diff options
Diffstat (limited to 'freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_lse.h')
| -rw-r--r-- | freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_lse.h | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_lse.h b/freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_lse.h new file mode 100644 index 00000000..e2c9554c --- /dev/null +++ b/freebsd/sys/contrib/ck/include/gcc/aarch64/ck_pr_lse.h @@ -0,0 +1,298 @@ +/* + * Copyright 2009-2016 Samy Al Bahra. + * Copyright 2013-2016 Olivier Houchard. + * Copyright 2016 Alexey Kopytov. + * 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_LSE_H +#define CK_PR_AARCH64_LSE_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; + uint64_t tmp2; + register uint64_t x0 __asm__ ("x0") = compare[0]; + register uint64_t x1 __asm__ ("x1") = compare[1]; + register uint64_t x2 __asm__ ("x2") = set[0]; + register uint64_t x3 __asm__ ("x3") = set[1]; + + __asm__ __volatile__("casp %0, %1, %4, %5, [%6];" + "eor %2, %0, %7;" + "eor %3, %1, %8;" + "orr %2, %2, %3;" + : "+&r" (x0), "+&r" (x1), "=&r" (tmp1), "=&r" (tmp2) + : "r" (x2), "r" (x3), "r" (target), "r" (compare[0]), "r" (compare[1]) + : "memory"); + + value[0] = x0; + value[1] = x1; + + 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]) +{ + register uint64_t x0 __asm__ ("x0") = compare[0]; + register uint64_t x1 __asm__ ("x1") = compare[1]; + register uint64_t x2 __asm__ ("x2") = set[0]; + register uint64_t x3 __asm__ ("x3") = set[1]; + + __asm__ __volatile__("casp %0, %1, %2, %3, [%4];" + "eor %0, %0, %5;" + "eor %1, %1, %6;" + "orr %0, %0, %1;" + : "+&r" (x0), "+&r" (x1) + : "r" (x2), "r" (x3), "r" (target), "r" (compare[0]), "r" (compare[1]) + : "memory"); + + return (!!x0); +} +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 *)value = compare; \ + __asm__ __volatile__( \ + "cas" W " %" R "0, %" R "2, [%1];" \ + : "+&r" (*(T *)value) \ + : "r" (target), \ + "r" (set) \ + : "memory"); \ + return (*(T *)value == compare); \ + } \ + CK_CC_INLINE static bool \ + ck_pr_cas_##N(M *target, T compare, T set) \ + { \ + T previous = compare; \ + __asm__ __volatile__( \ + "cas" W " %" R "0, %" R "2, [%1];" \ + : "+&r" (previous) \ + : "r" (target), \ + "r" (set) \ + : "memory"); \ + 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; \ + __asm__ __volatile__( \ + "swp" W " %" R "2, %" R "0, [%1];" \ + : "=&r" (previous) \ + : "r" (target), \ + "r" (v) \ + : "memory"); \ + 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, S) \ + CK_CC_INLINE static void \ + ck_pr_##O##_##N(M *target) \ + { \ + __asm__ __volatile__(I ";" \ + "st" S W " " R "0, [%0];" \ + : \ + : "r" (target) \ + : "x0", "memory"); \ + return; \ + } + +CK_PR_UNARY(inc, ptr, void, void *, "mov x0, 1", "", "x", "add") +CK_PR_UNARY(dec, ptr, void, void *, "mov x0, -1", "", "x", "add") +CK_PR_UNARY(not, ptr, void, void *, "mov x0, -1", "", "x", "eor") +CK_PR_UNARY(inc, 64, uint64_t, uint64_t, "mov x0, 1", "", "x", "add") +CK_PR_UNARY(dec, 64, uint64_t, uint64_t, "mov x0, -1", "", "x", "add") +CK_PR_UNARY(not, 64, uint64_t, uint64_t, "mov x0, -1", "", "x", "eor") + +#define CK_PR_UNARY_S(S, T, W) \ + CK_PR_UNARY(inc, S, T, T, "mov w0, 1", W, "w", "add") \ + CK_PR_UNARY(dec, S, T, T, "mov w0, -1", W, "w", "add") \ + CK_PR_UNARY(not, S, T, T, "mov w0, -1", W, "w", "eor") \ + +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, S, W, R, I) \ + CK_CC_INLINE static void \ + ck_pr_##O##_##N(M *target, T delta) \ + { \ + __asm__ __volatile__(I ";" \ + "st" S W " %" R "0, [%1];" \ + : "+&r" (delta) \ + : "r" (target) \ + : "memory"); \ + return; \ + } + +CK_PR_BINARY(and, ptr, void, uintptr_t, "clr", "", "", "mvn %0, %0") +CK_PR_BINARY(add, ptr, void, uintptr_t, "add", "", "", "") +CK_PR_BINARY(or, ptr, void, uintptr_t, "set", "", "", "") +CK_PR_BINARY(sub, ptr, void, uintptr_t, "add", "", "", "neg %0, %0") +CK_PR_BINARY(xor, ptr, void, uintptr_t, "eor", "", "", "") +CK_PR_BINARY(and, 64, uint64_t, uint64_t, "clr", "", "", "mvn %0, %0") +CK_PR_BINARY(add, 64, uint64_t, uint64_t, "add", "", "", "") +CK_PR_BINARY(or, 64, uint64_t, uint64_t, "set", "", "", "") +CK_PR_BINARY(sub, 64, uint64_t, uint64_t, "add", "", "", "neg %0, %0") +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, "clr", W, "w", "mvn %w0, %w0") \ + CK_PR_BINARY(add, S, T, T, "add", W, "w", "") \ + CK_PR_BINARY(or, S, T, T, "set", W, "w", "") \ + CK_PR_BINARY(sub, S, T, T, "add", W, "w", "neg %w0, %w0") \ + 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; + + __asm__ __volatile__( + "ldadd %2, %0, [%1];" + : "=r" (previous) + : "r" (target), + "r" (delta) + : "memory"); + + return (void *)(previous); +} + +CK_CC_INLINE static uint64_t +ck_pr_faa_64(uint64_t *target, uint64_t delta) +{ + uint64_t previous; + + __asm__ __volatile__( + "ldadd %2, %0, [%1];" + : "=r" (previous) + : "r" (target), + "r" (delta) + : "memory"); + + return (previous); +} + +#define CK_PR_FAA(S, T, W) \ + CK_CC_INLINE static T \ + ck_pr_faa_##S(T *target, T delta) \ + { \ + T previous; \ + __asm__ __volatile__( \ + "ldadd" W " %w2, %w0, [%1];" \ + : "=r" (previous) \ + : "r" (target), \ + "r" (delta) \ + : "memory"); \ + 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_LSE_H */ |