From b70f833377fc80d7446218b36206e2e299fc6bfd Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 10 Sep 2012 13:25:50 -0300 Subject: [PATCH] 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 --- drivers/edac/i5000_edac.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c index 39c63757c2a1..6a49dd00b81b 100644 --- a/drivers/edac/i5000_edac.c +++ b/drivers/edac/i5000_edac.c @@ -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 */ -- 2.30.2