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authorAlexandre Courbot <acourbot@nvidia.com>2016-03-01 17:39:00 +0900
committerBen Skeggs <bskeggs@redhat.com>2016-03-14 10:13:31 +1000
commitab08f38cacd47168db1d568ae0a8249105e0cc06 (patch)
treeee5abe3ef6d3c5210c83a766388dba5452b24bf6 /drivers/gpu/drm/nouveau/nvkm/subdev/ltc
parentdrm/nouveau/fifo/gk104: take runlist target into account (diff)
downloadlinux-dev-ab08f38cacd47168db1d568ae0a8249105e0cc06.tar.xz
linux-dev-ab08f38cacd47168db1d568ae0a8249105e0cc06.zip
drm/nouveau/ltc/gf100: use more reasonable timeout value
LTC operations timeout was set to 2ms, which may be too low for devices that run at very low clocks (e.g. GM20B) and trigger timeout messages. Set the timeout to the default 2s. Also remove the redundant error messages since nvkm_wait_msec() will already display a warning. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/ltc')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c
index fb0de83da13c..c9eb677967a8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c
@@ -129,9 +129,7 @@ gf100_ltc_invalidate(struct nvkm_ltc *ltc)
s64 taken;
nvkm_wr32(device, 0x70004, 0x00000001);
- taken = nvkm_wait_msec(device, 2, 0x70004, 0x00000003, 0x00000000);
- if (taken < 0)
- nvkm_warn(&ltc->subdev, "LTC invalidate timeout\n");
+ taken = nvkm_wait_msec(device, 2000, 0x70004, 0x00000003, 0x00000000);
if (taken > 0)
nvkm_debug(&ltc->subdev, "LTC invalidate took %lld ns\n", taken);
@@ -144,9 +142,7 @@ gf100_ltc_flush(struct nvkm_ltc *ltc)
s64 taken;
nvkm_wr32(device, 0x70010, 0x00000001);
- taken = nvkm_wait_msec(device, 2, 0x70010, 0x00000003, 0x00000000);
- if (taken < 0)
- nvkm_warn(&ltc->subdev, "LTC flush timeout\n");
+ taken = nvkm_wait_msec(device, 2000, 0x70010, 0x00000003, 0x00000000);
if (taken > 0)
nvkm_debug(&ltc->subdev, "LTC flush took %lld ns\n", taken);