drivers/gpu/drm/nouveau/nvkm/engine/sw/nv10.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 #include <engine/sw.h>
  25
  26 #include <nvif/ioctl.h>
  27
  28 /*******************************************************************************
  29  * software object classes
  30  ******************************************************************************/
  31
  32 static int
  33 nv10_sw_flip(struct nvkm_object *object, u32 mthd, void *args, u32 size)
  34 {
  35         struct nvkm_sw_chan *chan = (void *)nv_engctx(object->parent);
  36         if (chan->flip)
  37                 return chan->flip(chan->flip_data);
  38         return -EINVAL;
  39 }
  40
  41 static struct nvkm_omthds
  42 nv10_sw_omthds[] = {
  43         { 0x0500, 0x0500, nv10_sw_flip },
  44         {}
  45 };
  46
  47 static struct nvkm_oclass
  48 nv10_sw_sclass[] = {
  49         { NVIF_IOCTL_NEW_V0_SW_NV10, &nvkm_object_ofuncs, nv10_sw_omthds },
  50         {}
  51 };
  52
  53 /*******************************************************************************
  54  * software context
  55  ******************************************************************************/
  56
  57 static int
  58 nv10_sw_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
  59                      struct nvkm_oclass *oclass, void *data, u32 size,
  60                      struct nvkm_object **pobject)
  61 {
  62         struct nvkm_sw_chan *chan;
  63         int ret;
  64
  65         ret = nvkm_sw_context_create(parent, engine, oclass, &chan);
  66         *pobject = nv_object(chan);
  67         if (ret)
  68                 return ret;
  69
  70         return 0;
  71 }
  72
  73 static struct nvkm_oclass
  74 nv10_sw_cclass = {
  75         .handle = NV_ENGCTX(SW, 0x04),
  76         .ofuncs = &(struct nvkm_ofuncs) {
  77                 .ctor = nv10_sw_context_ctor,
  78                 .dtor = _nvkm_sw_context_dtor,
  79                 .init = _nvkm_sw_context_init,
  80                 .fini = _nvkm_sw_context_fini,
  81         },
  82 };
  83
  84 /*******************************************************************************
  85  * software engine/subdev functions
  86  ******************************************************************************/
  87
  88 static int
  89 nv10_sw_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
  90              struct nvkm_oclass *oclass, void *data, u32 size,
  91              struct nvkm_object **pobject)
  92 {
  93         struct nvkm_sw *sw;
  94         int ret;
  95
  96         ret = nvkm_sw_create(parent, engine, oclass, &sw);
  97         *pobject = nv_object(sw);
  98         if (ret)
  99                 return ret;
 100
 101         nv_engine(sw)->cclass = &nv10_sw_cclass;
 102         nv_engine(sw)->sclass = nv10_sw_sclass;
 103         nv_subdev(sw)->intr = nv04_sw_intr;
 104         return 0;
 105 }
 106
 107 struct nvkm_oclass *
 108 nv10_sw_oclass = &(struct nvkm_oclass) {
 109         .handle = NV_ENGINE(SW, 0x10),
 110         .ofuncs = &(struct nvkm_ofuncs) {
 111                 .ctor = nv10_sw_ctor,
 112                 .dtor = _nvkm_sw_dtor,
 113                 .init = _nvkm_sw_init,
 114                 .fini = _nvkm_sw_fini,
 115         },
 116 };