drm/nvc0/fifo: restore context table on resume

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nvc0_fifo.c b/drivers/gpu/drm/nouveau/nvc0_fifo.c
index 2bd0511..be4e483 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvc0_fifo.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fifo.c
@@ -240,7 +240,6 @@ 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++) {
@@ -325,6 +324,7 @@ nvc0_fifo_init(struct drm_device *dev)
 {
        struct drm_nouveau_private *dev_priv = dev->dev_private;
        struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
+       struct nouveau_channel *chan;
        struct nvc0_fifo_priv *priv;
        int ret, i;
 
@@ -367,6 +367,19 @@ nvc0_fifo_init(struct drm_device *dev)
        nv_wr32(dev, 0x002a00, 0xffffffff); /* clears PFIFO.INTR bit 30 */
        nv_wr32(dev, 0x002100, 0xffffffff);
        nv_wr32(dev, 0x002140, 0xbfffffff);
+
+       /* restore PFIFO context table */
+       for (i = 0; i < 128; i++) {
+               chan = dev_priv->channels.ptr[i];
+               if (!chan || !chan->fifo_priv)
+                       continue;
+
+               nv_wr32(dev, 0x003000 + (i * 8), 0xc0000000 |
+                                                (chan->ramin->vinst >> 12));
+               nv_wr32(dev, 0x003004 + (i * 8), 0x001f0001);
+       }
+       nvc0_fifo_playlist_update(dev);
+
        return 0;
 }