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path: root/drivers/gpu/drm/nouveau/nvkm/engine/fifo
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/fifo')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
index 52aedd891e80..e4e68f6fb138 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
@@ -338,10 +338,17 @@ gk104_fifo_sched_reason[] = {
static void
gk104_fifo_intr_sched_ctxsw(struct gk104_fifo *fifo)
{
+ struct nvkm_device *device = fifo->base.engine.subdev.device;
unsigned long flags, engm = 0;
u32 engn;
+ /* We need to ACK the SCHED_ERROR here, and prevent it reasserting,
+ * as MMU_FAULT cannot be triggered while it's pending.
+ */
spin_lock_irqsave(&fifo->base.lock, flags);
+ nvkm_mask(device, 0x002140, 0x00000100, 0x00000000);
+ nvkm_wr32(device, 0x002100, 0x00000100);
+
for (engn = 0; engn < fifo->engine_nr; engn++) {
struct gk104_fifo_engine_status status;
@@ -355,6 +362,7 @@ gk104_fifo_intr_sched_ctxsw(struct gk104_fifo *fifo)
for_each_set_bit(engn, &engm, fifo->engine_nr)
gk104_fifo_recover_engn(fifo, engn);
+ nvkm_mask(device, 0x002140, 0x00000100, 0x00000100);
spin_unlock_irqrestore(&fifo->base.lock, flags);
}