Hi, On 8/16/19 2:00 PM, Christoph Hellwig wrote:
Merge the various page-coherent.h files into a single one that either provides prototypes or stubs depending on the need for cache maintainance.For extra benefits alo include <xen/page-coherent.h> in the file actually implementing the interfaces provided. Signed-off-by: Christoph Hellwig <h...@lst.de> --- arch/arm/include/asm/xen/page-coherent.h | 2 -- arch/arm/xen/mm.c | 1 + arch/arm64/include/asm/xen/page-coherent.h | 2 -- arch/x86/include/asm/xen/page-coherent.h | 22 ------------------ drivers/xen/swiotlb-xen.c | 4 +--- include/Kbuild | 2 +- include/xen/{arm => }/page-coherent.h | 27 +++++++++++++++++++---
I am not sure I agree with this rename. The implementation of the helpers are very Arm specific as this is assuming Dom0 is 1:1 mapped.
This was necessary due to the lack of IOMMU on Arm platforms back then. But this is now a pain to get rid of it on newer platform... Cheers, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
