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authorIngo Molnar <mingo@elte.hu>2009-02-17 18:09:24 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-17 18:17:36 +0100
commitf62bae5009c1ba596cd475cafbc83e0570a36e26 (patch)
tree0c5a3000c566f42a7cc25d6c03d69d20b9bd0166 /arch/x86/kernel/ipi.c
parentbe163a159b223e94b3180afdd47a8d468eb9a492 (diff)
x86, apic: move APIC drivers to arch/x86/kernel/apic/*
arch/x86/kernel/ is getting a bit crowded, and the APIC drivers are scattered into various different files. Move them to arch/x86/kernel/apic/*, and also remove the 'gen' prefix from those which had it. Also move APIC related functionality: the IO-APIC driver, the NMI and the IPI code. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/ipi.c')
-rw-r--r--arch/x86/kernel/ipi.c164
1 files changed, 0 insertions, 164 deletions
diff --git a/arch/x86/kernel/ipi.c b/arch/x86/kernel/ipi.c
deleted file mode 100644
index dbf5445727a..00000000000
--- a/arch/x86/kernel/ipi.c
+++ /dev/null
@@ -1,164 +0,0 @@
-#include <linux/cpumask.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-
-#include <linux/mm.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/kernel_stat.h>
-#include <linux/mc146818rtc.h>
-#include <linux/cache.h>
-#include <linux/cpu.h>
-#include <linux/module.h>
-
-#include <asm/smp.h>
-#include <asm/mtrr.h>
-#include <asm/tlbflush.h>
-#include <asm/mmu_context.h>
-#include <asm/apic.h>
-#include <asm/proto.h>
-#include <asm/ipi.h>
-
-void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector)
-{
- unsigned long query_cpu;
- unsigned long flags;
-
- /*
- * Hack. The clustered APIC addressing mode doesn't allow us to send
- * to an arbitrary mask, so I do a unicast to each CPU instead.
- * - mbligh
- */
- local_irq_save(flags);
- for_each_cpu(query_cpu, mask) {
- __default_send_IPI_dest_field(per_cpu(x86_cpu_to_apicid,
- query_cpu), vector, APIC_DEST_PHYSICAL);
- }
- local_irq_restore(flags);
-}
-
-void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask,
- int vector)
-{
- unsigned int this_cpu = smp_processor_id();
- unsigned int query_cpu;
- unsigned long flags;
-
- /* See Hack comment above */
-
- local_irq_save(flags);
- for_each_cpu(query_cpu, mask) {
- if (query_cpu == this_cpu)
- continue;
- __default_send_IPI_dest_field(per_cpu(x86_cpu_to_apicid,
- query_cpu), vector, APIC_DEST_PHYSICAL);
- }
- local_irq_restore(flags);
-}
-
-void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,
- int vector)
-{
- unsigned long flags;
- unsigned int query_cpu;
-
- /*
- * Hack. The clustered APIC addressing mode doesn't allow us to send
- * to an arbitrary mask, so I do a unicasts to each CPU instead. This
- * should be modified to do 1 message per cluster ID - mbligh
- */
-
- local_irq_save(flags);
- for_each_cpu(query_cpu, mask)
- __default_send_IPI_dest_field(
- apic->cpu_to_logical_apicid(query_cpu), vector,
- apic->dest_logical);
- local_irq_restore(flags);
-}
-
-void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask,
- int vector)
-{
- unsigned long flags;
- unsigned int query_cpu;
- unsigned int this_cpu = smp_processor_id();
-
- /* See Hack comment above */
-
- local_irq_save(flags);
- for_each_cpu(query_cpu, mask) {
- if (query_cpu == this_cpu)
- continue;
- __default_send_IPI_dest_field(
- apic->cpu_to_logical_apicid(query_cpu), vector,
- apic->dest_logical);
- }
- local_irq_restore(flags);
-}
-
-#ifdef CONFIG_X86_32
-
-/*
- * This is only used on smaller machines.
- */
-void default_send_IPI_mask_logical(const struct cpumask *cpumask, int vector)
-{
- unsigned long mask = cpumask_bits(cpumask)[0];
- unsigned long flags;
-
- local_irq_save(flags);
- WARN_ON(mask & ~cpumask_bits(cpu_online_mask)[0]);
- __default_send_IPI_dest_field(mask, vector, apic->dest_logical);
- local_irq_restore(flags);
-}
-
-void default_send_IPI_allbutself(int vector)
-{
- /*
- * if there are no other CPUs in the system then we get an APIC send
- * error if we try to broadcast, thus avoid sending IPIs in this case.
- */
- if (!(num_online_cpus() > 1))
- return;
-
- __default_local_send_IPI_allbutself(vector);
-}
-
-void default_send_IPI_all(int vector)
-{
- __default_local_send_IPI_all(vector);
-}
-
-void default_send_IPI_self(int vector)
-{
- __default_send_IPI_shortcut(APIC_DEST_SELF, vector, apic->dest_logical);
-}
-
-/* must come after the send_IPI functions above for inlining */
-static int convert_apicid_to_cpu(int apic_id)
-{
- int i;
-
- for_each_possible_cpu(i) {
- if (per_cpu(x86_cpu_to_apicid, i) == apic_id)
- return i;
- }
- return -1;
-}
-
-int safe_smp_processor_id(void)
-{
- int apicid, cpuid;
-
- if (!boot_cpu_has(X86_FEATURE_APIC))
- return 0;
-
- apicid = hard_smp_processor_id();
- if (apicid == BAD_APICID)
- return 0;
-
- cpuid = convert_apicid_to_cpu(apicid);
-
- return cpuid >= 0 ? cpuid : 0;
-}
-#endif