diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0773-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0773-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0773-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch b/target/linux/bcm27xx/patches-4.19/950-0773-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch new file mode 100644 index 0000000000..313aa8c3ae --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0773-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch @@ -0,0 +1,25 @@ +From 75e50217c8c8d9ab8dc84547fd149d9bfe32ae5d Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Fri, 22 Nov 2019 16:23:32 +0000 +Subject: [PATCH] drm/v3d: Set dma_mask as well as coherent_dma_mask + +Both coherent_dma_mask and dma_mask act as constraints on allocations +and bounce buffer usage, so be sure to set dma_mask to the appropriate +value otherwise the effective mask could be incorrect. + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + drivers/gpu/drm/v3d/v3d_drv.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/gpu/drm/v3d/v3d_drv.c ++++ b/drivers/gpu/drm/v3d/v3d_drv.c +@@ -261,7 +261,7 @@ static int v3d_platform_drm_probe(struct + int ret; + u32 ident1; + +- dev->coherent_dma_mask = DMA_BIT_MASK(36); ++ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(36)); + + v3d = kzalloc(sizeof(*v3d), GFP_KERNEL); + if (!v3d) |