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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-04-07 13:47:40 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-04-07 14:35:48 +0200 |
| commit | 1afba39f9305fe4061a4e70baa6ebab9d41459da (patch) | |
| tree | 67e7ed686bd75adc559025870151c4de6d649ced /tools/lib/bitmap.c | |
| parent | fbe43810d563a293e3de301141d33caf1f5d5c5a (diff) | |
| parent | 0af2f6be1b4281385b618cb86ad946eded089ac8 (diff) | |
Merge drm/drm-next into drm-misc-next
Backmerging to get v6.15-rc1 into drm-misc-next. Also fixes a
build issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'tools/lib/bitmap.c')
| -rw-r--r-- | tools/lib/bitmap.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tools/lib/bitmap.c b/tools/lib/bitmap.c index 2178862bb114..51255c69754d 100644 --- a/tools/lib/bitmap.c +++ b/tools/lib/bitmap.c @@ -101,6 +101,26 @@ bool __bitmap_intersects(const unsigned long *bitmap1, return false; } +void __bitmap_set(unsigned long *map, unsigned int start, int len) +{ + unsigned long *p = map + BIT_WORD(start); + const unsigned int size = start + len; + int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG); + unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start); + + while (len - bits_to_set >= 0) { + *p |= mask_to_set; + len -= bits_to_set; + bits_to_set = BITS_PER_LONG; + mask_to_set = ~0UL; + p++; + } + if (len) { + mask_to_set &= BITMAP_LAST_WORD_MASK(size); + *p |= mask_to_set; + } +} + void __bitmap_clear(unsigned long *map, unsigned int start, int len) { unsigned long *p = map + BIT_WORD(start); |