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-rw-r--r--extras/mini-os/include/ia64/atomic.h504
1 files changed, 0 insertions, 504 deletions
diff --git a/extras/mini-os/include/ia64/atomic.h b/extras/mini-os/include/ia64/atomic.h
deleted file mode 100644
index ba5aa16517..0000000000
--- a/extras/mini-os/include/ia64/atomic.h
+++ /dev/null
@@ -1,504 +0,0 @@
-/*
- * This code is mostly taken from FreeBSD machine/atomic.h
- * Changes: Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com>
- *
- ****************************************************************************
- * Copyright (c) 1998 Doug Rabson
- * 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 _MACHINE_ATOMIC_H_
-#define _MACHINE_ATOMIC_H_
-
-/*
- * Various simple arithmetic on memory which is atomic in the presence
- * of interrupts and SMP safe.
- */
-
-#if !defined(__ASSEMBLY__)
-
-#include <mini-os/types.h>
-
-
-/*
- * Everything is built out of cmpxchg.
- */
-#define IA64_CMPXCHG(sz, sem, p, cmpval, newval, ret) \
- __asm __volatile ( \
- "mov ar.ccv=%2;;\n\t" \
- "cmpxchg" #sz "." #sem " %0=%4,%3,ar.ccv\n\t" \
- : "=r" (ret), "=m" (*p) \
- : "r" (cmpval), "r" (newval), "m" (*p) \
- : "memory")
-
-
-/*
- * Some common forms of cmpxch.
- */
-
-static __inline uint8_t
-ia64_cmpxchg_acq_8(volatile uint8_t* p, uint8_t cmpval, uint8_t newval)
-{
- uint8_t ret;
-
- IA64_CMPXCHG(1, acq, p, cmpval, newval, ret);
- return (ret);
-}
-
-static __inline uint16_t
-ia64_cmpxchg_acq_16(volatile uint16_t* p, uint16_t cmpval, uint16_t newval)
-{
- uint16_t ret;
-
- IA64_CMPXCHG(2, acq, p, cmpval, newval, ret);
- return (ret);
-}
-
-static __inline uint32_t
-ia64_cmpxchg_acq_32(volatile uint32_t* p, uint32_t cmpval, uint32_t newval)
-{
- uint32_t ret;
-
- IA64_CMPXCHG(4, acq, p, cmpval, newval, ret);
- return (ret);
-}
-
-static __inline uint32_t
-ia64_cmpxchg_rel_32(volatile uint32_t* p, uint32_t cmpval, uint32_t newval)
-{
- uint32_t ret;
-
- IA64_CMPXCHG(4, rel, p, cmpval, newval, ret);
- return (ret);
-}
-
-static __inline uint64_t
-ia64_cmpxchg_acq_64(volatile uint64_t* p, uint64_t cmpval, uint64_t newval)
-{
- uint64_t ret;
-
- IA64_CMPXCHG(8, acq, p, cmpval, newval, ret);
- return (ret);
-}
-
-static __inline uint64_t
-ia64_cmpxchg_rel_64(volatile uint64_t* p, uint64_t cmpval, uint64_t newval)
-{
- uint64_t ret;
-
- IA64_CMPXCHG(8, rel, p, cmpval, newval, ret);
- return (ret);
-}
-
-#define ATOMIC_STORE_LOAD(type, width, size) \
-static __inline uint##width##_t \
-ia64_ld_acq_##width(volatile uint##width##_t* p) \
-{ \
- uint##width##_t v; \
- \
- __asm __volatile ("ld" size ".acq %0=%1" \
- : "=r" (v) \
- : "m" (*p) \
- : "memory"); \
- return (v); \
-} \
- \
-static __inline uint##width##_t \
-atomic_load_acq_##width(volatile uint##width##_t* p) \
-{ \
- uint##width##_t v; \
- \
- __asm __volatile ("ld" size ".acq %0=%1" \
- : "=r" (v) \
- : "m" (*p) \
- : "memory"); \
- return (v); \
-} \
- \
-static __inline uint##width##_t \
-atomic_load_acq_##type(volatile uint##width##_t* p) \
-{ \
- uint##width##_t v; \
- \
- __asm __volatile ("ld" size ".acq %0=%1" \
- : "=r" (v) \
- : "m" (*p) \
- : "memory"); \
- return (v); \
-} \
- \
-static __inline void \
-ia64_st_rel_##width(volatile uint##width##_t* p, uint##width##_t v)\
-{ \
- __asm __volatile ("st" size ".rel %0=%1" \
- : "=m" (*p) \
- : "r" (v) \
- : "memory"); \
-} \
- \
-static __inline void \
-atomic_store_rel_##width(volatile uint##width##_t* p, uint##width##_t v)\
-{ \
- __asm __volatile ("st" size ".rel %0=%1" \
- : "=m" (*p) \
- : "r" (v) \
- : "memory"); \
-} \
- \
-static __inline void \
-atomic_store_rel_##type(volatile uint##width##_t* p, uint##width##_t v)\
-{ \
- __asm __volatile ("st" size ".rel %0=%1" \
- : "=m" (*p) \
- : "r" (v) \
- : "memory"); \
-}
-
-ATOMIC_STORE_LOAD(char, 8, "1")
-ATOMIC_STORE_LOAD(short, 16, "2")
-ATOMIC_STORE_LOAD(int, 32, "4")
-ATOMIC_STORE_LOAD(long, 64, "8")
-
-#undef ATOMIC_STORE_LOAD
-
-#define IA64_ATOMIC(sz, type, name, width, op) \
- \
-static __inline type \
-atomic_##name##_acq_##width(volatile type *p, type v) \
-{ \
- type old, ret; \
- do { \
- old = *p; \
- IA64_CMPXCHG(sz, acq, p, old, old op v, ret); \
- } while (ret != old); \
- return(ret); \
-} \
- \
-static __inline type \
-atomic_##name##_rel_##width(volatile type *p, type v) \
-{ \
- type old, ret; \
- do { \
- old = *p; \
- IA64_CMPXCHG(sz, rel, p, old, old op v, ret); \
- } while (ret != old); \
- return(ret); \
-}
-
-IA64_ATOMIC(1, uint8_t, set, 8, |)
-IA64_ATOMIC(2, uint16_t, set, 16, |)
-IA64_ATOMIC(4, uint32_t, set, 32, |)
-IA64_ATOMIC(8, uint64_t, set, 64, |)
-
-IA64_ATOMIC(1, uint8_t, clear, 8, &~)
-IA64_ATOMIC(2, uint16_t, clear, 16, &~)
-IA64_ATOMIC(4, uint32_t, clear, 32, &~)
-IA64_ATOMIC(8, uint64_t, clear, 64, &~)
-
-IA64_ATOMIC(1, uint8_t, add, 8, +)
-IA64_ATOMIC(2, uint16_t, add, 16, +)
-IA64_ATOMIC(4, uint32_t, add, 32, +)
-IA64_ATOMIC(8, uint64_t, add, 64, +)
-
-IA64_ATOMIC(1, uint8_t, subtract, 8, -)
-IA64_ATOMIC(2, uint16_t, subtract, 16, -)
-IA64_ATOMIC(4, uint32_t, subtract, 32, -)
-IA64_ATOMIC(8, uint64_t, subtract, 64, -)
-
-#undef IA64_ATOMIC
-#undef IA64_CMPXCHG
-
-#define atomic_set_8 atomic_set_acq_8
-#define atomic_clear_8 atomic_clear_acq_8
-#define atomic_add_8 atomic_add_acq_8
-#define atomic_subtract_8 atomic_subtract_acq_8
-
-#define atomic_set_16 atomic_set_acq_16
-#define atomic_clear_16 atomic_clear_acq_16
-#define atomic_add_16 atomic_add_acq_16
-#define atomic_subtract_16 atomic_subtract_acq_16
-
-#define atomic_set_32 atomic_set_acq_32
-#define atomic_clear_32 atomic_clear_acq_32
-#define atomic_add_32 atomic_add_acq_32
-#define atomic_subtract_32 atomic_subtract_acq_32
-
-#define atomic_set_64 atomic_set_acq_64
-#define atomic_clear_64 atomic_clear_acq_64
-#define atomic_add_64 atomic_add_acq_64
-#define atomic_subtract_64 atomic_subtract_acq_64
-
-#define atomic_set_char atomic_set_8
-#define atomic_clear_char atomic_clear_8
-#define atomic_add_char atomic_add_8
-#define atomic_subtract_char atomic_subtract_8
-#define atomic_set_acq_char atomic_set_acq_8
-#define atomic_clear_acq_char atomic_clear_acq_8
-#define atomic_add_acq_char atomic_add_acq_8
-#define atomic_subtract_acq_char atomic_subtract_acq_8
-#define atomic_set_rel_char atomic_set_rel_8
-#define atomic_clear_rel_char atomic_clear_rel_8
-#define atomic_add_rel_char atomic_add_rel_8
-#define atomic_subtract_rel_char atomic_subtract_rel_8
-
-#define atomic_set_short atomic_set_16
-#define atomic_clear_short atomic_clear_16
-#define atomic_add_short atomic_add_16
-#define atomic_subtract_short atomic_subtract_16
-#define atomic_set_acq_short atomic_set_acq_16
-#define atomic_clear_acq_short atomic_clear_acq_16
-#define atomic_add_acq_short atomic_add_acq_16
-#define atomic_subtract_acq_short atomic_subtract_acq_16
-#define atomic_set_rel_short atomic_set_rel_16
-#define atomic_clear_rel_short atomic_clear_rel_16
-#define atomic_add_rel_short atomic_add_rel_16
-#define atomic_subtract_rel_short atomic_subtract_rel_16
-
-#define atomic_set_int atomic_set_32
-#define atomic_clear_int atomic_clear_32
-#define atomic_add_int atomic_add_32
-#define atomic_subtract_int atomic_subtract_32
-#define atomic_set_acq_int atomic_set_acq_32
-#define atomic_clear_acq_int atomic_clear_acq_32
-#define atomic_add_acq_int atomic_add_acq_32
-#define atomic_subtract_acq_int atomic_subtract_acq_32
-#define atomic_set_rel_int atomic_set_rel_32
-#define atomic_clear_rel_int atomic_clear_rel_32
-#define atomic_add_rel_int atomic_add_rel_32
-#define atomic_subtract_rel_int atomic_subtract_rel_32
-
-#define atomic_set_long atomic_set_64
-#define atomic_clear_long atomic_clear_64
-#define atomic_add_long atomic_add_64
-#define atomic_subtract_long atomic_subtract_64
-#define atomic_set_acq_long atomic_set_acq_64
-#define atomic_clear_acq_long atomic_clear_acq_64
-#define atomic_add_acq_long atomic_add_acq_64
-#define atomic_subtract_acq_long atomic_subtract_acq_64
-#define atomic_set_rel_long atomic_set_rel_64
-#define atomic_clear_rel_long atomic_clear_rel_64
-#define atomic_add_rel_long atomic_add_rel_64
-#define atomic_subtract_rel_long atomic_subtract_rel_64
-
-/*
- * Atomically compare the value stored at *p with cmpval and if the
- * two values are equal, update the value of *p with newval. Returns
- * zero if the compare failed, nonzero otherwise.
- */
-static __inline int
-atomic_cmpset_acq_32(volatile uint32_t* p, uint32_t cmpval, uint32_t newval)
-{
- return ia64_cmpxchg_acq_32(p, cmpval, newval) == cmpval;
-}
-
-static __inline int
-atomic_cmpset_rel_32(volatile uint32_t* p, uint32_t cmpval, uint32_t newval)
-{
- return ia64_cmpxchg_rel_32(p, cmpval, newval) == cmpval;
-}
-
-/*
- * Atomically compare the value stored at *p with cmpval and if the
- * two values are equal, update the value of *p with newval. Returns
- * zero if the compare failed, nonzero otherwise.
- */
-static __inline int
-atomic_cmpset_acq_64(volatile uint64_t* p, uint64_t cmpval, uint64_t newval)
-{
- return ia64_cmpxchg_acq_64(p, cmpval, newval) == cmpval;
-}
-
-static __inline int
-atomic_cmpset_rel_64(volatile uint64_t* p, uint64_t cmpval, uint64_t newval)
-{
- return ia64_cmpxchg_rel_64(p, cmpval, newval) == cmpval;
-}
-
-#define atomic_cmpset_32 atomic_cmpset_acq_32
-#define atomic_cmpset_64 atomic_cmpset_acq_64
-#define atomic_cmpset_int atomic_cmpset_32
-#define atomic_cmpset_long atomic_cmpset_64
-#define atomic_cmpset_acq_int atomic_cmpset_acq_32
-#define atomic_cmpset_rel_int atomic_cmpset_rel_32
-#define atomic_cmpset_acq_long atomic_cmpset_acq_64
-#define atomic_cmpset_rel_long atomic_cmpset_rel_64
-
-static __inline int
-atomic_cmpset_acq_ptr(volatile void *dst, void *exp, void *src)
-{
- return atomic_cmpset_acq_long((volatile u_long *)dst,
- (u_long)exp, (u_long)src);
-}
-
-static __inline int
-atomic_cmpset_rel_ptr(volatile void *dst, void *exp, void *src)
-{
- return atomic_cmpset_rel_long((volatile u_long *)dst,
- (u_long)exp, (u_long)src);
-}
-
-#define atomic_cmpset_ptr atomic_cmpset_acq_ptr
-
-static __inline void *
-atomic_load_acq_ptr(volatile void *p)
-{
- return (void *)atomic_load_acq_long((volatile u_long *)p);
-}
-
-static __inline void
-atomic_store_rel_ptr(volatile void *p, void *v)
-{
- atomic_store_rel_long((volatile u_long *)p, (u_long)v);
-}
-
-#define IA64_ATOMIC_PTR(NAME) \
-static __inline void \
-atomic_##NAME##_ptr(volatile void *p, uintptr_t v) \
-{ \
- atomic_##NAME##_long((volatile u_long *)p, v); \
-} \
- \
-static __inline void \
-atomic_##NAME##_acq_ptr(volatile void *p, uintptr_t v) \
-{ \
- atomic_##NAME##_acq_long((volatile u_long *)p, v);\
-} \
- \
-static __inline void \
-atomic_##NAME##_rel_ptr(volatile void *p, uintptr_t v) \
-{ \
- atomic_##NAME##_rel_long((volatile u_long *)p, v);\
-}
-
-IA64_ATOMIC_PTR(set)
-IA64_ATOMIC_PTR(clear)
-IA64_ATOMIC_PTR(add)
-IA64_ATOMIC_PTR(subtract)
-
-#undef IA64_ATOMIC_PTR
-
-static __inline uint32_t
-atomic_readandclear_32(volatile uint32_t* p)
-{
- uint32_t val;
- do {
- val = *p;
- } while (!atomic_cmpset_32(p, val, 0));
- return val;
-}
-
-static __inline uint64_t
-atomic_readandclear_64(volatile uint64_t* p)
-{
- uint64_t val;
- do {
- val = *p;
- } while (!atomic_cmpset_64(p, val, 0));
- return val;
-}
-
-#define atomic_readandclear_int atomic_readandclear_32
-#define atomic_readandclear_long atomic_readandclear_64
-
-
-/* Some bit operations */
-
-static inline void
-set_bit(int num, volatile void *addr)
-{
- uint32_t bit, old, new;
- volatile uint32_t *p;
- p = (volatile uint32_t *) addr + (num >> 5);
- bit = 1 << (num & 31);
- do
- {
- old = *p;
- new = old | bit;
- } while(ia64_cmpxchg_acq_32(p, old, new) != old);
-}
-
-static __inline__ void
-clear_bit(int num, volatile void *addr)
-{
- uint32_t mask, old, new;
- volatile uint32_t *p;
- p = (volatile uint32_t *) addr + (num >> 5);
- mask = ~(1 << (num & 31));
- do {
- old = *p;
- new = old & mask;
- } while (ia64_cmpxchg_acq_32(p, old, new) != old);
-}
-
-static __inline__ int
-test_bit(int num, const volatile void *addr)
-{
- uint32_t val = 1;
- return val & (((const volatile uint32_t *) addr)[num >> 5] >> (num & 31));
-}
-
-/*
- * test_and_set_bit - Set a bit and return its old value
- * num: Bit to set
- * addr: Address to count from
- */
-static inline int
-test_and_set_bit (int num, volatile void *addr)
-{
- uint32_t bit, old, new;
- volatile uint32_t *m;
-
- m = (volatile uint32_t *) addr + (num >> 5);
- bit = 1 << (num & 31);
- do {
- old = *m;
- new = old | bit;
- } while (ia64_cmpxchg_acq_32(m, old, new) != old);
- return (old & bit) != 0;
-}
-
-/*
- * test_and_clear_bit - Clear a bit and return its old value
- * num: Bit to set
- * addr: Address to count from
- */
-static
-inline int test_and_clear_bit(int num, volatile unsigned long * addr)
-{
- uint32_t bit, old, new;
- volatile uint32_t* a;
-
- a = (volatile uint32_t *) addr + (num >> 5);
- bit = ~(1 << (num & 31));
- do {
- old = *a;
- new = old & bit;
- } while (ia64_cmpxchg_acq_32(a, old, new) != old);
- return (old & ~bit) != 0;
-}
-
-
-#endif /* !defined(__ASSEMBLY__) */
-
-#endif /* ! _MACHINE_ATOMIC_H_ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 18:08:49 +0000