Merge tag 'x86_cpu_for_v6.9_rc1' of git://git.kernel.org/pub/scm/linu…

…x/kernel/git/tip/tip

Pull x86 cpu update from Borislav Petkov:

 - Have AMD Zen common init code run on all families from Zen1 onwards
   in order to save some future enablement effort

* tag 'x86_cpu_for_v6.9_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/CPU/AMD: Do the common init on future Zens too

arch/x86/kernel/cpu/amd.c

@@ -828,7 +828,6 @@ static void init_amd_zen_common(void)
 
 static void init_amd_zen1(struct cpuinfo_x86 *c)
 {
-	init_amd_zen_common();
 	fix_erratum_1386(c);
 
 	/* Fix up CPUID bits, but only if not virtualised. */
@@ -882,16 +881,13 @@ static void zen2_zenbleed_check(struct cpuinfo_x86 *c)
 
 static void init_amd_zen2(struct cpuinfo_x86 *c)
 {
-	init_amd_zen_common();
 	init_spectral_chicken(c);
 	fix_erratum_1386(c);
 	zen2_zenbleed_check(c);
 }
 
 static void init_amd_zen3(struct cpuinfo_x86 *c)
 {
-	init_amd_zen_common();
-
 	if (!cpu_has(c, X86_FEATURE_HYPERVISOR)) {
 		/*
 		 * Zen3 (Fam19 model < 0x10) parts are not susceptible to
@@ -905,15 +901,12 @@ static void init_amd_zen3(struct cpuinfo_x86 *c)
 
 static void init_amd_zen4(struct cpuinfo_x86 *c)
 {
-	init_amd_zen_common();
-
 	if (!cpu_has(c, X86_FEATURE_HYPERVISOR))
 		msr_set_bit(MSR_ZEN4_BP_CFG, MSR_ZEN4_BP_CFG_SHARED_BTB_FIX_BIT);
 }
 
 static void init_amd_zen5(struct cpuinfo_x86 *c)
 {
-	init_amd_zen_common();
 }
 
 static void init_amd(struct cpuinfo_x86 *c)
@@ -950,6 +943,13 @@ static void init_amd(struct cpuinfo_x86 *c)
 	case 0x16: init_amd_jg(c); break;
 	}
 
+	/*
+	 * Save up on some future enablement work and do common Zen
+	 * settings.
+	 */
+	if (c->x86 >= 0x17)
+		init_amd_zen_common();
+
 	if (boot_cpu_has(X86_FEATURE_ZEN1))
 		init_amd_zen1(c);
 	else if (boot_cpu_has(X86_FEATURE_ZEN2))