linux-kernel - [PATCH 4/9] x86: Add pcibios_fixup_irqs to x86

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Message-ID: <43F901BD926A4E43B106BF17856F07559FB80D00@orsmsx508.amr.corp.intel.com>
Date:	Fri, 12 Feb 2010 17:40:16 -0800
From:	"Pan, Jacob jun" <jacob.jun.pan@...el.com>
To:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	"Barnes, Jesse" <jesse.barnes@...el.com>,
	"Du, Alek" <alek.du@...el.com>, "Tang, Feng" <feng.tang@...el.com>,
	"H. Peter Anvin" <hpa@...ux.intel.com>
Subject: [PATCH 4/9] x86: Add pcibios_fixup_irqs to x86_init

>From 592606bef750654a2b7746bf3b35809d096ae1dd Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@...utronix.de>
Date: Sat, 29 Aug 2009 17:51:26 +0200
Subject: [PATCH 4/9] x86: Add pcibios_fixup_irqs to x86_init

Platforms like Moorestown want to override the pcibios_fixup_irqs
default function. Add it to x86_init.pci

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Acked-by: Jesse Barnes <jbarnes@...tuousgeek.org>
Signed-off-by: Jacob Pan <jacob.jun.pan@...el.com>
---
 arch/x86/include/asm/pci_x86.h  |    3 +++
 arch/x86/include/asm/x86_init.h |    2 ++
 arch/x86/kernel/x86_init.c      |    2 ++
 arch/x86/pci/irq.c              |    4 ++--
 4 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index 46511c5..6e69edf 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -113,6 +113,7 @@ extern int __init pci_acpi_init(void);
 extern void __init pcibios_irq_init(void);
 extern int __init pcibios_init(void);
 extern int pci_legacy_init(void);
+extern void pcibios_fixup_irqs(void);
 
 /* pci-mmconfig.c */
 
@@ -188,7 +189,9 @@ static inline void mmio_config_writel(void __iomem *pos, u32 val)
 #  define x86_default_pci_init		pci_legacy_init
 # endif
 # define x86_default_pci_init_irq	pcibios_irq_init
+# define x86_default_pci_fixup_irqs	pcibios_fixup_irqs
 #else
 # define x86_default_pci_init		NULL
 # define x86_default_pci_init_irq	NULL
+# define x86_default_pci_fixup_irqs	NULL
 #endif
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 34f61cd..8ef56f2 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -102,10 +102,12 @@ struct x86_init_iommu {
   * struct x86_init_pci - platform specific pci init functions
  * @init:			platform specific pci init
  * @init_irq:			platform specific pci irq init
+ * @fixup_irqs:			platform specific pci irq fixup
  */
 struct x86_init_pci {
 	int (*init)(void);
 	void (*init_irq)(void);
+	void (*fixup_irqs)(void);
 };
 
 /**
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 203f26f..1817cd7 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -4,6 +4,7 @@
  *  For licencing details see kernel-base/COPYING
  */
 #include <linux/init.h>
+#include <linux/ioport.h>
 
 #include <asm/bios_ebda.h>
 #include <asm/paravirt.h>
@@ -75,6 +76,7 @@ struct x86_init_ops x86_init __initdata = {
 	.pci = {
 		.init			= x86_default_pci_init,
 		.init_irq		= x86_default_pci_init_irq,
+		.fixup_irqs		= x86_default_pci_fixup_irqs,
 	},
 };
 
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 0f40ff2..a60deb6 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1016,7 +1016,7 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
 	return 1;
 }
 
-static void __init pcibios_fixup_irqs(void)
+void __init pcibios_fixup_irqs(void)
 {
 	struct pci_dev *dev = NULL;
 	u8 pin;
@@ -1142,7 +1142,7 @@ void __init pcibios_irq_init(void)
 			pirq_table = NULL;
 	}
 
-	pcibios_fixup_irqs();
+	x86_init.pci.fixup_irqs();
 
 	if (io_apic_assign_pci_irqs && pci_routeirq) {
 		struct pci_dev *dev = NULL;
-- 
1.6.5.3

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