With the next DRM client coming soon (drm_log) and most of DRM's fbdev emulation consolidated in a few places, it is time to provide a single place for the clients. The base client code and client event handling is now optional. It still remains in the DRM core, which simplifies module dependencies. The new module drm_client_lib.ko stores most of the in-kernel client code. Drivers can opt into client support, but the presence of the client module depends on the user's kernel configuration. Without selected clients, no client module will be build. DRM now forwards suspend and resume events to client helpers instead of calling fbdev emulation directly. This breaks a cyclic dependency among the involved modules. It also allows any client to process suspend and resume events. v4: - improve commit descriptions (Jonathan) v3: - fix more corner Kconfig cases (kernel test robot) v2: - rework of the overall design - keep base client code in DRM core Thomas Zimmermann (12): drm/i915: Select DRM_CLIENT_SELECTION drm/xe: Select DRM_CLIENT_SELECTION drm/fbdev-dma: Select FB_DEFERRED_IO drm/fbdev: Select fbdev I/O helpers from modules that require them drm/fbdev: Store fbdev module parameters in separate file drm/client: Move client event handlers to drm_client_event.c drm/client: Move suspend/resume into DRM client callbacks drm/amdgpu: Suspend and resume internal clients with client helpers drm/nouveau: Suspend and resume clients with client helpers drm/radeon: Suspend and resume clients with client helpers drm/client: Make client support optional drm/client: Add client-lib module Documentation/gpu/drm-client.rst | 3 + drivers/gpu/drm/Kconfig | 41 +++- drivers/gpu/drm/Makefile | 20 +- drivers/gpu/drm/amd/amdgpu/Kconfig | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 22 +- drivers/gpu/drm/drm_client.c | 121 ----------- drivers/gpu/drm/drm_client_event.c | 197 ++++++++++++++++++ drivers/gpu/drm/drm_client_setup.c | 3 + drivers/gpu/drm/drm_debugfs.c | 1 - drivers/gpu/drm/drm_drv.c | 2 +- drivers/gpu/drm/drm_fb_helper.c | 31 --- drivers/gpu/drm/drm_fbdev_client.c | 30 ++- drivers/gpu/drm/drm_file.c | 2 +- drivers/gpu/drm/drm_internal.h | 15 ++ drivers/gpu/drm/drm_kms_helper_common.c | 38 ++++ drivers/gpu/drm/drm_modeset_helper.c | 14 +- drivers/gpu/drm/drm_probe_helper.c | 2 +- drivers/gpu/drm/i915/Kconfig | 1 + .../drm/i915/display/intel_display_driver.c | 2 +- drivers/gpu/drm/nouveau/nouveau_display.c | 8 +- drivers/gpu/drm/nouveau/nouveau_vga.c | 2 +- drivers/gpu/drm/radeon/radeon_device.c | 19 +- drivers/gpu/drm/radeon/radeon_fbdev.c | 6 - drivers/gpu/drm/radeon/radeon_mode.h | 3 - drivers/gpu/drm/xe/Kconfig | 1 + include/drm/drm_client.h | 41 +++- include/drm/drm_client_event.h | 27 +++ 27 files changed, 434 insertions(+), 219 deletions(-) create mode 100644 drivers/gpu/drm/drm_client_event.c create mode 100644 include/drm/drm_client_event.h -- 2.46.0
