| 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. |
