edac: move dimm properties to struct dimm_info

On systems based on chip select rows, all channels need to use memories
with the same properties, otherwise the memories on channels A and B
won't be recognized.

However, such assumption is not true for all types of memory
controllers.

Controllers for FB-DIMM's don't have such requirements.

Also, modern Intel controllers seem to be capable of handling such
differences.

So, we need to get rid of storing the DIMM information into a per-csrow
data, storing it, instead at the right place.

The first step is to move grain, mtype, dtype and edac_mode to the
per-dimm struct.

Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Reviewed-by: Borislav Petkov <borislav.petkov@amd.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Jason Uhlenkott <juhlenko@akamai.com>
Cc: Tim Small <tim@buttersideup.com>
Cc: Ranganathan Desikan <ravi@jetztechnologies.com>
Cc: "Arvind R." <arvino55@gmail.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Egor Martovetsky <egor@pasemi.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Joe Perches <joe@perches.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Hitoshi Mitake <h.mitake@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: James Bottomley <James.Bottomley@parallels.com>
Cc: "Niklas Söderlund" <niklas.soderlund@ericsson.com>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: Mike Williams <mike@mikebwilliams.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 9 insertions, 8 deletions

diff --git a/drivers/edac/x38_edac.c b/drivers/edac/x38_edac.c
index a438297389e5..f7cc4d214949 100644
--- a/drivers/edac/x38_edac.c
+++ b/drivers/edac/x38_edac.c
@@ -317,7 +317,7 @@ static unsigned long drb_to_nr_pages(
 static int x38_probe1(struct pci_dev *pdev, int dev_idx)
 {
         int rc;
-        int i;
+        int i, j;
         struct mem_ctl_info *mci = NULL;
         unsigned long last_page;
         u16 drbs[X38_CHANNELS][X38_RANKS_PER_CHANNEL];
@@ -372,20 +372,21 @@ static int x38_probe1(struct pci_dev *pdev, int dev_idx)
                         i / X38_RANKS_PER_CHANNEL,
                         i % X38_RANKS_PER_CHANNEL);
 
-                if (nr_pages == 0) {
-                        csrow->mtype = MEM_EMPTY;
+                if (nr_pages == 0)
                         continue;
-                }
 
                 csrow->first_page = last_page + 1;
                 last_page += nr_pages;
                 csrow->last_page = last_page;
                 csrow->nr_pages = nr_pages;
 
-                csrow->grain = nr_pages << PAGE_SHIFT;
-                csrow->mtype = MEM_DDR2;
-                csrow->dtype = DEV_UNKNOWN;
-                csrow->edac_mode = EDAC_UNKNOWN;
+                for (j = 0; j < x38_channel_num; j++) {
+                        struct dimm_info *dimm = csrow->channels[j].dimm;
+                        dimm->grain = nr_pages << PAGE_SHIFT;
+                        dimm->mtype = MEM_DDR2;
+                        dimm->dtype = DEV_UNKNOWN;
+                        dimm->edac_mode = EDAC_UNKNOWN;
+                }
         }
 
         x38_clear_error_info(mci);