linux-kernel - [patch] x86, bts: DS and BTS initialization

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Date:	Sun, 09 Nov 2008 14:29:21 +0100
From:	Markus Metzger <markus.t.metzger@...glemail.com>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: [patch] x86, bts: DS and BTS initialization

Move BTS initialisation out of an #ifdef CONFIG_X86_64 guard.

Assume core2 BTS and DS layout for future models of family 6 processors.

Signed-off-by: Markus Metzger <markus.t.metzger@...el.com>
---

Index: gits/arch/x86/kernel/ds.c
===================================================================
--- gits.orig/arch/x86/kernel/ds.c	2008-11-09 10:55:13.000000000 -0100
+++ gits/arch/x86/kernel/ds.c	2008-11-09 12:40:56.000000000 -0100
@@ -821,17 +821,16 @@
 	switch (c->x86) {
 	case 0x6:
 		switch (c->x86_model) {
+		case 0 ... 0xC:
+			/* sorry, don't know about them */
+			break;
 		case 0xD:
 		case 0xE: /* Pentium M */
 			ds_configure(&ds_cfg_var);
 			break;
-		case 0xF: /* Core2 */
-		case 0x1C: /* Atom */
+		default: /* Core2, Atom, ... */
 			ds_configure(&ds_cfg_64);
 			break;
-		default:
-			/* sorry, don't know about them */
-			break;
 		}
 		break;
 	case 0xF:
Index: gits/arch/x86/kernel/ptrace.c
===================================================================
--- gits.orig/arch/x86/kernel/ptrace.c	2008-11-09 10:55:15.000000000
-0100
+++ gits/arch/x86/kernel/ptrace.c	2008-11-09 12:40:57.000000000 -0100
@@ -929,17 +929,16 @@
 	switch (c->x86) {
 	case 0x6:
 		switch (c->x86_model) {
+		case 0 ... 0xC:
+			/* sorry, don't know about them */
+			break;
 		case 0xD:
 		case 0xE: /* Pentium M */
 			bts_configure(&bts_cfg_pentium_m);
 			break;
-		case 0xF: /* Core2 */
-        case 0x1C: /* Atom */
+		default: /* Core2, Atom, ... */
 			bts_configure(&bts_cfg_core2);
 			break;
-		default:
-			/* sorry, don't know about them */
-			break;
 		}
 		break;
 	case 0xF:
Index: gits/arch/x86/kernel/cpu/intel.c
===================================================================
--- gits.orig/arch/x86/kernel/cpu/intel.c	2008-11-09 10:54:04.000000000
-0100
+++ gits/arch/x86/kernel/cpu/intel.c	2008-11-09 12:41:59.000000000 -0100
@@ -307,12 +307,11 @@
 		set_cpu_cap(c, X86_FEATURE_P4);
 	if (c->x86 == 6)
 		set_cpu_cap(c, X86_FEATURE_P3);
+#endif
 
 	if (cpu_has_bts)
 		ptrace_bts_init_intel(c);
 
-#endif
-
 	detect_extended_topology(c);
 	if (!cpu_has(c, X86_FEATURE_XTOPOLOGY)) {
 		/*


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