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i5000: Fix the memory size calculation with 2R memories 

When 2R memories are found, the memory size should be multiplied
by two, otherwise, it will report half of the memory size:

       +-----------------------------------------------+
       |                      mc0                      |
       |        branch0        |        branch1        |
       | channel0  | channel1  | channel0  | channel1  |
-------+-----------------------------------------------+
slot3: |     0 MB  |     0 MB  |     0 MB  |     0 MB  |
slot2: |     0 MB  |     0 MB  |     0 MB  |     0 MB  |
-------+-----------------------------------------------+
slot1: |     0 MB  |     0 MB  |     0 MB  |     0 MB  |
slot0: |  1024 MB  |  1024 MB  |  1024 MB  |  1024 MB  |
-------+-----------------------------------------------+

(the above machine have 4 x 2GB 2R memories)

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2012-09-10 13:25:50 -03:00
parent 582a899622
commit b70f833377
1 changed files with 4 additions and 0 deletions
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4
drivers/edac/i5000_edac.c
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@ -1012,6 +1012,10 @@ static void handle_channel(struct i5000_pvt *pvt, int slot, int channel,
/* add the number of COLUMN bits */
addrBits += MTR_DIMM_COLS_ADDR_BITS(mtr);
/* Dual-rank memories have twice the size */
if (dinfo->dual_rank)
addrBits++;
addrBits += 6; /* add 64 bits per DIMM */
addrBits -= 20; /* divide by 2^^20 */
addrBits -= 3; /* 8 bits per bytes */