add low latency specific kernel configuration

Signed-off-by: Adrian Calianu <adrian.calianu@enea.com>

3 files changed, 14 insertions, 0 deletions

diff --git a/features/lowlatency/hz_1000.cfg b/features/lowlatency/hz_1000.cfg
new file mode 100644
index 0000000..cfe38e6
--- /dev/null
+++ b/features/lowlatency/hz_1000.cfg
@@ -0,0 +1,4 @@
+
+CONFIG_HZ_1000=y
+CONFIG_HZ=1000
+
diff --git a/features/lowlatency/lowlatency_y.scc b/features/lowlatency/lowlatency_y.scc
new file mode 100644
index 0000000..eaf745a
--- /dev/null
+++ b/features/lowlatency/lowlatency_y.scc
@@ -0,0 +1,5 @@
+define KFEATURE_DESCRIPTION "Enable low latency kernel configuration" 
+define KFEATURE_COMPATIBILITY board                 
+                                                    
+kconf non-hardware preempt.cfg                      
+kconf non-hardware hz_1000.cfg                      
diff --git a/features/lowlatency/preempt.cfg b/features/lowlatency/preempt.cfg
new file mode 100644
index 0000000..a3bbe94
--- /dev/null
+++ b/features/lowlatency/preempt.cfg
@@ -0,0 +1,5 @@
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_PREEMPT_RCU=y
+
+CONFIG_PREEMPT=y
+CONFIG_PREEMPT_COUNT=y