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author | Sean Paul | 2016-02-03 09:52:15 -0600 |
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committer | Sean Paul | 2016-02-03 09:52:15 -0600 |
commit | 870942e56aac024da5e0a621275f6561a4ddab1b (patch) | |
tree | f50e065f5088a40e2a34ae83e2e3ff6ab2e6f625 /libdrm_macros.h | |
parent | bd4d0d244019a72be9ca51ac3e8f35201b271f1b (diff) | |
parent | b38a4b2326c1be5702f5cb73a53c0ed74c12d510 (diff) | |
download | external-libdrm-870942e56aac024da5e0a621275f6561a4ddab1b.tar.gz external-libdrm-870942e56aac024da5e0a621275f6561a4ddab1b.tar.xz external-libdrm-870942e56aac024da5e0a621275f6561a4ddab1b.zip |
Merge tag 'tags/libdrm-2.4.66' into master
Tag libdrm-2.4.66 from git://anongit.freedesktop.org/mesa/drm
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Conflicts:
Android.mk
Makefile.am
configure.ac
freedreno/Android.mk
include/drm/drm_mode.h
intel/Android.mk
libkms/Android.mk
nouveau/Android.mk
radeon/Android.mk
tegra/tegra.c
tests/Makefile.am
xf86drmMode.c
xf86drmMode.h
Change-Id: I3186bde7f196d2f3438c4334591ee2a0c1371c96
Diffstat (limited to 'libdrm_macros.h')
-rw-r--r-- | libdrm_macros.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/libdrm_macros.h b/libdrm_macros.h new file mode 100644 index 00000000..b88fdcef --- /dev/null +++ b/libdrm_macros.h | |||
@@ -0,0 +1,85 @@ | |||
1 | /* | ||
2 | * Copyright © 2014 NVIDIA Corporation | ||
3 | * | ||
4 | * Permission is hereby granted, free of charge, to any person obtaining a | ||
5 | * copy of this software and associated documentation files (the "Software"), | ||
6 | * to deal in the Software without restriction, including without limitation | ||
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
8 | * and/or sell copies of the Software, and to permit persons to whom the | ||
9 | * Software is furnished to do so, subject to the following conditions: | ||
10 | * | ||
11 | * The above copyright notice and this permission notice shall be included in | ||
12 | * all copies or substantial portions of the Software. | ||
13 | * | ||
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | ||
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | ||
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | ||
20 | * OTHER DEALINGS IN THE SOFTWARE. | ||
21 | */ | ||
22 | |||
23 | #ifndef LIBDRM_LIBDRM_H | ||
24 | #define LIBDRM_LIBDRM_H | ||
25 | |||
26 | #if defined(HAVE_VISIBILITY) | ||
27 | # define drm_private __attribute__((visibility("hidden"))) | ||
28 | #else | ||
29 | # define drm_private | ||
30 | #endif | ||
31 | |||
32 | |||
33 | /** | ||
34 | * Static (compile-time) assertion. | ||
35 | * Basically, use COND to dimension an array. If COND is false/zero the | ||
36 | * array size will be -1 and we'll get a compilation error. | ||
37 | */ | ||
38 | #define STATIC_ASSERT(COND) \ | ||
39 | do { \ | ||
40 | (void) sizeof(char [1 - 2*!(COND)]); \ | ||
41 | } while (0) | ||
42 | |||
43 | |||
44 | #include <sys/mman.h> | ||
45 | |||
46 | #if defined(ANDROID) && !defined(__LP64__) | ||
47 | #include <errno.h> /* for EINVAL */ | ||
48 | |||
49 | static inline void *drm_mmap(void *addr, size_t length, int prot, int flags, | ||
50 | int fd, loff_t offset) | ||
51 | { | ||
52 | /* offset must be aligned to 4096 (not necessarily the page size) */ | ||
53 | if (offset & 4095) { | ||
54 | errno = EINVAL; | ||
55 | return MAP_FAILED; | ||
56 | } | ||
57 | |||
58 | return mmap64(addr, length, prot, flags, fd, offset); | ||
59 | } | ||
60 | |||
61 | # define drm_munmap(addr, length) \ | ||
62 | munmap(addr, length) | ||
63 | |||
64 | |||
65 | #else | ||
66 | |||
67 | /* assume large file support exists */ | ||
68 | # define drm_mmap(addr, length, prot, flags, fd, offset) \ | ||
69 | mmap(addr, length, prot, flags, fd, offset) | ||
70 | |||
71 | |||
72 | static inline int drm_munmap(void *addr, size_t length) | ||
73 | { | ||
74 | /* Copied from configure code generated by AC_SYS_LARGEFILE */ | ||
75 | #define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + \ | ||
76 | (((off_t) 1 << 31) << 31)) | ||
77 | STATIC_ASSERT(LARGE_OFF_T % 2147483629 == 721 && | ||
78 | LARGE_OFF_T % 2147483647 == 1); | ||
79 | #undef LARGE_OFF_T | ||
80 | |||
81 | return munmap(addr, length); | ||
82 | } | ||
83 | #endif | ||
84 | |||
85 | #endif | ||