This adds helpers for drivers that don't subclass drm_framebuffer and are backed by drm_gem_object(s). drm_fb_cma_helper is converted to use the helpers.
This patchset is part of a process to add a shmem gem library like the cma library. The common parts between the two goes into core or helpers.
I haven't pushed the helpers all the way out to the cma using drivers. This project has fanned out enough already.
Noralf.
Noralf Trønnes (4): drm: Add GEM backed framebuffer library drm/fb-cma-helper: Use drm_gem_framebuffer_helper drm/tinydrm: Use drm_gem_framebuffer_helper drm/fb-cma-helper: Remove drm_framebuffer_funcs helpers
Documentation/gpu/drm-kms-helpers.rst | 9 + drivers/gpu/drm/Makefile | 2 +- drivers/gpu/drm/drm_fb_cma_helper.c | 181 +++---------------- drivers/gpu/drm/drm_gem_framebuffer_helper.c | 252 +++++++++++++++++++++++++++ drivers/gpu/drm/tinydrm/core/tinydrm-core.c | 3 +- drivers/gpu/drm/tinydrm/mipi-dbi.c | 5 +- drivers/gpu/drm/tinydrm/repaper.c | 5 +- include/drm/drm_fb_cma_helper.h | 4 - include/drm/drm_framebuffer.h | 4 + include/drm/drm_gem_framebuffer_helper.h | 35 ++++ 10 files changed, 337 insertions(+), 163 deletions(-) create mode 100644 drivers/gpu/drm/drm_gem_framebuffer_helper.c create mode 100644 include/drm/drm_gem_framebuffer_helper.h