This series adds support to use devcoredump for DPU driver. It introduces the dpu_dbg module which assists in the capturing of register dumps during error scenarios. When a display related error happens, the dpu_dbg module captures all the relevant register dumps along with the snapshot of the drm atomic state and triggers a devcoredump.
changes in v3: - Get rid of registration mechanism for sub-modules and instead get this information from the dpu catalog itself - Get rid of global dpu_dbg struct and instead store it in dpu_kms - delegate the power management of the sub-modules to the resp drivers - refactor and remove the linked list logic and simplify it to have just an array
Abhinav Kumar (3): drm: allow drm_atomic_print_state() to accept any drm_printer drm/msm/dpu: add support to dump dpu registers drm/msm/dpu: add dpu_dbg points across dpu driver
drivers/gpu/drm/drm_atomic.c | 28 ++- drivers/gpu/drm/drm_atomic_uapi.c | 4 +- drivers/gpu/drm/drm_crtc_internal.h | 4 +- drivers/gpu/drm/msm/Makefile | 2 + drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.c | 221 ++++++++++++++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.h | 200 ++++++++++++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_dbg_util.c | 257 +++++++++++++++++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 18 +- .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 14 +- .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 8 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 2 +- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 86 +++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 5 + drivers/gpu/drm/msm/dp/dp_catalog.c | 10 + drivers/gpu/drm/msm/dp/dp_catalog.h | 5 + drivers/gpu/drm/msm/dp/dp_display.c | 37 +++ drivers/gpu/drm/msm/dp/dp_display.h | 1 + drivers/gpu/drm/msm/dsi/dsi.c | 5 + drivers/gpu/drm/msm/dsi/dsi.h | 4 + drivers/gpu/drm/msm/dsi/dsi_host.c | 25 ++ drivers/gpu/drm/msm/msm_drv.c | 29 ++- drivers/gpu/drm/msm/msm_drv.h | 2 + drivers/gpu/drm/selftests/test-drm_framebuffer.c | 1 + 23 files changed, 950 insertions(+), 18 deletions(-) create mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.c create mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.h create mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_dbg_util.c