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 _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss