kernel/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv50.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 "nv50.h"
  25
  26 #include <core/device.h>
  27 #include <core/handle.h>
  28 #include <core/namedb.h>
  29 #include <engine/disp.h>
  30 #include <subdev/bar.h>
  31
  32 #include <nvif/event.h>
  33
  34 /*******************************************************************************
  35  * software object classes
  36  ******************************************************************************/
  37
  38 static int
  39 nv50_sw_mthd_dma_vblsem(struct nvkm_object *object, u32 mthd,
  40                         void *args, u32 size)
  41 {
  42         struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
  43         struct nvkm_fifo_chan *fifo = (void *)nv_object(chan)->parent;
  44         struct nvkm_handle *handle;
  45         int ret = -EINVAL;
  46
  47         handle = nvkm_namedb_get(nv_namedb(fifo), *(u32 *)args);
  48         if (!handle)
  49                 return -ENOENT;
  50
  51         if (nv_iclass(handle->object, NV_GPUOBJ_CLASS)) {
  52                 struct nvkm_gpuobj *gpuobj = nv_gpuobj(handle->object);
  53                 chan->vblank.ctxdma = gpuobj->node->offset >> 4;
  54                 ret = 0;
  55         }
  56         nvkm_namedb_put(handle);
  57         return ret;
  58 }
  59
  60 static int
  61 nv50_sw_mthd_vblsem_offset(struct nvkm_object *object, u32 mthd,
  62                            void *args, u32 size)
  63 {
  64         struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
  65         chan->vblank.offset = *(u32 *)args;
  66         return 0;
  67 }
  68
  69 int
  70 nv50_sw_mthd_vblsem_value(struct nvkm_object *object, u32 mthd,
  71                           void *args, u32 size)
  72 {
  73         struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
  74         chan->vblank.value = *(u32 *)args;
  75         return 0;
  76 }
  77
  78 int
  79 nv50_sw_mthd_vblsem_release(struct nvkm_object *object, u32 mthd,
  80                             void *args, u32 size)
  81 {
  82         struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
  83         u32 head = *(u32 *)args;
  84         if (head >= nvkm_disp(chan)->vblank.index_nr)
  85                 return -EINVAL;
  86
  87         nvkm_notify_get(&chan->vblank.notify[head]);
  88         return 0;
  89 }
  90
  91 int
  92 nv50_sw_mthd_flip(struct nvkm_object *object, u32 mthd, void *args, u32 size)
  93 {
  94         struct nv50_sw_chan *chan = (void *)nv_engctx(object->parent);
  95         if (chan->base.flip)
  96                 return chan->base.flip(chan->base.flip_data);
  97         return -EINVAL;
  98 }
  99
 100 static struct nvkm_omthds
 101 nv50_sw_omthds[] = {
 102         { 0x018c, 0x018c, nv50_sw_mthd_dma_vblsem },
 103         { 0x0400, 0x0400, nv50_sw_mthd_vblsem_offset },
 104         { 0x0404, 0x0404, nv50_sw_mthd_vblsem_value },
 105         { 0x0408, 0x0408, nv50_sw_mthd_vblsem_release },
 106         { 0x0500, 0x0500, nv50_sw_mthd_flip },
 107         {}
 108 };
 109
 110 static struct nvkm_oclass
 111 nv50_sw_sclass[] = {
 112         { 0x506e, &nvkm_object_ofuncs, nv50_sw_omthds },
 113         {}
 114 };
 115
 116 /*******************************************************************************
 117  * software context
 118  ******************************************************************************/
 119
 120 static int
 121 nv50_sw_vblsem_release(struct nvkm_notify *notify)
 122 {
 123         struct nv50_sw_chan *chan =
 124                 container_of(notify, typeof(*chan), vblank.notify[notify->index]);
 125         struct nv50_sw_priv *priv = (void *)nv_object(chan)->engine;
 126         struct nvkm_bar *bar = nvkm_bar(priv);
 127
 128         nv_wr32(priv, 0x001704, chan->vblank.channel);
 129         nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma);
 130         bar->flush(bar);
 131
 132         if (nv_device(priv)->chipset == 0x50) {
 133                 nv_wr32(priv, 0x001570, chan->vblank.offset);
 134                 nv_wr32(priv, 0x001574, chan->vblank.value);
 135         } else {
 136                 nv_wr32(priv, 0x060010, chan->vblank.offset);
 137                 nv_wr32(priv, 0x060014, chan->vblank.value);
 138         }
 139
 140         return NVKM_NOTIFY_DROP;
 141 }
 142
 143 void
 144 nv50_sw_context_dtor(struct nvkm_object *object)
 145 {
 146         struct nv50_sw_chan *chan = (void *)object;
 147         int i;
 148
 149         for (i = 0; i < ARRAY_SIZE(chan->vblank.notify); i++)
 150                 nvkm_notify_fini(&chan->vblank.notify[i]);
 151
 152         nvkm_sw_context_destroy(&chan->base);
 153 }
 154
 155 int
 156 nv50_sw_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 157                      struct nvkm_oclass *oclass, void *data, u32 size,
 158                      struct nvkm_object **pobject)
 159 {
 160         struct nvkm_disp *pdisp = nvkm_disp(parent);
 161         struct nv50_sw_cclass *pclass = (void *)oclass;
 162         struct nv50_sw_chan *chan;
 163         int ret, i;
 164
 165         ret = nvkm_sw_context_create(parent, engine, oclass, &chan);
 166         *pobject = nv_object(chan);
 167         if (ret)
 168                 return ret;
 169
 170         for (i = 0; pdisp && i < pdisp->vblank.index_nr; i++) {
 171                 ret = nvkm_notify_init(NULL, &pdisp->vblank, pclass->vblank,
 172                                        false,
 173                                        &(struct nvif_notify_head_req_v0) {
 174                                         .head = i,
 175                                        },
 176                                        sizeof(struct nvif_notify_head_req_v0),
 177                                        sizeof(struct nvif_notify_head_rep_v0),
 178                                        &chan->vblank.notify[i]);
 179                 if (ret)
 180                         return ret;
 181         }
 182
 183         chan->vblank.channel = nv_gpuobj(parent->parent)->addr >> 12;
 184         return 0;
 185 }
 186
 187 static struct nv50_sw_cclass
 188 nv50_sw_cclass = {
 189         .base.handle = NV_ENGCTX(SW, 0x50),
 190         .base.ofuncs = &(struct nvkm_ofuncs) {
 191                 .ctor = nv50_sw_context_ctor,
 192                 .dtor = nv50_sw_context_dtor,
 193                 .init = _nvkm_sw_context_init,
 194                 .fini = _nvkm_sw_context_fini,
 195         },
 196         .vblank = nv50_sw_vblsem_release,
 197 };
 198
 199 /*******************************************************************************
 200  * software engine/subdev functions
 201  ******************************************************************************/
 202
 203 int
 204 nv50_sw_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 205              struct nvkm_oclass *oclass, void *data, u32 size,
 206              struct nvkm_object **pobject)
 207 {
 208         struct nv50_sw_oclass *pclass = (void *)oclass;
 209         struct nv50_sw_priv *priv;
 210         int ret;
 211
 212         ret = nvkm_sw_create(parent, engine, oclass, &priv);
 213         *pobject = nv_object(priv);
 214         if (ret)
 215                 return ret;
 216
 217         nv_engine(priv)->cclass = pclass->cclass;
 218         nv_engine(priv)->sclass = pclass->sclass;
 219         nv_subdev(priv)->intr = nv04_sw_intr;
 220         return 0;
 221 }
 222
 223 struct nvkm_oclass *
 224 nv50_sw_oclass = &(struct nv50_sw_oclass) {
 225         .base.handle = NV_ENGINE(SW, 0x50),
 226         .base.ofuncs = &(struct nvkm_ofuncs) {
 227                 .ctor = nv50_sw_ctor,
 228                 .dtor = _nvkm_sw_dtor,
 229                 .init = _nvkm_sw_init,
 230                 .fini = _nvkm_sw_fini,
 231         },
 232         .cclass = &nv50_sw_cclass.base,
 233         .sclass =  nv50_sw_sclass,
 234 }.base;