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Thanks Harish. > This series introduces comprehensive error injection testing capabilities > for Intel Xe3P GPUs, leveraging the DRM RAS (Reliability, Availability, > Serviceability) Generic Netlink interface for error reporting and event > notification. > > The patch series focuses on the below key areas: > > 1. DRM RAS Netlink Library > Establishes the foundation by introducing a reusable DRM RAS netlink library that > provides kernel interface abstraction for error management: > > - DRM RAS Generic Netlink interface initialization and socket management > - Error counter querying for per-node error tracking > - Error threshold configuration (get/set operations) > - Event notification subscription via multicast groups > > 2. Uncorrectable Error Verification > Implements GT Uncorrectable Unicast Walker Command Parity Error Injection: > > - MMIO-based error injection mechanism > - AER (Advanced Error Reporting) recovery verification > - Validates Xe driver error handling and recovery flows > - Includes workload execution post-recovery for robustness testing > > 3. Correctable Error Verification > Adds support for L2 Bank Correctable Error Injection with threshold monitoring: > > - Event notification framework for real-time error event monitoring > - Single and multi-iteration correctable error injection tests > - Error threshold validation (critical for detecting error saturation) > > IGT Test Coverage includes: > > - GT Uncorrectable Unicast Walker Command Parity Error > - L2 Bank Correctable Error (single injection) > - L2 Bank Correctable Error with threshold=1 > - L2 Bank Correctable Error (16x injections) > > Ravi Kishore Koppuravuri (10): > drm-uapi/drm_ras: Add DRM RAS UAPI header > lib/meson: Add libnl dependencies for DRM RAS support > lib/igt_drm_netlink: Introduce DRM RAS Netlink interface library > lib/igt_drm_netlink: add get_error_counter support > lib/igt_drm_netlink: add get_error_threshold command support > lib/igt_drm_netlink: add set_error_threshold command support > tests/intel/xe_err_injection: Add GT UC Unicast GAM Walker Command > Parity Error Injection > lib/igt_drm_netlink: add event notify subscription and event wait > support > tests/intel/xe_err_injection: Add tests for L2 bank Corr err threshold > scenarios > tests/intel/xe_err_injection: add CRI GPU requirement check > > include/drm-uapi/drm_ras.h | 67 ++++ > lib/igt_drm_netlink.c | 565 ++++++++++++++++++++++++++++++ > lib/igt_drm_netlink.h | 48 +++ > lib/meson.build | 9 + > tests/intel/xe_err_injection.c | 623 +++++++++++++++++++++++++++++++++ > tests/intel/xe_err_injection.h | 28 ++ > tests/meson.build | 1 + > 7 files changed, 1341 insertions(+) > create mode 100644 include/drm-uapi/drm_ras.h > create mode 100644 lib/igt_drm_netlink.c > create mode 100644 lib/igt_drm_netlink.h > create mode 100644 tests/intel/xe_err_injection.c > create mode 100644 tests/intel/xe_err_injection.h > > -- > 2.34.1 >