[BUG] ameslab-2.4 missing altivec bits

[Benjamin Herrenschmidt]

Looks like we missed the sys_ppc32.c bits in 2.4:

Whoever takes care of that tree currently, please apply.

Ben.

===== arch/ppc64/kernel/sys_ppc32.c 1.14 vs edited =====
--- 1.14/arch/ppc64/kernel/sys_ppc32.c	Wed Nov 26 03:50:06 2003
+++ edited/arch/ppc64/kernel/sys_ppc32.c	Wed Nov 26 17:30:21 2003
@@ -4000,6 +4000,10 @@
 		goto out;
 	if (regs->msr & MSR_FP)
 		giveup_fpu(current);
+#ifdef CONFIG_ALTIVEC
+        if (regs->msr & MSR_VEC)
+                giveup_altivec(current);
+#endif /* CONFIG_ALTIVEC */

 	error = do_execve32(filename, (u32*) a1, (u32*) a2, regs);

@@ -4023,8 +4027,16 @@
 #ifndef CONFIG_SMP
 	if (last_task_used_math == current)
 		last_task_used_math = 0;
+	if (last_task_used_altivec == current)
+		last_task_used_altivec = 0;
 #endif
+        memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
 	current->thread.fpscr = 0;
+#ifdef CONFIG_ALTIVEC
+        memset(&current->thread.vr[0], 0,offsetof(struct thread_struct,vrsave[2])-
+	       offsetof(struct thread_struct,vr[0]));
+	current->thread.vscr.u[3] = 0x00010000; /* Java mode disabled */
+#endif /* CONFIG_ALTIVEC */
 }

 extern asmlinkage int sys_prctl(int option, unsigned long arg2, unsigned long arg3,


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