linux/drivers/gpu/drm/nouveau/nvkm/subdev/mc/nv44.c
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   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 "priv.h"
  25
  26void
  27nv44_mc_init(struct nvkm_mc *mc)
  28{
  29        struct nvkm_device *device = mc->subdev.device;
  30        u32 tmp = nvkm_rd32(device, 0x10020c);
  31
  32        nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */
  33
  34        nvkm_wr32(device, 0x001700, tmp);
  35        nvkm_wr32(device, 0x001704, 0);
  36        nvkm_wr32(device, 0x001708, 0);
  37        nvkm_wr32(device, 0x00170c, tmp);
  38}
  39
  40static const struct nvkm_mc_func
  41nv44_mc = {
  42        .init = nv44_mc_init,
  43        .intr = nv17_mc_intr,
  44        .intr_unarm = nv04_mc_intr_unarm,
  45        .intr_rearm = nv04_mc_intr_rearm,
  46        .intr_stat = nv04_mc_intr_stat,
  47        .reset = nv17_mc_reset,
  48};
  49
  50int
  51nv44_mc_new(struct nvkm_device *device, int index, struct nvkm_mc **pmc)
  52{
  53        return nvkm_mc_new_(&nv44_mc, device, index, pmc);
  54}
  55