From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steffen Persvold Date: Fri, 14 Sep 2001 21:57:03 +0000 Subject: [Linux-ia64] Status on ioremap patch Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org Steffen Persvold wrote: > > David Mosberger wrote: > > > > >>>>> On Mon, 10 Sep 2001 17:26:47 +0200, Steffen Persvold said: > > > > Steffen> This is what my original post (which included a patch) > > Steffen> tried to do, but I didn't get it too work. I know you gave > > Steffen> me feedback on this David, saying that it just may need > > Steffen> some debugging. Does anyone on the list have the time to > > Steffen> just look through the patch and try to analyze what's going > > Steffen> wrong (or maybe just give me some hints on what to look > > Steffen> for) ? > > > > I don't, not in the near future at least. > > > > There is nothing magical about debugging on ia64. Just use the normal > > techniques: try to narrow down what's triggering the problem, e.g., > > via binary search, printk, etc. A kdb patch is also available. > > > > Yep, I know. But I managed to solve it without the use of kdb. It was just a > question of using the right __pgprot flags. I've attached a new patch, it's made > against 2.4.4 but it also applies cleanly to a vanilla 2.4.9 tree. I guess this > means that we don't have to use the uncached region 6 anymore; ioremap() could > be modified to use __ia64_ioremap() with the _PAGE_MA_WC attribute and > ioremap_nocache() to with the _PAGE_MA_UC attribute. Any comments ? > > I sure hope that this is patch that you would consider going into the main ia64 > tree. > So, how about that patch guys ? Any chance you'll put it into the mainstream IA64 kernel ??? Regards, -- Steffen Persvold | Scali Computer AS | Try out the world's best mailto:sp@scali.no | http://www.scali.com | performing MPI implementation: Tel: (+47) 2262 8950 | Olaf Helsets vei 6 | - ScaMPI 1.12.2 - Fax: (+47) 2262 8951 | N0621 Oslo, NORWAY | >300MBytes/s and <4uS latency