Module Name: src
Committed By: pgoyette
Date: Tue Dec 8 02:09:23 UTC 2015
Modified Files:
src/sys/dev/ic: spdmem.c
Log Message:
Update calculations for DDR4 devices. This gets 1066MHz modules to
report as PC4-17000.
XXX Due to insufficient precision in the SPD ROM data, we still report
XXX these modules with a DDR speed of 2132MHz, not 2133. :( (The
XXX cycle time is really 937.5ps, but is stored in the ROM as 938.0ps)
To generate a diff of this commit:
cvs rdiff -u -r1.18 -r1.19 src/sys/dev/ic/spdmem.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/ic/spdmem.c
diff -u src/sys/dev/ic/spdmem.c:1.18 src/sys/dev/ic/spdmem.c:1.19
--- src/sys/dev/ic/spdmem.c:1.18 Mon Dec 7 14:13:05 2015
+++ src/sys/dev/ic/spdmem.c Tue Dec 8 02:09:23 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: spdmem.c,v 1.18 2015/12/07 14:13:05 msaitoh Exp $ */
+/* $NetBSD: spdmem.c,v 1.19 2015/12/08 02:09:23 pgoyette Exp $ */
/*
* Copyright (c) 2007 Nicolas Joly
@@ -35,7 +35,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: spdmem.c,v 1.18 2015/12/07 14:13:05 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: spdmem.c,v 1.19 2015/12/08 02:09:23 pgoyette Exp $");
#include <sys/param.h>
#include <sys/device.h>
@@ -875,7 +875,7 @@ decode_ddr4(const struct sysctlnode *nod
dimm_size = (1 << dimm_size) *
(s->sm_ddr4.ddr4_package_ranks + 1); /* log.ranks/DIMM */
if (s->sm_ddr4.ddr4_signal_loading == 2) {
- dimm_size *= s->sm_ddr4.ddr4_diecount;
+ dimm_size *= (s->sm_ddr4.ddr4_diecount + 1);
}
}
@@ -892,7 +892,7 @@ decode_ddr4(const struct sysctlnode *nod
cycle_time % 1000, 1000000 / cycle_time);
decode_size_speed(self, node, dimm_size, cycle_time, 2,
- 1 << (s->sm_ddr4.ddr4_device_width + 3),
+ 1 << (s->sm_ddr4.ddr4_primary_bus_width + 3),
TRUE, "PC4", 0);
aprint_verbose_dev(self,
