1/* $NetBSD: nouveau_nvkm_subdev_mc_nv04.c,v 1.3 2021/12/18 23:45:40 riastradh Exp $ */ 2 3/* 4 * Copyright 2012 Red Hat Inc. 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: Ben Skeggs 25 */ 26#include <sys/cdefs.h> 27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_mc_nv04.c,v 1.3 2021/12/18 23:45:40 riastradh Exp $"); 28 29#include "priv.h" 30 31const struct nvkm_mc_map 32nv04_mc_reset[] = { 33 { 0x00001000, NVKM_ENGINE_GR }, 34 { 0x00000100, NVKM_ENGINE_FIFO }, 35 {} 36}; 37 38static const struct nvkm_mc_map 39nv04_mc_intr[] = { 40 { 0x01010000, NVKM_ENGINE_DISP }, 41 { 0x00001000, NVKM_ENGINE_GR }, 42 { 0x00000100, NVKM_ENGINE_FIFO }, 43 { 0x10000000, NVKM_SUBDEV_BUS }, 44 { 0x00100000, NVKM_SUBDEV_TIMER }, 45 {} 46}; 47 48void 49nv04_mc_intr_unarm(struct nvkm_mc *mc) 50{ 51 struct nvkm_device *device = mc->subdev.device; 52 nvkm_wr32(device, 0x000140, 0x00000000); 53 nvkm_rd32(device, 0x000140); 54} 55 56void 57nv04_mc_intr_rearm(struct nvkm_mc *mc) 58{ 59 struct nvkm_device *device = mc->subdev.device; 60 nvkm_wr32(device, 0x000140, 0x00000001); 61} 62 63u32 64nv04_mc_intr_stat(struct nvkm_mc *mc) 65{ 66 return nvkm_rd32(mc->subdev.device, 0x000100); 67} 68 69void 70nv04_mc_init(struct nvkm_mc *mc) 71{ 72 struct nvkm_device *device = mc->subdev.device; 73 nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */ 74 nvkm_wr32(device, 0x001850, 0x00000001); /* disable rom access */ 75} 76 77static const struct nvkm_mc_func 78nv04_mc = { 79 .init = nv04_mc_init, 80 .intr = nv04_mc_intr, 81 .intr_unarm = nv04_mc_intr_unarm, 82 .intr_rearm = nv04_mc_intr_rearm, 83 .intr_stat = nv04_mc_intr_stat, 84 .reset = nv04_mc_reset, 85}; 86 87int 88nv04_mc_new(struct nvkm_device *device, int index, struct nvkm_mc **pmc) 89{ 90 return nvkm_mc_new_(&nv04_mc, device, index, pmc); 91} 92