diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/xen/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 15 |
2 files changed, 15 insertions, 1 deletions
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index 23eae5cb69c2..c794ea182140 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -140,7 +140,6 @@ config XEN_GRANT_DEV_ALLOC config SWIOTLB_XEN def_bool y - depends on PCI && X86 select SWIOTLB config XEN_TMEM diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index b72f31c1e018..f0fc1a4f565a 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -42,12 +42,27 @@ #include <xen/page.h> #include <xen/xen-ops.h> #include <xen/hvc-console.h> +#include <asm/dma-mapping.h> /* * Used to do a quick range check in swiotlb_tbl_unmap_single and * swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this * API. */ +#ifndef CONFIG_X86 +static unsigned long dma_alloc_coherent_mask(struct device *dev, + gfp_t gfp) +{ + unsigned long dma_mask = 0; + + dma_mask = dev->coherent_dma_mask; + if (!dma_mask) + dma_mask = (gfp & GFP_DMA) ? DMA_BIT_MASK(24) : DMA_BIT_MASK(32); + + return dma_mask; +} +#endif + static char *xen_io_tlb_start, *xen_io_tlb_end; static unsigned long xen_io_tlb_nslabs; /* |