1# SPDX-License-Identifier: GPL-2.0 2config ION_SYSTEM_HEAP 3 tristate "Ion system heap" 4 depends on ION 5 help 6 Choose this option to enable the Ion system heap. The system heap 7 is backed by pages from the buddy allocator. If in doubt, say Y. 8 9config ION_SYSTEM_CONTIG_HEAP 10 tristate "Ion system contig heap" 11 depends on ION 12 help 13 Choose this option to enable Ion system contig heap. The system contig heap 14 is backed by the pages from buddy allocator that are guaranteed to be physically 15 contiguous. If in doubt, say Y. 16 17config ION_CMA_HEAP 18 tristate "Ion CMA heap support" 19 depends on ION && DMA_CMA 20 help 21 Choose this option to enable CMA heaps with Ion. This heap is backed 22 by the Contiguous Memory Allocator (CMA). If your system has these 23 regions, you should say Y here. 24