linux-kernel - Re: [PATCH v2 03/17] drm/msm/dpu: Move non-MDP_TOP INTF

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Date:   Mon, 24 Apr 2023 13:44:55 -0700
From:   Abhinav Kumar <quic_abhinavk@...cinc.com>
To:     Marijn Suijten <marijn.suijten@...ainline.org>,
        Rob Clark <robdclark@...il.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        "Sean Paul" <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Adam Skladowski <a39.skl@...il.com>,
        Loic Poulain <loic.poulain@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        "Kuogee Hsieh" <quic_khsieh@...cinc.com>,
        Robert Foss <rfoss@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Rajesh Yadav <ryadav@...eaurora.org>,
        Jeykumar Sankaran <jsanka@...eaurora.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        "Chandan Uddaraju" <chandanu@...eaurora.org>
CC:     <~postmarketos/upstreaming@...ts.sr.ht>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Martin Botka <martin.botka@...ainline.org>,
        "Jami Kettunen" <jami.kettunen@...ainline.org>,
        <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        Jordan Crouse <jordan@...micpenguin.net>,
        Archit Taneja <architt@...eaurora.org>,
        Sravanthi Kollukuduru <skolluku@...eaurora.org>
Subject: Re: [PATCH v2 03/17] drm/msm/dpu: Move non-MDP_TOP INTF_INTR offsets
 out of hwio header



On 4/17/2023 1:21 PM, Marijn Suijten wrote:
> These offsets do not fall under the MDP TOP block and do not fit the
> comment right above.  Move them to dpu_hw_interrupts.c next to the
> repsective MDP_INTF_x_OFF interrupt block offsets.
> 
> Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
> Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>

This change itself is fine, hence

Reviewed-by: Abhinav Kumar <quic_abhinavk@...cinc.com>

One comment below.

> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c | 5 ++++-
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hwio.h          | 3 ---
>   2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
> index 53326f25e40e..85c0bda3ff90 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
> @@ -15,7 +15,7 @@
>   
>   /*
>    * Register offsets in MDSS register file for the interrupt registers
> - * w.r.t. to the MDP base
> + * w.r.t. the MDP base
>    */
>   #define MDP_SSPP_TOP0_OFF		0x0
>   #define MDP_INTF_0_OFF			0x6A000
> @@ -24,6 +24,9 @@
>   #define MDP_INTF_3_OFF			0x6B800
>   #define MDP_INTF_4_OFF			0x6C000
>   #define MDP_INTF_5_OFF			0x6C800
> +#define INTF_INTR_EN			0x1c0
> +#define INTF_INTR_STATUS		0x1c4
> +#define INTF_INTR_CLEAR			0x1c8
>   #define MDP_AD4_0_OFF			0x7C000
>   #define MDP_AD4_1_OFF			0x7D000
>   #define MDP_AD4_INTR_EN_OFF		0x41c
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hwio.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hwio.h
> index feb9a729844a..5acd5683d25a 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hwio.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hwio.h
> @@ -21,9 +21,6 @@
>   #define HIST_INTR_EN                    0x01c
>   #define HIST_INTR_STATUS                0x020
>   #define HIST_INTR_CLEAR                 0x024

Even HIST_INTR_*** need to be moved then.

> -#define INTF_INTR_EN                    0x1C0
> -#define INTF_INTR_STATUS                0x1C4
> -#define INTF_INTR_CLEAR                 0x1C8
>   #define SPLIT_DISPLAY_EN                0x2F4
>   #define SPLIT_DISPLAY_UPPER_PIPE_CTRL   0x2F8
>   #define DSPP_IGC_COLOR0_RAM_LUTN        0x300
>