Yu-Chien Peter Lin ff7d245b86 include: sbi_bitmap: add bitmap_empty() function ...

Add bitmap_empty() to check if bitmap has no bits set.

Unlike bitmap_weight() which calls sbi_popcount() on every word,
bitmap_empty() uses simple non-zero comparisons with early exit.

Signed-off-by: Yu-Chien Peter Lin <peter.lin@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260311125116.1401002-1-peter.lin@sifive.com
Signed-off-by: Anup Patel <anup@brainfault.org>

2026-04-08 17:58:05 +05:30

..

fw_dynamic.h

lib: sbi: Simplify structure member offset checking

2025-04-15 11:26:36 +05:30

riscv_asm.h

include: riscv_asm: Optimize csr_xyz() macros to reduce stack usage

2025-12-27 11:21:27 +05:30

riscv_atomic.h

lib: sbi: Fix __atomic_op_bit_ord and comments

2023-12-08 13:47:31 +05:30

riscv_barrier.h

lib: sbi: Simplify wait_for_coldboot() implementation

2024-04-05 17:48:23 +05:30

riscv_dbtr.h

dbtr: Add support for icount trigger type

2025-08-28 10:36:52 +05:30

riscv_elf.h

firmware: Remove handling of R_RISCV_{32,64}

2023-10-06 09:21:23 +05:30

riscv_encoding.h

firmware: Initialize stack guard via Zkr

2026-02-20 11:23:13 +05:30

riscv_fp.h

lib: sbi: Enhance CSR Handling in system_opcode_insn

2024-08-23 13:36:49 +05:30

riscv_io.h

all: run clang-format and update checked-in files

2019-04-24 09:49:46 +05:30

riscv_locks.h

lib: sbi: Have spinlock checks return bool

2021-05-14 17:05:20 +05:30

sbi_bitmap.h

include: sbi_bitmap: add bitmap_empty() function

2026-04-08 17:58:05 +05:30

sbi_bitops.h

sbi: Introduce sbi_hartmask_weight

2025-04-14 15:29:19 +05:30

sbi_byteorder.h

include: sbi: fix swap errors with newer gcc -Werror=sequence-point

2025-07-20 21:15:10 +05:30

sbi_console.h

lib: sbi: Remove sbi_console_init() and console_init() platform callback

2024-07-24 12:18:33 +05:30

sbi_const.h

include: headers: Replace __ASSEMBLY__ with __ASSEMBLER__

2021-03-22 16:02:48 +05:30

sbi_cppc.h

lib: sbi: Implement SBI CPPC extension

2023-04-07 09:36:01 +05:30

sbi_csr_detect.h

lib: sbi: Remove redundant call to sbi_hart_expected_trap_addr()

2025-07-20 20:54:34 +05:30

sbi_dbtr.h

lib: sbi: dbtr: Fix update_triggers to match SBI

2025-06-16 17:01:52 +05:30

sbi_domain_context.h

lib: sbi_domain: Use domain data support for per-domain hart context

2024-10-25 23:00:10 +05:30

sbi_domain_data.h

lib: sbi: Introduce domain data

2024-10-25 23:00:07 +05:30

sbi_domain.h

include: sbi: Fix illegal shift in sbi_domain.h

2026-03-09 12:11:24 +05:30

sbi_double_trap.h

lib: sbi: move sbi_double_trap_handler() to a dedicated header

2025-01-30 10:32:18 +05:30

sbi_ecall_interface.h

lib: sbi: Fix undefined behavior in signed shifts in sbi_hart.c

2026-03-09 12:13:20 +05:30

sbi_ecall.h

include: sbi: Change SBI spec version to 3.0

2025-05-20 13:47:34 +05:30

sbi_emulate_csr.h

lib: sbi_emulate_csr: Remove scratch and hartid parameter

2020-03-28 13:32:07 +05:30

sbi_error.h

include: sbi: Add SBI_ERR_DENIED_LOCKED

2025-02-19 22:10:59 +05:30

sbi_fifo.h

include: sbi: Add macros to create FIFO as local or global variable

2024-07-24 12:18:39 +05:30

sbi_fwft.h

lib: sbi: add support for firmware features extension

2024-06-19 18:09:22 +05:30

sbi_hart_pmp.h

lib: sbi_hart_pmp: make sbi_hart_pmp_fence public

2025-12-21 20:33:16 +05:30

sbi_hart_protection.h

lib: sbi: Introduce hart protection abstraction

2025-12-16 20:16:47 +05:30

sbi_hart.h

lib: sbi: Factor-out PMP programming into separate sources

2025-12-16 20:16:47 +05:30

sbi_hartmask.h

sbi: Introduce sbi_hartmask_weight

2025-04-14 15:29:19 +05:30

sbi_heap.h

lib: sbi: Implement aligned memory allocators

2024-08-09 08:51:27 +05:30

sbi_hfence.h

lib: sbi: Fix GPA passed to __sbi_hfence_gvma_xyz() functions

2021-11-02 16:02:08 +05:30

sbi_hsm.h

lib: sbi: Add optional resume address to hart suspend

2024-12-06 09:26:35 +05:30

sbi_illegal_atomic.h

lib: Emulate AMO instructions when Zaamo is not available

2025-05-20 09:18:03 +05:30

sbi_illegal_insn.h

lib: Emulate AMO instructions when Zaamo is not available

2025-05-20 09:18:03 +05:30

sbi_init.h

lib: sbi: Revert entry_count before doing hsm stop in hsm wait loop

2025-06-16 09:40:28 +05:30

sbi_ipi.h

lib: sbi: Extends sbi_ipi_raw_send() to use all available IPI devices

2025-10-28 11:28:01 +05:30

sbi_irqchip.h

lib: sbi_irqchip: Allow registering interrupt handlers

2026-03-22 10:55:58 +05:30

sbi_list.h

lib: sbi_list: Add a helper for reverse list iteration

2025-09-01 10:39:11 +05:30

sbi_math.h

lib: Create a separate math helper function file

2020-05-10 09:59:24 +05:30

sbi_mpxy.h

lib: sbi: Update MPXY framework and SBI extension as per latest spec

2025-02-13 11:10:03 +05:30

sbi_platform.h

lib: sbi: give platform choice of using single memregion to cover OpenSBI

2025-12-21 20:33:23 +05:30

sbi_pmu.h

lib: sbi_pmu: Add FW counter index validation when reading high bits on RV64

2026-02-21 10:20:41 +05:30

sbi_scratch.h

include: sbi_scratch: fix typo sbi_scratch -> HART id

2026-01-08 12:40:32 +05:30

sbi_slist.h

include: lib: add a simple singly linked list implementation

2025-01-30 10:35:46 +05:30

sbi_sse.h

lib: sbi: sse: allow adding new events

2025-01-30 10:40:49 +05:30

sbi_string.h

lib: Add sbi_strncmp implementation

2020-07-29 12:03:45 +05:30

sbi_system.h

lib: sbi: Add system_resume callback for restoring the system

2025-10-28 11:28:09 +05:30

sbi_timer.h

lib: sbi_timer: Call driver warm_init from SBI core

2024-11-05 17:29:13 +05:30

sbi_tlb.h

lib: sbi: Expose __sbi_sfence_vma_all() function

2025-12-16 20:19:21 +05:30

sbi_trap_ldst.h

lib: sbi: move sbi_double_trap_handler() to a dedicated header

2025-01-30 10:32:18 +05:30

sbi_trap.h

include: sbi: Use array for struct sbi_trap_regs and GET/SET macros

2025-07-22 15:54:27 +05:30

sbi_types.h

include: sbi: Make "s8" actually signed.

2025-12-15 18:42:00 +05:30

sbi_unit_test.h

lib: tests: Add test suite init function

2024-05-07 11:27:13 +05:30

sbi_unpriv.h

lib: Remove scratch parameter from unpriv load/store functions

2020-03-28 13:32:01 +05:30

sbi_version.h

include: Bump-up version to 1.8

2025-12-29 12:24:16 +05:30

sbi_visibility.h

include: sbi: Don't use #pragma when preprocessing device tree sources

2025-07-21 16:37:22 +05:30