The patch titled
AVR32: Add support for irq-flags state tracing
has been added to the -mm tree. Its filename is
avr32-add-support-for-irq-flags-state-tracing.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: AVR32: Add support for irq-flags state tracing
From: Haavard Skinnemoen <hskinnemoen@xxxxxxxxx>
Move the irq-flags manipulation to asm/irqflags.h, add the required raw_
prefix and define TRACE_IRQFLAGS_SUPPORT.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/avr32/Kconfig.debug | 4 +
include/asm-avr32/irqflags.h | 68 +++++++++++++++++++++++++++++++++
include/asm-avr32/system.h | 32 ---------------
3 files changed, 73 insertions(+), 31 deletions(-)
diff -puN arch/avr32/Kconfig.debug~avr32-add-support-for-irq-flags-state-tracing arch/avr32/Kconfig.debug
--- a/arch/avr32/Kconfig.debug~avr32-add-support-for-irq-flags-state-tracing
+++ a/arch/avr32/Kconfig.debug
@@ -1,5 +1,9 @@
menu "Kernel hacking"
+config TRACE_IRQFLAGS_SUPPORT
+ bool
+ default y
+
source "lib/Kconfig.debug"
config KPROBES
diff -puN /dev/null include/asm-avr32/irqflags.h
--- /dev/null
+++ a/include/asm-avr32/irqflags.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_IRQFLAGS_H
+#define __ASM_AVR32_IRQFLAGS_H
+
+#include <asm/sysreg.h>
+
+static inline unsigned long __raw_local_save_flags(void)
+{
+ return sysreg_read(SR);
+}
+
+#define raw_local_save_flags(x) \
+ do { (x) = __raw_local_save_flags(); } while (0)
+
+/*
+ * This will restore ALL status register flags, not only the interrupt
+ * mask flag.
+ *
+ * The empty asm statement informs the compiler of this fact while
+ * also serving as a barrier.
+ */
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+ sysreg_write(SR, flags);
+ asm volatile("" : : : "memory", "cc");
+}
+
+static inline void raw_local_irq_disable(void)
+{
+ asm volatile("ssrf %0" : : "n"(SYSREG_GM_OFFSET) : "memory");
+}
+
+static inline void raw_local_irq_enable(void)
+{
+ asm volatile("csrf %0" : : "n"(SYSREG_GM_OFFSET) : "memory");
+}
+
+static inline int raw_irqs_disabled_flags(unsigned long flags)
+{
+ return (flags & SYSREG_BIT(GM)) != 0;
+}
+
+static inline int raw_irqs_disabled(void)
+{
+ unsigned long flags = __raw_local_save_flags();
+
+ return raw_irqs_disabled_flags(flags);
+}
+
+static inline unsigned long __raw_local_irq_save(void)
+{
+ unsigned long flags = __raw_local_save_flags();
+
+ raw_local_irq_disable();
+
+ return flags;
+}
+
+#define raw_local_irq_save(flags) \
+ do { (flags) = __raw_local_irq_save(); } while (0)
+
+#endif /* __ASM_AVR32_IRQFLAGS_H */
diff -puN include/asm-avr32/system.h~avr32-add-support-for-irq-flags-state-tracing include/asm-avr32/system.h
--- a/include/asm-avr32/system.h~avr32-add-support-for-irq-flags-state-tracing
+++ a/include/asm-avr32/system.h
@@ -69,37 +69,7 @@ extern struct task_struct *__switch_to(s
# define smp_read_barrier_depends() do { } while(0)
#endif
-/* Interrupt Control */
-
-#define local_irq_enable() \
- asm volatile("csrf %0" : : "n"(SR_GM_BIT) : "memory")
-#define local_irq_disable() \
- asm volatile ("ssrf %0" : : "n"(SR_GM_BIT) : "memory")
-#define local_save_flags(x) ((x) = sysreg_read(SR))
-#define irqs_disabled() \
- ({ \
- unsigned long flags; \
- local_save_flags(flags); \
- ((flags & SR_GM) != 0); \
- })
-
-/*
- * This will restore ALL status register flags, not only the interrupt
- * mask flag.
- *
- * The empty asm statement informs the compiler of this fact (it also
- * serves as a barrier).
- */
-#define local_irq_restore(x) \
- do { \
- sysreg_write(SR, (x)); \
- asm volatile("" : : : "memory", "cc"); \
- } while(0)
-#define local_irq_save(flags) \
- do { \
- local_save_flags(flags); \
- local_irq_disable(); \
- } while(0)
+#include <linux/irqflags.h>
extern void __xchg_called_with_bad_pointer(void);
_
Patches currently in -mm which might be from hskinnemoen@xxxxxxxxx are
avr32-arch.patch
avr32-config_debug_bugverbose-and-config_frame_pointer.patch
avr32-fix-invalid-constraints-for-stcond.patch
avr32-add-support-for-irq-flags-state-tracing.patch
avr32-turn-off-support-for-discontigmem-and-sparsemem.patch
avr32-always-enable-config_embedded.patch
avr32-export-the-find__bit-functions.patch
avr32-add-defconfig-for-at32stk1002.patch
-
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