Messages in this thread Patch in this message | | | Date | Thu, 20 Oct 2011 19:52:31 -0200 | From | "Mauro Carvalho Chehab" <> | Subject | [PATCH 3/4] EDAC: Fix incorrect edac mode reporting in sb_edac |
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From: Mark A. Grondona <mgrondona@llnl.gov>
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>
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index 8118f12..7a402bf 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;
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