0,0 → 1,200 |
/* |
* Copyright (C) 2005 Jakub Vana |
* Copyright (C) 2005 Jakub Jermar |
* 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 <arch.h> |
#include <arch/arch.h> |
|
#ifdef CONFIG_BENCH |
#include <arch/cycle.h> |
#endif |
|
#if (defined(ia32) || defined(amd64) || defined(ia64) || defined(ia32xen)) |
|
#define THREADS 150*2 |
#define ATTEMPTS 100 |
|
#define E_10e8 271828182 |
#define PI_10e8 314159265 |
|
|
#ifdef KERN_ia32_ARCH_H_ |
static inline double sqrt(double x) { double v; __asm__ ("fsqrt\n" : "=t" (v) : "0" (x)); return v; } |
#endif |
|
#ifdef KERN_amd64_ARCH_H_ |
static inline double sqrt(double x) { double v; __asm__ ("fsqrt\n" : "=t" (v) : "0" (x)); return v; } |
#endif |
|
#ifdef KERN_ia64_ARCH_H_ |
static inline long double sqrt(long double a) |
{ |
long double x = 1; |
long double lx = 0; |
|
if(a<0.00000000000000001) return 0; |
|
while(x!=lx) |
{ |
lx=x; |
x=(x+(a/x))/2; |
} |
return x; |
} |
#endif |
|
|
|
static atomic_t threads_ok; |
static waitq_t can_start; |
|
static void e(void *data) |
{ |
int i; |
double e,d,le,f; |
|
thread_detach(THREAD); |
|
waitq_sleep(&can_start); |
|
for (i = 0; i<ATTEMPTS; i++) { |
le=-1; |
e=0; |
f=1; |
|
for(d=1;e!=le;d*=f,f+=1) { |
le=e; |
e=e+1/d; |
} |
|
if((int)(100000000*e)!=E_10e8) |
panic("tid%d: e*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (100000000*e),(unative_t) E_10e8); |
} |
|
printf("tid%d: e*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (100000000*e),(unative_t) E_10e8); |
atomic_inc(&threads_ok); |
} |
|
static void pi(void *data) |
{ |
|
#ifdef KERN_ia64_ARCH_H_ |
#undef PI_10e8 |
#define PI_10e8 3141592 |
#endif |
|
|
int i; |
double lpi, pi; |
double n, ab, ad; |
|
thread_detach(THREAD); |
|
waitq_sleep(&can_start); |
|
|
for (i = 0; i<ATTEMPTS; i++) { |
lpi = -1; |
pi = 0; |
|
for (n=2, ab = sqrt(2); lpi != pi; n *= 2, ab = ad) { |
double sc, cd; |
|
sc = sqrt(1 - (ab*ab/4)); |
cd = 1 - sc; |
ad = sqrt(ab*ab/4 + cd*cd); |
lpi = pi; |
pi = 2 * n * ad; |
} |
|
#ifdef KERN_ia64_ARCH_H_ |
if((int)(1000000*pi)!=PI_10e8) |
panic("tid%d: pi*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (1000000*pi),(unative_t) (PI_10e8/100)); |
#else |
if((int)(100000000*pi)!=PI_10e8) |
panic("tid%d: pi*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (100000000*pi),(unative_t) PI_10e8); |
#endif |
|
} |
|
printf("tid%d: pi*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (100000000*pi),(unative_t) PI_10e8); |
atomic_inc(&threads_ok); |
} |
|
void test_fpu1(void) |
{ |
#ifdef CONFIG_BENCH |
uint64_t t0 = get_cycle(); |
#endif |
thread_t *t; |
int i; |
|
waitq_initialize(&can_start); |
|
printf("FPU test #1\n"); |
printf("Creating %d threads... ", THREADS); |
|
for (i=0; i<THREADS/2; i++) { |
if (!(t = thread_create(e, NULL, TASK, 0, "e"))) |
panic("could not create thread\n"); |
thread_ready(t); |
if (!(t = thread_create(pi, NULL, TASK, 0, "pi"))) |
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_fpu1(void) |
{ |
printf("This test is available only on Intel/AMD platforms."); |
} |
|
#endif |