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>
This commit is contained in:
Ingo Molnar
164
arch/x86/kernel/apic/ipi.c
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164
arch/x86/kernel/apic/ipi.c
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#include <linux/cpumask.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/delay.h>
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#include <linux/spinlock.h>
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#include <linux/kernel_stat.h>
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#include <linux/mc146818rtc.h>
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#include <linux/cache.h>
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#include <linux/cpu.h>
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#include <linux/module.h>
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#include <asm/smp.h>
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#include <asm/mtrr.h>
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#include <asm/tlbflush.h>
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#include <asm/mmu_context.h>
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#include <asm/apic.h>
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#include <asm/proto.h>
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#include <asm/ipi.h>
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void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector)
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{
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unsigned long query_cpu;
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unsigned long flags;
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/*
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* Hack. The clustered APIC addressing mode doesn't allow us to send
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* to an arbitrary mask, so I do a unicast to each CPU instead.
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* - mbligh
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*/
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local_irq_save(flags);
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for_each_cpu(query_cpu, mask) {
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__default_send_IPI_dest_field(per_cpu(x86_cpu_to_apicid,
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query_cpu), vector, APIC_DEST_PHYSICAL);
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}
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local_irq_restore(flags);
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}
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void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask,
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int vector)
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{
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unsigned int this_cpu = smp_processor_id();
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unsigned int query_cpu;
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unsigned long flags;
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/* See Hack comment above */
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local_irq_save(flags);
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for_each_cpu(query_cpu, mask) {
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if (query_cpu == this_cpu)
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continue;
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__default_send_IPI_dest_field(per_cpu(x86_cpu_to_apicid,
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query_cpu), vector, APIC_DEST_PHYSICAL);
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}
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local_irq_restore(flags);
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}
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void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,
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int vector)
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{
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unsigned long flags;
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unsigned int query_cpu;
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/*
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* Hack. The clustered APIC addressing mode doesn't allow us to send
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* to an arbitrary mask, so I do a unicasts to each CPU instead. This
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* should be modified to do 1 message per cluster ID - mbligh
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*/
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local_irq_save(flags);
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for_each_cpu(query_cpu, mask)
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__default_send_IPI_dest_field(
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apic->cpu_to_logical_apicid(query_cpu), vector,
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apic->dest_logical);
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local_irq_restore(flags);
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}
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void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask,
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int vector)
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{
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unsigned long flags;
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unsigned int query_cpu;
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unsigned int this_cpu = smp_processor_id();
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/* See Hack comment above */
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local_irq_save(flags);
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for_each_cpu(query_cpu, mask) {
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if (query_cpu == this_cpu)
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continue;
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__default_send_IPI_dest_field(
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apic->cpu_to_logical_apicid(query_cpu), vector,
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apic->dest_logical);
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}
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local_irq_restore(flags);
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}
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#ifdef CONFIG_X86_32
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/*
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* This is only used on smaller machines.
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*/
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void default_send_IPI_mask_logical(const struct cpumask *cpumask, int vector)
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{
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unsigned long mask = cpumask_bits(cpumask)[0];
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unsigned long flags;
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local_irq_save(flags);
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WARN_ON(mask & ~cpumask_bits(cpu_online_mask)[0]);
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__default_send_IPI_dest_field(mask, vector, apic->dest_logical);
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local_irq_restore(flags);
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}
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void default_send_IPI_allbutself(int vector)
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{
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/*
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* if there are no other CPUs in the system then we get an APIC send
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* error if we try to broadcast, thus avoid sending IPIs in this case.
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*/
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if (!(num_online_cpus() > 1))
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return;
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__default_local_send_IPI_allbutself(vector);
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}
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void default_send_IPI_all(int vector)
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{
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__default_local_send_IPI_all(vector);
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}
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void default_send_IPI_self(int vector)
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{
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__default_send_IPI_shortcut(APIC_DEST_SELF, vector, apic->dest_logical);
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}
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/* must come after the send_IPI functions above for inlining */
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static int convert_apicid_to_cpu(int apic_id)
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{
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int i;
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for_each_possible_cpu(i) {
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if (per_cpu(x86_cpu_to_apicid, i) == apic_id)
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return i;
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}
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return -1;
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}
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int safe_smp_processor_id(void)
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{
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int apicid, cpuid;
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if (!boot_cpu_has(X86_FEATURE_APIC))
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return 0;
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apicid = hard_smp_processor_id();
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if (apicid == BAD_APICID)
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return 0;
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cpuid = convert_apicid_to_cpu(apicid);
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return cpuid >= 0 ? cpuid : 0;
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}
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#endif
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