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      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  ****************************************************************************
     11  ****************************************************************************/
     12 #ifndef _LINUX_ASHMEM_H
     13 #define _LINUX_ASHMEM_H
     14 
     15 #include <linux/limits.h>
     16 #include <linux/ioctl.h>
     17 
     18 #define ASHMEM_NAME_LEN 256
     19 
     20 #define ASHMEM_NAME_DEF "dev/ashmem"
     21 
     22 #define ASHMEM_NOT_PURGED 0
     23 #define ASHMEM_WAS_PURGED 1
     24 
     25 #define ASHMEM_IS_UNPINNED 0
     26 #define ASHMEM_IS_PINNED 1
     27 
     28 struct ashmem_pin {
     29  __u32 offset;
     30  __u32 len;
     31 };
     32 
     33 #define __ASHMEMIOC 0x77
     34 
     35 #define ASHMEM_SET_NAME _IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN])
     36 #define ASHMEM_GET_NAME _IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN])
     37 #define ASHMEM_SET_SIZE _IOW(__ASHMEMIOC, 3, size_t)
     38 #define ASHMEM_GET_SIZE _IO(__ASHMEMIOC, 4)
     39 #define ASHMEM_SET_PROT_MASK _IOW(__ASHMEMIOC, 5, unsigned long)
     40 #define ASHMEM_GET_PROT_MASK _IO(__ASHMEMIOC, 6)
     41 #define ASHMEM_PIN _IOW(__ASHMEMIOC, 7, struct ashmem_pin)
     42 #define ASHMEM_UNPIN _IOW(__ASHMEMIOC, 8, struct ashmem_pin)
     43 #define ASHMEM_GET_PIN_STATUS _IO(__ASHMEMIOC, 9)
     44 #define ASHMEM_PURGE_ALL_CACHES _IO(__ASHMEMIOC, 10)
     45 
     46 #endif
     47