opensbi.git/lib/sbi/riscv_atomic.c, branch v1.2

lib: sbi: fix atomic_add_return

2021-04-09T13:21:02Z

The unsigned length may be 4 bytes or 8 bytes, amoadd.w only applies to 4 bytes hence this patch. Signed-off-by: Xiang W Reviewed-by: Anup Patel

include: Use more consistent name for atomic xchg() and cmpxchg()

2020-03-28T08:02:38Z

We should remove the "arch_" prefix from atomic xchg() and cmpxchg() function names to have consistent naming of all atomic functions. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: sbi: Fix coding style issues

2020-03-10T04:57:28Z

This fixes various coding style issues found in the SBI codes. No functional changes. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

include: Move bits related defines and macros to sbi_bitops.h

2020-03-08T05:36:18Z

The right location for all bits related defines and macros is sbi_bitops.h hence this patch. With this patch, the sbi_bits.h is redundant so we remove it. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: Fix typo in atomic exchange functions

2020-02-22T04:34:38Z

There is a typo in atomic operations code which prevents the usage of riscv atomic instructions even if it is supported. Fix the typo. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

lib: Support atomic swap instructions

2019-08-31T07:43:47Z

If compiler supports riscv atomic instructions, we should use them instead of legacy gcc built-in macros __sync_lock_test_and_set in atomic exchange functions. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

lib: Provide an atomic exchange function unsigned long

2019-08-16T03:12:52Z

Signed-off-by: Anup Patel Signed-off-by: Atish Patra

lib: Move sbi core library to lib/sbi

2019-06-19T04:18:51Z

Signed-off-by: Atish Patra Acked-by: Anup Patel