diff options
Diffstat (limited to 'drivers/media/test-drivers/vimc/vimc-core.c')
| -rw-r--r-- | drivers/media/test-drivers/vimc/vimc-core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/test-drivers/vimc/vimc-core.c b/drivers/media/test-drivers/vimc/vimc-core.c index 4b0ae6f51d76..06edf9d4d92c 100644 --- a/drivers/media/test-drivers/vimc/vimc-core.c +++ b/drivers/media/test-drivers/vimc/vimc-core.c @@ -5,6 +5,7 @@ * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com> */ +#include <linux/dma-mapping.h> #include <linux/font.h> #include <linux/init.h> #include <linux/module.h> @@ -15,6 +16,12 @@ #include "vimc-common.h" +unsigned int vimc_allocator; +module_param_named(allocator, vimc_allocator, uint, 0444); +MODULE_PARM_DESC(allocator, " memory allocator selection, default is 0.\n" + "\t\t 0 == vmalloc\n" + "\t\t 1 == dma-contig"); + #define VIMC_MDEV_MODEL_NAME "VIMC MDEV" #define VIMC_ENT_LINK(src, srcpad, sink, sinkpad, link_flags) { \ @@ -278,6 +285,9 @@ static int vimc_probe(struct platform_device *pdev) tpg_set_font(font->data); + if (vimc_allocator == VIMC_ALLOCATOR_DMA_CONTIG) + dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + vimc = kzalloc(sizeof(*vimc), GFP_KERNEL); if (!vimc) return -ENOMEM; |