3 Commits

Author	SHA1	Message	Date
Andrew Jones	a6e5f8878c	sbi: Introduce sbi_hartmask_weight ... Provide a function to count the number of set bits in a hartmask, which builds on a new function for the same that operates on a bitmask. While at it, improve the performance of sbi_popcount() which is used in the implementation. Signed-off-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20250314163021.154530-5-ajones@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>	2025-04-14 15:29:19 +05:30
Cheng Yang	67ce5a763c	platform: generic: Add support for specify coldboot harts in DT ... Added support for the generic platform to specify the set of coldboot hart in DT. If not specified in DT, all harts are allowed to coldboot as before. The functions related to sbi_hartmask are not available before coldboot, so I used bitmap, and added a new bitmap_test() function to test whether a certain bit of the bitmap is set. Signed-off-by: Cheng Yang <yangcheng.work@foxmail.com> Reviewed-by: Anup Patel <anup@brainfault.org>	2024-02-20 15:49:36 +05:30
Anup Patel	3226bd93ce	lib: Simple bitmap library ... We add simple bitmap library which will help us create and maintain bitmaps. It will also help us create a simple HART mask library. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>	2020-03-11 15:29:45 +05:30