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drm/nvc0/gr: fix TP init for transform feedback offset queries

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Without this, they return bytes written since the last update of
the offset, but we want the full offset.

Trace shows setting this on GPC[0]/TP[0] is enough.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Christoph Bumiller 2011-11-11 20:47:58 +01:00 committed by Ben Skeggs
parent 33dbc27f1a
commit ffe2dee490
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/nouveau/nvc0_graph.c
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@ -381,6 +381,8 @@ nvc0_graph_init_gpc_0(struct drm_device *dev)
u8 tpnr[GPC_MAX];
int i, gpc, tpc;
nv_wr32(dev, TP_UNIT(0, 0, 0x5c), 1); /* affects TFB offset queries */
/*
* TP ROP UNKVAL(magic_not_rop_nr)
* 450: 4/0/0/0 2 3