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[PATCH V2 08/23] arm64, acpi: Use empty PCI config space accessors from mcfg.c file.

From Tomasz Nowicki <tn@semihalf.com>
Newsgroups linux.kernel
Subject [PATCH V2 08/23] arm64, acpi: Use empty PCI config space accessors from mcfg.c file.
Date 2015-12-16 16:30 +0100
Message-ID <qGmbF-3tz-45@gated-at.bofh.it> (permalink)
References <qGm1X-3p8-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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We can now use previously prepared empty ACPI RAW accessors
and cleanup a bit before adding full support for PCI host bridge driver.

Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
---
 arch/arm64/Kconfig      |  6 ++++++
 arch/arm64/kernel/pci.c | 15 ---------------
 2 files changed, 6 insertions(+), 15 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 871f217..d65d315 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -92,6 +92,7 @@ config ARM64
 	select SPARSE_IRQ
 	select SYSCTL_EXCEPTION_TRACE
 	select HAVE_CONTEXT_TRACKING
+	select HAVE_PCI_ECAM
 	help
 	  ARM 64-bit (AArch64) Linux support.
 
@@ -207,6 +208,11 @@ source "drivers/pci/Kconfig"
 source "drivers/pci/pcie/Kconfig"
 source "drivers/pci/hotplug/Kconfig"
 
+config PCI_MMCONFIG
+	def_bool y
+	select PCI_ECAM
+	depends on ACPI
+
 endmenu
 
 menu "Kernel Features"
diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c
index b3d098b..023b983 100644
--- a/arch/arm64/kernel/pci.c
+++ b/arch/arm64/kernel/pci.c
@@ -61,21 +61,6 @@ int pcibios_add_device(struct pci_dev *dev)
 	return 0;
 }
 
-/*
- * raw_pci_read/write - Platform-specific PCI config space access.
- */
-int raw_pci_read(unsigned int domain, unsigned int bus,
-		  unsigned int devfn, int reg, int len, u32 *val)
-{
-	return -ENXIO;
-}
-
-int raw_pci_write(unsigned int domain, unsigned int bus,
-		unsigned int devfn, int reg, int len, u32 val)
-{
-	return -ENXIO;
-}
-
 #ifdef CONFIG_ACPI
 /* Root bridge scanning */
 struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
-- 
1.9.1

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Thread

[PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
  [PATCH V2 12/23] pci, acpi: Move ACPI host bridge device companion assignment to core code. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
  [PATCH V2 20/23] ACPI, PCI: Refine the way to handle translation_offset for ACPI resources Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
  [PATCH V2 01/23] x86, pci: Reorder logic of pci_mmconfig_insert() function Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
  [PATCH V2 21/23] pci, acpi: Support for ACPI based PCI hostbridge init Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
    Re: [PATCH V2 21/23] pci, acpi: Support for ACPI based PCI hostbridge init Arnd Bergmann <arnd@arndb.de> - 2015-12-18 13:50 +0100
      Re: [PATCH V2 21/23] pci, acpi: Support for ACPI based PCI hostbridge  init Tomasz Nowicki <tn@semihalf.com> - 2015-12-21 11:30 +0100
  [PATCH V2 19/23] acpi, mcfg: Add default PCI config accessors implementation and initial support for related quirks. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
  [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
    RE: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Gabriele Paoloni <gabriele.paoloni@huawei.com> - 2015-12-21 12:50 +0100
      Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Arnd Bergmann <arnd@arndb.de> - 2015-12-21 15:20 +0100
        Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Arnd Bergmann <arnd@arndb.de> - 2015-12-21 23:50 +0100
          Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Jon Masters <jcm@redhat.com> - 2015-12-22 00:30 +0100
        Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks. Jon Masters <jcm@redhat.com> - 2015-12-22 00:20 +0100
          Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Tomasz Nowicki <tn@semihalf.com> - 2015-12-22 09:50 +0100
          RE: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Gabriele Paoloni <gabriele.paoloni@huawei.com> - 2015-12-22 10:40 +0100
            Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Jon Masters <jcm@redhat.com> - 2015-12-22 17:40 +0100
              Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Jon Masters <jcm@redhat.com> - 2015-12-22 17:50 +0100
                RE: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Gabriele Paoloni <gabriele.paoloni@huawei.com> - 2015-12-22 19:00 +0100
      Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Tomasz Nowicki <tn@semihalf.com> - 2015-12-22 11:30 +0100
        RE: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Gabriele Paoloni <gabriele.paoloni@huawei.com> - 2015-12-22 15:50 +0100
          Re: [PATCH V2 22/23] pci, acpi: Match PCI config space accessors  against platfrom specific quirks. Hanjun Guo <hanjun.guo@linaro.org> - 2015-12-23 10:40 +0100
  [PATCH V2 09/23] pci, acpi, ecam: Add flag to indicate whether ECAM region was hot added or not. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:20 +0100
  [PATCH V2 18/23] x86, acpi, pci: Use equivalent function introduced in previous patch. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 14/23] pci, acpi: Provide generic way to assign bus domain number. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 05/23] x86, pci, ecam: mmconfig_64.c becomes default implementation for ECAM driver. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 11/23] arm64, pci: Remove useless boot time IRQ assignment when booting with DT. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 13/23] x86, ia64, pci: Remove ACPI companion device from platform specific data. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 10/23] x86, pci: Cleanup platform specific MCFG data using previously added ECAM hot_added flag. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 16/23] x86, ia64: Include acpi_pci_{add|remove}_bus to the default pcibios_{add|remove}_bus implementation. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
    Re: [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86  when PCI_MMCONFIG=y Tomasz Nowicki <tn@semihalf.com> - 2015-12-17 11:30 +0100
      Re: [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86  when PCI_MMCONFIG=y Tomasz Nowicki <tn@semihalf.com> - 2015-12-17 11:50 +0100
    Re: [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86  when PCI_MMCONFIG=y Stefano Stabellini <stefano.stabellini@eu.citrix.com> - 2015-12-21 19:20 +0100
      Re: [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86  when PCI_MMCONFIG=y Tomasz Nowicki <tn@semihalf.com> - 2015-12-22 09:40 +0100
  [PATCH V2 15/23] x86, ia64, pci: Convert arches to use PCI_DOMAINS_GENERIC. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 08/23] arm64, acpi: Use empty PCI config space accessors from mcfg.c file. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 03/23] pci, acpi, mcfg: Provide generic implementation of MCFG code initialization. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 07/23] pci, acpi, mcfg: Provide default RAW ACPI PCI config space accessors. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 17/23] acpi, mcfg: Implement two calls that might be used to inject/remove MCFG region. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 04/23] x86, pci: mmconfig_{32,64}.c code refactoring - remove code duplication. Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  [PATCH V2 02/23] x86, pci, acpi: Move arch-agnostic MMCONFIG (aka ECAM) and ACPI code out of arch/x86/ directory Tomasz Nowicki <tn@semihalf.com> - 2015-12-16 16:30 +0100
  Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI  hostbridge init based on ACPI Sinan Kaya <okaya@codeaurora.org> - 2015-12-17 22:30 +0100
    Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI  hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2015-12-18 13:30 +0100
      Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI  hostbridge init based on ACPI okaya@codeaurora.org - 2015-12-18 20:00 +0100
        Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI  hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2015-12-21 11:40 +0100
        Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI  hostbridge init based on ACPI Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2015-12-21 13:10 +0100
          Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI  hostbridge init based on ACPI Tomasz Nowicki <tn@semihalf.com> - 2015-12-21 13:50 +0100
            Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Arnd Bergmann <arnd@arndb.de> - 2015-12-21 15:20 +0100
              Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI  hostbridge init based on ACPI Okaya@codeaurora.org - 2015-12-21 16:30 +0100
                Re: [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Arnd Bergmann <arnd@arndb.de> - 2015-12-21 23:50 +0100

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