WebSVN – HelenOS – Diff – /trunk/kernel/test/fpu/fpu1.c

  * 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.
  */
+#if (defined(ia32) || defined(amd64) || defined(ia64) || defined(ia32xen))
 #include <print.h>
 #include <debug.h>
 #include <panic.h>
 #include <test.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 THREADS     150
 #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; }
+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; }
+static inline double sqrt(double x)
+{
+    double v;
+    asm (
+        "fsqrt\n"
+        : "=t" (v)
+        : "0" (x)
+    );
+    return v;
+}
 #endif
 #ifdef KERN_ia64_ARCH_H_
+#undef PI_10e8
+#define PI_10e8 3141592
 static inline long double sqrt(long double a)
+{
     long double x = 1;
     long double lx = 0;
-    if(a<0.00000000000000001) return 0;
+    if (a < 0.00000000000000001)
+        return 0;
-    while(x!=lx)
+    while(x != lx) {
-    {
-        lx=x;
+        lx = x;
-        x=(x+(a/x))/2;
+        x = (x + (a / x)) / 2;
+    }
     return x;
+}
 #endif
 static atomic_t threads_ok;
+static atomic_t threads_fault;
 static waitq_t can_start;
 static void e(void *data)
+{
     int i;
     thread_detach(THREAD);
     waitq_sleep(&can_start);
     for (i = 0; i<ATTEMPTS; i++) {
-        le=-1;
+        le = -1;
-        e=0;
+        e = 0;
-        f=1;
+        f = 1;
-        for(d=1;e!=le;d*=f,f+=1) {
+        for (d = 1; e != le; d *= f, f += 1) {
-            le=e;
+            le = e;
-            e=e+1/d;
+            e = e + 1 / d;
+        }
-        if((int)(100000000*e)!=E_10e8)
+        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_fault);
+            break;
+        }
+    }
-    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++) {
+    for (i = 0; i < ATTEMPTS; i++) {
         lpi = -1;
         pi = 0;
-        for (n=2, ab = sqrt(2); lpi != pi; n *= 2, ab = ad) {
+        for (n = 2, ab = sqrt(2); lpi != pi; n *= 2, ab = ad) {
             double sc, cd;
-            sc = sqrt(1 - (ab*ab/4));
+            sc = sqrt(1 - (ab * ab / 4));
             cd = 1 - sc;
-            ad = sqrt(ab*ab/4 + cd*cd);
+            ad = sqrt(ab * ab / 4 + cd * cd);
             lpi = pi;
             pi = 2 * n * ad;
+        }
 #ifdef KERN_ia64_ARCH_H_
-        if((int)(1000000*pi)!=PI_10e8)
+        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));
+            printf("tid%d: pi*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (1000000 * pi), (unative_t) (PI_10e8 / 100));
+            atomic_inc(&threads_fault);
+            break;
+        }
 #else
-        if((int)(100000000*pi)!=PI_10e8)
+        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);
+            printf("tid%d: pi*10e8=%zd should be %zd\n", THREAD->tid, (unative_t) (100000000 * pi), (unative_t) PI_10e8);
+            atomic_inc(&threads_fault);
+            break;
+        }
 #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)
+char * test_fpu1(void)
+{
-#ifdef CONFIG_BENCH
-    uint64_t t0 = get_cycle();
+    unsigned int i, total = 0;
-#endif
-    thread_t *t;
-    int i;
     waitq_initialize(&can_start);
+    atomic_set(&threads_ok, 0);
+    atomic_set(&threads_fault, 0);
+    printf("Creating %d threads... ", 2 * THREADS);
-    printf("FPU test #1\n");
+    for (i = 0; i < THREADS; i++) {
-    printf("Creating %d threads... ", THREADS);
+        thread_t *t;
-    for (i=0; i<THREADS/2; i++) {
-        if (!(t = thread_create(e, NULL, TASK, 0, "e")))
+        if (!(t = thread_create(e, NULL, TASK, 0, "e"))) {
-            panic("could not create thread\n");
+            printf("could not create thread %d\n", 2 * i);
+            break;
+        }
         thread_ready(t);
+        total++;
-        if (!(t = thread_create(pi, NULL, TASK, 0, "pi")))
+        if (!(t = thread_create(pi, NULL, TASK, 0, "pi"))) {
-            panic("could not create thread\n");
+            printf("could not create thread %d\n", 2 * i + 1);
+            break;
+        }
         thread_ready(t);
+        total++;
+    }
     printf("ok\n");
     thread_sleep(1);
     waitq_wakeup(&can_start, WAKEUP_ALL);
-    while (atomic_get(&threads_ok) != THREADS)
+    while (atomic_get(&threads_ok) != total) {
-        ;
-    printf("Test passed.\n");
-#ifdef CONFIG_BENCH
-    uint64_t dt = get_cycle() - t0;
-    printf("Time: %.*d cycles\n", sizeof(dt) * 2, dt);
+        printf("Threads left: %d\n", total - atomic_get(&threads_ok));
-#endif
+        thread_sleep(1);
-}
+    }
-#else
+    if (atomic_get(&threads_fault) == 0)
-void test_fpu1(void)
+        return NULL;
-{
-    printf("This test is available only on Intel/AMD platforms.");
+    return "Test failed";
+}
 #endif

Subversion Repositories HelenOS

(root)/trunk/kernel/test/fpu/fpu1.c – Rev 2020 → 2027