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From: Matthias Brugger <matthias.bgg@gmail.com>
To: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Jassi Brar <jassisinghbrar@gmail.com>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>
Cc: devicetree@vger.kernel.org, wsd_upstream@mediatek.com,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	HS Liao <hs.liao@mediatek.com>,
	linux-mediatek@lists.infradead.org,
	Houlong Wei <houlong.wei@mediatek.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 06/13] soc: mediatek: cmdq: add assign function
Date: Sat, 16 May 2020 19:59:06 +0200	[thread overview]
Message-ID: <c671ea8a-07fa-a050-4679-c7aa15d19a9d@gmail.com> (raw)
In-Reply-To: <1583664775-19382-7-git-send-email-dennis-yc.hsieh@mediatek.com>



On 08/03/2020 11:52, Dennis YC Hsieh wrote:
> Add assign function in cmdq helper which assign constant value into
> internal register by index.
> 
> Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
> Reviewed-by: CK Hu <ck.hu@mediatek.com>
> ---
>  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 98f23ba3ba47..33153d17c9d9 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;
> +		};

This union seems without context in this patch. Please drop.

Regards,
Matthias

>  	};
> -	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
> 
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  reply	other threads:[~2020-05-16 17:59 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-08 10:52 [PATCH v5 00/13] support gce on mt6779 platform Dennis YC Hsieh
2020-03-08 10:52 ` [PATCH v5 01/13] dt-binding: gce: add gce header file for mt6779 Dennis YC Hsieh
2020-03-08 10:52 ` [PATCH v5 02/13] mailbox: cmdq: variablize address shift in platform Dennis YC Hsieh
2020-03-20  1:05   ` Jassi Brar
2020-03-23  1:11     ` Dennis-YC Hsieh
2020-03-08 10:52 ` [PATCH v5 03/13] mailbox: cmdq: support mt6779 gce platform definition Dennis YC Hsieh
2020-05-16 16:10   ` Matthias Brugger
2020-03-08 10:52 ` [PATCH v5 04/13] mailbox: mediatek: cmdq: clear task in channel before shutdown Dennis YC Hsieh
2020-03-08 10:52 ` [PATCH v5 05/13] soc: mediatek: cmdq: return send msg error code Dennis YC Hsieh
2020-05-16 17:56   ` Matthias Brugger
2020-03-08 10:52 ` [PATCH v5 06/13] soc: mediatek: cmdq: add assign function Dennis YC Hsieh
2020-05-16 17:59   ` Matthias Brugger [this message]
2020-05-24 17:01     ` Dennis-YC Hsieh
2020-05-24 18:09       ` Matthias Brugger
2020-03-08 10:52 ` [PATCH v5 07/13] soc: mediatek: cmdq: add write_s function Dennis YC Hsieh
2020-05-16 18:14   ` Matthias Brugger
2020-05-24 17:26     ` Dennis-YC Hsieh
2020-05-24 18:12       ` Matthias Brugger
2020-03-08 10:52 ` [PATCH v5 08/13] soc: mediatek: cmdq: add read_s function Dennis YC Hsieh
2020-03-08 10:52 ` [PATCH v5 09/13] soc: mediatek: cmdq: add write_s value function Dennis YC Hsieh
2020-05-16 18:20   ` Matthias Brugger
2020-05-24 17:31     ` Dennis-YC Hsieh
2020-05-24 18:13       ` Matthias Brugger
2020-05-25  2:27         ` Dennis-YC Hsieh
2020-05-25  8:39           ` Matthias Brugger
2020-05-25 10:38             ` Dennis-YC Hsieh
2020-05-25 13:59               ` Matthias Brugger
2020-03-08 10:52 ` [PATCH v5 10/13] soc: mediatek: cmdq: export finalize function Dennis YC Hsieh
2020-05-16 18:22   ` Matthias Brugger
2020-05-24 17:32     ` Dennis-YC Hsieh
2020-05-25  0:23     ` Chun-Kuang Hu
2020-05-25  8:38       ` Matthias Brugger
2020-05-25 10:48         ` Chun-Kuang Hu
2020-03-08 10:52 ` [PATCH v5 11/13] soc: mediatek: cmdq: add jump function Dennis YC Hsieh
2020-03-09  1:48   ` CK Hu
2020-03-08 10:52 ` [PATCH v5 12/13] soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api Dennis YC Hsieh
2020-03-09  2:07   ` CK Hu
2020-05-16 18:30   ` Matthias Brugger
2020-05-24 17:32     ` Dennis-YC Hsieh
2020-03-08 10:52 ` [PATCH v5 13/13] soc: mediatek: cmdq: add set event function Dennis YC Hsieh
2020-05-16 18:32   ` Matthias Brugger
2020-05-24 17:39     ` Dennis-YC Hsieh
2020-05-24 18:15       ` Matthias Brugger

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