While there does not seem to be a particularly strong reason to have a size limit for udmabufs in the first place, raising the limit moderatly to 256MB is enough to avoid hitting the limit in increasingly common use-cases - notably allocating video buffers for 8K resolutions.
Signed-off-by: Robert Mader <[email protected]> --- drivers/dma-buf/Kconfig | 4 ++-- drivers/dma-buf/udmabuf.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig index 35f0779cdc80..0e7f5dc978e2 100644 --- a/drivers/dma-buf/Kconfig +++ b/drivers/dma-buf/Kconfig @@ -42,9 +42,9 @@ config UDMABUF config UDMABUF_SIZE_LIMIT_MBYTES int "Size limit in Mega Bytes" - default 64 + default 256 help - Maximum size of a udmabuf, in megabytes. Default is 64. + Maximum size of a udmabuf, in megabytes. Default is 256. config DMABUF_DEBUG bool "DMA-BUF debug checks" diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c index a83153326362..c7649a04b865 100644 --- a/drivers/dma-buf/udmabuf.c +++ b/drivers/dma-buf/udmabuf.c @@ -23,10 +23,10 @@ MODULE_PARM_DESC(list_limit, "udmabuf_create_list->count limit. Default is 1024. #ifdef CONFIG_UDMABUF_SIZE_LIMIT_MBYTES static int size_limit_mb = CONFIG_UDMABUF_SIZE_LIMIT_MBYTES; #else -static int size_limit_mb = 64; +static int size_limit_mb = 256; #endif module_param(size_limit_mb, int, 0644); -MODULE_PARM_DESC(size_limit_mb, "Max size of a dmabuf, in megabytes. Default is 64."); +MODULE_PARM_DESC(size_limit_mb, "Max size of a dmabuf, in megabytes. Default is 256."); struct udmabuf { pgoff_t pagecount; -- 2.55.0
