[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / drivers / staging / android / ion / Kconfig

menuconfig ION
	bool "Ion Memory Manager"
	depends on HAVE_MEMBLOCK && HAS_DMA && MMU
	select GENERIC_ALLOCATOR
	select DMA_SHARED_BUFFER
	---help---
	  Chose 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_CARVEOUT_HEAP
	bool "Ion carveout heap support"
	depends on ION
	help
	  Choose this option to enable carveout heaps with Ion. Carveout heaps
	  are backed by memory reserved from the system. Allocation times are
	  typically faster at the cost of memory not being used. Unless you
	  know your system has these regions, you should say N here.

config ION_CHUNK_HEAP
	bool "Ion chunk heap support"
	depends on ION
	help
          Choose this option to enable chunk heaps with Ion. This heap is
	  similar in function the carveout heap but memory is broken down
	  into smaller chunk sizes, typically corresponding to a TLB size.
	  Unless you know your system has these regions, you should say N here.

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.
Commit	Line	Data
c30707be	1	menuconfig ION
968141d2	2	bool "Ion Memory Manager"
80dd7052	3	depends on HAVE_MEMBLOCK && HAS_DMA && MMU
c30707be	4	select GENERIC_ALLOCATOR
b892bf75	5	select DMA_SHARED_BUFFER
024789ae JS	6	---help---
	7	Chose this option to enable the ION Memory Manager,
	8	used by Android to efficiently allocate buffers
	9	from userspace that can be shared between drivers.
	10	If you're not using Android its probably safe to
	11	say N here.
c30707be	12
2f87f50b LA	13	config ION_SYSTEM_HEAP
	14	bool "Ion system heap"
	15	depends on ION
	16	help
	17	Choose this option to enable the Ion system heap. The system heap
	18	is backed by pages from the buddy allocator. If in doubt, say Y.
	19
	20	config ION_CARVEOUT_HEAP
	21	bool "Ion carveout heap support"
	22	depends on ION
	23	help
	24	Choose this option to enable carveout heaps with Ion. Carveout heaps
	25	are backed by memory reserved from the system. Allocation times are
	26	typically faster at the cost of memory not being used. Unless you
	27	know your system has these regions, you should say N here.
	28
	29	config ION_CHUNK_HEAP
	30	bool "Ion chunk heap support"
	31	depends on ION
	32	help
	33	Choose this option to enable chunk heaps with Ion. This heap is
	34	similar in function the carveout heap but memory is broken down
	35	into smaller chunk sizes, typically corresponding to a TLB size.
	36	Unless you know your system has these regions, you should say N here.
	37
204f6722 LA	38	config ION_CMA_HEAP
204f6722 LA	39	bool "Ion CMA heap support"
54c153a0	40	depends on ION && DMA_CMA
204f6722 LA	41	help
	42	Choose this option to enable CMA heaps with Ion. This heap is backed
	43	by the Contiguous Memory Allocator (CMA). If your system has these
	44	regions, you should say Y here.