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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/gsp.h>28 29static void30gf100_bus_intr(struct nvkm_bus *bus)31{32 struct nvkm_subdev *subdev = &bus->subdev;33 struct nvkm_device *device = subdev->device;34 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);35 36 if (stat & 0x0000000e) {37 u32 addr = nvkm_rd32(device, 0x009084);38 u32 data = nvkm_rd32(device, 0x009088);39 40 nvkm_error_ratelimited(subdev,41 "MMIO %s of %08x FAULT at %06x [ %s%s%s]\n",42 (addr & 0x00000002) ? "write" : "read", data,43 (addr & 0x00fffffc),44 (stat & 0x00000002) ? "!ENGINE " : "",45 (stat & 0x00000004) ? "PRIVRING " : "",46 (stat & 0x00000008) ? "TIMEOUT " : "");47 48 nvkm_wr32(device, 0x009084, 0x00000000);49 nvkm_wr32(device, 0x001100, (stat & 0x0000000e));50 stat &= ~0x0000000e;51 }52 53 if (stat) {54 nvkm_error(subdev, "intr %08x\n", stat);55 nvkm_mask(device, 0x001140, stat, 0x00000000);56 }57}58 59static void60gf100_bus_init(struct nvkm_bus *bus)61{62 struct nvkm_device *device = bus->subdev.device;63 nvkm_wr32(device, 0x001100, 0xffffffff);64 nvkm_wr32(device, 0x001140, 0x0000000e);65}66 67static const struct nvkm_bus_func68gf100_bus = {69 .init = gf100_bus_init,70 .intr = gf100_bus_intr,71};72 73int74gf100_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,75 struct nvkm_bus **pbus)76{77 if (nvkm_gsp_rm(device->gsp))78 return -ENODEV;79 80 return nvkm_bus_new_(&gf100_bus, device, type, inst, pbus);81}82