diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index fd4b6d2e436c..8c28023924bf 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -421,8 +421,24 @@ static int mp_register_gsi(struct device *dev, u32 gsi, int trigger, return irq; } +static void mp_unregister_gsi(u32 gsi) +{ + int irq; + + 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); +} + static struct irq_domain_ops acpi_irqdomain_ops = { .map = mp_irqdomain_map, + .unmap = mp_irqdomain_unmap, }; static int __init @@ -640,8 +656,16 @@ static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi, return irq; } +static void acpi_unregister_gsi_ioapic(u32 gsi) +{ +#ifdef CONFIG_X86_IO_APIC + mp_unregister_gsi(gsi); +#endif +} + int (*__acpi_register_gsi)(struct device *dev, u32 gsi, int trigger, int polarity) = acpi_register_gsi_pic; +void (*__acpi_unregister_gsi)(u32 gsi) = NULL; #ifdef CONFIG_ACPI_SLEEP int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel; @@ -661,6 +685,8 @@ EXPORT_SYMBOL_GPL(acpi_register_gsi); void acpi_unregister_gsi(u32 gsi) { + if (__acpi_unregister_gsi) + __acpi_unregister_gsi(gsi); } EXPORT_SYMBOL_GPL(acpi_unregister_gsi); @@ -668,6 +694,7 @@ static void __init acpi_set_irq_model_ioapic(void) { acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; __acpi_register_gsi = acpi_register_gsi_ioapic; + __acpi_unregister_gsi = acpi_unregister_gsi_ioapic; acpi_ioapic = 1; } |