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authorChristoph Bumiller <e0425955@student.tuwien.ac.at>2011-11-11 20:47:58 +0100
committerBen Skeggs <bskeggs@redhat.com>2011-11-30 14:40:16 +0100
commitffe2dee49023c2a47ef7e177ceb22ec6bcaecc11 (patch)
treeb10f771344b8af076b6be89eae2caeb55e55a84f /drivers/gpu
parentdrm/nouveau: add dumb ioctl support (diff)
downloadlinux-ffe2dee49023c2a47ef7e177ceb22ec6bcaecc11.tar.xz
linux-ffe2dee49023c2a47ef7e177ceb22ec6bcaecc11.zip
drm/nvc0/gr: fix TP init for transform feedback offset queries
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>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nvc0_graph.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_graph.c b/drivers/gpu/drm/nouveau/nvc0_graph.c
index a74e501afd25..ecfafd70cf0e 100644
--- a/drivers/gpu/drm/nouveau/nvc0_graph.c
+++ b/drivers/gpu/drm/nouveau/nvc0_graph.c
@@ -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