This patchset adds generic fbdev emulation for drivers that supports GEM based dumb buffers which support .gem_prime_vmap and gem_prime_mmap. An API is begun to support in-kernel clients in general.
Change this version: Fix a bug in an error path that the kbuild test robot caught.
Change previous version: Rework client removal (again). Drop reference counting, only allow the driver to remove a client.
Noralf.
Changes since version 3: - drm/cma-helper: Use the generic fbdev emulation: Fix error path - Remove setting .lastclose in new tinydrm driver ili9341
Changes since version 2: - Applied first 3 patches to drm-misc-next - Drop client reference counting and only allow the driver to release clients.
Noralf Trønnes (9): drm: Begin an API for in-kernel clients drm/fb-helper: Add generic fbdev emulation .fb_probe function drm/pl111: Set .gem_prime_vmap and .gem_prime_mmap drm/cma-helper: Use the generic fbdev emulation drm/client: Add client callbacks drm/debugfs: Add internal client debugfs file drm/fb-helper: Finish the generic fbdev emulation drm/tinydrm: Use drm_fbdev_generic_setup() drm/cma-helper: Remove drm_fb_cma_fbdev_init_with_funcs()
Documentation/gpu/drm-client.rst | 12 + Documentation/gpu/index.rst | 1 + drivers/gpu/drm/Makefile | 2 +- drivers/gpu/drm/drm_client.c | 405 ++++++++++++++++++++++++++++ drivers/gpu/drm/drm_debugfs.c | 7 + drivers/gpu/drm/drm_drv.c | 8 + drivers/gpu/drm/drm_fb_cma_helper.c | 379 +++----------------------- drivers/gpu/drm/drm_fb_helper.c | 316 +++++++++++++++++++++- drivers/gpu/drm/drm_file.c | 3 + drivers/gpu/drm/drm_probe_helper.c | 3 + drivers/gpu/drm/pl111/pl111_drv.c | 2 + drivers/gpu/drm/tinydrm/core/tinydrm-core.c | 3 +- drivers/gpu/drm/tinydrm/ili9225.c | 1 - drivers/gpu/drm/tinydrm/ili9341.c | 1 - drivers/gpu/drm/tinydrm/mi0283qt.c | 1 - drivers/gpu/drm/tinydrm/st7586.c | 1 - drivers/gpu/drm/tinydrm/st7735r.c | 1 - include/drm/drm_client.h | 152 +++++++++++ include/drm/drm_device.h | 21 ++ include/drm/drm_fb_cma_helper.h | 6 - include/drm/drm_fb_helper.h | 38 +++ 21 files changed, 1010 insertions(+), 353 deletions(-) create mode 100644 Documentation/gpu/drm-client.rst create mode 100644 drivers/gpu/drm/drm_client.c create mode 100644 include/drm/drm_client.h