Commit 995d3556 authored by Stefano Stabellini's avatar Stefano Stabellini Committed by Juergen Gross
Browse files

swiotlb-xen: add struct device * parameter to xen_dma_sync_for_device 



No functional changes. The parameter is unused in this patch but will be
used by next patches.

Signed-off-by: default avatarStefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: default avatarCorey Minyard <cminyard@mvista.com>
Tested-by: default avatarRoman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-6-sstabellini@kernel.org


Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
parent 297f7f82

arch/arm/xen/mm.c

+3 −2
Original line number Diff line number Diff line
@@ -81,7 +81,8 @@ void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle, 
		dma_cache_maint(handle, size, GNTTAB_CACHE_INVAL);

}



void xen_dma_sync_for_device(dma_addr_t handle, phys_addr_t paddr, size_t size,

void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle,

			     phys_addr_t paddr, size_t size,

			     enum dma_data_direction dir)

{

	if (pfn_valid(PFN_DOWN(handle)))

drivers/xen/swiotlb-xen.c

+2 −2
Original line number Diff line number Diff line
@@ -408,7 +408,7 @@ static dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page, 


done:

	if (!dev_is_dma_coherent(dev) && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))

		xen_dma_sync_for_device(dev_addr, phys, size, dir);

		xen_dma_sync_for_device(dev, dev_addr, phys, size, dir);

	return dev_addr;

}
@@ -458,7 +458,7 @@ xen_swiotlb_sync_single_for_device(struct device *dev, dma_addr_t dma_addr, 
		swiotlb_tbl_sync_single(dev, paddr, size, dir, SYNC_FOR_DEVICE);



	if (!dev_is_dma_coherent(dev))

		xen_dma_sync_for_device(dma_addr, paddr, size, dir);

		xen_dma_sync_for_device(dev, dma_addr, paddr, size, dir);

}



/*

include/xen/swiotlb-xen.h

+3 −2
Original line number Diff line number Diff line
@@ -7,7 +7,8 @@ 
void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,

			  phys_addr_t paddr, size_t size,

			  enum dma_data_direction dir);

void xen_dma_sync_for_device(dma_addr_t handle, phys_addr_t paddr, size_t size,

void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle,

			     phys_addr_t paddr, size_t size,

			     enum dma_data_direction dir);



extern int xen_swiotlb_init(int verbose, bool early);

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