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Re: [PATCH v4 3/6] ARM: dma-mapping: Reduce struct page exposure in arch_sync_dma*()
- To: Leon Romanovsky <leon@xxxxxxxxxx>
- From: Jason Gunthorpe <jgg@xxxxxxxxxx>
- Date: Mon, 29 Sep 2025 14:37:55 -0300
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- Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>, Leon Romanovsky <leonro@xxxxxxxxxx>, iommu@xxxxxxxxxxxxxxx, Juergen Gross <jgross@xxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Russell King <linux@xxxxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 29 Sep 2025 17:38:19 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Thu, Sep 18, 2025 at 05:09:26PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@xxxxxxxxxx>
>
> As a preparation to changing from .map_page to use .map_phys DMA
> callbacks, convert arch_sync_dma*() functions to use physical addresses
> instead of struct page.
>
> Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
> ---
> arch/arm/mm/dma-mapping.c | 82 +++++++++++++++------------------------
> 1 file changed, 31 insertions(+), 51 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Jason
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