drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.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 "nv50.h"
  25 #include "outp.h"
  26
  27 #include <core/client.h>
  28 #include <subdev/timer.h>
  29
  30 #include <nvif/class.h>
  31 #include <nvif/unpack.h>
  32
  33 int
  34 gt215_hda_eld(NV50_DISP_MTHD_V1)
  35 {
  36         union {
  37                 struct nv50_disp_sor_hda_eld_v0 v0;
  38         } *args = data;
  39         const u32 soff = outp->or * 0x800;
  40         int ret, i;
  41
  42         nv_ioctl(object, "disp sor hda eld size %d\n", size);
  43         if (nvif_unpack(args->v0, 0, 0, true)) {
  44                 nv_ioctl(object, "disp sor hda eld vers %d\n", args->v0.version);
  45                 if (size > 0x60)
  46                         return -E2BIG;
  47         } else
  48                 return ret;
  49
  50         if (size && args->v0.data[0]) {
  51                 if (outp->info.type == DCB_OUTPUT_DP) {
  52                         nv_mask(priv, 0x61c1e0 + soff, 0x8000000d, 0x80000001);
  53                         nv_wait(priv, 0x61c1e0 + soff, 0x80000000, 0x00000000);
  54                 }
  55                 for (i = 0; i < size; i++)
  56                         nv_wr32(priv, 0x61c440 + soff, (i << 8) | args->v0.data[0]);
  57                 for (; i < 0x60; i++)
  58                         nv_wr32(priv, 0x61c440 + soff, (i << 8));
  59                 nv_mask(priv, 0x61c448 + soff, 0x80000003, 0x80000003);
  60         } else {
  61                 if (outp->info.type == DCB_OUTPUT_DP) {
  62                         nv_mask(priv, 0x61c1e0 + soff, 0x80000001, 0x80000000);
  63                         nv_wait(priv, 0x61c1e0 + soff, 0x80000000, 0x00000000);
  64                 }
  65                 nv_mask(priv, 0x61c448 + soff, 0x80000003, 0x80000000 | !!size);
  66         }
  67
  68         return 0;
  69 }