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authorSuresh Siddha <suresh.b.siddha@intel.com>2009-03-16 17:04:55 -0700
committerH. Peter Anvin <hpa@linux.intel.com>2009-03-17 15:38:59 -0700
commit9d783ba042771284fb4ee5013c3d94220755ae7f (patch)
tree102ec9f89d363589108ae35e4b38c12fc6e2765c /arch/x86/kernel/apic
parent0ac2491f57af5644f88383d28809760902d6f4d7 (diff)
downloadop-kernel-dev-9d783ba042771284fb4ee5013c3d94220755ae7f.zip
op-kernel-dev-9d783ba042771284fb4ee5013c3d94220755ae7f.tar.gz
x86, x2apic: enable fault handling for intr-remapping
Impact: interface augmentation (not yet used) Enable fault handling flow for intr-remapping aswell. Fault handling code now shared by both dma-remapping and intr-remapping. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel/apic')
-rw-r--r--arch/x86/kernel/apic/io_apic.c9
-rw-r--r--arch/x86/kernel/apic/probe_64.c9
2 files changed, 16 insertions, 2 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 00e6071..b18a773 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3294,7 +3294,12 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, struct msi_ms
} else
#endif
{
- msg->address_hi = MSI_ADDR_BASE_HI;
+ if (x2apic_enabled())
+ msg->address_hi = MSI_ADDR_BASE_HI |
+ MSI_ADDR_EXT_DEST_ID(dest);
+ else
+ msg->address_hi = MSI_ADDR_BASE_HI;
+
msg->address_lo =
MSI_ADDR_BASE_LO |
((apic->irq_dest_mode == 0) ?
@@ -3528,7 +3533,7 @@ void arch_teardown_msi_irq(unsigned int irq)
destroy_irq(irq);
}
-#ifdef CONFIG_DMAR
+#if defined (CONFIG_DMAR) || defined (CONFIG_INTR_REMAP)
#ifdef CONFIG_SMP
static void dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
{
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 8d7748e..8297c2b 100644
--- a/arch/x86/kernel/apic/probe_64.c
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -68,6 +68,15 @@ void __init default_setup_apic_routing(void)
apic = &apic_physflat;
printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
}
+
+#ifdef CONFIG_X86_X2APIC
+ /*
+ * Now that apic routing model is selected, configure the
+ * fault handling for intr remapping.
+ */
+ if (intr_remapping_enabled)
+ enable_drhd_fault_handling();
+#endif
}
/* Same for both flat and physical. */
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