Staging
v0.8.1
https://github.com/torvalds/linux
Raw File
Tip revision: 48778464bb7d346b47157d21ffde2af6b2d39110 authored by Linus Torvalds on 21 June 2020, 22:45:29 UTC
Linux 5.8-rc2
Tip revision: 4877846
Kconfig
# SPDX-License-Identifier: GPL-2.0
menuconfig ION
	bool "Ion Memory Manager"
	depends on HAS_DMA && MMU
	select GENERIC_ALLOCATOR
	select DMA_SHARED_BUFFER
	help
	  Choose this option to enable the ION Memory Manager,
	  used by Android to efficiently allocate buffers
	  from userspace that can be shared between drivers.
	  If you're not using Android its probably safe to
	  say N here.

config ION_SYSTEM_HEAP
	bool "Ion system heap"
	depends on ION
	help
	  Choose this option to enable the Ion system heap. The system heap
	  is backed by pages from the buddy allocator. If in doubt, say Y.

config ION_CMA_HEAP
	bool "Ion CMA heap support"
	depends on ION && DMA_CMA
	help
	  Choose this option to enable CMA heaps with Ion. This heap is backed
	  by the Contiguous Memory Allocator (CMA). If your system has these
	  regions, you should say Y here.
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