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parisc: Fix interrupt routing for C8000 serial ports

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We can't use dev->mod_index for selecting the interrupt routing entry,
because it's not an index into interrupt routing table. It will be even
wrong on a machine with 2 CPUs (4 cores). But all needed information is
contained in the PAT entries for the serial ports. mod[0] contains the
iosapic address and mod_info has some indications for the interrupt
input (at least it looks like it). This patch implements the searching
for the right iosapic and uses this interrupt input information.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Thomas Bogendoerfer
2013-07-30 02:02:16 +02:00
committed by Helge Deller
parent 5a0ce2dc21
commit dd5e6d6a3d
4 changed files with 32 additions and 13 deletions
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arch/parisc/kernel/inventory.c
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@@ -211,6 +211,7 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
/* REVISIT: who is the consumer of this? not sure yet... */
dev->mod_info = pa_pdc_cell->mod_info; /* pass to PAT_GET_ENTITY() */
dev->pmod_loc = pa_pdc_cell->mod_location;
dev->mod0 = pa_pdc_cell->mod[0];
register_parisc_device(dev); /* advertise device */