original files of m241

2026-07-30 11:19:44 +05:30
parent 170c2b3f3a
commit afc7070c1f
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+/* cpusetCommon.h - common cpuset_t and phys_cpuset_t access macros */
+/*
+ * Copyright (c) 2006-2007, 2009-2010, 2012 Wind River Systems, Inc.
+ *
+ * The right to copy, distribute, modify or otherwise make use
+ * of this software may be licensed only pursuant to the terms
+ * of an applicable Wind River license agreement.
+ */
+
+/*
+modification history
+--------------------
+01g,14feb12,zl   use paranthesis around macro arguments (WIND00332849)
+                 moved phys_cpuset access macros to cpuset.h
+01f,28apr10,pad  Moved extern C statement after include statements.
+01e,25jan10,d_c  SMP M-N updates: Add phys_cpu_t access macros. Add
+                 CPUSET_LAST_INDEX macro.
+01d,28apr09,cww  Use fixed sized atomic operators
+01d,02feb09,cww  Add support for dynamic CPU reservation
+01c,17oct07,kk   add comment to indicate updates here should also be done in
+                 cpuset.c
+01b,18jun07,mmi  Added CPUSET_ATOMICCOPY()
+01a,13jun07,jmg  Created from cpuset.h.
+*/
+
+#ifndef __INCcpusetCommonh
+#define __INCcpusetCommonh
+
+#include <base/b_cpuset_t.h>
+#include <vxAtomicLib.h>
+#include <ffsLib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* defines */
+
+/* 
+ * WARNING: Any updates made here should also be
+ * review for doc updates in src/os/cpuset.c file
+ * for both kernel and user side.
+ */
+
+/* set of macros to manipulate the cpuset_t type */
+
+#define CPUSET_ATOMICCOPY(cpusetDst, cpusetSrc)				\
+	vxAtomic32Set ((atomic32_t *) &(cpusetDst), (atomic32Val_t) (cpusetSrc))
+#define CPUSET_ATOMICSET(cpuset, n)					\
+	vxAtomic32Or ((atomic32_t *) &(cpuset), 1 << (n))
+#define CPUSET_ATOMICCLR(cpuset, n)					\
+	vxAtomic32And ((atomic32_t *) &(cpuset), ~(1 << (n)))
+
+#define CPUSET_SET(cpuset, n)               ((cpuset) |= (1 << (n)))
+#define CPUSET_ISSET(cpuset, n)             ((cpuset) & (1 << (n)))
+#define CPUSET_CLR(cpuset, n)               ((cpuset) &= ~(1 << (n)))
+#define CPUSET_ZERO(cpuset)                 ((cpuset) = 0)
+#define CPUSET_ISZERO(cpuset)	            ((cpuset) == 0)
+
+#define CPUSET_FIRST_SET(cpuset) 					\
+	((int)(cpuset) & (int)-(cpuset))
+#define CPUSET_FIRST_INDEX(cpuset) 					\
+	(FFS_LSB (cpuset) - 1)
+#define CPUSET_LAST_INDEX(cpuset) 					\
+	(FFS_MSB (cpuset) - 1)
+#define CPUSET_ADD(cpusetAugend,cpusetAddend)				\
+	((cpusetAugend) |= (cpusetAddend))
+#define CPUSET_SUB(cpusetMinuend,cpusetSubtrahend)			\
+	((cpusetMinuend) &= ~(cpusetSubtrahend))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __INCcpuseCommonth */