Date: Thu, 06 Dec 2007 22:31:55 -0500 From: Coleman Kane <cokane@FreeBSD.org> To: Gary Corcoran <gcorcoran@rcn.com> Cc: freebsd-hackers@freebsd.org Subject: Re: Overlap in PCI memory ranges Message-ID: <4758BEAB.6020306@FreeBSD.org> In-Reply-To: <4758B6E8.7030502@rcn.com> References: <475897DB.1010308@FreeBSD.org> <4758B6E8.7030502@rcn.com>
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Gary Corcoran wrote: > Coleman Kane wrote: >> Hello all, >> >> I've got a problem with overlapping PCI memory ranges between my SATA >> controller and my High-Def Audio controller: >> >> atapci1: <ATI IXP600 UDMA133 controller> port >> 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x5040-0x504f irq 16 at device 20.1 >> on pci0 >> pcm0: <ATI SB600 High Definition Audio Controller> mem >> 0xd0608000-0xd060bfff irq 16 at device 20.2 on pci0 > > Sorry, I couldn't help you even if I saw the problem, but I can't see any > overlap in the above. I see a bunch of relatively low addresses, and one > high memory address range. Where's the conflict ?? > > Gary > >> I am curious if anybody knows of any way to overwrite the boot-up memory >> range in the PCI configuration. I have tried: >> pciconf -w pci0:0:20:2 16 0xd0614004 >> >> after inpecting that the above PCI reg's value before this is >> 0xd0608004. It seems that if I try writing the config register to >> anything between d0608000 and d0614000, the register gets reverted back >> to 0xd0608004. If I go higher than 0xd0614004, then it gets reverted to >> that number. >> >> I am not very familiar with PCI configuration (or other facilities >> FreeBSD uses to assign resources to PCI devices), so I'd like to know if >> anybody can help me sort this problem out which is preventing AHCI and >> HDA-Audio from working... >> >> -- >> Coleman Kane > My apologies. The lines *should* read (mem ranges overlap): atapci0: <ATI IXP600 SATA300 controller> port 0x9000-0x9007,0x9008-0x900b,0x9010-0x9017,0x5018-0x501b,0x5020-0x502f mem 0xd0609000-0xd06093ff irq 16 at device 18.0 on pci0 ..... pcm0: <ATI SB600 High Definition Audio Controller> mem 0xd0608000-0xd060bfff irq 16 at device 20.2 on pci0 -- Coleman Kane
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