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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:12 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:12 +0000 |
commit | 8665bd53f2f2e27e5511d90428cb3f60e6d0ce15 (patch) | |
tree | 8d58900dc0ebd4a3011f92c128d2fe45bc7c4bf2 /drivers/gpu/drm/xe/xe_rtp_helpers.h | |
parent | Adding debian version 6.7.12-1. (diff) | |
download | linux-8665bd53f2f2e27e5511d90428cb3f60e6d0ce15.tar.xz linux-8665bd53f2f2e27e5511d90428cb3f60e6d0ce15.zip |
Merging upstream version 6.8.9.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_rtp_helpers.h')
-rw-r--r-- | drivers/gpu/drm/xe/xe_rtp_helpers.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_rtp_helpers.h b/drivers/gpu/drm/xe/xe_rtp_helpers.h new file mode 100644 index 0000000000..181b6290fa --- /dev/null +++ b/drivers/gpu/drm/xe/xe_rtp_helpers.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2023 Intel Corporation + */ + +#ifndef _XE_RTP_HELPERS_ +#define _XE_RTP_HELPERS_ + +#ifndef _XE_RTP_INCLUDE_PRIVATE_HELPERS +#error "This header is supposed to be included by xe_rtp.h only" +#endif + +/* + * Helper macros - not to be used outside this header. + */ +#define _XE_ESC(...) __VA_ARGS__ +#define _XE_COUNT_ARGS(...) _XE_ESC(__XE_COUNT_ARGS(__VA_ARGS__, 5, 4, 3, 2, 1,)) +#define __XE_COUNT_ARGS(_, _5, _4, _3, _2, X_, ...) X_ + +#define _XE_FIRST(...) _XE_ESC(__XE_FIRST(__VA_ARGS__,)) +#define __XE_FIRST(x_, ...) x_ +#define _XE_TUPLE_TAIL(...) _XE_ESC(__XE_TUPLE_TAIL(__VA_ARGS__)) +#define __XE_TUPLE_TAIL(x_, ...) (__VA_ARGS__) + +#define _XE_DROP_FIRST(x_, ...) __VA_ARGS__ + +#define _XE_RTP_CONCAT(a, b) __XE_RTP_CONCAT(a, b) +#define __XE_RTP_CONCAT(a, b) XE_RTP_ ## a ## b + +#define __XE_RTP_PASTE_SEP_COMMA , +#define __XE_RTP_PASTE_SEP_BITWISE_OR | + +/* + * XE_RTP_PASTE_FOREACH - Paste XE_RTP_<@prefix_> on each element of the tuple + * @args, with the end result separated by @sep_. @sep must be one of the + * previously declared macros __XE_RTP_PASTE_SEP_*, or declared with such + * prefix. + * + * Examples: + * + * 1) XE_RTP_PASTE_FOREACH(TEST_, COMMA, (FOO, BAR)) + * expands to: + * + * XE_RTP_TEST_FOO , XE_RTP_TEST_BAR + * + * 2) XE_RTP_PASTE_FOREACH(TEST2_, COMMA, (FOO)) + * expands to: + * + * XE_RTP_TEST2_FOO + * + * 3) XE_RTP_PASTE_FOREACH(TEST3, BITWISE_OR, (FOO, BAR)) + * expands to: + * + * XE_RTP_TEST3_FOO | XE_RTP_TEST3_BAR + * + * 4) #define __XE_RTP_PASTE_SEP_MY_SEP BANANA + * XE_RTP_PASTE_FOREACH(TEST_, MY_SEP, (FOO, BAR)) + * expands to: + * + * XE_RTP_TEST_FOO BANANA XE_RTP_TEST_BAR + */ +#define XE_RTP_PASTE_FOREACH(prefix_, sep_, args_) _XE_ESC(_XE_RTP_CONCAT(PASTE_, _XE_COUNT_ARGS args_)(prefix_, sep_, args_)) +#define XE_RTP_PASTE_1(prefix_, sep_, args_) _XE_RTP_CONCAT(prefix_, _XE_FIRST args_) +#define XE_RTP_PASTE_2(prefix_, sep_, args_) _XE_RTP_CONCAT(prefix_, _XE_FIRST args_) __XE_RTP_PASTE_SEP_ ## sep_ XE_RTP_PASTE_1(prefix_, sep_, _XE_TUPLE_TAIL args_) +#define XE_RTP_PASTE_3(prefix_, sep_, args_) _XE_RTP_CONCAT(prefix_, _XE_FIRST args_) __XE_RTP_PASTE_SEP_ ## sep_ XE_RTP_PASTE_2(prefix_, sep_, _XE_TUPLE_TAIL args_) +#define XE_RTP_PASTE_4(prefix_, sep_, args_) _XE_RTP_CONCAT(prefix_, _XE_FIRST args_) __XE_RTP_PASTE_SEP_ ## sep_ XE_RTP_PASTE_3(prefix_, sep_, _XE_TUPLE_TAIL args_) + +/* + * XE_RTP_DROP_CAST - Drop cast to convert a compound statement to a initializer + * + * Example: + * + * #define foo(a_) ((struct foo){ .a = a_ }) + * XE_RTP_DROP_CAST(foo(10)) + * expands to: + * + * { .a = 10 } + */ +#define XE_RTP_DROP_CAST(...) _XE_ESC(_XE_DROP_FIRST _XE_ESC __VA_ARGS__) + +#endif |