diff options
Diffstat (limited to 'include/linux/cpumask.h')
| -rw-r--r-- | include/linux/cpumask.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index bb3a4bb35183..e0bfecde4e7b 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -53,6 +53,7 @@ extern int nr_cpu_ids; * cpu_present_mask - has bit 'cpu' set iff cpu is populated * cpu_online_mask - has bit 'cpu' set iff cpu available to scheduler * cpu_active_mask - has bit 'cpu' set iff cpu available to migration + * cpu_isolated_mask- has bit 'cpu' set iff cpu isolated * * If !CONFIG_HOTPLUG_CPU, present == possible, and active == online. * @@ -89,25 +90,38 @@ extern const struct cpumask *const cpu_possible_mask; extern const struct cpumask *const cpu_online_mask; extern const struct cpumask *const cpu_present_mask; extern const struct cpumask *const cpu_active_mask; +extern const struct cpumask *const cpu_isolated_mask; #if NR_CPUS > 1 #define num_online_cpus() cpumask_weight(cpu_online_mask) #define num_possible_cpus() cpumask_weight(cpu_possible_mask) #define num_present_cpus() cpumask_weight(cpu_present_mask) #define num_active_cpus() cpumask_weight(cpu_active_mask) +#define num_isolated_cpus() cpumask_weight(cpu_isolated_mask) +#define num_online_uniso_cpus() \ +({ \ + cpumask_t mask; \ + \ + cpumask_andnot(&mask, cpu_online_mask, cpu_isolated_mask); \ + cpumask_weight(&mask); \ +}) #define cpu_online(cpu) cpumask_test_cpu((cpu), cpu_online_mask) #define cpu_possible(cpu) cpumask_test_cpu((cpu), cpu_possible_mask) #define cpu_present(cpu) cpumask_test_cpu((cpu), cpu_present_mask) #define cpu_active(cpu) cpumask_test_cpu((cpu), cpu_active_mask) +#define cpu_isolated(cpu) cpumask_test_cpu((cpu), cpu_isolated_mask) #else #define num_online_cpus() 1U #define num_possible_cpus() 1U #define num_present_cpus() 1U #define num_active_cpus() 1U +#define num_isolated_cpus() 0U +#define num_online_uniso_cpus() 1U #define cpu_online(cpu) ((cpu) == 0) #define cpu_possible(cpu) ((cpu) == 0) #define cpu_present(cpu) ((cpu) == 0) #define cpu_active(cpu) ((cpu) == 0) +#define cpu_isolated(cpu) ((cpu) != 0) #endif /* verify cpu argument to cpumask_* operators */ @@ -724,12 +738,14 @@ extern const DECLARE_BITMAP(cpu_all_bits, NR_CPUS); #define for_each_possible_cpu(cpu) for_each_cpu((cpu), cpu_possible_mask) #define for_each_online_cpu(cpu) for_each_cpu((cpu), cpu_online_mask) #define for_each_present_cpu(cpu) for_each_cpu((cpu), cpu_present_mask) +#define for_each_isolated_cpu(cpu) for_each_cpu((cpu), cpu_isolated_mask) /* Wrappers for arch boot code to manipulate normally-constant masks */ void set_cpu_possible(unsigned int cpu, bool possible); void set_cpu_present(unsigned int cpu, bool present); void set_cpu_online(unsigned int cpu, bool online); void set_cpu_active(unsigned int cpu, bool active); +void set_cpu_isolated(unsigned int cpu, bool isolated); void init_cpu_present(const struct cpumask *src); void init_cpu_possible(const struct cpumask *src); void init_cpu_online(const struct cpumask *src); |