diff options
Diffstat (limited to 'drivers/edac/amd64_edac.c')
| -rw-r--r-- | drivers/edac/amd64_edac.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 23251bba8eb6..18ba9c898389 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -790,9 +790,11 @@ static void debug_dump_dramcfg_low(struct amd64_pvt *pvt, u32 dclr, int chan) #define CS_EVEN_PRIMARY BIT(0) #define CS_ODD_PRIMARY BIT(1) +#define CS_EVEN_SECONDARY BIT(2) +#define CS_ODD_SECONDARY BIT(3) -#define CS_EVEN CS_EVEN_PRIMARY -#define CS_ODD CS_ODD_PRIMARY +#define CS_EVEN (CS_EVEN_PRIMARY | CS_EVEN_SECONDARY) +#define CS_ODD (CS_ODD_PRIMARY | CS_ODD_SECONDARY) static int f17_get_cs_mode(int dimm, u8 ctrl, struct amd64_pvt *pvt) { @@ -804,6 +806,10 @@ static int f17_get_cs_mode(int dimm, u8 ctrl, struct amd64_pvt *pvt) if (csrow_enabled(2 * dimm + 1, ctrl, pvt)) cs_mode |= CS_ODD_PRIMARY; + /* Asymmetric dual-rank DIMM support. */ + if (csrow_sec_enabled(2 * dimm + 1, ctrl, pvt)) + cs_mode |= CS_ODD_SECONDARY; + return cs_mode; } @@ -1600,7 +1606,11 @@ static int f17_addr_mask_to_cs_size(struct amd64_pvt *pvt, u8 umc, */ dimm = csrow_nr >> 1; - addr_mask_orig = pvt->csels[umc].csmasks[dimm]; + /* Asymmetric dual-rank DIMM support. */ + if ((csrow_nr & 1) && (cs_mode & CS_ODD_SECONDARY)) + addr_mask_orig = pvt->csels[umc].csmasks_sec[dimm]; + else + addr_mask_orig = pvt->csels[umc].csmasks[dimm]; /* * The number of zero bits in the mask is equal to the number of bits |