linux-kernel - Re: [PATCH v2 0/3] drm/panthor: Coherency related fixes

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Message-ID: <Zz3NFRSF1GEbtbEN@e110455-lin.cambridge.arm.com>
Date: Wed, 20 Nov 2024 11:50:45 +0000
From: Liviu Dudau <liviu.dudau@....com>
To: Akash Goel <akash.goel@....com>
Cc: boris.brezillon@...labora.com, steven.price@....com,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	mihail.atanassov@....com, ketil.johnsen@....com,
	florent.tomasin@....com, maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com,
	daniel@...ll.ch, nd@....com
Subject: Re: [PATCH v2 0/3] drm/panthor: Coherency related fixes

On Wed, Oct 30, 2024 at 10:54:04PM +0000, Akash Goel wrote:
> This patch series contains 3 cache coherency related fixes for the
> Panthor driver.
> - The first fix, regarding the Inner-shareability, is mandatory to
>   ensure things work on all platforms (including Juno FPGA) when
>   no_coherency protocol is selected.
> - The second fix regarding the coherency feature/enable register is
>   required to avoid potential misalignment on certain platforms.
> - The third fix, regarding the potential overwrite of buffer objects,
>   has been prepared speculatively & it may not be required in practice.
> 
> v2:
> - Added r-b tags for the first 2 patches
> 
> Akash Goel (3):
>   drm/panthor: Update memattr programing to align with GPU spec
>   drm/panthor: Explicitly set the coherency mode

Pushed the first two patches to drm-misc-next.

Best regards,
Liviu

>   drm/panthor: Prevent potential overwrite of buffer objects
> 
>  drivers/gpu/drm/panthor/panthor_device.c | 22 ++++++++++++++++++-
>  drivers/gpu/drm/panthor/panthor_gem.h    | 10 +++++++++
>  drivers/gpu/drm/panthor/panthor_gpu.c    |  9 ++++++++
>  drivers/gpu/drm/panthor/panthor_mmu.c    | 28 +++++++++++++++++-------
>  4 files changed, 60 insertions(+), 9 deletions(-)
> 
> -- 
> 2.25.1
> 

-- 
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