From: Matthias Brugger <mbrugger@suse.com>
To: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
CK Hu <ck.hu@mediatek.com>,
Bibby Hsieh <bibby.hsieh@mediatek.com>,
Houlong Wei <houlong.wei@mediatek.com>
Cc: 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,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 7/9] soc: mediatek: cmdq: add jump function
Date: Mon, 21 Sep 2020 18:18:54 +0200 [thread overview]
Message-ID: <1b66c203-e0ea-79f9-6856-a9be3e410dd2@suse.com> (raw)
In-Reply-To: <1594136714-11650-8-git-send-email-dennis-yc.hsieh@mediatek.com>
On 07/07/2020 17:45, 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>
Now pushed to v5.9-next/soc
Thanks!
> ---
> drivers/soc/mediatek/mtk-cmdq-helper.c | 13 +++++++++++++
> include/linux/soc/mediatek/mtk-cmdq.h | 11 +++++++++++
> 2 files changed, 24 insertions(+)
>
> diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> index b6e25f216605..d55dc3296105 100644
> --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> @@ -13,6 +13,7 @@
> #define CMDQ_POLL_ENABLE_MASK BIT(0)
> #define CMDQ_EOC_IRQ_EN BIT(0)
> #define CMDQ_REG_TYPE 1
> +#define CMDQ_JUMP_RELATIVE 1
>
> struct cmdq_instruction {
> union {
> @@ -407,6 +408,18 @@ 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 = {};
> +
> + inst.op = CMDQ_CODE_JUMP;
> + inst.offset = CMDQ_JUMP_RELATIVE;
> + inst.value = addr >>
> + cmdq_get_shift_pa(((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 d9390d76ee14..34354e952f60 100644
> --- a/include/linux/soc/mediatek/mtk-cmdq.h
> +++ b/include/linux/soc/mediatek/mtk-cmdq.h
> @@ -253,6 +253,17 @@ 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
> *
>
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next prev parent reply other threads:[~2020-09-22 7:48 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 15:45 [PATCH v3 0/9] support cmdq helper function on mt6779 platform Dennis YC Hsieh
2020-07-07 15:45 ` [PATCH v3 1/9] soc: mediatek: cmdq: add address shift in jump Dennis YC Hsieh
2020-07-08 7:27 ` Bibby Hsieh
2020-09-21 16:15 ` Matthias Brugger
2020-07-07 15:45 ` [PATCH v3 2/9] soc: mediatek: cmdq: add write_s function Dennis YC Hsieh
2020-09-21 16:15 ` Matthias Brugger
2020-07-07 15:45 ` [PATCH v3 3/9] soc: mediatek: cmdq: add write_s_mask function Dennis YC Hsieh
2020-09-21 16:15 ` Matthias Brugger
2020-07-07 15:45 ` [PATCH v3 4/9] soc: mediatek: cmdq: add read_s function Dennis YC Hsieh
2020-09-21 16:16 ` Matthias Brugger
2020-07-07 15:45 ` [PATCH v3 5/9] soc: mediatek: cmdq: add write_s value function Dennis YC Hsieh
2020-09-21 16:16 ` Matthias Brugger
2020-07-07 15:45 ` [PATCH v3 6/9] soc: mediatek: cmdq: add write_s_mask " Dennis YC Hsieh
2020-09-21 16:16 ` Matthias Brugger
2020-07-07 15:45 ` [PATCH v3 7/9] soc: mediatek: cmdq: add jump function Dennis YC Hsieh
2020-09-21 16:18 ` Matthias Brugger [this message]
2020-07-07 15:45 ` [PATCH v3 8/9] soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api Dennis YC Hsieh
2020-07-07 23:04 ` Chun-Kuang Hu
2020-09-21 16:19 ` Matthias Brugger
2020-09-21 16:25 ` Dennis-YC Hsieh
2020-07-07 15:45 ` [PATCH v3 9/9] drm/mediatek: reduce clear event Dennis YC Hsieh
2020-07-07 23:01 ` Chun-Kuang Hu
2020-09-21 16:37 ` Matthias Brugger
2020-07-09 2:39 ` Bibby Hsieh
2020-09-21 16:36 ` Matthias Brugger
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