a5a391561b
Since there are only two locations where cpu_mask_to_apicid() is called from, remove the operation and use only cpu_mask_to_apicid_and() instead. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Suggested-and-acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/20120614074935.GE3383@dhcp-26-207.brq.redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
#include <linux/threads.h>
|
|
#include <linux/cpumask.h>
|
|
#include <linux/string.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/init.h>
|
|
#include <linux/dmar.h>
|
|
|
|
#include <asm/smp.h>
|
|
#include <asm/x2apic.h>
|
|
|
|
int x2apic_phys;
|
|
|
|
static struct apic apic_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 x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
|
|
{
|
|
if (x2apic_phys)
|
|
return x2apic_enabled();
|
|
else if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) &&
|
|
(acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) &&
|
|
x2apic_enabled()) {
|
|
printk(KERN_DEBUG "System requires x2apic physical mode\n");
|
|
return 1;
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
__x2apic_send_IPI_mask(const struct cpumask *mask, int vector, int apic_dest)
|
|
{
|
|
unsigned long query_cpu;
|
|
unsigned long this_cpu;
|
|
unsigned long flags;
|
|
|
|
x2apic_wrmsr_fence();
|
|
|
|
local_irq_save(flags);
|
|
|
|
this_cpu = smp_processor_id();
|
|
for_each_cpu(query_cpu, mask) {
|
|
if (apic_dest == APIC_DEST_ALLBUT && this_cpu == query_cpu)
|
|
continue;
|
|
__x2apic_send_IPI_dest(per_cpu(x86_cpu_to_apicid, query_cpu),
|
|
vector, APIC_DEST_PHYSICAL);
|
|
}
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
static void x2apic_send_IPI_mask(const struct cpumask *mask, int vector)
|
|
{
|
|
__x2apic_send_IPI_mask(mask, vector, APIC_DEST_ALLINC);
|
|
}
|
|
|
|
static void
|
|
x2apic_send_IPI_mask_allbutself(const struct cpumask *mask, int vector)
|
|
{
|
|
__x2apic_send_IPI_mask(mask, vector, APIC_DEST_ALLBUT);
|
|
}
|
|
|
|
static void x2apic_send_IPI_allbutself(int vector)
|
|
{
|
|
__x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLBUT);
|
|
}
|
|
|
|
static void x2apic_send_IPI_all(int vector)
|
|
{
|
|
__x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLINC);
|
|
}
|
|
|
|
static void init_x2apic_ldr(void)
|
|
{
|
|
}
|
|
|
|
static int x2apic_phys_probe(void)
|
|
{
|
|
if (x2apic_mode && x2apic_phys)
|
|
return 1;
|
|
|
|
return apic == &apic_x2apic_phys;
|
|
}
|
|
|
|
static struct apic apic_x2apic_phys = {
|
|
|
|
.name = "physical x2apic",
|
|
.probe = x2apic_phys_probe,
|
|
.acpi_madt_oem_check = x2apic_acpi_madt_oem_check,
|
|
.apic_id_valid = x2apic_apic_id_valid,
|
|
.apic_id_registered = x2apic_apic_id_registered,
|
|
|
|
.irq_delivery_mode = dest_Fixed,
|
|
.irq_dest_mode = 0, /* physical */
|
|
|
|
.target_cpus = online_target_cpus,
|
|
.disable_esr = 0,
|
|
.dest_logical = 0,
|
|
.check_apicid_used = NULL,
|
|
.check_apicid_present = NULL,
|
|
|
|
.vector_allocation_domain = default_vector_allocation_domain,
|
|
.init_apic_ldr = init_x2apic_ldr,
|
|
|
|
.ioapic_phys_id_map = NULL,
|
|
.setup_apic_routing = NULL,
|
|
.multi_timer_check = NULL,
|
|
.cpu_present_to_apicid = default_cpu_present_to_apicid,
|
|
.apicid_to_cpu_present = NULL,
|
|
.setup_portio_remap = NULL,
|
|
.check_phys_apicid_present = default_check_phys_apicid_present,
|
|
.enable_apic_mode = NULL,
|
|
.phys_pkg_id = x2apic_phys_pkg_id,
|
|
.mps_oem_check = NULL,
|
|
|
|
.get_apic_id = x2apic_get_apic_id,
|
|
.set_apic_id = x2apic_set_apic_id,
|
|
.apic_id_mask = 0xFFFFFFFFu,
|
|
|
|
.cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
|
|
|
|
.send_IPI_mask = x2apic_send_IPI_mask,
|
|
.send_IPI_mask_allbutself = x2apic_send_IPI_mask_allbutself,
|
|
.send_IPI_allbutself = x2apic_send_IPI_allbutself,
|
|
.send_IPI_all = x2apic_send_IPI_all,
|
|
.send_IPI_self = x2apic_send_IPI_self,
|
|
|
|
.trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
|
|
.trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
|
|
.wait_for_init_deassert = NULL,
|
|
.smp_callin_clear_local_apic = NULL,
|
|
.inquire_remote_apic = NULL,
|
|
|
|
.read = native_apic_msr_read,
|
|
.write = native_apic_msr_write,
|
|
.eoi_write = native_apic_msr_eoi_write,
|
|
.icr_read = native_x2apic_icr_read,
|
|
.icr_write = native_x2apic_icr_write,
|
|
.wait_icr_idle = native_x2apic_wait_icr_idle,
|
|
.safe_wait_icr_idle = native_safe_x2apic_wait_icr_idle,
|
|
};
|
|
|
|
apic_driver(apic_x2apic_phys);
|