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>
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);
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 */
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;