Introducing firmware late binding feature to enable firmware loading for the devices, such as the fan controller and voltage regulator, during the driver probe. Typically, firmware for these devices are part of IFWI flash image but can be replaced at probe after OEM tuning.
v2: - Dropped voltage regulator specific code as binaries for it will not be available for upstreaming as of now. - Address review comments v3: - Dropped fwctl patch for now - Added new patch to extract binary version - Address v2 review comments v4: - Address v3 review comments v5: xe_kmd: - Dropped mutex is worker flush in unbind blocking component removal while fw download is in progress - Handled the fw load in all 3 scenarios (probe, system resume, rpm resume) by holding rpm wake ref in outer bounds of worker. mei: - Most of the review comments v6: - rebased - Disabled fw load upon error v7: xe_kmd: - resolved kernel doc warnings mei: - Address v6 review comments (greg kh) v8: - https://lore.kernel.org/intel-xe/20250710150831.3018674-11-rodrigo.v...@intel.com v9: mei: - The MEI patches underwent internal review, as requested by Greg in v8. xe_kmd: - Rebased, Address review comments Alexander Usyskin (2): mei: bus: add mei_cldev_mtu interface mei: late_bind: add late binding component driver Badal Nilawar (7): drm/xe/xe_late_bind_fw: Introduce xe_late_bind_fw drm/xe/xe_late_bind_fw: Initialize late binding firmware drm/xe/xe_late_bind_fw: Load late binding firmware drm/xe/xe_late_bind_fw: Reload late binding fw in rpm resume drm/xe/xe_late_bind_fw: Reload late binding fw during system resume drm/xe/xe_late_bind_fw: Introduce debug fs node to disable late binding drm/xe/xe_late_bind_fw: Extract and print version info drivers/gpu/drm/xe/Makefile | 1 + drivers/gpu/drm/xe/xe_debugfs.c | 41 ++ drivers/gpu/drm/xe/xe_device.c | 5 + drivers/gpu/drm/xe/xe_device_types.h | 6 + drivers/gpu/drm/xe/xe_late_bind_fw.c | 464 +++++++++++++++++++++ drivers/gpu/drm/xe/xe_late_bind_fw.h | 17 + drivers/gpu/drm/xe/xe_late_bind_fw_types.h | 75 ++++ drivers/gpu/drm/xe/xe_pci.c | 2 + drivers/gpu/drm/xe/xe_pci_types.h | 1 + drivers/gpu/drm/xe/xe_pm.c | 8 + drivers/gpu/drm/xe/xe_uc_fw_abi.h | 66 +++ drivers/misc/mei/Kconfig | 13 + drivers/misc/mei/Makefile | 1 + drivers/misc/mei/bus.c | 13 + drivers/misc/mei/mei_lb.c | 312 ++++++++++++++ include/drm/intel/i915_component.h | 1 + include/drm/intel/intel_lb_mei_interface.h | 70 ++++ include/linux/mei_cl_bus.h | 1 + 18 files changed, 1097 insertions(+) create mode 100644 drivers/gpu/drm/xe/xe_late_bind_fw.c create mode 100644 drivers/gpu/drm/xe/xe_late_bind_fw.h create mode 100644 drivers/gpu/drm/xe/xe_late_bind_fw_types.h create mode 100644 drivers/misc/mei/mei_lb.c create mode 100644 include/drm/intel/intel_lb_mei_interface.h -- 2.34.1
