static int __init
acpi_parse_int_src_ovr(struct acpi_subtable_header * header,
const unsigned long end)
{
struct acpi_madt_interrupt_override *intsrc =
container_of(header, struct acpi_madt_interrupt_override,
header);
if (BAD_MADT_ENTRY(intsrc, end))
return -EINVAL;
acpi_table_print_madt_entry(header);
if (acpi_skip_timer_override &&
intsrc->source_irq == 0 && intsrc->global_irq == 2) {
printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n");
return 0;
}
mp_override_legacy_irq(intsrc->source_irq,
ACPI_MADT_GET_POLARITY(intsrc->inti_flags),
ACPI_MADT_GET_TRIGGER(intsrc->inti_flags),
intsrc->global_irq);
return 0;
}
/*
* Parse Interrupt Source Override for the ACPI SCI
*/
static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, u32 gsi)
{
if (trigger == 0) /* compatible SCI trigger is level */
trigger = 3;
if (polarity == 0) /* compatible SCI polarity is low */
polarity = 3;
/* Command-line over-ride via acpi_sci= */
if (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK)
trigger = (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2;
if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK)
polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK;
/*
* mp_config_acpi_legacy_irqs() already setup IRQs < 16
* If GSI is < 16, this will update its flags,
* else it will create a new mp_irqs[] entry.
*/
mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
/*
* stash over-ride to indicate we've been here
* and for later update of acpi_gbl_FADT
*/
acpi_sci_override_gsi = gsi;
return;
}
static int __init
acpi_parse_int_src_ovr (
acpi_table_entry_header *header)
{
struct acpi_table_int_src_ovr *intsrc = NULL;
intsrc = (struct acpi_table_int_src_ovr*) header;
if (!intsrc)
return -EINVAL;
acpi_table_print_madt_entry(header);
if (intsrc->bus_irq == acpi_fadt.sci_int) {
acpi_sci_ioapic_setup(intsrc->global_irq,
intsrc->flags.polarity, intsrc->flags.trigger);
return 0;
}
if (acpi_skip_timer_override &&
intsrc->bus_irq == 0 && intsrc->global_irq == 2) {
printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n");
return 0;
}
mp_override_legacy_irq (
intsrc->bus_irq,
intsrc->flags.polarity,
intsrc->flags.trigger,
intsrc->global_irq);
return 0;
}
/*
* Parse Interrupt Source Override for the ACPI SCI
*/
static void
acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger)
{
if (trigger == 0) /* compatible SCI trigger is level */
trigger = 3;
if (polarity == 0) /* compatible SCI polarity is low */
polarity = 3;
/* Command-line over-ride via acpi_sci= */
if (acpi_sci_flags.trigger)
trigger = acpi_sci_flags.trigger;
if (acpi_sci_flags.polarity)
polarity = acpi_sci_flags.polarity;
/*
* mp_config_acpi_legacy_irqs() already setup IRQs < 16
* If GSI is < 16, this will update its flags,
* else it will create a new mp_irqs[] entry.
*/
mp_override_legacy_irq(gsi, polarity, trigger, gsi);
/*
* stash over-ride to indicate we've been here
* and for later update of acpi_fadt
*/
acpi_sci_override_gsi = gsi;
return;
}
/*
* Parse Interrupt Source Override for the ACPI SCI
*/
static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, u32 gsi)
{
if (trigger == 0) /* compatible SCI trigger is level */
trigger = 3;
if (polarity == 0) /* compatible SCI polarity is low */
polarity = 3;
/* Command-line over-ride via acpi_sci= */
if (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK)
trigger = (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2;
if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK)
polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK;
mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
acpi_penalize_sci_irq(bus_irq, trigger, polarity);
/*
* stash over-ride to indicate we've been here
* and for later update of acpi_gbl_FADT
*/
acpi_sci_override_gsi = gsi;
return;
}
static int __init
acpi_parse_int_src_ovr(struct acpi_subtable_header * header,
const unsigned long end)
{
struct acpi_table_int_src_ovr *intsrc = NULL;
intsrc = (struct acpi_table_int_src_ovr *)header;
if (BAD_MADT_ENTRY(intsrc, end))
return -EINVAL;
acpi_table_print_madt_entry(header);
if (acpi_skip_timer_override &&
intsrc->bus_irq == 0 && intsrc->global_irq == 2) {
printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n");
return 0;
}
mp_override_legacy_irq(intsrc->bus_irq,
intsrc->flags.polarity,
intsrc->flags.trigger, intsrc->global_irq);
return 0;
}
