linux-kernel - Re: [PATCH v3 10/20] drm/msm/a8xx: Add support for A8x GMU

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Message-ID: <eeda046b-cea1-4c57-86b9-217482568b0f@oss.qualcomm.com>
Date: Mon, 17 Nov 2025 15:09:05 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Akhil P Oommen <akhilpo@....qualcomm.com>,
        Rob Clark <robin.clark@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Sean Paul <sean@...rly.run>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar
 <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jesszhan0024@...il.com>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Jonathan Marek <jonathan@...ek.ca>,
        Jordan Crouse
 <jordan@...micpenguin.net>,
        Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Connor Abbott <cwabbott0@...il.com>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v3 10/20] drm/msm/a8xx: Add support for A8x GMU

On 11/14/25 12:29 AM, Akhil P Oommen wrote:
> A8x GMU configuration are very similar to A7x. Unfortunately, there are
> minor shuffling in the register offsets in the GMU CX register region.
> Apart from that, there is a new HFI message support to pass table like
> data. This patch adds support for  perf table using this new HFI
> message.
> 
> Apart from that, there is a minor rework in a6xx_gmu_rpmh_arc_votes_init()
> to simplify handling of MxG to MxA fallback along with the additional
> calculations for the new dependency vote.
> 
> Signed-off-by: Akhil P Oommen <akhilpo@....qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad