Add support for allocating aligned pages at an alignment higher
than 4K. The new function allocated memory taking into account
the padding required and then frees up unused pages before mapping
it.
Signed-off-by: Ashish Singhal <ashishsingha@nvidia.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Update XHCI driver to consume IOMMU_PPI to allocate DMA buffer.
If no IOMMU_PPI exists, this driver still calls PEI service
to allocate DMA buffer, with assumption that DRAM==DMA.
This is a compatible change.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
