drivers/gpu/drm/nouveau/nvkm/engine/ce/gk104.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 "priv.h"
  25
  26 #include <nvif/class.h>
  27
  28 void
  29 gk104_ce_intr(struct nvkm_engine *ce)
  30 {
  31         const u32 base = (ce->subdev.index - NVKM_ENGINE_CE0) * 0x1000;
  32         struct nvkm_subdev *subdev = &ce->subdev;
  33         struct nvkm_device *device = subdev->device;
  34         u32 stat = nvkm_rd32(device, 0x104908 + base);
  35         if (stat) {
  36                 nvkm_warn(subdev, "intr %08x\n", stat);
  37                 nvkm_wr32(device, 0x104908 + base, stat);
  38         }
  39 }
  40
  41 static const struct nvkm_engine_func
  42 gk104_ce = {
  43         .intr = gk104_ce_intr,
  44         .sclass = {
  45                 { -1, -1, KEPLER_DMA_COPY_A },
  46                 {}
  47         }
  48 };
  49
  50 int
  51 gk104_ce_new(struct nvkm_device *device, int index,
  52              struct nvkm_engine **pengine)
  53 {
  54         if (index == NVKM_ENGINE_CE0) {
  55                 return nvkm_engine_new_(&gk104_ce, device, index,
  56                                         0x00000040, true, pengine);
  57         } else
  58         if (index == NVKM_ENGINE_CE1) {
  59                 return nvkm_engine_new_(&gk104_ce, device, index,
  60                                         0x00000080, true, pengine);
  61         } else
  62         if (index == NVKM_ENGINE_CE2) {
  63                 return nvkm_engine_new_(&gk104_ce, device, index,
  64                                         0x00200000, true, pengine);
  65         }
  66         return -ENODEV;
  67 }