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Commit 21e6de29 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/fifo: add an api for initiating channel recovery 



This will be used by callers outside of fifo interrupt handlers.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 13416077

drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c

+11 −0
Original line number Diff line number Diff line
@@ -31,6 +31,17 @@ 
#include <nvif/event.h>

#include <nvif/unpack.h>



void

nvkm_fifo_recover_chan(struct nvkm_fifo *fifo, int chid)

{

	unsigned long flags;

	if (WARN_ON(!fifo->func->recover_chan))

		return;

	spin_lock_irqsave(&fifo->lock, flags);

	fifo->func->recover_chan(fifo, chid);

	spin_unlock_irqrestore(&fifo->lock, flags);

}



void

nvkm_fifo_pause(struct nvkm_fifo *fifo, unsigned long *flags)

{

drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h

+2 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ int nvkm_fifo_ctor(const struct nvkm_fifo_func *, struct nvkm_device *, 
void nvkm_fifo_uevent(struct nvkm_fifo *);

void nvkm_fifo_cevent(struct nvkm_fifo *);

void nvkm_fifo_kevent(struct nvkm_fifo *, int chid);

void nvkm_fifo_recover_chan(struct nvkm_fifo *, int chid);



struct nvkm_fifo_chan_oclass;

struct nvkm_fifo_func {
@@ -20,6 +21,7 @@ struct nvkm_fifo_func { 
	void (*start)(struct nvkm_fifo *, unsigned long *);

	void (*uevent_init)(struct nvkm_fifo *);

	void (*uevent_fini)(struct nvkm_fifo *);

	void (*recover_chan)(struct nvkm_fifo *, int chid);

	int (*class_get)(struct nvkm_fifo *, int index,

			 const struct nvkm_fifo_chan_oclass **);

	const struct nvkm_fifo_chan_oclass *chan[];