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author | Michael Ellerman <michael@ellerman.id.au> | 2008-05-23 14:21:30 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2008-05-23 15:27:28 +1000 |
commit | 72cac213fda6a2dd402e91692b70e175795eab7d (patch) | |
tree | 2cf09cccac05f0ef194be3627c0b83385909ca7d /arch/powerpc/sysdev/mpic.c | |
parent | 475ca391b490a683d66bf19999a8a7a24913f139 (diff) | |
download | kernel_samsung_smdk4412-72cac213fda6a2dd402e91692b70e175795eab7d.zip kernel_samsung_smdk4412-72cac213fda6a2dd402e91692b70e175795eab7d.tar.gz kernel_samsung_smdk4412-72cac213fda6a2dd402e91692b70e175795eab7d.tar.bz2 |
[POWERPC] Add debugging trigger to Axon MSI code
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>
Diffstat (limited to 'arch/powerpc/sysdev/mpic.c')
0 files changed, 0 insertions, 0 deletions