drm/nvc0/fifo: kick channels off during suspend (7a5c23de) · Commits · e / devices / android_kernel_teracube_2e

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;
		}