Following the current efforts to make CMA heap as module, we can do the same and turn the Coherent heap into a module as well, by changing the Kconfig into a tristate and importing the proper dma-buf namespaces.
This heap won't be able to unload (same as happens with the CMA heap), since we're missing a big part of the infrastructure that would allow to make it safe.
Signed-off-by: Albert Esteve aesteve@redhat.com --- drivers/dma-buf/heaps/Kconfig | 2 +- drivers/dma-buf/heaps/coherent_heap.c | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/dma-buf/heaps/Kconfig b/drivers/dma-buf/heaps/Kconfig index aeb475e585048..2f84a1018b900 100644 --- a/drivers/dma-buf/heaps/Kconfig +++ b/drivers/dma-buf/heaps/Kconfig @@ -14,7 +14,7 @@ config DMABUF_HEAPS_CMA regions, you should say Y here.
config DMABUF_HEAPS_COHERENT - bool "DMA-BUF Coherent Reserved-Memory Heap" + tristate "DMA-BUF Coherent Reserved-Memory Heap" depends on DMABUF_HEAPS && OF_RESERVED_MEM && DMA_DECLARE_COHERENT help Choose this option to enable coherent reserved-memory dma-buf heaps. diff --git a/drivers/dma-buf/heaps/coherent_heap.c b/drivers/dma-buf/heaps/coherent_heap.c index d033d737bb9df..cdf8efa6c1564 100644 --- a/drivers/dma-buf/heaps/coherent_heap.c +++ b/drivers/dma-buf/heaps/coherent_heap.c @@ -424,3 +424,6 @@ static int __init coherent_heap_register(void) } module_init(coherent_heap_register); MODULE_DESCRIPTION("DMA-BUF heap for coherent reserved-memory regions"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("DMA_BUF"); +MODULE_IMPORT_NS("DMA_BUF_HEAP");