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gr/gf100: Clear notify interrupt

PATCH New Alexandre Courbot 1 participant 1 message Feb 26, 2015 Tegra architecture support

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Alexandre Courbot

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PATCH 1/1 gr/gf100: Clear notify interrupt

From: Lauri Peltonen <[email protected]>

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 <[email protected]>
Signed-off-by Alexandre Courbot <[email protected]>
---
 drm/nouveau/nvkm/engine/gr/gf100.c | 9 +++++++++
 1 file changed, 9 insertions(+)
drm/nouveau/nvkm/engine/gr/gf100.c +9 -0
index 34b6d4baea16..15620c716195 100644
@@ -1108,6 +1108,15 @@ 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)) {
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2.3.0

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