sb_edac: make RIR limit retrieval per model

Haswell has a different way to retrieve RIR limits, make this procedure per
model.

Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

1 files changed, 10 insertions, 3 deletions

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 3335281982dc..c99c595adc2b 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -233,7 +233,6 @@ static const u32 rir_way_limit[] = {
 
 #define IS_RIR_VALID(reg)       GET_BITFIELD(reg, 31, 31)
 #define RIR_WAY(reg)            GET_BITFIELD(reg, 28, 29)
-#define RIR_LIMIT(reg)          ((GET_BITFIELD(reg,  1, 10) << 29)| 0x1fffffff)
 
 #define MAX_RIR_WAY     8
 
@@ -296,6 +295,7 @@ struct sbridge_info {
         u32             rankcfgr;
         u64             (*get_tolm)(struct sbridge_pvt *pvt);
         u64             (*get_tohm)(struct sbridge_pvt *pvt);
+        u64             (*rir_limit)(u32 reg);
         const u32       *dram_rule;
         const u32       *interleave_list;
         const struct interleave_pkg *interleave_pkg;
@@ -586,6 +586,11 @@ static u64 ibridge_get_tohm(struct sbridge_pvt *pvt)
         return GET_TOHM(reg);
 }
 
+static u64 rir_limit(u32 reg)
+{
+        return ((u64)GET_BITFIELD(reg,  1, 10) << 29) | 0x1fffffff;
+}
+
 static enum mem_type get_memory_type(struct sbridge_pvt *pvt)
 {
         u32 reg;
@@ -902,7 +907,7 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
                         if (!IS_RIR_VALID(reg))
                                 continue;
 
-                        tmp_mb = RIR_LIMIT(reg) >> 20;
+                        tmp_mb = pvt->info.rir_limit(reg) >> 20;
                         rir_way = 1 << RIR_WAY(reg);
                         mb = div_u64_rem(tmp_mb, 1000, &kb);
                         edac_dbg(0, "CH#%d RIR#%d, limit: %u.%03u GB (0x%016Lx), way: %d, reg=0x%08x\n",
@@ -1196,7 +1201,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
                 if (!IS_RIR_VALID(reg))
                         continue;
 
-                limit = RIR_LIMIT(reg);
+                limit = pvt->info.rir_limit(reg);
                 mb = div_u64_rem(limit >> 20, 1000, &kb);
                 edac_dbg(0, "RIR#%d, limit: %u.%03u GB (0x%016Lx), way: %d\n",
                          n_rir,
@@ -1993,6 +1998,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type)
                 pvt->info.dram_rule = ibridge_dram_rule;
                 pvt->info.get_memory_type = get_memory_type;
                 pvt->info.get_node_id = get_node_id;
+                pvt->info.rir_limit = rir_limit;
                 pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule);
                 pvt->info.interleave_list = ibridge_interleave_list;
                 pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list);
@@ -2010,6 +2016,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type)
                 pvt->info.dram_rule = sbridge_dram_rule;
                 pvt->info.get_memory_type = get_memory_type;
                 pvt->info.get_node_id = get_node_id;
+                pvt->info.rir_limit = rir_limit;
                 pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule);
                 pvt->info.interleave_list = sbridge_interleave_list;
                 pvt->info.max_interleave = ARRAY_SIZE(sbridge_interleave_list);