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45 lines
1.4 KiB
45 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0 OR Apache-2.0 */ |
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/* |
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* drivers/staging/android/uapi/ashmem.h |
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* |
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* Copyright 2008 Google Inc. |
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* Author: Robert Love |
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*/ |
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#ifndef _UAPI_LINUX_ASHMEM_H |
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#define _UAPI_LINUX_ASHMEM_H |
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#include <linux/ioctl.h> |
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#include <linux/types.h> |
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#define ASHMEM_NAME_LEN 256 |
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#define ASHMEM_NAME_DEF "dev/ashmem" |
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/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */ |
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#define ASHMEM_NOT_PURGED 0 |
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#define ASHMEM_WAS_PURGED 1 |
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/* Return values from ASHMEM_GET_PIN_STATUS: Is the mapping pinned? */ |
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#define ASHMEM_IS_UNPINNED 0 |
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#define ASHMEM_IS_PINNED 1 |
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struct ashmem_pin { |
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__u32 offset; /* offset into region, in bytes, page-aligned */ |
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__u32 len; /* length forward from offset, in bytes, page-aligned */ |
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}; |
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#define __ASHMEMIOC 0x77 |
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#define ASHMEM_SET_NAME _IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN]) |
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#define ASHMEM_GET_NAME _IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN]) |
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#define ASHMEM_SET_SIZE _IOW(__ASHMEMIOC, 3, size_t) |
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#define ASHMEM_GET_SIZE _IO(__ASHMEMIOC, 4) |
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#define ASHMEM_SET_PROT_MASK _IOW(__ASHMEMIOC, 5, unsigned long) |
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#define ASHMEM_GET_PROT_MASK _IO(__ASHMEMIOC, 6) |
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#define ASHMEM_PIN _IOW(__ASHMEMIOC, 7, struct ashmem_pin) |
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#define ASHMEM_UNPIN _IOW(__ASHMEMIOC, 8, struct ashmem_pin) |
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#define ASHMEM_GET_PIN_STATUS _IO(__ASHMEMIOC, 9) |
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#define ASHMEM_PURGE_ALL_CACHES _IO(__ASHMEMIOC, 10) |
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#endif /* _UAPI_LINUX_ASHMEM_H */
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