x86/oprofile/nmi_int: add Nehalem to list of ppro cores

..otherwise oprofile will fall back on that poor timer interrupt. Also replace the unreadable chain of if-statements with a "switch()" statement instead. It generates better code, and is a lot clearer. Signed-off-by: Linus Torvalds <[email protected]>
mna · Jul 25, 2008 · 4b9f12a · 4b9f12a
1 parent b30f3ae
commit 4b9f12a
Showing 1 changed file with 25 additions and 11 deletions.
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
@@ -369,20 +369,34 @@ static int __init ppro_init(char **cpu_type)
 {
 	__u8 cpu_model = boot_cpu_data.x86_model;
 
-	if (cpu_model == 14)
+	switch (cpu_model) {
+	case 0 ... 2:
+		*cpu_type = "i386/ppro";
+		break;
+	case 3 ... 5:
+		*cpu_type = "i386/pii";
+		break;
+	case 6 ... 8:
+		*cpu_type = "i386/piii";
+		break;
+	case 9:
+		*cpu_type = "i386/p6_mobile";
+		break;
+	case 10 ... 13:
+		*cpu_type = "i386/p6";
+		break;
+	case 14:
 		*cpu_type = "i386/core";
-	else if (cpu_model == 15 || cpu_model == 23)
+		break;
+	case 15: case 23:
+		*cpu_type = "i386/core_2";
+		break;
+	case 26:
 		*cpu_type = "i386/core_2";
-	else if (cpu_model > 0xd)
+		break;
+	default:
+		/* Unknown */
 		return 0;
-	else if (cpu_model == 9) {
-		*cpu_type = "i386/p6_mobile";
-	} else if (cpu_model > 5) {
-		*cpu_type = "i386/piii";
-	} else if (cpu_model > 2) {
-		*cpu_type = "i386/pii";
-	} else {
-		*cpu_type = "i386/ppro";
 	}
 
 	model = &op_ppro_spec;