[PATCH v1 4/9] powerpc: Convert to physical address DMA mapping
Jason Gunthorpe
jgg at nvidia.com
Sat Oct 4 02:35:05 AEST 2025
On Sun, Sep 28, 2025 at 06:02:24PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro at nvidia.com>
>
> Adapt PowerPC DMA to use physical addresses in order to prepare code
> to removal .map_page and .unmap_page.
>
> Signed-off-by: Leon Romanovsky <leonro at nvidia.com>
> ---
> arch/powerpc/include/asm/iommu.h | 8 +++---
> arch/powerpc/kernel/dma-iommu.c | 22 +++++++---------
> arch/powerpc/kernel/iommu.c | 14 +++++-----
> arch/powerpc/platforms/ps3/system-bus.c | 33 ++++++++++++++----------
> arch/powerpc/platforms/pseries/ibmebus.c | 15 ++++++-----
> arch/powerpc/platforms/pseries/vio.c | 21 ++++++++-------
> 6 files changed, 60 insertions(+), 53 deletions(-)
I think this is good enough for PPC anything more looks quite hard
Reviewed-by: Jason Gunthorpe <jgg at nvidia.com>
Jason
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