1 files changed, 0 insertions, 113 deletions

diff --git a/driver/gator_hrtimer_perf.c b/driver/gator_hrtimer_perf.c
deleted file mode 100644
index 7b95399..0000000
--- a/driver/gator_hrtimer_perf.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/**
- * Copyright (C) ARM Limited 2011-2013. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-// gator_hrtimer_gator.c is used if perf is not supported
-//   update, gator_hrtimer_gator.c always used until issues resolved with perf hrtimers
-#if 0
-
-// Note: perf Cortex support added in 2.6.35 and PERF_COUNT_SW_CPU_CLOCK/hrtimer broken on 2.6.35 and 2.6.36
-//       not relevant as this code is not active until 3.0.0, but wanted to document the issue
-
-void (*callback)(void);
-static int profiling_interval;
-static DEFINE_PER_CPU(struct perf_event *, perf_hrtimer);
-static DEFINE_PER_CPU(struct perf_event_attr *, perf_hrtimer_attr);
-
-static void gator_hrtimer_shutdown(void);
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 1, 0)
-static void hrtimer_overflow_handler(struct perf_event *event, int unused, struct perf_sample_data *data, struct pt_regs *regs)
-#else
-static void hrtimer_overflow_handler(struct perf_event *event, struct perf_sample_data *data, struct pt_regs *regs)
-#endif
-{
-        (*callback)();
-}
-
-static int gator_online_single_hrtimer(int cpu)
-{
-        if (per_cpu(perf_hrtimer, cpu) != 0 || per_cpu(perf_hrtimer_attr, cpu) == 0)
-                return 0;
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 1, 0)
-        per_cpu(perf_hrtimer, cpu) = perf_event_create_kernel_counter(per_cpu(perf_hrtimer_attr, cpu), cpu, 0, hrtimer_overflow_handler);
-#else
-        per_cpu(perf_hrtimer, cpu) = perf_event_create_kernel_counter(per_cpu(perf_hrtimer_attr, cpu), cpu, 0, hrtimer_overflow_handler, 0);
-#endif
-        if (IS_ERR(per_cpu(perf_hrtimer, cpu))) {
-                per_cpu(perf_hrtimer, cpu) = NULL;
-                return -1;
-        }
-
-        if (per_cpu(perf_hrtimer, cpu)->state != PERF_EVENT_STATE_ACTIVE) {
-                perf_event_release_kernel(per_cpu(perf_hrtimer, cpu));
-                per_cpu(perf_hrtimer, cpu) = NULL;
-                return -1;
-        }
-
-        return 0;
-}
-
-static void gator_hrtimer_online(int cpu)
-{
-        if (gator_online_single_hrtimer(cpu) < 0) {
-                pr_debug("gator: unable to online the hrtimer on cpu%d\n", cpu);
-        }
-}
-
-static void gator_hrtimer_offline(int cpu)
-{
-        if (per_cpu(perf_hrtimer, cpu)) {
-                perf_event_release_kernel(per_cpu(perf_hrtimer, cpu));
-                per_cpu(perf_hrtimer, cpu) = NULL;
-        }
-}
-
-static int gator_hrtimer_init(int interval, void (*func)(void))
-{
-        u32 size = sizeof(struct perf_event_attr);
-        int cpu;
-
-        callback = func;
-
-        // calculate profiling interval
-        profiling_interval = 1000000000 / interval;
-
-        for_each_present_cpu(cpu) {
-                per_cpu(perf_hrtimer, cpu) = 0;
-                per_cpu(perf_hrtimer_attr, cpu) = kmalloc(size, GFP_KERNEL);
-                if (per_cpu(perf_hrtimer_attr, cpu) == 0) {
-                        gator_hrtimer_shutdown();
-                        return -1;
-                }
-
-                memset(per_cpu(perf_hrtimer_attr, cpu), 0, size);
-                per_cpu(perf_hrtimer_attr, cpu)->type = PERF_TYPE_SOFTWARE;
-                per_cpu(perf_hrtimer_attr, cpu)->size = size;
-                per_cpu(perf_hrtimer_attr, cpu)->config = PERF_COUNT_SW_CPU_CLOCK;
-                per_cpu(perf_hrtimer_attr, cpu)->sample_period = profiling_interval;
-                per_cpu(perf_hrtimer_attr, cpu)->pinned = 1;
-        }
-
-        return 0;
-}
-
-static void gator_hrtimer_shutdown(void)
-{
-        int cpu;
-
-        for_each_present_cpu(cpu) {
-                if (per_cpu(perf_hrtimer_attr, cpu)) {
-                        kfree(per_cpu(perf_hrtimer_attr, cpu));
-                        per_cpu(perf_hrtimer_attr, cpu) = NULL;
-                }
-        }
-}
-
-#endif