Messages in this thread | | | Subject | Re: [PATCH V3 19/21] pci, acpi: Support for ACPI based generic PCI host controller init | From | Tomasz Nowicki <> | Date | Mon, 18 Jan 2016 10:57:41 +0100 |
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On 15.01.2016 10:57, Hanjun Guo wrote: > Hi Tomasz, > > On 2016/1/13 21:21, Tomasz Nowicki wrote: >> Because of two patch series: >> 1. Jiang Liu's common interface to support PCI host controller init >> 2. MMCONFIG refactoring (part of this patch set) >> now we can think about generic ACPI based PCI host controller init >> implementation out of arch/ directory. >> >> These calls use information from MCFG table (PCI config space regions) >> and _CRS method (IO/irq resources) to initialize PCI hostbridge. >> >> TBD: We are still not sure whether we should reassign resources >> after PCI bus enumeration or trust firmware to do all that work for >> us properly. >> >> Signed-off-by: Tomasz Nowicki <tn@semihalf.com> >> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> >> Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> >> CC: Arnd Bergmann <arnd@arndb.de> >> CC: Catalin Marinas <catalin.marinas@arm.com> >> CC: Liviu Dudau <Liviu.Dudau@arm.com> >> CC: Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com> >> CC: Will Deacon <will.deacon@arm.com> >> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> >> Tested-by: Jeremy Linton <jeremy.linton@arm.com> >> --- >> drivers/acpi/Kconfig | 5 ++ >> drivers/acpi/pci_root.c | 131 >> ++++++++++++++++++++++++++++++++++++++++++++++++ >> 2 files changed, 136 insertions(+) >> >> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig >> index c3664be..e315061 100644 >> --- a/drivers/acpi/Kconfig >> +++ b/drivers/acpi/Kconfig >> @@ -335,6 +335,11 @@ config ACPI_PCI_SLOT >> i.e., segment/bus/device/function tuples, with physical slots in >> the system. If you are unsure, say N. >> >> +config ACPI_PCI_HOST_GENERIC >> + bool "Generic ACPI PCI host controller" >> + help >> + Say Y here if you want to support generic ACPI PCI host >> controller. > > Since x86 and IA64 will not use ACPI_PCI_HOST_GENERIC in this > patch, it should be defined as > > config ACPI_PCI_HOST_GENERIC > bool > > and select for ARCHs, or will default y on x86 and IA64 too.
Right, I will fix that in v4.
> > Compiling the kernel on a IA64 machine, will send out the > result when it's ready. >
Thanks, Tomasz
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