diff options
| author | Mark A. Grondona <mgrondona@llnl.gov> | 2011-10-18 11:02:58 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-11-01 10:01:55 -0200 |
| commit | c6e13b528f5a6c6a6ae260007d4fd14c3dbc5648 (patch) | |
| tree | 92703334e6ed7b715d55c304735358c41e288d41 /drivers/edac | |
| parent | 3d78c9af78e080db1961fd30ede1720d6e6e5999 (diff) | |
| download | lwn-c6e13b528f5a6c6a6ae260007d4fd14c3dbc5648.tar.gz lwn-c6e13b528f5a6c6a6ae260007d4fd14c3dbc5648.zip | |
EDAC: Fix incorrect edac mode reporting in sb_edac
The edac driver for Sandy Bridge was found to be reporting "FPM"
for edac_mode, which clearly doesn't make sense. It was found that
sb_edac.c:get_dimm_config was reusing a variable for both mem_type
and edac_type, and thus was overwriting the value after setting
it correctly. This patch fixes that issue.
Before the patch:
/sys/devices/system/edac/mc/mc0/csrow0/edac_mode:FPM
/sys/devices/system/edac/mc/mc0/csrow1/edac_mode:FPM
/sys/devices/system/edac/mc/mc0/csrow2/edac_mode:FPM
/sys/devices/system/edac/mc/mc0/csrow3/edac_mode:FPM
After:
/sys/devices/system/edac/mc/mc0/csrow0/edac_mode:S4ECD4ED
/sys/devices/system/edac/mc/mc0/csrow1/edac_mode:S4ECD4ED
/sys/devices/system/edac/mc/mc0/csrow2/edac_mode:S4ECD4ED
/sys/devices/system/edac/mc/mc0/csrow3/edac_mode:S4ECD4ED
Signed-off-by: Mark A. Grondona <mgrondona@llnl.gov>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/sb_edac.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index 8118f12cb8c7..7a402bfbee7d 100644 --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -559,6 +559,7 @@ static int get_dimm_config(const struct mem_ctl_info *mci) unsigned long last_page = 0; u32 reg; enum edac_type mode; + enum mem_type mtype; pci_read_config_dword(pvt->pci_br, SAD_TARGET, ®); pvt->sbridge_dev->source_id = SOURCE_ID(reg); @@ -601,10 +602,10 @@ static int get_dimm_config(const struct mem_ctl_info *mci) if (IS_RDIMM_ENABLED(reg)) { /* FIXME: Can also be LRDIMM */ debugf0("Memory is registered\n"); - mode = MEM_RDDR3; + mtype = MEM_RDDR3; } else { debugf0("Memory is unregistered\n"); - mode = MEM_DDR3; + mtype = MEM_DDR3; } /* On all supported DDR3 DIMM types, there are 8 banks available */ @@ -643,7 +644,7 @@ static int get_dimm_config(const struct mem_ctl_info *mci) csr->dtype = (banks == 8) ? DEV_X8 : DEV_X4; csr->ce_count = 0; csr->ue_count = 0; - csr->mtype = mode; + csr->mtype = mtype; csr->edac_mode = mode; csr->nr_channels = 1; csr->channels[0].chan_idx = i; |