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x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI 

The IOAPIC has logic to track IOAPIC pin status, so there's no need for
special treatment for GSI used by ACPI SCI in function mp_register_gsi()
and mp_unregister_gsi().

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Link: http://lkml.kernel.org/r/1414397531-28254-2-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu 2014-10-27 16:11:52 +08:00 committed by Thomas Gleixner
parent e89900c9ad
commit cd68f6bd53
1 changed files with 2 additions and 8 deletions
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10
arch/x86/kernel/acpi/boot.c
View File

@ -408,10 +408,6 @@ static int mp_register_gsi(struct device *dev, u32 gsi, int trigger,
if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
return gsi;
/* Don't set up the ACPI SCI because it's already set up */
if (acpi_gbl_FADT.sci_interrupt == gsi)
return mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC);
trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1;
polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1;
node = dev ? dev_to_node(dev) : NUMA_NO_NODE;
@ -424,7 +420,8 @@ static int mp_register_gsi(struct device *dev, u32 gsi, int trigger,
if (irq < 0)
return irq;
if (enable_update_mptable)
/* Don't set up the ACPI SCI because it's already set up */
if (enable_update_mptable && acpi_gbl_FADT.sci_interrupt != gsi)
mp_config_acpi_gsi(dev, gsi, trigger, polarity);
return irq;
@ -437,9 +434,6 @@ static void mp_unregister_gsi(u32 gsi)
if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
return;
if (acpi_gbl_FADT.sci_interrupt == gsi)
return;
irq = mp_map_gsi_to_irq(gsi, 0);
if (irq > 0)
mp_unmap_irq(irq);