On Fri, May 03, 2019 at 07:35:31PM +0530, Srinath Mannam wrote: > This patch set will reserve IOVA addresses for DMA memory holes. > > The IPROC host controller allows only a few ranges of physical address > as inbound PCI addresses which are listed through dma-ranges DT property. > Added dma_ranges list field of PCI host bridge structure to hold these > allowed inbound address ranges in sorted order. > > Process this list and reserve IOVA addresses that are not present in its > resource entries (ie DMA memory holes) to prevent allocating IOVA > addresses that cannot be allocated as inbound addresses. > > This patch set is based on Linux-5.1-rc3. > > Changes from v5: > - Addressed Robin Murphy, Lorenzo review comments. > - Error handling in dma ranges list processing. > - Used commit messages given by Lorenzo to all patches. > > Changes from v4: > - Addressed Bjorn, Robin Murphy and Auger Eric review comments. > - Commit message modification. > - Change DMA_BIT_MASK to "~(dma_addr_t)0". > > Changes from v3: > - Addressed Robin Murphy review comments. > - pcie-iproc: parse dma-ranges and make sorted resource list. > - dma-iommu: process list and reserve gaps between entries > > Changes from v2: > - Patch set rebased to Linux-5.0-rc2 > > Changes from v1: > - Addressed Oza review comments. > > Srinath Mannam (3): > PCI: Add dma_ranges window list > iommu/dma: Reserve IOVA for PCIe inaccessible DMA address > PCI: iproc: Add sorted dma ranges resource entries to host bridge > > drivers/iommu/dma-iommu.c | 35 ++++++++++++++++++++++++++--- > drivers/pci/controller/pcie-iproc.c | 44 ++++++++++++++++++++++++++++++++++++- > drivers/pci/probe.c | 3 +++ > include/linux/pci.h | 1 + > 4 files changed, 79 insertions(+), 4 deletions(-) I have applied the series to pci/iova-dma-ranges, targeting v5.2, thanks. Lorenzo
