linux-kernel - Re: framebuffer corruption due to overlapping stp instructions on arm64

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Message-ID: <fd2cae87-b2df-d8ef-8836-e6cbf8c5f851@redhat.com>
Date:   Sun, 5 Aug 2018 20:33:06 +0200
From:   Florian Weimer <fweimer@...hat.com>
To:     Mikulas Patocka <mpatocka@...hat.com>,
        Andrew Pinski <pinskia@...il.com>
Cc:     Richard Earnshaw <Richard.Earnshaw@....com>,
        ard.biesheuvel@...aro.org,
        Ramana Radhakrishnan <ramana.gcc@...glemail.com>,
        thomas.petazzoni@...e-electrons.com,
        GNU C Library <libc-alpha@...rceware.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>, linux@...linux.org.uk,
        LKML <linux-kernel@...r.kernel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: framebuffer corruption due to overlapping stp instructions on
 arm64

On 08/04/2018 01:04 PM, Mikulas Patocka wrote:
> There's plenty of memcpy's in the graphics stack. No one will be rewriting
> all the graphics drivers because of tiny market share that ARM has in
> desktop computers. So if you refuse to fix things and blame everyone else,
> you can as well announce that you don't want to have PCIe graphics on ARM
> at all.

The POWER toolchain maintainers said pretty much the same thing not too 
long ago.  I wonder how many architectures need to fail until the 
graphics stack is finally fixed.

Thanks,
Florian