From: Bob Breuer <breuerr@mc.net>
To: sparclinux@vger.kernel.org
Subject: Re: Fix for HyperSPARC DMA errors
Date: Wed, 10 Nov 2004 05:59:34 +0000 [thread overview]
Message-ID: <4191AFDE.1090909@mc.net> (raw)
In-Reply-To: <419188A0.3010307@mc.net>
Should probably test for hypersparc so it doesn't slow down the non-hypersparcs.
BTW, I had tried __flush_page_to_ram as used in iommu_map_dma_area, but that
didn't work. Might flush_cache_range or something similar work?
David S. Miller wrote:
> On Tue, 9 Nov 2004 21:23:29 -0800
> William Lee Irwin III <wli@holomorphy.com> wrote:
>
>
>>Bob, how do you feel about your arch/sparc/mm/iommu.c flush_cache_all()
>>hack? Would you prefer to have that in mainline for the time being, or
>>would you rather wait until you devise a better solution?
>
>
> I think even this part of Bob's patch should just go in.
> At worst it will slow things down for people, and it will
> fix real bugs for people.
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prev parent reply other threads:[~2004-11-10 5:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-10 3:18 Fix for HyperSPARC DMA errors Bob Breuer
2004-11-10 3:30 ` William Lee Irwin III
2004-11-10 4:55 ` David S. Miller
2004-11-10 5:23 ` William Lee Irwin III
2004-11-10 5:30 ` David S. Miller
2004-11-10 5:59 ` Bob Breuer [this message]
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