Commit 650e1203 authored by Francisco Jerez's avatar Francisco Jerez Committed by Ben Skeggs
Browse files

drm/nouveau: Disable AGP on PowerPC again.

Signed-off-by: default avatarFrancisco Jerez <>
Signed-off-by: default avatarBen Skeggs <>
parent 65b5f42e
......@@ -47,6 +47,18 @@ nouveau_agp_enabled(struct nouveau_drm *drm)
if (drm->agp.stat == UNKNOWN) {
if (!nouveau_agpmode)
return false;
#ifdef __powerpc__
/* Disable AGP by default on all PowerPC machines for
* now -- At least some UniNorth-2 AGP bridges are
* known to be broken: DMA from the host to the card
* works just fine, but writeback from the card to the
* host goes straight to memory untranslated bypassing
* the GATT somehow, making them quite painful to deal
* with...
if (nouveau_agpmode == -1)
return false;
return true;
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