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 _LINUX_ION_H 20 #define _LINUX_ION_H 21 #include <linux/ioctl.h> 22 #include <linux/types.h> 23 enum 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 struct ion_allocation_data { 34 __u64 len; 35 __u32 heap_id_mask; 36 __u32 flags; 37 __u32 fd; 38 __u32 unused; 39 }; 40 #define MAX_HEAP_NAME 32 41 struct ion_heap_data { 42 char name[MAX_HEAP_NAME]; 43 __u32 type; 44 __u32 heap_id; 45 __u32 reserved0; 46 __u32 reserved1; 47 __u32 reserved2; 48 }; 49 struct ion_heap_query { 50 __u32 cnt; 51 __u32 reserved0; 52 __u64 heaps; 53 __u32 reserved1; 54 __u32 reserved2; 55 }; 56 #define ION_IOC_MAGIC 'I' 57 #define ION_IOC_ALLOC _IOWR(ION_IOC_MAGIC, 0, struct ion_allocation_data) 58 #define ION_IOC_HEAP_QUERY _IOWR(ION_IOC_MAGIC, 8, struct ion_heap_query) 59 #endif 60