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Diffstat (limited to 'arch/x86/kernel/apic/apic.c')
-rw-r--r--arch/x86/kernel/apic/apic.c42
1 files changed, 24 insertions, 18 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index edc24480469..39a222e094a 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -35,6 +35,7 @@
#include <linux/smp.h>
#include <linux/mm.h>
+#include <asm/irq_remapping.h>
#include <asm/perf_event.h>
#include <asm/x86_init.h>
#include <asm/pgalloc.h>
@@ -1325,11 +1326,13 @@ void __cpuinit setup_local_APIC(void)
acked);
break;
}
- if (cpu_has_tsc) {
- rdtscll(ntsc);
- max_loops = (cpu_khz << 10) - (ntsc - tsc);
- } else
- max_loops--;
+ if (queued) {
+ if (cpu_has_tsc) {
+ rdtscll(ntsc);
+ max_loops = (cpu_khz << 10) - (ntsc - tsc);
+ } else
+ max_loops--;
+ }
} while (queued && max_loops > 0);
WARN_ON(max_loops <= 0);
@@ -1441,8 +1444,8 @@ void __init bsp_end_local_APIC_setup(void)
* Now that local APIC setup is completed for BP, configure the fault
* handling for interrupt remapping.
*/
- if (intr_remapping_enabled)
- enable_drhd_fault_handling();
+ if (irq_remapping_enabled)
+ irq_remap_enable_fault_handling();
}
@@ -1517,7 +1520,7 @@ void enable_x2apic(void)
int __init enable_IR(void)
{
#ifdef CONFIG_IRQ_REMAP
- if (!intr_remapping_supported()) {
+ if (!irq_remapping_supported()) {
pr_debug("intr-remapping not supported\n");
return -1;
}
@@ -1528,7 +1531,7 @@ int __init enable_IR(void)
return -1;
}
- return enable_intr_remapping();
+ return irq_remapping_enable();
#endif
return -1;
}
@@ -1537,10 +1540,13 @@ void __init enable_IR_x2apic(void)
{
unsigned long flags;
int ret, x2apic_enabled = 0;
- int dmar_table_init_ret;
+ int hardware_init_ret;
+
+ /* Make sure irq_remap_ops are initialized */
+ setup_irq_remapping_ops();
- dmar_table_init_ret = dmar_table_init();
- if (dmar_table_init_ret && !x2apic_supported())
+ hardware_init_ret = irq_remapping_prepare();
+ if (hardware_init_ret && !x2apic_supported())
return;
ret = save_ioapic_entries();
@@ -1556,7 +1562,7 @@ void __init enable_IR_x2apic(void)
if (x2apic_preenabled && nox2apic)
disable_x2apic();
- if (dmar_table_init_ret)
+ if (hardware_init_ret)
ret = -1;
else
ret = enable_IR();
@@ -2176,8 +2182,8 @@ static int lapic_suspend(void)
local_irq_save(flags);
disable_local_APIC();
- if (intr_remapping_enabled)
- disable_intr_remapping();
+ if (irq_remapping_enabled)
+ irq_remapping_disable();
local_irq_restore(flags);
return 0;
@@ -2193,7 +2199,7 @@ static void lapic_resume(void)
return;
local_irq_save(flags);
- if (intr_remapping_enabled) {
+ if (irq_remapping_enabled) {
/*
* IO-APIC and PIC have their own resume routines.
* We just mask them here to make sure the interrupt
@@ -2245,8 +2251,8 @@ static void lapic_resume(void)
apic_write(APIC_ESR, 0);
apic_read(APIC_ESR);
- if (intr_remapping_enabled)
- reenable_intr_remapping(x2apic_mode);
+ if (irq_remapping_enabled)
+ irq_remapping_reenable(x2apic_mode);
local_irq_restore(flags);
}