drivers/gpu/drm/nouveau/core/engine/software/nvc0.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/class.h>
  27 #include <core/engctx.h>
  28 #include <core/event.h>
  29
  30 #include <subdev/bar.h>
  31
  32 #include <engine/software.h>
  33 #include <engine/disp.h>
  34
  35 struct nvc0_software_priv {
  36         struct nouveau_software base;
  37 };
  38
  39 struct nvc0_software_chan {
  40         struct nouveau_software_chan base;
  41 };
  42
  43 /*******************************************************************************
  44  * software object classes
  45  ******************************************************************************/
  46
  47 static int
  48 nvc0_software_mthd_vblsem_offset(struct nouveau_object *object, u32 mthd,
  49                                  void *args, u32 size)
  50 {
  51         struct nvc0_software_chan *chan = (void *)nv_engctx(object->parent);
  52         u64 data = *(u32 *)args;
  53         if (mthd == 0x0400) {
  54                 chan->base.vblank.offset &= 0x00ffffffffULL;
  55                 chan->base.vblank.offset |= data << 32;
  56         } else {
  57                 chan->base.vblank.offset &= 0xff00000000ULL;
  58                 chan->base.vblank.offset |= data;
  59         }
  60         return 0;
  61 }
  62
  63 static int
  64 nvc0_software_mthd_vblsem_value(struct nouveau_object *object, u32 mthd,
  65                                 void *args, u32 size)
  66 {
  67         struct nvc0_software_chan *chan = (void *)nv_engctx(object->parent);
  68         chan->base.vblank.value = *(u32 *)args;
  69         return 0;
  70 }
  71
  72 static int
  73 nvc0_software_mthd_vblsem_release(struct nouveau_object *object, u32 mthd,
  74                                   void *args, u32 size)
  75 {
  76         struct nvc0_software_chan *chan = (void *)nv_engctx(object->parent);
  77         struct nouveau_disp *disp = nouveau_disp(object);
  78         u32 crtc = *(u32 *)args;
  79
  80         if ((nv_device(object)->card_type < NV_E0 && crtc > 1) || crtc > 3)
  81                 return -EINVAL;
  82
  83         nouveau_event_get(disp->vblank, crtc, &chan->base.vblank.event);
  84         return 0;
  85 }
  86
  87 static int
  88 nvc0_software_mthd_flip(struct nouveau_object *object, u32 mthd,
  89                         void *args, u32 size)
  90 {
  91         struct nvc0_software_chan *chan = (void *)nv_engctx(object->parent);
  92         if (chan->base.flip)
  93                 return chan->base.flip(chan->base.flip_data);
  94         return -EINVAL;
  95 }
  96
  97 static struct nouveau_omthds
  98 nvc0_software_omthds[] = {
  99         { 0x0400, 0x0400, nvc0_software_mthd_vblsem_offset },
 100         { 0x0404, 0x0404, nvc0_software_mthd_vblsem_offset },
 101         { 0x0408, 0x0408, nvc0_software_mthd_vblsem_value },
 102         { 0x040c, 0x040c, nvc0_software_mthd_vblsem_release },
 103         { 0x0500, 0x0500, nvc0_software_mthd_flip },
 104         {}
 105 };
 106
 107 static struct nouveau_oclass
 108 nvc0_software_sclass[] = {
 109         { 0x906e, &nouveau_object_ofuncs, nvc0_software_omthds },
 110         {}
 111 };
 112
 113 /*******************************************************************************
 114  * software context
 115  ******************************************************************************/
 116
 117 static int
 118 nvc0_software_vblsem_release(struct nouveau_eventh *event, int head)
 119 {
 120         struct nouveau_software_chan *chan =
 121                 container_of(event, struct nouveau_software_chan, vblank.event);
 122         struct nvc0_software_priv *priv = (void *)nv_object(chan)->engine;
 123         struct nouveau_bar *bar = nouveau_bar(priv);
 124
 125         nv_wr32(priv, 0x001718, 0x80000000 | chan->vblank.channel);
 126         bar->flush(bar);
 127         nv_wr32(priv, 0x06000c, upper_32_bits(chan->vblank.offset));
 128         nv_wr32(priv, 0x060010, lower_32_bits(chan->vblank.offset));
 129         nv_wr32(priv, 0x060014, chan->vblank.value);
 130
 131         return NVKM_EVENT_DROP;
 132 }
 133
 134 static int
 135 nvc0_software_context_ctor(struct nouveau_object *parent,
 136                            struct nouveau_object *engine,
 137                            struct nouveau_oclass *oclass, void *data, u32 size,
 138                            struct nouveau_object **pobject)
 139 {
 140         struct nvc0_software_chan *chan;
 141         int ret;
 142
 143         ret = nouveau_software_context_create(parent, engine, oclass, &chan);
 144         *pobject = nv_object(chan);
 145         if (ret)
 146                 return ret;
 147
 148         chan->base.vblank.channel = nv_gpuobj(parent->parent)->addr >> 12;
 149         chan->base.vblank.event.func = nvc0_software_vblsem_release;
 150         return 0;
 151 }
 152
 153 static struct nouveau_oclass
 154 nvc0_software_cclass = {
 155         .handle = NV_ENGCTX(SW, 0xc0),
 156         .ofuncs = &(struct nouveau_ofuncs) {
 157                 .ctor = nvc0_software_context_ctor,
 158                 .dtor = _nouveau_software_context_dtor,
 159                 .init = _nouveau_software_context_init,
 160                 .fini = _nouveau_software_context_fini,
 161         },
 162 };
 163
 164 /*******************************************************************************
 165  * software engine/subdev functions
 166  ******************************************************************************/
 167
 168 static int
 169 nvc0_software_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 170                    struct nouveau_oclass *oclass, void *data, u32 size,
 171                    struct nouveau_object **pobject)
 172 {
 173         struct nvc0_software_priv *priv;
 174         int ret;
 175
 176         ret = nouveau_software_create(parent, engine, oclass, &priv);
 177         *pobject = nv_object(priv);
 178         if (ret)
 179                 return ret;
 180
 181         nv_engine(priv)->cclass = &nvc0_software_cclass;
 182         nv_engine(priv)->sclass = nvc0_software_sclass;
 183         nv_subdev(priv)->intr = nv04_software_intr;
 184         return 0;
 185 }
 186
 187 struct nouveau_oclass
 188 nvc0_software_oclass = {
 189         .handle = NV_ENGINE(SW, 0xc0),
 190         .ofuncs = &(struct nouveau_ofuncs) {
 191                 .ctor = nvc0_software_ctor,
 192                 .dtor = _nouveau_software_dtor,
 193                 .init = _nouveau_software_init,
 194                 .fini = _nouveau_software_fini,
 195         },
 196 };