb *intel_bb_create(int i915, uint32_t size)
+static struct intel_bb *
+__intel_bb_create(int i915, uint32_t size, bool do_relocs)
 {
 	struct intel_bb *ibb = calloc(1, sizeof(*ibb));
 	uint64_t gtt_size;
@@ -1221,6 +1220,7 @@ struct intel_bb *intel_bb_create(int i915, uint32_t size)
 	ibb->i915 = i915;
 	ibb->devid = intel_get_drm_devid(i915);
 	ibb->gen = intel_gen(ibb->devid);
+	ibb->enforce_relocs = do_relocs;
 	ibb->handle = gem_create(i915, size);
 	ibb->size = size;
 	ibb->batch = calloc(1, size);
@@ -1241,6 +1241,37 @@ struct intel_bb *intel_bb_create(int i915, uint32_t size)
 	return ibb;
 }
 
+/**
+ * intel_bb_create:
+ * @i915: drm fd
+ * @size: size of the batchbuffer
+ *
+ * Returns:
+ *
+ * Pointer the intel_bb, asserts on failure.
+ */
+struct intel_bb *intel_bb_create(int i915, uint32_t size)
+{
+	return __intel_bb_create(i915, size, false);
+}
+
+/**
+ * intel_bb_create_with_relocs:
+ * @i915: drm fd
+ * @size: size of the batchbuffer
+ *
+ * Disable passing or randomizing addresses. This will lead to relocations
+ * when objects are not previously pinned.
+ *
+ * Returns:
+ *
+ * Pointer the intel_bb, asserts on failure.
+ */
+struct intel_bb *intel_bb_create_with_relocs(int i915, uint32_t size)
+{
+	return __intel_bb_create(i915, size, true);
+}
+
 /*
  * tdestroy() calls free function for each node, but we spread tree
  * on objects array, so do nothing.
@@ -1250,23 +1281,34 @@ static void __do_nothing(void *node)
 	(void) node;
 }
 
-static void __intel_bb_destroy_objects(struct intel_bb *ibb)
+static void __intel_bb_destroy_relocations(struct intel_bb *ibb)
 {
 	uint32_t i;
 
 	/* Free relocations */
-	for (i = 0; i < ibb->num_objects; i++)
+	for (i = 0; i < ibb->num_objects; i++) {
 		free(from_user_pointer(ibb->objects[i].relocs_ptr));
+		ibb->objects[i].relocs_ptr = to_user_pointer(NULL);
+	}
 
-	free(ibb->objects);
-	tdestroy(ibb->root, __do_nothing);
+	ibb->relocs = NULL;
+	ibb->num_relocs = 0;
+	ibb->allocated_relocs = 0;
+}
 
+static void __intel_bb_destroy_objects(struct intel_bb *ibb)
+{
+	free(ibb->objects);
 	ibb->objects = NULL;
+
+	tdestroy(ibb->root, __do_nothing);
 	ibb->root = NULL;
+
+	memset(ibb->batch, 0, ibb->size);
+
 	ibb->num_objects = 0;
-	ibb->num_relocs = 0;
 	ibb->allocated_objects = 0;
-	ibb->allocated_relocs = 0;
+
 	ibb->ptr = ibb->batch;
 }
 
@@ -1280,6 +1322,7 @@ void intel_bb_destroy(struct intel_bb *ibb)
 {
 	igt_assert(ibb);
 
+	__intel_bb_destroy_relocations(ibb);
 	__intel_bb_destroy_objects(ibb);
 	gem_close(ibb->i915, ibb->handle);
 
@@ -1295,6 +1338,8 @@ void intel_bb_destroy(struct intel_bb *ibb)
 */
 void intel_bb_reset(struct intel_bb *ibb, bool purge_objects_cache)
 {
+	__intel_bb_destroy_relocations(ibb);
+
 	if (purge_objects_cache) {
 		__intel_bb_destroy_objects(ibb);
 		__reallocate_objects(ibb);
@@ -1307,6 +1352,60 @@ void intel_bb_reset(struct intel_bb *ibb, bool purge_objects_cache)
 	ibb->ptr = ibb->batch;
 }
 
+/*
+ * intel_bb_sync:
+ * @ibb: pointer to intel_bb
+ *
+ * Waits for bb completion.
+*/
+void intel_bb_sync(struct intel_bb *ibb)
+{
+	gem_sync(ibb->i915, ibb->handle);
+}
+
+/*
+ * intel_bb_print:
+ * @ibb: pointer to intel_bb
+ *
+ * Prints batch to stdout.
+*/
+void intel_bb_print(struct intel_bb *ibb)
+{
+	igt_info("drm fd: %d, gen: %d, devid: %u, debug: %d\n",
+		 ibb->i915, ibb->gen, ibb->devid, ibb->debug);
+	igt_info("handle: %u, size: %u, batch: %p, ptr: %p\n",
+		 ibb->handle, ibb->size, ibb->batch, ibb->ptr);
+	igt_info("prng: %u, gtt_size: %" PRIu64 ", supports 48bit: %d\n",
+		 ibb->prng, ibb->gtt_size, ibb->supports_48b_address);
+	igt_info("ctx: %u\n", ibb->ctx);
+	igt_info("root: %p\n", ibb->root);
+	igt_info("objects: %p, num_objects: %u, allocated obj: %u\n",
+		 ibb->objects, ibb->num_objects, ibb->allocated_objects);
+	igt_info("relocs: %p, num_relocs: %u, allocated_relocs: %u\n----\n",
+		 ibb->relocs, ibb->num_relocs, ibb->allocated_relocs);
+}
+
+/*
+ * intel_bb_dump:
+ * @ibb: pointer to intel_bb
+ * @filename: name to which write bb
+ *
+ * Dump batch bo to file.
+*/
+void intel_bb_dump(struct intel_bb *ibb, const char *filename)
+{
+	FILE *out;
+	void *ptr;
+
+	ptr = gem_mmap__device_coherent(ibb->i915, ibb->handle, 0, ibb->size,
+					PROT_READ);
+	out = fopen(filename, "wb");
+	igt_assert(out);
+	fwrite(ptr, ibb->size, 1, out);
+	fclose(out);
+	munmap(ptr, ibb->size);
+}
+
 /**
  * intel_bb_set_debug:
  * @ibb: pointer to intel_bb
@@ -1361,7 +1460,7 @@ intel_bb_add_object(struct intel_bb *ibb, uint32_t handle,
 		object = *found;
 
 	/* Assign address once */
-	if (object->offset == 0) {
+	if (!ibb->enforce_relocs && object->offset == 0) {
 		if (offset) {
 			object->offset = offset;
 		} else {
@@ -1382,6 +1481,23 @@ intel_bb_add_object(struct intel_bb *ibb, uint32_t handle,
 	return object;
 }
 
+static bool intel_bb_object_set_fence(struct intel_bb *ibb, uint32_t handle)
+{
+	struct drm_i915_gem_exec_object2 object = { .handle = handle };
+	struct drm_i915_gem_exec_object2 **found;
+
+	found = tfind((void *) &object, &ibb->root, __compare_objects);
+	if (!found) {
+		igt_warn("Trying to set fence on not found handle: %u\n",
+			 handle);
+		return false;
+	}
+
+	(*found)->flags |= EXEC_OBJECT_NEEDS_FENCE;
+
+	return true;
+}
+
 /*
  * intel_bb_add_reloc:
  * @ibb: pointer to intel_bb
@@ -1479,6 +1595,23 @@ uint64_t intel_bb_emit_reloc(struct intel_bb *ibb,
 	return address;
 }
 
+uint64_t intel_bb_emit_reloc_fenced(struct intel_bb *ibb,
+				    uint32_t handle,
+				    uint32_t read_domains,
+				    uint32_t write_domain,
+				    uint64_t delta,
+				    uint64_t presumed_offset)
+{
+	uint64_t address;
+
+	address = intel_bb_emit_reloc(ibb, handle, read_domains, write_domain,
+				      delta, presumed_offset);
+
+	intel_bb_object_set_fence(ibb, handle);
+
+	return address;
+}
+
 /**
  * intel_bb_offset_reloc:
  * @ibb: pointer to intel_bb
@@ -1509,7 +1642,23 @@ uint64_t intel_bb_offset_reloc(struct intel_bb *ibb,
 				  0, offset, presumed_offset);
 }
 
-static void intel_bb_dump_execbuf(struct drm_i915_gem_execbuffer2 *execbuf)
+uint64_t intel_bb_offset_reloc_with_delta(struct intel_bb *ibb,
+					  uint32_t handle,
+					  uint32_t read_domains,
+					  uint32_t write_domain,
+					  uint32_t delta,
+					  uint32_t offset,
+					  uint64_t presumed_offset)
+{
+	igt_assert(ibb);
+
+	return intel_bb_add_reloc(ibb, handle, read_domains, write_domain,
+				  delta, offset, presumed_offset);
+}
+
+
+static void intel_bb_dump_execbuf(struct intel_bb *ibb,
+				  struct drm_i915_gem_execbuffer2 *execbuf)
 {
 	struct drm_i915_gem_exec_object2 *objects;
 	struct drm_i915_gem_relocation_entry *relocs, *reloc;
@@ -1535,7 +1684,8 @@ static void intel_bb_dump_execbuf(struct drm_i915_gem_execbuffer2 *execbuf)
 			 i, objects->handle, objects->relocation_count,
 			 relocs,
 			 objects->alignment,
-			 objects->offset, objects->flags,
+			 objects->offset & (ibb->gtt_size - 1),
+			 objects->flags,
 			 objects->rsvd1, objects->rsvd2);
 		if (objects->relocation_count) {
 			igt_info("\texecbuf relocs:\n");
@@ -1548,7 +1698,7 @@ static void intel_bb_dump_execbuf(struct drm_i915_gem_execbuffer2 *execbuf)
 					 "write_domain: 0x%x\n",
 					 j, reloc->target_handle,
 					 reloc->offset, reloc->delta,
-					 reloc->presumed_offset,
+					 reloc->presumed_offset & (ibb->gtt_size - 1),
 					 reloc->read_domains,
 					 reloc->write_domain);
 			}
@@ -1616,7 +1766,7 @@ int __intel_bb_exec(struct intel_bb *ibb, uint32_t end_offset,
 		gem_sync(ibb->i915, ibb->handle);
 
 	if (ibb->debug) {
-		intel_bb_dump_execbuf(&execbuf);
+		intel_bb_dump_execbuf(ibb, &execbuf);
 		if (intel_bb_debug_tree) {
 			igt_info("\nTree:\n");
 			twalk(ibb->root, print_node);
@@ -1679,7 +1829,7 @@ uint64_t intel_bb_get_object_offset(struct intel_bb *ibb, uint32_t handle)
 	if (!found)
 		return 0;
 
-	return (*found)->offset;
+	return (*found)->offset & (ibb->gtt_size - 1);
 }
 
 /**
@@ -1692,22 +1842,205 @@ uint64_t intel_bb_get_object_offset(struct intel_bb *ibb, uint32_t handle)
  */
 bool intel_bb_object_offset_to_buf(struct intel_bb *ibb, struct intel_buf *buf)
 {
-	struct drm_i915_gem_exec_object2 object = { .handle = buf->handle };
-	struct drm_i915_gem_exec_object2 **found;
+       struct drm_i915_gem_exec_object2 object = { .handle = buf->handle };
+       struct drm_i915_gem_exec_object2 **found;
 
-	igt_assert(ibb);
-	igt_assert(buf);
+       igt_assert(ibb);
+       igt_assert(buf);
 
-	found = tfind((void *) &object, &ibb->root, __compare_objects);
-	if (!found) {
-		buf->addr.offset = 0;
-		buf->addr.ctx = 0;
+       found = tfind((void *) &object, &ibb->root, __compare_objects);
+       if (!found) {
+	       buf->addr.offset = 0;
+	       buf->addr.ctx = 0;
 
-		return false;
+	       return false;
+       }
+
+       buf->addr.offset = (*found)->offset & (ibb->gtt_size - 1);
+       buf->addr.ctx = ibb->ctx;
+
+       return true;
+}
+
+/*
+ * intel_bb_out_flush:
+ * @ibb: batchbuffer
+ *
+ * Outputs flushing code to the batch.
+ */
+uint32_t intel_bb_out_flush(struct intel_bb *ibb)
+{
+	if (intel_bb_offset(ibb) == 0)
+		return 0;
+
+	if (IS_GEN5(ibb->devid)) {
+		/* emit gen5 w/a without batch space checks - we reserve that
+		 * already. */
+		intel_bb_out(ibb, CMD_POLY_STIPPLE_OFFSET << 16);
+		intel_bb_out(ibb, 0);
 	}
 
-	buf->addr.offset = (*found)->offset;
-	buf->addr.ctx = ibb->ctx;
+	/* Round batchbuffer usage to 2 DWORDs. */
+	intel_bb_ptr_align(ibb, 8);
 
-	return true;
+	/* Mark the end of the buffer. */
+	intel_bb_out(ibb, MI_BATCH_BUFFER_END); /* noop */
+	intel_bb_out(ibb, 0);
+
+	return intel_bb_offset(ibb);
+}
+
+/*
+ * intel_bb_flush_with_context:
+ * @ibb: batchbuffer
+ * @ctx: context id
+ *
+ * Submits the batch for execution on the render engine with the supplied
+ * hardware context.
+ */
+void intel_bb_flush_with_context(struct intel_bb *ibb, uint32_t ctx)
+{
+	if (intel_bb_out_flush(ibb) == 0)
+		return;
+
+	intel_bb_exec_with_context(ibb, intel_bb_offset(ibb), ctx,
+				   I915_EXEC_RENDER | I915_EXEC_NO_RELOC,
+				   true);
+	intel_bb_reset(ibb, false);
+}
+
+void intel_bb_flush_on_ring(struct intel_bb *ibb, int ring)
+{
+	unsigned int used = intel_bb_out_flush(ibb);
+	uint32_t ctx;
+
+	if (used == 0)
+		return;
+
+	/* XXX bad kernel API */
+	ctx = ibb->ctx;
+	if (ring != I915_EXEC_RENDER)
+		ctx = 0;
+
+	intel_bb_exec_with_context(ibb, intel_bb_offset(ibb), ctx,
+				   ring | I915_EXEC_NO_RELOC,
+				   true);
+	intel_bb_reset(ibb, false);
+}
+
+void intel_bb_flush(struct intel_bb *ibb)
+{
+	int ring = 0;
+
+	if (HAS_BLT_RING(ibb->devid))
+		ring = I915_EXEC_BLT;
+
+	intel_bb_flush_on_ring(ibb, ring);
+}
+
+uint32_t intel_bb_copy_data(struct intel_bb *ibb,
+			    const void *data, unsigned int bytes,
+			    uint32_t align)
+{
+	uint32_t *subdata, offset;
+
+	igt_assert((bytes & 3) == 0);
+
+	intel_bb_ptr_align(ibb, align);
+	offset = intel_bb_offset(ibb);
+	igt_assert(offset + bytes < ibb->size);
+
+	subdata = intel_bb_ptr(ibb);
+	memcpy(subdata, data, bytes);
+	intel_bb_ptr_add(ibb, bytes);
+
+	return offset;
+}
+
+void intel_bb_blit_start(struct intel_bb *ibb, uint32_t flags)
+{
+	intel_bb_out(ibb, XY_SRC_COPY_BLT_CMD |
+		     XY_SRC_COPY_BLT_WRITE_ALPHA |
+		     XY_SRC_COPY_BLT_WRITE_RGB |
+		     (flags) |
+		     (6 + 2*(ibb->gen >= 8)));
+}
+
+void intel_bb_blt_copy(struct intel_bb *ibb,
+		       struct intel_buf *src,
+		       int src_x1, int src_y1, int src_pitch,
+		       struct intel_buf *dst,
+		       int dst_x1, int dst_y1, int dst_pitch,
+		       int width, int height, int bpp)
+{
+	const int gen = ibb->gen;
+	uint32_t cmd_bits = 0;
+	uint32_t br13_bits;
+
+	igt_assert(bpp*(src_x1 + width) <= 8*src_pitch);
+	igt_assert(bpp*(dst_x1 + width) <= 8*dst_pitch);
+	igt_assert(src_pitch * (src_y1 + height) <= src->size);
+	igt_assert(dst_pitch * (dst_y1 + height) <= dst->size);
+
+	if (gen >= 4 && src->tiling != I915_TILING_NONE) {
+		src_pitch /= 4;
+		cmd_bits |= XY_SRC_COPY_BLT_SRC_TILED;
+	}
+
+	if (gen >= 4 && dst->tiling != I915_TILING_NONE) {
+		dst_pitch /= 4;
+		cmd_bits |= XY_SRC_COPY_BLT_DST_TILED;
+	}
+
+	CHECK_RANGE(src_x1); CHECK_RANGE(src_y1);
+	CHECK_RANGE(dst_x1); CHECK_RANGE(dst_y1);
+	CHECK_RANGE(width); CHECK_RANGE(height);
+	CHECK_RANGE(src_x1 + width); CHECK_RANGE(src_y1 + height);
+	CHECK_RANGE(dst_x1 + width); CHECK_RANGE(dst_y1 + height);
+	CHECK_RANGE(src_pitch); CHECK_RANGE(dst_pitch);
+
+	br13_bits = 0;
+	switch (bpp) {
+	case 8:
+		break;
+	case 16:		/* supporting only RGB565, not ARGB1555 */
+		br13_bits |= 1 << 24;
+		break;
+	case 32:
+		br13_bits |= 3 << 24;
+		cmd_bits |= XY_SRC_COPY_BLT_WRITE_ALPHA |
+			    XY_SRC_COPY_BLT_WRITE_RGB;
+		break;
+	default:
+		igt_fail(IGT_EXIT_FAILURE);
+	}
+
+	intel_bb_blit_start(ibb, cmd_bits);
+	intel_bb_out(ibb, (br13_bits) |
+		  (0xcc << 16) | /* copy ROP */
+		  dst_pitch);
+	intel_bb_out(ibb, (dst_y1 << 16) | dst_x1); /* dst x1,y1 */
+	intel_bb_out(ibb, ((dst_y1 + height) << 16) | (dst_x1 + width)); /* dst x2,y2 */
+	intel_bb_emit_reloc_fenced(ibb, dst->handle,
+				   I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
+				   0, dst->addr.offset);
+	intel_bb_out(ibb, (src_y1 << 16) | src_x1); /* src x1,y1 */
+	intel_bb_out(ibb, src_pitch);
+	intel_bb_emit_reloc_fenced(ibb, src->handle,
+				   I915_GEM_DOMAIN_RENDER, 0,
+				   0, src->addr.offset);
+
+#define CMD_POLY_STIPPLE_OFFSET       0x7906
+	if (gen == 5) {
+		intel_bb_out(ibb, CMD_POLY_STIPPLE_OFFSET << 16);
+		intel_bb_out(ibb, 0);
+	}
+
+	if (gen >= 6 && src->handle == dst->handle) {
+		intel_bb_out(ibb, XY_SETUP_CLIP_BLT_CMD);
+		intel_bb_out(ibb, 0);
+		intel_bb_out(ibb, 0);
+	}
+
+	intel_bb_flush(ibb);
 }
diff --git a/lib/intel_batchbuffer.h b/lib/intel_batchbuffer.h
index 0649fc22..d0bd0197 100644
--- a/lib/intel_batchbuffer.h
+++ b/lib/intel_batchbuffer.h
@@ -433,6 +433,7 @@ struct intel_bb {
 	int i915;
 	int gen;
 	bool debug;
+	bool enforce_relocs;
 	uint32_t devid;
 	uint32_t handle;
 	uint32_t size;
@@ -457,9 +458,12 @@ struct intel_bb {
 };
 
 struct intel_bb *intel_bb_create(int i915, uint32_t size);
-
+struct intel_bb *intel_bb_create_with_relocs(int i915, uint32_t size);
 void intel_bb_destroy(struct intel_bb *ibb);
 void intel_bb_reset(struct intel_bb *ibb, bool purge_objects_cache);
+void intel_bb_sync(struct intel_bb *ibb);
+void intel_bb_print(struct intel_bb *ibb);
+void intel_bb_dump(struct intel_bb *ibb, const char *filename);
 void intel_bb_set_debug(struct intel_bb *ibb, bool debug);
 
 static inline uint32_t intel_bb_offset(struct intel_bb *ibb)
@@ -479,10 +483,22 @@ static inline void intel_bb_ptr_add(struct intel_bb *ibb, uint32_t offset)
 	intel_bb_ptr_set(ibb, intel_bb_offset(ibb) + offset);
 }
 
-static inline void intel_bb_ptr_align(struct intel_bb *ibb,
+static inline uint32_t intel_bb_ptr_add_return_prev_offset(struct intel_bb *ibb,
+							   uint32_t offset)
+{
+	uint32_t previous_offset = intel_bb_offset(ibb);
+
+	intel_bb_ptr_set(ibb, previous_offset + offset);
+
+	return previous_offset;
+}
+
+static inline void *intel_bb_ptr_align(struct intel_bb *ibb,
 				      uint32_t alignment)
 {
 	intel_bb_ptr_set(ibb, ALIGN(intel_bb_offset(ibb), alignment));
+
+	return (void *) ibb->ptr;
 }
 
 static inline void *intel_bb_ptr(struct intel_bb *ibb)
@@ -510,6 +526,13 @@ uint64_t intel_bb_emit_reloc(struct intel_bb *ibb,
 			 uint64_t delta,
 			 uint64_t presumed_offset);
 
+uint64_t intel_bb_emit_reloc_fenced(struct intel_bb *ibb,
+				    uint32_t handle,
+				    uint32_t read_domains,
+				    uint32_t write_domain,
+				    uint64_t delta,
+				    uint64_t presumed_offset);
+
 uint64_t intel_bb_offset_reloc(struct intel_bb *ibb,
 			       uint32_t handle,
 			       uint32_t read_domains,
@@ -517,6 +540,14 @@ uint64_t intel_bb_offset_reloc(struct intel_bb *ibb,
 			       uint32_t offset,
 			       uint64_t presumed_offset);
 
+uint64_t intel_bb_offset_reloc_with_delta(struct intel_bb *ibb,
+					  uint32_t handle,
+					  uint32_t read_domains,
+					  uint32_t write_domain,
+					  uint32_t delta,
+					  uint32_t offset,
+					  uint64_t presumed_offset);
+
 int __intel_bb_exec(struct intel_bb *ibb, uint32_t end_offset,
 		    uint32_t ctx, uint64_t flags, bool sync);
 
@@ -529,4 +560,21 @@ void intel_bb_exec_with_context(struct intel_bb *ibb, uint32_t end_offset,
 uint64_t intel_bb_get_object_offset(struct intel_bb *ibb, uint32_t handle);
 bool intel_bb_object_offset_to_buf(struct intel_bb *ibb, struct intel_buf *buf);
 
+uint32_t intel_bb_out_flush(struct intel_bb *ibb);
+void intel_bb_flush_with_context(struct intel_bb *ibb, uint32_t ctx);
+void intel_bb_flush_on_ring(struct intel_bb *ibb, int ring);
+void intel_bb_flush(struct intel_bb *ibb);
+
+uint32_t intel_bb_copy_data(struct intel_bb *ibb,
+			    const void *data, unsigned int bytes,
+			    uint32_t align);
+
+void intel_bb_blit_start(struct intel_bb *ibb, uint32_t flags);
+
+void intel_bb_blt_copy(struct intel_bb *ibb,
+		       struct intel_buf *src,
+		       int src_x1, int src_y1, int src_pitch,
+		       struct intel_buf *dst,
+		       int dst_x1, int dst_y1, int dst_pitch,
+		       int width, int height, int bpp);
 #endif
-- 
2.26.0

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