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authorMichal Simek <monstr@monstr.eu>2009-10-30 12:26:53 +0100
committerMichal Simek <monstr@monstr.eu>2009-12-14 08:40:09 +0100
commita3cd613b2e775eb59816c2c7c49c038d54917208 (patch)
treeb09d3a2db09096b9bcc860f7639851db87ae3ef7 /arch/microblaze/include
parentmicroblaze: preliminary enabling for LATENCYTOP support in Kconfig (diff)
downloadlinux-a3cd613b2e775eb59816c2c7c49c038d54917208.tar.xz
linux-a3cd613b2e775eb59816c2c7c49c038d54917208.zip
microblaze: Add TRACE_IRQFLAGS_SUPPORT
There are just two major changes Renamed local_irq functions to raw_local_irq in irq.c. Added TRACE_IRQFLAGS_SUPPORT to Kconfig.debug. Look at Documentation/irqflags-tracing.txt Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/include')
-rw-r--r--arch/microblaze/include/asm/irqflags.h112
1 files changed, 50 insertions, 62 deletions
diff --git a/arch/microblaze/include/asm/irqflags.h b/arch/microblaze/include/asm/irqflags.h
index dea65645a4f8..2c38c6d80176 100644
--- a/arch/microblaze/include/asm/irqflags.h
+++ b/arch/microblaze/include/asm/irqflags.h
@@ -10,78 +10,73 @@
#define _ASM_MICROBLAZE_IRQFLAGS_H
#include <linux/irqflags.h>
+#include <asm/registers.h>
# if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
-# define local_irq_save(flags) \
+# define raw_local_irq_save(flags) \
do { \
- asm volatile ("# local_irq_save \n\t" \
- "msrclr %0, %1 \n\t" \
- "nop \n\t" \
+ asm volatile (" msrclr %0, %1; \
+ nop;" \
: "=r"(flags) \
: "i"(MSR_IE) \
: "memory"); \
} while (0)
-# define local_irq_disable() \
- do { \
- asm volatile ("# local_irq_disable \n\t" \
- "msrclr r0, %0 \n\t" \
- "nop \n\t" \
- : \
- : "i"(MSR_IE) \
- : "memory"); \
+# define raw_local_irq_disable() \
+ do { \
+ asm volatile (" msrclr r0, %0; \
+ nop;" \
+ : \
+ : "i"(MSR_IE) \
+ : "memory"); \
} while (0)
-# define local_irq_enable() \
- do { \
- asm volatile ("# local_irq_enable \n\t" \
- "msrset r0, %0 \n\t" \
- "nop \n\t" \
- : \
- : "i"(MSR_IE) \
- : "memory"); \
+# define raw_local_irq_enable() \
+ do { \
+ asm volatile (" msrset r0, %0; \
+ nop;" \
+ : \
+ : "i"(MSR_IE) \
+ : "memory"); \
} while (0)
# else /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR == 0 */
-# define local_irq_save(flags) \
+# define raw_local_irq_save(flags) \
do { \
register unsigned tmp; \
- asm volatile ("# local_irq_save \n\t" \
- "mfs %0, rmsr \n\t" \
- "nop \n\t" \
- "andi %1, %0, %2 \n\t" \
- "mts rmsr, %1 \n\t" \
- "nop \n\t" \
+ asm volatile (" mfs %0, rmsr; \
+ nop; \
+ andi %1, %0, %2; \
+ mts rmsr, %1; \
+ nop;" \
: "=r"(flags), "=r" (tmp) \
: "i"(~MSR_IE) \
: "memory"); \
} while (0)
-# define local_irq_disable() \
+# define raw_local_irq_disable() \
do { \
register unsigned tmp; \
- asm volatile ("# local_irq_disable \n\t" \
- "mfs %0, rmsr \n\t" \
- "nop \n\t" \
- "andi %0, %0, %1 \n\t" \
- "mts rmsr, %0 \n\t" \
- "nop \n\t" \
+ asm volatile (" mfs %0, rmsr; \
+ nop; \
+ andi %0, %0, %1; \
+ mts rmsr, %0; \
+ nop;" \
: "=r"(tmp) \
: "i"(~MSR_IE) \
: "memory"); \
} while (0)
-# define local_irq_enable() \
+# define raw_local_irq_enable() \
do { \
register unsigned tmp; \
- asm volatile ("# local_irq_enable \n\t" \
- "mfs %0, rmsr \n\t" \
- "nop \n\t" \
- "ori %0, %0, %1 \n\t" \
- "mts rmsr, %0 \n\t" \
- "nop \n\t" \
+ asm volatile (" mfs %0, rmsr; \
+ nop; \
+ ori %0, %0, %1; \
+ mts rmsr, %0; \
+ nop;" \
: "=r"(tmp) \
: "i"(MSR_IE) \
: "memory"); \
@@ -89,35 +84,28 @@
# endif /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
-#define local_save_flags(flags) \
+#define raw_local_irq_restore(flags) \
do { \
- asm volatile ("# local_save_flags \n\t" \
- "mfs %0, rmsr \n\t" \
- "nop \n\t" \
- : "=r"(flags) \
+ asm volatile (" mts rmsr, %0; \
+ nop;" \
: \
+ : "r"(flags) \
: "memory"); \
} while (0)
-#define local_irq_restore(flags) \
- do { \
- asm volatile ("# local_irq_restore \n\t"\
- "mts rmsr, %0 \n\t" \
- "nop \n\t" \
- : \
- : "r"(flags) \
- : "memory"); \
- } while (0)
-
-static inline int irqs_disabled(void)
+static inline unsigned long get_msr(void)
{
unsigned long flags;
-
- local_save_flags(flags);
- return ((flags & MSR_IE) == 0);
+ asm volatile (" mfs %0, rmsr; \
+ nop;" \
+ : "=r"(flags) \
+ : \
+ : "memory"); \
+ return flags;
}
-#define raw_irqs_disabled irqs_disabled
-#define raw_irqs_disabled_flags(flags) ((flags) == 0)
+#define raw_local_save_flags(flags) ((flags) = get_msr())
+#define raw_irqs_disabled() ((get_msr() & MSR_IE) == 0)
+#define raw_irqs_disabled_flags(flags) ((flags & MSR_IE) == 0)
#endif /* _ASM_MICROBLAZE_IRQFLAGS_H */