drm/nouveau/fifo/gk104-: ACK SCHED_ERROR before attempting CTXSW_TIMEOUT recovery

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2017-01-18 16:05:15 +10:00
parent 91b9d659ab
commit 03f16f5f27

View File

@ -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);
}