kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.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 "channv50.h"
  25 #include "rootnv50.h"
  26
  27 #include <core/client.h>
  28 #include <core/ramht.h>
  29 #include <engine/dma.h>
  30
  31 #include <nvif/class.h>
  32 #include <nvif/event.h>
  33 #include <nvif/unpack.h>
  34
  35 static void
  36 nv50_disp_mthd_list(struct nv50_disp *disp, int debug, u32 base, int c,
  37                     const struct nv50_disp_mthd_list *list, int inst)
  38 {
  39         struct nvkm_subdev *subdev = &disp->base.engine.subdev;
  40         struct nvkm_device *device = subdev->device;
  41         int i;
  42
  43         for (i = 0; list->data[i].mthd; i++) {
  44                 if (list->data[i].addr) {
  45                         u32 next = nvkm_rd32(device, list->data[i].addr + base + 0);
  46                         u32 prev = nvkm_rd32(device, list->data[i].addr + base + c);
  47                         u32 mthd = list->data[i].mthd + (list->mthd * inst);
  48                         const char *name = list->data[i].name;
  49                         char mods[16];
  50
  51                         if (prev != next)
  52                                 snprintf(mods, sizeof(mods), "-> %08x", next);
  53                         else
  54                                 snprintf(mods, sizeof(mods), "%13c", ' ');
  55
  56                         nvkm_printk_(subdev, debug, info,
  57                                      "\t%04x: %08x %s%s%s\n",
  58                                      mthd, prev, mods, name ? " // " : "",
  59                                      name ? name : "");
  60                 }
  61         }
  62 }
  63
  64 void
  65 nv50_disp_chan_mthd(struct nv50_disp_chan *chan, int debug)
  66 {
  67         struct nv50_disp *disp = chan->root->disp;
  68         struct nvkm_subdev *subdev = &disp->base.engine.subdev;
  69         const struct nv50_disp_chan_mthd *mthd = chan->mthd;
  70         const struct nv50_disp_mthd_list *list;
  71         int i, j;
  72
  73         if (debug > subdev->debug)
  74                 return;
  75
  76         for (i = 0; (list = mthd->data[i].mthd) != NULL; i++) {
  77                 u32 base = chan->head * mthd->addr;
  78                 for (j = 0; j < mthd->data[i].nr; j++, base += list->addr) {
  79                         const char *cname = mthd->name;
  80                         const char *sname = "";
  81                         char cname_[16], sname_[16];
  82
  83                         if (mthd->addr) {
  84                                 snprintf(cname_, sizeof(cname_), "%s %d",
  85                                          mthd->name, chan->chid);
  86                                 cname = cname_;
  87                         }
  88
  89                         if (mthd->data[i].nr > 1) {
  90                                 snprintf(sname_, sizeof(sname_), " - %s %d",
  91                                          mthd->data[i].name, j);
  92                                 sname = sname_;
  93                         }
  94
  95                         nvkm_printk_(subdev, debug, info, "%s%s:\n", cname, sname);
  96                         nv50_disp_mthd_list(disp, debug, base, mthd->prev,
  97                                             list, j);
  98                 }
  99         }
 100 }
 101
 102 static void
 103 nv50_disp_chan_uevent_fini(struct nvkm_event *event, int type, int index)
 104 {
 105         struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
 106         struct nvkm_device *device = disp->base.engine.subdev.device;
 107         nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000000 << index);
 108         nvkm_wr32(device, 0x610020, 0x00000001 << index);
 109 }
 110
 111 static void
 112 nv50_disp_chan_uevent_init(struct nvkm_event *event, int types, int index)
 113 {
 114         struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
 115         struct nvkm_device *device = disp->base.engine.subdev.device;
 116         nvkm_wr32(device, 0x610020, 0x00000001 << index);
 117         nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000001 << index);
 118 }
 119
 120 void
 121 nv50_disp_chan_uevent_send(struct nv50_disp *disp, int chid)
 122 {
 123         struct nvif_notify_uevent_rep {
 124         } rep;
 125
 126         nvkm_event_send(&disp->uevent, 1, chid, &rep, sizeof(rep));
 127 }
 128
 129 int
 130 nv50_disp_chan_uevent_ctor(struct nvkm_object *object, void *data, u32 size,
 131                            struct nvkm_notify *notify)
 132 {
 133         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 134         union {
 135                 struct nvif_notify_uevent_req none;
 136         } *args = data;
 137         int ret;
 138
 139         if (nvif_unvers(args->none)) {
 140                 notify->size  = sizeof(struct nvif_notify_uevent_rep);
 141                 notify->types = 1;
 142                 notify->index = chan->chid;
 143                 return 0;
 144         }
 145
 146         return ret;
 147 }
 148
 149 const struct nvkm_event_func
 150 nv50_disp_chan_uevent = {
 151         .ctor = nv50_disp_chan_uevent_ctor,
 152         .init = nv50_disp_chan_uevent_init,
 153         .fini = nv50_disp_chan_uevent_fini,
 154 };
 155
 156 int
 157 nv50_disp_chan_rd32(struct nvkm_object *object, u64 addr, u32 *data)
 158 {
 159         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 160         struct nv50_disp *disp = chan->root->disp;
 161         struct nvkm_device *device = disp->base.engine.subdev.device;
 162         *data = nvkm_rd32(device, 0x640000 + (chan->chid * 0x1000) + addr);
 163         return 0;
 164 }
 165
 166 int
 167 nv50_disp_chan_wr32(struct nvkm_object *object, u64 addr, u32 data)
 168 {
 169         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 170         struct nv50_disp *disp = chan->root->disp;
 171         struct nvkm_device *device = disp->base.engine.subdev.device;
 172         nvkm_wr32(device, 0x640000 + (chan->chid * 0x1000) + addr, data);
 173         return 0;
 174 }
 175
 176 int
 177 nv50_disp_chan_ntfy(struct nvkm_object *object, u32 type,
 178                     struct nvkm_event **pevent)
 179 {
 180         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 181         struct nv50_disp *disp = chan->root->disp;
 182         switch (type) {
 183         case NV50_DISP_CORE_CHANNEL_DMA_V0_NTFY_UEVENT:
 184                 *pevent = &disp->uevent;
 185                 return 0;
 186         default:
 187                 break;
 188         }
 189         return -EINVAL;
 190 }
 191
 192 int
 193 nv50_disp_chan_map(struct nvkm_object *object, u64 *addr, u32 *size)
 194 {
 195         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 196         struct nv50_disp *disp = chan->root->disp;
 197         struct nvkm_device *device = disp->base.engine.subdev.device;
 198         *addr = device->func->resource_addr(device, 0) +
 199                 0x640000 + (chan->chid * 0x1000);
 200         *size = 0x001000;
 201         return 0;
 202 }
 203
 204 static int
 205 nv50_disp_chan_child_new(const struct nvkm_oclass *oclass,
 206                          void *data, u32 size, struct nvkm_object **pobject)
 207 {
 208         struct nv50_disp_chan *chan = nv50_disp_chan(oclass->parent);
 209         return chan->func->child_new(chan, oclass, data, size, pobject);
 210 }
 211
 212 static int
 213 nv50_disp_chan_child_get(struct nvkm_object *object, int index,
 214                          struct nvkm_oclass *oclass)
 215 {
 216         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 217         if (chan->func->child_get) {
 218                 int ret = chan->func->child_get(chan, index, oclass);
 219                 if (ret == 0)
 220                         oclass->ctor = nv50_disp_chan_child_new;
 221                 return ret;
 222         }
 223         return -EINVAL;
 224 }
 225
 226 static int
 227 nv50_disp_chan_fini(struct nvkm_object *object, bool suspend)
 228 {
 229         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 230         chan->func->fini(chan);
 231         return 0;
 232 }
 233
 234 static int
 235 nv50_disp_chan_init(struct nvkm_object *object)
 236 {
 237         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 238         return chan->func->init(chan);
 239 }
 240
 241 static void *
 242 nv50_disp_chan_dtor(struct nvkm_object *object)
 243 {
 244         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 245         struct nv50_disp *disp = chan->root->disp;
 246         if (chan->chid >= 0)
 247                 disp->chan[chan->chid] = NULL;
 248         return chan->func->dtor ? chan->func->dtor(chan) : chan;
 249 }
 250
 251 static const struct nvkm_object_func
 252 nv50_disp_chan = {
 253         .dtor = nv50_disp_chan_dtor,
 254         .init = nv50_disp_chan_init,
 255         .fini = nv50_disp_chan_fini,
 256         .rd32 = nv50_disp_chan_rd32,
 257         .wr32 = nv50_disp_chan_wr32,
 258         .ntfy = nv50_disp_chan_ntfy,
 259         .map = nv50_disp_chan_map,
 260         .sclass = nv50_disp_chan_child_get,
 261 };
 262
 263 int
 264 nv50_disp_chan_ctor(const struct nv50_disp_chan_func *func,
 265                     const struct nv50_disp_chan_mthd *mthd,
 266                     struct nv50_disp_root *root, int chid, int head,
 267                     const struct nvkm_oclass *oclass,
 268                     struct nv50_disp_chan *chan)
 269 {
 270         struct nv50_disp *disp = root->disp;
 271
 272         nvkm_object_ctor(&nv50_disp_chan, oclass, &chan->object);
 273         chan->func = func;
 274         chan->mthd = mthd;
 275         chan->root = root;
 276         chan->chid = chid;
 277         chan->head = head;
 278
 279         if (disp->chan[chan->chid]) {
 280                 chan->chid = -1;
 281                 return -EBUSY;
 282         }
 283         disp->chan[chan->chid] = chan;
 284         return 0;
 285 }
 286
 287 int
 288 nv50_disp_chan_new_(const struct nv50_disp_chan_func *func,
 289                     const struct nv50_disp_chan_mthd *mthd,
 290                     struct nv50_disp_root *root, int chid, int head,
 291                     const struct nvkm_oclass *oclass,
 292                     struct nvkm_object **pobject)
 293 {
 294         struct nv50_disp_chan *chan;
 295
 296         if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
 297                 return -ENOMEM;
 298         *pobject = &chan->object;
 299
 300         return nv50_disp_chan_ctor(func, mthd, root, chid, head, oclass, chan);
 301 }