Re: [PATCH v5 10/13] soc: mediatek: cmdq: export finalize function

Dennis-YC Hsieh
2020-05-24T17:32:29Z

Hi Matthias,

Thanks for your comment.

On Sat, 2020-05-16 at 20:22 +0200, Matthias Brugger wrote:
>
> On 08/03/2020 11:52, Dennis YC Hsieh wrote:
> > Export finalize function to client which helps append eoc and jump
> > command to pkt. Let client decide call finalize or not.
> >
> > Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
> > Reviewed-by: CK Hu <ck.hu@mediatek.com>
> > ---
> > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 1 +
> > drivers/soc/mediatek/mtk-cmdq-helper.c | 7 ++-----
> > include/linux/soc/mediatek/mtk-cmdq.h | 8 ++++++++
> > 3 files changed, 11 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> > index 0dfcd1787e65..7daaabc26eb1 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> > @@ -490,6 +490,7 @@ static void mtk_drm_crtc_hw_config(struct mtk_drm_crtc *mtk_crtc)
> > cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event);
> > cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event);
> > mtk_crtc_ddp_config(crtc, cmdq_handle);
> > + cmdq_pkt_finalize(cmdq_handle);
> > cmdq_pkt_flush_async(cmdq_handle, ddp_cmdq_cb, cmdq_handle);
> > }
> > #endif
>
> This should be a independent patch.
> Other then that patch looks good.

ok, I'll separate this part.

Regards,
Dennis

>
> > diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> > index a9ebbabb7439..59bc1164b411 100644
> > --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> > +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> > @@ -372,7 +372,7 @@ int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value)
> > }
> > EXPORT_SYMBOL(cmdq_pkt_assign);
> >
> > -static int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
> > +int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
> > {
> > struct cmdq_instruction inst = { {0} };
> > int err;
> > @@ -392,6 +392,7 @@ static int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
> >
> > return err;
> > }
> > +EXPORT_SYMBOL(cmdq_pkt_finalize);
> >
> > static void cmdq_pkt_flush_async_cb(struct cmdq_cb_data data)
> > {
> > @@ -426,10 +427,6 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb,
> > unsigned long flags = 0;
> > struct cmdq_client *client = (struct cmdq_client *)pkt->cl;
> >
> > - err = cmdq_pkt_finalize(pkt);
> > - if (err < 0)
> > - return err;
> > -
> > pkt->cb.cb = cb;
> > pkt->cb.data = data;
> > pkt->async_cb.cb = cmdq_pkt_flush_async_cb;
> > diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
> > index fec292aac83c..99e77155f967 100644
> > --- a/include/linux/soc/mediatek/mtk-cmdq.h
> > +++ b/include/linux/soc/mediatek/mtk-cmdq.h
> > @@ -213,6 +213,14 @@ int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys,
> > */
> > int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value);
> >
> > +/**
> > + * cmdq_pkt_finalize() - Append EOC and jump command to pkt.
> > + * @pkt: the CMDQ packet
> > + *
> > + * Return: 0 for success; else the error code is returned
> > + */
> > +int cmdq_pkt_finalize(struct cmdq_pkt *pkt);
> > +
> > /**
> > * cmdq_pkt_flush_async() - trigger CMDQ to asynchronously execute the CMDQ
> > * packet and call back at the end of done packet
> >