drivers/gpu/drm/nouveau/nvkm/subdev/bar/gm107.c

   1 /*
   2  * Copyright 2017 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 #include "gf100.h"
  23
  24 #include <subdev/timer.h>
  25
  26 void
  27 gm107_bar_bar1_wait(struct nvkm_bar *bar)
  28 {
  29         struct nvkm_device *device = bar->subdev.device;
  30         nvkm_msec(device, 2000,
  31                 if (!(nvkm_rd32(device, 0x001710) & 0x00000003))
  32                         break;
  33         );
  34 }
  35
  36 static void
  37 gm107_bar_bar2_wait(struct nvkm_bar *bar)
  38 {
  39         struct nvkm_device *device = bar->subdev.device;
  40         nvkm_msec(device, 2000,
  41                 if (!(nvkm_rd32(device, 0x001710) & 0x0000000c))
  42                         break;
  43         );
  44 }
  45
  46 static const struct nvkm_bar_func
  47 gm107_bar_func = {
  48         .dtor = gf100_bar_dtor,
  49         .oneinit = gf100_bar_oneinit,
  50         .bar1.init = gf100_bar_bar1_init,
  51         .bar1.fini = gf100_bar_bar1_fini,
  52         .bar1.wait = gm107_bar_bar1_wait,
  53         .bar1.vmm = gf100_bar_bar1_vmm,
  54         .bar2.init = gf100_bar_bar2_init,
  55         .bar2.fini = gf100_bar_bar2_fini,
  56         .bar2.wait = gm107_bar_bar2_wait,
  57         .bar2.vmm = gf100_bar_bar2_vmm,
  58         .flush = g84_bar_flush,
  59 };
  60
  61 int
  62 gm107_bar_new(struct nvkm_device *device, int index, struct nvkm_bar **pbar)
  63 {
  64         return gf100_bar_new_(&gm107_bar_func, device, index, pbar);
  65 }