Commit 112d20ad authored Jul 10, 2010 by Francisco Jerez Committed by Ben Skeggs Jul 13, 2010

drm/nouveau: Disable PROM access on init.



On older cards (<nv17) scanout gets blocked when the ROM is being
accessed. PROM access usually comes out enabled from suspend, switch
it off.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

parent 77144554

drivers/gpu/drm/nouveau/nv04_mc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -11,6 +11,10 @@ nv04_mc_init(struct drm_device *dev)
		*/

		nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);

		/* Disable PROM access. */
		nv_wr32(dev, NV_PBUS_PCI_NV_20, NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);

		return 0;
		}