diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2019-12-21 12:33:04 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2019-12-21 12:33:04 +0000 |
| commit | 3a0c705d9da46d8a64799f227c61bc81e7047540 (patch) | |
| tree | 37742da51b2619cb2bc7e58477c7c9bcff435b9c /sys/dev | |
| parent | ddddbc8242b8521b332d736eb6797dd909080833 (diff) | |
Fix DDR4 DIMM size calculation.
ok claudio@
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/spdmem.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/dev/spdmem.c b/sys/dev/spdmem.c index f4699e6e515..56691be5fdf 100644 --- a/sys/dev/spdmem.c +++ b/sys/dev/spdmem.c @@ -1,4 +1,4 @@ -/* $OpenBSD: spdmem.c,v 1.6 2019/12/17 08:01:36 claudio Exp $ */ +/* $OpenBSD: spdmem.c,v 1.7 2019/12/21 12:33:03 kettenis Exp $ */ /* $NetBSD: spdmem.c,v 1.3 2007/09/20 23:09:59 xtraeme Exp $ */ /* @@ -770,8 +770,8 @@ spdmem_ddr4_decode(struct spdmem_softc *sc, struct spdmem *s) SPDMEM_DDR4_PACK_TYPE_DIE_COUNT_MASK; } - dimm_size = datawidth - (chipwidth + 2); - dimm_size = ddr4_chipsize[chipsize] * (1 << dimm_size) * + dimm_size = (datawidth + 3) - (chipwidth + 2); + dimm_size = (ddr4_chipsize[chipsize] / 8) * (1 << dimm_size) * (physbanks + 1) * (diecount + 1); if (dimm_size < 1024) |