#include <asm/tlbflush.h>
#include <asm/mtrr.h>
#include <asm/vmi.h>
-#include <asm/genapic.h>
+#include <asm/apic.h>
#include <asm/setup.h>
#include <asm/uv/uv.h>
#include <linux/mc146818rtc.h>
-#include <asm/genapic.h>
#include <asm/smpboot_hooks.h>
#ifdef CONFIG_X86_32
DEFINE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info);
EXPORT_PER_CPU_SYMBOL(cpu_info);
-static atomic_t init_deasserted;
-
-
-/* Set if we find a B stepping CPU */
-static int __cpuinitdata smp_b_stepping;
+atomic_t init_deasserted;
#if defined(CONFIG_NUMA) && defined(CONFIG_X86_32)
cpumask_set_cpu(cpuid, cpu_callin_mask);
}
-static int __cpuinitdata unsafe_smp;
-
/*
* Activate a secondary processor.
*/
cpu_idle();
}
-static void __cpuinit smp_apply_quirks(struct cpuinfo_x86 *c)
-{
- /*
- * Mask B, Pentium, but not Pentium MMX
- */
- if (c->x86_vendor == X86_VENDOR_INTEL &&
- c->x86 == 5 &&
- c->x86_mask >= 1 && c->x86_mask <= 4 &&
- c->x86_model <= 3)
- /*
- * Remember we have B step Pentia with bugs
- */
- smp_b_stepping = 1;
-
- /*
- * Certain Athlons might work (for various values of 'work') in SMP
- * but they are not certified as MP capable.
- */
- if ((c->x86_vendor == X86_VENDOR_AMD) && (c->x86 == 6)) {
-
- if (num_possible_cpus() == 1)
- goto valid_k7;
-
- /* Athlon 660/661 is valid. */
- if ((c->x86_model == 6) && ((c->x86_mask == 0) ||
- (c->x86_mask == 1)))
- goto valid_k7;
-
- /* Duron 670 is valid */
- if ((c->x86_model == 7) && (c->x86_mask == 0))
- goto valid_k7;
-
- /*
- * Athlon 662, Duron 671, and Athlon >model 7 have capability
- * bit. It's worth noting that the A5 stepping (662) of some
- * Athlon XP's have the MP bit set.
- * See http://www.heise.de/newsticker/data/jow-18.10.01-000 for
- * more.
- */
- if (((c->x86_model == 6) && (c->x86_mask >= 2)) ||
- ((c->x86_model == 7) && (c->x86_mask >= 1)) ||
- (c->x86_model > 7))
- if (cpu_has_mp)
- goto valid_k7;
-
- /* If we get here, not a certified SMP capable AMD system. */
- unsafe_smp = 1;
- }
-
-valid_k7:
- ;
-}
-
-static void __cpuinit smp_checks(void)
-{
- if (smp_b_stepping)
- printk(KERN_WARNING "WARNING: SMP operation may be unreliable"
- "with B stepping processors.\n");
-
- /*
- * Don't taint if we are running SMP kernel on a single non-MP
- * approved Athlon
- */
- if (unsafe_smp && num_online_cpus() > 1) {
- printk(KERN_INFO "WARNING: This combination of AMD"
- "processors is not suitable for SMP.\n");
- add_taint(TAINT_UNSAFE_SMP);
- }
-}
-
/*
* The bootstrap kernel entry code has set these up. Save them for
* a given CPU
c->cpu_index = id;
if (id != 0)
identify_secondary_cpu(c);
- smp_apply_quirks(c);
}
unsigned long send_status, accept_status = 0;
int maxlvt, num_starts, j;
- if (get_uv_system_type() == UV_NON_UNIQUE_APIC) {
- send_status = uv_wakeup_secondary(phys_apicid, start_eip);
- atomic_set(&init_deasserted, 1);
- return send_status;
- }
-
maxlvt = lapic_get_maxlvt();
/*
complete(&c_idle->done);
}
-static int __cpuinit do_boot_cpu(int apicid, int cpu)
/*
* NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad
* (ie clustered apic addressing mode), this is a LOGICAL apic ID.
- * Returns zero if CPU booted OK, else error code from ->wakeup_cpu.
+ * Returns zero if CPU booted OK, else error code from
+ * ->wakeup_secondary_cpu.
*/
+static int __cpuinit do_boot_cpu(int apicid, int cpu)
{
unsigned long boot_error = 0;
- int timeout;
unsigned long start_ip;
- unsigned short nmi_high = 0, nmi_low = 0;
+ int timeout;
struct create_idle c_idle = {
- .cpu = cpu,
- .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done),
+ .cpu = cpu,
+ .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done),
};
+
INIT_WORK(&c_idle.work, do_fork_idle);
alternatives_smp_switch(1);
pr_debug("Setting warm reset code and vector.\n");
- if (apic->store_NMI_vector)
- apic->store_NMI_vector(&nmi_high, &nmi_low);
-
smpboot_setup_warm_reset_vector(start_ip);
/*
* Be paranoid about clearing APIC errors.
}
/*
- * Starting actual IPI sequence...
+ * Kick the secondary CPU. Use the method in the APIC driver
+ * if it's defined - or use an INIT boot APIC message otherwise:
*/
- boot_error = apic->wakeup_cpu(apicid, start_ip);
+ if (apic->wakeup_secondary_cpu)
+ boot_error = apic->wakeup_secondary_cpu(apicid, start_ip);
+ else
+ boot_error = wakeup_secondary_cpu_via_init(apicid, start_ip);
if (!boot_error) {
/*
current_thread_info()->cpu = 0; /* needed? */
set_cpu_sibling_map(0);
-#ifdef CONFIG_X86_64
enable_IR_x2apic();
+#ifdef CONFIG_X86_64
default_setup_apic_routing();
#endif
*/
setup_local_APIC();
-#ifdef CONFIG_X86_64
/*
* Enable IO APIC before setting up error vector
*/
if (!skip_ioapic_setup && nr_ioapics)
enable_IO_APIC();
-#endif
+
end_local_APIC_setup();
map_cpu_to_logical_apicid();
pr_debug("Boot done.\n");
impress_friends();
- smp_checks();
#ifdef CONFIG_X86_IO_APIC
setup_ioapic_dest();
#endif
git.openpandora.org / pandora-kernel.git / blobdiff