On Tue, Nov 26, 2019 at 05:40:26PM +0100, Christoph Hellwig wrote:
> On Tue, Nov 26, 2019 at 12:26:38PM +0100, Christian Zigotzky wrote:
> > Hello Christoph,
> >
> > The PCI TV card works with your patch! I was able to patch your Git kernel
> > with the patch above.
> >
> > I haven't found any
On 2019-11-26 6:51 pm, Nicolas Saenz Julienne wrote:
On Mon, 2019-11-25 at 16:33 +, Robin Murphy wrote:
On 25/11/2019 7:44 am, Christoph Hellwig wrote:
On Sat, Nov 23, 2019 at 09:51:08AM -0700, Nathan Chancellor wrote:
Just as an FYI, this introduces a warning on arm32 allyesconfig for
On Tue, Nov 26, 2019 at 1:13 AM John Garry wrote:
>
> On 21/11/2019 11:49, Will Deacon wrote:
> > Forcefully unbinding the Arm SMMU drivers is a pretty dangerous operation,
> > since it will likely lead to catastrophic failure for any DMA devices
> > mastering through the SMMU being unbound. When
On Mon, 2019-11-25 at 16:33 +, Robin Murphy wrote:
> On 25/11/2019 7:44 am, Christoph Hellwig wrote:
> > On Sat, Nov 23, 2019 at 09:51:08AM -0700, Nathan Chancellor wrote:
> > > Just as an FYI, this introduces a warning on arm32 allyesconfig for me:
> >
> > I think the dma_limit argument to
In case the new region gets merged into another one, the nr
list node is freed. Checking its type while completing the
merge algorithm leads to a use-after-free. Use new->type
instead.
Fixes: 4dbd258ff63e ("iommu: Revisit iommu_insert_resv_region()
implementation")
Signed-off-by: Eric Auger
The PLX PEX NTB forwards DMA transactions using Requester ID's that
don't exist as PCI devices. The devfn for a transaction is used as an
index into a lookup table storing the origin of a transaction on the
other side of the bridge.
This patch aliases all possible devfn's to the NTB device so
pci_add_dma_alias_range can be used to create a dma alias for range of
devfns.
Reviewed-by: Logan Gunthorpe
Signed-off-by: James Sewart
---
drivers/pci/pci.c | 30 +++---
include/linux/pci.h | 1 +
2 files changed, 24 insertions(+), 7 deletions(-)
diff --git
> +int _pci_add_dma_alias_range(struct pci_dev *dev, u8 devfn_from, int len)
This should be mrked static. Also single underscore prefixes are rather
unusual in Linux. Either use two or use a more descriptive name.
> @@ -5875,18 +5887,21 @@ int pci_set_vga_state(struct pci_dev *dev, bool
>
On Tue Nov 26 19, Eric Auger wrote:
In case the new region gets merged into another one, the nr
list node is freed. Checking its type while completing the
merge algorithm leads to a use-after-free. Use new->type
instead.
Fixes: 4dbd258ff63e ("iommu: Revisit iommu_insert_resv_region()
The PLX PEX NTB forwards DMA transactions using Requester ID's that
don't exist as PCI devices. The devfn for a transaction is used as an
index into a lookup table storing the origin of a transaction on the
other side of the bridge.
Add helper pci_add_dma_alias_range that can alias a range of
On 2019-11-26 10:03 a.m., James Sewart wrote:
> The PLX PEX NTB forwards DMA transactions using Requester ID's that
> don't exist as PCI devices. The devfn for a transaction is used as an
> index into a lookup table storing the origin of a transaction on the
> other side of the bridge.
>
> Add
On Tue, Nov 26, 2019 at 12:26:38PM +0100, Christian Zigotzky wrote:
> Hello Christoph,
>
> The PCI TV card works with your patch! I was able to patch your Git kernel
> with the patch above.
>
> I haven't found any error messages in the dmesg yet.
Thanks. Unfortunately this is a bit of a hack as
On Tue, Nov 26, 2019 at 10:19:39AM +0100, Nicolas Saenz Julienne wrote:
> Some users need to make sure their rounding function accepts and returns
> 64bit long variables regardless of the architecture. Sadly
> roundup/rounddown_pow_two() takes and returns unsigned longs. Create a
> new generic
On 25 November 2019 at 08:39 am, Christoph Hellwig wrote:
On Sat, Nov 23, 2019 at 12:42:27PM +0100, Christian Zigotzky wrote:
Hello Christoph,
Please find attached the dmesg of your Git kernel.
Thanks. It looks like on your platform the swiotlb buffer isn't
actually addressable based on the
In case the new region gets merged into another one, the nr
list node is freed. Checking its type while completing the
merge algorithm leads to a use-after-free. Use new->type
instead.
Fixes: 4dbd258ff63e ("iommu: Revisit iommu_insert_resv_region()
implementation")
Signed-off-by: Eric Auger
On 21/11/2019 11:49, Will Deacon wrote:
Forcefully unbinding the Arm SMMU drivers is a pretty dangerous operation,
since it will likely lead to catastrophic failure for any DMA devices
mastering through the SMMU being unbound. When the driver then attempts
to "handle" the fatal faults, it's very
Some users need to make sure their rounding function accepts and returns
64bit long variables regardless of the architecture. Sadly
roundup/rounddown_pow_two() takes and returns unsigned longs. Create a
new generic 64bit variant of the function and cleanup rougue custom
implementations.
This series aims at providing support for Raspberry Pi 4's PCIe
controller, which is also shared with the Broadcom STB family of
devices.
There was a previous attempt to upstream this some years ago[1] but was
blocked as most STB PCIe integrations have a sparse DMA mapping[2] which
is something
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