linux-kernel - [PATCH 2/4] venus: helpers: Add a new helper for buffer processing

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Date:   Fri, 23 Oct 2020 15:57:02 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Vikash Garodia <vgarodia@...eaurora.org>,
        Alexandre Courbot <acourbot@...omium.org>,
        Tomasz Figa <tfiga@...omium.org>,
        Dikshita Agarwal <dikshita@...eaurora.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>
Subject: [PATCH 2/4] venus: helpers: Add a new helper for buffer processing

The new helper will be used from encoder and decoder drivers
to enqueue buffers for processing by firmware.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
---
 drivers/media/platform/qcom/venus/helpers.c | 20 ++++++++++++++++++++
 drivers/media/platform/qcom/venus/helpers.h |  1 +
 2 files changed, 21 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index 2b6925b6c274..8d0ca70d740d 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -1369,6 +1369,26 @@ void venus_helper_vb2_buf_queue(struct vb2_buffer *vb)
 }
 EXPORT_SYMBOL_GPL(venus_helper_vb2_buf_queue);
 
+void venus_helper_process_buf(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
+	int ret;
+
+	cache_payload(inst, vb);
+
+	if (vb2_start_streaming_called(vb->vb2_queue)) {
+		ret = is_buf_refed(inst, vbuf);
+		if (ret)
+			return;
+
+		ret = session_process_buf(inst, vbuf);
+		if (ret)
+			return_buf_error(inst, vbuf);
+	}
+}
+EXPORT_SYMBOL_GPL(venus_helper_process_buf);
+
 void venus_helper_buffers_done(struct venus_inst *inst, unsigned int type,
 			       enum vb2_buffer_state state)
 {
diff --git a/drivers/media/platform/qcom/venus/helpers.h b/drivers/media/platform/qcom/venus/helpers.h
index a4a0562bc83f..dca4794c05d9 100644
--- a/drivers/media/platform/qcom/venus/helpers.h
+++ b/drivers/media/platform/qcom/venus/helpers.h
@@ -19,6 +19,7 @@ void venus_helper_buffers_done(struct venus_inst *inst, unsigned int type,
 int venus_helper_vb2_buf_init(struct vb2_buffer *vb);
 int venus_helper_vb2_buf_prepare(struct vb2_buffer *vb);
 void venus_helper_vb2_buf_queue(struct vb2_buffer *vb);
+void venus_helper_process_buf(struct vb2_buffer *vb);
 void venus_helper_vb2_stop_streaming(struct vb2_queue *q);
 int venus_helper_vb2_start_streaming(struct venus_inst *inst);
 void venus_helper_m2m_device_run(void *priv);
-- 
2.17.1