Rev 6110 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6110 | serge | 1 | /* |
| 2 | * Copyright © 2014 NVIDIA Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice shall be included in |
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| 12 | * all copies or substantial portions of the Software. |
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| 13 | * |
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| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
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| 21 | */ |
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| 22 | |||
| 23 | #ifndef LIBDRM_LIBDRM_H |
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| 24 | #define LIBDRM_LIBDRM_H |
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| 25 | |||
| 26 | #if defined(HAVE_VISIBILITY) |
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| 27 | # define drm_private __attribute__((visibility("hidden"))) |
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| 28 | #else |
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| 29 | # define drm_private |
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| 30 | #endif |
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| 31 | |||
| 32 | |||
| 33 | /** |
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| 34 | * Static (compile-time) assertion. |
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| 35 | * Basically, use COND to dimension an array. If COND is false/zero the |
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| 36 | * array size will be -1 and we'll get a compilation error. |
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| 37 | */ |
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| 38 | #define STATIC_ASSERT(COND) \ |
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| 39 | do { \ |
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| 40 | (void) sizeof(char [1 - 2*!(COND)]); \ |
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| 41 | } while (0) |
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| 42 | |||
| 43 | |||
| 44 | |||
| 45 | #if defined(ANDROID) && !defined(__LP64__) |
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| 46 | #include |
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| 47 | |||
| 48 | extern void *__mmap2(void *, size_t, int, int, int, size_t); |
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| 49 | |||
| 50 | static inline void *drm_mmap(void *addr, size_t length, int prot, int flags, |
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| 51 | int fd, loff_t offset) |
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| 52 | { |
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| 53 | /* offset must be aligned to 4096 (not necessarily the page size) */ |
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| 54 | if (offset & 4095) { |
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| 55 | errno = EINVAL; |
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| 56 | return MAP_FAILED; |
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| 57 | } |
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| 58 | |||
| 59 | return __mmap2(addr, length, prot, flags, fd, (size_t) (offset >> 12)); |
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| 60 | } |
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| 61 | |||
| 62 | # define drm_munmap(addr, length) \ |
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| 63 | munmap(addr, length) |
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| 64 | |||
| 65 | |||
| 66 | #else |
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| 67 | |||
| 68 | #endif |
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| 69 | |||
| 70 | #endif |