PAI implementation, C-RM, C-FIFO.

1 files changed, 42 insertions, 10 deletions

diff --git a/litmus/Kconfig b/litmus/Kconfig
index 7e865d4dd703..5109cf7db7f6 100644
--- a/litmus/Kconfig
+++ b/litmus/Kconfig
@@ -218,18 +218,41 @@ config LITMUS_THREAD_ALL_SOFTIRQ
 
                 If unsure, say No.
 
+
+choice 
+        prompt "Scheduling of interrupt bottom-halves in Litmus."
+        default LITMUS_SOFTIRQD_NONE
+        depends on LITMUS_LOCKING && !LITMUS_THREAD_ALL_SOFTIRQ
+        help
+                Schedule tasklets with known priorities in Litmus.
+
+config LITMUS_SOFTIRQD_NONE
+        bool "No tasklet scheduling in Litmus."
+        help
+          Don't schedule tasklets in Litmus.  Default.
+
 config LITMUS_SOFTIRQD
-       bool "Spawn klitirqd interrupt handling threads."
-           depends on LITMUS_LOCKING
-           default n
-           help
-             Create klitirqd interrupt handling threads.  Work must be
-                 specifically dispatched to these workers.  (Softirqs for
-                 Litmus tasks are not magically redirected to klitirqd.)
+        bool "Spawn klitirqd interrupt handling threads."
+        help
+          Create klitirqd interrupt handling threads.  Work must be
+          specifically dispatched to these workers.  (Softirqs for
+          Litmus tasks are not magically redirected to klitirqd.)
 
-                 G-EDF ONLY for now!
+          G-EDF/RM, C-EDF/RM ONLY for now!
 
-             If unsure, say No.
+
+config LITMUS_PAI_SOFTIRQD
+        bool "Defer tasklets to context switch points."
+        help
+          Only execute scheduled tasklet bottom halves at
+          scheduling points.  Trades context switch overhead
+          at the cost of non-preemptive durations of bottom half
+          processing.
+                 
+          G-EDF/RM, C-EDF/RM ONLY for now!       
+                 
+endchoice          
+           
 
 config NR_LITMUS_SOFTIRQD
            int "Number of klitirqd."
@@ -241,13 +264,22 @@ config NR_LITMUS_SOFTIRQD
 
 config LITMUS_NVIDIA
           bool "Litmus handling of NVIDIA interrupts."
-          depends on LITMUS_SOFTIRQD
+          depends on LITMUS_SOFTIRQD || LITMUS_PAI_SOFTIRQD
           default n
           help
             Direct tasklets from NVIDIA devices to Litmus's klitirqd.
 
                 If unsure, say No.
 
+config NV_DEVICE_NUM
+           int "Number of NVIDIA GPUs."
+           depends on LITMUS_SOFTIRQD || LITMUS_PAI_SOFTIRQD
+           range 1 4096
+           default "1"
+           help
+             Should be (<= to the number of CPUs) and
+                 (<= to the number of GPUs) in your system.
+
 choice
           prompt "CUDA/Driver Version Support"
           default CUDA_4_0