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- comment "sunxi-mali-utgard-driver needs a Linux kernel to be built"
- depends on BR2_PACKAGE_SUNXI_MALI_UTGARD
- depends on !BR2_LINUX_KERNEL
- config BR2_PACKAGE_SUNXI_MALI_UTGARD_DRIVER
- bool "sunxi-mali-utgard-driver"
- default y
- depends on BR2_PACKAGE_SUNXI_MALI_UTGARD # runtime
- depends on BR2_LINUX_KERNEL
- select BR2_LINUX_NEEDS_MODULES # not using kernel-module infra
- help
- This package builds and installs the Linux kernel driver for
- the Mali Utgard GPU on Allwinner platforms, compatible with
- recent Linux kernels (>= 4.4). Note that it should be
- installed together with the corresponding userspace OpenGL
- libraries, which are provided as binaries only at:
- https://github.com/bootlin/mali-blobs
- sunxi-mali-utgard-driver requires a Linux kernel >= 4.4
- with the following options enabled:
- - CONFIG_CMA
- - CONFIG_DMA_CMA
- starting from Linux Kernel >= 4.20 following options must be
- enabled:
- - CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM
- The following kernel command line options must be passed:
- - drm_kms_helper.drm_leak_fbdev_smem = 1
- since drm_kms_helper.drm_leak_fbdev_smem is set to 0 by
- default
- - drm_kms_helper.drm_fbdev_overalloc >= 200
- since the driver requires at least double buffering and
- fails to work with the default value(100).
- https://github.com/giuliobenetti/sunxi-mali/blob/master/README.md
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