From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Ariel D'Alessandro <ariel.dalessandro@collabora.com>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Cc: boris.brezillon@collabora.com, robh@kernel.org,
steven.price@arm.com, maarten.lankhorst@linux.intel.com,
mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com,
simona@ffwll.ch, kernel@collabora.com,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, sjoerd@collabora.com
Subject: Re: [PATCH v2 4/6] drm/panfrost: Add support for AARCH64_4K page table format
Date: Mon, 17 Mar 2025 09:49:49 +0100 [thread overview]
Message-ID: <e217363f-5492-486e-8063-8e3eed047b00@collabora.com> (raw)
In-Reply-To: <20250314173858.212264-5-ariel.dalessandro@collabora.com>
Il 14/03/25 18:38, Ariel D'Alessandro ha scritto:
> Currently, Panfrost only supports MMU configuration in "LEGACY" (as
> Bifrost calls it) mode, a (modified) version of LPAE "Large Physical
> Address Extension", which in Linux we've called "mali_lpae".
>
> This commit adds support for conditionally enabling AARCH64_4K page
> table format. To achieve that, a "GPU optional quirks" field was added
> to `struct panfrost_features` with the related flag.
>
> Note that, in order to enable AARCH64_4K mode, the GPU variant must have
> the HW_FEATURE_AARCH64_MMU feature flag present.
>
> Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
I would've preferred the LEGACY format to be a quirk, instead of AARCH64, but
okay.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
next prev parent reply other threads:[~2025-03-17 8:49 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-14 17:38 [PATCH v2 0/6] " Ariel D'Alessandro
2025-03-14 17:38 ` [PATCH v2 1/6] drm/panfrost: Set IOMMU_CACHE flag Ariel D'Alessandro
2025-03-14 17:38 ` [PATCH v2 2/6] drm/panfrost: Use GPU_MMU_FEATURES_VA_BITS/PA_BITS macros Ariel D'Alessandro
2025-03-17 8:50 ` AngeloGioacchino Del Regno
2025-03-14 17:38 ` [PATCH v2 3/6] drm/panfrost: Set HW_FEATURE_AARCH64_MMU feature flag on Bifrost models Ariel D'Alessandro
2025-03-17 8:50 ` AngeloGioacchino Del Regno
2025-03-14 17:38 ` [PATCH v2 4/6] drm/panfrost: Add support for AARCH64_4K page table format Ariel D'Alessandro
2025-03-15 8:43 ` Boris Brezillon
2025-03-17 12:34 ` Ariel D'Alessandro
2025-03-17 8:49 ` AngeloGioacchino Del Regno [this message]
2025-03-14 17:38 ` [PATCH v2 5/6] drm/panfrost: Force AARCH64_4K page table format on MediaTek MT8188 Ariel D'Alessandro
2025-03-15 8:46 ` Boris Brezillon
2025-03-14 17:38 ` [PATCH v2 6/6] drm/panfrost: Force AARCH64_4K page table format on MediaTek MT8192 Ariel D'Alessandro
2025-03-15 8:47 ` Boris Brezillon
2025-03-17 8:50 ` AngeloGioacchino Del Regno
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