svn commit: r221509 - head/sys/dev/coretemp

[Xin LI]

Author: delphij
Date: Thu May  5 19:15:15 2011
New Revision: 221509
URL: http://svn.freebsd.org/changeset/base/221509

Log:
  Detect and set Atom's Tj(max) to 90 if it's not the 45nm D400/D500/N400
  series.
  
  MFC after:	2 weeks

Modified:
  head/sys/dev/coretemp/coretemp.c

Modified: head/sys/dev/coretemp/coretemp.c
==============================================================================
--- head/sys/dev/coretemp/coretemp.c	Thu May  5 18:56:48 2011	(r221508)
+++ head/sys/dev/coretemp/coretemp.c	Thu May  5 19:15:15 2011	(r221509)
@@ -197,6 +197,15 @@ coretemp_attach(device_t dev)
 		default:	/* Unknown stepping */
 			break;
 		}
+	} else if (cpu_model == 0x1c) {
+		switch (cpu_stepping) {
+		case 0xa:	/* 45nm Atom D400, N400 and D500 series */
+			sc->sc_tjmax = 100;
+			break;
+		default:
+			sc->sc_tjmax = 90;
+			break;
+		}
 	} else {
 		/*
 		 * Attempt to get Tj(max) from MSR IA32_TEMPERATURE_TARGET.