Date: Sat, 29 Sep 2007 13:11:39 -0700 From: "Don L. Belcher" <don@siad.net> To: Kurt Jaeger <lists@c0mplx.org> Cc: freebsd-current@freebsd.org Subject: Re: PCI to PCI Bridge initialization fails or is corrupted Message-ID: <46FEB17B.6030702@siad.net> In-Reply-To: <20070928181317.GA12479@home.c0mplx.org> References: <46F5B918.5040804@siad.net> <46FD2CFF.4000300@siad.net> <20070928181317.GA12479@home.c0mplx.org>
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Kurt Jaeger wrote: >Hi! > > > >>If somebody could point out to me where the prefetch decode >>occurs in the code, this would be a big help. >> >> > >I assume you have > >sys/dev/pci/pci_pci.c, version 1.49 > > Yes this is the version I currently have. >http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/pci/pci_pci.c?rev=1.49;content-type=text%2Fplain > >In line 183f, sc->pmembase is set: > > sc->pmembase = PCI_PPBMEMBASE(pci_read_config(dev, PCIR_PMBASEH_1, 4), > pci_read_config(dev, PCIR_PMBASEL_1, 2)); > >and if sc->pmembase is set, the function call to pcib_is_prefetch_open() >leads to the result you are looking for in line 267: > > if (pcib_is_prefetch_open(sc)) > device_printf(dev, " prefetched decode 0x%jx-0x%jx\n", > (uintmax_t)sc->pmembase, (uintmax_t)sc->pmemlimit); > >But why the pci_read_config() returns something different, I do not know. > > > What I meant was where is the hardware initialize at (for the prefetch decode), this code is working as far I could tell. The prefetch decode in the hardware is set to 0. Would any body know if following errors could be causing the failure? acpi0: reservation of 0, a0000 (3) failed acpi0: reservation of 100000, 7f00000 (3) failed
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