v8 Changes: - Remove callbacks and use a shared header instead (patch 4) (Dan) - Add CONFIG_CXL_EINJ as part of header rework (patch 1) (Dan) - Add wrapper __init function for EINJ module (Dan) - Move einj_types debugfs file to be directly under debug/cxl (Dan) - Move dport directories to be directly under debug/cxl (remove portX directories) (Dan) v7 Changes: - Fixed a bug a permissions bug with einj_inject file (was using 0x200 instead of 0200) - Fixed a kernel test bot error - Removed a "magic" number in cxl_einj_available_error_type() - Bumped kernel version in debugfs documentation entries - Added Jonathan's Reviewed-by v6 Changes: - Reworked to have CXL error types under /sys/kernel/debug/cxl (Dan) - Removed CXL error types from legacy EINJ interface in favor of new interface - Removed cxl_rcrb_addr file - Added optional patch for CXL error type #defines (patch 2/5) - Changes to documentation updates to match rework - Change base to cxl-fixes branch The new CXL error types will use the Memory Address field in the SET_ERROR_TYPE_WITH_ADDRESS structure in order to target a CXL 1.1 compliant memory-mapped downstream port. The value of the memory address will be in the port's MMIO range, and it will not represent physical (normal or persistent) memory. Add the functionality for injecting CXL 1.1 errors to the EINJ module, but not through the EINJ legacy interface under /sys/kernel/debug/apei/einj. Instead, make the error types available under /sys/kernel/debug/cxl. This allows for validating the MMIO address for a CXL 1.1 error type while also not making the user responsible for finding it. Ben Cheatham (5): cxl, ACPI, APEI, EINJ: Add CXL_EINJ Kconfig option ACPI, APEI, EINJ: Add wrapper __init function ACPI: Add CXL protocol error defines cxl/core, EINJ: Add CXL debugfs files and EINJ functions EINJ, Documentation: Update EINJ kernel doc Documentation/ABI/testing/debugfs-cxl | 23 +++ .../firmware-guide/acpi/apei/einj.rst | 19 ++ drivers/acpi/apei/Kconfig | 1 + drivers/acpi/apei/einj.c | 169 ++++++++++++++++-- drivers/cxl/Kconfig | 12 ++ drivers/cxl/core/port.c | 33 ++++ drivers/cxl/einj.h | 58 ++++++ include/acpi/actbl1.h | 6 + 8 files changed, 310 insertions(+), 11 deletions(-) create mode 100644 drivers/cxl/einj.h -- 2.34.1
