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authorQiuxu Zhuo <qiuxu.zhuo@intel.com>2023-02-11 09:17:28 +0800
committerTony Luck <tony.luck@intel.com>2023-03-13 10:42:00 -0700
commit71b1e3ba3fed5a34c5fac6d3a15c2634b04c1eb7 (patch)
tree40e38dab7bd6fed879217a9d5598a42bc28abad4 /drivers/edac
parenteeac8ede17557680855031c6f305ece2378af326 (diff)
EDAC/skx: Fix overflows on the DRAM row address mapping arrays
The current DRAM row address mapping arrays skx_{open,close}_row[] only support ranks with sizes up to 16G. Decoding a rank address to a DRAM row address for a 32G rank by using either one of the above arrays by the skx_edac driver, will result in an overflow on the array. For a 32G rank, the most significant DRAM row address bit (the bit17) is mapped from the bit34 of the rank address. Add this new mapping item to both arrays to fix the overflow issue. Fixes: 4ec656bdf43a ("EDAC, skx_edac: Add EDAC driver for Skylake") Reported-by: Feng Xu <feng.f.xu@intel.com> Tested-by: Feng Xu <feng.f.xu@intel.com> Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Link: https://lore.kernel.org/all/20230211011728.71764-1-qiuxu.zhuo@intel.com
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/skx_base.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/edac/skx_base.c b/drivers/edac/skx_base.c
index 9397abb42c49..0a862336a7ce 100644
--- a/drivers/edac/skx_base.c
+++ b/drivers/edac/skx_base.c
@@ -510,7 +510,7 @@ rir_found:
}
static u8 skx_close_row[] = {
- 15, 16, 17, 18, 20, 21, 22, 28, 10, 11, 12, 13, 29, 30, 31, 32, 33
+ 15, 16, 17, 18, 20, 21, 22, 28, 10, 11, 12, 13, 29, 30, 31, 32, 33, 34
};
static u8 skx_close_column[] = {
@@ -518,7 +518,7 @@ static u8 skx_close_column[] = {
};
static u8 skx_open_row[] = {
- 14, 15, 16, 20, 28, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33
+ 14, 15, 16, 20, 28, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 34
};
static u8 skx_open_column[] = {