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Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
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From:
Benjamin Herrenschmidt <benh@...>
To: Gerhard Pircher <gerhard_pircher@...>
Cc: <airlied@...>, <linux-kernel@...>, <dri-devel@...>, <linuxppc-dev@...>
Subject:
Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
Date: Monday, March 3, 2008 - 4:44 pm
On Mon, 2008-03-03 at 20:51 +0100, Gerhard Pircher wrote:
quoted text
> > Remove the GFP_HIGHMEM from the above. It looks like our cache > > flushing isn't going to work for highmem, it would need some > > kmap's for that.
quoted text
> Yes, it looks like this was the problem. No kernel oops anymore. > The machine locks up anyway (which is a well known hardware problem). > It doesn't lock up with CPPIOMode=true, but probably only because the > initialization of DRI fails with "BAD cp_mode (f0000000)!".
Damn, I wonder why you insist trying to make that machine work :-) The hardware is just totally busted. Ben. --
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Messages in current thread:
[RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
, Benjamin Herrenschmidt
, (Sun Nov 25, 7:41 pm)
[BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
, Gerhard Pircher
, (Sun Mar 2, 7:05 am)
Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
, Benjamin Herrenschmidt
, (Sun Mar 2, 4:47 pm)
Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
, Gerhard Pircher
, (Sun Mar 2, 6:30 pm)
Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
, Benjamin Herrenschmidt
, (Sun Mar 2, 6:56 pm)
Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
, Gerhard Pircher
, (Mon Mar 3, 3:51 pm)
Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
, Benjamin Herrenschmidt
, (Mon Mar 3, 4:44 pm)
Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
, Gerhard Pircher
, (Mon Mar 3, 5:37 pm)
Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
, Benjamin Herrenschmidt
, (Sun Mar 2, 6:54 pm)
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