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diff --git a/sys/riscv/include/atomic.h b/sys/riscv/include/atomic.h
--- a/sys/riscv/include/atomic.h
+++ b/sys/riscv/include/atomic.h
@@ -266,6 +266,34 @@
return (ret);
}
+static __inline int
+atomic_testandclear_32(volatile uint32_t *p, u_int val)
+{
+ uint32_t mask, old;
+
+ mask = 1u << (val & 31);
+ __asm __volatile("amoand.w %0, %2, %1"
+ : "=&r" (old), "+A" (*p)
+ : "r" (~mask)
+ : "memory");
+
+ return ((old & mask) != 0);
+}
+
+static __inline int
+atomic_testandset_32(volatile uint32_t *p, u_int val)
+{
+ uint32_t mask, old;
+
+ mask = 1u << (val & 31);
+ __asm __volatile("amoor.w %0, %2, %1"
+ : "=&r" (old), "+A" (*p)
+ : "r" (mask)
+ : "memory");
+
+ return ((old & mask) != 0);
+}
+
#define atomic_add_int atomic_add_32
#define atomic_clear_int atomic_clear_32
#define atomic_cmpset_int atomic_cmpset_32
@@ -437,6 +465,48 @@
return (ret);
}
+static __inline int
+atomic_testandclear_64(volatile uint64_t *p, u_int val)
+{
+ uint64_t mask, old;
+
+ mask = 1ul << (val & 63);
+ __asm __volatile("amoand.d %0, %2, %1"
+ : "=&r" (old), "+A" (*p)
+ : "r" (~mask)
+ : "memory");
+
+ return ((old & mask) != 0);
+}
+
+static __inline int
+atomic_testandset_64(volatile uint64_t *p, u_int val)
+{
+ uint64_t mask, old;
+
+ mask = 1ul << (val & 63);
+ __asm __volatile("amoor.d %0, %2, %1"
+ : "=&r" (old), "+A" (*p)
+ : "r" (mask)
+ : "memory");
+
+ return ((old & mask) != 0);
+}
+
+static __inline int
+atomic_testandset_acq_64(volatile uint64_t *p, u_int val)
+{
+ uint64_t mask, old;
+
+ mask = 1ul << (val & 63);
+ __asm __volatile("amoor.d.aq %0, %2, %1"
+ : "=&r" (old), "+A" (*p)
+ : "r" (mask)
+ : "memory");
+
+ return ((old & mask) != 0);
+}
+
static __inline uint32_t
atomic_swap_32(volatile uint32_t *p, uint32_t val)
{
@@ -474,6 +544,9 @@
#define atomic_set_long atomic_set_64
#define atomic_subtract_long atomic_subtract_64
#define atomic_swap_long atomic_swap_64
+#define atomic_testandclear_long atomic_testandclear_64
+#define atomic_testandset_long atomic_testandset_64
+#define atomic_testandset_acq_long atomic_testandset_acq_64
#define atomic_add_ptr atomic_add_64
#define atomic_clear_ptr atomic_clear_64

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