Doug Moore 6f309b9d56 log2: move log2 functions from linuxkpi to libkern ... Linux has a header file that defines an ilog2 function and some simple functions/macros that use it: roundup_pow_of_two, is_power_of_2, rounddown_pow_of_two, and order_base_2. This change moves three of those simple functions (all but is_power_of_2) from linuxkpi to libkern. It also deletes a few implementations of these functions that have previously been copied into code for various device drivers, so that they can use the libkern version. The is_power_of_2 macro was not moved because powerof2 in param.h provides almost the same service already (except that they disagree about whether 0 is a power of two). Since the linux definitions of these functions were copied into FreeBSD 11 years ago, linux has improved them, and this change provides those improvements. In particular, a giant table of log values for evaluating ilog2 for constant values is no longer necessary. Reviewed by: alc, markj (previous version) Differential Revision: https://reviews.freebsd.org/D45536 (cherry picked from commit c8b0c33b03ac072413b27bed2bdae2ae27426f3a)		2025-02-10 04:29:23 -06:00
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drm.h
drm_agpsupport.c
drm_atomic.h
drm_auth.c
drm_buffer.c
drm_buffer.h
drm_bufs.c
drm_context.c
drm_core.h
drm_crtc.c
drm_crtc.h
drm_crtc_helper.c
drm_crtc_helper.h
drm_dma.c
drm_dp_helper.c
drm_dp_helper.h
drm_dp_iic_helper.c
drm_drv.c
drm_edid.c
drm_edid.h
drm_edid_modes.h
drm_fb_helper.c
drm_fb_helper.h
drm_fixed.h
drm_fops.c
drm_fourcc.h
drm_gem.c
drm_gem_names.c
drm_gem_names.h
drm_global.c
drm_global.h
drm_hashtab.c
drm_hashtab.h
drm_ioc32.c
drm_ioctl.c
drm_irq.c
drm_linux_list.h
drm_linux_list_sort.c
drm_lock.c
drm_mem_util.h
drm_memory.c
drm_mm.c
drm_mm.h
drm_mode.h
drm_modes.c
drm_os_freebsd.c
drm_os_freebsd.h	log2: move log2 functions from linuxkpi to libkern	2025-02-10 04:29:23 -06:00
drm_pci.c
drm_pciids.h
drm_platform.c
drm_sarea.h
drm_scatter.c
drm_stub.c
drm_sysctl.c
drm_vm.c
drmP.h