Changeset 342616d in mainline

Timestamp:

2005-09-05T11:27:12Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ff4c4f5

Parents:

8fe379b5

Message:

More logical fpu_context_engaged setting.
The sse1 test now correctly tests for thread migration settings.

Files:

• arch/amd64/src/fpu_context.c (modified) (1 diff)
• arch/amd64/src/interrupt.c (modified) (1 diff)
• test/fpu/sse1/test.c (modified) (3 diffs)

arch/amd64/src/fpu_context.c

@@ -40 +40 @@
         if(THREAD==CPU->fpu_owner) 
                 reset_TS_flag();
-        else {
+        else
                 set_TS_flag(); 
-                if (CPU->fpu_owner != NULL)
-                        CPU->fpu_owner->fpu_context_engaged=1;
-        }
 }
 

arch/amd64/src/interrupt.c

@@ -135 +135 @@
         }
         CPU->fpu_owner=THREAD;
+        THREAD->fpu_context_engaged = 1;
 }
 

test/fpu/sse1/test.c

@@ -45 +45 @@
 static waitq_t can_start;
 
-static void testit(void *data)
+static void testit1(void *data)
 {
         int i;
@@ -75 +75 @@
 }
 
+static void testit2(void *data)
+{
+        int i;
+        volatile long long j;
+        double e,d,le,f;
+        int arg __attribute__((aligned(16))) = (int)((__native) data);
+        int after_arg __attribute__((aligned(16)));
+        
+        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(void)
@@ -86 +116 @@
         printf("Creating %d threads... ", THREADS);
 
-        for (i=0; i<THREADS; i++) {  
-                if (!(t = thread_create(testit, (void *)((__native)i), TASK, 0)))
+        for (i=0; i<THREADS/2; i++) {  
+                if (!(t = thread_create(testit1, (void *)((__native)i*2), TASK, 0)))
+                        panic("could not create thread\n");
+                thread_ready(t);
+                if (!(t = thread_create(testit2, (void *)((__native)i*2+1), TASK, 0)))
                         panic("could not create thread\n");
                 thread_ready(t);
         }
+
         printf("ok\n");