diff options
| author | Muralidhara M K <muralidhara.mk@amd.com> | 2024-01-28 09:59:50 -0600 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-01-29 10:22:41 +0100 |
| commit | 453f0ae797328e675840466c80e5b268d7feb9ba (patch) | |
| tree | 4cf5c7f7f23d7252ecf12d7d3932f970733201f9 /drivers/ras/amd/atl/system.c | |
| parent | 1289c431641f8beacc47db506210154dcea2492a (diff) | |
RAS/AMD/ATL: Add MI300 support
AMD MI300 systems include on-die HBM3 memory and a unique topology. And
they fall under Data Fabric version 4.5 in overall design.
Generally, topology information (IDs, etc.) is gathered from Data Fabric
registers. However, the unique topology for MI300 means that some
topology information is fixed in hardware and follows arbitrary
mappings. Furthermore, not all hardware instances are software-visible,
so register accesses must be adjusted.
Recognize and add helper functions for the new MI300 interleave modes.
Add lookup tables for fixed values where appropriate. Adjust how Die and
Node IDs are found and used.
Also, fix some register bitmasks that were mislabeled.
Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com>
Co-developed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240128155950.1434067-1-yazen.ghannam@amd.com
Diffstat (limited to 'drivers/ras/amd/atl/system.c')
| -rw-r--r-- | drivers/ras/amd/atl/system.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ras/amd/atl/system.c b/drivers/ras/amd/atl/system.c index af61f2f1d6de..46493ed405d6 100644 --- a/drivers/ras/amd/atl/system.c +++ b/drivers/ras/amd/atl/system.c @@ -124,6 +124,9 @@ static int df4_determine_df_rev(u32 reg) if (reg == DF_FUNC0_ID_ZEN4_SERVER) df_cfg.flags.socket_id_shift_quirk = 1; + if (reg == DF_FUNC0_ID_MI300) + df_cfg.flags.heterogeneous = 1; + return df4_get_fabric_id_mask_registers(); } |