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-rw-r--r--arch/xtensa/include/asm/atomic.h2
-rw-r--r--arch/xtensa/include/asm/barrier.h29
-rw-r--r--arch/xtensa/include/asm/bitops.h1
-rw-r--r--arch/xtensa/include/asm/cmpxchg.h (renamed from arch/xtensa/include/asm/system.h)67
-rw-r--r--arch/xtensa/include/asm/exec.h14
-rw-r--r--arch/xtensa/include/asm/setup.h2
-rw-r--r--arch/xtensa/include/asm/switch_to.h22
-rw-r--r--arch/xtensa/include/asm/uaccess.h2
8 files changed, 77 insertions, 62 deletions
diff --git a/arch/xtensa/include/asm/atomic.h b/arch/xtensa/include/asm/atomic.h
index 23592eff67ad..b40989308775 100644
--- a/arch/xtensa/include/asm/atomic.h
+++ b/arch/xtensa/include/asm/atomic.h
@@ -18,7 +18,7 @@
#ifdef __KERNEL__
#include <asm/processor.h>
-#include <asm/system.h>
+#include <asm/cmpxchg.h>
#define ATOMIC_INIT(i) { (i) }
diff --git a/arch/xtensa/include/asm/barrier.h b/arch/xtensa/include/asm/barrier.h
new file mode 100644
index 000000000000..55707a8009d3
--- /dev/null
+++ b/arch/xtensa/include/asm/barrier.h
@@ -0,0 +1,29 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SYSTEM_H
+#define _XTENSA_SYSTEM_H
+
+#define smp_read_barrier_depends() do { } while(0)
+#define read_barrier_depends() do { } while(0)
+
+#define mb() barrier()
+#define rmb() mb()
+#define wmb() mb()
+
+#ifdef CONFIG_SMP
+#error smp_* not defined
+#else
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+#endif
+
+#define set_mb(var, value) do { var = value; mb(); } while (0)
+
+#endif /* _XTENSA_SYSTEM_H */
diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h
index 40aa7fe77f66..5270197ddd36 100644
--- a/arch/xtensa/include/asm/bitops.h
+++ b/arch/xtensa/include/asm/bitops.h
@@ -21,7 +21,6 @@
#include <asm/processor.h>
#include <asm/byteorder.h>
-#include <asm/system.h>
#ifdef CONFIG_SMP
# error SMP not supported on this architecture
diff --git a/arch/xtensa/include/asm/system.h b/arch/xtensa/include/asm/cmpxchg.h
index 1e7e09ab6cd7..e32149063d83 100644
--- a/arch/xtensa/include/asm/system.h
+++ b/arch/xtensa/include/asm/cmpxchg.h
@@ -1,5 +1,5 @@
/*
- * include/asm-xtensa/system.h
+ * Atomic xchg and cmpxchg operations.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
@@ -8,44 +8,12 @@
* Copyright (C) 2001 - 2005 Tensilica Inc.
*/
-#ifndef _XTENSA_SYSTEM_H
-#define _XTENSA_SYSTEM_H
+#ifndef _XTENSA_CMPXCHG_H
+#define _XTENSA_CMPXCHG_H
-#include <linux/stringify.h>
-#include <linux/irqflags.h>
-
-#include <asm/processor.h>
-
-#define smp_read_barrier_depends() do { } while(0)
-#define read_barrier_depends() do { } while(0)
-
-#define mb() barrier()
-#define rmb() mb()
-#define wmb() mb()
+#ifndef __ASSEMBLY__
-#ifdef CONFIG_SMP
-#error smp_* not defined
-#else
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-#endif
-
-#define set_mb(var, value) do { var = value; mb(); } while (0)
-
-#if !defined (__ASSEMBLY__)
-
-/* * switch_to(n) should switch tasks to task nr n, first
- * checking that n isn't the current task, in which case it does nothing.
- */
-extern void *_switch_to(void *last, void *next);
-
-#endif /* __ASSEMBLY__ */
-
-#define switch_to(prev,next,last) \
-do { \
- (last) = _switch_to(prev, next); \
-} while(0)
+#include <linux/stringify.h>
/*
* cmpxchg
@@ -158,27 +126,6 @@ __xchg(unsigned long x, volatile void * ptr, int size)
return x;
}
-extern void set_except_vector(int n, void *addr);
-
-static inline void spill_registers(void)
-{
- unsigned int a0, ps;
-
- __asm__ __volatile__ (
- "movi a14," __stringify (PS_EXCM_BIT) " | 1\n\t"
- "mov a12, a0\n\t"
- "rsr a13," __stringify(SAR) "\n\t"
- "xsr a14," __stringify(PS) "\n\t"
- "movi a0, _spill_registers\n\t"
- "rsync\n\t"
- "callx0 a0\n\t"
- "mov a0, a12\n\t"
- "wsr a13," __stringify(SAR) "\n\t"
- "wsr a14," __stringify(PS) "\n\t"
- :: "a" (&a0), "a" (&ps)
- : "a2", "a3", "a4", "a7", "a11", "a12", "a13", "a14", "a15", "memory");
-}
-
-#define arch_align_stack(x) (x)
+#endif /* __ASSEMBLY__ */
-#endif /* _XTENSA_SYSTEM_H */
+#endif /* _XTENSA_CMPXCHG_H */
diff --git a/arch/xtensa/include/asm/exec.h b/arch/xtensa/include/asm/exec.h
new file mode 100644
index 000000000000..af949e28cb32
--- /dev/null
+++ b/arch/xtensa/include/asm/exec.h
@@ -0,0 +1,14 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_EXEC_H
+#define _XTENSA_EXEC_H
+
+#define arch_align_stack(x) (x)
+
+#endif /* _XTENSA_EXEC_H */
diff --git a/arch/xtensa/include/asm/setup.h b/arch/xtensa/include/asm/setup.h
index e3636520d8cc..9fa8ad979361 100644
--- a/arch/xtensa/include/asm/setup.h
+++ b/arch/xtensa/include/asm/setup.h
@@ -13,4 +13,6 @@
#define COMMAND_LINE_SIZE 256
+extern void set_except_vector(int n, void *addr);
+
#endif
diff --git a/arch/xtensa/include/asm/switch_to.h b/arch/xtensa/include/asm/switch_to.h
new file mode 100644
index 000000000000..6b73bf0eb1ff
--- /dev/null
+++ b/arch/xtensa/include/asm/switch_to.h
@@ -0,0 +1,22 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SWITCH_TO_H
+#define _XTENSA_SWITCH_TO_H
+
+/* * switch_to(n) should switch tasks to task nr n, first
+ * checking that n isn't the current task, in which case it does nothing.
+ */
+extern void *_switch_to(void *last, void *next);
+
+#define switch_to(prev,next,last) \
+do { \
+ (last) = _switch_to(prev, next); \
+} while(0)
+
+#endif /* _XTENSA_SWITCH_TO_H */
diff --git a/arch/xtensa/include/asm/uaccess.h b/arch/xtensa/include/asm/uaccess.h
index 3fa526fd3c99..6e4bb3b791ab 100644
--- a/arch/xtensa/include/asm/uaccess.h
+++ b/arch/xtensa/include/asm/uaccess.h
@@ -17,7 +17,9 @@
#define _XTENSA_UACCESS_H
#include <linux/errno.h>
+#ifndef __ASSEMBLY__
#include <linux/prefetch.h>
+#endif
#include <asm/types.h>
#define VERIFY_READ 0