x86/MCE/AMD: Turn off MC4_MISC thresholding on all family 0x15 models

MC4_MISC thresholding is not supported on all family 0x15 processors,
hence skip the x86_model check when applying the quirk.

 [ bp: massage commit message. ]

Signed-off-by: Shirish S <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Vishal Verma <[email protected]>
Cc: x86-ml <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
(cherry picked from commit c95b323)
Orabug: 29547647
Signed-off-by: Somasundaram Krishnasamy <[email protected]>
Reviewed-by: John Donnelly <[email protected]>

Author: Shirish S

arch/x86/kernel/cpu/mce/core.c

@@ -1629,11 +1629,10 @@ static int __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c)
 			mce_flags.overflow_recov = 1;
 
 		/*
-		 * Turn off MC4_MISC thresholding banks on those models since
+		 * Turn off MC4_MISC thresholding banks on all models since
 		 * they're not supported there.
 		 */
-		if (c->x86 == 0x15 &&
-		    (c->x86_model >= 0x10 && c->x86_model <= 0x1f)) {
+		if (c->x86 == 0x15) {
 			int i;
 			u64 hwcr;
 			bool need_toggle;