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| author | Michael Ellerman <michael@ellerman.id.au> | 2007-08-28 10:47:57 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-09-13 17:33:20 +0200 |
| commit | 60b332e755da7dbf32f1660973ce4f97ebf05d05 (patch) | |
| tree | 0f13a0e4c80b668c386cbb5a3766cb607e8166f8 /arch/powerpc/Kconfig.debug | |
| parent | [POWERPC] Initialise hwirq for legacy irqs (diff) | |
| download | linux-60b332e755da7dbf32f1660973ce4f97ebf05d05.tar.xz linux-60b332e755da7dbf32f1660973ce4f97ebf05d05.zip | |
[POWERPC] Export virq mapping via debugfs
This adds a debugfs file "powerpc/virq_mapping", which shows the virtual
to real mapping of irq numbers. Enable it with CONFIG_VIRQ_DEBUG.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Chen Gong <G.Chen@freescale.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/Kconfig.debug')
| -rw-r--r-- | arch/powerpc/Kconfig.debug | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index 22acece95b11..c38bc2237057 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -124,6 +124,16 @@ config IRQSTACKS for handling hard and soft interrupts. This can help avoid overflowing the process kernel stacks. +config VIRQ_DEBUG + bool "Expose hardware/virtual IRQ mapping via debugfs" + depends on DEBUG_FS && PPC_MERGE + help + This option will show the mapping relationship between hardware irq + numbers and virtual irq numbers. The mapping is exposed via debugfs + in the file powerpc/virq_mapping. + + If you don't know what this means you don't need it. + config BDI_SWITCH bool "Include BDI-2000 user context switcher" depends on DEBUG_KERNEL && PPC32 |