LXR linux/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm200.c

   1/*
   2 * Copyright 2015 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 "gk104.h"
  25#include "changk104.h"
  26
  27#include <nvif/class.h>
  28
  29int
  30gm200_fifo_pbdma_nr(struct gk104_fifo *fifo)
  31{
  32        struct nvkm_device *device = fifo->base.engine.subdev.device;
  33        return nvkm_rd32(device, 0x002004) & 0x000000ff;
  34}
  35
  36const struct gk104_fifo_pbdma_func
  37gm200_fifo_pbdma = {
  38        .nr = gm200_fifo_pbdma_nr,
  39        .init = gk104_fifo_pbdma_init,
  40        .init_timeout = gk208_fifo_pbdma_init_timeout,
  41};
  42
  43static const struct gk104_fifo_func
  44gm200_fifo = {
  45        .intr.fault = gm107_fifo_intr_fault,
  46        .pbdma = &gm200_fifo_pbdma,
  47        .fault.access = gk104_fifo_fault_access,
  48        .fault.engine = gm107_fifo_fault_engine,
  49        .fault.reason = gk104_fifo_fault_reason,
  50        .fault.hubclient = gk104_fifo_fault_hubclient,
  51        .fault.gpcclient = gk104_fifo_fault_gpcclient,
  52        .runlist = &gm107_fifo_runlist,
  53        .chan = {{0,0,MAXWELL_CHANNEL_GPFIFO_A}, gk104_fifo_gpfifo_new },
  54};
  55
  56int
  57gm200_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
  58               struct nvkm_fifo **pfifo)
  59{
  60        return gk104_fifo_new_(&gm200_fifo, device, type, inst, 4096, pfifo);
  61}
  62