Messages in this thread | | | From | Rob Herring <> | Date | Fri, 12 Aug 2022 12:21:05 -0600 | Subject | Re: [PATCH v4 1/2] PCI: dwc: Drop dependency on ZONE_DMA32 |
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On Thu, Aug 11, 2022 at 6:03 PM Will McVicker <willmcvicker@google.com> wrote: > > Re-work the msi_msg DMA allocation logic to use dmam_alloc_coherent() which > uses the coherent DMA mask to try to return an allocation within the DMA > mask limits. With that, we now can drop the msi_page parameter in struct > dw_pcie_rp. This allows kernel configurations that disable ZONE_DMA32 to > continue supporting a 32-bit DMA mask. Without this patch, the PCIe host > device will fail to probe when ZONE_DMA32 is disabled. > > Fixes: 35797e672ff0 ("PCI: dwc: Fix MSI msi_msg DMA mapping") > Reported-by: Isaac J. Manjarres <isaacmanjarres@google.com> > Signed-off-by: Will McVicker <willmcvicker@google.com> > --- > .../pci/controller/dwc/pcie-designware-host.c | 28 +++++-------------- > drivers/pci/controller/dwc/pcie-designware.h | 1 - > 2 files changed, 7 insertions(+), 22 deletions(-)
Reviewed-by: Rob Herring <robh@kernel.org>
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