From: Michael Ellerman Date: Tue, 8 May 2007 02:58:37 +0000 (+1000) Subject: [POWERPC] MPIC U3/U4 MSI backend X-Git-Tag: v2.6.22-rc1~358^2~5 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05af7bd2d75e5098021864d83fbb831111755fa0;p=pandora-kernel.git [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 Signed-off-by: Paul Mackerras --- Reading git-diff-tree failed