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| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-07-26 02:39:03 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-27 04:28:16 (GMT) |
| commit | d25ae38b7e005af03843833bbd811ffe8c5f8cb4 (patch) | |
| tree | bc4016cd14572affa04e3fed6f0dd095ce134fc3 /arch | |
| parent | edb181ac4b0c7c1240503da46349a3fb69af9ef6 (diff) | |
| download | linux-d25ae38b7e005af03843833bbd811ffe8c5f8cb4.tar.xz | |
x86: add apic probe for genapic 64bit - fix
intr_remapping_enabled get assigned later, so need to check that
in setup_apic_routing
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Jack Steiner <steiner@sgi.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/genapic_64.c | 6 | ||||
| -rw-r--r-- | arch/x86/kernel/genx2apic_cluster.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/genx2apic_phys.c | 2 |
3 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c index b3ba969..6c9bfc9 100644 --- a/arch/x86/kernel/genapic_64.c +++ b/arch/x86/kernel/genapic_64.c @@ -16,6 +16,7 @@ #include <linux/ctype.h> #include <linux/init.h> #include <linux/hardirq.h> +#include <linux/dmar.h> #include <asm/smp.h> #include <asm/ipi.h> @@ -42,6 +43,11 @@ static struct genapic *apic_probe[] __initdata = { */ void __init setup_apic_routing(void) { + if (genapic == &apic_x2apic_phys || genapic == &apic_x2apic_cluster) { + if (!intr_remapping_enabled) + genapic = &apic_flat; + } + if (genapic == &apic_flat) { if (max_physical_apicid >= 8) genapic = &apic_physflat; diff --git a/arch/x86/kernel/genx2apic_cluster.c b/arch/x86/kernel/genx2apic_cluster.c index ef3f318..fed9f68 100644 --- a/arch/x86/kernel/genx2apic_cluster.c +++ b/arch/x86/kernel/genx2apic_cluster.c @@ -14,7 +14,7 @@ DEFINE_PER_CPU(u32, x86_cpu_to_logical_apicid); static int __init x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { - if (cpu_has_x2apic && intr_remapping_enabled) + if (cpu_has_x2apic) return 1; return 0; diff --git a/arch/x86/kernel/genx2apic_phys.c b/arch/x86/kernel/genx2apic_phys.c index 3229c68..958d537 100644 --- a/arch/x86/kernel/genx2apic_phys.c +++ b/arch/x86/kernel/genx2apic_phys.c @@ -21,7 +21,7 @@ early_param("x2apic_phys", set_x2apic_phys_mode); static int __init x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { - if (cpu_has_x2apic && intr_remapping_enabled && x2apic_phys) + if (cpu_has_x2apic && x2apic_phys) return 1; return 0; |