diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_fifo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_fifo.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_fifo.c b/drivers/gpu/drm/nouveau/nvc0_fifo.c index 55a4245c1a67..2bd0511511e4 100644 --- a/drivers/gpu/drm/nouveau/nvc0_fifo.c +++ b/drivers/gpu/drm/nouveau/nvc0_fifo.c @@ -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; } |