redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

x86/acpi: move setup io apic routing out of CONFIG_ACPI scope 

So we could set io apic routing when ACPI is not enabled.

[ Impact: prepare for new functionality ]

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Len Brown <lenb@kernel.org>
LKML-Reference: <4A01C422.5070400@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Yinghai Lu 2009-05-06 10:08:50 -07:00 committed by Ingo Molnar
parent e20c06fd69
commit 5ef2183768
2 changed files with 63 additions and 63 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/x86/include/asm/io_apic.h
View File

@ -154,10 +154,10 @@ extern int timer_through_8259;
extern int io_apic_get_unique_id(int ioapic, int apic_id);
extern int io_apic_get_version(int ioapic);
extern int io_apic_get_redir_entries(int ioapic);
extern int io_apic_set_pci_routing(struct device *dev, int ioapic, int pin,
int irq, int edge_level, int active_high_low);
#endif /* CONFIG_ACPI */
extern int io_apic_set_pci_routing(struct device *dev, int ioapic, int pin,
int irq, int edge_level, int active_high_low);
extern int (*ioapic_renumber_irq)(int ioapic, int irq);
extern void ioapic_init_mappings(void);

122
arch/x86/kernel/apic/io_apic.c
View File

@ -3839,6 +3839,67 @@ int __init arch_probe_nr_irqs(void)
}
#endif
static int __io_apic_set_pci_routing(struct device *dev, int ioapic, int pin, int irq,
int triggering, int polarity)
{
struct irq_desc *desc;
struct irq_cfg *cfg;
int node;
if (!IO_APIC_IRQ(irq)) {
apic_printk(APIC_QUIET,KERN_ERR "IOAPIC[%d]: Invalid reference to IRQ 0\n",
ioapic);
return -EINVAL;
}
if (dev)
node = dev_to_node(dev);
else
node = cpu_to_node(boot_cpu_id);
desc = irq_to_desc_alloc_node(irq, node);
if (!desc) {
printk(KERN_INFO "can not get irq_desc %d\n", irq);
return 0;
}
/*
* IRQs < 16 are already in the irq_2_pin[] map
*/
if (irq >= NR_IRQS_LEGACY) {
cfg = desc->chip_data;
add_pin_to_irq_node(cfg, node, ioapic, pin);
}
setup_IO_APIC_irq(ioapic, pin, irq, desc, triggering, polarity);
return 0;
}
static struct {
DECLARE_BITMAP(pin_programmed, MP_MAX_IOAPIC_PIN + 1);
} mp_ioapic_routing[MAX_IO_APICS];
int io_apic_set_pci_routing(struct device *dev, int ioapic, int pin, int irq,
int triggering, int polarity)
{
/*
* Avoid pin reprogramming. PRTs typically include entries
* with redundant pin->gsi mappings (but unique PCI devices);
* we only program the IOAPIC on the first.
*/
if (test_bit(pin, mp_ioapic_routing[ioapic].pin_programmed)) {
pr_debug("Pin %d-%d already programmed\n",
mp_ioapics[ioapic].apicid, pin);
return 0;
}
set_bit(pin, mp_ioapic_routing[ioapic].pin_programmed);
return __io_apic_set_pci_routing(dev, ioapic, pin, irq,
triggering, polarity);
}
/* --------------------------------------------------------------------------
ACPI-based IOAPIC Configuration
-------------------------------------------------------------------------- */
@ -3933,67 +3994,6 @@ int __init io_apic_get_version(int ioapic)
}
#endif
static int __io_apic_set_pci_routing(struct device *dev, int ioapic, int pin, int irq,
int triggering, int polarity)
{
struct irq_desc *desc;
struct irq_cfg *cfg;
int node;
if (!IO_APIC_IRQ(irq)) {
apic_printk(APIC_QUIET,KERN_ERR "IOAPIC[%d]: Invalid reference to IRQ 0\n",
ioapic);
return -EINVAL;
}
if (dev)
node = dev_to_node(dev);
else
node = cpu_to_node(boot_cpu_id);
desc = irq_to_desc_alloc_node(irq, node);
if (!desc) {
printk(KERN_INFO "can not get irq_desc %d\n", irq);
return 0;
}
/*
* IRQs < 16 are already in the irq_2_pin[] map
*/
if (irq >= NR_IRQS_LEGACY) {
cfg = desc->chip_data;
add_pin_to_irq_node(cfg, node, ioapic, pin);
}
setup_IO_APIC_irq(ioapic, pin, irq, desc, triggering, polarity);
return 0;
}
static struct {
DECLARE_BITMAP(pin_programmed, MP_MAX_IOAPIC_PIN + 1);
} mp_ioapic_routing[MAX_IO_APICS];
int io_apic_set_pci_routing(struct device *dev, int ioapic, int pin, int irq,
int triggering, int polarity)
{
/*
* Avoid pin reprogramming. PRTs typically include entries
* with redundant pin->gsi mappings (but unique PCI devices);
* we only program the IOAPIC on the first.
*/
if (test_bit(pin, mp_ioapic_routing[ioapic].pin_programmed)) {
pr_debug("Pin %d-%d already programmed\n",
mp_ioapics[ioapic].apicid, pin);
return 0;
}
set_bit(pin, mp_ioapic_routing[ioapic].pin_programmed);
return __io_apic_set_pci_routing(dev, ioapic, pin, irq,
triggering, polarity);
}
int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
{
int i;