/* * 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 "priv.h" #include static void gf100_ibus_intr_hub(struct nvkm_subdev *ibus, int i) { struct nvkm_device *device = ibus->device; u32 addr = nvkm_rd32(device, 0x122120 + (i * 0x0400)); u32 data = nvkm_rd32(device, 0x122124 + (i * 0x0400)); u32 stat = nvkm_rd32(device, 0x122128 + (i * 0x0400)); nvkm_debug(ibus, "HUB%d: %06x %08x (%08x)\n", i, addr, data, stat); } static void gf100_ibus_intr_rop(struct nvkm_subdev *ibus, int i) { struct nvkm_device *device = ibus->device; u32 addr = nvkm_rd32(device, 0x124120 + (i * 0x0400)); u32 data = nvkm_rd32(device, 0x124124 + (i * 0x0400)); u32 stat = nvkm_rd32(device, 0x124128 + (i * 0x0400)); nvkm_debug(ibus, "ROP%d: %06x %08x (%08x)\n", i, addr, data, stat); } static void gf100_ibus_intr_gpc(struct nvkm_subdev *ibus, int i) { struct nvkm_device *device = ibus->device; u32 addr = nvkm_rd32(device, 0x128120 + (i * 0x0400)); u32 data = nvkm_rd32(device, 0x128124 + (i * 0x0400)); u32 stat = nvkm_rd32(device, 0x128128 + (i * 0x0400)); nvkm_debug(ibus, "GPC%d: %06x %08x (%08x)\n", i, addr, data, stat); } void gf100_ibus_intr(struct nvkm_subdev *ibus) { struct nvkm_device *device = ibus->device; u32 intr0 = nvkm_rd32(device, 0x121c58); u32 intr1 = nvkm_rd32(device, 0x121c5c); u32 hubnr = nvkm_rd32(device, 0x121c70); u32 ropnr = nvkm_rd32(device, 0x121c74); u32 gpcnr = nvkm_rd32(device, 0x121c78); u32 i; for (i = 0; (intr0 & 0x0000ff00) && i < hubnr; i++) { u32 stat = 0x00000100 << i; if (intr0 & stat) { gf100_ibus_intr_hub(ibus, i); intr0 &= ~stat; } } for (i = 0; (intr0 & 0xffff0000) && i < ropnr; i++) { u32 stat = 0x00010000 << i; if (intr0 & stat) { gf100_ibus_intr_rop(ibus, i); intr0 &= ~stat; } } for (i = 0; intr1 && i < gpcnr; i++) { u32 stat = 0x00000001 << i; if (intr1 & stat) { gf100_ibus_intr_gpc(ibus, i); intr1 &= ~stat; } } nvkm_mask(device, 0x121c4c, 0x0000003f, 0x00000002); nvkm_msec(device, 2000, if (!(nvkm_rd32(device, 0x121c4c) & 0x0000003f)) break; ); } static int gf100_ibus_init(struct nvkm_subdev *ibus) { struct nvkm_device *device = ibus->device; nvkm_mask(device, 0x122310, 0x0003ffff, 0x00000800); nvkm_wr32(device, 0x12232c, 0x00100064); nvkm_wr32(device, 0x122330, 0x00100064); nvkm_wr32(device, 0x122334, 0x00100064); nvkm_mask(device, 0x122348, 0x0003ffff, 0x00000100); return 0; } static const struct nvkm_subdev_func gf100_ibus = { .init = gf100_ibus_init, .intr = gf100_ibus_intr, }; int gf100_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(&gf100_ibus, device, index, ibus); return 0; }