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authorLauri Peltonen <lpeltonen@nvidia.com>2015-02-26 07:16:48 +0300
committerBen Skeggs <bskeggs@redhat.com>2015-04-14 10:00:41 +0300
commitc6a7b026a3a80662d8f7bb6b4f7821329aa7111b (patch)
tree1e2ebd78ec13e32f994363f7c3f3deaf148b0527 /drivers/gpu
parent3d951c38006bd007e1b9a6f681691141ed600ea0 (diff)
downloadlinux-c6a7b026a3a80662d8f7bb6b4f7821329aa7111b.tar.xz
drm/nouveau/gr/gf100: Clear notify interrupt
Notify interrupt is only used for cyclestats. We can just clear it and avoid an "unknown stat" error that gets printed to dmesg otherwise. Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
index 9707870a58c9..86c9515018d0 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
@@ -1103,6 +1103,15 @@ gf100_gr_intr(struct nvkm_subdev *subdev)
engctx = nvkm_engctx_get(engine, inst);
chid = pfifo->chid(pfifo, engctx);
+ if (stat & 0x00000001) {
+ /*
+ * notifier interrupt, only needed for cyclestats
+ * can be safely ignored
+ */
+ nv_wr32(priv, 0x400100, 0x00000001);
+ stat &= ~0x00000001;
+ }
+
if (stat & 0x00000010) {
handle = nvkm_handle_get_class(engctx, class);
if (!handle || nv_call(handle->object, mthd, data)) {