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From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: rob.clark@oss.qualcomm.com
Cc: Alexander Koskovich <akoskovich@pm.me>,
	Sean Paul <sean@poorly.run>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Akhil P Oommen <akhilpo@oss.qualcomm.com>,
	Dmitry Baryshkov <lumag@kernel.org>,
	Abhinav Kumar <abhinav.kumar@linux.dev>,
	Jessica Zhang <jesszhan0024@gmail.com>,
	Marijn Suijten <marijn.suijten@somainline.org>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] drm/msm: Fix GMEM_BASE for A650
Date: Mon, 16 Mar 2026 15:34:58 +0100	[thread overview]
Message-ID: <7c862b46-1d8b-4c93-b675-20f735915bb3@oss.qualcomm.com> (raw)
In-Reply-To: <CACSVV00HQY6OfWRSWDcv4KnpwhTO+aLpTXLoQuGutvTTmgJFnw@mail.gmail.com>

On 3/16/26 3:31 PM, Rob Clark wrote:
> On Mon, Mar 16, 2026 at 2:22 AM Konrad Dybcio
> <konrad.dybcio@oss.qualcomm.com> wrote:
>>
>> On 3/14/26 5:14 AM, Alexander Koskovich wrote:
>>> Commit dc220915ddb2 ("drm/msm: Fix GMEM_BASE for gen8") changed the
>>> GMEM_BASE check from adreno_is_a650_family() & adreno_is_a740_family()
>>> to family >= ADRENO_6XX_GEN4.
>>>
>>> This inadvertently excluded A650 (ADRENO_6XX_GEN3), causing it to report
>>> an incorrect GMEM_BASE which results in severe rendering corruption.
>>>
>>> Update check to also include ADRENO_6XX_GEN3 to fix A650.
>>>
>>> Fixes: dc220915ddb2 ("drm/msm: Fix GMEM_BASE for gen8")
>>
>> Hm, that commit also changed the value for A730 - Akhil/Rob, should
>> that be changed back?
> 
> No, it was incorrect before my patch.  The only problem was the change
> happened in a6xx_gen3, not a6xx_gen4.  So this patch is correct.

OK, thanks

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

Konrad

  reply	other threads:[~2026-03-16 14:35 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-14  4:14 Alexander Koskovich
2026-03-16  9:22 ` Konrad Dybcio
2026-03-16 14:28   ` Dmitry Baryshkov
2026-03-16 14:34     ` Rob Clark
2026-03-16 17:13       ` Dmitry Baryshkov
2026-03-16 14:35     ` Konrad Dybcio
2026-03-16 14:31   ` Rob Clark
2026-03-16 14:34     ` Konrad Dybcio [this message]
2026-03-16 20:54     ` Akhil P Oommen
2026-03-16 20:55 ` Akhil P Oommen

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