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https://github.com/thead-yocto-mirror/gpu_bxm_4_64-kernel
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122 lines
5.5 KiB
Makefile
122 lines
5.5 KiB
Makefile
########################################################################### ###
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#@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
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#@License Dual MIT/GPLv2
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#
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# The contents of this file are subject to the MIT license as set out below.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# Alternatively, the contents of this file may be used under the terms of
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# the GNU General Public License Version 2 ("GPL") in which case the provisions
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# of GPL are applicable instead of those above.
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#
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# If you wish to allow use of your version of this file only under the terms of
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# GPL, and not to allow others to use your version of this file under the terms
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# of the MIT license, indicate your decision by deleting the provisions above
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# and replace them with the notice and other provisions required by GPL as set
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# out in the file called "GPL-COPYING" included in this distribution. If you do
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# not delete the provisions above, a recipient may use your version of this file
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# under the terms of either the MIT license or GPL.
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#
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# This License is also included in this distribution in the file called
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# "MIT-COPYING".
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#
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# EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
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# PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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# BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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# PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
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# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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### ###########################################################################
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########################################################################### ###
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# Display class drivers
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########################################################################### ###
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ifeq ($(DISPLAY_CONTROLLER),dc_example)
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$(eval $(call TunableKernelConfigC,DC_EXAMPLE_WIDTH,))
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$(eval $(call TunableKernelConfigC,DC_EXAMPLE_HEIGHT,))
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$(eval $(call TunableKernelConfigC,DC_EXAMPLE_DPI,))
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$(eval $(call TunableKernelConfigC,DC_EXAMPLE_BIT_DEPTH,))
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$(eval $(call TunableKernelConfigC,DC_EXAMPLE_FBC_FORMAT,))
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$(eval $(call TunableKernelConfigC,DC_EXAMPLE_MEMORY_LAYOUT,))
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endif
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ifeq ($(DISPLAY_CONTROLLER),dc_fbdev)
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$(eval $(call TunableKernelConfigC,DC_FBDEV_REFRESH,))
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$(eval $(call TunableKernelConfigC,DC_FBDEV_FORCE_XRGB8888,,\
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Force the dc_fbdev display driver to use XRGB8888. This is necessary_\
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when the underlying Linux framebuffer driver does not ignore alpha_\
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meaning an alpha value of 0 results in nothing being displayed._\
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))
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$(eval $(call TunableBothConfigC,DC_FBDEV_NUM_PREFERRED_BUFFERS,,\
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The maximum number of display buffers the dc_fbdev display driver_\
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supports. The underlying Linux framebuffer driver must be capable_\
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of allocating sufficient memory for the number of buffers chosen._\
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))
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$(eval $(call TunableKernelConfigC,DC_FBDEV_USE_SCREEN_BASE,,\
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Use the framebuffer virtual address found in the framebuffer info_\
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screen base instead of the physical address found in the framebuffer_\
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fix screen info._\
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))
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$(eval $(call TunableKernelConfigC,DC_FBDEV_FORCE_CONTEXT_CLEAN,,\
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Before each framebuffer flip force a context clean by writing out_\
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to memory the contents of the framebuffer display buffers. Certain_\
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Linux framebuffer drivers like udldrmfb for displaylink USB-to-VGA_\
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adapters make use of cached buffers which require userspace support_\
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to write out to memory only those regions that are dirty. So in the_\
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absence of such a userspace support in certain window systems like_\
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NULLWS we force clean the entire display buffers before each flip._\
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))
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endif
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ifeq ($(DISPLAY_CONTROLLER),dc_pdp)
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$(eval $(call TunableKernelConfigC,DCPDP_WIDTH,))
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$(eval $(call TunableKernelConfigC,DCPDP_HEIGHT,))
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$(eval $(call TunableKernelConfigC,DCPDP_DPI,))
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ifneq ($(_CLANG),true)
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$(eval $(call TunableKernelConfigC,DCPDP_DYNAMIC_GTF_TIMING,1))
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endif
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endif
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ifeq ($(DISPLAY_CONTROLLER),dc_pdp2)
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$(eval $(call TunableKernelConfigC,DCPDP_WIDTH,))
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$(eval $(call TunableKernelConfigC,DCPDP_HEIGHT,))
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endif
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ifeq ($(DISPLAY_CONTROLLER),adf_pdp)
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$(eval $(call TunableKernelConfigC,ADF_PDP_WIDTH,))
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$(eval $(call TunableKernelConfigC,ADF_PDP_HEIGHT,))
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endif
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ifeq ($(DISPLAY_CONTROLLER),drm_pdp)
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ifeq ($(SUPPORT_KMS),1)
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ifneq ($(call kernel-version-at-least,4,3),true)
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$(eval $(call TunableKernelConfigC,SUPPORT_DRM_FBDEV_EMULATION,,\
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Enables legacy framebuffer device support in those DRM/KMS drivers \
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that support it when using kernel 4.2 and below. When using later \
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kernels this support must be enabled in the kernel via the \
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CONFIG_DRM_FBDEV_EMULATION option.))
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else ifeq ($(call kernel-version-at-least,4,3),true)
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ifneq ($(filter command line environment,$(origin SUPPORT_DRM_FBDEV_EMULATION)),)
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$(warning CONFIG_DRM_FBDEV_EMULATION must be set as part of the Linux kernel build)
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$(warning SUPPORT_DRM_FBDEV_EMULATION will be ignored)
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endif
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override undefine SUPPORT_DRM_FBDEV_EMULATION
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endif
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endif
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endif
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