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Merge pull request #6235 from jernejsk/aw-h264-fix

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Allwinner: linux: fix H264 buffer size
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Christian Hewitt 2022-02-15 05:28:05 +04:00 committed by GitHub
commit f42fa56ed8
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1 changed files with 38 additions and 0 deletions
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projects/Allwinner/patches/linux/0090-media-cedrus-h264-Fix-neighbour-info-buffer-size.patch Normal file
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@ -0,0 +1,38 @@
From df20a1d7586c8986c986624ca8a9c322f524b515 Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@gmail.com>
Date: Mon, 14 Feb 2022 20:01:26 +0100
Subject: [PATCH] media: cedrus: h264: Fix neighbour info buffer size
According to BSP library source, H264 neighbour info buffer size needs
to be 32 kiB for H6. This is similar to H265 decoding, which also needs
double buffer size in comparison to older Cedrus core generations.
Increase buffer size to cover H6 needs. Since increase is not that big
in absolute numbers, it doesn't make sense to complicate logic for older
generations.
Issue was discovered using iommu and cross checked with BSP library
source.
Fixes: 6eb9b758e307 ("media: cedrus: Add H264 decoding support")
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
drivers/staging/media/sunxi/cedrus/cedrus_h264.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
index b4173a8926d6..d8fb93035470 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
@@ -38,7 +38,7 @@ struct cedrus_h264_sram_ref_pic {
#define CEDRUS_H264_FRAME_NUM 18
-#define CEDRUS_NEIGHBOR_INFO_BUF_SIZE (16 * SZ_1K)
+#define CEDRUS_NEIGHBOR_INFO_BUF_SIZE (32 * SZ_1K)
#define CEDRUS_MIN_PIC_INFO_BUF_SIZE (130 * SZ_1K)
static void cedrus_h264_write_sram(struct cedrus_dev *dev,
--
2.35.1