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-rw-r--r--arch/arm64/include/asm/atomic.h14
-rw-r--r--arch/arm64/include/asm/barrier.h4
-rw-r--r--arch/arm64/include/asm/jump_label.h18
-rw-r--r--arch/arm64/kernel/jump_label.c2
4 files changed, 33 insertions, 5 deletions
diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h
index 7047051ded40..866a71fca9a3 100644
--- a/arch/arm64/include/asm/atomic.h
+++ b/arch/arm64/include/asm/atomic.h
@@ -85,6 +85,13 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
ATOMIC_OPS(add, add)
ATOMIC_OPS(sub, sub)
+#define atomic_andnot atomic_andnot
+
+ATOMIC_OP(and, and)
+ATOMIC_OP(andnot, bic)
+ATOMIC_OP(or, orr)
+ATOMIC_OP(xor, eor)
+
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@@ -183,6 +190,13 @@ static inline long atomic64_##op##_return(long i, atomic64_t *v) \
ATOMIC64_OPS(add, add)
ATOMIC64_OPS(sub, sub)
+#define atomic64_andnot atomic64_andnot
+
+ATOMIC64_OP(and, and)
+ATOMIC64_OP(andnot, bic)
+ATOMIC64_OP(or, orr)
+ATOMIC64_OP(xor, eor)
+
#undef ATOMIC64_OPS
#undef ATOMIC64_OP_RETURN
#undef ATOMIC64_OP
diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
index 0fa47c4275cb..ef93b20bc964 100644
--- a/arch/arm64/include/asm/barrier.h
+++ b/arch/arm64/include/asm/barrier.h
@@ -44,12 +44,12 @@
do { \
compiletime_assert_atomic_type(*p); \
barrier(); \
- ACCESS_ONCE(*p) = (v); \
+ WRITE_ONCE(*p, v); \
} while (0)
#define smp_load_acquire(p) \
({ \
- typeof(*p) ___p1 = ACCESS_ONCE(*p); \
+ typeof(*p) ___p1 = READ_ONCE(*p); \
compiletime_assert_atomic_type(*p); \
barrier(); \
___p1; \
diff --git a/arch/arm64/include/asm/jump_label.h b/arch/arm64/include/asm/jump_label.h
index c0e5165c2f76..1b5e0e843c3a 100644
--- a/arch/arm64/include/asm/jump_label.h
+++ b/arch/arm64/include/asm/jump_label.h
@@ -26,14 +26,28 @@
#define JUMP_LABEL_NOP_SIZE AARCH64_INSN_SIZE
-static __always_inline bool arch_static_branch(struct static_key *key)
+static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
{
asm goto("1: nop\n\t"
".pushsection __jump_table, \"aw\"\n\t"
".align 3\n\t"
".quad 1b, %l[l_yes], %c0\n\t"
".popsection\n\t"
- : : "i"(key) : : l_yes);
+ : : "i"(&((char *)key)[branch]) : : l_yes);
+
+ return false;
+l_yes:
+ return true;
+}
+
+static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
+{
+ asm goto("1: b %l[l_yes]\n\t"
+ ".pushsection __jump_table, \"aw\"\n\t"
+ ".align 3\n\t"
+ ".quad 1b, %l[l_yes], %c0\n\t"
+ ".popsection\n\t"
+ : : "i"(&((char *)key)[branch]) : : l_yes);
return false;
l_yes:
diff --git a/arch/arm64/kernel/jump_label.c b/arch/arm64/kernel/jump_label.c
index 4f1fec7a46db..c2dd1ad3e648 100644
--- a/arch/arm64/kernel/jump_label.c
+++ b/arch/arm64/kernel/jump_label.c
@@ -28,7 +28,7 @@ void arch_jump_label_transform(struct jump_entry *entry,
void *addr = (void *)entry->code;
u32 insn;
- if (type == JUMP_LABEL_ENABLE) {
+ if (type == JUMP_LABEL_JMP) {
insn = aarch64_insn_gen_branch_imm(entry->code,
entry->target,
AARCH64_INSN_BRANCH_NOLINK);