LXR linux/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
  24static void
  25tu102_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
  39static const struct nvkm_mc_func
  40tu102_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
  51int
  52tu102_mc_new(struct nvkm_device *device, int index, struct nvkm_mc **pmc)
  53{
  54        return gp100_mc_new_(&tu102_mc, device, index, pmc);
  55}
  56