LXR linux/drivers/gpu/drm/nouveau/nvkm/engine/fifo/g84.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 "channv50.h"
  26
  27static void
  28g84_fifo_uevent_fini(struct nvkm_fifo *fifo)
  29{
  30        struct nvkm_device *device = fifo->engine.subdev.device;
  31        nvkm_mask(device, 0x002140, 0x40000000, 0x00000000);
  32}
  33
  34static void
  35g84_fifo_uevent_init(struct nvkm_fifo *fifo)
  36{
  37        struct nvkm_device *device = fifo->engine.subdev.device;
  38        nvkm_mask(device, 0x002140, 0x40000000, 0x40000000);
  39}
  40
  41static const struct nvkm_fifo_func
  42g84_fifo = {
  43        .dtor = nv50_fifo_dtor,
  44        .oneinit = nv50_fifo_oneinit,
  45        .init = nv50_fifo_init,
  46        .intr = nv04_fifo_intr,
  47        .pause = nv04_fifo_pause,
  48        .start = nv04_fifo_start,
  49        .uevent_init = g84_fifo_uevent_init,
  50        .uevent_fini = g84_fifo_uevent_fini,
  51        .chan = {
  52                &g84_fifo_dma_oclass,
  53                &g84_fifo_gpfifo_oclass,
  54                NULL
  55        },
  56};
  57
  58int
  59g84_fifo_new(struct nvkm_device *device, int index, struct nvkm_fifo **pfifo)
  60{
  61        return nv50_fifo_new_(&g84_fifo, device, index, pfifo);
  62}
  63