and most self-contained way to deal with it.
> >
> > Fixes: 8f78515425da ("iommu/arm-smmu: Implement of_xlate() for SMMUv3")
> > Reported-by: Tomasz Nowicki
> > Tested-by: Tomasz Nowicki
> > Tested-by: Jayachandran C.
> > Signed-off-by: Robin Murphy
dged PCI devices may end up with duplicated IDs */
> + for (j = 0; j < i; j++)
> + if (fwspec->ids[j] == sid)
> + break;
> + if (j < i)
> + continue;
> +
> arm_smmu_write_strtab
On Fri, Jun 09, 2017 at 04:43:07PM +0100, Robin Murphy wrote:
> On 09/06/17 12:38, Jayachandran C wrote:
> > On Fri, Jun 09, 2017 Robin Murphy wrote:
> >>
> >> On 30/05/17 13:03, Geetha sowjanya wrote:
> >>> From: Linu Cherian
> >>>
> >>
On Fri, Jun 09, 2017 Robin Murphy wrote:
>
> On 30/05/17 13:03, Geetha sowjanya wrote:
> > From: Linu Cherian
> >
> > Cavium ThunderX2 SMMU implementation doesn't support page 1 register space
> > and PAGE0_REGS_ONLY option is enabled as an errata workaround.
> > This option when turned on, repla
On Thu, Apr 27, 2017 at 5:16 PM, Geetha sowjanya
wrote:
> From: Geetha
>
> Add MIDR values for Cavium cn99xx SoCs
>
> Signed-off-by: Geetha
> ---
> arch/arm64/include/asm/cputype.h | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm64/include/asm/cputype.h
> b/arch/arm64/inclu
On Fri, Apr 21, 2017 at 12:57:05PM -0500, Bjorn Helgaas wrote:
> On Fri, Apr 21, 2017 at 05:05:41PM +0000, Jayachandran C wrote:
> > On Fri, Apr 21, 2017 at 10:48:15AM -0500, Bjorn Helgaas wrote:
> > > On Mon, Apr 17, 2017 at 12:47 PM, Jayachandran C
> > > wrote:
>
On Fri, Apr 21, 2017 at 10:48:15AM -0500, Bjorn Helgaas wrote:
> On Mon, Apr 17, 2017 at 12:47 PM, Jayachandran C
> wrote:
> > On Fri, Apr 14, 2017 at 09:00:06PM -0500, Bjorn Helgaas wrote:
> >> On Fri, Apr 14, 2017 at 4:06 PM, Jayachandran C
> >> wrote:
> >&g
On Fri, Apr 14, 2017 at 09:00:06PM -0500, Bjorn Helgaas wrote:
> On Fri, Apr 14, 2017 at 4:06 PM, Jayachandran C
> wrote:
> > On Thu, Apr 13, 2017 at 07:19:11PM -0500, Bjorn Helgaas wrote:
> >> I tentatively applied both patches to pci/host-thunder for v4.12.
> >>
On Thu, Apr 13, 2017 at 07:19:11PM -0500, Bjorn Helgaas wrote:
> I tentatively applied both patches to pci/host-thunder for v4.12.
>
> However, I am concerned about the topology here:
>
> On Thu, Apr 13, 2017 at 08:30:45PM +0000, Jayachandran C wrote:
> > On Cavium Thunder
as() works correctly.
The function pci_for_each_dma_alias() is updated to stop when it see a
bridge with this flag set.
Signed-off-by: Jayachandran C
Reviewed-by: Robin Murphy
Acked-by: David Daney
---
drivers/pci/search.c | 4
include/linux/pci.h | 2 ++
2 files changed, 6 insertions(+)
as for the endpoint is also used by the ARM GICv3 MSI-X
code. Without this quirk, the GIC Interrupt Translation Tables are
setup with the invalid Requester ID, and the MSI-X generated by the
device fails to be translated and routed.
Signed-off-by: Jayachandran C
Reviewed-by: Robin Murphy
Acked
new address of author
v2>v3:
- changed device flag name from PCI_DEV_FLAGS_DMA_ALIAS_ROOT to
PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT
- updated commit message to make the quirk clearer.
Jayachandran C (2):
PCI: Add device flag PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT
PCI: quirks: Fix ThunderX2 dma
On Wed, Apr 12, 2017 at 02:11:38PM -0500, Bjorn Helgaas wrote:
> On Wed, Apr 12, 2017 at 06:10:34PM +0000, Jayachandran C wrote:
> > On Wed, Apr 12, 2017 at 11:21:18AM -0500, Bjorn Helgaas wrote:
> > > On Tue, Apr 11, 2017 at 03:27:02PM +0000, Jayachandran C wrote:
> > >
On Wed, Apr 12, 2017 at 11:21:18AM -0500, Bjorn Helgaas wrote:
> On Tue, Apr 11, 2017 at 03:27:02PM +0000, Jayachandran C wrote:
> > On Tue, Apr 11, 2017 at 08:41:25AM -0500, Bjorn Helgaas wrote:
> > > [+cc Joerg]
> > >
> > > On Tue, Apr 11, 2017 at 07
On Tue, Apr 11, 2017 at 08:41:25AM -0500, Bjorn Helgaas wrote:
> [+cc Joerg]
>
> On Tue, Apr 11, 2017 at 07:10:48AM +, Jayachandran C wrote:
> > On Mon, Apr 10, 2017 at 08:28:47PM -0500, Bjorn Helgaas wrote:
> > > Hi Jayachandran,
> > >
> > >
On Mon, Apr 10, 2017 at 08:28:47PM -0500, Bjorn Helgaas wrote:
> Hi Jayachandran,
>
> On Mon, Apr 03, 2017 at 01:15:04PM +, Jayachandran C wrote:
> > The Cavium ThunderX2 arm64 SoCs (called Broadcom Vulcan earlier), the PCI
> > topology is slightly unusual. For a multi-
[Moving Bjorn back to to: ]
On Tue, Apr 04, 2017 at 03:28:26PM +0100, Robin Murphy wrote:
> On 04/04/17 12:50, Jayachandran C wrote:
> > On Mon, Apr 03, 2017 at 04:07:53PM +0100, Robin Murphy wrote:
> >> On 03/04/17 14:15, Jayachandran C wrote:
> >>> The Caviu
On Mon, Apr 03, 2017 at 04:07:53PM +0100, Robin Murphy wrote:
> On 03/04/17 14:15, Jayachandran C wrote:
> > The Cavium ThunderX2 arm64 SoCs (called Broadcom Vulcan earlier), the PCI
> > topology is slightly unusual. For a multi-node system, it looks like:
> >
> > [n
0XX).
Signed-off-by: Jayachandran C
---
drivers/pci/quirks.c | 14 ++
1 file changed, 14 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 6736836..564a84a 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3958,6 +3958,20 @@ DECL
>v3:
- changed device flag name from PCI_DEV_FLAGS_DMA_ALIAS_ROOT to
PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT
- updated commit message to make the quirk clearer.
Let me know your comments and suggestions.
Thanks,
JC.
Jayachandran C (2):
PCI: Add device flag PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT
PCI: quirk
as() works correctly.
The function pci_for_each_dma_alias() is updated to stop when it see a
bridge with this flag set.
Signed-off-by: Jayachandran C
---
drivers/pci/search.c | 4
include/linux/pci.h | 2 ++
2 files changed, 6 insertions(+)
diff --git a/drivers/pci/search.c b/drivers/pc
On Wed, Mar 22, 2017 at 11:13:05AM -0400, Jon Masters wrote:
> On 03/22/2017 04:51 AM, Jayachandran C wrote:
> > Hi Bjorn, Alex,
> >
> > Here is v3 of the patchset to handle the PCIe topology quirk of
> > Cavium ThunderX2 (previously called Broadcom Vulcan).
> >
On Wed, Mar 22, 2017 at 08:51:10AM +, Jayachandran C wrote:
> From: Jayachandran C
Looks like I did not fix up the author to my new mail ID. Please ignore
this part.
I can send out a clean revision if needed, until then please drop the
broadcom.com mail id in any reply to avoid boun
From: Jayachandran C
The Cavium ThunderX2 arm64 SoCs (called Broadcom Vulcan earlier), the PCI
topology is slightly unusual. For a multi-node system, it looks like:
[node level PCI bridges - one per node]
[SoC PCI devices with MSI-X but no IOMMU]
[PCI-PCIe "glue" bridges - up
From: Jayachandran C
Add a new quirk flag PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT to limit the DMA
alias search to go no further than the bridge where the IOMMU unit is
attached.
The flag will be used to indicate a bridge device which forwards the
address translation requests to the IOMMU, i.e where
rom PCI_DEV_FLAGS_DMA_ALIAS_ROOT to
PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT
- updated commit message to make the quirk clearer.
Let me know your comments and suggestions.
Thanks,
JC.
Jayachandran C (2):
PCI: Add device flag PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT
PCI: quirks: Fix ThunderX2 dma alias handling
drivers/
[Adding ARM GIC and SMMU maintainers]
On Sat, Jun 11, 2016 at 10:54 PM, Bjorn Helgaas wrote:
> On Sun, May 08, 2016 at 03:03:21PM +0530, Jayachandran C wrote:
>> The Broadcom Vulcan PCI topology is slightly unusual, for a multi-node
>> system, it looks like
On Wed, May 11, 2016 at 7:56 PM, Robin Murphy wrote:
> On 11/05/16 07:28, Jayachandran C wrote:
>>
>> On Mon, May 9, 2016 at 3:40 PM, Robin Murphy wrote:
>>>
>>> On 08/05/16 10:33, Jayachandran C via iommu wrote:
>>>>
>>>>
>>>&g
On Mon, May 9, 2016 at 3:40 PM, Robin Murphy wrote:
> On 08/05/16 10:33, Jayachandran C via iommu wrote:
>>
>> Add a new flag PCI_DEV_FLAGS_DMA_ALIAS_ROOT to limit the DMA alias
>> search to go no further than the bridge where the IOMMU is attached.
>>
>> This has
buses above would hit internal glue bridges which will
change the RID.
Update the function pci_for_each_dma_alias() to stop when it see a
bridge with this flag set.
Signed-off-by: Jayachandran C
---
Here is v2 of the patch, the previous discussion is at
http://lists.linuxfoundation.org/pipe
with flag PCI_DEV_FLAGS_DMA_ALIAS_ROOT so that the alias and RID
calculations are correct.
Signed-off-by: Jayachandran C
---
drivers/pci/quirks.c | 14 ++
1 file changed, 14 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 8e67802..62664b5 100644
--- a
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