Commit 7a5c23de authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nvc0/fifo: kick channels off during suspend 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent fe799114

drivers/gpu/drm/nouveau/nvc0_fifo.c

+16 −0
Original line number Diff line number Diff line
@@ -240,6 +240,22 @@ nvc0_fifo_load_context(struct nouveau_channel *chan) 
int

nvc0_fifo_unload_context(struct drm_device *dev)

{

	struct drm_nouveau_private *dev_priv = dev->dev_private;

	int i;



	for (i = 0; i < 128; i++) {

		if (!(nv_rd32(dev, 0x003004 + (i * 4)) & 1))

			continue;



		nv_mask(dev, 0x003004 + (i * 4), 0x00000001, 0x00000000);

		nv_wr32(dev, 0x002634, i);

		if (!nv_wait(dev, 0x002634, 0xffffffff, i)) {

			NV_INFO(dev, "PFIFO: kick ch %d failed: 0x%08x\n",

				i, nv_rd32(dev, 0x002634));

			return -EBUSY;

		}

	}



	return 0;

}