selftests/powerpc: Add test of L3 bank handling

noarg:

	$(MAKE) -C ../

PROGS := count_instructions

PROGS := count_instructions l3_bank_test

EXTRA_SOURCES := ../harness.c event.c

SUB_TARGETS = ebb

/*

 * Copyright 2014, Michael Ellerman, IBM Corp.

 * Licensed under GPLv2.

 */

#include <stdio.h>

#include <stdlib.h>

#include "event.h"

#include "utils.h"

#define MALLOC_SIZE     (0x10000 * 10)  /* Ought to be enough .. */

/*

 * Tests that the L3 bank handling is correct. We fixed it in commit e9aaac1.

 */

static int l3_bank_test(void)

{

	struct event event;

	char *p;

	int i;

	p = malloc(MALLOC_SIZE);

	FAIL_IF(!p);

	event_init(&event, 0x84918F);

	FAIL_IF(event_open(&event));

	for (i = 0; i < MALLOC_SIZE; i += 0x10000)

		p[i] = i;

	event_read(&event);

	event_report(&event);

	FAIL_IF(event.result.running == 0);

	FAIL_IF(event.result.enabled == 0);

	event_close(&event);

	free(p);

	return 0;

}

int main(void)

{

	return test_harness(l3_bank_test, "l3_bank_test");

}