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Date: Fri, 1 Dec 2023 09:06:45 +0100
From: Johan Hovold <johan@kernel.org>
To: Bjorn Andersson <quic_bjorande@quicinc.com>
Cc: Rob Clark <robdclark@gmail.com>,
	Abhinav Kumar <quic_abhinavk@quicinc.com>,
	Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
	Sean Paul <sean@poorly.run>,
	Marijn Suijten <marijn.suijten@somainline.org>,
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	Bjorn Andersson <andersson@kernel.org>,
	linux-arm-msm@vger.kernel.org, Rob Clark <robdclark@chromium.org>,
	dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] drm/msm/dpu: Add missing safe_lut_tbl in sc8180x catalog
Message-ID: <ZWmUFdWif3QGrqQc@hovoldconsulting.com>
References: <20231130-sc8180x-dpu-safe-lut-v1-1-a8a6bbac36b8@quicinc.com>
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In-Reply-To: <20231130-sc8180x-dpu-safe-lut-v1-1-a8a6bbac36b8@quicinc.com>

On Thu, Nov 30, 2023 at 04:35:01PM -0800, Bjorn Andersson wrote:
> Similar to SC8280XP, the misconfigured SAFE logic causes rather
> significant delays in __arm_smmu_tlb_sync(), resulting in poor
> performance for things such as USB.
> 
> Introduce appropriate SAFE values for SC8180X to correct this.
> 
> Fixes: f3af2d6ee9ab ("drm/msm/dpu: Add SC8180x to hw catalog")

Missing CC stable tag?

> Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>

Johan