1 files changed, 0 insertions, 164 deletions
diff --git a/powerpc/pmu/ebb/instruction_count_test.c b/powerpc/pmu/ebb/instruction_count_test.c
deleted file mode 100644
index f8190fa..0000000
--- a/powerpc/pmu/ebb/instruction_count_test.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
- */
-
-#define _GNU_SOURCE
-
-#include <stdio.h>
-#include <stdbool.h>
-#include <string.h>
-#include <sys/prctl.h>
-
-#include "ebb.h"
-
-
-/*
- * Run a calibrated instruction loop and count instructions executed using
- * EBBs. Make sure the counts look right.
- */
-
-extern void thirty_two_instruction_loop(uint64_t loops);
-
-static bool counters_frozen = true;
-
-static int do_count_loop(struct event *event, uint64_t instructions,
-			 uint64_t overhead, bool report)
-{
-	int64_t difference, expected;
-	double percentage;
-
-	clear_ebb_stats();
-
-	counters_frozen = false;
-	mb();
-	mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~MMCR0_FC);
-
-	thirty_two_instruction_loop(instructions >> 5);
-
-	counters_frozen = true;
-	mb();
-	mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) | MMCR0_FC);
-
-	count_pmc(4, sample_period);
-
-	event->result.value = ebb_state.stats.pmc_count[4-1];
-	expected = instructions + overhead;
-	difference = event->result.value - expected;
-	percentage = (double)difference / event->result.value * 100;
-
-	if (report) {
-		printf("Looped for %lu instructions, overhead %lu\n", instructions, overhead);
-		printf("Expected %lu\n", expected);
-		printf("Actual   %llu\n", event->result.value);
-		printf("Error    %ld, %f%%\n", difference, percentage);
-		printf("Took %d EBBs\n", ebb_state.stats.ebb_count);
-	}
-
-	if (difference < 0)
-		difference = -difference;
-
-	/* Tolerate a difference of up to 0.0001 % */
-	difference *= 10000 * 100;
-	if (difference / event->result.value)
-		return -1;
-
-	return 0;
-}
-
-/* Count how many instructions it takes to do a null loop */
-static uint64_t determine_overhead(struct event *event)
-{
-	uint64_t current, overhead;
-	int i;
-
-	do_count_loop(event, 0, 0, false);
-	overhead = event->result.value;
-
-	for (i = 0; i < 100; i++) {
-		do_count_loop(event, 0, 0, false);
-		current = event->result.value;
-		if (current < overhead) {
-			printf("Replacing overhead %lu with %lu\n", overhead, current);
-			overhead = current;
-		}
-	}
-
-	return overhead;
-}
-
-static void pmc4_ebb_callee(void)
-{
-	uint64_t val;
-
-	val = mfspr(SPRN_BESCR);
-	if (!(val & BESCR_PMEO)) {
-		ebb_state.stats.spurious++;
-		goto out;
-	}
-
-	ebb_state.stats.ebb_count++;
-	count_pmc(4, sample_period);
-out:
-	if (counters_frozen)
-		reset_ebb_with_clear_mask(MMCR0_PMAO);
-	else
-		reset_ebb();
-}
-
-int instruction_count(void)
-{
-	struct event event;
-	uint64_t overhead;
-
-	event_init_named(&event, 0x400FA, "PM_RUN_INST_CMPL");
-	event_leader_ebb_init(&event);
-	event.attr.exclude_kernel = 1;
-	event.attr.exclude_hv = 1;
-	event.attr.exclude_idle = 1;
-
-	FAIL_IF(event_open(&event));
-	FAIL_IF(ebb_event_enable(&event));
-
-	sample_period = COUNTER_OVERFLOW;
-
-	setup_ebb_handler(pmc4_ebb_callee);
-	mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~MMCR0_FC);
-	ebb_global_enable();
-
-	overhead = determine_overhead(&event);
-	printf("Overhead of null loop: %lu instructions\n", overhead);
-
-	/* Run for 1M instructions */
-	FAIL_IF(do_count_loop(&event, 0x100000, overhead, true));
-
-	/* Run for 10M instructions */
-	FAIL_IF(do_count_loop(&event, 0xa00000, overhead, true));
-
-	/* Run for 100M instructions */
-	FAIL_IF(do_count_loop(&event, 0x6400000, overhead, true));
-
-	/* Run for 1G instructions */
-	FAIL_IF(do_count_loop(&event, 0x40000000, overhead, true));
-
-	/* Run for 16G instructions */
-	FAIL_IF(do_count_loop(&event, 0x400000000, overhead, true));
-
-	/* Run for 64G instructions */
-	FAIL_IF(do_count_loop(&event, 0x1000000000, overhead, true));
-
-	/* Run for 128G instructions */
-	FAIL_IF(do_count_loop(&event, 0x2000000000, overhead, true));
-
-	ebb_global_disable();
-	event_close(&event);
-
-	printf("Finished OK\n");
-
-	return 0;
-}
-
-int main(void)
-{
-	return test_harness(instruction_count, "instruction_count");
-}