Release 4.14 arch/ia64/include/asm/acenv.h
/*
* IA64 specific ACPICA environments and implementation
*
* Copyright (C) 2014, Intel Corporation
* Author: Lv Zheng <lv.zheng@intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _ASM_IA64_ACENV_H
#define _ASM_IA64_ACENV_H
#include <asm/intrinsics.h>
#define COMPILER_DEPENDENT_INT64 long
#define COMPILER_DEPENDENT_UINT64 unsigned long
/* Asm macros */
static inline int
ia64_acpi_acquire_global_lock(unsigned int *lock)
{
unsigned int old, new, val;
do {
old = *lock;
new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
val = ia64_cmpxchg4_acq(lock, new, old);
} while (unlikely (val != old));
return (new < 3) ? -1 : 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lv Zheng | 86 | 100.00% | 1 | 100.00% |
| Total | 86 | 100.00% | 1 | 100.00% |
static inline int
ia64_acpi_release_global_lock(unsigned int *lock)
{
unsigned int old, new, val;
do {
old = *lock;
new = old & ~0x3;
val = ia64_cmpxchg4_acq(lock, new, old);
} while (unlikely (val != old));
return old & 0x1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lv Zheng | 61 | 100.00% | 1 | 100.00% |
| Total | 61 | 100.00% | 1 | 100.00% |
#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock))
#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
#endif /* _ASM_IA64_ACENV_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lv Zheng | 189 | 100.00% | 1 | 100.00% |
| Total | 189 | 100.00% | 1 | 100.00% |
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