1 files changed, 57 insertions, 0 deletions

diff --git a/sys/sun4v/include/pcb.h b/sys/sun4v/include/pcb.h
new file mode 100644
index 000000000000..f3112576beae
--- /dev/null
+++ b/sys/sun4v/include/pcb.h
@@ -0,0 +1,57 @@
+/*-
+ * Copyright (c) 2001 Jake Burkholder.
+ * 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.
+ *
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef	_MACHINE_PCB_H_
+#define	_MACHINE_PCB_H_
+
+#include <machine/frame.h>
+
+#define	MAXWIN	8
+
+#define	PCB_FEF	(1 << 0)
+
+/* NOTE: pcb_ufp must be aligned on a 64 byte boundary. */
+struct pcb {
+	struct	rwindow pcb_rw[MAXWIN];    /* wbuf for page faults during spill / fill trap handling */ 
+	uint32_t pcb_kfp[64];              /* used for regs in handling kernel floating point exc */
+	uint32_t pcb_ufp[64];              /* used for regs in handling user floating point exc */
+	uint64_t pcb_rwsp[MAXWIN];         /* spbuf sp's for each wbuf */
+	uint64_t pcb_flags;
+	uint64_t pcb_nsaved;               /* number of windows saved in pcb_rw */
+	uint64_t pcb_pc;
+	uint64_t pcb_sp;
+	uint64_t pcb_kstack;               /* pcb's kernel stack */
+	uint64_t pcb_pad[4]; 
+} __aligned(64);
+
+#ifdef _KERNEL
+void	makectx(struct trapframe *, struct pcb *);
+int	savectx(struct pcb *pcb);
+#endif
+
+#endif /* !_MACHINE_PCB_H_ */