diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gk20a.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gk20a.c | 93 |
1 files changed, 36 insertions, 57 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gk20a.c index 24dcdfb58..3484079e8 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gk20a.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gk20a.c @@ -22,89 +22,68 @@ #include <subdev/ibus.h> #include <subdev/timer.h> -struct gk20a_ibus_priv { - struct nvkm_ibus base; -}; - static void -gk20a_ibus_init_priv_ring(struct gk20a_ibus_priv *priv) +gk20a_ibus_init_ibus_ring(struct nvkm_subdev *ibus) { - nv_mask(priv, 0x137250, 0x3f, 0); + struct nvkm_device *device = ibus->device; + nvkm_mask(device, 0x137250, 0x3f, 0); - nv_mask(priv, 0x000200, 0x20, 0); + nvkm_mask(device, 0x000200, 0x20, 0); usleep_range(20, 30); - nv_mask(priv, 0x000200, 0x20, 0x20); + nvkm_mask(device, 0x000200, 0x20, 0x20); - nv_wr32(priv, 0x12004c, 0x4); - nv_wr32(priv, 0x122204, 0x2); - nv_rd32(priv, 0x122204); + nvkm_wr32(device, 0x12004c, 0x4); + nvkm_wr32(device, 0x122204, 0x2); + nvkm_rd32(device, 0x122204); /* * Bug: increase clock timeout to avoid operation failure at high * gpcclk rate. */ - nv_wr32(priv, 0x122354, 0x800); - nv_wr32(priv, 0x128328, 0x800); - nv_wr32(priv, 0x124320, 0x800); + nvkm_wr32(device, 0x122354, 0x800); + nvkm_wr32(device, 0x128328, 0x800); + nvkm_wr32(device, 0x124320, 0x800); } static void -gk20a_ibus_intr(struct nvkm_subdev *subdev) +gk20a_ibus_intr(struct nvkm_subdev *ibus) { - struct gk20a_ibus_priv *priv = (void *)subdev; - u32 status0 = nv_rd32(priv, 0x120058); + struct nvkm_device *device = ibus->device; + u32 status0 = nvkm_rd32(device, 0x120058); if (status0 & 0x7) { - nv_debug(priv, "resetting priv ring\n"); - gk20a_ibus_init_priv_ring(priv); + nvkm_debug(ibus, "resetting ibus ring\n"); + gk20a_ibus_init_ibus_ring(ibus); } /* Acknowledge interrupt */ - nv_mask(priv, 0x12004c, 0x2, 0x2); - - if (!nv_wait(subdev, 0x12004c, 0x3f, 0x00)) - nv_warn(priv, "timeout waiting for ringmaster ack\n"); + nvkm_mask(device, 0x12004c, 0x2, 0x2); + nvkm_msec(device, 2000, + if (!(nvkm_rd32(device, 0x12004c) & 0x0000003f)) + break; + ); } static int -gk20a_ibus_init(struct nvkm_object *object) +gk20a_ibus_init(struct nvkm_subdev *ibus) { - struct gk20a_ibus_priv *priv = (void *)object; - int ret; - - ret = _nvkm_ibus_init(object); - if (ret) - return ret; - - gk20a_ibus_init_priv_ring(priv); - + gk20a_ibus_init_ibus_ring(ibus); return 0; } -static int -gk20a_ibus_ctor(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, void *data, u32 size, - struct nvkm_object **pobject) -{ - struct gk20a_ibus_priv *priv; - int ret; - - ret = nvkm_ibus_create(parent, engine, oclass, &priv); - *pobject = nv_object(priv); - if (ret) - return ret; +static const struct nvkm_subdev_func +gk20a_ibus = { + .init = gk20a_ibus_init, + .intr = gk20a_ibus_intr, +}; - nv_subdev(priv)->intr = gk20a_ibus_intr; +int +gk20a_ibus_new(struct nvkm_device *device, int index, + struct nvkm_subdev **pibus) +{ + struct nvkm_subdev *ibus; + if (!(ibus = *pibus = kzalloc(sizeof(*ibus), GFP_KERNEL))) + return -ENOMEM; + nvkm_subdev_ctor(&gk20a_ibus, device, index, 0, ibus); return 0; } - -struct nvkm_oclass -gk20a_ibus_oclass = { - .handle = NV_SUBDEV(IBUS, 0xea), - .ofuncs = &(struct nvkm_ofuncs) { - .ctor = gk20a_ibus_ctor, - .dtor = _nvkm_ibus_dtor, - .init = gk20a_ibus_init, - .fini = _nvkm_ibus_fini, - }, -}; |