The system heap can be easily turned into a module by adding the usual MODULE_* macros, importing the proper namespaces and changing the Kconfig symbol to a tristate.
This heap won't be able to unload though, since we're missing a lot of infrastructure to make it safe.
Reviewed-by: T.J. Mercier tjmercier@google.com Signed-off-by: Maxime Ripard mripard@kernel.org --- drivers/dma-buf/heaps/Kconfig | 2 +- drivers/dma-buf/heaps/system_heap.c | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/dma-buf/heaps/Kconfig b/drivers/dma-buf/heaps/Kconfig index aed0b9b4febf..e273fb18feca 100644 --- a/drivers/dma-buf/heaps/Kconfig +++ b/drivers/dma-buf/heaps/Kconfig @@ -1,7 +1,7 @@ config DMABUF_HEAPS_SYSTEM - bool "DMA-BUF System Heap" + tristate "DMA-BUF System Heap" depends on DMABUF_HEAPS help Choose this option to enable the system dmabuf heap. The system heap is backed by pages from the buddy allocator. If in doubt, say Y.
diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c index 03c2b87cb111..c92bdec356fc 100644 --- a/drivers/dma-buf/heaps/system_heap.c +++ b/drivers/dma-buf/heaps/system_heap.c @@ -535,5 +535,10 @@ static int __init system_heap_create(void) return PTR_ERR(sys_heap);
return 0; } module_init(system_heap_create); + +MODULE_DESCRIPTION("DMA-BUF System Heap"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("DMA_BUF"); +MODULE_IMPORT_NS("DMA_BUF_HEAP");