linux-kernel - [Patch v4 5/8] ARM64/PCI/ACPI: Introduce struct pci

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Date:	Tue,  2 Jun 2015 14:12:53 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	"Rafael J . Wysocki" <rjw@...ysocki.net>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Marc Zyngier <marc.zyngier@....com>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Liviu Dudau <Liviu.Dudau@....com>,
	Yijing Wang <wangyijing@...wei.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>
Cc:	Lv Zheng <lv.zheng@...el.com>,
	"lenb @ kernel . org" <lenb@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>, linux-pci@...r.kernel.org,
	linux-acpi@...r.kernel.org, "x86 @ kernel . org" <x86@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	Arnd Bergmann <arnd@...db.de>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	Jiang Liu <jiang.liu@...ux.intel.com>
Subject: [Patch v4 5/8] ARM64/PCI/ACPI: Introduce struct pci_controller for ACPI

From: Hanjun Guo <hanjun.guo@...aro.org>

ARM64 ACPI based PCI host bridge init needs a arch dependent
struct pci_controller to accommodate common PCI host bridge
code which is introduced later, or it will lead to compile
errors on ARM64.

Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
CC: Arnd Bergmann <arnd@...db.de>
CC: Catalin Marinas <catalin.marinas@....com>
CC: Liviu Dudau <Liviu.Dudau@....com>
CC: Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>
CC: Will Deacon <will.deacon@....com>
Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
---
 arch/arm64/include/asm/pci.h |   10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/include/asm/pci.h b/arch/arm64/include/asm/pci.h
index b008a72f8bc0..70884957f253 100644
--- a/arch/arm64/include/asm/pci.h
+++ b/arch/arm64/include/asm/pci.h
@@ -10,6 +10,16 @@
 #include <asm-generic/pci-bridge.h>
 #include <asm-generic/pci-dma-compat.h>
 
+struct acpi_device;
+
+struct pci_controller {
+#ifdef CONFIG_ACPI
+	struct acpi_device *companion;	/* ACPI companion device */
+#endif
+	int		segment;	/* PCI domain */
+	int		node;		/* NUMA node */
+};
+
 #define PCIBIOS_MIN_IO		0x1000
 #define PCIBIOS_MIN_MEM		0
 
-- 
1.7.10.4

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