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, 11 insertions, 13 deletions

diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c
index a2680d8e744b..95966ba9c5ca 100644
--- a/drivers/edac/i5000_edac.c
+++ b/drivers/edac/i5000_edac.c
@@ -1268,25 +1268,23 @@ static int i5000_init_csrows(struct mem_ctl_info *mci)
                 p_csrow->last_page = 9 + csrow * 20;
                 p_csrow->page_mask = 0xFFF;
 
-                p_csrow->grain = 8;
-
                 csrow_megs = 0;
                 for (channel = 0; channel < pvt->maxch; channel++) {
                         csrow_megs += pvt->dimm_info[csrow][channel].megabytes;
-                }
+                        p_csrow->channels[channel].dimm->grain = 8;
 
-                p_csrow->nr_pages = csrow_megs << 8;
+                        /* Assume DDR2 for now */
+                        p_csrow->channels[channel].dimm->mtype = MEM_FB_DDR2;
 
-                /* Assume DDR2 for now */
-                p_csrow->mtype = MEM_FB_DDR2;
+                        /* ask what device type on this row */
+                        if (MTR_DRAM_WIDTH(mtr))
+                                p_csrow->channels[channel].dimm->dtype = DEV_X8;
+                        else
+                                p_csrow->channels[channel].dimm->dtype = DEV_X4;
 
-                /* ask what device type on this row */
-                if (MTR_DRAM_WIDTH(mtr))
-                        p_csrow->dtype = DEV_X8;
-                else
-                        p_csrow->dtype = DEV_X4;
-
-                p_csrow->edac_mode = EDAC_S8ECD8ED;
+                        p_csrow->channels[channel].dimm->edac_mode = EDAC_S8ECD8ED;
+                }
+                p_csrow->nr_pages = csrow_megs << 8;
 
                 empty = 0;
         }