1/* $NetBSD: nouveau_nvkm_subdev_top_gk104.c,v 1.2 2021/12/18 23:45:42 riastradh Exp $ */ 2 3/* 4 * Copyright 2016 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 <bskeggs@redhat.com> 25 */ 26#include <sys/cdefs.h> 27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_top_gk104.c,v 1.2 2021/12/18 23:45:42 riastradh Exp $"); 28 29#include "priv.h" 30 31static int 32gk104_top_oneinit(struct nvkm_top *top) 33{ 34 struct nvkm_subdev *subdev = &top->subdev; 35 struct nvkm_device *device = subdev->device; 36 struct nvkm_top_device *info = NULL; 37 u32 data, type, inst; 38 int i; 39 40 for (i = 0; i < 64; i++) { 41 if (!info) { 42 if (!(info = nvkm_top_device_new(top))) 43 return -ENOMEM; 44 type = ~0; 45 inst = 0; 46 } 47 48 data = nvkm_rd32(device, 0x022700 + (i * 0x04)); 49 nvkm_trace(subdev, "%02x: %08x\n", i, data); 50 switch (data & 0x00000003) { 51 case 0x00000000: /* NOT_VALID */ 52 continue; 53 case 0x00000001: /* DATA */ 54 inst = (data & 0x3c000000) >> 26; 55 info->addr = (data & 0x00fff000); 56 if (data & 0x00000004) 57 info->fault = (data & 0x000003f8) >> 3; 58 break; 59 case 0x00000002: /* ENUM */ 60 if (data & 0x00000020) 61 info->engine = (data & 0x3c000000) >> 26; 62 if (data & 0x00000010) 63 info->runlist = (data & 0x01e00000) >> 21; 64 if (data & 0x00000008) 65 info->intr = (data & 0x000f8000) >> 15; 66 if (data & 0x00000004) 67 info->reset = (data & 0x00003e00) >> 9; 68 break; 69 case 0x00000003: /* ENGINE_TYPE */ 70 type = (data & 0x7ffffffc) >> 2; 71 break; 72 } 73 74 if (data & 0x80000000) 75 continue; 76 77 /* Translate engine type to NVKM engine identifier. */ 78#define A_(A) if (inst == 0) info->index = NVKM_ENGINE_##A 79#define B_(A) if (inst + NVKM_ENGINE_##A##0 < NVKM_ENGINE_##A##_LAST + 1) \ 80 info->index = NVKM_ENGINE_##A##0 + inst 81#define C_(A) if (inst == 0) info->index = NVKM_SUBDEV_##A 82 switch (type) { 83 case 0x00000000: A_(GR ); break; 84 case 0x00000001: A_(CE0 ); break; 85 case 0x00000002: A_(CE1 ); break; 86 case 0x00000003: A_(CE2 ); break; 87 case 0x00000008: A_(MSPDEC); break; 88 case 0x00000009: A_(MSPPP ); break; 89 case 0x0000000a: A_(MSVLD ); break; 90 case 0x0000000b: A_(MSENC ); break; 91 case 0x0000000c: A_(VIC ); break; 92 case 0x0000000d: A_(SEC2 ); break; 93 case 0x0000000e: B_(NVENC ); break; 94 case 0x0000000f: A_(NVENC1); break; 95 case 0x00000010: B_(NVDEC ); break; 96 case 0x00000013: B_(CE ); break; 97 case 0x00000014: C_(GSP ); break; 98 break; 99 default: 100 break; 101 } 102 103 nvkm_debug(subdev, "%02x.%d (%8s): addr %06x fault %2d " 104 "engine %2d runlist %2d intr %2d " 105 "reset %2d\n", type, inst, 106 info->index == NVKM_SUBDEV_NR ? NULL : 107 nvkm_subdev_name[info->index], 108 info->addr, info->fault, info->engine, info->runlist, 109 info->intr, info->reset); 110 info = NULL; 111 } 112 113 return 0; 114} 115 116static const struct nvkm_top_func 117gk104_top = { 118 .oneinit = gk104_top_oneinit, 119}; 120 121int 122gk104_top_new(struct nvkm_device *device, int index, struct nvkm_top **ptop) 123{ 124 return nvkm_top_new_(&gk104_top, device, index, ptop); 125} 126