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 <nvif/class.h>
  28 #include <nvif/event.h>
  29 #include <nvif/unpack.h>
  30
  31 static void
  32 nv50_disp_mthd_list(struct nv50_disp *disp, int debug, u32 base, int c,
  33                     const struct nv50_disp_mthd_list *list, int inst)
  34 {
  35         struct nvkm_subdev *subdev = &disp->base.engine.subdev;
  36         struct nvkm_device *device = subdev->device;
  37         int i;
  38
  39         for (i = 0; list->data[i].mthd; i++) {
  40                 if (list->data[i].addr) {
  41                         u32 next = nvkm_rd32(device, list->data[i].addr + base + 0);
  42                         u32 prev = nvkm_rd32(device, list->data[i].addr + base + c);
  43                         u32 mthd = list->data[i].mthd + (list->mthd * inst);
  44                         const char *name = list->data[i].name;
  45                         char mods[16];
  46
  47                         if (prev != next)
  48                                 snprintf(mods, sizeof(mods), "-> %08x", next);
  49                         else
  50                                 snprintf(mods, sizeof(mods), "%13c", ' ');
  51
  52                         nvkm_printk_(subdev, debug, info,
  53                                      "\t%04x: %08x %s%s%s\n",
  54                                      mthd, prev, mods, name ? " // " : "",
  55                                      name ? name : "");
  56                 }
  57         }
  58 }
  59
  60 void
  61 nv50_disp_mthd_chan(struct nv50_disp *disp, int debug, int head,
  62                     const struct nv50_disp_mthd_chan *chan)
  63 {
  64         struct nvkm_object *object = nv_object(disp);
  65         const struct nv50_disp_impl *impl = (void *)object->oclass;
  66         const struct nv50_disp_mthd_list *list;
  67         struct nvkm_subdev *subdev = &disp->base.engine.subdev;
  68         int i, j;
  69
  70         if (debug > nv_subdev(disp)->debug)
  71                 return;
  72
  73         for (i = 0; (list = chan->data[i].mthd) != NULL; i++) {
  74                 u32 base = head * chan->addr;
  75                 for (j = 0; j < chan->data[i].nr; j++, base += list->addr) {
  76                         const char *cname = chan->name;
  77                         const char *sname = "";
  78                         char cname_[16], sname_[16];
  79
  80                         if (chan->addr) {
  81                                 snprintf(cname_, sizeof(cname_), "%s %d",
  82                                          chan->name, head);
  83                                 cname = cname_;
  84                         }
  85
  86                         if (chan->data[i].nr > 1) {
  87                                 snprintf(sname_, sizeof(sname_), " - %s %d",
  88                                          chan->data[i].name, j);
  89                                 sname = sname_;
  90                         }
  91
  92                         nvkm_printk_(subdev, debug, info, "%s%s:\n", cname, sname);
  93                         nv50_disp_mthd_list(disp, debug, base, impl->mthd.prev,
  94                                             list, j);
  95                 }
  96         }
  97 }
  98
  99 static void
 100 nv50_disp_chan_uevent_fini(struct nvkm_event *event, int type, int index)
 101 {
 102         struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
 103         struct nvkm_device *device = disp->base.engine.subdev.device;
 104         nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000000 << index);
 105         nvkm_wr32(device, 0x610020, 0x00000001 << index);
 106 }
 107
 108 static void
 109 nv50_disp_chan_uevent_init(struct nvkm_event *event, int types, int index)
 110 {
 111         struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
 112         struct nvkm_device *device = disp->base.engine.subdev.device;
 113         nvkm_wr32(device, 0x610020, 0x00000001 << index);
 114         nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000001 << index);
 115 }
 116
 117 void
 118 nv50_disp_chan_uevent_send(struct nv50_disp *disp, int chid)
 119 {
 120         struct nvif_notify_uevent_rep {
 121         } rep;
 122
 123         nvkm_event_send(&disp->uevent, 1, chid, &rep, sizeof(rep));
 124 }
 125
 126 int
 127 nv50_disp_chan_uevent_ctor(struct nvkm_object *object, void *data, u32 size,
 128                            struct nvkm_notify *notify)
 129 {
 130         struct nv50_disp_dmac *dmac = (void *)object;
 131         union {
 132                 struct nvif_notify_uevent_req none;
 133         } *args = data;
 134         int ret;
 135
 136         if (nvif_unvers(args->none)) {
 137                 notify->size  = sizeof(struct nvif_notify_uevent_rep);
 138                 notify->types = 1;
 139                 notify->index = dmac->base.chid;
 140                 return 0;
 141         }
 142
 143         return ret;
 144 }
 145
 146 const struct nvkm_event_func
 147 nv50_disp_chan_uevent = {
 148         .ctor = nv50_disp_chan_uevent_ctor,
 149         .init = nv50_disp_chan_uevent_init,
 150         .fini = nv50_disp_chan_uevent_fini,
 151 };
 152
 153 int
 154 nv50_disp_chan_ntfy(struct nvkm_object *object, u32 type,
 155                     struct nvkm_event **pevent)
 156 {
 157         struct nv50_disp *disp = (void *)object->engine;
 158         switch (type) {
 159         case NV50_DISP_CORE_CHANNEL_DMA_V0_NTFY_UEVENT:
 160                 *pevent = &disp->uevent;
 161                 return 0;
 162         default:
 163                 break;
 164         }
 165         return -EINVAL;
 166 }
 167
 168 int
 169 nv50_disp_chan_map(struct nvkm_object *object, u64 *addr, u32 *size)
 170 {
 171         struct nv50_disp_chan *chan = (void *)object;
 172         *addr = nv_device_resource_start(nv_device(object), 0) +
 173                 0x640000 + (chan->chid * 0x1000);
 174         *size = 0x001000;
 175         return 0;
 176 }
 177
 178 u32
 179 nv50_disp_chan_rd32(struct nvkm_object *object, u64 addr)
 180 {
 181         struct nv50_disp_chan *chan = (void *)object;
 182         struct nvkm_device *device = object->engine->subdev.device;
 183         return nvkm_rd32(device, 0x640000 + (chan->chid * 0x1000) + addr);
 184 }
 185
 186 void
 187 nv50_disp_chan_wr32(struct nvkm_object *object, u64 addr, u32 data)
 188 {
 189         struct nv50_disp_chan *chan = (void *)object;
 190         struct nvkm_device *device = object->engine->subdev.device;
 191         nvkm_wr32(device, 0x640000 + (chan->chid * 0x1000) + addr, data);
 192 }
 193
 194 void
 195 nv50_disp_chan_destroy(struct nv50_disp_chan *chan)
 196 {
 197         struct nv50_disp_root *root = (void *)nv_object(chan)->parent;
 198         root->chan &= ~(1 << chan->chid);
 199         nvkm_namedb_destroy(&chan->base);
 200 }
 201
 202 int
 203 nv50_disp_chan_create_(struct nvkm_object *parent,
 204                        struct nvkm_object *engine,
 205                        struct nvkm_oclass *oclass, int head,
 206                        int length, void **pobject)
 207 {
 208         const struct nv50_disp_chan_impl *impl = (void *)oclass->ofuncs;
 209         struct nv50_disp_root *root = (void *)parent;
 210         struct nv50_disp_chan *chan;
 211         int chid = impl->chid + head;
 212         int ret;
 213
 214         if (root->chan & (1 << chid))
 215                 return -EBUSY;
 216         root->chan |= (1 << chid);
 217
 218         ret = nvkm_namedb_create_(parent, engine, oclass, 0, NULL,
 219                                   (1ULL << NVDEV_ENGINE_DMAOBJ),
 220                                   length, pobject);
 221         chan = *pobject;
 222         if (ret)
 223                 return ret;
 224         chan->chid = chid;
 225
 226         nv_parent(chan)->object_attach = impl->attach;
 227         nv_parent(chan)->object_detach = impl->detach;
 228         return 0;
 229 }