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Diffstat (limited to 'arch/riscv/include/asm/sbi.h')
-rw-r--r--arch/riscv/include/asm/sbi.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index 6e68f8dff76b..ea84392ca9d7 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -375,8 +375,12 @@ unsigned long riscv_cached_marchid(unsigned int cpu_id);
unsigned long riscv_cached_mimpid(unsigned int cpu_id);
#if IS_ENABLED(CONFIG_SMP) && IS_ENABLED(CONFIG_RISCV_SBI)
+DECLARE_STATIC_KEY_FALSE(riscv_sbi_for_rfence);
+#define riscv_use_sbi_for_rfence() \
+ static_branch_unlikely(&riscv_sbi_for_rfence)
void sbi_ipi_init(void);
#else
+static inline bool riscv_use_sbi_for_rfence(void) { return false; }
static inline void sbi_ipi_init(void) { }
#endif