diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-02-17 12:50:23 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2020-03-20 11:43:21 +0100 |
| commit | 7607cb733fbb6dfac88c4a85c113e8104c91733e (patch) | |
| tree | d141333cdc3db651e770256defb2029e6ab1d02d /arch/arm/mm/dma-mapping.c | |
| parent | fd50924917f98f11554e3bf55b0d062e09bce541 (diff) | |
ARM/dma-mapping: take the bus limit into account in __dma_alloc
The DMA coherent allocator needs to take bus limits into account for
picking the zone that the memory is allocated from.
Reported-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Roger Quadros <rogerq@ti.com>
Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 72ddc3d0f5eb..87aba505554a 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -658,7 +658,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, pgprot_t prot, bool is_coherent, unsigned long attrs, const void *caller) { - u64 mask = dev->coherent_dma_mask; + u64 mask = min_not_zero(dev->coherent_dma_mask, dev->bus_dma_limit); struct page *page = NULL; void *addr; bool allowblock, cma; |