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-rw-r--r--sys/contrib/ck/include/gcc/aarch64/ck_pr.h227
1 files changed, 227 insertions, 0 deletions
diff --git a/sys/contrib/ck/include/gcc/aarch64/ck_pr.h b/sys/contrib/ck/include/gcc/aarch64/ck_pr.h
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+++ b/sys/contrib/ck/include/gcc/aarch64/ck_pr.h
@@ -0,0 +1,227 @@
+/*
+ * 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_H
+#define CK_PR_AARCH64_H
+
+#ifndef CK_PR_H
+#error Do not include this file directly, use ck_pr.h
+#endif
+
+#include <ck_cc.h>
+#include <ck_md.h>
+
+/*
+ * The following represent supported atomic operations.
+ * These operations may be emulated.
+ */
+#include "ck_f_pr.h"
+
+/*
+ * Minimum interface requirement met.
+ */
+#define CK_F_PR
+
+CK_CC_INLINE static void
+ck_pr_stall(void)
+{
+
+ __asm__ __volatile__("" ::: "memory");
+ return;
+}
+
+#define CK_DMB_SY __asm __volatile("dmb ish" : : "r" (0) : "memory")
+#define CK_DMB_LD __asm __volatile("dmb ishld" : : "r" (0) : "memory")
+#define CK_DMB_ST __asm __volatile("dmb ishst" : : "r" (0) : "memory")
+
+#define CK_PR_FENCE(T, I) \
+ CK_CC_INLINE static void \
+ ck_pr_fence_strict_##T(void) \
+ { \
+ I; \
+ }
+
+CK_PR_FENCE(atomic, CK_DMB_ST)
+CK_PR_FENCE(atomic_store, CK_DMB_ST)
+CK_PR_FENCE(atomic_load, CK_DMB_SY)
+CK_PR_FENCE(store_atomic, CK_DMB_ST)
+CK_PR_FENCE(load_atomic, CK_DMB_SY)
+CK_PR_FENCE(store, CK_DMB_ST)
+CK_PR_FENCE(store_load, CK_DMB_SY)
+CK_PR_FENCE(load, CK_DMB_LD)
+CK_PR_FENCE(load_store, CK_DMB_SY)
+CK_PR_FENCE(memory, CK_DMB_SY)
+CK_PR_FENCE(acquire, CK_DMB_SY)
+CK_PR_FENCE(release, CK_DMB_SY)
+CK_PR_FENCE(acqrel, CK_DMB_SY)
+CK_PR_FENCE(lock, CK_DMB_SY)
+CK_PR_FENCE(unlock, CK_DMB_SY)
+
+#undef CK_PR_FENCE
+
+#undef CK_DMB_SI
+#undef CK_DMB_LD
+#undef CK_DMB_ST
+
+#define CK_PR_LOAD(S, M, T, I) \
+ CK_CC_INLINE static T \
+ ck_pr_md_load_##S(const M *target) \
+ { \
+ long r = 0; \
+ __asm__ __volatile__(I " %w0, [%1];" \
+ : "=r" (r) \
+ : "r" (target) \
+ : "memory"); \
+ return ((T)r); \
+ }
+#define CK_PR_LOAD_64(S, M, T, I) \
+ CK_CC_INLINE static T \
+ ck_pr_md_load_##S(const M *target) \
+ { \
+ long r = 0; \
+ __asm__ __volatile__(I " %0, [%1];" \
+ : "=r" (r) \
+ : "r" (target) \
+ : "memory"); \
+ return ((T)r); \
+ }
+
+
+CK_PR_LOAD_64(ptr, void, void *, "ldr")
+
+#define CK_PR_LOAD_S(S, T, I) CK_PR_LOAD(S, T, T, I)
+#define CK_PR_LOAD_S_64(S, T, I) CK_PR_LOAD_64(S, T, T, I)
+
+CK_PR_LOAD_S_64(64, uint64_t, "ldr")
+CK_PR_LOAD_S(32, uint32_t, "ldr")
+CK_PR_LOAD_S(16, uint16_t, "ldrh")
+CK_PR_LOAD_S(8, uint8_t, "ldrb")
+CK_PR_LOAD_S(uint, unsigned int, "ldr")
+CK_PR_LOAD_S(int, int, "ldr")
+CK_PR_LOAD_S(short, short, "ldrh")
+CK_PR_LOAD_S(char, char, "ldrb")
+#ifndef CK_PR_DISABLE_DOUBLE
+CK_PR_LOAD_S_64(double, double, "ldr")
+#endif
+
+#undef CK_PR_LOAD_S
+#undef CK_PR_LOAD_S_64
+#undef CK_PR_LOAD
+#undef CK_PR_LAOD_64
+
+#define CK_PR_STORE(S, M, T, I) \
+ CK_CC_INLINE static void \
+ ck_pr_md_store_##S(M *target, T v) \
+ { \
+ __asm__ __volatile__(I " %w1, [%0]" \
+ : \
+ : "r" (target), \
+ "r" (v) \
+ : "memory"); \
+ return; \
+ }
+#define CK_PR_STORE_64(S, M, T, I) \
+ CK_CC_INLINE static void \
+ ck_pr_md_store_##S(M *target, T v) \
+ { \
+ __asm__ __volatile__(I " %1, [%0]" \
+ : \
+ : "r" (target), \
+ "r" (v) \
+ : "memory"); \
+ return; \
+ }
+
+CK_PR_STORE_64(ptr, void, const void *, "str")
+
+#define CK_PR_STORE_S(S, T, I) CK_PR_STORE(S, T, T, I)
+#define CK_PR_STORE_S_64(S, T, I) CK_PR_STORE_64(S, T, T, I)
+
+CK_PR_STORE_S_64(64, uint64_t, "str")
+CK_PR_STORE_S(32, uint32_t, "str")
+CK_PR_STORE_S(16, uint16_t, "strh")
+CK_PR_STORE_S(8, uint8_t, "strb")
+CK_PR_STORE_S(uint, unsigned int, "str")
+CK_PR_STORE_S(int, int, "str")
+CK_PR_STORE_S(short, short, "strh")
+CK_PR_STORE_S(char, char, "strb")
+#ifndef CK_PR_DISABLE_DOUBLE
+CK_PR_STORE_S_64(double, double, "str")
+#endif
+
+#undef CK_PR_STORE_S
+#undef CK_PR_STORE_S_64
+#undef CK_PR_STORE
+#undef CK_PR_STORE_64
+
+#ifdef CK_MD_LSE_ENABLE
+#include "ck_pr_lse.h"
+#else
+#include "ck_pr_llsc.h"
+#endif
+
+/*
+ * ck_pr_neg_*() functions can only be implemented via LL/SC, as there are no
+ * LSE alternatives.
+ */
+#define CK_PR_NEG(N, M, T, W, R) \
+ CK_CC_INLINE static void \
+ ck_pr_neg_##N(M *target) \
+ { \
+ T previous = 0; \
+ T tmp = 0; \
+ __asm__ __volatile__("1:" \
+ "ldxr" W " %" R "0, [%2];" \
+ "neg %" R "0, %" R "0;" \
+ "stxr" W " %w1, %" R "0, [%2];" \
+ "cbnz %w1, 1b;" \
+ : "=&r" (previous), \
+ "=&r" (tmp) \
+ : "r" (target) \
+ : "memory", "cc"); \
+ return; \
+ }
+
+CK_PR_NEG(ptr, void, void *, "", "")
+CK_PR_NEG(64, uint64_t, uint64_t, "", "")
+
+#define CK_PR_NEG_S(S, T, W) \
+ CK_PR_NEG(S, T, T, W, "w") \
+
+CK_PR_NEG_S(32, uint32_t, "")
+CK_PR_NEG_S(uint, unsigned int, "")
+CK_PR_NEG_S(int, int, "")
+CK_PR_NEG_S(16, uint16_t, "h")
+CK_PR_NEG_S(8, uint8_t, "b")
+CK_PR_NEG_S(short, short, "h")
+CK_PR_NEG_S(char, char, "b")
+
+#undef CK_PR_NEG_S
+#undef CK_PR_NEG
+
+#endif /* CK_PR_AARCH64_H */
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 21:46:29 +0000