From b4c5fc4b853a1d508cbd3133f5d363037bfd5844 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Fri, 11 Mar 2016 13:09:28 +1000
Subject: [PATCH] drm/nouveau/fifo/gk104: submit NOP after all PBDMA_INTR_0,
not just DEVICE
Prevents the same interrupt from re-triggering forever.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
index a1b30133ae192..68acb36b3e6d1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
@@ -490,9 +490,10 @@ gk104_fifo_intr_pbdma_0(struct gk104_fifo *fifo, int unit)
if (nvkm_sw_mthd(device->sw, chid, subc, mthd, data))
show &= ~0x00800000;
}
- nvkm_wr32(device, 0x0400c0 + (unit * 0x2000), 0x80600008);
}
+ nvkm_wr32(device, 0x0400c0 + (unit * 0x2000), 0x80600008);
+
if (show) {
nvkm_snprintbf(msg, sizeof(msg), gk104_fifo_pbdma_intr_0, show);
chan = nvkm_fifo_chan_chid(&fifo->base, chid, &flags);
--
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