diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2007-05-08 12:58:37 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-05-08 13:46:48 +1000 |
| commit | 05af7bd2d75e5098021864d83fbb831111755fa0 (patch) | |
| tree | c5319ce0410fdf732679175fa5a4df25cbb0e830 /arch/powerpc/kernel/head_44x.S | |
| parent | a7de7c74227edda719b257eb15aecd73790ff894 (diff) | |
[POWERPC] MPIC U3/U4 MSI backend
MPIC U3/U4 MSI backend. Based on code from Segher, heavily hacked by me.
This only deals with MSI on U3/U4 MPICs, aka. CPC 9x5.
If we find a U3/U4 then we enable this backend, ie. take over the ppc_md
MSI hooks. We might need more elaborate logic in future to decide which
backend is enabled.
We need our own irq_chip so that we can do MSI masking/unmasking on
the device itself. We also need to mask explicitly on shutdown to make
sure we don't get bitten by lazy-disable semantics.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/head_44x.S')
0 files changed, 0 insertions, 0 deletions