mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 02:19:51 +00:00
dmaengine: xilinx_dma: Set DMA mask for coherent APIs
The xilinx dma driver uses the consistent allocations, so for correct operation also set the DMA mask for coherent APIs. It fixes the below kernel crash with dmatest client when DMA IP is configured with 64-bit address width and linux is booted from high (>4GB) memory. Call trace: [ 489.531257] dma_alloc_from_pool+0x8c/0x1c0 [ 489.535431] dma_direct_alloc+0x284/0x330 [ 489.539432] dma_alloc_attrs+0x80/0xf0 [ 489.543174] dma_pool_alloc+0x160/0x2c0 [ 489.547003] xilinx_cdma_prep_memcpy+0xa4/0x180 [ 489.551524] dmatest_func+0x3cc/0x114c [ 489.555266] kthread+0x124/0x130 [ 489.558486] ret_from_fork+0x10/0x3c [ 489.562051] ---[ end trace 248625b2d596a90a ]--- Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Reviewed-by: Harini Katakam <harini.katakam@xilinx.com> Link: https://lore.kernel.org/r/1629363528-30347-1-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
parent
5e70a09c54
commit
aac6c0f907
1 changed files with 1 additions and 1 deletions
|
@ -3087,7 +3087,7 @@ static int xilinx_dma_probe(struct platform_device *pdev)
|
|||
xdev->ext_addr = false;
|
||||
|
||||
/* Set the dma mask bits */
|
||||
dma_set_mask(xdev->dev, DMA_BIT_MASK(addr_width));
|
||||
dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width));
|
||||
|
||||
/* Initialize the DMA engine */
|
||||
xdev->common.dev = &pdev->dev;
|
||||
|
|
Loading…
Reference in a new issue