Remove PAI support

Support for process-aware interrupt handling was broken
when the tasklet ownership model changed in GPUSync,
post-ECRTS12. We will want to re-add support later,
but remove it for now.

3 files changed, 1 insertions, 11 deletions

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index af52b5c497b9..7ffc79559866 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -502,7 +502,7 @@ struct tasklet_struct
         void (*func)(unsigned long);
         unsigned long data;
 #if 0
-#if defined(CONFIG_LITMUS_SOFTIRQD) || defined(CONFIG_LITMUS_PAI_SOFTIRQD)
+#if defined(CONFIG_LITMUS_SOFTIRQD)
         struct task_struct *owner;
 #endif
 #endif
diff --git a/include/litmus/sched_plugin.h b/include/litmus/sched_plugin.h
index 82e62e8283e9..0982f5ff2631 100644
--- a/include/litmus/sched_plugin.h
+++ b/include/litmus/sched_plugin.h
@@ -165,11 +165,6 @@ struct sched_plugin {
 #ifdef CONFIG_LITMUS_AFFINITY_LOCKING
         allocate_affinity_observer_t allocate_aff_obs;
 #endif
-#ifdef CONFIG_LITMUS_PAI_SOFTIRQD
-        enqueue_pai_tasklet_t           enqueue_pai_tasklet;
-        change_prio_pai_tasklet_t       change_prio_pai_tasklet;
-        run_tasklets_t                          run_tasklets;
-#endif
 
 #if defined(CONFIG_LITMUS_NVIDIA) && defined(CONFIG_LITMUS_SOFTIRQD)
         default_cpu_for_gpu_t           map_gpu_to_cpu;
diff --git a/include/litmus/trace.h b/include/litmus/trace.h
index f10d8a0311cc..6410ab91f42d 100644
--- a/include/litmus/trace.h
+++ b/include/litmus/trace.h
@@ -160,11 +160,6 @@ feather_callback void save_timestamp_hide_irq(unsigned long event);
 #define TS_NV_RELEASE_BOTISR_END        TIMESTAMP(205)
 #endif
 
-#ifdef CONFIG_LITMUS_PAI_SOFTIRQD
-#define TS_NV_SCHED_BOTISR_START        TIMESTAMP(206)
-#define TS_NV_SCHED_BOTISR_END          TIMESTAMP(207)
-#endif
-
 #define TS_RELEASE_LATENCY(when)        LTIMESTAMP(208, &(when))
 
 #define TS_UPDATE_GPU_EST_START         TIMESTAMP(210)