drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagf110.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/bios.h>
  29 #include <subdev/bios/dcb.h>
  30 #include <subdev/timer.h>
  31
  32 #include <nvif/class.h>
  33 #include <nvif/unpack.h>
  34
  35 int
  36 gf110_hda_eld(NV50_DISP_MTHD_V1)
  37 {
  38         struct nvkm_device *device = disp->base.engine.subdev.device;
  39         union {
  40                 struct nv50_disp_sor_hda_eld_v0 v0;
  41         } *args = data;
  42         const u32 soff = outp->or * 0x030;
  43         const u32 hoff = head * 0x800;
  44         int ret, i;
  45
  46         nv_ioctl(object, "disp sor hda eld size %d\n", size);
  47         if (nvif_unpack(args->v0, 0, 0, true)) {
  48                 nv_ioctl(object, "disp sor hda eld vers %d\n", args->v0.version);
  49                 if (size > 0x60)
  50                         return -E2BIG;
  51         } else
  52                 return ret;
  53
  54         if (size && args->v0.data[0]) {
  55                 if (outp->info.type == DCB_OUTPUT_DP) {
  56                         nvkm_mask(device, 0x616618 + hoff, 0x8000000c, 0x80000001);
  57                         nvkm_msec(device, 2000,
  58                                 u32 tmp = nvkm_rd32(device, 0x616618 + hoff);
  59                                 if (!(tmp & 0x80000000))
  60                                         break;
  61                         );
  62                 }
  63                 nvkm_mask(device, 0x616548 + hoff, 0x00000070, 0x00000000);
  64                 for (i = 0; i < size; i++)
  65                         nvkm_wr32(device, 0x10ec00 + soff, (i << 8) | args->v0.data[i]);
  66                 for (; i < 0x60; i++)
  67                         nvkm_wr32(device, 0x10ec00 + soff, (i << 8));
  68                 nvkm_mask(device, 0x10ec10 + soff, 0x80000003, 0x80000003);
  69         } else {
  70                 if (outp->info.type == DCB_OUTPUT_DP) {
  71                         nvkm_mask(device, 0x616618 + hoff, 0x80000001, 0x80000000);
  72                         nvkm_msec(device, 2000,
  73                                 u32 tmp = nvkm_rd32(device, 0x616618 + hoff);
  74                                 if (!(tmp & 0x80000000))
  75                                         break;
  76                         );
  77                 }
  78                 nvkm_mask(device, 0x10ec10 + soff, 0x80000003, 0x80000000 | !!size);
  79         }
  80
  81         return 0;
  82 }