[PATCH 2/4] sb_edac: virtualize several hard-coded functions

From: Chrzaniuk, Hubert
Date: Mon Nov 30 2015 - 12:23:00 EST

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SAD limit, interleave mode and DRAM related functionalities
are now virtualized, so that overriding them is easier.

Signed-off-by: Jim Snow <jim.m.snow@xxxxxxxxx>
Signed-off-by: Lukasz Anaczkowski <lukasz.anaczkowski@xxxxxxxxx>
---
drivers/edac/sb_edac.c | 59 ++++++++++++++++++++++++++++++++++++++++----------
1 file changed, 48 insertions(+), 11 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 429309c..2e50a3e 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -65,15 +65,12 @@ static const u32 ibridge_dram_rule[] = {
0xd8, 0xe0, 0xe8, 0xf0, 0xf8,
};

-#define SAD_LIMIT(reg) ((GET_BITFIELD(reg, 6, 25) << 26) | 0x3ffffff)
-#define DRAM_ATTR(reg) GET_BITFIELD(reg, 2, 3)
-#define INTERLEAVE_MODE(reg) GET_BITFIELD(reg, 1, 1)
#define DRAM_RULE_ENABLE(reg) GET_BITFIELD(reg, 0, 0)
#define A7MODE(reg) GET_BITFIELD(reg, 26, 26)

-static char *get_dram_attr(u32 reg)
+static char *show_dram_attr(u32 attr)
{
- switch(DRAM_ATTR(reg)) {
+ switch (attr) {
case 0:
return "DRAM";
case 1:
@@ -273,6 +270,10 @@ struct sbridge_info {
u64 (*get_tolm)(struct sbridge_pvt *pvt);
u64 (*get_tohm)(struct sbridge_pvt *pvt);
u64 (*rir_limit)(u32 reg);
+ u64 (*sad_limit)(u32 reg);
+ u32 (*interleave_mode)(u32 reg);
+ char* (*show_interleave_mode)(u32 reg);
+ u32 (*dram_attr)(u32 reg);
const u32 *dram_rule;
const u32 *interleave_list;
const struct interleave_pkg *interleave_pkg;
@@ -718,6 +719,26 @@ static u64 rir_limit(u32 reg)
return ((u64)GET_BITFIELD(reg, 1, 10) << 29) | 0x1fffffff;
}

+static u64 sad_limit(u32 reg)
+{
+ return (GET_BITFIELD(reg, 6, 25) << 26) | 0x3ffffff;
+}
+
+static u32 interleave_mode(u32 reg)
+{
+ return GET_BITFIELD(reg, 1, 1);
+}
+
+char *show_interleave_mode(u32 reg)
+{
+ return interleave_mode(reg) ? "8:6" : "[8:6]XOR[18:16]";
+}
+
+static u32 dram_attr(u32 reg)
+{
+ return GET_BITFIELD(reg, 2, 3);
+}
+
static enum mem_type get_memory_type(struct sbridge_pvt *pvt)
{
u32 reg;
@@ -1069,7 +1090,7 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
/* SAD_LIMIT Address range is 45:26 */
pci_read_config_dword(pvt->pci_sad0, pvt->info.dram_rule[n_sads],
&reg);
- limit = SAD_LIMIT(reg);
+ limit = pvt->info.sad_limit(reg);

if (!DRAM_RULE_ENABLE(reg))
continue;
@@ -1081,10 +1102,10 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
gb = div_u64_rem(tmp_mb, 1024, &mb);
edac_dbg(0, "SAD#%d %s up to %u.%03u GB (0x%016Lx) Interleave: %s reg=0x%08x\n",
n_sads,
- get_dram_attr(reg),
+ show_dram_attr(pvt->info.dram_attr(reg)),
gb, (mb*1000)/1024,
((u64)tmp_mb) << 20L,
- INTERLEAVE_MODE(reg) ? "8:6" : "[8:6]XOR[18:16]",
+ pvt->info.show_interleave_mode(reg),
reg);
prv = limit;

@@ -1248,7 +1269,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
if (!DRAM_RULE_ENABLE(reg))
continue;

- limit = SAD_LIMIT(reg);
+ limit = pvt->info.sad_limit(reg);
if (limit <= prv) {
sprintf(msg, "Can't discover the memory socket");
return -EINVAL;
@@ -1262,8 +1283,8 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
return -EINVAL;
}
dram_rule = reg;
- *area_type = get_dram_attr(dram_rule);
- interleave_mode = INTERLEAVE_MODE(dram_rule);
+ *area_type = show_dram_attr(pvt->info.dram_attr(dram_rule));
+ interleave_mode = pvt->info.interleave_mode(dram_rule);

pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads],
&reg);
@@ -2401,6 +2422,10 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type)
pvt->info.get_memory_type = get_memory_type;
pvt->info.get_node_id = get_node_id;
pvt->info.rir_limit = rir_limit;
+ pvt->info.sad_limit = sad_limit;
+ pvt->info.interleave_mode = interleave_mode;
+ pvt->info.show_interleave_mode = show_interleave_mode;
+ pvt->info.dram_attr = dram_attr;
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);
@@ -2421,6 +2446,10 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type)
pvt->info.get_memory_type = get_memory_type;
pvt->info.get_node_id = get_node_id;
pvt->info.rir_limit = rir_limit;
+ pvt->info.sad_limit = sad_limit;
+ pvt->info.interleave_mode = interleave_mode;
+ pvt->info.show_interleave_mode = show_interleave_mode;
+ pvt->info.dram_attr = dram_attr;
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);
@@ -2441,6 +2470,10 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type)
pvt->info.get_memory_type = haswell_get_memory_type;
pvt->info.get_node_id = haswell_get_node_id;
pvt->info.rir_limit = haswell_rir_limit;
+ pvt->info.sad_limit = sad_limit;
+ pvt->info.interleave_mode = interleave_mode;
+ pvt->info.show_interleave_mode = show_interleave_mode;
+ pvt->info.dram_attr = dram_attr;
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);
@@ -2461,6 +2494,10 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type)
pvt->info.get_memory_type = haswell_get_memory_type;
pvt->info.get_node_id = haswell_get_node_id;
pvt->info.rir_limit = haswell_rir_limit;
+ pvt->info.sad_limit = sad_limit;
+ pvt->info.interleave_mode = interleave_mode;
+ pvt->info.show_interleave_mode = show_interleave_mode;
+ pvt->info.dram_attr = dram_attr;
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);
--
1.8.3.1

--------------------------------------------------------------------

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Next message: Chrzaniuk, Hubert: "[PATCH 3/4] sb_edac: support for duplicate device IDs"
Previous message: Martin K. Petersen: "Re: MPT2SAS boot fail... due to silently loosing the driver"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]