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/*

 * Copyright (C) 2005 Ondrej Palkovsky

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - Redistributions in binary form must reproduce the above copyright

 *   notice, this list of conditions and the following disclaimer in the

 *   documentation and/or other materials provided with the distribution.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#include <print.h>

#include <debug.h>

#include <panic.h>

#include <test.h>

#include <atomic.h>

#include <proc/thread.h>

#include <time/delay.h>

#include <arch.h>

#ifdef CONFIG_BENCH

#include <arch/cycle.h>

#endif

#if (defined(ia32) || defined(amd64) || defined(ia32xen))

#define THREADS     50

#define DELAY       10000L

#define ATTEMPTS        5

static atomic_t threads_ok;

static waitq_t can_start;

static void testit1(void *data)

{

    int i;

    int arg __attribute__((aligned(16))) = (int)((unative_t) data);

    int after_arg __attribute__((aligned(16)));

    thread_detach(THREAD);

    waitq_sleep(&can_start);

    for (i = 0; i<ATTEMPTS; i++) {

        __asm__ volatile (

            "movlpd %0, %%xmm2"

            :"=m"(arg)

            );

        delay(DELAY);

        __asm__ volatile (

            "movlpd %%xmm2, %0"

            :"=m"(after_arg)

            );

        if(arg != after_arg)

            panic("tid%d: arg(%d) != %d\n",

                  THREAD->tid, arg, after_arg);

    }

    atomic_inc(&threads_ok);

}

static void testit2(void *data)

{

    int i;

    int arg __attribute__((aligned(16))) = (int)((unative_t) data);

    int after_arg __attribute__((aligned(16)));

    thread_detach(THREAD);

    waitq_sleep(&can_start);

    for (i = 0; i<ATTEMPTS; i++) {

        __asm__ volatile (

            "movlpd %0, %%xmm2"

            :"=m"(arg)

            );

        scheduler();

        __asm__ volatile (

            "movlpd %%xmm2, %0"

            :"=m"(after_arg)

            );

        if(arg != after_arg)

            panic("tid%d: arg(%d) != %d\n",

                  THREAD->tid, arg, after_arg);

    }

    atomic_inc(&threads_ok);

}

void test_sse1(void)

{

#ifdef CONFIG_BENCH

    uint64_t t0 = get_cycle();

#endif

    thread_t *t;

    int i;

    waitq_initialize(&can_start);

    printf("SSE test #1\n");

    printf("Creating %d threads... ", THREADS);

    for (i=0; i<THREADS/2; i++) {  

        if (!(t = thread_create(testit1, (void *)((unative_t)i*2), TASK, 0, "testit1")))

            panic("could not create thread\n");

        thread_ready(t);

        if (!(t = thread_create(testit2, (void *)((unative_t)i*2+1), TASK, 0, "testit2")))

            panic("could not create thread\n");

        thread_ready(t);

    }

    printf("ok\n");

    thread_sleep(1);

    waitq_wakeup(&can_start, WAKEUP_ALL);

    while (atomic_get(&threads_ok) != THREADS)

        ;

    printf("Test passed.\n");

#ifdef CONFIG_BENCH

    uint64_t dt = get_cycle() - t0;

    printf("Time: %.*d cycles\n", sizeof(dt) * 2, dt);

#endif

}

#else

void test_sse1(void)

{

    printf("This test is available only on SSE enabled platforms.");

}

#endif