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authorAaro Koskinen <aaro.koskinen@iki.fi>2012-12-31 03:34:59 +0200
committerDave Airlie <airlied@redhat.com>2013-01-04 16:04:33 +1000
commiteda85d6ad490923152544fba0473798b6cc0edf6 (patch)
tree94f7755506c4da23b13334ec3d809d6474309dfa /drivers/gpu
parent57cdf82ce578959ec871899ad4461475148009e0 (diff)
drm/nouveau: fix init with agpgart-uninorth
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 Cc: stable@vger.kernel.org Reviewed-by: Michel Dänzer <michel@daenzer.net> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-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 5614c89148cb..69d7b1d0b9d6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -1276,7 +1276,7 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
if (drm->agp.stat == ENABLED) {
mem->bus.offset = mem->start << PAGE_SHIFT;
mem->bus.base = drm->agp.base;
- mem->bus.is_iomem = true;
+ mem->bus.is_iomem = !dev->agp->cant_use_aperture;
}
#endif
break;