iommu/amd: Move aperture_range.offset to another cache-line



Moving it before the pte_pages array puts in into the same
cache-line as the spin-lock and the bitmap array pointer.
This should safe a cache-miss.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent a0f51447

drivers/iommu/amd_iommu.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -124,6 +124,7 @@ struct aperture_range {

		/* address allocation bitmap */
		unsigned long *bitmap;
		unsigned long offset;

		/*
		* Array of PTE pages for the aperture. In this array we save all the
		@@ -132,8 +133,6 @@ struct aperture_range {
		* just calculate its address in constant time.
		*/
		u64 *pte_pages[64];

		unsigned long offset;
		};

		/*