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/cipher.h> 25 #include <engine/fifo.h> 26 27 #include <core/client.h> 28 #include <core/engctx.h> 29 #include <core/enum.h> 30 31 struct g84_cipher_priv { 32 struct nvkm_engine base; 33 }; 34 35 /******************************************************************************* 36 * Crypt object classes 37 ******************************************************************************/ 38 39 static int 40 g84_cipher_object_ctor(struct nvkm_object *parent, 41 struct nvkm_object *engine, 42 struct nvkm_oclass *oclass, void *data, u32 size, 43 struct nvkm_object **pobject) 44 { 45 struct nvkm_gpuobj *obj; 46 int ret; 47 48 ret = nvkm_gpuobj_create(parent, engine, oclass, 0, parent, 49 16, 16, 0, &obj); 50 *pobject = nv_object(obj); 51 if (ret) 52 return ret; 53 54 nv_wo32(obj, 0x00, nv_mclass(obj)); 55 nv_wo32(obj, 0x04, 0x00000000); 56 nv_wo32(obj, 0x08, 0x00000000); 57 nv_wo32(obj, 0x0c, 0x00000000); 58 return 0; 59 } 60 61 static struct nvkm_ofuncs 62 g84_cipher_ofuncs = { 63 .ctor = g84_cipher_object_ctor, 64 .dtor = _nvkm_gpuobj_dtor, 65 .init = _nvkm_gpuobj_init, 66 .fini = _nvkm_gpuobj_fini, 67 .rd32 = _nvkm_gpuobj_rd32, 68 .wr32 = _nvkm_gpuobj_wr32, 69 }; 70 71 static struct nvkm_oclass 72 g84_cipher_sclass[] = { 73 { 0x74c1, &g84_cipher_ofuncs }, 74 {} 75 }; 76 77 /******************************************************************************* 78 * PCIPHER context 79 ******************************************************************************/ 80 81 static struct nvkm_oclass 82 g84_cipher_cclass = { 83 .handle = NV_ENGCTX(CIPHER, 0x84), 84 .ofuncs = &(struct nvkm_ofuncs) { 85 .ctor = _nvkm_engctx_ctor, 86 .dtor = _nvkm_engctx_dtor, 87 .init = _nvkm_engctx_init, 88 .fini = _nvkm_engctx_fini, 89 .rd32 = _nvkm_engctx_rd32, 90 .wr32 = _nvkm_engctx_wr32, 91 }, 92 }; 93 94 /******************************************************************************* 95 * PCIPHER engine/subdev functions 96 ******************************************************************************/ 97 98 static const struct nvkm_bitfield 99 g84_cipher_intr_mask[] = { 100 { 0x00000001, "INVALID_STATE" }, 101 { 0x00000002, "ILLEGAL_MTHD" }, 102 { 0x00000004, "ILLEGAL_CLASS" }, 103 { 0x00000080, "QUERY" }, 104 { 0x00000100, "FAULT" }, 105 {} 106 }; 107 108 static void 109 g84_cipher_intr(struct nvkm_subdev *subdev) 110 { 111 struct nvkm_fifo *pfifo = nvkm_fifo(subdev); 112 struct nvkm_engine *engine = nv_engine(subdev); 113 struct nvkm_object *engctx; 114 struct g84_cipher_priv *priv = (void *)subdev; 115 u32 stat = nv_rd32(priv, 0x102130); 116 u32 mthd = nv_rd32(priv, 0x102190); 117 u32 data = nv_rd32(priv, 0x102194); 118 u32 inst = nv_rd32(priv, 0x102188) & 0x7fffffff; 119 int chid; 120 121 engctx = nvkm_engctx_get(engine, inst); 122 chid = pfifo->chid(pfifo, engctx); 123 124 if (stat) { 125 nv_error(priv, "%s", ""); 126 nvkm_bitfield_print(g84_cipher_intr_mask, stat); 127 pr_cont(" ch %d [0x%010llx %s] mthd 0x%04x data 0x%08x\n", 128 chid, (u64)inst << 12, nvkm_client_name(engctx), 129 mthd, data); 130 } 131 132 nv_wr32(priv, 0x102130, stat); 133 nv_wr32(priv, 0x10200c, 0x10); 134 135 nvkm_engctx_put(engctx); 136 } 137 138 static int 139 g84_cipher_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 140 struct nvkm_oclass *oclass, void *data, u32 size, 141 struct nvkm_object **pobject) 142 { 143 struct g84_cipher_priv *priv; 144 int ret; 145 146 ret = nvkm_engine_create(parent, engine, oclass, true, 147 "PCIPHER", "cipher", &priv); 148 *pobject = nv_object(priv); 149 if (ret) 150 return ret; 151 152 nv_subdev(priv)->unit = 0x00004000; 153 nv_subdev(priv)->intr = g84_cipher_intr; 154 nv_engine(priv)->cclass = &g84_cipher_cclass; 155 nv_engine(priv)->sclass = g84_cipher_sclass; 156 return 0; 157 } 158 159 static int 160 g84_cipher_init(struct nvkm_object *object) 161 { 162 struct g84_cipher_priv *priv = (void *)object; 163 int ret; 164 165 ret = nvkm_engine_init(&priv->base); 166 if (ret) 167 return ret; 168 169 nv_wr32(priv, 0x102130, 0xffffffff); 170 nv_wr32(priv, 0x102140, 0xffffffbf); 171 nv_wr32(priv, 0x10200c, 0x00000010); 172 return 0; 173 } 174 175 struct nvkm_oclass 176 g84_cipher_oclass = { 177 .handle = NV_ENGINE(CIPHER, 0x84), 178 .ofuncs = &(struct nvkm_ofuncs) { 179 .ctor = g84_cipher_ctor, 180 .dtor = _nvkm_engine_dtor, 181 .init = g84_cipher_init, 182 .fini = _nvkm_engine_fini, 183 }, 184 }; 185