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Commit d4c4cc83 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/mc: abstract interface to master intr registers 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 0a34fb31

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

+3 −0
Original line number Diff line number Diff line
@@ -10,6 +10,9 @@ struct nvkm_mc { 
	bool use_msi;

};



void nvkm_mc_intr_unarm(struct nvkm_mc *);

void nvkm_mc_intr_rearm(struct nvkm_mc *);

u32 nvkm_mc_intr_mask(struct nvkm_mc *);

void nvkm_mc_unk260(struct nvkm_mc *, u32 data);



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

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

+21 −11
Original line number Diff line number Diff line
@@ -32,13 +32,24 @@ nvkm_mc_unk260(struct nvkm_mc *mc, u32 data) 
		mc->func->unk260(mc, data);

}



static inline u32

void

nvkm_mc_intr_unarm(struct nvkm_mc *mc)

{

	return mc->func->intr_unarm(mc);

}



void

nvkm_mc_intr_rearm(struct nvkm_mc *mc)

{

	return mc->func->intr_rearm(mc);

}



u32

nvkm_mc_intr_mask(struct nvkm_mc *mc)

{

	struct nvkm_device *device = mc->subdev.device;

	u32 intr = nvkm_rd32(device, 0x000100);

	if (intr == 0xffffffff) /* likely fallen off the bus */

		intr = 0x00000000;

	u32 intr = mc->func->intr_mask(mc);

	if (WARN_ON_ONCE(intr == 0xffffffff))

		intr = 0; /* likely fallen off the bus */

	return intr;

}
@@ -52,8 +63,7 @@ nvkm_mc_intr(int irq, void *arg) 
	struct nvkm_subdev *unit;

	u32 intr;



	nvkm_wr32(device, 0x000140, 0x00000000);

	nvkm_rd32(device, 0x000140);

	nvkm_mc_intr_unarm(mc);

	intr = nvkm_mc_intr_mask(mc);

	if (mc->use_msi)

		mc->func->msi_rearm(mc);
@@ -74,14 +84,15 @@ nvkm_mc_intr(int irq, void *arg) 
			nvkm_error(subdev, "unknown intr %08x\n", stat);

	}



	nvkm_wr32(device, 0x000140, 0x00000001);

	nvkm_mc_intr_rearm(mc);

	return intr ? IRQ_HANDLED : IRQ_NONE;

}



static int

nvkm_mc_fini(struct nvkm_subdev *subdev, bool suspend)

{

	nvkm_wr32(subdev->device, 0x000140, 0x00000000);

	struct nvkm_mc *mc = nvkm_mc(subdev);

	nvkm_mc_intr_unarm(mc);

	return 0;

}
@@ -96,10 +107,9 @@ static int 
nvkm_mc_init(struct nvkm_subdev *subdev)

{

	struct nvkm_mc *mc = nvkm_mc(subdev);

	struct nvkm_device *device = mc->subdev.device;

	if (mc->func->init)

		mc->func->init(mc);

	nvkm_wr32(device, 0x000140, 0x00000001);

	nvkm_mc_intr_rearm(mc);

	return 0;

}

drivers/gpu/drm/nouveau/nvkm/subdev/mc/g94.c

+3 −0
Original line number Diff line number Diff line
@@ -27,6 +27,9 @@ static const struct nvkm_mc_func 
g94_mc = {

	.init = nv50_mc_init,

	.intr = nv50_mc_intr,

	.intr_unarm = nv04_mc_intr_unarm,

	.intr_rearm = nv04_mc_intr_rearm,

	.intr_mask = nv04_mc_intr_mask,

	.msi_rearm = nv40_mc_msi_rearm,

};

drivers/gpu/drm/nouveau/nvkm/subdev/mc/g98.c

+3 −0
Original line number Diff line number Diff line
@@ -48,6 +48,9 @@ static const struct nvkm_mc_func 
g98_mc = {

	.init = nv50_mc_init,

	.intr = g98_mc_intr,

	.intr_unarm = nv04_mc_intr_unarm,

	.intr_rearm = nv04_mc_intr_rearm,

	.intr_mask = nv04_mc_intr_mask,

	.msi_rearm = nv40_mc_msi_rearm,

};

drivers/gpu/drm/nouveau/nvkm/subdev/mc/gf100.c

+3 −0
Original line number Diff line number Diff line
@@ -64,6 +64,9 @@ static const struct nvkm_mc_func 
gf100_mc = {

	.init = nv50_mc_init,

	.intr = gf100_mc_intr,

	.intr_unarm = nv04_mc_intr_unarm,

	.intr_rearm = nv04_mc_intr_rearm,

	.intr_mask = nv04_mc_intr_mask,

	.msi_rearm = gf100_mc_msi_rearm,

	.unk260 = gf100_mc_unk260,

};