nouveau_nvkm_subdev_bus_nv31.c revision 1.1
1/* $NetBSD: nouveau_nvkm_subdev_bus_nv31.c,v 1.1 2018/08/27 01:34:56 riastradh Exp $ */ 2 3/* 4 * Copyright 2012 Nouveau Community 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Martin Peres <martin.peres@labri.fr> 25 * Ben Skeggs 26 */ 27#include <sys/cdefs.h> 28__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_bus_nv31.c,v 1.1 2018/08/27 01:34:56 riastradh Exp $"); 29 30#include "priv.h" 31 32#include <subdev/gpio.h> 33#include <subdev/therm.h> 34 35static void 36nv31_bus_intr(struct nvkm_bus *bus) 37{ 38 struct nvkm_subdev *subdev = &bus->subdev; 39 struct nvkm_device *device = subdev->device; 40 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140); 41 u32 gpio = nvkm_rd32(device, 0x001104) & nvkm_rd32(device, 0x001144); 42 43 if (gpio) { 44 struct nvkm_gpio *gpio = device->gpio; 45 if (gpio) 46 nvkm_subdev_intr(&gpio->subdev); 47 } 48 49 if (stat & 0x00000008) { /* NV41- */ 50 u32 addr = nvkm_rd32(device, 0x009084); 51 u32 data = nvkm_rd32(device, 0x009088); 52 53 nvkm_error(subdev, "MMIO %s of %08x FAULT at %06x\n", 54 (addr & 0x00000002) ? "write" : "read", data, 55 (addr & 0x00fffffc)); 56 57 stat &= ~0x00000008; 58 nvkm_wr32(device, 0x001100, 0x00000008); 59 } 60 61 if (stat & 0x00070000) { 62 struct nvkm_therm *therm = device->therm; 63 if (therm) 64 nvkm_subdev_intr(&therm->subdev); 65 stat &= ~0x00070000; 66 nvkm_wr32(device, 0x001100, 0x00070000); 67 } 68 69 if (stat) { 70 nvkm_error(subdev, "intr %08x\n", stat); 71 nvkm_mask(device, 0x001140, stat, 0x00000000); 72 } 73} 74 75static void 76nv31_bus_init(struct nvkm_bus *bus) 77{ 78 struct nvkm_device *device = bus->subdev.device; 79 nvkm_wr32(device, 0x001100, 0xffffffff); 80 nvkm_wr32(device, 0x001140, 0x00070008); 81} 82 83static const struct nvkm_bus_func 84nv31_bus = { 85 .init = nv31_bus_init, 86 .intr = nv31_bus_intr, 87}; 88 89int 90nv31_bus_new(struct nvkm_device *device, int index, struct nvkm_bus **pbus) 91{ 92 return nvkm_bus_new_(&nv31_bus, device, index, pbus); 93} 94