On 01/08/2019 10:33 AM, Ard Biesheuvel wrote:
On Tue, 8 Jan 2019 at 17:24, Jeremy Linton <jeremy.lin...@arm.com> wrote:
Hi,
On 01/08/2019 08:28 AM, Ard Biesheuvel wrote:
Hi Bero,
On Tue, 8 Jan 2019 at 15:25, Bero Rosenkränzer
<bernhard.rosenkran...@linaro.org> wrote:
...
This is bad for the ARM ecosystem, since it is the
only driver we have for NVIDIA hardware, and it has fewer issues than
AMD GPU drivers + hardware running on ARM systenms.
What's the problem with AMD GPU drivers on ARM? Just missing
workarounds for things like the SynQuacer PCIE bug?
On x86, AMD drivers tend to work better than NVIDIA, so maybe the
simple (and acceptable, given NVIDIA refuses to join) fix would be
improving AMD drivers and telling NVIDIA to go to hell...
AMD gfx cards produce lots of visual corruption under Linux on all of
the arm64 boards I tried (including Seattle which has properly working
PCIe), and I have never managed to get anyone interested in looking
into it (although I didn't try /that/ hard tbh)
Presumably amdgpu, and a more recent board? I had good luck with a
hd5450 and the radeon driver although in its default configuration it
expects to bootstrap the card using PCI PIO.
HD5450 is what I used as well. Which h/w did you use? Also, is there
anything wrong with using PCI PIO?
The 5450 spent probably close to two years in a junoR2. The PIO
requirement meant it didn't bootstrap without futzing in most other ARM
machines I tried it in, because.... well... few systems seems to make
sure their firmware/ACPI tables/PIO/etc are functional.
If someone were to take this up seriously, I would hope they would focus
on some newer boards..
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