64 lines
2.2 KiB
Text
64 lines
2.2 KiB
Text
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# SPDX-License-Identifier: GPL-2.0
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config DMABUF_SAMSUNG_HEAPS
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tristate "DMA-BUF Userland Memory Heaps for Samsung"
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select SAMSUNG_SECURE_IOVA
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select DMABUF_CONTAINER
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select DMABUF_HEAPS_PAGE_POOL
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select DMABUF_HEAPS_DEFERRED_FREE
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depends on DMABUF_HEAPS
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help
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Choose this option to enable the DMA-BUF userland memory heaps for samsung.
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This options creates per heap chardevs in /dev/dma_heap/* which allows
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userspace to allocate dma-bufs that can be shared between drivers.
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config DMABUF_HEAPS_SAMSUNG_CHUNK
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bool "DMA-BUF CHUNK Samsung Heap"
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help
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Choose this option to enable dma-buf CHUNK heap. This heap is backed
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by the Contiguous Memory Allocator (CMA) and allocates the buffers that
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are arranged into a list of fixed size chunks taken from CMA.
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config DMABUF_HEAPS_SAMSUNG_CMA
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bool "DMA-BUF CMA Samsung Heap"
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depends on DMABUF_SAMSUNG_HEAPS
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help
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Choose this option to enable dma-buf CMA heap for samsung.
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This heap is backed by the Contiguous Memory Allocator (CMA) and have own
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cma region by dt binding.
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config DMABUF_HEAPS_SAMSUNG_CARVEOUT
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bool "DMA-BUF Carveout Samsung Heap"
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depends on DMABUF_SAMSUNG_HEAPS
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help
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Choose this option to enable dma-buf Carveout heap for samsung.
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This heap has own reserved region by dt binding.
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config DMABUF_HEAPS_SAMSUNG_HPA
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bool "DMA-BUF HPA Samsung Heap"
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depends on DMABUF_HEAPS && HPA
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help
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Choose this option to enable dma-buf HPA heap for samsung.
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This heap is backed by the High-order Pages Allocator (HPA).
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If your system needs HPA for some reason, you should say Y here.
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config DMABUF_HEAPS_SAMSUNG_SYSTEM
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bool "DMA-BUF System Samsung Heap"
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depends on DMABUF_SAMSUNG_HEAPS
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help
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Choose this option to enable dma-buf System heap for samsung.
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config DMABUF_CONTAINER
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tristate "Dma-buf container support"
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depends on DMA_SHARED_BUFFER
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help
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dma-buf container is a dma-buf that can contain multiple different
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dma-buf objects. It is useful when delivering a lot of dma-buf objects
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between processes or user and kernel to reduce communication overhead.
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config RBIN
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bool "DMA-BUF RBIN Samsung Heap"
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depends on DMABUF_SAMSUNG_HEAPS && CLEANCACHE
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default y
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help
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Choose this option to enable dma-buf rbin heap for samsung.
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