linux-stable.git - Linux kernel stable tree

	Commit message (Collapse)	Author	Age	Files	Lines
*	ia64: rework iommu probing	Christoph Hellwig	2019-08-16	1	-3/+0
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	ia64 currently organizes the iommu probing along machves, which isn't very helpful. Instead just try to probe for Intel IOMMUs in mem_init as they are properly described in ACPI and if none was found initialize the swiotlb buffer. The HP SBA handling is then only done delayed when the actual hardware is probed. Only in the case that we actually found usable IOMMUs we then set up the DMA ops and free the not needed swiotlb buffer. This scheme gets rid of the need for the dma_init machvec operation, and the dig_vtd machvec. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lkml.kernel.org/r/20190813072514.23299-24-hch@lst.de Signed-off-by: Tony Luck <tony.luck@intel.com>
*	[IA64] Add Variable Page Size and IA64 Support in Intel IOMMU	Fenghua Yu	2008-10-17	1	-0/+3
	The patch contains Intel IOMMU IA64 specific code. It defines new machvec dig_vtd, hooks for IOMMU, DMAR table detection, cache line flush function, etc. For a generic kernel with CONFIG_DMAR=y, if Intel IOMMU is detected, dig_vtd is used for machinve vector. Otherwise, kernel falls back to dig machine vector. Kernel parameter "machvec=dig" or "intel_iommu=off" can be used to force kernel to boot dig machine vector. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>