summaryrefslogtreecommitdiffstats
path: root/freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_llsc.h
diff options
context:
space:
mode:
Diffstat (limited to 'freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_llsc.h')
-rw-r--r--freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_llsc.h352
1 files changed, 352 insertions, 0 deletions
diff --git a/freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_llsc.h b/freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_llsc.h
new file mode 100644
index 00000000..aa4e3090
--- /dev/null
+++ b/freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_llsc.h
@@ -0,0 +1,352 @@
+/*
+ * Copyright 2009-2016 Samy Al Bahra.
+ * Copyright 2013-2016 Olivier Houchard.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef CK_PR_AARCH64_LLSC_H
+#define CK_PR_AARCH64_LLSC_H
+
+#ifndef CK_PR_H
+#error Do not include this file directly, use ck_pr.h
+#endif
+
+CK_CC_INLINE static bool
+ck_pr_cas_64_2_value(uint64_t target[2], uint64_t compare[2], uint64_t set[2], uint64_t value[2])
+{
+ uint64_t tmp1, tmp2;
+
+ __asm__ __volatile__("1:"
+ "ldxp %0, %1, [%4];"
+ "mov %2, %0;"
+ "mov %3, %1;"
+ "eor %0, %0, %5;"
+ "eor %1, %1, %6;"
+ "orr %1, %0, %1;"
+ "mov %w0, #0;"
+ "cbnz %1, 2f;"
+ "stxp %w0, %7, %8, [%4];"
+ "cbnz %w0, 1b;"
+ "mov %w0, #1;"
+ "2:"
+ : "=&r" (tmp1), "=&r" (tmp2), "=&r" (value[0]), "=&r" (value[1])
+ : "r" (target), "r" (compare[0]), "r" (compare[1]), "r" (set[0]), "r" (set[1])
+ : "cc", "memory");
+
+ return (tmp1);
+}
+
+CK_CC_INLINE static bool
+ck_pr_cas_ptr_2_value(void *target, void *compare, void *set, void *value)
+{
+ return (ck_pr_cas_64_2_value(CK_CPP_CAST(uint64_t *, target),
+ CK_CPP_CAST(uint64_t *, compare),
+ CK_CPP_CAST(uint64_t *, set),
+ CK_CPP_CAST(uint64_t *, value)));
+}
+
+CK_CC_INLINE static bool
+ck_pr_cas_64_2(uint64_t target[2], uint64_t compare[2], uint64_t set[2])
+{
+ uint64_t tmp1, tmp2;
+
+ __asm__ __volatile__("1:"
+ "ldxp %0, %1, [%2];"
+ "eor %0, %0, %3;"
+ "eor %1, %1, %4;"
+ "orr %1, %0, %1;"
+ "mov %w0, #0;"
+ "cbnz %1, 2f;"
+ "stxp %w0, %5, %6, [%2];"
+ "cbnz %w0, 1b;"
+ "mov %w0, #1;"
+ "2:"
+ : "=&r" (tmp1), "=&r" (tmp2)
+ : "r" (target), "r" (compare[0]), "r" (compare[1]), "r" (set[0]), "r" (set[1])
+ : "cc", "memory");
+
+ return (tmp1);
+}
+CK_CC_INLINE static bool
+ck_pr_cas_ptr_2(void *target, void *compare, void *set)
+{
+ return (ck_pr_cas_64_2(CK_CPP_CAST(uint64_t *, target),
+ CK_CPP_CAST(uint64_t *, compare),
+ CK_CPP_CAST(uint64_t *, set)));
+}
+
+
+#define CK_PR_CAS(N, M, T, W, R) \
+ CK_CC_INLINE static bool \
+ ck_pr_cas_##N##_value(M *target, T compare, T set, M *value) \
+ { \
+ T previous; \
+ T tmp; \
+ __asm__ __volatile__("1:" \
+ "ldxr" W " %" R "0, [%2];" \
+ "cmp %" R "0, %" R "4;" \
+ "b.ne 2f;" \
+ "stxr" W " %w1, %" R "3, [%2];" \
+ "cbnz %w1, 1b;" \
+ "2:" \
+ : "=&r" (previous), \
+ "=&r" (tmp) \
+ : "r" (target), \
+ "r" (set), \
+ "r" (compare) \
+ : "memory", "cc"); \
+ *(T *)value = previous; \
+ return (previous == compare); \
+ } \
+ CK_CC_INLINE static bool \
+ ck_pr_cas_##N(M *target, T compare, T set) \
+ { \
+ T previous; \
+ T tmp; \
+ __asm__ __volatile__( \
+ "1:" \
+ "ldxr" W " %" R "0, [%2];" \
+ "cmp %" R "0, %" R "4;" \
+ "b.ne 2f;" \
+ "stxr" W " %w1, %" R "3, [%2];" \
+ "cbnz %w1, 1b;" \
+ "2:" \
+ : "=&r" (previous), \
+ "=&r" (tmp) \
+ : "r" (target), \
+ "r" (set), \
+ "r" (compare) \
+ : "memory", "cc"); \
+ return (previous == compare); \
+ }
+
+CK_PR_CAS(ptr, void, void *, "", "")
+
+#define CK_PR_CAS_S(N, M, W, R) CK_PR_CAS(N, M, M, W, R)
+CK_PR_CAS_S(64, uint64_t, "", "")
+#ifndef CK_PR_DISABLE_DOUBLE
+CK_PR_CAS_S(double, double, "", "")
+#endif
+CK_PR_CAS_S(32, uint32_t, "", "w")
+CK_PR_CAS_S(uint, unsigned int, "", "w")
+CK_PR_CAS_S(int, int, "", "w")
+CK_PR_CAS_S(16, uint16_t, "h", "w")
+CK_PR_CAS_S(8, uint8_t, "b", "w")
+CK_PR_CAS_S(short, short, "h", "w")
+CK_PR_CAS_S(char, char, "b", "w")
+
+
+#undef CK_PR_CAS_S
+#undef CK_PR_CAS
+
+#define CK_PR_FAS(N, M, T, W, R) \
+ CK_CC_INLINE static T \
+ ck_pr_fas_##N(M *target, T v) \
+ { \
+ T previous; \
+ T tmp; \
+ __asm__ __volatile__("1:" \
+ "ldxr" W " %" R "0, [%2];" \
+ "stxr" W " %w1, %" R "3, [%2];"\
+ "cbnz %w1, 1b;" \
+ : "=&r" (previous), \
+ "=&r" (tmp) \
+ : "r" (target), \
+ "r" (v) \
+ : "memory", "cc"); \
+ return (previous); \
+ }
+
+CK_PR_FAS(64, uint64_t, uint64_t, "", "")
+CK_PR_FAS(32, uint32_t, uint32_t, "", "w")
+CK_PR_FAS(ptr, void, void *, "", "")
+CK_PR_FAS(int, int, int, "", "w")
+CK_PR_FAS(uint, unsigned int, unsigned int, "", "w")
+CK_PR_FAS(16, uint16_t, uint16_t, "h", "w")
+CK_PR_FAS(8, uint8_t, uint8_t, "b", "w")
+CK_PR_FAS(short, short, short, "h", "w")
+CK_PR_FAS(char, char, char, "b", "w")
+
+
+#undef CK_PR_FAS
+
+#define CK_PR_UNARY(O, N, M, T, I, W, R) \
+ CK_CC_INLINE static void \
+ ck_pr_##O##_##N(M *target) \
+ { \
+ T previous = 0; \
+ T tmp = 0; \
+ __asm__ __volatile__("1:" \
+ "ldxr" W " %" R "0, [%2];" \
+ I ";" \
+ "stxr" W " %w1, %" R "0, [%2];" \
+ "cbnz %w1, 1b;" \
+ : "=&r" (previous), \
+ "=&r" (tmp) \
+ : "r" (target) \
+ : "memory", "cc"); \
+ return; \
+ }
+
+CK_PR_UNARY(inc, ptr, void, void *, "add %0, %0, #1", "", "")
+CK_PR_UNARY(dec, ptr, void, void *, "sub %0, %0, #1", "", "")
+CK_PR_UNARY(not, ptr, void, void *, "mvn %0, %0", "", "")
+CK_PR_UNARY(inc, 64, uint64_t, uint64_t, "add %0, %0, #1", "", "")
+CK_PR_UNARY(dec, 64, uint64_t, uint64_t, "sub %0, %0, #1", "", "")
+CK_PR_UNARY(not, 64, uint64_t, uint64_t, "mvn %0, %0", "", "")
+
+#define CK_PR_UNARY_S(S, T, W) \
+ CK_PR_UNARY(inc, S, T, T, "add %w0, %w0, #1", W, "w") \
+ CK_PR_UNARY(dec, S, T, T, "sub %w0, %w0, #1", W, "w") \
+ CK_PR_UNARY(not, S, T, T, "mvn %w0, %w0", W, "w") \
+
+CK_PR_UNARY_S(32, uint32_t, "")
+CK_PR_UNARY_S(uint, unsigned int, "")
+CK_PR_UNARY_S(int, int, "")
+CK_PR_UNARY_S(16, uint16_t, "h")
+CK_PR_UNARY_S(8, uint8_t, "b")
+CK_PR_UNARY_S(short, short, "h")
+CK_PR_UNARY_S(char, char, "b")
+
+#undef CK_PR_UNARY_S
+#undef CK_PR_UNARY
+
+#define CK_PR_BINARY(O, N, M, T, I, W, R) \
+ CK_CC_INLINE static void \
+ ck_pr_##O##_##N(M *target, T delta) \
+ { \
+ T previous; \
+ T tmp; \
+ __asm__ __volatile__("1:" \
+ "ldxr" W " %" R "0, [%2];"\
+ I " %" R "0, %" R "0, %" R "3;" \
+ "stxr" W " %w1, %" R "0, [%2];" \
+ "cbnz %w1, 1b;" \
+ : "=&r" (previous), \
+ "=&r" (tmp) \
+ : "r" (target), \
+ "r" (delta) \
+ : "memory", "cc"); \
+ return; \
+ }
+
+CK_PR_BINARY(and, ptr, void, uintptr_t, "and", "", "")
+CK_PR_BINARY(add, ptr, void, uintptr_t, "add", "", "")
+CK_PR_BINARY(or, ptr, void, uintptr_t, "orr", "", "")
+CK_PR_BINARY(sub, ptr, void, uintptr_t, "sub", "", "")
+CK_PR_BINARY(xor, ptr, void, uintptr_t, "eor", "", "")
+CK_PR_BINARY(and, 64, uint64_t, uint64_t, "and", "", "")
+CK_PR_BINARY(add, 64, uint64_t, uint64_t, "add", "", "")
+CK_PR_BINARY(or, 64, uint64_t, uint64_t, "orr", "", "")
+CK_PR_BINARY(sub, 64, uint64_t, uint64_t, "sub", "", "")
+CK_PR_BINARY(xor, 64, uint64_t, uint64_t, "eor", "", "")
+
+#define CK_PR_BINARY_S(S, T, W) \
+ CK_PR_BINARY(and, S, T, T, "and", W, "w") \
+ CK_PR_BINARY(add, S, T, T, "add", W, "w") \
+ CK_PR_BINARY(or, S, T, T, "orr", W, "w") \
+ CK_PR_BINARY(sub, S, T, T, "sub", W, "w") \
+ CK_PR_BINARY(xor, S, T, T, "eor", W, "w")
+
+CK_PR_BINARY_S(32, uint32_t, "")
+CK_PR_BINARY_S(uint, unsigned int, "")
+CK_PR_BINARY_S(int, int, "")
+CK_PR_BINARY_S(16, uint16_t, "h")
+CK_PR_BINARY_S(8, uint8_t, "b")
+CK_PR_BINARY_S(short, short, "h")
+CK_PR_BINARY_S(char, char, "b")
+
+#undef CK_PR_BINARY_S
+#undef CK_PR_BINARY
+
+CK_CC_INLINE static void *
+ck_pr_faa_ptr(void *target, uintptr_t delta)
+{
+ uintptr_t previous, r, tmp;
+
+ __asm__ __volatile__("1:"
+ "ldxr %0, [%3];"
+ "add %1, %4, %0;"
+ "stxr %w2, %1, [%3];"
+ "cbnz %w2, 1b;"
+ : "=&r" (previous),
+ "=&r" (r),
+ "=&r" (tmp)
+ : "r" (target),
+ "r" (delta)
+ : "memory", "cc");
+
+ return (void *)(previous);
+}
+
+CK_CC_INLINE static uint64_t
+ck_pr_faa_64(uint64_t *target, uint64_t delta)
+{
+ uint64_t previous, r, tmp;
+
+ __asm__ __volatile__("1:"
+ "ldxr %0, [%3];"
+ "add %1, %4, %0;"
+ "stxr %w2, %1, [%3];"
+ "cbnz %w2, 1b;"
+ : "=&r" (previous),
+ "=&r" (r),
+ "=&r" (tmp)
+ : "r" (target),
+ "r" (delta)
+ : "memory", "cc");
+
+ return (previous);
+}
+
+#define CK_PR_FAA(S, T, W) \
+ CK_CC_INLINE static T \
+ ck_pr_faa_##S(T *target, T delta) \
+ { \
+ T previous, r, tmp; \
+ __asm__ __volatile__("1:" \
+ "ldxr" W " %w0, [%3];" \
+ "add %w1, %w4, %w0;" \
+ "stxr" W " %w2, %w1, [%3];" \
+ "cbnz %w2, 1b;" \
+ : "=&r" (previous), \
+ "=&r" (r), \
+ "=&r" (tmp) \
+ : "r" (target), \
+ "r" (delta) \
+ : "memory", "cc"); \
+ return (previous); \
+ }
+
+CK_PR_FAA(32, uint32_t, "")
+CK_PR_FAA(uint, unsigned int, "")
+CK_PR_FAA(int, int, "")
+CK_PR_FAA(16, uint16_t, "h")
+CK_PR_FAA(8, uint8_t, "b")
+CK_PR_FAA(short, short, "h")
+CK_PR_FAA(char, char, "b")
+
+#undef CK_PR_FAA
+
+#endif /* CK_PR_AARCH64_LLSC_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 06:09:33 +0000