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[RFC,34/60] hyper_dmabuf: extend DMA bitmask to 64-bits.

Message ID 1513711816-2618-34-git-send-email-dongwon.kim@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Kim, Dongwon Dec. 19, 2017, 7:29 p.m. UTC 
From: Mateusz Polrola <mateuszx.potrola@intel.com>

Extending DMA bitmask of hyper_dmabuf device to cover whole
address space driver may access.

Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
---
 drivers/xen/hyper_dmabuf/hyper_dmabuf_ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/xen/hyper_dmabuf/hyper_dmabuf_ioctl.c b/drivers/xen/hyper_dmabuf/hyper_dmabuf_ioctl.c
index 476c0d7..f7d98c1 100644
--- a/drivers/xen/hyper_dmabuf/hyper_dmabuf_ioctl.c
+++ b/drivers/xen/hyper_dmabuf/hyper_dmabuf_ioctl.c
@@ -723,7 +723,7 @@  int register_device(void)
 	hyper_dmabuf_private.device = hyper_dmabuf_miscdev.this_device;
 
 	/* TODO: Check if there is a different way to initialize dma mask nicely */
-	dma_coerce_mask_and_coherent(hyper_dmabuf_private.device, 0xFFFFFFFF);
+	dma_coerce_mask_and_coherent(hyper_dmabuf_private.device, DMA_BIT_MASK(64));
 
 	return ret;
 }