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x86/irq: Prepare IOAPIC interfaces to support hierarchical irqdomains

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Introduce helper functions to manipulate struct irq_alloc_info for
IOAPIC.  Also add an extra parameter to IOAPIC interfaces to prepare
for hierarchical irqdomain. Function mp_set_gsi_attr() will be removed
once we have switched to hierarchical irqdomains.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Tested-by: Joerg Roedel <jroedel@suse.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Link: http://lkml.kernel.org/r/1428905519-23704-33-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu
2015-04-13 14:11:54 +08:00
committed by Thomas Gleixner
parent 4e69d7eab4
commit c4d05a2c35
6 changed files with 54 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/kernel/acpi/boot.c
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@@ -404,6 +404,7 @@ static int mp_register_gsi(struct device *dev, u32 gsi, int trigger,
int polarity)
{
int irq, node;
struct irq_alloc_info info;
if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
return gsi;
@@ -416,7 +417,8 @@ static int mp_register_gsi(struct device *dev, u32 gsi, int trigger,
return -1;
}
irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC);
ioapic_set_alloc_attr(&info, node, trigger, polarity);
irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info);
if (irq < 0)
return irq;
@@ -434,7 +436,7 @@ static void mp_unregister_gsi(u32 gsi)
if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
return;
irq = mp_map_gsi_to_irq(gsi, 0);
irq = mp_map_gsi_to_irq(gsi, 0, NULL);
if (irq > 0)
mp_unmap_irq(irq);
}