| # 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. |
