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Commit 9da197f1 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Greg Kroah-Hartman
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hv_uio_generic: map ringbuffer phys addr 



The ring buffer is contiguous IOVA and is mapped via phys addr
for sysfs file. Use same method for the UIO mapping.

Signed-off-by: default avatarStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent bfddabfa

drivers/uio/uio_hv_generic.c

+2 −2
Original line number Diff line number Diff line
@@ -224,10 +224,10 @@ hv_uio_probe(struct hv_device *dev, 
	/* mem resources */

	pdata->info.mem[TXRX_RING_MAP].name = "txrx_rings";

	pdata->info.mem[TXRX_RING_MAP].addr

		= (uintptr_t)page_address(dev->channel->ringbuffer_page);

		= (uintptr_t)virt_to_phys(page_address(dev->channel->ringbuffer_page));

	pdata->info.mem[TXRX_RING_MAP].size

		= dev->channel->ringbuffer_pagecount << PAGE_SHIFT;

	pdata->info.mem[TXRX_RING_MAP].memtype = UIO_MEM_LOGICAL;

	pdata->info.mem[TXRX_RING_MAP].memtype = UIO_MEM_IOVA;



	pdata->info.mem[INT_PAGE_MAP].name = "int_page";

	pdata->info.mem[INT_PAGE_MAP].addr