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 void
  29 nvkm_gr_tile(struct nvkm_engine *engine, int region, struct nvkm_fb_tile *tile)
  30 {
  31         struct nvkm_gr *gr = nvkm_gr(engine);
  32         if (gr->func->tile)
  33                 gr->func->tile(gr, region, tile);
  34 }
  35
  36 u64
  37 nvkm_gr_units(struct nvkm_gr *gr)
  38 {
  39         if (gr->func->units)
  40                 return gr->func->units(gr);
  41         return 0;
  42 }
  43
  44 int
  45 nvkm_gr_tlb_flush(struct nvkm_gr *gr)
  46 {
  47         if (gr->func->tlb_flush)
  48                 return gr->func->tlb_flush(gr);
  49         return -ENODEV;
  50 }
  51
  52 static int
  53 nvkm_gr_oclass_get(struct nvkm_oclass *oclass, int index)
  54 {
  55         struct nvkm_gr *gr = nvkm_gr(oclass->engine);
  56         int c = 0;
  57
  58         if (gr->func->object_get) {
  59                 int ret = gr->func->object_get(gr, index, &oclass->base);
  60                 if (oclass->base.oclass)
  61                         return index;
  62                 return ret;
  63         }
  64
  65         while (gr->func->sclass[c].oclass) {
  66                 if (c++ == index) {
  67                         oclass->base = gr->func->sclass[index];
  68                         return index;
  69                 }
  70         }
  71
  72         return c;
  73 }
  74
  75 static int
  76 nvkm_gr_cclass_new(struct nvkm_fifo_chan *chan,
  77                    const struct nvkm_oclass *oclass,
  78                    struct nvkm_object **pobject)
  79 {
  80         struct nvkm_gr *gr = nvkm_gr(oclass->engine);
  81         if (gr->func->chan_new)
  82                 return gr->func->chan_new(gr, chan, oclass, pobject);
  83         return 0;
  84 }
  85
  86 static void
  87 nvkm_gr_intr(struct nvkm_engine *engine)
  88 {
  89         struct nvkm_gr *gr = nvkm_gr(engine);
  90         gr->func->intr(gr);
  91 }
  92
  93 static int
  94 nvkm_gr_oneinit(struct nvkm_engine *engine)
  95 {
  96         struct nvkm_gr *gr = nvkm_gr(engine);
  97         if (gr->func->oneinit)
  98                 return gr->func->oneinit(gr);
  99         return 0;
 100 }
 101
 102 static int
 103 nvkm_gr_init(struct nvkm_engine *engine)
 104 {
 105         struct nvkm_gr *gr = nvkm_gr(engine);
 106         return gr->func->init(gr);
 107 }
 108
 109 static void *
 110 nvkm_gr_dtor(struct nvkm_engine *engine)
 111 {
 112         struct nvkm_gr *gr = nvkm_gr(engine);
 113         if (gr->func->dtor)
 114                 return gr->func->dtor(gr);
 115         return gr;
 116 }
 117
 118 static const struct nvkm_engine_func
 119 nvkm_gr = {
 120         .dtor = nvkm_gr_dtor,
 121         .oneinit = nvkm_gr_oneinit,
 122         .init = nvkm_gr_init,
 123         .intr = nvkm_gr_intr,
 124         .tile = nvkm_gr_tile,
 125         .fifo.cclass = nvkm_gr_cclass_new,
 126         .fifo.sclass = nvkm_gr_oclass_get,
 127 };
 128
 129 int
 130 nvkm_gr_ctor(const struct nvkm_gr_func *func, struct nvkm_device *device,
 131              int index, u32 pmc_enable, bool enable, struct nvkm_gr *gr)
 132 {
 133         gr->func = func;
 134         return nvkm_engine_ctor(&nvkm_gr, device, index, pmc_enable,
 135                                 enable, &gr->engine);
 136 }