drivers/gpu/drm/nouveau/core/engine/crypt/nv84.c

   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
  25 #include <core/os.h>
  26 #include <core/enum.h>
  27 #include <core/class.h>
  28 #include <core/engctx.h>
  29 #include <core/gpuobj.h>
  30
  31 #include <subdev/fb.h>
  32
  33 #include <engine/crypt.h>
  34
  35 struct nv84_crypt_priv {
  36         struct nouveau_crypt base;
  37 };
  38
  39 struct nv84_crypt_chan {
  40         struct nouveau_crypt_chan base;
  41 };
  42
  43 /*******************************************************************************
  44  * Crypt object classes
  45  ******************************************************************************/
  46
  47 static int
  48 nv84_crypt_object_ctor(struct nouveau_object *parent,
  49                        struct nouveau_object *engine,
  50                        struct nouveau_oclass *oclass, void *data, u32 size,
  51                        struct nouveau_object **pobject)
  52 {
  53         struct nouveau_gpuobj *obj;
  54         int ret;
  55
  56         ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent,
  57                                     16, 16, 0, &obj);
  58         *pobject = nv_object(obj);
  59         if (ret)
  60                 return ret;
  61
  62         nv_wo32(obj, 0x00, nv_mclass(obj));
  63         nv_wo32(obj, 0x04, 0x00000000);
  64         nv_wo32(obj, 0x08, 0x00000000);
  65         nv_wo32(obj, 0x0c, 0x00000000);
  66         return 0;
  67 }
  68
  69 static struct nouveau_ofuncs
  70 nv84_crypt_ofuncs = {
  71         .ctor = nv84_crypt_object_ctor,
  72         .dtor = _nouveau_gpuobj_dtor,
  73         .init = _nouveau_gpuobj_init,
  74         .fini = _nouveau_gpuobj_fini,
  75         .rd32 = _nouveau_gpuobj_rd32,
  76         .wr32 = _nouveau_gpuobj_wr32,
  77 };
  78
  79 static struct nouveau_oclass
  80 nv84_crypt_sclass[] = {
  81         { 0x74c1, &nv84_crypt_ofuncs },
  82         {}
  83 };
  84
  85 /*******************************************************************************
  86  * PCRYPT context
  87  ******************************************************************************/
  88
  89 static int
  90 nv84_crypt_context_ctor(struct nouveau_object *parent,
  91                         struct nouveau_object *engine,
  92                         struct nouveau_oclass *oclass, void *data, u32 size,
  93                         struct nouveau_object **pobject)
  94 {
  95         struct nv84_crypt_chan *priv;
  96         int ret;
  97
  98         ret = nouveau_crypt_context_create(parent, engine, oclass, NULL, 256,
  99                                            0, NVOBJ_FLAG_ZERO_ALLOC, &priv);
 100         *pobject = nv_object(priv);
 101         if (ret)
 102                 return ret;
 103
 104         return 0;
 105 }
 106
 107 static struct nouveau_oclass
 108 nv84_crypt_cclass = {
 109         .handle = NV_ENGCTX(CRYPT, 0x84),
 110         .ofuncs = &(struct nouveau_ofuncs) {
 111                 .ctor = nv84_crypt_context_ctor,
 112                 .dtor = _nouveau_crypt_context_dtor,
 113                 .init = _nouveau_crypt_context_init,
 114                 .fini = _nouveau_crypt_context_fini,
 115                 .rd32 = _nouveau_crypt_context_rd32,
 116                 .wr32 = _nouveau_crypt_context_wr32,
 117         },
 118 };
 119
 120 /*******************************************************************************
 121  * PCRYPT engine/subdev functions
 122  ******************************************************************************/
 123
 124 static struct nouveau_bitfield nv84_crypt_intr_mask[] = {
 125         { 0x00000001, "INVALID_STATE" },
 126         { 0x00000002, "ILLEGAL_MTHD" },
 127         { 0x00000004, "ILLEGAL_CLASS" },
 128         { 0x00000080, "QUERY" },
 129         { 0x00000100, "FAULT" },
 130         {}
 131 };
 132
 133 static void
 134 nv84_crypt_intr(struct nouveau_subdev *subdev)
 135 {
 136         struct nv84_crypt_priv *priv = (void *)subdev;
 137         u32 stat = nv_rd32(priv, 0x102130);
 138         u32 mthd = nv_rd32(priv, 0x102190);
 139         u32 data = nv_rd32(priv, 0x102194);
 140         u32 inst = nv_rd32(priv, 0x102188) & 0x7fffffff;
 141
 142         if (stat) {
 143                 nv_error(priv, "");
 144                 nouveau_bitfield_print(nv84_crypt_intr_mask, stat);
 145                 printk(" ch 0x%010llx mthd 0x%04x data 0x%08x\n",
 146                        (u64)inst << 12, mthd, data);
 147         }
 148
 149         nv_wr32(priv, 0x102130, stat);
 150         nv_wr32(priv, 0x10200c, 0x10);
 151
 152         nv50_fb_trap(nouveau_fb(priv), 1);
 153 }
 154
 155 static int
 156 nv84_crypt_tlb_flush(struct nouveau_engine *engine)
 157 {
 158         nv50_vm_flush_engine(&engine->base, 0x0a);
 159         return 0;
 160 }
 161
 162 static int
 163 nv84_crypt_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 164                struct nouveau_oclass *oclass, void *data, u32 size,
 165                struct nouveau_object **pobject)
 166 {
 167         struct nv84_crypt_priv *priv;
 168         int ret;
 169
 170         ret = nouveau_crypt_create(parent, engine, oclass, &priv);
 171         *pobject = nv_object(priv);
 172         if (ret)
 173                 return ret;
 174
 175         nv_subdev(priv)->unit = 0x00004000;
 176         nv_subdev(priv)->intr = nv84_crypt_intr;
 177         nv_engine(priv)->cclass = &nv84_crypt_cclass;
 178         nv_engine(priv)->sclass = nv84_crypt_sclass;
 179         nv_engine(priv)->tlb_flush = nv84_crypt_tlb_flush;
 180         return 0;
 181 }
 182
 183 static int
 184 nv84_crypt_init(struct nouveau_object *object)
 185 {
 186         struct nv84_crypt_priv *priv = (void *)object;
 187         int ret;
 188
 189         ret = nouveau_crypt_init(&priv->base);
 190         if (ret)
 191                 return ret;
 192
 193         nv_wr32(priv, 0x102130, 0xffffffff);
 194         nv_wr32(priv, 0x102140, 0xffffffbf);
 195         nv_wr32(priv, 0x10200c, 0x00000010);
 196         return 0;
 197 }
 198
 199 struct nouveau_oclass
 200 nv84_crypt_oclass = {
 201         .handle = NV_ENGINE(CRYPT, 0x84),
 202         .ofuncs = &(struct nouveau_ofuncs) {
 203                 .ctor = nv84_crypt_ctor,
 204                 .dtor = _nouveau_crypt_dtor,
 205                 .init = nv84_crypt_init,
 206                 .fini = _nouveau_crypt_fini,
 207         },
 208 };