target/linux/bcm27xx/patches-4.19/950-0773-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch

   1 From 75e50217c8c8d9ab8dc84547fd149d9bfe32ae5d Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Fri, 22 Nov 2019 16:23:32 +0000
   4 Subject: [PATCH] drm/v3d: Set dma_mask as well as coherent_dma_mask
   5
   6 Both coherent_dma_mask and dma_mask act as constraints on allocations
   7 and bounce buffer usage, so be sure to set dma_mask to the appropriate
   8 value otherwise the effective mask could be incorrect.
   9
  10 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
  11 ---
  12  drivers/gpu/drm/v3d/v3d_drv.c | 2 +-
  13  1 file changed, 1 insertion(+), 1 deletion(-)
  14
  15 --- a/drivers/gpu/drm/v3d/v3d_drv.c
  16 +++ b/drivers/gpu/drm/v3d/v3d_drv.c
  17 @@ -261,7 +261,7 @@ static int v3d_platform_drm_probe(struct
  18         int ret;
  19         u32 ident1;
  20
  21 -       dev->coherent_dma_mask = DMA_BIT_MASK(36);
  22 +       dma_set_mask_and_coherent(dev, DMA_BIT_MASK(36));
  23
  24         v3d = kzalloc(sizeof(*v3d), GFP_KERNEL);
  25         if (!v3d)