Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1308411
| From | Tomasz Nowicki <tn@semihalf.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH V3 06/21] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y |
| Date | 2016-01-13 14:30 +0100 |
| Message-ID | <qQtEU-hT-71@gated-at.bofh.it> (permalink) |
| References | <qQtES-hT-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
In drivers/xen/pci.c, there are arch x86 dependent codes when CONFIG_PCI_MMCONFIG is enabled, since CONFIG_PCI_MMCONFIG depends on ACPI, so this will prevent XEN PCI running on other architectures using ACPI with PCI_MMCONFIG enabled (such as ARM64). Fortunatly, it can be sloved in a simple way. In drivers/xen/pci.c, the only x86 dependent code is if ((pci_probe & PCI_PROBE_MMCONF) == 0), and it's defined in asm/pci_x86.h, the code means that if the PCI resource is not probed in PCI_PROBE_MMCONF way, just ingnore the xen mcfg init. Actually this is duplicate, because if PCI resource is not probed in PCI_PROBE_MMCONF way, the pci_mmconfig_list will be empty, and the if (list_empty()) after it will do the same job. So just remove the arch related code and the head file, this will be no functional change for x86, and also makes xen/pci.c usable for other architectures. Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> CC: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Tested-by: Jeremy Linton <jeremy.linton@arm.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> --- drivers/xen/pci.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c index 6785ebb..9a8dbe3 100644 --- a/drivers/xen/pci.c +++ b/drivers/xen/pci.c @@ -28,9 +28,6 @@ #include <asm/xen/hypervisor.h> #include <asm/xen/hypercall.h> #include "../pci/pci.h" -#ifdef CONFIG_PCI_MMCONFIG -#include <asm/pci_x86.h> -#endif static bool __read_mostly pci_seg_supported = true; @@ -222,9 +219,6 @@ static int __init xen_mcfg_late(void) if (!xen_initial_domain()) return 0; - if ((pci_probe & PCI_PROBE_MMCONF) == 0) - return 0; - if (list_empty(&pci_mmcfg_list)) return 0; -- 1.9.1
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2016-01-13 14:30 +0100
[PATCH V3 18/21] ACPI, PCI: Refine the way to handle translation_offset for ACPI resources Tomasz Nowicki <tn@semihalf.com> - 2016-01-13 14:30 +0100
Re: [PATCH V3 18/21] ACPI, PCI: Refine the way to handle translation_offset for ACPI resources Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-01-14 13:20 +0100
[PATCH V3 02/21] x86, pci, acpi: Move arch-agnostic MMCONFIG (aka ECAM) and ACPI code out of arch/x86/ directory Tomasz Nowicki <tn@semihalf.com> - 2016-01-13 14:30 +0100
[PATCH V3 17/21] acpi, mcfg: Add default PCI config accessors implementation and initial support for related quirks. Tomasz Nowicki <tn@semihalf.com> - 2016-01-13 14:30 +0100
[PATCH V3 13/21] pci, acpi: Provide generic way to assign bus domain number. Tomasz Nowicki <tn@semihalf.com> - 2016-01-13 14:30 +0100
[PATCH V3 06/21] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y Tomasz Nowicki <tn@semihalf.com> - 2016-01-13 14:30 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2016-01-13 16:30 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Sinan Kaya <okaya@codeaurora.org> - 2016-01-13 16:30 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Graeme Gregory <gg@slimlogic.co.uk> - 2016-01-14 14:50 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Mark Salter <msalter@redhat.com> - 2016-01-14 15:10 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Graeme Gregory <gg@slimlogic.co.uk> - 2016-01-14 15:20 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Mark Salter <msalter@redhat.com> - 2016-01-14 15:30 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Catalin Marinas <catalin.marinas@arm.com> - 2016-01-14 15:10 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Mark Salter <msalter@redhat.com> - 2016-01-14 15:20 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Catalin Marinas <catalin.marinas@arm.com> - 2016-01-14 16:00 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Mark Salter <msalter@redhat.com> - 2016-01-14 16:10 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Sinan Kaya <okaya@codeaurora.org> - 2016-01-14 16:40 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-01-14 17:20 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Mark Salter <msalter@redhat.com> - 2016-01-14 17:40 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-01-14 18:10 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Mark Salter <msalter@redhat.com> - 2016-01-14 18:40 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-01-14 19:00 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Mark Salter <msalter@redhat.com> - 2016-01-14 19:50 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Mark Salter <msalter@redhat.com> - 2016-01-14 16:40 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Jeremy Linton <jeremy.linton@arm.com> - 2016-01-15 00:00 +0100
Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Jeremy Linton <jeremy.linton@arm.com> - 2016-01-15 00:00 +0100
csiph-web