media: venus: helpers: add helper function to set actual buffer size

Add and use a helper function to set actual buffer size for
particular buffer type. This is also preparation to use
the second decoder output.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/qcom/venus/helpers.c

@@ -546,6 +546,18 @@ int venus_helper_set_dyn_bufmode(struct venus_inst *inst)
 }
 EXPORT_SYMBOL_GPL(venus_helper_set_dyn_bufmode);
 
+int venus_helper_set_bufsize(struct venus_inst *inst, u32 bufsize, u32 buftype)
+{
+	const u32 ptype = HFI_PROPERTY_PARAM_BUFFER_SIZE_ACTUAL;
+	struct hfi_buffer_size_actual bufsz;
+
+	bufsz.type = buftype;
+	bufsz.size = bufsize;
+
+	return hfi_session_set_property(inst, ptype, &bufsz);
+}
+EXPORT_SYMBOL_GPL(venus_helper_set_bufsize);
+
 static void delayed_process_buf_func(struct work_struct *work)
 {
 	struct venus_buffer *buf, *n;

drivers/media/platform/qcom/venus/helpers.h

@@ -41,6 +41,7 @@ int venus_helper_set_num_bufs(struct venus_inst *inst, unsigned int input_bufs,
 			      unsigned int output_bufs);
 int venus_helper_set_color_format(struct venus_inst *inst, u32 fmt);
 int venus_helper_set_dyn_bufmode(struct venus_inst *inst);
+int venus_helper_set_bufsize(struct venus_inst *inst, u32 bufsize, u32 buftype);
 void venus_helper_acquire_buf_ref(struct vb2_v4l2_buffer *vbuf);
 void venus_helper_release_buf_ref(struct venus_inst *inst, unsigned int idx);
 void venus_helper_init_instance(struct venus_inst *inst);

drivers/media/platform/qcom/venus/vdec.c

@@ -708,7 +708,6 @@ static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
 {
 	struct venus_inst *inst = vb2_get_drv_priv(q);
 	struct venus_core *core = inst->core;
-	u32 ptype;
 	int ret;
 
 	mutex_lock(&inst->lock);
@@ -738,13 +737,8 @@ static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
 		goto deinit_sess;
 
 	if (core->res->hfi_version == HFI_VERSION_3XX) {
-		struct hfi_buffer_size_actual buf_sz;
-
-		ptype = HFI_PROPERTY_PARAM_BUFFER_SIZE_ACTUAL;
-		buf_sz.type = HFI_BUFFER_OUTPUT;
-		buf_sz.size = inst->output_buf_size;
-
-		ret = hfi_session_set_property(inst, ptype, &buf_sz);
+		ret = venus_helper_set_bufsize(inst, inst->output_buf_size,
+					       HFI_BUFFER_OUTPUT);
 		if (ret)
 			goto deinit_sess;
 	}