From: Alexander Fyodorov <halcy@yandex.ru>
To: Alex Deucher <alexdeucher@gmail.com>
Cc: "dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"Christian König" <christian.koenig@amd.com>,
gpudriverdevsupport <gpudriverdevsupport@amd.com>
Subject: Re: r600_dma_ring_test() failed - synchronization problem with write-combining memory
Date: Tue, 14 Oct 2014 18:12:45 +0400 [thread overview]
Message-ID: <3772441413295965@web18g.yandex.ru> (raw)
In-Reply-To: <CADnq5_PpAmw5dWJ4usKkFWtkUSM-AzeNAby6sUeMVMgHLVML5w@mail.gmail.com>
13.10.2014, 21:50, "Alex Deucher" <alexdeucher@gmail.com>:
> On Fri, Oct 10, 2014 at 12:00 PM, Alex Deucher <alexdeucher@gmail.com> wrote:
>> I think I'd prefer to just switch the test to use gart memory since
>> this code is shared by different asics thay may not all implement hdp
>> flush the same way. We can just reserve a couple of slots in the wb
>> page.
>
> Does the attached patch work for you as well?
Yes, although it became a little bit slower - it now completes in 2 usecs.
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prev parent reply other threads:[~2014-10-14 14:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-09 11:39 r600_dma_ring_test() failed - synchronization problem with write-combining memory Alexander Fyodorov
2014-10-09 17:42 ` Christian König
2014-10-09 18:15 ` Alexander Fyodorov
2014-10-09 18:32 ` Christian König
2014-10-09 19:10 ` Alexander Fyodorov
2014-10-10 16:00 ` Alex Deucher
2014-10-10 16:02 ` Alex Deucher
2014-10-10 16:03 ` Christian König
2014-10-13 17:50 ` Alex Deucher
2014-10-14 14:12 ` Alexander Fyodorov [this message]
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