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Re: [PATCH v1 2/9] MIPS/jazzdma: Provide physical address directly
- To: Leon Romanovsky <leon@xxxxxxxxxx>
- From: Jason Gunthorpe <jgg@xxxxxxxxxx>
- Date: Fri, 3 Oct 2025 11:48:49 -0300
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- Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>, Leon Romanovsky <leonro@xxxxxxxxxx>, Andreas Larsson <andreas@xxxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Geoff Levand <geoff@xxxxxxxxxxxxx>, Helge Deller <deller@xxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, iommu@xxxxxxxxxxxxxxx, "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>, Jason Wang <jasowang@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, linux-alpha@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, linux-parisc@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, Madhavan Srinivasan <maddy@xxxxxxxxxxxxx>, Matt Turner <mattst88@xxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, "Michael S. Tsirkin" <mst@xxxxxxxxxx>, Richard Henderson <richard.henderson@xxxxxxxxxx>, sparclinux@xxxxxxxxxxxxxxx, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Magnus Lindholm <linmag7@xxxxxxxxx>
- Delivery-date: Fri, 03 Oct 2025 14:49:04 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Sun, Sep 28, 2025 at 06:02:22PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@xxxxxxxxxx>
>
> MIPS jazz uses physical addresses for mapping pages, so convert
> it to get them directly from DMA mapping routine.
>
> Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
> ---
> arch/mips/jazz/jazzdma.c | 20 +++++++++++++-------
> 1 file changed, 13 insertions(+), 7 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
> + if (attrs & DMA_ATTR_MMIO)
If this has to be respun I'd put an unlikely() here and the {}
Jason
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