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1/*2 * Copyright 2012 Nouveau Community3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Martin Peres <martin.peres@labri.fr>23 * Ben Skeggs24 */25#include "priv.h"26 27#include <subdev/gpio.h>28#include <subdev/therm.h>29 30static void31nv31_bus_intr(struct nvkm_bus *bus)32{33 struct nvkm_subdev *subdev = &bus->subdev;34 struct nvkm_device *device = subdev->device;35 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);36 u32 gpio = nvkm_rd32(device, 0x001104) & nvkm_rd32(device, 0x001144);37 38 if (gpio) {39 struct nvkm_gpio *gpio = device->gpio;40 if (gpio)41 nvkm_subdev_intr(&gpio->subdev);42 }43 44 if (stat & 0x00000008) { /* NV41- */45 u32 addr = nvkm_rd32(device, 0x009084);46 u32 data = nvkm_rd32(device, 0x009088);47 48 nvkm_error_ratelimited(subdev, "MMIO %s of %08x FAULT at %06x\n",49 (addr & 0x00000002) ? "write" : "read", data,50 (addr & 0x00fffffc));51 52 stat &= ~0x00000008;53 nvkm_wr32(device, 0x001100, 0x00000008);54 }55 56 if (stat & 0x00070000) {57 struct nvkm_therm *therm = device->therm;58 if (therm)59 nvkm_subdev_intr(&therm->subdev);60 stat &= ~0x00070000;61 nvkm_wr32(device, 0x001100, 0x00070000);62 }63 64 if (stat) {65 nvkm_error(subdev, "intr %08x\n", stat);66 nvkm_mask(device, 0x001140, stat, 0x00000000);67 }68}69 70static void71nv31_bus_init(struct nvkm_bus *bus)72{73 struct nvkm_device *device = bus->subdev.device;74 nvkm_wr32(device, 0x001100, 0xffffffff);75 nvkm_wr32(device, 0x001140, 0x00070008);76}77 78static const struct nvkm_bus_func79nv31_bus = {80 .init = nv31_bus_init,81 .intr = nv31_bus_intr,82};83 84int85nv31_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,86 struct nvkm_bus **pbus)87{88 return nvkm_bus_new_(&nv31_bus, device, type, inst, pbus);89}90