From: Alyssa Rosenzweig <alyssa@rosenzweig.io>
To: Robin Murphy <robin.murphy@arm.com>
Cc: Rob Herring <robh@kernel.org>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Will Deacon <will.deacon@arm.com>, Joerg Roedel <joro@8bytes.org>,
iommu@lists.linux-foundation.org,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <maxime.ripard@bootlin.com>,
Sean Paul <sean@poorly.run>, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>, Lyude Paul <lyude@redhat.com>,
Eric Anholt <eric@anholt.net>,
Neil Armstrong <narmstrong@baylibre.com>,
"Marty E . Plummer" <hanetzer@startmail.com>,
Tomeu Vizoso <tomeu.vizoso@collabora.com>
Subject: Re: [PATCH v2 3/3] drm/panfrost: Add initial panfrost driver
Date: Mon, 1 Apr 2019 17:33:26 -0700 [thread overview]
Message-ID: <20190402003326.GB12934@rosenzweig.io> (raw)
In-Reply-To: <6ce32759-ea83-ee79-33d3-237737f7b866@arm.com>
> the userspace definitely doesn't support T624
This is true, yes. Shouldn't be too hard to backport; if there's still
interest in Midgard 1st/2nd gen, I suppose I can grab hardware and sort
it out...
> You probably want a dma_set_mask_and_coherent() call for your 'real' output
> address size somewhere - the default 32-bit mask works out OK for RK3399,
> but on systems with RAM above 4GB io-pgtable will get very unhappy about DMA
> bounce-buffering.
Out of curiosity, are there Mali systems with >4GB RAM? That sounds
awesome :)
> Any chance of resurrecting the generic "arm,mali-midgard" compatible? :P
...Would that require editing everybody's DT file?
-----
Thank you for the review!
next prev parent reply other threads:[~2019-04-02 0:33 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-01 7:47 [PATCH v2 0/3] Initial Panfrost driver Rob Herring
2019-04-01 7:47 ` [PATCH v3 1/3] iommu: io-pgtable: Add ARM Mali midgard MMU page table format Rob Herring
2019-04-01 19:11 ` Robin Murphy
2019-04-05 10:02 ` Robin Murphy
2019-04-11 13:15 ` Joerg Roedel
2019-04-05 9:42 ` Steven Price
2019-04-05 9:51 ` Robin Murphy
2019-04-05 10:36 ` Steven Price
2019-04-08 8:56 ` Steven Price
2019-04-01 7:47 ` [PATCH v2 2/3] drm: Add a drm_gem_objects_lookup helper Rob Herring
2019-04-01 13:06 ` Daniel Vetter
2019-04-01 13:48 ` Chris Wilson
2019-04-01 15:43 ` Eric Anholt
2019-04-08 20:09 ` Rob Herring
2019-04-09 16:55 ` Eric Anholt
2019-04-01 16:59 ` Rob Herring
2019-04-01 18:22 ` Eric Anholt
2019-04-01 7:47 ` [PATCH v2 3/3] drm/panfrost: Add initial panfrost driver Rob Herring
2019-04-01 8:24 ` Neil Armstrong
2019-04-01 19:17 ` Robin Murphy
2019-04-01 16:02 ` Eric Anholt
2019-04-01 19:12 ` Robin Murphy
2019-04-02 0:33 ` Alyssa Rosenzweig [this message]
2019-04-02 11:23 ` Robin Murphy
2019-04-03 4:57 ` Rob Herring
2019-04-05 12:57 ` Robin Murphy
2019-04-05 12:30 ` Steven Price
2019-04-05 16:16 ` Alyssa Rosenzweig
2019-04-05 16:42 ` Steven Price
2019-04-05 16:53 ` Alyssa Rosenzweig
2019-04-15 9:18 ` Daniel Vetter
2019-04-15 9:30 ` Steven Price
2019-04-16 7:51 ` Daniel Vetter
2019-04-08 21:04 ` Rob Herring
2019-04-09 15:56 ` Tomeu Vizoso
2019-04-09 16:15 ` Rob Herring
2019-04-10 10:28 ` Steven Price
2019-04-10 10:19 ` Steven Price
2019-04-10 11:50 ` Tomeu Vizoso
2019-04-01 15:05 ` [PATCH v2 0/3] Initial Panfrost driver Alyssa Rosenzweig
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