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path: root/drivers/gpu/drm/nouveau/nv50_evo.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_evo.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv50_evo.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_evo.c b/drivers/gpu/drm/nouveau/nv50_evo.c
index 9703f759b717..eea96205fca2 100644
--- a/drivers/gpu/drm/nouveau/nv50_evo.c
+++ b/drivers/gpu/drm/nouveau/nv50_evo.c
@@ -203,6 +203,7 @@ nv50_evo_destroy(struct drm_device *dev)
{
struct nv50_display *disp = nv50_display(dev);
+ nouveau_gpuobj_ref(NULL, &disp->ntfy);
nv50_evo_channel_del(&disp->master);
}
@@ -251,6 +252,25 @@ nv50_evo_create(struct drm_device *dev)
if (ret)
goto err;
+ /* not sure exactly what this is..
+ *
+ * the first dword of the structure is used by nvidia to wait on
+ * full completion of an EVO "update" command.
+ *
+ * method 0x8c on the master evo channel will fill a lot more of
+ * this structure with some undefined info
+ */
+ ret = nouveau_gpuobj_new(dev, disp->master, 0x1000, 0,
+ NVOBJ_FLAG_ZERO_ALLOC, &disp->ntfy);
+ if (ret)
+ goto err;
+
+ ret = nv50_evo_dmaobj_new(disp->master, 0x3d, NvEvoSync, 0, 0x19,
+ disp->ntfy->vinst, disp->ntfy->vinst +
+ disp->ntfy->size, 0x00010000);
+ if (ret)
+ goto err;
+
/* create some default objects for the scanout memtypes we support */
if (dev_priv->card_type >= NV_C0) {
ret = nv50_evo_dmaobj_new(evo, 0x3d, NvEvoFB32, 0xfe, 0x19,