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x86: Add pci_init_irq to x86_init

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Moorestown wants to reuse pcibios_init_irq but needs to provide its
own implementation of pci_enable_irq. After we distangled the init we
can move the init_irq call to x86_init and remove the pci_enable_irq
!= NULL check in pcibios_init_irq. pci_enable_irq is compile time
initialized to pirq_enable_irq and the special cases which override it
(visws and acpi) set the x86_init function pointer to noop. That
allows MSRT to override pci_enable_irq and otherwise run
pcibios_init_irq unmodified.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <43F901BD926A4E43B106BF17856F07559FB80CFF@orsmsx508.amr.corp.intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Thomas Gleixner
2009-08-29 17:47:33 +02:00
committed by H. Peter Anvin
parent b72d0db9dd
commit ab3b37937e
7 changed files with 13 additions and 10 deletions
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4
arch/x86/include/asm/pci_x86.h
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@@ -110,7 +110,7 @@ extern void __init dmi_check_skip_isa_align(void);
/* some common used subsys_initcalls */
extern int __init pci_acpi_init(void);
extern int __init pcibios_irq_init(void);
extern void __init pcibios_irq_init(void);
extern int __init pcibios_init(void);
extern int pci_legacy_init(void);
@@ -187,6 +187,8 @@ static inline void mmio_config_writel(void __iomem *pos, u32 val)
# else
# define x86_default_pci_init pci_legacy_init
# endif
# define x86_default_pci_init_irq pcibios_irq_init
#else
# define x86_default_pci_init NULL
# define x86_default_pci_init_irq NULL
#endif