diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0179-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0179-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0179-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch b/target/linux/bcm27xx/patches-5.10/950-0179-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch new file mode 100644 index 0000000000..1289309a59 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0179-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch @@ -0,0 +1,27 @@ +From 0a34bafa5816dd1425550968ff7d3de2dc955e6f 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 | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/gpu/drm/v3d/v3d_drv.c ++++ b/drivers/gpu/drm/v3d/v3d_drv.c +@@ -263,8 +263,8 @@ static int v3d_platform_drm_probe(struct + return ret; + + mmu_debug = V3D_READ(V3D_MMU_DEBUG_INFO); +- dev->coherent_dma_mask = +- DMA_BIT_MASK(30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_PA_WIDTH)); ++ dma_set_mask_and_coherent(dev, ++ DMA_BIT_MASK(30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_PA_WIDTH))); + v3d->va_width = 30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_VA_WIDTH); + + ident1 = V3D_READ(V3D_HUB_IDENT1); |