select isn't recursive, so we can't turn on DRM_TTM + DRM_TTM_HELPER in config DRM_VRAM_HELPER, we have to select them on the vram users instead. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20190904054740.20817-8-kraxel@redhat.com
		
			
				
	
	
		
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| # SPDX-License-Identifier: GPL-2.0
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| config DRM_VBOXVIDEO
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| 	tristate "Virtual Box Graphics Card"
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| 	depends on DRM && X86 && PCI
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| 	select DRM_KMS_HELPER
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| 	select DRM_VRAM_HELPER
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| 	select DRM_TTM
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| 	select DRM_TTM_HELPER
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| 	select GENERIC_ALLOCATOR
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| 	help
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| 	  This is a KMS driver for the virtual Graphics Card used in
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| 	  Virtual Box virtual machines.
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| 
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| 	  Although it is possible to build this driver built-in to the
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| 	  kernel, it is advised to build it as a module, so that it can
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| 	  be updated independently of the kernel. Select M to build this
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| 	  driver as a module and add support for these devices via drm/kms
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| 	  interfaces.
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