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authorThomas Gleixner <tglx@linutronix.de>2017-09-14 00:29:37 +0300
committerThomas Gleixner <tglx@linutronix.de>2017-09-25 21:51:56 +0300
commit9f9e3bb1cf2ecba7697bfb5e350ad2648e69dbdf (patch)
tree15cd5de24aef1fa44498aee33fe4ae76c5c751eb /arch/x86/include/asm/apic.h
parent99a1482d8aa105922dc4a3360ab11600f0bc9d80 (diff)
downloadlinux-9f9e3bb1cf2ecba7697bfb5e350ad2648e69dbdf.tar.xz
x86/apic: Add replacement for cpu_mask_to_apicid()
As preparation for replacing the vector allocator, provide a new function which takes a cpu number instead of a cpu mask to calculate/lookup the resulting APIC destination id. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Juergen Gross <jgross@suse.com> Tested-by: Yu Chen <yu.c.chen@intel.com> Acked-by: Juergen Gross <jgross@suse.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Alok Kataria <akataria@vmware.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Rui Zhang <rui.zhang@intel.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Len Brown <lenb@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/apic.h')
-rw-r--r--arch/x86/include/asm/apic.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index ff0bddabaa04..01bcaa8b62b3 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -303,6 +303,7 @@ struct apic {
int (*cpu_mask_to_apicid)(const struct cpumask *cpumask,
struct irq_data *irqdata,
unsigned int *apicid);
+ u32 (*calc_dest_apicid)(unsigned int cpu);
/* ICR related functions */
u64 (*icr_read)(void);
@@ -486,6 +487,10 @@ static inline unsigned int read_apic_id(void)
extern int default_apic_id_valid(int apicid);
extern int default_acpi_madt_oem_check(char *, char *);
extern void default_setup_apic_routing(void);
+
+extern u32 apic_default_calc_apicid(unsigned int cpu);
+extern u32 apic_flat_calc_apicid(unsigned int cpu);
+
extern int flat_cpu_mask_to_apicid(const struct cpumask *cpumask,
struct irq_data *irqdata,
unsigned int *apicid);