Doug Moore 975715b788 iommu_gas: use to first-fit search for lowermatch ... Reverse the order of the search for a free space in lowermatch, to make it a first-fit search. Iommu_gas_match_one always allocates from the beginning of the free gap discovered from searching the tree, so the current code isn't really allocating in a reverse first-fit anyway, and making the search first-fit reduces the number of iommu page table pages that are used. Reported by: alc Reviewed by: alc, kib MFC after: 3 weeks Differential Revision: https://reviews.freebsd.org/D35458		2022-06-14 00:47:22 -05:00
..
busdma_iommu.c	iommu_gas: pass size to iommu_map without rounding	2022-06-10 13:56:54 -05:00
busdma_iommu.h	busdma: Add KMSAN integration	2021-08-10 21:27:54 -04:00
iommu.h	vm_extern: use standard address checkers everywhere	2021-12-30 22:09:08 -06:00
iommu_gas.c	iommu_gas: use to first-fit search for lowermatch	2022-06-14 00:47:22 -05:00
iommu_gas.h	Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights	2021-08-08 10:42:24 -04:00
iommu_msi.h	o Add iommu de-initialization method for MSI interface.	2020-10-24 20:09:27 +00:00
iommu_types.h	Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights	2021-08-08 10:42:24 -04:00