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* [RESEND PATCH] drm/nouveau: fix init with agpgart-uninorth
@ 2012-12-31  1:34 Aaro Koskinen
  2013-01-01  1:21 ` Marcin Slusarz
  0 siblings, 1 reply; 3+ messages in thread
From: Aaro Koskinen @ 2012-12-31  1:34 UTC (permalink / raw)
  To: David Airlie, dri-devel, linux-kernel; +Cc: Aaro Koskinen

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

Reviewed-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
---
 drivers/gpu/drm/nouveau/nouveau_bo.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 5614c89..69d7b1d 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;
-- 
1.7.10.4


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Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2012-12-31  1:34 [RESEND PATCH] drm/nouveau: fix init with agpgart-uninorth Aaro Koskinen
2013-01-01  1:21 ` Marcin Slusarz
2013-01-04  6:11   ` Dave Airlie

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