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         if (!mthd)
  76                 return;
  77
  78         for (i = 0; (list = mthd->data[i].mthd) != NULL; i++) {
  79                 u32 base = chan->head * mthd->addr;
  80                 for (j = 0; j < mthd->data[i].nr; j++, base += list->addr) {
  81                         const char *cname = mthd->name;
  82                         const char *sname = "";
  83                         char cname_[16], sname_[16];
  84
  85                         if (mthd->addr) {
  86                                 snprintf(cname_, sizeof(cname_), "%s %d",
  87                                          mthd->name, chan->chid);
  88                                 cname = cname_;
  89                         }
  90
  91                         if (mthd->data[i].nr > 1) {
  92                                 snprintf(sname_, sizeof(sname_), " - %s %d",
  93                                          mthd->data[i].name, j);
  94                                 sname = sname_;
  95                         }
  96
  97                         nvkm_printk_(subdev, debug, info, "%s%s:\n", cname, sname);
  98                         nv50_disp_mthd_list(disp, debug, base, mthd->prev,
  99                                             list, j);
 100                 }
 101         }
 102 }
 103
 104 static void
 105 nv50_disp_chan_uevent_fini(struct nvkm_event *event, int type, int index)
 106 {
 107         struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
 108         struct nvkm_device *device = disp->base.engine.subdev.device;
 109         nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000000 << index);
 110         nvkm_wr32(device, 0x610020, 0x00000001 << index);
 111 }
 112
 113 static void
 114 nv50_disp_chan_uevent_init(struct nvkm_event *event, int types, int index)
 115 {
 116         struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
 117         struct nvkm_device *device = disp->base.engine.subdev.device;
 118         nvkm_wr32(device, 0x610020, 0x00000001 << index);
 119         nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000001 << index);
 120 }
 121
 122 void
 123 nv50_disp_chan_uevent_send(struct nv50_disp *disp, int chid)
 124 {
 125         struct nvif_notify_uevent_rep {
 126         } rep;
 127
 128         nvkm_event_send(&disp->uevent, 1, chid, &rep, sizeof(rep));
 129 }
 130
 131 int
 132 nv50_disp_chan_uevent_ctor(struct nvkm_object *object, void *data, u32 size,
 133                            struct nvkm_notify *notify)
 134 {
 135         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 136         union {
 137                 struct nvif_notify_uevent_req none;
 138         } *args = data;
 139         int ret;
 140
 141         if (nvif_unvers(args->none)) {
 142                 notify->size  = sizeof(struct nvif_notify_uevent_rep);
 143                 notify->types = 1;
 144                 notify->index = chan->chid;
 145                 return 0;
 146         }
 147
 148         return ret;
 149 }
 150
 151 const struct nvkm_event_func
 152 nv50_disp_chan_uevent = {
 153         .ctor = nv50_disp_chan_uevent_ctor,
 154         .init = nv50_disp_chan_uevent_init,
 155         .fini = nv50_disp_chan_uevent_fini,
 156 };
 157
 158 int
 159 nv50_disp_chan_rd32(struct nvkm_object *object, u64 addr, u32 *data)
 160 {
 161         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 162         struct nv50_disp *disp = chan->root->disp;
 163         struct nvkm_device *device = disp->base.engine.subdev.device;
 164         *data = nvkm_rd32(device, 0x640000 + (chan->chid * 0x1000) + addr);
 165         return 0;
 166 }
 167
 168 int
 169 nv50_disp_chan_wr32(struct nvkm_object *object, u64 addr, u32 data)
 170 {
 171         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 172         struct nv50_disp *disp = chan->root->disp;
 173         struct nvkm_device *device = disp->base.engine.subdev.device;
 174         nvkm_wr32(device, 0x640000 + (chan->chid * 0x1000) + addr, data);
 175         return 0;
 176 }
 177
 178 int
 179 nv50_disp_chan_ntfy(struct nvkm_object *object, u32 type,
 180                     struct nvkm_event **pevent)
 181 {
 182         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 183         struct nv50_disp *disp = chan->root->disp;
 184         switch (type) {
 185         case NV50_DISP_CORE_CHANNEL_DMA_V0_NTFY_UEVENT:
 186                 *pevent = &disp->uevent;
 187                 return 0;
 188         default:
 189                 break;
 190         }
 191         return -EINVAL;
 192 }
 193
 194 int
 195 nv50_disp_chan_map(struct nvkm_object *object, u64 *addr, u32 *size)
 196 {
 197         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 198         struct nv50_disp *disp = chan->root->disp;
 199         struct nvkm_device *device = disp->base.engine.subdev.device;
 200         *addr = device->func->resource_addr(device, 0) +
 201                 0x640000 + (chan->chid * 0x1000);
 202         *size = 0x001000;
 203         return 0;
 204 }
 205
 206 static int
 207 nv50_disp_chan_child_new(const struct nvkm_oclass *oclass,
 208                          void *data, u32 size, struct nvkm_object **pobject)
 209 {
 210         struct nv50_disp_chan *chan = nv50_disp_chan(oclass->parent);
 211         return chan->func->child_new(chan, oclass, data, size, pobject);
 212 }
 213
 214 static int
 215 nv50_disp_chan_child_get(struct nvkm_object *object, int index,
 216                          struct nvkm_oclass *oclass)
 217 {
 218         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 219         if (chan->func->child_get) {
 220                 int ret = chan->func->child_get(chan, index, oclass);
 221                 if (ret == 0)
 222                         oclass->ctor = nv50_disp_chan_child_new;
 223                 return ret;
 224         }
 225         return -EINVAL;
 226 }
 227
 228 static int
 229 nv50_disp_chan_fini(struct nvkm_object *object, bool suspend)
 230 {
 231         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 232         chan->func->fini(chan);
 233         return 0;
 234 }
 235
 236 static int
 237 nv50_disp_chan_init(struct nvkm_object *object)
 238 {
 239         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 240         return chan->func->init(chan);
 241 }
 242
 243 static void *
 244 nv50_disp_chan_dtor(struct nvkm_object *object)
 245 {
 246         struct nv50_disp_chan *chan = nv50_disp_chan(object);
 247         struct nv50_disp *disp = chan->root->disp;
 248         if (chan->chid >= 0)
 249                 disp->chan[chan->chid] = NULL;
 250         return chan->func->dtor ? chan->func->dtor(chan) : chan;
 251 }
 252
 253 static const struct nvkm_object_func
 254 nv50_disp_chan = {
 255         .dtor = nv50_disp_chan_dtor,
 256         .init = nv50_disp_chan_init,
 257         .fini = nv50_disp_chan_fini,
 258         .rd32 = nv50_disp_chan_rd32,
 259         .wr32 = nv50_disp_chan_wr32,
 260         .ntfy = nv50_disp_chan_ntfy,
 261         .map = nv50_disp_chan_map,
 262         .sclass = nv50_disp_chan_child_get,
 263 };
 264
 265 int
 266 nv50_disp_chan_ctor(const struct nv50_disp_chan_func *func,
 267                     const struct nv50_disp_chan_mthd *mthd,
 268                     struct nv50_disp_root *root, int chid, int head,
 269                     const struct nvkm_oclass *oclass,
 270                     struct nv50_disp_chan *chan)
 271 {
 272         struct nv50_disp *disp = root->disp;
 273
 274         nvkm_object_ctor(&nv50_disp_chan, oclass, &chan->object);
 275         chan->func = func;
 276         chan->mthd = mthd;
 277         chan->root = root;
 278         chan->chid = chid;
 279         chan->head = head;
 280
 281         if (disp->chan[chan->chid]) {
 282                 chan->chid = -1;
 283                 return -EBUSY;
 284         }
 285         disp->chan[chan->chid] = chan;
 286         return 0;
 287 }
 288
 289 int
 290 nv50_disp_chan_new_(const struct nv50_disp_chan_func *func,
 291                     const struct nv50_disp_chan_mthd *mthd,
 292                     struct nv50_disp_root *root, int chid, int head,
 293                     const struct nvkm_oclass *oclass,
 294                     struct nvkm_object **pobject)
 295 {
 296         struct nv50_disp_chan *chan;
 297
 298         if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
 299                 return -ENOMEM;
 300         *pobject = &chan->object;
 301
 302         return nv50_disp_chan_ctor(func, mthd, root, chid, head, oclass, chan);
 303 }