1 /* 2 * Copyright 2012 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * 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 OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 #include <engine/sec.h> 25 #include <engine/falcon.h> 26 #include "fuc/g98.fuc0s.h" 27 28 #include <core/client.h> 29 #include <core/enum.h> 30 #include <engine/fifo.h> 31 32 /******************************************************************************* 33 * Crypt object classes 34 ******************************************************************************/ 35 36 static struct nvkm_oclass 37 g98_sec_sclass[] = { 38 { 0x88b4, &nvkm_object_ofuncs }, 39 {}, 40 }; 41 42 /******************************************************************************* 43 * PSEC context 44 ******************************************************************************/ 45 46 static struct nvkm_oclass 47 g98_sec_cclass = { 48 .handle = NV_ENGCTX(SEC, 0x98), 49 .ofuncs = &(struct nvkm_ofuncs) { 50 .ctor = _nvkm_falcon_context_ctor, 51 .dtor = _nvkm_falcon_context_dtor, 52 .init = _nvkm_falcon_context_init, 53 .fini = _nvkm_falcon_context_fini, 54 .rd32 = _nvkm_falcon_context_rd32, 55 .wr32 = _nvkm_falcon_context_wr32, 56 }, 57 }; 58 59 /******************************************************************************* 60 * PSEC engine/subdev functions 61 ******************************************************************************/ 62 63 static const struct nvkm_enum g98_sec_isr_error_name[] = { 64 { 0x0000, "ILLEGAL_MTHD" }, 65 { 0x0001, "INVALID_BITFIELD" }, 66 { 0x0002, "INVALID_ENUM" }, 67 { 0x0003, "QUERY" }, 68 {} 69 }; 70 71 static void 72 g98_sec_intr(struct nvkm_subdev *subdev) 73 { 74 struct nvkm_falcon *sec = (void *)subdev; 75 struct nvkm_device *device = sec->engine.subdev.device; 76 struct nvkm_fifo *fifo = device->fifo; 77 struct nvkm_engine *engine = nv_engine(subdev); 78 struct nvkm_object *engctx; 79 u32 disp = nvkm_rd32(device, 0x08701c); 80 u32 stat = nvkm_rd32(device, 0x087008) & disp & ~(disp >> 16); 81 u32 inst = nvkm_rd32(device, 0x087050) & 0x3fffffff; 82 u32 ssta = nvkm_rd32(device, 0x087040) & 0x0000ffff; 83 u32 addr = nvkm_rd32(device, 0x087040) >> 16; 84 u32 mthd = (addr & 0x07ff) << 2; 85 u32 subc = (addr & 0x3800) >> 11; 86 u32 data = nvkm_rd32(device, 0x087044); 87 const struct nvkm_enum *en; 88 int chid; 89 90 engctx = nvkm_engctx_get(engine, inst); 91 chid = fifo->chid(fifo, engctx); 92 93 if (stat & 0x00000040) { 94 en = nvkm_enum_find(g98_sec_isr_error_name, ssta); 95 nvkm_error(subdev, "DISPATCH_ERROR %04x [%s] " 96 "ch %d [%010llx %s] subc %d " 97 "mthd %04x data %08x\n", ssta, 98 en ? en->name : "", chid, (u64)inst << 12, 99 nvkm_client_name(engctx), subc, mthd, data); 100 nvkm_wr32(device, 0x087004, 0x00000040); 101 stat &= ~0x00000040; 102 } 103 104 if (stat) { 105 nvkm_error(subdev, "intr %08x\n", stat); 106 nvkm_wr32(device, 0x087004, stat); 107 } 108 109 nvkm_engctx_put(engctx); 110 } 111 112 static int 113 g98_sec_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 114 struct nvkm_oclass *oclass, void *data, u32 size, 115 struct nvkm_object **pobject) 116 { 117 struct nvkm_falcon *sec; 118 int ret; 119 120 ret = nvkm_falcon_create(parent, engine, oclass, 0x087000, true, 121 "PSEC", "sec", &sec); 122 *pobject = nv_object(sec); 123 if (ret) 124 return ret; 125 126 nv_subdev(sec)->unit = 0x00004000; 127 nv_subdev(sec)->intr = g98_sec_intr; 128 nv_engine(sec)->cclass = &g98_sec_cclass; 129 nv_engine(sec)->sclass = g98_sec_sclass; 130 nv_falcon(sec)->code.data = g98_sec_code; 131 nv_falcon(sec)->code.size = sizeof(g98_sec_code); 132 nv_falcon(sec)->data.data = g98_sec_data; 133 nv_falcon(sec)->data.size = sizeof(g98_sec_data); 134 return 0; 135 } 136 137 struct nvkm_oclass 138 g98_sec_oclass = { 139 .handle = NV_ENGINE(SEC, 0x98), 140 .ofuncs = &(struct nvkm_ofuncs) { 141 .ctor = g98_sec_ctor, 142 .dtor = _nvkm_falcon_dtor, 143 .init = _nvkm_falcon_init, 144 .fini = _nvkm_falcon_fini, 145 }, 146 }; 147