This is a note to let you know that I've just added the patch titled
drm/nouveau: fix init with agpgart-uninorth
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-nouveau-fix-init-with-agpgart-uninorth.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 55fa88bba3378e444ab8c2fe21f6f7e0046355a8 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@xxxxxx>
Date: Mon, 31 Dec 2012 03:34:59 +0200
Subject: drm/nouveau: fix init with agpgart-uninorth
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From: Aaro Koskinen <aaro.koskinen@xxxxxx>
commit eda85d6ad490923152544fba0473798b6cc0edf6 upstream.
Check that the AGP aperture can be mapped. This follows a similar change
done for Radeon (commit 365048ff, drm/radeon: AGP memory is only I/O if
the aperture can be mapped by the CPU.).
The patch fixes the following error seen on G5 iMac:
nouveau E[ DRM] failed to create kernel channel, -12
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58806
Reviewed-by: Michel Dänzer <michel@xxxxxxxxxxx>
Signed-off-by: Aaro Koskinen <aaro.koskinen@xxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Cc: Weng Meiling <wengmeiling.weng@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_bo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -946,7 +946,7 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo
if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
mem->bus.offset = mem->start << PAGE_SHIFT;
mem->bus.base = dev_priv->gart_info.aper_base;
- mem->bus.is_iomem = true;
+ mem->bus.is_iomem = !dev->agp->cant_use_aperture;
}
#endif
break;
Patches currently in stable-queue which might be from aaro.koskinen@xxxxxx are
queue-3.4/drm-nouveau-fix-init-with-agpgart-uninorth.patch
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