After adding fbdev-dma and converting drivers, all users of fbdev-generic require shadow buffering. Make it mandatory and remove all other codepaths. This change greatly simplifies the code for generic fbdev emulation. It will work with any driver that supports GEM's vmap and vunmap. The change further allows for a number of cleanups and fixes. The flag prefer_shadow_fbdev is unused and to be removed. Probing in fbdev-generic is now simple enough to roll back if it fails. Further simplify the code for exporting the framebuffer's physical address. Finally rename the symbols to follow other fbdev emulation. v2: * handle screen_size in separate patches (Javier) Thomas Zimmermann (8): drm/fbdev-generic: Always use shadow buffering drm/fbdev-generic: Remove unused prefer_shadow_fbdev flag drm/fb-helper: Export drm_fb_helper_release_info() drm/fb-helper: Support smem_len in deferred I/O drm/fbdev-generic: Set screen size to size of GEM buffer drm/fbdev-generic: Clean up after failed probing drm/fb-helper: Consolidate CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM drm/fbdev-generic: Rename symbols drivers/gpu/drm/drm_fb_helper.c | 63 ++++--- drivers/gpu/drm/drm_fbdev_dma.c | 9 +- drivers/gpu/drm/drm_fbdev_generic.c | 279 +++++++++------------------- drivers/gpu/drm/tiny/bochs.c | 1 - drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 1 - include/drm/drm_fb_helper.h | 14 +- include/drm/drm_mode_config.h | 7 - 7 files changed, 130 insertions(+), 244 deletions(-) base-commit: 3333280906872bb8c2dff02666c7a8e46f085b24 -- 2.40.0
