linux/arch/sh
Magnus Damm bdaa6e8062 sh: multiple vectors per irq - base
Instead of keeping the single vector -> single linux irq mapping
we extend the intc code to support merging of vectors to a single
linux irq. This helps processors such as sh7750, sh7780 and sh7785
which have more vectors than masking ability. With this patch in
place we can modify the intc tables to use one irq per maskable
irq source. Please note the following:

 - If multiple vectors share the same enum then only the
   first vector will be available as a linux irq.

 - Drivers may need to be rewritten to get pending irq
   source from the hardware block instead of irq number.

This patch together with the sh7785 specific intc tables solves
DMA controller irq issues related to buggy interrupt masking.

Reported-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:53:50 +09:00
..
boards sh: shared register saving code for sh3/sh4/sh4a 2009-02-27 16:26:10 +09:00
boot sh: FTRACE renamed to FUNCTION_TRACER. 2008-10-31 16:20:36 +09:00
cchips sh: Switch HD64461 from hw_interrupt_type to irq_chip 2008-12-22 18:43:50 +09:00
configs sh: ap325rxa: Enable ov772x in defconfig. 2009-01-29 11:56:02 +09:00
drivers PCI: sh: use generic INTx swizzle from PCI core 2009-01-07 11:13:15 -08:00
include sh: Disable unsupportable prefetching on SH-3. 2009-02-27 16:42:05 +09:00
kernel sh: multiple vectors per irq - base 2009-02-27 16:53:50 +09:00
lib sh: Handle calling csum_partial with misaligned data 2009-01-29 11:56:02 +09:00
lib64 sh: Provide sdivsi3/udivsi3/udivdi3 for sh64, kill off libgcc linking. 2008-12-22 18:44:05 +09:00
math-emu sh: Fix up the math-emu build. 2007-06-11 15:57:42 +09:00
mm sh: fix P4 iounmap() pass-through 2009-02-27 16:50:00 +09:00
oprofile sh: oprofile: Fix up the module build. 2008-12-22 19:32:27 +09:00
tools sh: Consolidate rsk7203/7201 in to a new mach-rsk. 2008-12-22 18:44:02 +09:00
Kconfig sh: Restrict old CMT timer code to SH-2/SH-2A. 2009-02-04 15:28:06 +09:00
Kconfig.cpu sh: Disable big endian for SH-5. 2008-02-14 14:22:10 +09:00
Kconfig.debug sh: Conditionalize the code dumper on CONFIG_DUMP_CODE. 2008-12-22 18:44:47 +09:00
Makefile sh: mach-rsk: Use uImage generation by default for rsk7201/7203. 2008-12-22 18:44:49 +09:00