drivers/gpu/drm/nouveau/nvkm/subdev/mc/tu102.c

   1 /*
   2  * Copyright 2018 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 "priv.h"
  23
  24 static void
  25 tu102_mc_intr_hack(struct nvkm_mc *mc, bool *handled)
  26 {
  27         struct nvkm_device *device = mc->subdev.device;
  28         u32 stat = nvkm_rd32(device, 0xb81010);
  29         if (stat & 0x00000050) {
  30                 struct nvkm_subdev *subdev =
  31                         nvkm_device_subdev(device, NVKM_SUBDEV_FAULT);
  32                 nvkm_wr32(device, 0xb81010, stat & 0x00000050);
  33                 if (subdev)
  34                         nvkm_subdev_intr(subdev);
  35                 *handled = true;
  36         }
  37 }
  38
  39 static const struct nvkm_mc_func
  40 tu102_mc = {
  41         .init = nv50_mc_init,
  42         .intr = gp100_mc_intr,
  43         .intr_unarm = gp100_mc_intr_unarm,
  44         .intr_rearm = gp100_mc_intr_rearm,
  45         .intr_mask = gp100_mc_intr_mask,
  46         .intr_stat = gf100_mc_intr_stat,
  47         .intr_hack = tu102_mc_intr_hack,
  48         .reset = gk104_mc_reset,
  49 };
  50
  51 int
  52 tu102_mc_new(struct nvkm_device *device, int index, struct nvkm_mc **pmc)
  53 {
  54         return gp100_mc_new_(&tu102_mc, device, index, pmc);
  55 }