diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-07-21 22:08:21 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-22 09:09:15 +0200 |
| commit | 1b9b89e7f163336ad84200b66a17284dbf26aced (patch) | |
| tree | e5f84e8c4e63de6029c38d10c979054014599874 /arch/x86/kernel/genx2apic_phys.c | |
| parent | 76c3bb15d6786a0b8da0ad0090e0c9c3672fc08b (diff) | |
x86: add apic probe for genapic 64bit, v2
introducing an APIC handling probing abstraction:
static struct genapic *apic_probe[] __initdata = {
&apic_x2apic_uv_x,
&apic_x2apic_phys,
&apic_x2apic_cluster,
&apic_physflat,
NULL,
};
This way we can remove UV, x2apic specific code from genapic_64.c and
move them to their specific genapic files.
[ v2: fix compiling when CONFIG_ACPI is not set ]
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/x86/kernel/genx2apic_phys.c')
| -rw-r--r-- | arch/x86/kernel/genx2apic_phys.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86/kernel/genx2apic_phys.c b/arch/x86/kernel/genx2apic_phys.c index 2f3c6ca19de..f35a3bf3a9e 100644 --- a/arch/x86/kernel/genx2apic_phys.c +++ b/arch/x86/kernel/genx2apic_phys.c @@ -4,10 +4,30 @@ #include <linux/kernel.h> #include <linux/ctype.h> #include <linux/init.h> +#include <linux/dmar.h> + #include <asm/smp.h> #include <asm/ipi.h> #include <asm/genapic.h> +DEFINE_PER_CPU(int, x2apic_extra_bits); + +static int x2apic_phys; + +static int set_x2apic_phys_mode(char *arg) +{ + x2apic_phys = 1; + return 0; +} +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) + return 1; + + return 0; +} /* Start with all IRQs pointing to boot CPU. IRQ balancing will shift them. */ @@ -122,6 +142,7 @@ void init_x2apic_ldr(void) struct genapic apic_x2apic_phys = { .name = "physical x2apic", + .acpi_madt_oem_check = x2apic_acpi_madt_oem_check, .int_delivery_mode = dest_Fixed, .int_dest_mode = (APIC_DEST_PHYSICAL != 0), .target_cpus = x2apic_target_cpus, |