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

This commit is contained in:

Muralidhara M K

2024-01-28 09:59:50 -06:00

committed by

Borislav Petkov (AMD)

parent 1289c43164

commit 453f0ae797

8 changed files with 309 additions and 5 deletions

									
										drivers/ras/amd/atl/system.c
									
		+3
		
												View File
												
				@@ -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();

				}