From 8889e0106db85656857d44a56b13a6eec6192013 Mon Sep 17 00:00:00 2001 From: Xiang Wang Date: Wed, 4 Jul 2018 15:57:52 +0800 Subject: riscv: use __riscv_atomic to check support A extension MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit GCC pre-defined some macros for detecting ISA extensions. We should use these macros to detect ISA features. Change-Id: I5782cdd1bf64b0161c58d789f46389dccfe44475 Signed-off-by: XiangWang Reviewed-on: https://review.coreboot.org/27300 Tested-by: build bot (Jenkins) Reviewed-by: Jonathan Neuschäfer --- src/arch/riscv/include/atomic.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src') diff --git a/src/arch/riscv/include/atomic.h b/src/arch/riscv/include/atomic.h index bc739fbb71..15702e445f 100644 --- a/src/arch/riscv/include/atomic.h +++ b/src/arch/riscv/include/atomic.h @@ -39,7 +39,7 @@ typedef struct { int lock; } spinlock_t; #define atomic_set(ptr, val) (*(volatile typeof(*(ptr)) *)(ptr) = val) #define atomic_read(ptr) (*(volatile typeof(*(ptr)) *)(ptr)) -#ifdef PK_ENABLE_ATOMICS +#ifdef __riscv_atomic # define atomic_add(ptr, inc) __sync_fetch_and_add(ptr, inc) # define atomic_swap(ptr, swp) __sync_lock_test_and_set(ptr, swp) # define atomic_cas(ptr, cmp, swp) __sync_val_compare_and_swap(ptr, cmp, swp) -- cgit v1.2.3