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| author | darylm503 <darylm503@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-04-27 21:42:16 +0000 |
|---|---|---|
| committer | darylm503 <darylm503@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-04-27 21:42:16 +0000 |
| commit | 2aa62f2bc9a9654687b377d9ca8a8c2c860a3852 (patch) | |
| tree | 62a0991a44327154fb88bf95bd6f7522053db7bb /StdLib/Include/X64/machine/atomic.h | |
| parent | 98790d814871cc30bbd536673d3a0948047cd2f0 (diff) | |
| download | edk2-platforms-2aa62f2bc9a9654687b377d9ca8a8c2c860a3852.tar.xz | |
Standard Libraries for EDK II.
This set of three packages: AppPkg, StdLib, StdLibPrivateInternalFiles; contains the implementation of libraries based upon non-UEFI standards such as ISO/IEC-9899, the library portion of the C Language Standard, POSIX, etc.
AppPkg contains applications that make use of the standard libraries defined in the StdLib Package.
StdLib contains header (include) files and the implementations of the standard libraries.
StdLibPrivateInternalFiles contains files for the exclusive use of the library implementations in StdLib. These files should never be directly referenced from applications or other code.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11600 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'StdLib/Include/X64/machine/atomic.h')
| -rw-r--r-- | StdLib/Include/X64/machine/atomic.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/StdLib/Include/X64/machine/atomic.h b/StdLib/Include/X64/machine/atomic.h new file mode 100644 index 0000000000..fa5672b4d3 --- /dev/null +++ b/StdLib/Include/X64/machine/atomic.h @@ -0,0 +1,95 @@ +/* $NetBSD: atomic.h,v 1.4 2005/12/28 19:09:29 perry Exp $ */
+
+/*
+ * Copyright 2002 (c) Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Frank van der Linden for Wasabi Systems, Inc.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed for the NetBSD Project by
+ * Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
+ * 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 _ATOMIC_H
+#define _ATOMIC_H
+
+#ifndef _LOCORE
+
+static __inline u_int64_t
+x86_atomic_testset_u64(volatile u_int64_t *ptr, u_int64_t val) {
+ __asm volatile ("xchgq %0,(%2)" :"=r" (val):"0" (val),"r" (ptr));
+ return val;
+}
+
+static __inline u_int32_t
+x86_atomic_testset_u32(volatile u_int32_t *ptr, u_int32_t val) {
+ __asm volatile ("xchgl %0,(%2)" :"=r" (val):"0" (val),"r" (ptr));
+ return val;
+}
+
+
+
+static __inline int32_t
+x86_atomic_testset_i32(volatile int32_t *ptr, int32_t val) {
+ __asm volatile ("xchgl %0,(%2)" :"=r" (val):"0" (val),"r" (ptr));
+ return val;
+}
+
+
+
+static __inline void
+x86_atomic_setbits_u32(volatile u_int32_t *ptr, u_int32_t bits) {
+ __asm volatile("lock ; orl %1,%0" : "=m" (*ptr) : "ir" (bits));
+}
+
+static __inline void
+x86_atomic_clearbits_u32(volatile u_int32_t *ptr, u_int32_t bits) {
+ __asm volatile("lock ; andl %1,%0" : "=m" (*ptr) : "ir" (~bits));
+}
+
+
+
+static __inline void
+x86_atomic_setbits_u64(volatile u_int64_t *ptr, u_int64_t bits) {
+ __asm volatile("lock ; orq %1,%0" : "=m" (*ptr) : "ir" (~bits));
+}
+
+static __inline void
+x86_atomic_clearbits_u64(volatile u_int64_t *ptr, u_int64_t bits) {
+ __asm volatile("lock ; andq %1,%0" : "=m" (*ptr) : "ir" (~bits));
+}
+
+#define x86_atomic_testset_ul x86_atomic_testset_u32
+#define x86_atomic_testset_i x86_atomic_testset_i32
+#define x86_atomic_setbits_l x86_atomic_setbits_u32
+#define x86_atomic_setbits_ul x86_atomic_setbits_u32
+#define x86_atomic_clearbits_l x86_atomic_clearbits_u32
+#define x86_atomic_clearbits_ul x86_atomic_clearbits_u32
+
+#endif
+#endif
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