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hv_uio_generic: map ringbuffer phys addr
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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: Stephen Hemminger <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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@shemminger @gregkh
shemminger authored and gregkh committed Sep 25, 2018
1 parent bfddabf commit 9da197f
Showing 1 changed file with 2 additions and 2 deletions.
4 changes: 2 additions & 2 deletions drivers/uio/uio_hv_generic.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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
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