[PATCH 3.12 65/83] sb_edac: Fix erroneous bytes->gigabytes conversion

From: Jiri Slaby
Date: Mon Apr 27 2015 - 17:36:31 EST


From: Jim Snow <jim.m.snow@xxxxxxxxx>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit 8c009100295597f23978c224aec5751a365bc965 upstream.

Signed-off-by: Jim Snow <jim.snow@xxxxxxxxx>
Signed-off-by: Lukasz Anaczkowski <lukasz.anaczkowski@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/edac/sb_edac.c | 38 ++++++++++++++++++++------------------
1 file changed, 20 insertions(+), 18 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index e04462b60756..952a956288e4 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -622,7 +622,7 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
u32 reg;
u64 limit, prv = 0;
u64 tmp_mb;
- u32 mb, kb;
+ u32 gb, mb;
u32 rir_way;

/*
@@ -635,8 +635,9 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
pvt->tolm = GET_TOLM(reg);
tmp_mb = (1 + pvt->tolm) >> 20;

- mb = div_u64_rem(tmp_mb, 1000, &kb);
- edac_dbg(0, "TOLM: %u.%03u GB (0x%016Lx)\n", mb, kb, (u64)pvt->tolm);
+ gb = div_u64_rem(tmp_mb, 1024, &mb);
+ edac_dbg(0, "TOLM: %u.%03u GB (0x%016Lx)\n",
+ gb, (mb*1000)/1024, (u64)pvt->tolm);

/* Address range is already 45:25 */
pci_read_config_dword(pvt->pci_sad1, TOHM,
@@ -644,8 +645,9 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
pvt->tohm = GET_TOHM(reg);
tmp_mb = (1 + pvt->tohm) >> 20;

- mb = div_u64_rem(tmp_mb, 1000, &kb);
- edac_dbg(0, "TOHM: %u.%03u GB (0x%016Lx)\n", mb, kb, (u64)pvt->tohm);
+ gb = div_u64_rem(tmp_mb, 1024, &mb);
+ edac_dbg(0, "TOHM: %u.%03u GB (0x%016Lx)\n",
+ gb, (mb*1000)/1024, (u64)pvt->tohm);

/*
* Step 2) Get SAD range and SAD Interleave list
@@ -667,11 +669,11 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
break;

tmp_mb = (limit + 1) >> 20;
- mb = div_u64_rem(tmp_mb, 1000, &kb);
+ 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),
- mb, kb,
+ gb, (mb*1000)/1024,
((u64)tmp_mb) << 20L,
INTERLEAVE_MODE(reg) ? "8:6" : "[8:6]XOR[18:16]",
reg);
@@ -701,9 +703,9 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
break;
tmp_mb = (limit + 1) >> 20;

- mb = div_u64_rem(tmp_mb, 1000, &kb);
+ gb = div_u64_rem(tmp_mb, 1024, &mb);
edac_dbg(0, "TAD#%d: up to %u.%03u GB (0x%016Lx), socket interleave %d, memory interleave %d, TGT: %d, %d, %d, %d, reg=0x%08x\n",
- n_tads, mb, kb,
+ n_tads, gb, (mb*1000)/1024,
((u64)tmp_mb) << 20L,
(u32)TAD_SOCK(reg),
(u32)TAD_CH(reg),
@@ -726,10 +728,10 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
tad_ch_nilv_offset[j],
&reg);
tmp_mb = TAD_OFFSET(reg) >> 20;
- mb = div_u64_rem(tmp_mb, 1000, &kb);
+ gb = div_u64_rem(tmp_mb, 1024, &mb);
edac_dbg(0, "TAD CH#%d, offset #%d: %u.%03u GB (0x%016Lx), reg=0x%08x\n",
i, j,
- mb, kb,
+ gb, (mb*1000)/1024,
((u64)tmp_mb) << 20L,
reg);
}
@@ -751,10 +753,10 @@ static void get_memory_layout(const struct mem_ctl_info *mci)

tmp_mb = RIR_LIMIT(reg) >> 20;
rir_way = 1 << RIR_WAY(reg);
- mb = div_u64_rem(tmp_mb, 1000, &kb);
+ gb = div_u64_rem(tmp_mb, 1024, &mb);
edac_dbg(0, "CH#%d RIR#%d, limit: %u.%03u GB (0x%016Lx), way: %d, reg=0x%08x\n",
i, j,
- mb, kb,
+ gb, (mb*1000)/1024,
((u64)tmp_mb) << 20L,
rir_way,
reg);
@@ -765,10 +767,10 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
&reg);
tmp_mb = RIR_OFFSET(reg) << 6;

- mb = div_u64_rem(tmp_mb, 1000, &kb);
+ gb = div_u64_rem(tmp_mb, 1024, &mb);
edac_dbg(0, "CH#%d RIR#%d INTL#%d, offset %u.%03u GB (0x%016Lx), tgt: %d, reg=0x%08x\n",
i, j, k,
- mb, kb,
+ gb, (mb*1000)/1024,
((u64)tmp_mb) << 20L,
(u32)RIR_RNK_TGT(reg),
reg);
@@ -805,7 +807,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
u8 ch_way,sck_way;
u32 tad_offset;
u32 rir_way;
- u32 mb, kb;
+ u32 mb, gb;
u64 ch_addr, offset, limit, prv = 0;


@@ -1021,10 +1023,10 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
continue;

limit = RIR_LIMIT(reg);
- mb = div_u64_rem(limit >> 20, 1000, &kb);
+ gb = div_u64_rem(limit >> 20, 1024, &mb);
edac_dbg(0, "RIR#%d, limit: %u.%03u GB (0x%016Lx), way: %d\n",
n_rir,
- mb, kb,
+ gb, (mb*1000)/1024,
limit,
1 << RIR_WAY(reg));
if (ch_addr <= limit)
--
2.3.5

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