linux-kernel - Re: [PATCH v2] soc: mediatek: cmdq: add address shift in jump

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Date:   Sun, 14 Feb 2021 23:16:13 -0600
From:   Jassi Brar <jassisinghbrar@...il.com>
To:     Yongqiang Niu <yongqiang.niu@...iatek.com>
Cc:     CK Hu <ck.hu@...iatek.com>, Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel@...ts.freedesktop.org,
        Devicetree List <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-mediatek@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Damon Chu <damon.chu@...iatek.com>,
        Dennis-YC Hsieh <dennis-yc.hsieh@...iatek.com>
Subject: Re: [PATCH v2] soc: mediatek: cmdq: add address shift in jump

On Thu, Jan 7, 2021 at 7:48 PM Yongqiang Niu <yongqiang.niu@...iatek.com> wrote:
>
> On Wed, 2020-12-23 at 16:34 +0800, Yongqiang Niu wrote:
> > Add address shift when compose jump instruction
> > to compatible with 35bit format.
> >
> > Fixes: 0858fde496f8 ("mailbox: cmdq: variablize address shift in platform")
> >
> > Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> > Reviewed-by: Nicolas Boichat <drinkcat@...omium.org>
> > ---
> >  drivers/mailbox/mtk-cmdq-mailbox.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
> > index 5665b6e..75378e3 100644
> > --- a/drivers/mailbox/mtk-cmdq-mailbox.c
> > +++ b/drivers/mailbox/mtk-cmdq-mailbox.c
> > @@ -168,7 +168,8 @@ static void cmdq_task_insert_into_thread(struct cmdq_task *task)
> >       dma_sync_single_for_cpu(dev, prev_task->pa_base,
> >                               prev_task->pkt->cmd_buf_size, DMA_TO_DEVICE);
> >       prev_task_base[CMDQ_NUM_CMD(prev_task->pkt) - 1] =
> > -             (u64)CMDQ_JUMP_BY_PA << 32 | task->pa_base;
> > +             (u64)CMDQ_JUMP_BY_PA << 32 |
> > +             (task->pa_base >> task->cmdq->shift_pa);
> >       dma_sync_single_for_device(dev, prev_task->pa_base,
> >                                  prev_task->pkt->cmd_buf_size, DMA_TO_DEVICE);
> >
>
> hi jassi
>
> please confirm is there any question about this patch.
> if not, please apply this into next version, tks
>
I can't locate this patch in my inbox. And I can't fwd it from lkml to
myself. Please resend.

thnks.