drm/nouveau: Disable AGP on PowerPC again. (650e1203) · Commits · e / devices / android_kernel_sony_msm8998

drivers/gpu/drm/nouveau/nouveau_agp.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -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;
		#endif
		return true;
		}