Messages in this thread | | | Date | Thu, 18 Mar 2021 10:55:44 +0100 | From | Joerg Roedel <> | Subject | Re: [PATCH] iommu/dma: Resurrect the "forcedac" option |
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On Fri, Mar 05, 2021 at 04:32:34PM +0000, Robin Murphy wrote: > In converting intel-iommu over to the common IOMMU DMA ops, it quietly > lost the functionality of its "forcedac" option. Since this is a handy > thing both for testing and for performance optimisation on certain > platforms, reimplement it under the common IOMMU parameter namespace. > > For the sake of fixing the inadvertent breakage of the Intel-specific > parameter, remove the dmar_forcedac remnants and hook it up as an alias > while documenting the transition to the new common parameter. > > Fixes: c588072bba6b ("iommu/vt-d: Convert intel iommu driver to the iommu ops") > Signed-off-by: Robin Murphy <robin.murphy@arm.com> > --- > Documentation/admin-guide/kernel-parameters.txt | 15 ++++++++------- > drivers/iommu/dma-iommu.c | 13 ++++++++++++- > drivers/iommu/intel/iommu.c | 5 ++--- > include/linux/dma-iommu.h | 2 ++ > 4 files changed, 24 insertions(+), 11 deletions(-)
Applied for v5.13, thanks.
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