1 files changed, 66 insertions, 0 deletions
diff --git a/sys/powerpc/include/tls.h b/sys/powerpc/include/tls.h
new file mode 100644
index 000000000000..745a83a910c4
--- /dev/null
+++ b/sys/powerpc/include/tls.h
@@ -0,0 +1,66 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright 2004 by Peter Grehan. 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, 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * 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.
+ */
+
+#ifndef _MACHINE_TLS_H_
+#define	_MACHINE_TLS_H_
+
+#include <sys/_tls_variant_i.h>
+
+#define	TLS_DTV_OFFSET	0x8000
+#define	TLS_TCB_ALIGN	TLS_TCB_SIZE
+#define	TLS_TP_OFFSET	0x7000
+
+static __inline void
+_tcb_set(struct tcb *tcb)
+{
+#ifdef __powerpc64__
+	__asm __volatile("mr 13,%0" ::
+	    "r" ((uint8_t *)tcb + TLS_TP_OFFSET + TLS_TCB_SIZE));
+#else
+	__asm __volatile("mr 2,%0" ::
+	    "r" ((uint8_t *)tcb + TLS_TP_OFFSET + TLS_TCB_SIZE));
+#endif
+}
+
+static __inline struct tcb *
+_tcb_get(void)
+{
+	struct tcb *tcb;
+
+#ifdef __powerpc64__
+	__asm __volatile("addi %0,13,%1" : "=r" (tcb) :
+	    "i" (-(TLS_TP_OFFSET + TLS_TCB_SIZE)));
+#else
+	__asm __volatile("addi %0,2,%1" : "=r" (tcb) :
+	    "i" (-(TLS_TP_OFFSET + TLS_TCB_SIZE)));
+#endif
+	return (tcb);
+}
+
+#endif /* !_MACHINE_TLS_H_ */