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drm/nouveau/fifo: add an api for initiating channel recovery
This will be used by callers outside of fifo interrupt handlers. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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@ -31,6 +31,17 @@
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#include <nvif/event.h>
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#include <nvif/unpack.h>
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void
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nvkm_fifo_recover_chan(struct nvkm_fifo *fifo, int chid)
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{
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unsigned long flags;
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if (WARN_ON(!fifo->func->recover_chan))
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return;
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spin_lock_irqsave(&fifo->lock, flags);
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fifo->func->recover_chan(fifo, chid);
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spin_unlock_irqrestore(&fifo->lock, flags);
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}
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void
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nvkm_fifo_pause(struct nvkm_fifo *fifo, unsigned long *flags)
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{
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@ -8,6 +8,7 @@ int nvkm_fifo_ctor(const struct nvkm_fifo_func *, struct nvkm_device *,
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void nvkm_fifo_uevent(struct nvkm_fifo *);
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void nvkm_fifo_cevent(struct nvkm_fifo *);
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void nvkm_fifo_kevent(struct nvkm_fifo *, int chid);
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void nvkm_fifo_recover_chan(struct nvkm_fifo *, int chid);
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struct nvkm_fifo_chan_oclass;
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struct nvkm_fifo_func {
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@ -20,6 +21,7 @@ struct nvkm_fifo_func {
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void (*start)(struct nvkm_fifo *, unsigned long *);
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void (*uevent_init)(struct nvkm_fifo *);
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void (*uevent_fini)(struct nvkm_fifo *);
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void (*recover_chan)(struct nvkm_fifo *, int chid);
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int (*class_get)(struct nvkm_fifo *, int index,
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const struct nvkm_fifo_chan_oclass **);
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const struct nvkm_fifo_chan_oclass *chan[];
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