drivers/gpu/drm/nouveau/nvkm/engine/gr/base.c

   1 /*
   2  * Copyright 2015 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 <bskeggs@redhat.com>
  23  */
  24 #include "priv.h"
  25
  26 #include <engine/fifo.h>
  27
  28 static bool
  29 nvkm_gr_chsw_load(struct nvkm_engine *engine)
  30 {
  31         struct nvkm_gr *gr = nvkm_gr(engine);
  32         if (gr->func->chsw_load)
  33                 return gr->func->chsw_load(gr);
  34         return false;
  35 }
  36
  37 static void
  38 nvkm_gr_tile(struct nvkm_engine *engine, int region, struct nvkm_fb_tile *tile)
  39 {
  40         struct nvkm_gr *gr = nvkm_gr(engine);
  41         if (gr->func->tile)
  42                 gr->func->tile(gr, region, tile);
  43 }
  44
  45 u64
  46 nvkm_gr_units(struct nvkm_gr *gr)
  47 {
  48         if (gr->func->units)
  49                 return gr->func->units(gr);
  50         return 0;
  51 }
  52
  53 int
  54 nvkm_gr_tlb_flush(struct nvkm_gr *gr)
  55 {
  56         if (gr->func->tlb_flush)
  57                 return gr->func->tlb_flush(gr);
  58         return -ENODEV;
  59 }
  60
  61 static int
  62 nvkm_gr_oclass_get(struct nvkm_oclass *oclass, int index)
  63 {
  64         struct nvkm_gr *gr = nvkm_gr(oclass->engine);
  65         int c = 0;
  66
  67         if (gr->func->object_get) {
  68                 int ret = gr->func->object_get(gr, index, &oclass->base);
  69                 if (oclass->base.oclass)
  70                         return index;
  71                 return ret;
  72         }
  73
  74         while (gr->func->sclass[c].oclass) {
  75                 if (c++ == index) {
  76                         oclass->base = gr->func->sclass[index];
  77                         return index;
  78                 }
  79         }
  80
  81         return c;
  82 }
  83
  84 static int
  85 nvkm_gr_cclass_new(struct nvkm_fifo_chan *chan,
  86                    const struct nvkm_oclass *oclass,
  87                    struct nvkm_object **pobject)
  88 {
  89         struct nvkm_gr *gr = nvkm_gr(oclass->engine);
  90         if (gr->func->chan_new)
  91                 return gr->func->chan_new(gr, chan, oclass, pobject);
  92         return 0;
  93 }
  94
  95 static void
  96 nvkm_gr_intr(struct nvkm_engine *engine)
  97 {
  98         struct nvkm_gr *gr = nvkm_gr(engine);
  99         gr->func->intr(gr);
 100 }
 101
 102 static int
 103 nvkm_gr_oneinit(struct nvkm_engine *engine)
 104 {
 105         struct nvkm_gr *gr = nvkm_gr(engine);
 106         if (gr->func->oneinit)
 107                 return gr->func->oneinit(gr);
 108         return 0;
 109 }
 110
 111 static int
 112 nvkm_gr_init(struct nvkm_engine *engine)
 113 {
 114         struct nvkm_gr *gr = nvkm_gr(engine);
 115         return gr->func->init(gr);
 116 }
 117
 118 static int
 119 nvkm_gr_fini(struct nvkm_engine *engine, bool suspend)
 120 {
 121         struct nvkm_gr *gr = nvkm_gr(engine);
 122         if (gr->func->fini)
 123                 return gr->func->fini(gr, suspend);
 124         return 0;
 125 }
 126
 127 static void *
 128 nvkm_gr_dtor(struct nvkm_engine *engine)
 129 {
 130         struct nvkm_gr *gr = nvkm_gr(engine);
 131         if (gr->func->dtor)
 132                 return gr->func->dtor(gr);
 133         return gr;
 134 }
 135
 136 static const struct nvkm_engine_func
 137 nvkm_gr = {
 138         .dtor = nvkm_gr_dtor,
 139         .oneinit = nvkm_gr_oneinit,
 140         .init = nvkm_gr_init,
 141         .fini = nvkm_gr_fini,
 142         .intr = nvkm_gr_intr,
 143         .tile = nvkm_gr_tile,
 144         .chsw_load = nvkm_gr_chsw_load,
 145         .fifo.cclass = nvkm_gr_cclass_new,
 146         .fifo.sclass = nvkm_gr_oclass_get,
 147 };
 148
 149 int
 150 nvkm_gr_ctor(const struct nvkm_gr_func *func, struct nvkm_device *device,
 151              int index, bool enable, struct nvkm_gr *gr)
 152 {
 153         gr->func = func;
 154         return nvkm_engine_ctor(&nvkm_gr, device, index, enable, &gr->engine);
 155 }