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Message-ID: <4bd5aad43622742f1078f8bc4167803ed20f6a68.camel@mediatek.com>
Date: Mon, 3 Jul 2023 04:11:12 +0000
From: Irui Wang (王瑞) <Irui.Wang@...iatek.com>
To: "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
"mchehab@...nel.org" <mchehab@...nel.org>,
"hverkuil-cisco@...all.nl" <hverkuil-cisco@...all.nl>
CC: "linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
Maoguang Meng (孟毛广)
<Maoguang.Meng@...iatek.com>,
"linux-mediatek@...ts.infradead.org"
<linux-mediatek@...ts.infradead.org>,
Yunfei Dong (董云飞)
<Yunfei.Dong@...iatek.com>,
Project_Global_Chrome_Upstream_Group
<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [PATCH] media: mediatek: vcodec: Add a flag to indicate vdec_fb
finding status
Dear all,
A new patch v2 has been sent:
https://patchwork.kernel.org/project/linux-media/list/?series=761892
current patch is superseded and can be abandoned.
Thank you very much
On Sat, 2023-07-01 at 17:05 +0800, Irui Wang wrote:
> "fb_use_list" is vp9 stateful decoder driver to store current
> used or referenced frame buffer, and "fb_free_list" is used to
> store current available to be freed frame buffer. When the
> target frame buffer cannot be found in "fb_use_list", "NULL"
> should be returned to prevent unexpected frame buffer from being
> placed into "fb_free_list".
>
> Signed-off-by: Irui Wang <irui.wang@...iatek.com>
> ---
> drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git
> a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c
> b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c
> index 70b8383f7c8e..e77d5a2452c1 100644
> --- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c
> +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c
> @@ -220,15 +220,21 @@ static struct vdec_fb
> *vp9_rm_from_fb_use_list(struct vdec_vp9_inst
> {
> struct vdec_fb *fb = NULL;
> struct vdec_fb_node *node;
> + bool found = false;
>
> list_for_each_entry(node, &inst->fb_use_list, list) {
> fb = (struct vdec_fb *)node->fb;
> if (fb->base_y.va == addr) {
> list_move_tail(&node->list,
> &inst->available_fb_node_list);
> + found = true;
> break;
> }
> }
> +
> + if (!found)
> + fb = NULL;
> +
> return fb;
> }
>
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