and bitmap_shift_right() functions to linux/bitmap.h
They perform calculation of two bitmaps intersection,
copying the contents of u32 array of bits to bitmap and
logical right shifting of the bits in a bitmap.
Sponsored by: Serenity Cyber Security, LLC
Reviewed by: manu
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D42812
(cherry picked from commit 5ae2e6f913fa1df5f3262255558b76af05409a09)
bitmap_to_arr32() copies contents of bitmap to a uint32_t array of bits
Required by: drm-kmod 5.15-lts
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D39552
checks if the bitmap pointed to by the first argument is a subset of
the bitmap pointed to by the second argument. The function returns one
on success and zero on failure.
MFC after: 1 week
Sponsored by: Mellanox Technologies
This is a simple call to kmallock_array/kfree, therefore include linux/slab.h as
this is where the kmalloc_array/kfree definition is.
Sponsored-by: The FreeBSD Foundation
Reviewed by: hselsasky
Differential Revision: https://reviews.freebsd.org/D24794
bitmap_copy simply copy the bitmaps, no idea why it exists.
bitmap_andnot is similar to bitmap_and but uses !src2.
Sponsored-by: The FreeBSD Foundation
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D24782
- Move all bitmap related functions from bitops.h to bitmap.h, similar
to what Linux does.
- Apply some minor code cleanup and simplifications to optimize the
generated code when using static inline functions.
- Implement the following list of bitmap functions which are needed by
drm-next and ibcore:
- bitmap_find_next_zero_area_off()
- bitmap_find_next_zero_area()
- bitmap_or()
- bitmap_and()
- bitmap_xor()
- Add missing include directives to the qlnxe driver
(davidcs@ has been notified)
MFC after: 1 week
Sponsored by: Mellanox Technologies
