LXR linux/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/cl507d.h>
  32#include <nvif/event.h>
  33#include <nvif/unpack.h>
  34
  35static void
  36nv50_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
  64void
  65nv50_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
 102static void
 103nv50_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
 111static void
 112nv50_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
 120void
 121nv50_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
 129int
 130nv50_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 = -ENOSYS;
 138
 139        if (!(ret = nvif_unvers(ret, &data, &size, 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
 149const struct nvkm_event_func
 150nv50_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
 156int
 157nv50_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
 166int
 167nv50_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
 176int
 177nv50_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
 192int
 193nv50_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
 204static int
 205nv50_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
 212static int
 213nv50_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
 226static int
 227nv50_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
 234static int
 235nv50_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
 241static void *
 242nv50_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
 251static const struct nvkm_object_func
 252nv50_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
 263int
 264nv50_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
 287int
 288nv50_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}
 302