ion.h revision 89d6c321f8380a461741b820996d92120fa99d9c 
1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _UAPI_LINUX_ION_H
20#define _UAPI_LINUX_ION_H
21#include <linux/ioctl.h>
22#include <linux/types.h>
23enum ion_heap_type {
24  ION_HEAP_TYPE_SYSTEM,
25  ION_HEAP_TYPE_SYSTEM_CONTIG,
26  ION_HEAP_TYPE_CARVEOUT,
27  ION_HEAP_TYPE_CHUNK,
28  ION_HEAP_TYPE_DMA,
29  ION_HEAP_TYPE_CUSTOM,
30};
31#define ION_NUM_HEAP_IDS (sizeof(unsigned int) * 8)
32#define ION_FLAG_CACHED 1
33#define ION_FLAG_CACHED_NEEDS_SYNC 2
34struct ion_allocation_data {
35  __u64 len;
36  __u32 heap_id_mask;
37  __u32 flags;
38  __u32 fd;
39  __u32 unused;
40};
41#define MAX_HEAP_NAME 32
42struct ion_heap_data {
43  char name[MAX_HEAP_NAME];
44  __u32 type;
45  __u32 heap_id;
46  __u32 reserved0;
47  __u32 reserved1;
48  __u32 reserved2;
49};
50struct ion_heap_query {
51  __u32 cnt;
52  __u32 reserved0;
53  __u64 heaps;
54  __u32 reserved1;
55  __u32 reserved2;
56};
57#define ION_IOC_MAGIC 'I'
58#define ION_IOC_ALLOC _IOWR(ION_IOC_MAGIC, 0, struct ion_allocation_data)
59#define ION_IOC_HEAP_QUERY _IOWR(ION_IOC_MAGIC, 8, struct ion_heap_query)
60#endif
61