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| author | Tony Lindgren <tony@atomide.com> | 2010-02-17 14:08:58 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-02-17 14:08:58 -0800 |
| commit | 80c20d543d142ee54ec85259b77aaf0b83c32db5 (patch) | |
| tree | 364017b2c001939bbb645dcc20d565c1f71b13a8 /drivers/gpu/drm/nouveau/nv50_graph.c | |
| parent | d6a2d9b800276140abf352908abbd0c240890692 (diff) | |
| parent | b72c7d543589736d43da531566490dd31572f5ca (diff) | |
| download | kernel_replicant_linux-80c20d543d142ee54ec85259b77aaf0b83c32db5.tar.gz kernel_replicant_linux-80c20d543d142ee54ec85259b77aaf0b83c32db5.tar.bz2 kernel_replicant_linux-80c20d543d142ee54ec85259b77aaf0b83c32db5.zip | |
Merge branch 'omap-fixes-for-linus' into omap-for-linus
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_graph.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_graph.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_graph.c b/drivers/gpu/drm/nouveau/nv50_graph.c index 20319e59d368..6d504801b514 100644 --- a/drivers/gpu/drm/nouveau/nv50_graph.c +++ b/drivers/gpu/drm/nouveau/nv50_graph.c @@ -165,6 +165,12 @@ nv50_graph_channel(struct drm_device *dev) uint32_t inst; int i; + /* Be sure we're not in the middle of a context switch or bad things + * will happen, such as unloading the wrong pgraph context. + */ + if (!nv_wait(0x400300, 0x00000001, 0x00000000)) + NV_ERROR(dev, "Ctxprog is still running\n"); + inst = nv_rd32(dev, NV50_PGRAPH_CTXCTL_CUR); if (!(inst & NV50_PGRAPH_CTXCTL_CUR_LOADED)) return NULL; @@ -275,7 +281,7 @@ nv50_graph_load_context(struct nouveau_channel *chan) int nv50_graph_unload_context(struct drm_device *dev) { - uint32_t inst, fifo = nv_rd32(dev, 0x400500); + uint32_t inst; inst = nv_rd32(dev, NV50_PGRAPH_CTXCTL_CUR); if (!(inst & NV50_PGRAPH_CTXCTL_CUR_LOADED)) @@ -283,12 +289,10 @@ nv50_graph_unload_context(struct drm_device *dev) inst &= NV50_PGRAPH_CTXCTL_CUR_INSTANCE; nouveau_wait_for_idle(dev); - nv_wr32(dev, 0x400500, fifo & ~1); nv_wr32(dev, 0x400784, inst); nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) | 0x20); nv_wr32(dev, 0x400304, nv_rd32(dev, 0x400304) | 0x01); nouveau_wait_for_idle(dev); - nv_wr32(dev, 0x400500, fifo); nv_wr32(dev, NV50_PGRAPH_CTXCTL_CUR, inst); return 0; |