patch-2.1.97 linux/arch/ppc/kernel/align.c

• Lines: 38
• Date: Tue Apr 14 17:33:57 1998
• Orig file: v2.1.96/linux/arch/ppc/kernel/align.c
• Orig date: Thu Jul 31 13:09:17 1997

diff -u --recursive --new-file v2.1.96/linux/arch/ppc/kernel/align.c linux/arch/ppc/kernel/align.c
@@ -194,9 +194,13 @@
 			return -EFAULT;	/* bad address */
 	}
 
+#ifdef __SMP__
+	if ((flags & F) && (regs->msr & MSR_FP) )
+		smp_giveup_fpu(current);
+#else	
 	if ((flags & F) && last_task_used_math == current)
 		giveup_fpu();
-
+#endif
 	if (flags & M)
 		return 0;		/* too hard for now */
 
@@ -255,12 +259,22 @@
 	 * the kernel with -msoft-float so it doesn't use the
 	 * fp regs for copying 8-byte objects. */
 	case LD+F+S:
+#ifdef __SMP__
+		if (regs->msr & MSR_FP )
+			smp_giveup_fpu(current);
+#else	
 		giveup_fpu();
+#endif		
 		cvt_fd(&data.f, &current->tss.fpr[reg]);
 		/* current->tss.fpr[reg] = data.f; */
 		break;
 	case ST+F+S:
+#ifdef __SMP__
+		if (regs->msr & MSR_FP )
+			smp_giveup_fpu(current);
+#else	
 		giveup_fpu();
+#endif		
 		cvt_df(&current->tss.fpr[reg], &data.f);
 		/* data.f = current->tss.fpr[reg]; */
 		break;