diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/ibus/nvc0.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/ibus/nvc0.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/nvc0.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/nvc0.c new file mode 100644 index 000000000000..4e977ff27e44 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/nvc0.c @@ -0,0 +1,123 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ + +#include <subdev/ibus.h> + +struct nvc0_ibus_priv { + struct nouveau_ibus base; +}; + +static void +nvc0_ibus_intr_hub(struct nvc0_ibus_priv *priv, int i) +{ + u32 addr = nv_rd32(priv, 0x122120 + (i * 0x0400)); + u32 data = nv_rd32(priv, 0x122124 + (i * 0x0400)); + u32 stat = nv_rd32(priv, 0x122128 + (i * 0x0400)); + nv_error(priv, "HUB%d: 0x%06x 0x%08x (0x%08x)\n", i, addr, data, stat); + nv_mask(priv, 0x122128 + (i * 0x0400), 0x00000200, 0x00000000); +} + +static void +nvc0_ibus_intr_rop(struct nvc0_ibus_priv *priv, int i) +{ + u32 addr = nv_rd32(priv, 0x124120 + (i * 0x0400)); + u32 data = nv_rd32(priv, 0x124124 + (i * 0x0400)); + u32 stat = nv_rd32(priv, 0x124128 + (i * 0x0400)); + nv_error(priv, "ROP%d: 0x%06x 0x%08x (0x%08x)\n", i, addr, data, stat); + nv_mask(priv, 0x124128 + (i * 0x0400), 0x00000200, 0x00000000); +} + +static void +nvc0_ibus_intr_gpc(struct nvc0_ibus_priv *priv, int i) +{ + u32 addr = nv_rd32(priv, 0x128120 + (i * 0x0400)); + u32 data = nv_rd32(priv, 0x128124 + (i * 0x0400)); + u32 stat = nv_rd32(priv, 0x128128 + (i * 0x0400)); + nv_error(priv, "GPC%d: 0x%06x 0x%08x (0x%08x)\n", i, addr, data, stat); + nv_mask(priv, 0x128128 + (i * 0x0400), 0x00000200, 0x00000000); +} + +static void +nvc0_ibus_intr(struct nouveau_subdev *subdev) +{ + struct nvc0_ibus_priv *priv = (void *)subdev; + u32 intr0 = nv_rd32(priv, 0x121c58); + u32 intr1 = nv_rd32(priv, 0x121c5c); + u32 hubnr = nv_rd32(priv, 0x121c70); + u32 ropnr = nv_rd32(priv, 0x121c74); + u32 gpcnr = nv_rd32(priv, 0x121c78); + u32 i; + + for (i = 0; (intr0 & 0x0000ff00) && i < hubnr; i++) { + u32 stat = 0x00000100 << i; + if (intr0 & stat) { + nvc0_ibus_intr_hub(priv, i); + intr0 &= ~stat; + } + } + + for (i = 0; (intr0 & 0xffff0000) && i < ropnr; i++) { + u32 stat = 0x00010000 << i; + if (intr0 & stat) { + nvc0_ibus_intr_rop(priv, i); + intr0 &= ~stat; + } + } + + for (i = 0; intr1 && i < gpcnr; i++) { + u32 stat = 0x00000001 << i; + if (intr1 & stat) { + nvc0_ibus_intr_gpc(priv, i); + intr1 &= ~stat; + } + } +} + +static int +nvc0_ibus_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nvc0_ibus_priv *priv; + int ret; + + ret = nouveau_ibus_create(parent, engine, oclass, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + nv_subdev(priv)->intr = nvc0_ibus_intr; + return 0; +} + +struct nouveau_oclass +nvc0_ibus_oclass = { + .handle = NV_SUBDEV(IBUS, 0xc0), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nvc0_ibus_ctor, + .dtor = _nouveau_ibus_dtor, + .init = _nouveau_ibus_init, + .fini = _nouveau_ibus_fini, + }, +}; |