Changes due to <sys/cpuset.h> from latest Newlib

1 files changed, 168 insertions, 0 deletions

diff --git a/rtemsbsd/include/rtems/bsd/sys/cpuset.h b/rtemsbsd/include/rtems/bsd/sys/cpuset.h
new file mode 100644
index 00000000..9048c2d9
--- /dev/null
+++ b/rtemsbsd/include/rtems/bsd/sys/cpuset.h
@@ -0,0 +1,168 @@
+/*-
+ * Copyright (c) 2008,	Jeffrey Roberson <jeff@freebsd.org>
+ * All rights reserved.
+ *
+ * Copyright (c) 2008 Nokia Corporation
+ * 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 unmodified, 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 ``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 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _RTEMS_BSD_SYS_CPUSET_H_
+#define	_RTEMS_BSD_SYS_CPUSET_H_
+
+#include <sys/_cpuset.h>
+
+#define	CPUSETBUFSIZ	((2 + sizeof(long) * 2) * _NCPUWORDS)
+
+#define	CPU_SETOF(n, p) do {					\
+	CPU_ZERO(p);						\
+	((p)->__bits[__cpuset_word(n)] = __cpuset_mask(n));	\
+} while (0)
+
+/* Is p full set. */
+#define	CPU_ISFULLSET(p) __extension__ ({		\
+	__size_t __i;					\
+	for (__i = 0; __i < _NCPUWORDS; __i++)		\
+		if ((p)->__bits[__i] != (long)-1)	\
+			break;				\
+	__i == _NCPUWORDS;				\
+})
+
+/* Is c a subset of p. */
+#define	CPU_SUBSET(p, c) __extension__ ({		\
+	__size_t __i;					\
+	for (__i = 0; __i < _NCPUWORDS; __i++)		\
+		if (((c)->__bits[__i] &			\
+		    (p)->__bits[__i]) !=		\
+		    (c)->__bits[__i])			\
+			break;				\
+	__i == _NCPUWORDS;				\
+})
+
+/* Are there any common bits between b & c? */
+#define	CPU_OVERLAP(p, c) __extension__ ({		\
+	__size_t __i;					\
+	for (__i = 0; __i < _NCPUWORDS; __i++)		\
+		if (((c)->__bits[__i] &			\
+		    (p)->__bits[__i]) != 0)		\
+			break;				\
+	__i != _NCPUWORDS;				\
+})
+
+#define	CPU_CLR_ATOMIC(n, p)						\
+	atomic_clear_long(&(p)->__bits[__cpuset_word(n)], __cpuset_mask(n))
+
+#define	CPU_SET_ATOMIC(n, p)						\
+	atomic_set_long(&(p)->__bits[__cpuset_word(n)], __cpuset_mask(n))
+
+/* Convenience functions catering special cases. */ 
+#define	CPU_OR_ATOMIC(d, s) do {			\
+	__size_t __i;					\
+	for (__i = 0; __i < _NCPUWORDS; __i++)		\
+		atomic_set_long(&(d)->__bits[__i],	\
+		    (s)->__bits[__i]);			\
+} while (0)
+
+#define	CPU_COPY_STORE_REL(f, t) do {				\
+	__size_t __i;						\
+	for (__i = 0; __i < _NCPUWORDS; __i++)			\
+		atomic_store_rel_long(&(t)->__bits[__i],	\
+		    (f)->__bits[__i]);				\
+} while (0)
+
+/*
+ * Valid cpulevel_t values.
+ */
+#define	CPU_LEVEL_ROOT		1	/* All system cpus. */
+#define	CPU_LEVEL_CPUSET	2	/* Available cpus for which. */
+#define	CPU_LEVEL_WHICH		3	/* Actual mask/id for which. */
+
+/*
+ * Valid cpuwhich_t values.
+ */
+#define	CPU_WHICH_TID		1	/* Specifies a thread id. */
+#define	CPU_WHICH_PID		2	/* Specifies a process id. */
+#define	CPU_WHICH_CPUSET	3	/* Specifies a set id. */
+#define	CPU_WHICH_IRQ		4	/* Specifies an irq #. */
+#define	CPU_WHICH_JAIL		5	/* Specifies a jail id. */
+
+/*
+ * Reserved cpuset identifiers.
+ */
+#define	CPUSET_INVALID	-1
+#define	CPUSET_DEFAULT	0
+
+#ifdef _KERNEL
+LIST_HEAD(setlist, cpuset);
+
+/*
+ * cpusets encapsulate cpu binding information for one or more threads.
+ *
+ * 	a - Accessed with atomics.
+ *	s - Set at creation, never modified.  Only a ref required to read.
+ *	c - Locked internally by a cpuset lock.
+ *
+ * The bitmask is only modified while holding the cpuset lock.  It may be
+ * read while only a reference is held but the consumer must be prepared
+ * to deal with inconsistent results.
+ */
+struct cpuset {
+	cpuset_t		cs_mask;	/* bitmask of valid cpus. */
+	volatile u_int		cs_ref;		/* (a) Reference count. */
+	int			cs_flags;	/* (s) Flags from below. */
+	cpusetid_t		cs_id;		/* (s) Id or INVALID. */
+	struct cpuset		*cs_parent;	/* (s) Pointer to our parent. */
+	LIST_ENTRY(cpuset)	cs_link;	/* (c) All identified sets. */
+	LIST_ENTRY(cpuset)	cs_siblings;	/* (c) Sibling set link. */
+	struct setlist		cs_children;	/* (c) List of children. */
+};
+
+#define CPU_SET_ROOT    0x0001  /* Set is a root set. */
+#define CPU_SET_RDONLY  0x0002  /* No modification allowed. */
+
+extern cpuset_t *cpuset_root;
+struct prison;
+struct proc;
+
+struct cpuset *cpuset_thread0(void);
+struct cpuset *cpuset_ref(struct cpuset *);
+void	cpuset_rel(struct cpuset *);
+int	cpuset_setthread(lwpid_t id, cpuset_t *);
+int	cpuset_create_root(struct prison *, struct cpuset **);
+int	cpuset_setproc_update_set(struct proc *, struct cpuset *);
+int	cpusetobj_ffs(const cpuset_t *);
+char	*cpusetobj_strprint(char *, const cpuset_t *);
+int	cpusetobj_strscan(cpuset_t *, const char *);
+
+#else
+__BEGIN_DECLS
+int	cpuset(cpusetid_t *);
+int	cpuset_setid(cpuwhich_t, id_t, cpusetid_t);
+int	cpuset_getid(cpulevel_t, cpuwhich_t, id_t, cpusetid_t *);
+int	cpuset_getaffinity(cpulevel_t, cpuwhich_t, id_t, size_t, cpuset_t *);
+int	cpuset_setaffinity(cpulevel_t, cpuwhich_t, id_t, size_t, const cpuset_t *);
+__END_DECLS
+#endif
+#endif /* !_RTEMS_BSD_SYS_CPUSET_H_ */