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[POWERPC] irqtrace support for 64-bit powerpc

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This adds the low level irq tracing hooks to the powerpc architecture
needed to enable full lockdep functionality.

This is partly based on Johannes Berg's initial version.  I removed
the asm trampoline that isn't needed (thus improving performance) and
modified all sorts of bits and pieces, reworking most of the assembly,
etc...

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt 2008-04-17 14:35:01 +10:00 • committed by Paul Mackerras
parent fd3e0bbc60
commit 945feb174b
11 changed files with 136 additions and 54 deletions
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3
arch/powerpc/kernel/irq.c
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@ -114,7 +114,7 @@ static inline void set_soft_enabled(unsigned long enable)
: : "r" (enable), "i" (offsetof(struct paca_struct, soft_enabled)));
}
void local_irq_restore(unsigned long en)
void raw_local_irq_restore(unsigned long en)
{
/*
* get_paca()->soft_enabled = en;
@ -174,6 +174,7 @@ void local_irq_restore(unsigned long en)
__hard_irq_enable();
}
EXPORT_SYMBOL(raw_local_irq_restore);
#endif /* CONFIG_PPC64 */
int show_interrupts(struct seq_file *p, void *v)