Date: Sat, 04 Jan 2014 16:23:12 -0500 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: Zbigniew Bodek <zbb@semihalf.com>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Cc: br@freebsd.org, Olivier Houchard <cognet@FreeBSD.org> Subject: Re: RFC: ARM related fixes - GIC, cache line size, PCI FDT & AHCI Message-ID: <52C87BC0.2060304@freebsd.org> In-Reply-To: <52B2D0F3.50100@semihalf.com> References: <52AF3D06.2000004@semihalf.com> <52AF760A.2030500@freebsd.org> <52B0900B.7020905@freebsd.org> <52B2D0F3.50100@semihalf.com>
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On 12/19/13 05:56, Zbigniew Bodek wrote: > On 17.12.2013 18:55, Nathan Whitehorn wrote: >> On 12/16/13 15:52, Nathan Whitehorn wrote: >>> On 12/16/13 11:48, Zbigniew Bodek wrote: >>>> Hello Everyone. >>>> >>>> We would like to submit some new patches recently developed by Semihalf. >>>> >>>> You can find them here: >>>> http://people.freebsd.org/~zbb/Semihalf/12.2013/ >>>> >>>> Detailed description is available in the commit logs but in general: >>>> >>>> -- 0001-Resolve-cache-line-size-using-CP15.patch >>>> - use cache line size acquired in runtime >>>> >>>> -- 0002-GIC-polarity-and-level-support.patch >>>> - suport for setting trigger level and polarity in GIC >>>> >>>> -- 0003-Add-PCI-FDT-interrupt-trigger-polarity-parsing.patch >>>> - trigger and polarity parsing for PCI FDT interrupts >>>> >>>> -- 0004-Do-not-attach-to-bridges-in-AHCI-driver.patch >>>> -- 0005-Use-only-mapped-BIOs-on-ARM.patch >>>> - Two patches enabling the AHCI driver on ARM chips >>>> >>>> >>>> We will appreciate if you could post your comments and/or remarks by the >>>> end of this week when we plan to commit the changes. >>>> >>>> Best regards >>>> zbb >>>> _______________________________________________ >>>> freebsd-arm@freebsd.org mailing list >>>> http://lists.freebsd.org/mailman/listinfo/freebsd-arm >>>> To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org" >>> Can you hold off on >>> 0003-Add-PCI-FDT-interrupt-trigger-polarity-parsing.patch for the time >>> being? I'm restructuring this code at the moment. >>> -Nathan >>> _______________________________________________ >>> freebsd-arm@freebsd.org mailing list >>> http://lists.freebsd.org/mailman/listinfo/freebsd-arm >>> To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org" >> This is done now. I have not updated the ARM code, because I don't know >> how it is supposed to work, but you can take a look at r259513 to >> powerpc/ofw/ofw_pci.c to see how the new stuff works. It relies on some >> device (nexus, for example) implementing OFW_BUS_CONFIG_INTR(), which >> takes an IRQ and a sense code, but that seems to be wrapped up in a lot >> of ARM-specific stuff. >> >> If you like, I can just write a piece of bridge code, but I don't want >> to interfere with in-flight things on your end. > > Hello Nathan. > > We will wait for your refactoring to finish so no worries. We can skip > this patch for now, the more that there were some comments to this one. > > Thanks and best regards > zbb > My restructuring is now done. I suspect ARM may want something like PowerPC's pic_if.m in the future, but the interfaces are now in place (ofw_bus_map_intr(), ofw_bus_config_intr()) to make that transition fairly painless later on. -Nathan
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