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>
This commit is contained in:
Родитель
57cdf82ce5
Коммит
eda85d6ad4
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@ -1276,7 +1276,7 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
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if (drm->agp.stat == ENABLED) {
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mem->bus.offset = mem->start << PAGE_SHIFT;
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mem->bus.base = drm->agp.base;
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mem->bus.is_iomem = true;
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mem->bus.is_iomem = !dev->agp->cant_use_aperture;
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}
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#endif
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break;
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