From a439fe51a1f8eb087c22dd24d69cebae4a3addac Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Sun, 27 Jul 2008 23:00:59 +0200
Subject: sparc, sparc64: use arch/sparc/include

The majority of this patch was created by the following script:

***
ASM=arch/sparc/include/asm
mkdir -p $ASM
git mv include/asm-sparc64/ftrace.h $ASM
git rm include/asm-sparc64/*
git mv include/asm-sparc/* $ASM
sed -ie 's/asm-sparc64/asm/g' $ASM/*
sed -ie 's/asm-sparc/asm/g' $ASM/*
***

The rest was an update of the top-level Makefile to use sparc
for header files when sparc64 is being build.
And a small fixlet to pick up the correct unistd.h from
sparc64 code.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/sparc/include/asm/mpmbox.h | 67 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 arch/sparc/include/asm/mpmbox.h

(limited to 'arch/sparc/include/asm/mpmbox.h')

diff --git a/arch/sparc/include/asm/mpmbox.h b/arch/sparc/include/asm/mpmbox.h
new file mode 100644
index 000000000000..f8423039b242
--- /dev/null
+++ b/arch/sparc/include/asm/mpmbox.h
@@ -0,0 +1,67 @@
+/*
+ * mpmbox.h:  Interface and defines for the OpenProm mailbox
+ *               facilities for MP machines under Linux.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#ifndef _SPARC_MPMBOX_H
+#define _SPARC_MPMBOX_H
+
+/* The prom allocates, for each CPU on the machine an unsigned
+ * byte in physical ram.  You probe the device tree prom nodes
+ * for these values.  The purpose of this byte is to be able to
+ * pass messages from one cpu to another.
+ */
+
+/* These are the main message types we have to look for in our
+ * Cpu mailboxes, based upon these values we decide what course
+ * of action to take.
+ */
+
+/* The CPU is executing code in the kernel. */
+#define MAILBOX_ISRUNNING     0xf0
+
+/* Another CPU called romvec->pv_exit(), you should call
+ * prom_stopcpu() when you see this in your mailbox.
+ */
+#define MAILBOX_EXIT          0xfb
+
+/* Another CPU called romvec->pv_enter(), you should call
+ * prom_cpuidle() when this is seen.
+ */
+#define MAILBOX_GOSPIN        0xfc
+
+/* Another CPU has hit a breakpoint either into kadb or the prom
+ * itself.  Just like MAILBOX_GOSPIN, you should call prom_cpuidle()
+ * at this point.
+ */
+#define MAILBOX_BPT_SPIN      0xfd
+
+/* Oh geese, some other nitwit got a damn watchdog reset.  The party's
+ * over so go call prom_stopcpu().
+ */
+#define MAILBOX_WDOG_STOP     0xfe
+
+#ifndef __ASSEMBLY__
+
+/* Handy macro's to determine a cpu's state. */
+
+/* Is the cpu still in Power On Self Test? */
+#define MBOX_POST_P(letter)  ((letter) >= 0x00 && (letter) <= 0x7f)
+
+/* Is the cpu at the 'ok' prompt of the PROM? */
+#define MBOX_PROMPROMPT_P(letter) ((letter) >= 0x80 && (letter) <= 0x8f)
+
+/* Is the cpu spinning in the PROM? */
+#define MBOX_PROMSPIN_P(letter) ((letter) >= 0x90 && (letter) <= 0xef)
+
+/* Sanity check... This is junk mail, throw it out. */
+#define MBOX_BOGON_P(letter) ((letter) >= 0xf1 && (letter) <= 0xfa)
+
+/* Is the cpu actively running an application/kernel-code? */
+#define MBOX_RUNNING_P(letter) ((letter) == MAILBOX_ISRUNNING)
+
+#endif /* !(__ASSEMBLY__) */
+
+#endif /* !(_SPARC_MPMBOX_H) */
-- 
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