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-rw-r--r--tools/sched_ext/include/scx/common.bpf.h5
-rw-r--r--tools/sched_ext/include/scx/compat.bpf.h31
2 files changed, 36 insertions, 0 deletions
diff --git a/tools/sched_ext/include/scx/common.bpf.h b/tools/sched_ext/include/scx/common.bpf.h
index 77bbe0199a32..ca7cc4108b45 100644
--- a/tools/sched_ext/include/scx/common.bpf.h
+++ b/tools/sched_ext/include/scx/common.bpf.h
@@ -71,14 +71,19 @@ u32 scx_bpf_cpuperf_cap(s32 cpu) __ksym __weak;
u32 scx_bpf_cpuperf_cur(s32 cpu) __ksym __weak;
void scx_bpf_cpuperf_set(s32 cpu, u32 perf) __ksym __weak;
u32 scx_bpf_nr_cpu_ids(void) __ksym __weak;
+int scx_bpf_cpu_node(s32 cpu) __ksym __weak;
const struct cpumask *scx_bpf_get_possible_cpumask(void) __ksym __weak;
const struct cpumask *scx_bpf_get_online_cpumask(void) __ksym __weak;
void scx_bpf_put_cpumask(const struct cpumask *cpumask) __ksym __weak;
+const struct cpumask *scx_bpf_get_idle_cpumask_node(int node) __ksym __weak;
const struct cpumask *scx_bpf_get_idle_cpumask(void) __ksym;
+const struct cpumask *scx_bpf_get_idle_smtmask_node(int node) __ksym __weak;
const struct cpumask *scx_bpf_get_idle_smtmask(void) __ksym;
void scx_bpf_put_idle_cpumask(const struct cpumask *cpumask) __ksym;
bool scx_bpf_test_and_clear_cpu_idle(s32 cpu) __ksym;
+s32 scx_bpf_pick_idle_cpu_node(const cpumask_t *cpus_allowed, int node, u64 flags) __ksym __weak;
s32 scx_bpf_pick_idle_cpu(const cpumask_t *cpus_allowed, u64 flags) __ksym;
+s32 scx_bpf_pick_any_cpu_node(const cpumask_t *cpus_allowed, int node, u64 flags) __ksym __weak;
s32 scx_bpf_pick_any_cpu(const cpumask_t *cpus_allowed, u64 flags) __ksym;
bool scx_bpf_task_running(const struct task_struct *p) __ksym;
s32 scx_bpf_task_cpu(const struct task_struct *p) __ksym;
diff --git a/tools/sched_ext/include/scx/compat.bpf.h b/tools/sched_ext/include/scx/compat.bpf.h
index e5fa72f9bf22..5a9bcdb52e79 100644
--- a/tools/sched_ext/include/scx/compat.bpf.h
+++ b/tools/sched_ext/include/scx/compat.bpf.h
@@ -183,6 +183,37 @@ static inline bool __COMPAT_is_enq_cpu_selected(u64 enq_flags)
bpf_ktime_get_ns())
/*
+ *
+ * v6.15: Introduce NUMA-aware kfuncs to operate with per-node idle
+ * cpumasks.
+ *
+ * Preserve the following __COMPAT_scx_*_node macros until v6.17.
+ */
+#define __COMPAT_scx_bpf_cpu_node(cpu) \
+ (bpf_ksym_exists(scx_bpf_cpu_node) ? \
+ scx_bpf_cpu_node(cpu) : 0)
+
+#define __COMPAT_scx_bpf_get_idle_cpumask_node(node) \
+ (bpf_ksym_exists(scx_bpf_get_idle_cpumask_node) ? \
+ scx_bpf_get_idle_cpumask_node(node) : \
+ scx_bpf_get_idle_cpumask()) \
+
+#define __COMPAT_scx_bpf_get_idle_smtmask_node(node) \
+ (bpf_ksym_exists(scx_bpf_get_idle_smtmask_node) ? \
+ scx_bpf_get_idle_smtmask_node(node) : \
+ scx_bpf_get_idle_smtmask())
+
+#define __COMPAT_scx_bpf_pick_idle_cpu_node(cpus_allowed, node, flags) \
+ (bpf_ksym_exists(scx_bpf_pick_idle_cpu_node) ? \
+ scx_bpf_pick_idle_cpu_node(cpus_allowed, node, flags) : \
+ scx_bpf_pick_idle_cpu(cpus_allowed, flags))
+
+#define __COMPAT_scx_bpf_pick_any_cpu_node(cpus_allowed, node, flags) \
+ (bpf_ksym_exists(scx_bpf_pick_any_cpu_node) ? \
+ scx_bpf_pick_any_cpu_node(cpus_allowed, node, flags) : \
+ scx_bpf_pick_any_cpu(cpus_allowed, flags))
+
+/*
* Define sched_ext_ops. This may be expanded to define multiple variants for
* backward compatibility. See compat.h::SCX_OPS_LOAD/ATTACH().
*/