1 files changed, 50 insertions, 0 deletions
diff --git a/sys/arm/include/pcpu_aux.h b/sys/arm/include/pcpu_aux.h
new file mode 100644
index 000000000000..9ca9b4def502
--- /dev/null
+++ b/sys/arm/include/pcpu_aux.h
@@ -0,0 +1,50 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2019 The FreeBSD Foundation
+ *
+ * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * 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_PCPU_AUX_H_
+#define	_MACHINE_PCPU_AUX_H_
+
+#ifndef _KERNEL
+#error "Not for userspace"
+#endif
+
+#ifndef _SYS_PCPU_H_
+#error "Do not include machine/pcpu_aux.h directly"
+#endif
+
+/*
+ * To minimize memory waste in per-cpu UMA zones, the page size should
+ * be a multiple of the size of struct pcpu.
+ */
+_Static_assert(PAGE_SIZE % sizeof(struct pcpu) == 0, "fix pcpu size");
+
+extern struct pcpu __pcpu[];
+
+#endif	/* _MACHINE_PCPU_AUX_H_ */