Current is using !flags, and we are going to use
IORESOURCE_DISABLED instead of clearing resource flags.
Let's convert all !flags to helper function resource_disabled().
resource_disabled will check !flags and IORESOURCE_DISABLED both.
Cc: linux-al...@vger.kernel.org
Cc: linux-i...@vger.kernel.or
Due to Errata#27704 CN88xx SMMUv2,supports only shared ASID and VMID
namespaces; specifically within a given node SMMU0 and SMMU1 share,
as does SMMU2 and SMMU3.
This patch address these issuee by supplying asid and vmid
while calculating ASID and VMID for Thunder SMMUv2.
NOTE: resending with co
From: Jacek Lawrynowicz
After removing PCI_DEV_FLAGS_DMA_ALIAS_DEVFN, the (1 << 4) value was
unused. Squash the other values so all the bits are adjacent. No
functional change intended.
(I'm not sure this is worth doing. We have 16 flag bits and we're not
even close to exhausting them. But i
This should be folded into the previous patch. I left it separate to show
the interface difference more clearly.
Also, pci_devs_are_dma_aliases() uses PCI internals (dma_alias_mask), so I
think it should be in PCI code instead of in IOMMU code. That would mean
both it and pci_add_dma_alias() sho
From: Jacek Lawrynowicz
MIC x200 NTB forwards PCIe traffic using multiple alien RID. They have to
be added as aliases to the DMA device in order to allow buffer access
when IOMMU is enabled.
Signed-off-by: Jacek Lawrynowicz
Acked-by: David Woodhouse
---
drivers/pci/quirks.c | 13 +++
From: Jacek Lawrynowicz
Add a pci_add_dma_alias() interface to encapsulate the details of adding an
alias. No functional change intended.
---
drivers/pci/pci.c| 14 ++
drivers/pci/pci.h|2 ++
drivers/pci/quirks.c | 19 +++
3 files changed, 23 insertio
From: Jacek Lawrynowicz
One of the quirks that adds DMA aliases logs an informational message in
dmesg. Move that to pci_add_dma_alias() so all users log the message
consistently. No functional change intended (except extra message).
---
drivers/pci/pci.c|2 ++
drivers/pci/quirks.c |
This is a revision of Jacek's v3 posting:
http://lkml.kernel.org/r/1454152012-46337-1-git-send-email-jacek.lawrynow...@intel.com
The changes from v3 are:
- Split into smaller patches for reviewability
- Move printk when adding DMA alias
- Change dma_alias_is_enabled() interface to take two
From: Jacek Lawrynowicz
---
drivers/iommu/iommu.c | 17 ++---
drivers/pci/pci.c | 11 +--
drivers/pci/probe.c |1 +
drivers/pci/search.c | 14 +-
include/linux/pci.h |4 +---
5 files changed, 30 insertions(+), 17 deletions(-)
diff --git a/
Due to Errata#27704 CN88xx SMMUv2,supports only shared ASID and VMID
namespaces; specifically within a given node SMMU0 and SMMU1 share,
as does SMMU2 and SMMU3.
This patch tries to address these issuee by supplying asid and vmid
base from devicetree.
changes from V2:
- removed *_base fr
On 02/24/2016 11:10 AM, Mark Rutland wrote:
On Wed, Feb 24, 2016 at 03:54:48PM +, Chalamarla, Tirumalesh wrote:
On 2/24/16, 3:32 AM, "Mark Rutland" wrote:
On Tue, Feb 23, 2016 at 03:50:21PM -0800, Tirumalesh Chalamarla wrote:
in Summary,
if i change asid-base to cavium,asid-base and
On Wed, Feb 24, 2016 at 03:54:48PM +, Chalamarla, Tirumalesh wrote:
>
> On 2/24/16, 3:32 AM, "Mark Rutland" wrote:
>
> >On Tue, Feb 23, 2016 at 03:50:21PM -0800, Tirumalesh Chalamarla wrote:
> >> in Summary,
> >>
> >> if i change asid-base to cavium,asid-base and still use DT for
> >> suppl
On 02/24/2016 05:38 AM, Robin Murphy wrote:
On 23/02/16 23:56, Tirumalesh Chalamarla wrote:
On 02/23/2016 04:19 AM, Robin Murphy wrote:
On 18/02/16 18:29, tchalama...@caviumnetworks.com wrote:
From: Tirumalesh Chalamarla
Due to Errata#27704 CN88xx SMMUv2,supports only shared ASID and VM
On 2/24/16, 3:32 AM, "Mark Rutland" wrote:
>On Tue, Feb 23, 2016 at 03:50:21PM -0800, Tirumalesh Chalamarla wrote:
>> in Summary,
>>
>> if i change asid-base to cavium,asid-base and still use DT for
>> supplying base value, is this a solution that will be accepted,
>
>No. The property is _
On 23/02/16 23:56, Tirumalesh Chalamarla wrote:
On 02/23/2016 04:19 AM, Robin Murphy wrote:
On 18/02/16 18:29, tchalama...@caviumnetworks.com wrote:
From: Tirumalesh Chalamarla
Due to Errata#27704 CN88xx SMMUv2,supports only shared ASID and VMID
namespaces; specifically within a given node
On Tue, Feb 23, 2016 at 03:50:21PM -0800, Tirumalesh Chalamarla wrote:
> in Summary,
>
> if i change asid-base to cavium,asid-base and still use DT for
> supplying base value, is this a solution that will be accepted,
No. The property is _insufficient_, regardless of its name. This has
been poin
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