linux-kernel - Re: [PATCH] drm/msm: fix the highest_bank

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Message-ID: <CAE-0n523aJOogAidORYJNGUG4aW9Eq0wzoD3U72i8CFF=BqsaA@mail.gmail.com>
Date: Mon, 12 Aug 2024 11:36:23 -0700
From: Stephen Boyd <swboyd@...omium.org>
To: Abhinav Kumar <quic_abhinavk@...cinc.com>, Daniel Vetter <daniel@...ll.ch>, 
	David Airlie <airlied@...il.com>, Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, Rob Clark <robdclark@...il.com>, 
	Sean Paul <sean@...rly.run>, freedreno@...ts.freedesktop.org
Cc: dri-devel@...ts.freedesktop.org, quic_jesszhan@...cinc.com, 
	dianders@...omium.org, linux-arm-msm@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/msm: fix the highest_bank_bit for sc7180

Quoting Abhinav Kumar (2024-08-08 16:52:27)
> sc7180 programs the ubwc settings as 0x1e as that would mean a
> highest bank bit of 14 which matches what the GPU sets as well.
>
> However, the highest_bank_bit field of the msm_mdss_data which is
> being used to program the SSPP's fetch configuration is programmed
> to a highest bank bit of 16 as 0x3 translates to 16 and not 14.
>
> Fix the highest bank bit field used for the SSPP to match the mdss
> and gpu settings.
>
> Fixes: 6f410b246209 ("drm/msm/mdss: populate missing data")
> Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
> ---

Tested-by: Stephen Boyd <swboyd@...omium.org> # Trogdor.Lazor