linux-kernel - [PATCH] media: coda: Keep metas sync with hardware fifo

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Message-Id: <20211108142404.598968-1-benjamin.gaignard@collabora.com>
Date:   Mon,  8 Nov 2021 15:24:04 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...labora.com>
To:     p.zabel@...gutronix.de, mchehab@...nel.org
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [PATCH] media: coda: Keep metas sync with hardware fifo

After updating the output fifo position be sure that metas are also
synchronised with this position.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
---
 drivers/media/platform/coda/coda-bit.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index c484c008ab02..28c56286b0de 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -2315,6 +2315,12 @@ static void coda_finish_decode(struct coda_ctx *ctx)
 	/* Update kfifo out pointer from coda bitstream read pointer */
 	coda_kfifo_sync_from_device(ctx);
 
+	/*
+	 * After updating the read pointer, we need to check if
+	 * any metas are consumed and should be released.
+	 */
+	coda_decoder_drop_used_metas(ctx);
+
 	/*
 	 * in stream-end mode, the read pointer can overshoot the write pointer
 	 * by up to 512 bytes
-- 
2.30.2