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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2024-11-05 09:43:47 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2024-11-05 09:43:47 +0100 |
| commit | e301aea030d60da760f85f854a82ce788d5cf6e7 (patch) | |
| tree | 0518946973b140be8105fb5b5bc45760675e5d1d /tools/include/uapi/linux/const.h | |
| parent | b04ce1e718bd55302b52d05d6873e233cb3ec7a1 (diff) | |
| parent | 59b723cd2adbac2a34fc8e12c74ae26ae45bf230 (diff) | |
Merge drm/drm-fixes into drm-misc-fixes
Backmerging to get the latest fixes from v6.12-rc6.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'tools/include/uapi/linux/const.h')
| -rw-r--r-- | tools/include/uapi/linux/const.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/const.h b/tools/include/uapi/linux/const.h index a429381e7ca5..e16be0d37746 100644 --- a/tools/include/uapi/linux/const.h +++ b/tools/include/uapi/linux/const.h @@ -28,6 +28,23 @@ #define _BITUL(x) (_UL(1) << (x)) #define _BITULL(x) (_ULL(1) << (x)) +#if !defined(__ASSEMBLY__) +/* + * Missing asm support + * + * __BIT128() would not work in the asm code, as it shifts an + * 'unsigned __init128' data type as direct representation of + * 128 bit constants is not supported in the gcc compiler, as + * they get silently truncated. + * + * TODO: Please revisit this implementation when gcc compiler + * starts representing 128 bit constants directly like long + * and unsigned long etc. Subsequently drop the comment for + * GENMASK_U128() which would then start supporting asm code. + */ +#define _BIT128(x) ((unsigned __int128)(1) << (x)) +#endif + #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (__typeof__(x))(a) - 1) #define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) |