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This adds some debugging code to the Axon MSI driver. It creates a file per MSIC in /sys/kernel/debug/powerpc, which allows the user to trigger a fake MSI interrupt by writing to the file. This can be used to test some of the MSI generation path. In particular, that the MSIC recognises a write to the MSI address, generates an interrupt and writes the MSI packet into the ring buffer. All the code is inside #ifdef DEBUG so it causes no harm unless it's enabled. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> |
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| .. | ||
| boot | ||
| configs | ||
| kernel | ||
| kvm | ||
| lib | ||
| math-emu | ||
| mm | ||
| oprofile | ||
| platforms | ||
| sysdev | ||
| xmon | ||
| .gitignore | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||