drivers/gpu/drm/nouveau/core/engine/copy/nva3.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/falcon.h>
  26 #include <core/class.h>
  27 #include <core/enum.h>
  28
  29 #include <subdev/fb.h>
  30 #include <subdev/vm.h>
  31
  32 #include <engine/fifo.h>
  33 #include <engine/copy.h>
  34
  35 #include "fuc/nva3.fuc.h"
  36
  37 struct nva3_copy_priv {
  38         struct nouveau_falcon base;
  39 };
  40
  41 struct nva3_copy_chan {
  42         struct nouveau_falcon_chan base;
  43 };
  44
  45 /*******************************************************************************
  46  * Copy object classes
  47  ******************************************************************************/
  48
  49 static struct nouveau_oclass
  50 nva3_copy_sclass[] = {
  51         { 0x85b5, &nouveau_object_ofuncs },
  52         {}
  53 };
  54
  55 /*******************************************************************************
  56  * PCOPY context
  57  ******************************************************************************/
  58
  59 static int
  60 nva3_copy_context_ctor(struct nouveau_object *parent,
  61                        struct nouveau_object *engine,
  62                        struct nouveau_oclass *oclass, void *data, u32 size,
  63                        struct nouveau_object **pobject)
  64 {
  65         struct nva3_copy_chan *priv;
  66         int ret;
  67
  68         ret = nouveau_falcon_context_create(parent, engine, oclass, NULL, 256,
  69                                             0, NVOBJ_FLAG_ZERO_ALLOC, &priv);
  70         *pobject = nv_object(priv);
  71         if (ret)
  72                 return ret;
  73
  74         return 0;
  75 }
  76
  77 static struct nouveau_oclass
  78 nva3_copy_cclass = {
  79         .handle = NV_ENGCTX(COPY0, 0xa3),
  80         .ofuncs = &(struct nouveau_ofuncs) {
  81                 .ctor = nva3_copy_context_ctor,
  82                 .dtor = _nouveau_falcon_context_dtor,
  83                 .init = _nouveau_falcon_context_init,
  84                 .fini = _nouveau_falcon_context_fini,
  85                 .rd32 = _nouveau_falcon_context_rd32,
  86                 .wr32 = _nouveau_falcon_context_wr32,
  87
  88         },
  89 };
  90
  91 /*******************************************************************************
  92  * PCOPY engine/subdev functions
  93  ******************************************************************************/
  94
  95 static const struct nouveau_enum nva3_copy_isr_error_name[] = {
  96         { 0x0001, "ILLEGAL_MTHD" },
  97         { 0x0002, "INVALID_ENUM" },
  98         { 0x0003, "INVALID_BITFIELD" },
  99         {}
 100 };
 101
 102 void
 103 nva3_copy_intr(struct nouveau_subdev *subdev)
 104 {
 105         struct nouveau_fifo *pfifo = nouveau_fifo(subdev);
 106         struct nouveau_engine *engine = nv_engine(subdev);
 107         struct nouveau_falcon *falcon = (void *)subdev;
 108         struct nouveau_object *engctx;
 109         u32 dispatch = nv_ro32(falcon, 0x01c);
 110         u32 stat = nv_ro32(falcon, 0x008) & dispatch & ~(dispatch >> 16);
 111         u64 inst = nv_ro32(falcon, 0x050) & 0x3fffffff;
 112         u32 ssta = nv_ro32(falcon, 0x040) & 0x0000ffff;
 113         u32 addr = nv_ro32(falcon, 0x040) >> 16;
 114         u32 mthd = (addr & 0x07ff) << 2;
 115         u32 subc = (addr & 0x3800) >> 11;
 116         u32 data = nv_ro32(falcon, 0x044);
 117         int chid;
 118
 119         engctx = nouveau_engctx_get(engine, inst);
 120         chid   = pfifo->chid(pfifo, engctx);
 121
 122         if (stat & 0x00000040) {
 123                 nv_error(falcon, "DISPATCH_ERROR [");
 124                 nouveau_enum_print(nva3_copy_isr_error_name, ssta);
 125                 printk("] ch %d [0x%010llx] subc %d mthd 0x%04x data 0x%08x\n",
 126                        chid, inst << 12, subc, mthd, data);
 127                 nv_wo32(falcon, 0x004, 0x00000040);
 128                 stat &= ~0x00000040;
 129         }
 130
 131         if (stat) {
 132                 nv_error(falcon, "unhandled intr 0x%08x\n", stat);
 133                 nv_wo32(falcon, 0x004, stat);
 134         }
 135
 136         nouveau_engctx_put(engctx);
 137 }
 138
 139 static int
 140 nva3_copy_tlb_flush(struct nouveau_engine *engine)
 141 {
 142         nv50_vm_flush_engine(&engine->base, 0x0d);
 143         return 0;
 144 }
 145
 146 static int
 147 nva3_copy_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 148                struct nouveau_oclass *oclass, void *data, u32 size,
 149                struct nouveau_object **pobject)
 150 {
 151         bool enable = (nv_device(parent)->chipset != 0xaf);
 152         struct nva3_copy_priv *priv;
 153         int ret;
 154
 155         ret = nouveau_falcon_create(parent, engine, oclass, 0x104000, enable,
 156                                     "PCE0", "copy0", &priv);
 157         *pobject = nv_object(priv);
 158         if (ret)
 159                 return ret;
 160
 161         nv_subdev(priv)->unit = 0x00802000;
 162         nv_subdev(priv)->intr = nva3_copy_intr;
 163         nv_engine(priv)->cclass = &nva3_copy_cclass;
 164         nv_engine(priv)->sclass = nva3_copy_sclass;
 165         nv_engine(priv)->tlb_flush = nva3_copy_tlb_flush;
 166         nv_falcon(priv)->code.data = nva3_pcopy_code;
 167         nv_falcon(priv)->code.size = sizeof(nva3_pcopy_code);
 168         nv_falcon(priv)->data.data = nva3_pcopy_data;
 169         nv_falcon(priv)->data.size = sizeof(nva3_pcopy_data);
 170         return 0;
 171 }
 172
 173 struct nouveau_oclass
 174 nva3_copy_oclass = {
 175         .handle = NV_ENGINE(COPY0, 0xa3),
 176         .ofuncs = &(struct nouveau_ofuncs) {
 177                 .ctor = nva3_copy_ctor,
 178                 .dtor = _nouveau_falcon_dtor,
 179                 .init = _nouveau_falcon_init,
 180                 .fini = _nouveau_falcon_fini,
 181                 .rd32 = _nouveau_falcon_rd32,
 182                 .wr32 = _nouveau_falcon_wr32,
 183         },
 184 };