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Commit 66adbfb0 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/mc: support for temporarily masking interrupts from a specific device 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 6e09a578

drivers/gpu/drm/nouveau/include/nvkm/subdev/mc.h

+1 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ void nvkm_mc_reset(struct nvkm_device *, enum nvkm_devidx); 
void nvkm_mc_intr(struct nvkm_device *, bool *handled);

void nvkm_mc_intr_unarm(struct nvkm_device *);

void nvkm_mc_intr_rearm(struct nvkm_device *);

void nvkm_mc_intr_mask(struct nvkm_device *, enum nvkm_devidx, bool enable);

void nvkm_mc_unk260(struct nvkm_device *, u32 data);



int nv04_mc_new(struct nvkm_device *, int, struct nvkm_mc **);

drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c

+15 −0
Original line number Diff line number Diff line
@@ -34,6 +34,21 @@ nvkm_mc_unk260(struct nvkm_device *device, u32 data) 
		mc->func->unk260(mc, data);

}



void

nvkm_mc_intr_mask(struct nvkm_device *device, enum nvkm_devidx devidx, bool en)

{

	struct nvkm_mc *mc = device->mc;

	const struct nvkm_mc_map *map;

	if (likely(mc) && mc->func->intr_mask) {

		u32 mask = nvkm_top_intr_mask(device, devidx);

		for (map = mc->func->intr; !mask && map->stat; map++) {

			if (map->unit == devidx)

				mask = map->stat;

		}

		mc->func->intr_mask(mc, mask, en ? mask : 0);

	}

}



void

nvkm_mc_intr_unarm(struct nvkm_device *device)

{

drivers/gpu/drm/nouveau/nvkm/subdev/mc/priv.h

+2 −0
Original line number Diff line number Diff line
@@ -21,6 +21,8 @@ struct nvkm_mc_func { 
	void (*intr_unarm)(struct nvkm_mc *);

	/* enable reporting of interrupts to host */

	void (*intr_rearm)(struct nvkm_mc *);

	/* (un)mask delivery of specific interrupts */

	void (*intr_mask)(struct nvkm_mc *, u32 mask, u32 stat);

	/* retrieve pending interrupt mask (NV_PMC_INTR) */

	u32 (*intr_stat)(struct nvkm_mc *);

	const struct nvkm_mc_map *reset;