1*a49e7e81SThomas Zimmermann# SPDX-License-Identifier: GPL-2.0-only 2*a49e7e81SThomas Zimmermann 3*a49e7e81SThomas Zimmermannconfig DRM_CLIENT_LIB 4*a49e7e81SThomas Zimmermann tristate 5*a49e7e81SThomas Zimmermann depends on DRM 6*a49e7e81SThomas Zimmermann select DRM_KMS_HELPER if DRM_FBDEV_EMULATION 7*a49e7e81SThomas Zimmermann select FB_CORE if DRM_FBDEV_EMULATION 8*a49e7e81SThomas Zimmermann help 9*a49e7e81SThomas Zimmermann This option enables the DRM client library and selects all 10*a49e7e81SThomas Zimmermann modules and components according to the enabled clients. 11*a49e7e81SThomas Zimmermann 12*a49e7e81SThomas Zimmermannconfig DRM_CLIENT_SELECTION 13*a49e7e81SThomas Zimmermann tristate 14*a49e7e81SThomas Zimmermann depends on DRM 15*a49e7e81SThomas Zimmermann select DRM_CLIENT_LIB if DRM_FBDEV_EMULATION 16*a49e7e81SThomas Zimmermann help 17*a49e7e81SThomas Zimmermann Drivers that support in-kernel DRM clients have to select this 18*a49e7e81SThomas Zimmermann option. 19*a49e7e81SThomas Zimmermann 20*a49e7e81SThomas Zimmermannconfig DRM_CLIENT_SETUP 21*a49e7e81SThomas Zimmermann bool 22*a49e7e81SThomas Zimmermann depends on DRM_CLIENT_SELECTION 23*a49e7e81SThomas Zimmermann help 24*a49e7e81SThomas Zimmermann Enables the DRM client selection. DRM drivers that support the 25*a49e7e81SThomas Zimmermann default clients should select DRM_CLIENT_SELECTION instead. 26*a49e7e81SThomas Zimmermann 27*a49e7e81SThomas Zimmermannmenu "Supported DRM clients" 28*a49e7e81SThomas Zimmermann depends on DRM_CLIENT_SELECTION 29*a49e7e81SThomas Zimmermann 30*a49e7e81SThomas Zimmermannconfig DRM_FBDEV_EMULATION 31*a49e7e81SThomas Zimmermann bool "Enable legacy fbdev support for your modesetting driver" 32*a49e7e81SThomas Zimmermann depends on DRM_CLIENT_SELECTION 33*a49e7e81SThomas Zimmermann select DRM_CLIENT 34*a49e7e81SThomas Zimmermann select DRM_CLIENT_SETUP 35*a49e7e81SThomas Zimmermann select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE 36*a49e7e81SThomas Zimmermann default FB 37*a49e7e81SThomas Zimmermann help 38*a49e7e81SThomas Zimmermann Choose this option if you have a need for the legacy fbdev 39*a49e7e81SThomas Zimmermann support. Note that this support also provides the linux console 40*a49e7e81SThomas Zimmermann support on top of your modesetting driver. 41*a49e7e81SThomas Zimmermann 42*a49e7e81SThomas Zimmermann If in doubt, say "Y". 43*a49e7e81SThomas Zimmermann 44*a49e7e81SThomas Zimmermannconfig DRM_FBDEV_OVERALLOC 45*a49e7e81SThomas Zimmermann int "Overallocation of the fbdev buffer" 46*a49e7e81SThomas Zimmermann depends on DRM_FBDEV_EMULATION 47*a49e7e81SThomas Zimmermann default 100 48*a49e7e81SThomas Zimmermann help 49*a49e7e81SThomas Zimmermann Defines the fbdev buffer overallocation in percent. Default 50*a49e7e81SThomas Zimmermann is 100. Typical values for double buffering will be 200, 51*a49e7e81SThomas Zimmermann triple buffering 300. 52*a49e7e81SThomas Zimmermann 53*a49e7e81SThomas Zimmermannconfig DRM_FBDEV_LEAK_PHYS_SMEM 54*a49e7e81SThomas Zimmermann bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)" 55*a49e7e81SThomas Zimmermann depends on DRM_FBDEV_EMULATION && EXPERT 56*a49e7e81SThomas Zimmermann default n 57*a49e7e81SThomas Zimmermann help 58*a49e7e81SThomas Zimmermann In order to keep user-space compatibility, we want in certain 59*a49e7e81SThomas Zimmermann use-cases to keep leaking the fbdev physical address to the 60*a49e7e81SThomas Zimmermann user-space program handling the fbdev buffer. 61*a49e7e81SThomas Zimmermann This affects, not only, Amlogic, Allwinner or Rockchip devices 62*a49e7e81SThomas Zimmermann with ARM Mali GPUs using a userspace Blob. 63*a49e7e81SThomas Zimmermann This option is not supported by upstream developers and should be 64*a49e7e81SThomas Zimmermann removed as soon as possible and be considered as a broken and 65*a49e7e81SThomas Zimmermann legacy behaviour from a modern fbdev device driver. 66*a49e7e81SThomas Zimmermann 67*a49e7e81SThomas Zimmermann Please send any bug reports when using this to your proprietary 68*a49e7e81SThomas Zimmermann software vendor that requires this. 69*a49e7e81SThomas Zimmermann 70*a49e7e81SThomas Zimmermann If in doubt, say "N" or spread the word to your closed source 71*a49e7e81SThomas Zimmermann library vendor. 72*a49e7e81SThomas Zimmermann 73*a49e7e81SThomas Zimmermannendmenu 74