diff --git a/sys/x86/cpufreq/hwpstate_amd.c b/sys/x86/cpufreq/hwpstate_amd.c
--- a/sys/x86/cpufreq/hwpstate_amd.c
+++ b/sys/x86/cpufreq/hwpstate_amd.c
@@ -88,6 +88,13 @@
 #define	AMD_17H_CUR_DID(msr)			(((msr) >> 8) & 0x3F)
 #define	AMD_17H_CUR_FID(msr)			((msr) & 0xFF)
 
+/* for 1Ah, AMD don't have DID */
+#define AMD_1AH_CUR_EN(msr)			((msr >> 63) & 0x01)
+#define	AMD_1AH_CUR_IDIV(msr)			((msr >> 30) & 0x03)
+#define	AMD_1AH_CUR_IDD(msr)			((msr >> 22) & 0xFF)
+#define AMD_1AH_CUR_VID(msr)			((msr >> 14) & 0xFF)
+#define AMD_1AH_CUR_FID(msr)			((msr) & 0xFFF)
+
 #define	HWPSTATE_DEBUG(dev, msg...)			\
 	do {						\
 		if (hwpstate_verbose)			\
@@ -163,6 +170,20 @@
 
 DRIVER_MODULE(hwpstate, cpu, hwpstate_driver, 0, 0);
 
+static void
+hwpstate_amd_div(int *val, int div) {
+	switch (div) {
+		case 3: /* divide by 1000 */
+			*val /= 10;
+		case 2: /* divide by 100 */
+			*val /= 10;
+		case 1: /* divide by 10 */
+			*val /= 10;
+		case 0:	/* divide by 1 */
+			;
+	}
+}
+
 /*
  * Go to Px-state on all cpus, considering the limit register (if so
  * configured).
@@ -478,20 +499,23 @@
 			 * section 2.5.2.1.6.
 			 */
 			hwpstate_set[i].power = AMD_17H_CUR_IDD(msr) * 1000;
-			switch (AMD_17H_CUR_IDIV(msr)) {
-			case 3: /* divide by 1000 */
-				hwpstate_set[i].power /= 10;
-			case 2: /* divide by 100 */
-				hwpstate_set[i].power /= 10;
-			case 1: /* divide by 10 */
-				hwpstate_set[i].power /= 10;
-			case 0:	/* divide by 1 */
-				;
-			}
+			hwpstate_amd_div(&hwpstate_set[i].power, AMD_17H_CUR_IDIV(msr));
 			hwpstate_set[i].power *= hwpstate_set[i].volts;
 			/* Milli amps * milli volts to milli watts. */
 			hwpstate_set[i].power /= 1000;
 			break;
+		case 0x1A:
+			fid = AMD_1AH_CUR_FID(msr);
+			/* amd don't use did in 1Ah */
+			hwpstate_set[i].freq = fid;
+			if (fid > 0x0f)
+				hwpstate_set[i].freq *= 5;
+			hwpstate_set[i].volts =
+			    (155000 - (625 * AMD_1AH_CUR_VID(msr))) / 100;
+			hwpstate_set[i].power = AMD_1AH_CUR_IDD(msr) * 1000;
+			hwpstate_amd_div(&hwpstate_set[i].power, AMD_1AH_CUR_IDIV(msr));
+			hwpstate_set[i].power *= hwpstate_set[i].volts;
+			hwpstate_set[i].power /= 1000;
 		default:
 			HWPSTATE_DEBUG(dev, "get_info_from_msr: %s family"
 			    " 0x%02x CPUs are not supported yet\n",