The patches add HuC loading support. The driver builds a frame level workload which is stored in the graphics memory. This workload is presented to HuC for processing. The driver, therefore should first determine if the HuC is enabled and also read the huC athentication status bit to determine if HuC was successfully loaded. The GuC is required to authenticate the HuC. The userspace patches that check for a fully loaded HuC firmware and use it can be found at: https://lists.freedesktop.org/archives/libva/2016-September/004554.html https://lists.freedesktop.org/archives/libva/2016-September/004555.html More information regarding the HuC, batch commands that configure the HuC etc can be found at- https://01.org/sites/default/files/documentation/intel-gfx-prm-osrc-skl-vol02a-commandreference-instructions-huc.pdf https://www.x.org/docs/intel/CHV/intel-gfx-prm-osrc-chv-bsw-vol10-hevc.pdf v2: rebased. Changed the code following the review comments. v3: rebased. Organize code. Move contents of intel_huc.h to intel_uc.h. Update function intel_huc_load(),intel_huc_init() and intel_uc_fw_fetch() to accept dev_priv instead of dev. v4: rebased. Remove intel_is_huc_valid() since it is called onoly once. Refactor the code to reduce redundency. Remove fiels like uc_dev which are no longer used. v5: rebased. Beautify the code- remove comments that no longer hold good, add newlines etc. v6: rebased. Remove further redundency. Correct comments. Replace wait_for with intel_wait_for_register() for optimisation purpose.Make fw_type an enum. v7: rebased. Rename intel_huc_loader() to intel_huc(). Move intel_guc_auth_huc() from intel_uc.c to intel_huc.c. Add return values to DRM_ERRORs. Anusha Srivatsa (8): drm/i915/guc: Make the GuC fw loading helper functions general drm/i915/huc: Unified css_header struct for GuC and HuC drm/i915/huc: Add HuC fw loading support drm/i915/huc: Add BXT HuC Loading Support drm/i915/HuC: Add KBL huC loading Support drm/i915/huc: Add debugfs for HuC loading status check drm/i915/huc: Support HuC authentication drm/i915/get_params: Add HuC status to getparams drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/i915_debugfs.c | 43 +++- drivers/gpu/drm/i915/i915_drv.c | 10 + drivers/gpu/drm/i915/i915_drv.h | 2 + drivers/gpu/drm/i915/i915_guc_reg.h | 6 + drivers/gpu/drm/i915/i915_guc_submission.c | 4 +- drivers/gpu/drm/i915/intel_guc_fwif.h | 24 +- drivers/gpu/drm/i915/intel_guc_loader.c | 196 +++++++++-------- drivers/gpu/drm/i915/intel_huc.c | 342 +++++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_uc.h | 60 +++-- include/uapi/drm/i915_drm.h | 1 + 11 files changed, 569 insertions(+), 120 deletions(-) create mode 100644 drivers/gpu/drm/i915/intel_huc.c -- 2.7.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
