diff options
| author | Suresh Siddha <suresh.b.siddha@intel.com> | 2009-03-16 17:04:55 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2009-03-17 15:38:59 -0700 |
| commit | 9d783ba042771284fb4ee5013c3d94220755ae7f (patch) | |
| tree | 102ec9f89d363589108ae35e4b38c12fc6e2765c /arch/x86 | |
| parent | 0ac2491f57af5644f88383d28809760902d6f4d7 (diff) | |
| download | op-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')
| -rw-r--r-- | arch/x86/include/asm/msidef.h | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 9 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/probe_64.c | 9 |
3 files changed, 17 insertions, 2 deletions
diff --git a/arch/x86/include/asm/msidef.h b/arch/x86/include/asm/msidef.h index 6706b30..4cc48af 100644 --- a/arch/x86/include/asm/msidef.h +++ b/arch/x86/include/asm/msidef.h @@ -47,6 +47,7 @@ #define MSI_ADDR_DEST_ID_MASK 0x00ffff0 #define MSI_ADDR_DEST_ID(dest) (((dest) << MSI_ADDR_DEST_ID_SHIFT) & \ MSI_ADDR_DEST_ID_MASK) +#define MSI_ADDR_EXT_DEST_ID(dest) ((dest) & 0xffffff00) #define MSI_ADDR_IR_EXT_INT (1 << 4) #define MSI_ADDR_IR_SHV (1 << 3) 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. */ |
