diff options
author | Yazen Ghannam <yazen.ghannam@amd.com> | 2022-02-02 17:43:07 +0300 |
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committer | Borislav Petkov <bp@suse.de> | 2022-02-24 00:01:33 +0300 |
commit | 2151c84ece920dc55942495004a823cbecb921e5 (patch) | |
tree | a58cc30a865f495635d2d0e6875e82c7ebf7008d /drivers/edac/amd64_edac.h | |
parent | 75aeaaf23def967853c8d1cfb513a6842dbc232e (diff) | |
download | linux-2151c84ece920dc55942495004a823cbecb921e5.tar.xz |
EDAC/amd64: Add new register offset support and related changes
Introduce a "family flags" bitmask that can be used to indicate any
special behavior needed on a per-family basis.
Add a flag to indicate a system uses the new register offsets introduced
with Family 19h Model 10h.
Use this flag to account for register offset changes, a new bitfield
indicating DDR5 use on a memory controller, and to set the proper number
of chip select masks.
Rework f17_addr_mask_to_cs_size() to properly handle the change in chip
select masks. And update code comments to reflect the updated Chip
Select, DIMM, and Mask relationships.
[uninitialized variable warning]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: William Roche <william.roche@oracle.com>
Link: https://lore.kernel.org/r/20220202144307.2678405-3-yazen.ghannam@amd.com
Diffstat (limited to 'drivers/edac/amd64_edac.h')
-rw-r--r-- | drivers/edac/amd64_edac.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h index 6b8742369f9d..38e5ad95d010 100644 --- a/drivers/edac/amd64_edac.h +++ b/drivers/edac/amd64_edac.h @@ -273,8 +273,11 @@ #define UMCCH_BASE_ADDR_SEC 0x10 #define UMCCH_ADDR_MASK 0x20 #define UMCCH_ADDR_MASK_SEC 0x28 +#define UMCCH_ADDR_MASK_SEC_DDR5 0x30 #define UMCCH_ADDR_CFG 0x30 +#define UMCCH_ADDR_CFG_DDR5 0x40 #define UMCCH_DIMM_CFG 0x80 +#define UMCCH_DIMM_CFG_DDR5 0x90 #define UMCCH_UMC_CFG 0x100 #define UMCCH_SDP_CTRL 0x104 #define UMCCH_ECC_CTRL 0x14C @@ -488,11 +491,22 @@ struct low_ops { unsigned cs_mode, int cs_mask_nr); }; +struct amd64_family_flags { + /* + * Indicates that the system supports the new register offsets, etc. + * first introduced with Family 19h Model 10h. + */ + __u64 zn_regs_v2 : 1, + + __reserved : 63; +}; + struct amd64_family_type { const char *ctl_name; u16 f0_id, f1_id, f2_id, f6_id; /* Maximum number of memory controllers per die/node. */ u8 max_mcs; + struct amd64_family_flags flags; struct low_ops ops; }; |