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authorAaro Koskinen <aaro.koskinen@iki.fi>2012-12-31 03:34:59 +0200
committerBen Hutchings <ben@decadent.org.uk>2013-01-16 01:13:18 +0000
commit55fa88bba3378e444ab8c2fe21f6f7e0046355a8 (patch)
tree00dd8e49e0061c9e281d9f16a95483502ab82a17 /drivers
parent0af6a8d8e1de235c0fbcfda13ca3fe61be608811 (diff)
drm/nouveau: fix init with agpgart-uninorth
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@daenzer.net> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Dave Airlie <airlied@redhat.com> [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_bo.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index d5af0893a9e..2bb29c92239 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -940,7 +940,7 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
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;