Messages in this thread | | | Date | Fri, 10 Jul 2009 15:17:53 +0800 | From | Feng Tang <> | Subject | Re: [PATCH 11/12] SFI, PCI: Hook MMCONFIG |
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On Fri, 10 Jul 2009 13:52:29 +0800 Ingo Molnar <mingo@elte.hu> wrote:
> > > @@ -606,7 +607,9 @@ static void __init __pci_mmcfg_init(int early) > > } > > > > if (!known_bridge) > > - acpi_table_parse(ACPI_SIG_MCFG, pci_parse_mcfg); > > + if (acpi_table_parse(ACPI_SIG_MCFG, > > pci_parse_mcfg)) > > + sfi_acpi_table_parse(ACPI_SIG_MCFG, NULL, > > NULL, 0, > > + pci_parse_mcfg); > > Please introduce one common/generic helper: > > x86_table_parse(ACPI_SIG_MCFG, pci_parse_mcfg); > > and do the fallback in that helper. We generally want to try ACPI > first, SFI second. That helper makes it easier to add such fallback > in other places as well, and will de-uglify the above code as well. >
Should we have a new acpi_sfi.c or .h to contain all these helper functions? I think it is not appropriate to put it to either ACPI or SFI code.
Also, ACPI and SFI code under arch/x86/kernel have lots of similar code in cpu/io-apic parsing, we thought about extracting these sharable codes out and move them to apic.c/io_apic.c, but don't know if this will uglify current apic/ioapic code? how do you think about it?
Thanks, Feng
> Ingo
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