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authorBorislav Petkov <bp@suse.de>2017-05-25 14:20:28 +0300
committerBorislav Petkov <bp@suse.de>2017-05-25 15:37:34 +0300
commit6696522957a192130dc42d80ea34796ec7ba0c2b (patch)
tree172b36e69b165cb870507ded5edb50a020359999 /drivers/edac
parent199389acd95b8a8858e98244b72ea2970bc482ff (diff)
downloadlinux-6696522957a192130dc42d80ea34796ec7ba0c2b.tar.xz
EDAC, sb_edac: Carve out dimm-populating loop
... to slim down get_dimm_config(). No functionality change. Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/sb_edac.c124
1 files changed, 66 insertions, 58 deletions
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 903ca1f98361..fad5c79741d2 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -1620,66 +1620,17 @@ static void get_source_id(struct mem_ctl_info *mci)
pvt->sbridge_dev->source_id = SOURCE_ID(reg);
}
-static int get_dimm_config(struct mem_ctl_info *mci)
+static void __populate_dimms(struct mem_ctl_info *mci,
+ u64 knl_mc_sizes[KNL_MAX_CHANNELS],
+ enum edac_type mode)
{
struct sbridge_pvt *pvt = mci->pvt_info;
+ int channels = pvt->info.type == KNIGHTS_LANDING ? KNL_MAX_CHANNELS
+ : NUM_CHANNELS;
+ unsigned int i, j, banks, ranks, rows, cols, npages;
struct dimm_info *dimm;
- unsigned i, j, banks, ranks, rows, cols, npages;
- u64 size;
- u32 reg;
- enum edac_type mode;
enum mem_type mtype;
- int channels = pvt->info.type == KNIGHTS_LANDING ?
- KNL_MAX_CHANNELS : NUM_CHANNELS;
- u64 knl_mc_sizes[KNL_MAX_CHANNELS];
-
- if (pvt->info.type == HASWELL || pvt->info.type == BROADWELL) {
- pci_read_config_dword(pvt->pci_ha, HASWELL_HASYSDEFEATURE2, &reg);
- pvt->is_chan_hash = GET_BITFIELD(reg, 21, 21);
- }
- pvt->sbridge_dev->node_id = pvt->info.get_node_id(pvt);
- edac_dbg(0, "mc#%d: Node ID: %d, source ID: %d\n",
- pvt->sbridge_dev->mc,
- pvt->sbridge_dev->node_id,
- pvt->sbridge_dev->source_id);
-
- /* KNL doesn't support mirroring or lockstep,
- * and is always closed page
- */
- if (pvt->info.type == KNIGHTS_LANDING) {
- mode = EDAC_S4ECD4ED;
- pvt->is_mirrored = false;
-
- if (knl_get_dimm_capacity(pvt, knl_mc_sizes) != 0)
- return -1;
- } else {
- pci_read_config_dword(pvt->pci_ras, RASENABLES, &reg);
- if (IS_MIRROR_ENABLED(reg)) {
- edac_dbg(0, "Memory mirror is enabled\n");
- pvt->is_mirrored = true;
- } else {
- edac_dbg(0, "Memory mirror is disabled\n");
- pvt->is_mirrored = false;
- }
-
- pci_read_config_dword(pvt->pci_ta, MCMTR, &pvt->info.mcmtr);
- if (IS_LOCKSTEP_ENABLED(pvt->info.mcmtr)) {
- edac_dbg(0, "Lockstep is enabled\n");
- mode = EDAC_S8ECD8ED;
- pvt->is_lockstep = true;
- } else {
- edac_dbg(0, "Lockstep is disabled\n");
- mode = EDAC_S4ECD4ED;
- pvt->is_lockstep = false;
- }
- if (IS_CLOSE_PG(pvt->info.mcmtr)) {
- edac_dbg(0, "address map is on closed page mode\n");
- pvt->is_close_pg = true;
- } else {
- edac_dbg(0, "address map is on open page mode\n");
- pvt->is_close_pg = false;
- }
- }
+ u64 size;
mtype = pvt->info.get_memory_type(pvt);
if (mtype == MEM_RDDR3 || mtype == MEM_RDDR4)
@@ -1710,8 +1661,7 @@ static int get_dimm_config(struct mem_ctl_info *mci)
}
for (j = 0; j < max_dimms_per_channel; j++) {
- dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers,
- i, j, 0);
+ dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers, i, j, 0);
if (pvt->info.type == KNIGHTS_LANDING) {
pci_read_config_dword(pvt->knl.pci_channel[i],
knl_mtr_reg, &mtr);
@@ -1754,6 +1704,64 @@ static int get_dimm_config(struct mem_ctl_info *mci)
}
}
}
+}
+
+static int get_dimm_config(struct mem_ctl_info *mci)
+{
+ struct sbridge_pvt *pvt = mci->pvt_info;
+ u64 knl_mc_sizes[KNL_MAX_CHANNELS];
+ enum edac_type mode;
+ u32 reg;
+
+ if (pvt->info.type == HASWELL || pvt->info.type == BROADWELL) {
+ pci_read_config_dword(pvt->pci_ha, HASWELL_HASYSDEFEATURE2, &reg);
+ pvt->is_chan_hash = GET_BITFIELD(reg, 21, 21);
+ }
+ pvt->sbridge_dev->node_id = pvt->info.get_node_id(pvt);
+ edac_dbg(0, "mc#%d: Node ID: %d, source ID: %d\n",
+ pvt->sbridge_dev->mc,
+ pvt->sbridge_dev->node_id,
+ pvt->sbridge_dev->source_id);
+
+ /* KNL doesn't support mirroring or lockstep,
+ * and is always closed page
+ */
+ if (pvt->info.type == KNIGHTS_LANDING) {
+ mode = EDAC_S4ECD4ED;
+ pvt->is_mirrored = false;
+
+ if (knl_get_dimm_capacity(pvt, knl_mc_sizes) != 0)
+ return -1;
+ } else {
+ pci_read_config_dword(pvt->pci_ras, RASENABLES, &reg);
+ if (IS_MIRROR_ENABLED(reg)) {
+ edac_dbg(0, "Memory mirror is enabled\n");
+ pvt->is_mirrored = true;
+ } else {
+ edac_dbg(0, "Memory mirror is disabled\n");
+ pvt->is_mirrored = false;
+ }
+
+ pci_read_config_dword(pvt->pci_ta, MCMTR, &pvt->info.mcmtr);
+ if (IS_LOCKSTEP_ENABLED(pvt->info.mcmtr)) {
+ edac_dbg(0, "Lockstep is enabled\n");
+ mode = EDAC_S8ECD8ED;
+ pvt->is_lockstep = true;
+ } else {
+ edac_dbg(0, "Lockstep is disabled\n");
+ mode = EDAC_S4ECD4ED;
+ pvt->is_lockstep = false;
+ }
+ if (IS_CLOSE_PG(pvt->info.mcmtr)) {
+ edac_dbg(0, "address map is on closed page mode\n");
+ pvt->is_close_pg = true;
+ } else {
+ edac_dbg(0, "address map is on open page mode\n");
+ pvt->is_close_pg = false;
+ }
+ }
+
+ __populate_dimms(mci, knl_mc_sizes, mode);
return 0;
}