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video: rockchip: mpp: rkvdec2: add rcb-min-width info for rcb usage

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tips:
    for rk356x, when image width less than 512, it may occur very
small probability for sram read and write.

Change-Id: I57bdfeb776dc0762870f3d7a3a6d81a1c146240d
Signed-off-by: Ding Wei <leo.ding@rock-chips.com>
This commit is contained in:
Ding Wei
2021-06-01 10:58:03 +08:00
committed by Tao Huang
parent 98eaf1a78a
commit ed9fd83aae
1 changed files with 13 additions and 3 deletions
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16
drivers/video/rockchip/mpp/mpp_rkvdec2.c
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@@ -188,6 +188,7 @@ struct rkvdec2_dev {
u32 rcb_size;
dma_addr_t rcb_iova;
struct page *rcb_page;
u32 rcb_min_width;
};
/*
@@ -338,6 +339,10 @@ static int mpp_set_rcbbuf(struct mpp_dev *mpp,
int i;
u32 reg_idx, rcb_size, rcb_offset;
struct rkvdec2_rcb_info *rcb_inf = &priv->rcb_inf;
u32 width = priv->codec_info[DEC_INFO_WIDTH].val;
if (width < dec->rcb_min_width)
goto done;
rcb_offset = 0;
for (i = 0; i < rcb_inf->cnt; i++) {
@@ -353,7 +358,7 @@ static int mpp_set_rcbbuf(struct mpp_dev *mpp,
rcb_offset += rcb_size;
}
}
done:
mpp_debug_leave();
return 0;
@@ -1070,9 +1075,14 @@ static int rkvdec2_alloc_rcbbuf(struct platform_device *pdev, struct rkvdec2_dev
dec->sram_size = sram_size;
dec->rcb_size = rcb_size;
dec->rcb_iova = iova;
dev_info(dev, "sram_start %pa\n", &sram_start);
dev_info(dev, "rcb_iova %pad\n", &dec->rcb_iova);
dev_info(dev, "sram_size %u\n", dec->sram_size);
dev_info(dev, "rcb_size %u\n", dec->rcb_size);
dev_info(dev, "sram_start %pa, rcb_iova %pad, sram_size %u, rcb_size=%u\n",
&sram_start, &dec->rcb_iova, dec->sram_size, dec->rcb_size);
ret = of_property_read_u32(dev->of_node, "rockchip,rcb-min-width", &dec->rcb_min_width);
if (!ret && dec->rcb_min_width)
dev_info(dev, "min_width %u\n", dec->rcb_min_width);
return 0;