From: David Mosberger <davidm@hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] framebuffer console
Date: Wed, 24 Oct 2001 23:21:08 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590698805388@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590698805378@msgid-missing>
>>>>> On Wed, 24 Oct 2001 12:26:59 +0100, Richard Hirst <rhirst@linuxcare.com> said:
Richard> This patch solves the problem. Still surprised that cached
Richard> accesses to the video memory crash the machine though..
My understanding is that Merced doesn't handle cache line sized
transactions to the PCI bus. Instead of going uncached, you might be
able to use write-combining (for the video framebuffer, not for memory
mapped control registers). That can give you noticably better
performance.
--david
next prev parent reply other threads:[~2001-10-24 23:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-24 10:30 [Linux-ia64] framebuffer console Richard Hirst
2001-10-24 11:26 ` Richard Hirst
2001-10-24 12:14 ` Roman Hodek
2001-10-24 12:14 ` Roman Hodek
2001-10-24 23:21 ` David Mosberger [this message]
2001-11-04 22:06 ` Richard Hirst
2001-11-06 1:12 ` David Mosberger
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