nouveau_nvkm_subdev_bus_nv50.c revision 1.2
1/* $NetBSD: nouveau_nvkm_subdev_bus_nv50.c,v 1.2 2018/08/27 04:58:33 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_nv50.c,v 1.2 2018/08/27 04:58:33 riastradh Exp $"); 29 30#include "priv.h" 31 32#include <subdev/therm.h> 33#include <subdev/timer.h> 34 35static int 36nv50_bus_hwsq_exec(struct nvkm_bus *bus, u32 *data, u32 size) 37{ 38 struct nvkm_device *device = bus->subdev.device; 39 int i; 40 41 nvkm_mask(device, 0x001098, 0x00000008, 0x00000000); 42 nvkm_wr32(device, 0x001304, 0x00000000); 43 for (i = 0; i < size; i++) 44 nvkm_wr32(device, 0x001400 + (i * 4), data[i]); 45 nvkm_mask(device, 0x001098, 0x00000018, 0x00000018); 46 nvkm_wr32(device, 0x00130c, 0x00000003); 47 48 if (nvkm_msec(device, 2000, 49 if (!(nvkm_rd32(device, 0x001308) & 0x00000100)) 50 break; 51 ) < 0) 52 return -ETIMEDOUT; 53 54 return 0; 55} 56 57void 58nv50_bus_intr(struct nvkm_bus *bus) 59{ 60 struct nvkm_subdev *subdev = &bus->subdev; 61 struct nvkm_device *device = subdev->device; 62 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140); 63 64 if (stat & 0x00000008) { 65 u32 addr = nvkm_rd32(device, 0x009084); 66 u32 data = nvkm_rd32(device, 0x009088); 67 68 nvkm_error(subdev, "MMIO %s of %08x FAULT at %06x\n", 69 (addr & 0x00000002) ? "write" : "read", data, 70 (addr & 0x00fffffc)); 71 72 stat &= ~0x00000008; 73 nvkm_wr32(device, 0x001100, 0x00000008); 74 } 75 76 if (stat & 0x00010000) { 77 struct nvkm_therm *therm = device->therm; 78 if (therm) 79 nvkm_subdev_intr(&therm->subdev); 80 stat &= ~0x00010000; 81 nvkm_wr32(device, 0x001100, 0x00010000); 82 } 83 84 if (stat) { 85 nvkm_error(subdev, "intr %08x\n", stat); 86 nvkm_mask(device, 0x001140, stat, 0); 87 } 88} 89 90void 91nv50_bus_init(struct nvkm_bus *bus) 92{ 93 struct nvkm_device *device = bus->subdev.device; 94 nvkm_wr32(device, 0x001100, 0xffffffff); 95 nvkm_wr32(device, 0x001140, 0x00010008); 96} 97 98static const struct nvkm_bus_func 99nv50_bus = { 100 .init = nv50_bus_init, 101 .intr = nv50_bus_intr, 102 .hwsq_exec = nv50_bus_hwsq_exec, 103 .hwsq_size = 64, 104}; 105 106int 107nv50_bus_new(struct nvkm_device *device, int index, struct nvkm_bus **pbus) 108{ 109 return nvkm_bus_new_(&nv50_bus, device, index, pbus); 110} 111