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authorMike Travis <travis@sgi.com>2008-12-16 17:33:54 -0800
committerMike Travis <travis@sgi.com>2008-12-16 17:40:56 -0800
commit95d313cf1c1ecedc8bec5727b09bdacbf67dfc45 (patch)
treeee4aa8aff232bb30bb725c5670bb67d73484022d /arch/x86/include/asm/mach-default
parenta1681965011916c2f1f0f1f87e70784f5d5d5be5 (diff)
x86: Add cpu_mask_to_apicid_and
Impact: new API Add a helper function that takes two cpumask's, and's them and then returns the apicid of the result. This removes a need in io_apic.c that uses a temporary cpumask to hold (mask & cfg->domain). Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'arch/x86/include/asm/mach-default')
-rw-r--r--arch/x86/include/asm/mach-default/mach_apic.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mach-default/mach_apic.h b/arch/x86/include/asm/mach-default/mach_apic.h
index c18896b0508..229b605d104 100644
--- a/arch/x86/include/asm/mach-default/mach_apic.h
+++ b/arch/x86/include/asm/mach-default/mach_apic.h
@@ -28,6 +28,7 @@ static inline const cpumask_t *target_cpus(void)
#define apic_id_registered (genapic->apic_id_registered)
#define init_apic_ldr (genapic->init_apic_ldr)
#define cpu_mask_to_apicid (genapic->cpu_mask_to_apicid)
+#define cpu_mask_to_apicid_and (genapic->cpu_mask_to_apicid_and)
#define phys_pkg_id (genapic->phys_pkg_id)
#define vector_allocation_domain (genapic->vector_allocation_domain)
#define read_apic_id() (GET_APIC_ID(apic_read(APIC_ID)))
@@ -66,6 +67,15 @@ static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
return cpus_addr(*cpumask)[0];
}
+static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask,
+ const cpumask_t *andmask)
+{
+ unsigned long mask1 = cpus_addr(*cpumask)[0];
+ unsigned long mask2 = cpus_addr(*andmask)[0];
+
+ return (unsigned int)(mask1 & mask2);
+}
+
static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
{
return cpuid_apic >> index_msb;