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Message-ID: <20110428192227.8979.49181.stgit@ponder>
Date: Thu, 28 Apr 2011 14:01:43 -0600
From: Grant Likely <grant.likely@...retlab.ca>
To: Michal Simek <monstr@...str.eu>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
linux-kernel@...r.kernel.org, Ralf Baechle <ralf@...ux-mips.org>,
hpa@...or.com, Dirk Brandewie <dirk.brandewie@...il.com>,
Thomas Gleixner <tglx@...utronix.de>
Cc: devicetree-discuss@...ts.ozlabs.org, x86@...nel.org,
linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 0/6] General device tree irq domain infrastructure
A lot of this series ends up being fixups to powerpc code; but the 4th
patch is of importance to every architecture using CONFIG_OF (except
SPARC, which has its own solution).
This series (finally!) factors out device tree irq domain decoding
from arch/powerpc and makes it generic for all architectures. The
infrastructure is quite simple. Any interrupt controller can embed
the of_irq_domain structure and register it with the core code. After
that, device nodes referencing interrupts on that device tree node
will trigger a call to the domain's map function.
PowerPC and x86 have been converted to use of_irq_domain. MIPS and
Microblaze have it enabled, but nothing actually registers domains
yet, so a workaround is in place to preserve the current behaviour
until it is fixed.
I'd really like to get patches 1-4 merged into 2.6.40. Please test.
I'm also running through build testing here, and when it's complete
I'll push it out to a 'devicetree/irq-domain' branch on
git://git.secretlab.ca/git/linux-2.6
It needs testing. I've booted it on a powerpc board here without any
apparent regressions, but that isn't a very big sample. I've also
build tested on everything I think is affected.
I'd also like to get it into linux-next. Ben, if things checkout okay
over the next few days, would you be okay with me adding it to
linux-next, say around Wednesday next week? As for merging, I think
this should probably go via your powerpc tree since the that's where
the bulk of the changes are, but I'm open to other suggestions).
Patches 5 & 6 are follow-on cleanup work to powerpc, but patch 6 is
RFC only since there is a locking problem that I haven't fixed yet.
Cheers,
g.
---
Grant Likely (6):
powerpc: stop exporting irq_map
powerpc: make irq_{alloc,free}_virt private and remove count argument
powerpc: Make struct irq_host semi-private by moving into irqhost.h
dt: generalize of_irq_parse_and_map()
powerpc: move irq_alloc_descs_at() call into irq_alloc_virt()
powerpc: use irq_alloc_desc() to manage irq allocations
arch/microblaze/kernel/irq.c | 7 -
arch/microblaze/kernel/setup.c | 2
arch/mips/kernel/prom.c | 14 -
arch/powerpc/include/asm/irq.h | 88 +------
arch/powerpc/include/asm/irqhost.h | 27 ++
arch/powerpc/kernel/irq.c | 260 ++++++++++++----------
arch/powerpc/platforms/512x/mpc5121_ads_cpld.c | 5
arch/powerpc/platforms/52xx/media5200.c | 5
arch/powerpc/platforms/52xx/mpc52xx_gpt.c | 1
arch/powerpc/platforms/52xx/mpc52xx_pic.c | 80 +------
arch/powerpc/platforms/82xx/pq2ads-pci-pic.c | 5
arch/powerpc/platforms/85xx/socrates_fpga_pic.c | 26 +-
arch/powerpc/platforms/86xx/gef_pic.c | 10 -
arch/powerpc/platforms/8xx/m8xx_setup.c | 2
arch/powerpc/platforms/cell/axon_msi.c | 15 +
arch/powerpc/platforms/cell/spider-pic.c | 19 +-
arch/powerpc/platforms/embedded6xx/flipper-pic.c | 9 -
arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 9 -
arch/powerpc/platforms/embedded6xx/wii.c | 6 -
arch/powerpc/platforms/iseries/irq.c | 10 -
arch/powerpc/platforms/powermac/pic.c | 12 +
arch/powerpc/platforms/pseries/ras.c | 4
arch/powerpc/platforms/pseries/xics.c | 14 +
arch/powerpc/sysdev/cpm1.c | 8 -
arch/powerpc/sysdev/cpm2_pic.c | 10 -
arch/powerpc/sysdev/fsl_msi.c | 3
arch/powerpc/sysdev/i8259.c | 3
arch/powerpc/sysdev/ipic.c | 19 +-
arch/powerpc/sysdev/mpc8xx_pic.c | 10 -
arch/powerpc/sysdev/mpc8xxx_gpio.c | 13 +
arch/powerpc/sysdev/mpic.c | 33 +--
arch/powerpc/sysdev/mpic_msi.c | 3
arch/powerpc/sysdev/mpic_pasemi_msi.c | 5
arch/powerpc/sysdev/mv64x60_pic.c | 14 +
arch/powerpc/sysdev/qe_lib/qe_ic.c | 9 -
arch/powerpc/sysdev/uic.c | 13 +
arch/powerpc/sysdev/xilinx_intc.c | 9 -
arch/x86/include/asm/irq_controller.h | 12 -
arch/x86/include/asm/prom.h | 1
arch/x86/kernel/devicetree.c | 77 +------
drivers/of/irq.c | 118 ++++++++++
include/linux/of_irq.h | 31 +++
42 files changed, 504 insertions(+), 517 deletions(-)
create mode 100644 arch/powerpc/include/asm/irqhost.h
delete mode 100644 arch/x86/include/asm/irq_controller.h
--
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