From: Dennis-YC Hsieh <dennis-yc.hsieh@mediatek.com>
To: CK Hu <ck.hu@mediatek.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Jassi Brar <jassisinghbrar@gmail.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
"David Airlie" <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>, <linux-kernel@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>,
<devicetree@vger.kernel.org>, <wsd_upstream@mediatek.com>,
<dri-devel@lists.freedesktop.org>,
Bibby Hsieh <bibby.hsieh@mediatek.com>,
Houlong Wei <houlong.wei@mediatek.com>,
<linux-arm-kernel@lists.infradead.org>,
HS Liao <hs.liao@mediatek.com>
Subject: Re: [PATCH v4 11/13] soc: mediatek: cmdq: add jump function
Date: Thu, 5 Mar 2020 08:49:02 +0800 [thread overview]
Message-ID: <1583369342.28558.0.camel@mtkswgap22> (raw)
In-Reply-To: <1583290652.1062.2.camel@mtksdaap41>
Hi CK,
Thanks for your comment.
On Wed, 2020-03-04 at 10:57 +0800, CK Hu wrote:
> Hi, Dennis:
>
> On Tue, 2020-03-03 at 18:58 +0800, Dennis YC Hsieh wrote:
> > Add jump function so that client can jump to any address which
> > contains instruction.
> >
> > Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
> > ---
> > drivers/soc/mediatek/mtk-cmdq-helper.c | 12 ++++++++++++
> > include/linux/soc/mediatek/mtk-cmdq.h | 11 +++++++++++
> > 2 files changed, 23 insertions(+)
> >
> > diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> > index 59bc1164b411..f27c67034880 100644
> > --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> > +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> > @@ -372,6 +372,18 @@ int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value)
> > }
> > EXPORT_SYMBOL(cmdq_pkt_assign);
> >
> > +int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr)
> > +{
> > + struct cmdq_instruction inst = { {0} };
> > +
> > + inst.op = CMDQ_CODE_JUMP;
> > + inst.offset = 1;
>
> Symbolize the value '1'.
miss in v4, will add in next version, thanks.
Regards,
Dennis
>
> Regards,
> CK
>
> > + inst.value = addr >>
> > + cmdq_mbox_shift(((struct cmdq_client *)pkt->cl)->chan);
> > + return cmdq_pkt_append_command(pkt, inst);
> > +}
> > +EXPORT_SYMBOL(cmdq_pkt_jump);
> > +
> > int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
> > {
> > struct cmdq_instruction inst = { {0} };
> > diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
> > index 99e77155f967..1a6c56f3bec1 100644
> > --- a/include/linux/soc/mediatek/mtk-cmdq.h
> > +++ b/include/linux/soc/mediatek/mtk-cmdq.h
> > @@ -213,6 +213,17 @@ 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_jump() - Append jump command to the CMDQ packet, ask GCE
> > + * to execute an instruction that change current thread PC to
> > + * a physical address which should contains more instruction.
> > + * @pkt: the CMDQ packet
> > + * @addr: physical address of target instruction buffer
> > + *
> > + * Return: 0 for success; else the error code is returned
> > + */
> > +int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr);
> > +
> > /**
> > * cmdq_pkt_finalize() - Append EOC and jump command to pkt.
> > * @pkt: the CMDQ packet
>
>
next prev parent reply other threads:[~2020-03-05 0:49 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-03 10:58 [PATCH v4 00/13] support gce on mt6779 platform Dennis YC Hsieh
2020-03-03 10:58 ` [PATCH v4 01/13] dt-binding: gce: add gce header file for mt6779 Dennis YC Hsieh
2020-03-03 14:05 ` Rob Herring
2020-03-03 10:58 ` [PATCH v4 02/13] mailbox: cmdq: variablize address shift in platform Dennis YC Hsieh
2020-03-04 2:32 ` CK Hu
2020-03-04 2:59 ` CK Hu
2020-03-03 10:58 ` [PATCH v4 03/13] mailbox: cmdq: support mt6779 gce platform definition Dennis YC Hsieh
2020-03-03 10:58 ` [PATCH v4 04/13] mailbox: mediatek: cmdq: clear task in channel before shutdown Dennis YC Hsieh
2020-03-04 2:36 ` CK Hu
2020-03-03 10:58 ` [PATCH v4 05/13] soc: mediatek: cmdq: return send msg error code Dennis YC Hsieh
2020-03-04 2:38 ` CK Hu
2020-03-03 10:58 ` [PATCH v4 06/13] soc: mediatek: cmdq: add assign function Dennis YC Hsieh
2020-03-03 10:58 ` [PATCH v4 07/13] soc: mediatek: cmdq: add write_s function Dennis YC Hsieh
2020-03-03 10:58 ` [PATCH v4 08/13] soc: mediatek: cmdq: add read_s function Dennis YC Hsieh
2020-03-03 10:58 ` [PATCH v4 09/13] soc: mediatek: cmdq: add write_s value function Dennis YC Hsieh
2020-03-03 10:58 ` [PATCH v4 10/13] soc: mediatek: cmdq: export finalize function Dennis YC Hsieh
2020-03-04 2:41 ` CK Hu
2020-03-03 10:58 ` [PATCH v4 11/13] soc: mediatek: cmdq: add jump function Dennis YC Hsieh
2020-03-04 2:57 ` CK Hu
2020-03-05 0:49 ` Dennis-YC Hsieh [this message]
2020-03-03 10:58 ` [PATCH v4 12/13] soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api Dennis YC Hsieh
2020-03-04 3:05 ` CK Hu
2020-03-05 0:49 ` Dennis-YC Hsieh
2020-03-03 10:58 ` [PATCH v4 13/13] soc: mediatek: cmdq: add set event function Dennis YC Hsieh
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