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Commit 17041c7e authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/core: add engine method to assist in determining chsw direction 



FIFO gives us load/save/switch status, and we need to be able to determine
which direction a "switch" is failing during channel recovery.

In order to do this, we apparently need to query the engine itself.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 84cd0a55

drivers/gpu/drm/nouveau/include/nvkm/core/engine.h

+2 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ struct nvkm_engine_func { 
	int (*fini)(struct nvkm_engine *, bool suspend);

	void (*intr)(struct nvkm_engine *);

	void (*tile)(struct nvkm_engine *, int region, struct nvkm_fb_tile *);

	bool (*chsw_load)(struct nvkm_engine *);



	struct {

		int (*sclass)(struct nvkm_oclass *, int index,
@@ -44,4 +45,5 @@ int nvkm_engine_new_(const struct nvkm_engine_func *, struct nvkm_device *, 
struct nvkm_engine *nvkm_engine_ref(struct nvkm_engine *);

void nvkm_engine_unref(struct nvkm_engine **);

void nvkm_engine_tile(struct nvkm_engine *, int region);

bool nvkm_engine_chsw_load(struct nvkm_engine *);

#endif

drivers/gpu/drm/nouveau/nvkm/core/engine.c

+8 −0
Original line number Diff line number Diff line
@@ -27,6 +27,14 @@ 


#include <subdev/fb.h>



bool

nvkm_engine_chsw_load(struct nvkm_engine *engine)

{

	if (engine->func->chsw_load)

		return engine->func->chsw_load(engine);

	return false;

}



void

nvkm_engine_unref(struct nvkm_engine **pengine)

{