diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-02 11:44:09 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-02 11:44:09 -0800 |
commit | b840d79631c882786925303c2b0f4fefc31845ed (patch) | |
tree | cda60a95d4507fe1321fc285af38982d7eb9693b /arch/x86/include/asm/bigsmp/apic.h | |
parent | 597b0d21626da4e6f09f132442caf0cc2b0eb47c (diff) | |
parent | c3d80000e3a812fe5a200d6bde755fbd7fa65481 (diff) |
Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits)
x86: export vector_used_by_percpu_irq
x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()
sched: nominate preferred wakeup cpu, fix
x86: fix lguest used_vectors breakage, -v2
x86: fix warning in arch/x86/kernel/io_apic.c
sched: fix warning in kernel/sched.c
sched: move test_sd_parent() to an SMP section of sched.h
sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0
sched: activate active load balancing in new idle cpus
sched: bias task wakeups to preferred semi-idle packages
sched: nominate preferred wakeup cpu
sched: favour lower logical cpu number for sched_mc balance
sched: framework for sched_mc/smt_power_savings=N
sched: convert BALANCE_FOR_xx_POWER to inline functions
x86: use possible_cpus=NUM to extend the possible cpus allowed
x86: fix cpu_mask_to_apicid_and to include cpu_online_mask
x86: update io_apic.c to the new cpumask code
x86: Introduce topology_core_cpumask()/topology_thread_cpumask()
x86: xen: use smp_call_function_many()
x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c
...
Fixed up trivial conflict in kernel/time/tick-sched.c manually
Diffstat (limited to 'arch/x86/include/asm/bigsmp/apic.h')
-rw-r--r-- | arch/x86/include/asm/bigsmp/apic.h | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/arch/x86/include/asm/bigsmp/apic.h b/arch/x86/include/asm/bigsmp/apic.h index ce547f24a1c..d8dd9f53791 100644 --- a/arch/x86/include/asm/bigsmp/apic.h +++ b/arch/x86/include/asm/bigsmp/apic.h @@ -9,12 +9,12 @@ static inline int apic_id_registered(void) return (1); } -static inline cpumask_t target_cpus(void) +static inline const cpumask_t *target_cpus(void) { #ifdef CONFIG_SMP - return cpu_online_map; + return &cpu_online_map; #else - return cpumask_of_cpu(0); + return &cpumask_of_cpu(0); #endif } @@ -79,7 +79,7 @@ static inline int apicid_to_node(int logical_apicid) static inline int cpu_present_to_apicid(int mps_cpu) { - if (mps_cpu < NR_CPUS) + if (mps_cpu < nr_cpu_ids) return (int) per_cpu(x86_bios_cpu_apicid, mps_cpu); return BAD_APICID; @@ -94,7 +94,7 @@ extern u8 cpu_2_logical_apicid[]; /* Mapping from cpu number to logical apicid */ static inline int cpu_to_logical_apicid(int cpu) { - if (cpu >= NR_CPUS) + if (cpu >= nr_cpu_ids) return BAD_APICID; return cpu_physical_id(cpu); } @@ -119,16 +119,34 @@ static inline int check_phys_apicid_present(int boot_cpu_physical_apicid) } /* As we are using single CPU as destination, pick only one CPU here */ -static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask) +static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask) { int cpu; int apicid; - cpu = first_cpu(cpumask); + cpu = first_cpu(*cpumask); apicid = cpu_to_logical_apicid(cpu); return apicid; } +static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask, + const struct cpumask *andmask) +{ + int cpu; + + /* + * We're using fixed IRQ delivery, can only return one phys APIC ID. + * May as well be the first. + */ + for_each_cpu_and(cpu, cpumask, andmask) + if (cpumask_test_cpu(cpu, cpu_online_mask)) + break; + if (cpu < nr_cpu_ids) + return cpu_to_logical_apicid(cpu); + + return BAD_APICID; +} + static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb) { return cpuid_apic >> index_msb; |