[refactor] remove unnecessary data from request

The request type contains two much stuff, remove extra pointers to win
some space.

src/aml.h

@@ -767,10 +767,8 @@ extern struct aml_scratch_ops aml_scratch_par_ops;
 
 struct aml_scratch_request_par {
 	int type;
-	struct aml_tiling *stiling;
 	void *srcptr;
 	int srcid;
-	struct aml_tiling *dtiling;
 	void *dstptr;
 	int dstid;
 	struct aml_scratch_par *scratch;

src/scratch_par.c

@@ -15,16 +15,13 @@
  ******************************************************************************/
 
 int aml_scratch_request_par_init(struct aml_scratch_request_par *req, int type,
-				 struct aml_tiling *dt, void *dstptr, int dstid,
-				 struct aml_tiling *st, void *srcptr, int srcid)
+				 void *dstptr, int dstid, void *srcptr, int srcid)
 
 {
 	assert(req != NULL);
 	req->type = type;
-	req->stiling = st;
 	req->srcptr = srcptr;
 	req->srcid = srcid;
-	req->dtiling = dt;
 	req->dstptr = dstptr;
 	req->dstid = dstid;
 	return 0;
@@ -45,8 +42,8 @@ void *aml_scratch_par_do_thread(void *arg)
 		(struct aml_scratch_request_par *)arg;
 	struct aml_scratch_par *scratch = req->scratch;
 
-	aml_dma_copy(scratch->data.dma, req->dtiling, req->dstptr, req->dstid,
-		     req->stiling, req->srcptr, req->srcid);
+	aml_dma_copy(scratch->data.dma, scratch->data.tiling, req->dstptr,
+		     req->dstid, scratch->data.tiling, req->srcptr, req->srcid);
 }
 
 struct aml_scratch_par_ops aml_scratch_par_inner_ops = {
@@ -90,9 +87,7 @@ int aml_scratch_par_create_request(struct aml_scratch_data *d,
 		*srcid = *slot;
 
 		/* init request */
-		aml_scratch_request_par_init(req, type, scratch->data.tiling,
-					     srcptr, *srcid,
-					     scratch->data.tiling,
+		aml_scratch_request_par_init(req, type, srcptr, *srcid,
 					     scratchptr, scratchid);
 	}
 	else if(type == AML_SCRATCH_REQUEST_TYPE_PULL)
@@ -122,10 +117,7 @@ int aml_scratch_par_create_request(struct aml_scratch_data *d,
 		*scratchid = slot;
 
 		/* init request */
-		aml_scratch_request_par_init(req, type,
-					     scratch->data.tiling,
-					     scratchptr, *scratchid,
-					     scratch->data.tiling,
+		aml_scratch_request_par_init(req, type, scratchptr, *scratchid,
 					     srcptr, srcid);
 	}
 	/* thread creation */