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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Sep 2025 21:22:51.3944 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3eacc707-1d5e-46fc-44ed-08ddf49e06e8 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF0002256E.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB8172 Currently, the amd64_edac module only provides UMC normalized and system physical address when a DRAM ECC error occurs. DRAM Address is neither logged nor exported through tracepoint. Modern AMD SOCs provide UEFI PRM module that implements various address translation PRM handlers. These PRM handlers can be leveraged to convert UMC normalized address into DRAM address at runtime on occurrence of a DRAM ECC error. This translated DRAM address can then be logged and exported through tracepoints. This set adds the required support to accomplish the aforementioned. The first patch adds support in the Address Translation Library to invoke the appropriate PRM handler to perform the translation. The second patch leverages the support added in the first patch to log DRAM Address and export it through the RAS tracepoint on occurrence of a DRAM ECC error. Changes in v2: - Modify commit messages per feedback received. - Remove unnecessary variables. - Rename struct dram_addr to atl_dram_addr. - Replace sprintf call in __log_ecc_error() with scnprintf. - Pass the DRAM Address to edac_mc_handle_error() through "other_detail" parameter instead of "msg". Avadhut Naik (2): RAS/AMD/ATL: Translate UMC normalized address to DRAM address using PRM EDAC/amd64: Incorporate DRAM Address in EDAC message drivers/edac/amd64_edac.c | 23 +++++++++++++++++++++- drivers/edac/amd64_edac.h | 1 + drivers/ras/amd/atl/core.c | 3 ++- drivers/ras/amd/atl/internal.h | 9 +++++++++ drivers/ras/amd/atl/prm.c | 36 ++++++++++++++++++++++++++++++---- drivers/ras/amd/atl/umc.c | 9 +++++++++ drivers/ras/ras.c | 18 +++++++++++++++-- include/linux/ras.h | 19 +++++++++++++++++- 8 files changed, 109 insertions(+), 9 deletions(-) base-commit: 501973598d05fdb1d1089fbf3cf40b605b836e16 -- 2.43.0