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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-03-28 19:37:59 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-06-11 13:23:44 -0300 |
| commit | fd63312dfe70b8279618b4d77dc951b6e309ffa2 (patch) | |
| tree | a6a4012398f8977d7059d3dd6e85c120c4fc50fd /drivers/edac/e7xxx_edac.c | |
| parent | 452a6bf955ee1842361742833e40e046287308f4 (diff) | |
| download | op-kernel-dev-fd63312dfe70b8279618b4d77dc951b6e309ffa2.zip op-kernel-dev-fd63312dfe70b8279618b4d77dc951b6e309ffa2.tar.gz | |
edac: Move grain/dtype/edac_type calculus to be out of channel loop
The 3e7bddc changeset (edac: move dimm properties to struct memset_info)
moved the calculus inside a loop. However, at those stuff are common to
all channels, on several drivers, it is better to put the calculus
outside the loop, to optimize the code.
Reported-by: Aristeu Rozanski Filho <arozansk@redhat.com>
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/edac/e7xxx_edac.c')
| -rw-r--r-- | drivers/edac/e7xxx_edac.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/drivers/edac/e7xxx_edac.c b/drivers/edac/e7xxx_edac.c index b111266..bab31aa 100644 --- a/drivers/edac/e7xxx_edac.c +++ b/drivers/edac/e7xxx_edac.c @@ -362,6 +362,7 @@ static void e7xxx_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, int drc_chan, drc_drbg, drc_ddim, mem_dev; struct csrow_info *csrow; struct dimm_info *dimm; + enum edac_type edac_mode; pci_read_config_dword(pdev, E7XXX_DRA, &dra); drc_chan = dual_channel_active(drc, dev_idx); @@ -392,6 +393,21 @@ static void e7xxx_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, nr_pages = cumul_size - last_cumul_size; last_cumul_size = cumul_size; + /* + * if single channel or x8 devices then SECDED + * if dual channel and x4 then S4ECD4ED + */ + if (drc_ddim) { + if (drc_chan && mem_dev) { + edac_mode = EDAC_S4ECD4ED; + mci->edac_cap |= EDAC_FLAG_S4ECD4ED; + } else { + edac_mode = EDAC_SECDED; + mci->edac_cap |= EDAC_FLAG_SECDED; + } + } else + edac_mode = EDAC_NONE; + for (j = 0; j < drc_chan + 1; j++) { dimm = csrow->channels[j].dimm; @@ -399,21 +415,7 @@ static void e7xxx_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, dimm->grain = 1 << 12; /* 4KiB - resolution of CELOG */ dimm->mtype = MEM_RDDR; /* only one type supported */ dimm->dtype = mem_dev ? DEV_X4 : DEV_X8; - - /* - * if single channel or x8 devices then SECDED - * if dual channel and x4 then S4ECD4ED - */ - if (drc_ddim) { - if (drc_chan && mem_dev) { - dimm->edac_mode = EDAC_S4ECD4ED; - mci->edac_cap |= EDAC_FLAG_S4ECD4ED; - } else { - dimm->edac_mode = EDAC_SECDED; - mci->edac_cap |= EDAC_FLAG_SECDED; - } - } else - dimm->edac_mode = EDAC_NONE; + dimm->edac_mode = edac_mode; } } } |
