| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| *** To edit the content of this header, modify the corresponding |
| *** source file (e.g. under external/kernel-headers/original/) then |
| *** run bionic/libc/kernel/tools/update_all.py |
| *** |
| *** Any manual change here will be lost the next time this script will |
| *** be run. You've been warned! |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef _UAPI_LINUX_ION_H |
| #define _UAPI_LINUX_ION_H |
| #include <linux/ioctl.h> |
| #include <linux/types.h> |
| typedef int ion_user_handle_t; |
| enum ion_heap_type { |
| ION_HEAP_TYPE_SYSTEM, |
| ION_HEAP_TYPE_SYSTEM_CONTIG, |
| ION_HEAP_TYPE_CARVEOUT, |
| ION_HEAP_TYPE_CHUNK, |
| ION_HEAP_TYPE_DMA, |
| ION_HEAP_TYPE_CUSTOM, |
| }; |
| #define ION_NUM_HEAP_IDS (sizeof(unsigned int) * 8) |
| #define ION_FLAG_CACHED 1 |
| #define ION_FLAG_CACHED_NEEDS_SYNC 2 |
| struct ion_allocation_data { |
| size_t len; |
| size_t align; |
| unsigned int heap_id_mask; |
| unsigned int flags; |
| ion_user_handle_t handle; |
| }; |
| struct ion_fd_data { |
| ion_user_handle_t handle; |
| int fd; |
| }; |
| struct ion_handle_data { |
| ion_user_handle_t handle; |
| }; |
| struct ion_custom_data { |
| unsigned int cmd; |
| unsigned long arg; |
| }; |
| #define MAX_HEAP_NAME 32 |
| struct ion_heap_data { |
| char name[MAX_HEAP_NAME]; |
| __u32 type; |
| __u32 heap_id; |
| __u32 reserved0; |
| __u32 reserved1; |
| __u32 reserved2; |
| }; |
| struct ion_heap_query { |
| __u32 cnt; |
| __u32 reserved0; |
| __u64 heaps; |
| __u32 reserved1; |
| __u32 reserved2; |
| }; |
| #define ION_IOC_MAGIC 'I' |
| #define ION_IOC_ALLOC _IOWR(ION_IOC_MAGIC, 0, struct ion_allocation_data) |
| #define ION_IOC_FREE _IOWR(ION_IOC_MAGIC, 1, struct ion_handle_data) |
| #define ION_IOC_MAP _IOWR(ION_IOC_MAGIC, 2, struct ion_fd_data) |
| #define ION_IOC_SHARE _IOWR(ION_IOC_MAGIC, 4, struct ion_fd_data) |
| #define ION_IOC_IMPORT _IOWR(ION_IOC_MAGIC, 5, struct ion_fd_data) |
| #define ION_IOC_SYNC _IOWR(ION_IOC_MAGIC, 7, struct ion_fd_data) |
| #define ION_IOC_CUSTOM _IOWR(ION_IOC_MAGIC, 6, struct ion_custom_data) |
| #define ION_IOC_HEAP_QUERY _IOWR(ION_IOC_MAGIC, 8, struct ion_heap_query) |
| #endif |