diff options
| author | Ben Skeggs <skeggsb@gmail.com> | 2007-08-22 13:23:49 +1000 |
|---|---|---|
| committer | Ben Skeggs <skeggsb@gmail.com> | 2007-08-22 13:23:49 +1000 |
| commit | 11c46afe7599cf3cefd30a7e55325a1a1aa8e5ba (patch) | |
| tree | 4d73b37a70dc29550bb0862c02b2d22242b8af23 /shared-core/nv40_graph.c | |
| parent | a654c0341a7892307522ed6e7f4518cc7e28a99e (diff) | |
nouveau/nv40: Preserve other bits in 0x400304/0x400310 like NVIDIA do.
Diffstat (limited to 'shared-core/nv40_graph.c')
| -rw-r--r-- | shared-core/nv40_graph.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/shared-core/nv40_graph.c b/shared-core/nv40_graph.c index 25ee5c77..26237c7d 100644 --- a/shared-core/nv40_graph.c +++ b/shared-core/nv40_graph.c @@ -1293,20 +1293,26 @@ static int nv40_graph_transfer_context(struct drm_device *dev, uint32_t inst, int save) { struct drm_nouveau_private *dev_priv = dev->dev_private; - uint32_t old_cp, tv = 1000; + uint32_t old_cp, tv = 1000, tmp; int i; old_cp = NV_READ(NV20_PGRAPH_CHANNEL_CTX_POINTER); NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_POINTER, inst); - NV_WRITE(NV40_PGRAPH_CTXCTL_0310, - save ? NV40_PGRAPH_CTXCTL_0310_XFER_SAVE : - NV40_PGRAPH_CTXCTL_0310_XFER_LOAD); - NV_WRITE(NV40_PGRAPH_CTXCTL_0304, NV40_PGRAPH_CTXCTL_0304_XFER_CTX); + + tmp = NV_READ(NV40_PGRAPH_CTXCTL_0310); + tmp |= save ? NV40_PGRAPH_CTXCTL_0310_XFER_SAVE : + NV40_PGRAPH_CTXCTL_0310_XFER_LOAD; + NV_WRITE(NV40_PGRAPH_CTXCTL_0310, tmp); + + tmp = NV_READ(NV40_PGRAPH_CTXCTL_0304); + tmp |= NV40_PGRAPH_CTXCTL_0304_XFER_CTX; + NV_WRITE(NV40_PGRAPH_CTXCTL_0304, tmp); for (i = 0; i < tv; i++) { if (NV_READ(NV40_PGRAPH_CTXCTL_030C) == 0) break; } + NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_POINTER, old_cp); if (i == tv) { |