Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

106 files changed, 9217 insertions, 0 deletions

diff --git a/include/asm-frv/a.out.h b/include/asm-frv/a.out.h
new file mode 100644
index 00000000000..dd3b7e5754c
--- /dev/null
+++ b/include/asm-frv/a.out.h
@@ -0,0 +1,5 @@
+/*
+ * FRV doesn't do AOUT format. This header file should be removed as
+ * soon as fs/exec.c and fs/proc/kcore.c and the archs that require
+ * them to include linux/a.out.h are fixed.
+ */
diff --git a/include/asm-frv/atomic.h b/include/asm-frv/atomic.h
new file mode 100644
index 00000000000..e7596846342
--- /dev/null
+++ b/include/asm-frv/atomic.h
@@ -0,0 +1,417 @@
+/* atomic.h: atomic operation emulation for FR-V
+ *
+ * For an explanation of how atomic ops work in this arch, see:
+ *   Documentation/fujitsu/frv/atomic-ops.txt
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _ASM_ATOMIC_H
+#define _ASM_ATOMIC_H
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <asm/spr-regs.h>
+
+#ifdef CONFIG_SMP
+#error not SMP safe
+#endif
+
+/*
+ * Atomic operations that C can't guarantee us.  Useful for
+ * resource counting etc..
+ *
+ * We do not have SMP systems, so we don't have to deal with that.
+ */
+
+/* Atomic operations are already serializing */
+#define smp_mb__before_atomic_dec()	barrier()
+#define smp_mb__after_atomic_dec()	barrier()
+#define smp_mb__before_atomic_inc()	barrier()
+#define smp_mb__after_atomic_inc()	barrier()
+
+typedef struct {
+	int counter;
+} atomic_t;
+
+#define ATOMIC_INIT(i)		{ (i) }
+#define atomic_read(v)		((v)->counter)
+#define atomic_set(v, i)	(((v)->counter) = (i))
+
+#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+	unsigned long val;
+
+	asm("0:						\n"
+	    "	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
+	    "	ckeq		icc3,cc7		\n"
+	    "	ld.p		%M0,%1			\n"	/* LD.P/ORCR must be atomic */
+	    "	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
+	    "	add%I2		%1,%2,%1		\n"
+	    "	cst.p		%1,%M0		,cc3,#1	\n"
+	    "	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* clear ICC3.Z if store happens */
+	    "	beq		icc3,#0,0b		\n"
+	    : "+U"(v->counter), "=&r"(val)
+	    : "NPr"(i)
+	    : "memory", "cc7", "cc3", "icc3"
+	    );
+
+	return val;
+}
+
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+	unsigned long val;
+
+	asm("0:						\n"
+	    "	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
+	    "	ckeq		icc3,cc7		\n"
+	    "	ld.p		%M0,%1			\n"	/* LD.P/ORCR must be atomic */
+	    "	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
+	    "	sub%I2		%1,%2,%1		\n"
+	    "	cst.p		%1,%M0		,cc3,#1	\n"
+	    "	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* clear ICC3.Z if store happens */
+	    "	beq		icc3,#0,0b		\n"
+	    : "+U"(v->counter), "=&r"(val)
+	    : "NPr"(i)
+	    : "memory", "cc7", "cc3", "icc3"
+	    );
+
+	return val;
+}
+
+#else
+
+extern int atomic_add_return(int i, atomic_t *v);
+extern int atomic_sub_return(int i, atomic_t *v);
+
+#endif
+
+static inline int atomic_add_negative(int i, atomic_t *v)
+{
+	return atomic_add_return(i, v) < 0;
+}
+
+static inline void atomic_add(int i, atomic_t *v)
+{
+	atomic_add_return(i, v);
+}
+
+static inline void atomic_sub(int i, atomic_t *v)
+{
+	atomic_sub_return(i, v);
+}
+
+static inline void atomic_inc(atomic_t *v)
+{
+	atomic_add_return(1, v);
+}
+
+static inline void atomic_dec(atomic_t *v)
+{
+	atomic_sub_return(1, v);
+}
+
+#define atomic_dec_return(v)		atomic_sub_return(1, (v))
+#define atomic_inc_return(v)		atomic_add_return(1, (v))
+
+#define atomic_sub_and_test(i,v)	(atomic_sub_return((i), (v)) == 0)
+#define atomic_dec_and_test(v)		(atomic_sub_return(1, (v)) == 0)
+#define atomic_inc_and_test(v)		(atomic_add_return(1, (v)) == 0)
+
+#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
+static inline
+unsigned long atomic_test_and_ANDNOT_mask(unsigned long mask, volatile unsigned long *v)
+{
+	unsigned long old, tmp;
+
+	asm volatile(
+		"0:						\n"
+		"	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
+		"	ckeq		icc3,cc7		\n"
+		"	ld.p		%M0,%1			\n"	/* LD.P/ORCR are atomic */
+		"	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
+		"	and%I3		%1,%3,%2		\n"
+		"	cst.p		%2,%M0		,cc3,#1	\n"	/* if store happens... */
+		"	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* ... clear ICC3.Z */
+		"	beq		icc3,#0,0b		\n"
+		: "+U"(*v), "=&r"(old), "=r"(tmp)
+		: "NPr"(~mask)
+		: "memory", "cc7", "cc3", "icc3"
+		);
+
+	return old;
+}
+
+static inline
+unsigned long atomic_test_and_OR_mask(unsigned long mask, volatile unsigned long *v)
+{
+	unsigned long old, tmp;
+
+	asm volatile(
+		"0:						\n"
+		"	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
+		"	ckeq		icc3,cc7		\n"
+		"	ld.p		%M0,%1			\n"	/* LD.P/ORCR are atomic */
+		"	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
+		"	or%I3		%1,%3,%2		\n"
+		"	cst.p		%2,%M0		,cc3,#1	\n"	/* if store happens... */
+		"	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* ... clear ICC3.Z */
+		"	beq		icc3,#0,0b		\n"
+		: "+U"(*v), "=&r"(old), "=r"(tmp)
+		: "NPr"(mask)
+		: "memory", "cc7", "cc3", "icc3"
+		);
+
+	return old;
+}
+
+static inline
+unsigned long atomic_test_and_XOR_mask(unsigned long mask, volatile unsigned long *v)
+{
+	unsigned long old, tmp;
+
+	asm volatile(
+		"0:						\n"
+		"	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
+		"	ckeq		icc3,cc7		\n"
+		"	ld.p		%M0,%1			\n"	/* LD.P/ORCR are atomic */
+		"	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
+		"	xor%I3		%1,%3,%2		\n"
+		"	cst.p		%2,%M0		,cc3,#1	\n"	/* if store happens... */
+		"	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* ... clear ICC3.Z */
+		"	beq		icc3,#0,0b		\n"
+		: "+U"(*v), "=&r"(old), "=r"(tmp)
+		: "NPr"(mask)
+		: "memory", "cc7", "cc3", "icc3"
+		);
+
+	return old;
+}
+
+#else
+
+extern unsigned long atomic_test_and_ANDNOT_mask(unsigned long mask, volatile unsigned long *v);
+extern unsigned long atomic_test_and_OR_mask(unsigned long mask, volatile unsigned long *v);
+extern unsigned long atomic_test_and_XOR_mask(unsigned long mask, volatile unsigned long *v);
+
+#endif
+
+#define atomic_clear_mask(mask, v)	atomic_test_and_ANDNOT_mask((mask), (v))
+#define atomic_set_mask(mask, v)	atomic_test_and_OR_mask((mask), (v))
+
+/*****************************************************************************/
+/*
+ * exchange value with memory
+ */
+#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
+
+#define xchg(ptr, x)								\
+({										\
+	__typeof__(ptr) __xg_ptr = (ptr);					\
+	__typeof__(*(ptr)) __xg_orig;						\
+										\
+	switch (sizeof(__xg_orig)) {						\
+	case 1:									\
+		asm volatile(							\
+			"0:						\n"	\
+			"	orcc		gr0,gr0,gr0,icc3	\n"	\
+			"	ckeq		icc3,cc7		\n"	\
+			"	ldub.p		%M0,%1			\n"	\
+			"	orcr		cc7,cc7,cc3		\n"	\
+			"	cstb.p		%2,%M0		,cc3,#1	\n"	\
+			"	corcc		gr29,gr29,gr0	,cc3,#1	\n"	\
+			"	beq		icc3,#0,0b		\n"	\
+			: "+U"(*__xg_ptr), "=&r"(__xg_orig)			\
+			: "r"(x)						\
+			: "memory", "cc7", "cc3", "icc3"			\
+			);							\
+		break;								\
+										\
+	case 2:									\
+		asm volatile(							\
+			"0:						\n"	\
+			"	orcc		gr0,gr0,gr0,icc3	\n"	\
+			"	ckeq		icc3,cc7		\n"	\
+			"	lduh.p		%M0,%1			\n"	\
+			"	orcr		cc7,cc7,cc3		\n"	\
+			"	csth.p		%2,%M0		,cc3,#1	\n"	\
+			"	corcc		gr29,gr29,gr0	,cc3,#1	\n"	\
+			"	beq		icc3,#0,0b		\n"	\
+			: "+U"(*__xg_ptr), "=&r"(__xg_orig)			\
+			: "r"(x)						\
+			: "memory", "cc7", "cc3", "icc3"			\
+			);							\
+		break;								\
+										\
+	case 4:									\
+		asm volatile(							\
+			"0:						\n"	\
+			"	orcc		gr0,gr0,gr0,icc3	\n"	\
+			"	ckeq		icc3,cc7		\n"	\
+			"	ld.p		%M0,%1			\n"	\
+			"	orcr		cc7,cc7,cc3		\n"	\
+			"	cst.p		%2,%M0		,cc3,#1	\n"	\
+			"	corcc		gr29,gr29,gr0	,cc3,#1	\n"	\
+			"	beq		icc3,#0,0b		\n"	\
+			: "+U"(*__xg_ptr), "=&r"(__xg_orig)			\
+			: "r"(x)						\
+			: "memory", "cc7", "cc3", "icc3"			\
+