cpumask: Add helper cpumask_available()

[GitHub/exynos8895/android_kernel_samsung_universal8895.git] / include / linux / cpumask.h

diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 59915ea5373ca798dca185070e11af88cc7745d9..61b990836acae10bba5304646f169c64fed366cf 100644 (file)
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -99,6 +99,12 @@ extern const struct cpumask *const cpu_active_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)
+#ifdef CONFIG_SCHED_HMP
+extern struct cpumask hmp_slow_cpu_mask;
+extern struct cpumask hmp_fast_cpu_mask;
+#define num_hmp_fast_cpus()    cpumask_weight(&hmp_fast_cpu_mask)
+#define num_hmp_slow_cpus()    cpumask_weight(&hmp_slow_cpu_mask)
+#endif
 #else
 #define num_online_cpus()      1U
 #define num_possible_cpus()    1U
@@ -556,7 +562,7 @@ static inline void cpumask_copy(struct cpumask *dstp,
 static inline int cpumask_parse_user(const char __user *buf, int len,
                                     struct cpumask *dstp)
 {
-       return bitmap_parse_user(buf, len, cpumask_bits(dstp), nr_cpu_ids);
+       return bitmap_parse_user(buf, len, cpumask_bits(dstp), nr_cpumask_bits);
 }
 
 /**
@@ -571,7 +577,7 @@ static inline int cpumask_parselist_user(const char __user *buf, int len,
                                     struct cpumask *dstp)
 {
        return bitmap_parselist_user(buf, len, cpumask_bits(dstp),
-                                    nr_cpu_ids);
+                                    nr_cpumask_bits);
 }
 
 /**
@@ -586,7 +592,7 @@ static inline int cpumask_parse(const char *buf, struct cpumask *dstp)
        char *nl = strchr(buf, '\n');
        unsigned int len = nl ? (unsigned int)(nl - buf) : strlen(buf);
 
-       return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpu_ids);
+       return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpumask_bits);
 }
 
 /**
@@ -598,7 +604,7 @@ static inline int cpumask_parse(const char *buf, struct cpumask *dstp)
  */
 static inline int cpulist_parse(const char *buf, struct cpumask *dstp)
 {
-       return bitmap_parselist(buf, cpumask_bits(dstp), nr_cpu_ids);
+       return bitmap_parselist(buf, cpumask_bits(dstp), nr_cpumask_bits);
 }
 
 /**
@@ -661,6 +667,11 @@ void alloc_bootmem_cpumask_var(cpumask_var_t *mask);
 void free_cpumask_var(cpumask_var_t mask);
 void free_bootmem_cpumask_var(cpumask_var_t mask);
 
+static inline bool cpumask_available(cpumask_var_t mask)
+{
+       return mask != NULL;
+}
+
 #else
 typedef struct cpumask cpumask_var_t[1];
 
@@ -701,6 +712,11 @@ static inline void free_cpumask_var(cpumask_var_t mask)
 static inline void free_bootmem_cpumask_var(cpumask_var_t mask)
 {
 }
+
+static inline bool cpumask_available(cpumask_var_t mask)
+{
+       return true;
+}
 #endif /* CONFIG_CPUMASK_OFFSTACK */
 
 /* It's common to want to use cpu_all_mask in struct member initializers,