diff options
| author |   Christoph Hellwig <hch@lst.de> | 2022-03-14 07:58:45 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2022-04-18 07:21:13 +0200 |
| commit | 3f70356edf5611c28a68d8d5a9c2b442c9eb81e6 (patch) | |
| tree | 37c2b84bffa935c4c46eacf6a554aba36982fc1f /include/xen/arm | |
| parent | swiotlb: provide swiotlb_init variants that remap the buffer (diff) | |
| download | linux-dev-3f70356edf5611c28a68d8d5a9c2b442c9eb81e6.tar.xz linux-dev-3f70356edf5611c28a68d8d5a9c2b442c9eb81e6.zip | |
swiotlb: merge swiotlb-xen initialization into swiotlb
Reuse the generic swiotlb initialization for xen-swiotlb. For ARM/ARM64
this works trivially, while for x86 xen_swiotlb_fixup needs to be passed
as the remap argument to swiotlb_init_remap/swiotlb_init_late.
Note that the lower bound of the swiotlb size is changed to the smaller
IO_TLB_MIN_SLABS based value with this patch, but that is fine as the
2MB value used in Xen before was just an optimization and is not the
hard lower bound.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'include/xen/arm')
| -rw-r--r-- | include/xen/arm/page.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/xen/arm/page.h b/include/xen/arm/page.h index ac1b65470563..7e199c6656b9 100644 --- a/include/xen/arm/page.h +++ b/include/xen/arm/page.h @@ -115,6 +115,5 @@ static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn) bool xen_arch_need_swiotlb(struct device *dev, phys_addr_t phys, dma_addr_t dev_addr); -unsigned long xen_get_swiotlb_free_pages(unsigned int order); #endif /* _ASM_ARM_XEN_PAGE_H */ |