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Fri, 28 Feb 2020 06:54:23 -0800 Received: from mtkmbs08n1.mediatek.inc (172.21.101.55) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 28 Feb 2020 06:45:04 -0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 28 Feb 2020 22:45:52 +0800 Received: from [172.21.77.4] (172.21.77.4) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 28 Feb 2020 22:44:05 +0800 Message-ID: <1582901053.14824.3.camel@mtksdaap41> Subject: Re: [PATCH v3 06/13] soc: mediatek: cmdq: add assign function From: CK Hu To: Dennis YC Hsieh Date: Fri, 28 Feb 2020 22:44:13 +0800 In-Reply-To: <1582897461-15105-8-git-send-email-dennis-yc.hsieh@mediatek.com> References: <1582897461-15105-1-git-send-email-dennis-yc.hsieh@mediatek.com> <1582897461-15105-8-git-send-email-dennis-yc.hsieh@mediatek.com> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200228_065432_402090_05B3D900 X-CRM114-Status: GOOD ( 16.34 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, srv_heupstream@mediatek.com, wsd_upstream@mediatek.com, Jassi Brar , linux-kernel@vger.kernel.org, Houlong Wei , Rob Herring , linux-mediatek@lists.infradead.org, Bibby Hsieh , Matthias Brugger , Ming-Fan Chen , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Hi, Dennis: On Fri, 2020-02-28 at 21:44 +0800, Dennis YC Hsieh wrote: > Add assign function in cmdq helper which assign constant value into > internal register by index. > Reviewed-by: CK Hu > Signed-off-by: Dennis YC Hsieh > --- > drivers/soc/mediatek/mtk-cmdq-helper.c | 24 +++++++++++++++++++++++- > include/linux/mailbox/mtk-cmdq-mailbox.h | 1 + > include/linux/soc/mediatek/mtk-cmdq.h | 14 ++++++++++++++ > 3 files changed, 38 insertions(+), 1 deletion(-) > > diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c > index 0698612de5ad..8342a5c94bc7 100644 > --- a/drivers/soc/mediatek/mtk-cmdq-helper.c > +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c > @@ -12,6 +12,7 @@ > #define CMDQ_WRITE_ENABLE_MASK BIT(0) > #define CMDQ_POLL_ENABLE_MASK BIT(0) > #define CMDQ_EOC_IRQ_EN BIT(0) > +#define CMDQ_REG_TYPE 1 > > struct cmdq_instruction { > union { > @@ -21,8 +22,17 @@ struct cmdq_instruction { > union { > u16 offset; > u16 event; > + u16 reg_dst; > + }; > + union { > + u8 subsys; > + struct { > + u8 sop:5; > + u8 arg_c_t:1; > + u8 arg_b_t:1; > + u8 dst_t:1; > + }; > }; > - u8 subsys; > u8 op; > }; > > @@ -277,6 +287,18 @@ int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys, > } > EXPORT_SYMBOL(cmdq_pkt_poll_mask); > > +int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value) > +{ > + struct cmdq_instruction inst = { {0} }; > + > + inst.op = CMDQ_CODE_LOGIC; > + inst.dst_t = CMDQ_REG_TYPE; > + inst.reg_dst = reg_idx; > + inst.value = value; > + return cmdq_pkt_append_command(pkt, inst); > +} > +EXPORT_SYMBOL(cmdq_pkt_assign); > + > static int cmdq_pkt_finalize(struct cmdq_pkt *pkt) > { > struct cmdq_instruction inst = { {0} }; > diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h > index dfe5b2eb85cc..121c3bb6d3de 100644 > --- a/include/linux/mailbox/mtk-cmdq-mailbox.h > +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h > @@ -59,6 +59,7 @@ enum cmdq_code { > CMDQ_CODE_JUMP = 0x10, > CMDQ_CODE_WFE = 0x20, > CMDQ_CODE_EOC = 0x40, > + CMDQ_CODE_LOGIC = 0xa0, > }; > > enum cmdq_cb_status { > diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h > index a74c1d5acdf3..83340211e1d3 100644 > --- a/include/linux/soc/mediatek/mtk-cmdq.h > +++ b/include/linux/soc/mediatek/mtk-cmdq.h > @@ -152,6 +152,20 @@ int cmdq_pkt_poll(struct cmdq_pkt *pkt, u8 subsys, > */ > int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys, > u16 offset, u32 value, u32 mask); > + > +/** > + * cmdq_pkt_assign() - Append logic assign command to the CMDQ packet, ask GCE > + * to execute an instruction that set a constant value into > + * internal register and use as value, mask or address in > + * read/write instruction. > + * @pkt: the CMDQ packet > + * @reg_idx: the CMDQ internal register ID > + * @value: the specified value > + * > + * Return: 0 for success; else the error code is returned > + */ > +int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value); > + > /** > * cmdq_pkt_flush_async() - trigger CMDQ to asynchronously execute the CMDQ > * packet and call back at the end of done packet _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek