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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_TEST
tristate "Ion Test Device"
depends on ION
help
Choose this option to create a device that can be used to test the
kernel and device side ION functions.
config ION_DUMMY
bool "Dummy Ion driver"
depends on ION
help
Provides a dummy ION driver that registers the
/dev/ion device and some basic heaps. This can
be used for testing the ION infrastructure if
one doesn't have access to hardware drivers that
use ION.
config ION_TEGRA
tristate "Ion for Tegra"
depends on ARCH_TEGRA && ION
help
Choose this option if you wish to use ion on an nVidia Tegra.
config ION_HISI
tristate "Ion for Hisilicon"
depends on ARCH_HISI && ION
select ION_OF
help
Choose this option if you wish to use ion on Hisilicon Platform.
source "drivers/staging/android/ion/hisilicon/Kconfig"
config ION_MXC
tristate "Ion for imx platform"
depends on ION
select VIDEOBUF2_DMA_CONTIG
select ION_OF
help
Choose this option if you wish to use ion on imx platform.
config ION_OF
bool "Devicetree support for Ion"
depends on ION && OF_ADDRESS
help
Provides base support for defining Ion heaps in devicetree
and setting them up. Also includes functions for platforms
to parse the devicetree and expand for their own custom
extensions
If using Ion and devicetree, you should say Y here
config ION_UNMAPPED_HEAP
bool "unmapped heap support in ION"
depends on ION && (ARM || ARM64)
default y
help
ION unmapped heap is not available on some architectures.
If unmapped heap is supported, the default configuration enables
it. You should say N here only if you really do not want unmapped
heap support in the ION driver.
config ION_DUMMY_UNMAPPED_HEAP
bool "ION dummy driver define an ION unmapped heap"
depends on ION_DUMMY && ION_UNMAPPED_HEAP
help
Dummy ION driver will create a unmapped heap from physical
location provided through CONFIG_ION_DUMMY_UNMAPPED_BASE and
CONFIG_ION_DUMMY_UNMAPPED_SIZE.
config ION_DUMMY_UNMAPPED_BASE
hex "Physical base address of the ION unmapped heap"
depends on ION_DUMMY_UNMAPPED_HEAP
default 0
help
Allows one the statically define an unmapped heap from the
ION dummy driver to exercice unamped heaps buffer managment.
config ION_DUMMY_UNMAPPED_SIZE
hex "Physical byte size of the ION unmapped heap"
depends on ION_DUMMY_UNMAPPED_HEAP
default 0
help
Allows one the statically define an unmapped heap from the
ION dummy driver to exercice unamped heaps buffer managment.
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