diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2010-12-31 03:10:49 +0100 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-12-31 03:11:50 +0100 |
| commit | ec9c0883ea3aa90d6c6d6b16a64d0986f40baff0 (patch) | |
| tree | 1f325cb3da686587cfc927386042bdd939867b36 | |
| parent | drm/nvc0: reserve only subc 0 for kernel use (diff) | |
| download | linux-ec9c0883ea3aa90d6c6d6b16a64d0986f40baff0.tar.xz linux-ec9c0883ea3aa90d6c6d6b16a64d0986f40baff0.zip | |
drm/nvc0/pfifo: support for chipsets with only one PSUBFIFO (0xc1)
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_fifo.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_fifo.c b/drivers/gpu/drm/nouveau/nvc0_fifo.c index 82a4ded5dae8..e6f92c541dba 100644 --- a/drivers/gpu/drm/nouveau/nvc0_fifo.c +++ b/drivers/gpu/drm/nouveau/nvc0_fifo.c @@ -33,6 +33,7 @@ struct nvc0_fifo_priv { struct nouveau_gpuobj *playlist[2]; int cur_playlist; struct nouveau_vma user_vma; + int spoon_nr; }; struct nvc0_fifo_chan { @@ -324,13 +325,18 @@ nvc0_fifo_init(struct drm_device *dev) nv_wr32(dev, 0x000204, 0xffffffff); nv_wr32(dev, 0x002204, 0xffffffff); + priv->spoon_nr = hweight32(nv_rd32(dev, 0x002204)); + NV_DEBUG(dev, "PFIFO: %d subfifo(s)\n", priv->spoon_nr); + /* assign engines to subfifos */ - nv_wr32(dev, 0x002208, ~(1 << 0)); /* PGRAPH */ - nv_wr32(dev, 0x00220c, ~(1 << 1)); /* PVP */ - nv_wr32(dev, 0x002210, ~(1 << 1)); /* PPP */ - nv_wr32(dev, 0x002214, ~(1 << 1)); /* PBSP */ - nv_wr32(dev, 0x002218, ~(1 << 2)); /* PCE0 */ - nv_wr32(dev, 0x00221c, ~(1 << 1)); /* PCE1 */ + if (priv->spoon_nr >= 3) { + nv_wr32(dev, 0x002208, ~(1 << 0)); /* PGRAPH */ + nv_wr32(dev, 0x00220c, ~(1 << 1)); /* PVP */ + nv_wr32(dev, 0x002210, ~(1 << 1)); /* PPP */ + nv_wr32(dev, 0x002214, ~(1 << 1)); /* PBSP */ + nv_wr32(dev, 0x002218, ~(1 << 2)); /* PCE0 */ + nv_wr32(dev, 0x00221c, ~(1 << 1)); /* PCE1 */ + } /* PSUBFIFO[n] */ for (i = 0; i < 3; i++) { |