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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/therm.h>28#include <subdev/timer.h>29 30static int31nv50_bus_hwsq_exec(struct nvkm_bus *bus, u32 *data, u32 size)32{33 struct nvkm_device *device = bus->subdev.device;34 int i;35 36 nvkm_mask(device, 0x001098, 0x00000008, 0x00000000);37 nvkm_wr32(device, 0x001304, 0x00000000);38 for (i = 0; i < size; i++)39 nvkm_wr32(device, 0x001400 + (i * 4), data[i]);40 nvkm_mask(device, 0x001098, 0x00000018, 0x00000018);41 nvkm_wr32(device, 0x00130c, 0x00000003);42 43 if (nvkm_msec(device, 2000,44 if (!(nvkm_rd32(device, 0x001308) & 0x00000100))45 break;46 ) < 0)47 return -ETIMEDOUT;48 49 return 0;50}51 52void53nv50_bus_intr(struct nvkm_bus *bus)54{55 struct nvkm_subdev *subdev = &bus->subdev;56 struct nvkm_device *device = subdev->device;57 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);58 59 if (stat & 0x00000008) {60 u32 addr = nvkm_rd32(device, 0x009084);61 u32 data = nvkm_rd32(device, 0x009088);62 63 nvkm_error_ratelimited(subdev, "MMIO %s of %08x FAULT at %06x\n",64 (addr & 0x00000002) ? "write" : "read", data,65 (addr & 0x00fffffc));66 67 stat &= ~0x00000008;68 nvkm_wr32(device, 0x001100, 0x00000008);69 }70 71 if (stat & 0x00010000) {72 struct nvkm_therm *therm = device->therm;73 if (therm)74 nvkm_subdev_intr(&therm->subdev);75 stat &= ~0x00010000;76 nvkm_wr32(device, 0x001100, 0x00010000);77 }78 79 if (stat) {80 nvkm_error(subdev, "intr %08x\n", stat);81 nvkm_mask(device, 0x001140, stat, 0);82 }83}84 85void86nv50_bus_init(struct nvkm_bus *bus)87{88 struct nvkm_device *device = bus->subdev.device;89 nvkm_wr32(device, 0x001100, 0xffffffff);90 nvkm_wr32(device, 0x001140, 0x00010008);91}92 93static const struct nvkm_bus_func94nv50_bus = {95 .init = nv50_bus_init,96 .intr = nv50_bus_intr,97 .hwsq_exec = nv50_bus_hwsq_exec,98 .hwsq_size = 64,99};100 101int102nv50_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,103 struct nvkm_bus **pbus)104{105 return nvkm_bus_new_(&nv50_bus, device, type, inst, pbus);106}107