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
73