drivers/gpu/drm/nouveau/nouveau_platform.h

   1 /*
   2  * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
   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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20  * DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #ifndef __NOUVEAU_PLATFORM_H__
  24 #define __NOUVEAU_PLATFORM_H__
  25
  26 #include "core/device.h"
  27 #include "core/mm.h"
  28
  29 struct reset_control;
  30 struct clk;
  31 struct regulator;
  32 struct iommu_domain;
  33 struct platform_driver;
  34
  35 struct nouveau_platform_gpu {
  36         struct reset_control *rst;
  37         struct clk *clk;
  38         struct clk *clk_pwr;
  39
  40         struct regulator *vdd;
  41
  42         struct {
  43                 /*
  44                  * Protects accesses to mm from subsystems
  45                  */
  46                 struct mutex mutex;
  47
  48                 struct nvkm_mm _mm;
  49                 /*
  50                  * Just points to _mm. We need this to avoid embedding
  51                  * struct nvkm_mm in os.h
  52                  */
  53                 struct nvkm_mm *mm;
  54                 struct iommu_domain *domain;
  55                 unsigned long pgshift;
  56         } iommu;
  57 };
  58
  59 struct nouveau_platform_device {
  60         struct nvkm_device device;
  61
  62         struct nouveau_platform_gpu *gpu;
  63
  64         int gpu_speedo;
  65 };
  66
  67 #define nv_device_to_platform(d)                                               \
  68         container_of(d, struct nouveau_platform_device, device)
  69
  70 extern struct platform_driver nouveau_platform_driver;
  71
  72 #endif