1 #ifndef _UAPI_MSM_ION_H
2 #define _UAPI_MSM_ION_H
3 
4 #include "ion.h"
5 
6 enum msm_ion_heap_types {
7 	ION_HEAP_TYPE_MSM_START = ION_HEAP_TYPE_CUSTOM + 1,
8 	ION_HEAP_TYPE_DMA = ION_HEAP_TYPE_MSM_START,
9 	ION_HEAP_TYPE_SECURE_DMA,
10 	ION_HEAP_TYPE_REMOVED,
11 	/*
12 	 * if you add a heap type here you should also add it to
13 	 * heap_types_info[] in msm_ion.c
14 	 */
15 };
16 
17 /**
18  * These are the only ids that should be used for Ion heap ids.
19  * The ids listed are the order in which allocation will be attempted
20  * if specified. Don't swap the order of heap ids unless you know what
21  * you are doing!
22  * Id's are spaced by purpose to allow new Id's to be inserted in-between (for
23  * possible fallbacks)
24  */
25 
26 enum ion_heap_ids {
27 	INVALID_HEAP_ID = -1,
28 	ION_CP_MM_HEAP_ID = 8,
29 	ION_CP_MFC_HEAP_ID = 12,
30 	ION_CP_WB_HEAP_ID = 16, /* 8660 only */
31 	ION_CAMERA_HEAP_ID = 20, /* 8660 only */
32 	ION_SYSTEM_CONTIG_HEAP_ID = 21,
33 	ION_ADSP_HEAP_ID = 22,
34 	ION_PIL1_HEAP_ID = 23, /* Currently used for other PIL images */
35 	ION_SF_HEAP_ID = 24,
36 	ION_SYSTEM_HEAP_ID = 25,
37 	ION_PIL2_HEAP_ID = 26, /* Currently used for modem firmware images */
38 	ION_QSECOM_HEAP_ID = 27,
39 	ION_AUDIO_HEAP_ID = 28,
40 
41 	ION_MM_FIRMWARE_HEAP_ID = 29,
42 
43 	ION_HEAP_ID_RESERVED = 31 /** Bit reserved for ION_FLAG_SECURE flag */
44 };
45 
46 /*
47  * The IOMMU heap is deprecated! Here are some aliases for backwards
48  * compatibility:
49  */
50 #define ION_IOMMU_HEAP_ID ION_SYSTEM_HEAP_ID
51 #define ION_HEAP_TYPE_IOMMU ION_HEAP_TYPE_SYSTEM
52 
53 enum ion_fixed_position {
54 	NOT_FIXED,
55 	FIXED_LOW,
56 	FIXED_MIDDLE,
57 	FIXED_HIGH,
58 };
59 
60 enum cp_mem_usage {
61 	VIDEO_BITSTREAM = 0x1,
62 	VIDEO_PIXEL = 0x2,
63 	VIDEO_NONPIXEL = 0x3,
64 	DISPLAY_SECURE_CP_USAGE = 0x4,
65 	CAMERA_SECURE_CP_USAGE = 0x5,
66 	MAX_USAGE = 0x6,
67 	UNKNOWN = 0x7FFFFFFF,
68 };
69 
70 #define ION_HEAP_TYPE_DMA_MASK         (1 << ION_HEAP_TYPE_DMA)
71 
72 /**
73  * Flag to use when allocating to indicate that a heap is secure.
74  */
75 #define ION_FLAG_SECURE (1 << ION_HEAP_ID_RESERVED)
76 
77 /**
78  * Flag for clients to force contiguous memort allocation
79  *
80  * Use of this flag is carefully monitored!
81  */
82 #define ION_FLAG_FORCE_CONTIGUOUS (1 << 30)
83 
84 /*
85  * Used in conjunction with heap which pool memory to force an allocation
86  * to come from the page allocator directly instead of from the pool allocation
87  */
88 #define ION_FLAG_POOL_FORCE_ALLOC (1 << 16)
89 
90 /**
91 * Deprecated! Please use the corresponding ION_FLAG_*
92 */
93 #define ION_SECURE ION_FLAG_SECURE
94 #define ION_FORCE_CONTIGUOUS ION_FLAG_FORCE_CONTIGUOUS
95 
96 /**
97  * Macro should be used with ion_heap_ids defined above.
98  */
99 #define ION_HEAP(bit) (1 << (bit))
100 
101 #define ION_ADSP_HEAP_NAME	"adsp"
102 #define ION_SYSTEM_HEAP_NAME	"system"
103 #define ION_VMALLOC_HEAP_NAME	ION_SYSTEM_HEAP_NAME
104 #define ION_KMALLOC_HEAP_NAME	"kmalloc"
105 #define ION_AUDIO_HEAP_NAME	"audio"
106 #define ION_SF_HEAP_NAME	"sf"
107 #define ION_MM_HEAP_NAME	"mm"
108 #define ION_CAMERA_HEAP_NAME	"camera_preview"
109 #define ION_IOMMU_HEAP_NAME	"iommu"
110 #define ION_MFC_HEAP_NAME	"mfc"
111 #define ION_WB_HEAP_NAME	"wb"
112 #define ION_MM_FIRMWARE_HEAP_NAME	"mm_fw"
113 #define ION_PIL1_HEAP_NAME  "pil_1"
114 #define ION_PIL2_HEAP_NAME  "pil_2"
115 #define ION_QSECOM_HEAP_NAME	"qsecom"
116 
117 #define ION_SET_CACHED(__cache)		(__cache | ION_FLAG_CACHED)
118 #define ION_SET_UNCACHED(__cache)	(__cache & ~ION_FLAG_CACHED)
119 
120 #define ION_IS_CACHED(__flags)	((__flags) & ION_FLAG_CACHED)
121 
122 /* struct ion_flush_data - data passed to ion for flushing caches
123  *
124  * @handle:	handle with data to flush
125  * @fd:		fd to flush
126  * @vaddr:	userspace virtual address mapped with mmap
127  * @offset:	offset into the handle to flush
128  * @length:	length of handle to flush
129  *
130  * Performs cache operations on the handle. If p is the start address
131  * of the handle, p + offset through p + offset + length will have
132  * the cache operations performed
133  */
134 struct ion_flush_data {
135 	ion_user_handle_t handle;
136 	int fd;
137 	void *vaddr;
138 	unsigned int offset;
139 	unsigned int length;
140 };
141 
142 
143 struct ion_prefetch_data {
144 	int heap_id;
145 	unsigned long len;
146 };
147 
148 #define ION_IOC_MSM_MAGIC 'M'
149 
150 /**
151  * DOC: ION_IOC_CLEAN_CACHES - clean the caches
152  *
153  * Clean the caches of the handle specified.
154  */
155 #define ION_IOC_CLEAN_CACHES	_IOWR(ION_IOC_MSM_MAGIC, 0, \
156 						struct ion_flush_data)
157 /**
158  * DOC: ION_IOC_INV_CACHES - invalidate the caches
159  *
160  * Invalidate the caches of the handle specified.
161  */
162 #define ION_IOC_INV_CACHES	_IOWR(ION_IOC_MSM_MAGIC, 1, \
163 						struct ion_flush_data)
164 /**
165  * DOC: ION_IOC_CLEAN_INV_CACHES - clean and invalidate the caches
166  *
167  * Clean and invalidate the caches of the handle specified.
168  */
169 #define ION_IOC_CLEAN_INV_CACHES	_IOWR(ION_IOC_MSM_MAGIC, 2, \
170 						struct ion_flush_data)
171 
172 #define ION_IOC_PREFETCH		_IOWR(ION_IOC_MSM_MAGIC, 3, \
173 						struct ion_prefetch_data)
174 
175 #define ION_IOC_DRAIN			_IOWR(ION_IOC_MSM_MAGIC, 4, \
176 						struct ion_prefetch_data)
177 
178 #endif
179