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3 Commits

Author SHA1 Message Date
Atish Patra 6bd1512024 lib: Support atomic swap instructions 
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 <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
 2019-08-31 13:13:47 +05:30
Atish Patra f6e13e0dd3 lib: Provide an atomic exchange function unsigned long 
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
 2019-08-16 08:42:52 +05:30
Atish Patra 749b0b0932 lib: Move sbi core library to lib/sbi 
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Acked-by: Anup Patel <anup.patel@wdc.com>
 2019-06-19 09:48:51 +05:30