This patch adds Broadcom FlexRM low-level reset for
VFIO platform.
It will do the following:
1. Disable/Deactivate each FlexRM ring
2. Flush each FlexRM ring
The cleanup sequence for FlexRM rings is adapted from
Broadcom FlexRM mailbox driver.
Signed-off-by: Anup Patel
Reviewed-by: Oza Oza
Rev
Not allowing No-IOMMU mode for devices already having
iommu_ops on their bus is very conservative.
We now have IOMMU (such as ARM SMMU) which can bypass
transcations when IOMMU is not configured for a given
device. In addition, it is not necessary to have all
devices on bus to be upstream to an IO
This patchset primarily adds Broadcom FlexRM reset module for
VFIO platform driver. We also have minor improvments in IOMMU
and VFIO driver to allow VFIO no-IOMMU mode access to FlexRM.
The patches are based on Linux-4.13-rc1 and can also be
found at flexrm-vfio-v2 branch of
https://github.com/Bro
On Wed, Jul 19, 2017 at 10:20 PM, Scott Branden
wrote:
> Hi Anup,
>
> NAK - as indicated in internal review please use unmodified Broadcom legal
> header in its own comment block.
I had addressed your internal review comments and used
standard GLPv2 header (also present in other drivers). The
onl
On Wed, Jul 19, 2017 at 5:23 PM, Will Deacon wrote:
> On Wed, Jul 19, 2017 at 05:09:05PM +0530, Anup Patel wrote:
>> On Wed, Jul 19, 2017 at 5:03 PM, Will Deacon wrote:
>> > On Wed, Jul 19, 2017 at 05:01:11PM +0530, Anup Patel wrote:
>> >> On Wed, Jul 19, 2017 at 4:55 PM, Will Deacon wrote:
>> >
://github.com/0day-ci/linux/commits/Robin-Murphy/Optimise-64-bit-IOVA-allocations/20170719-060847
> base: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next
> config: arm-multi_v7_defconfig (attached as .config)
> compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1
On Wed, 19 Jul 2017 18:45:43 +0800
"Liu, Yi L" wrote:
> On Mon, Jul 17, 2017 at 04:45:15PM -0600, Alex Williamson wrote:
> > On Mon, 17 Jul 2017 10:58:41 +
> > "Liu, Yi L" wrote:
> >
> > > Hi Alex,
> > >
> > > Pls refer to the response inline.
> > >
> > > > -Original Message-
Hi Anup,
NAK - as indicated in internal review please use unmodified Broadcom
legal header in its own comment block.
On 17-07-19 02:33 AM, Anup Patel wrote:
This patch adds low-level reset for Broadcom FlexRM to
VFIO platform.
It will do the following:
1. Disable/Deactivate each FlexRM ring
On 19/07/17 04:12, Yong Zhi wrote:
> From: Tomasz Figa
>
> This patch adds support for the IPU3 DMA mapping API.
>
> Signed-off-by: Tomasz Figa
> Signed-off-by: Yong Zhi
> ---
> drivers/media/pci/intel/ipu3/Kconfig | 8 +
> drivers/media/pci/intel/ipu3/Makefile | 2 +-
> driver
Hi Zhen,
[auto build test WARNING on iommu/next]
[also build test WARNING on v4.13-rc1]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Robin-Murphy/Optimise-64-bit-IOVA-allocations/20170719
On 19/07/17 04:12, Yong Zhi wrote:
> From: Tomasz Figa
>
> This driver translates Intel IPU3 internal virtual
> address to physical address.
>
> Signed-off-by: Tomasz Figa
> Signed-off-by: Yong Zhi
> ---
> drivers/media/pci/intel/ipu3/Kconfig| 9 +
> drivers/media/pci/intel/ipu3/Makefil
Hi Robin,
My apology for noise.
I have taken care of your comments.
but these whole patch-set, (specially PCI patch-set) inbound memory
addition depends on Lorenzo's patch-set
.
So I will be posting version 8 patches for IOVA reservation soon after
Lorenzo's patches are made in.
Regards,
Oza.
O
On Wed, Jul 19, 2017 at 05:09:05PM +0530, Anup Patel wrote:
> On Wed, Jul 19, 2017 at 5:03 PM, Will Deacon wrote:
> > On Wed, Jul 19, 2017 at 05:01:11PM +0530, Anup Patel wrote:
> >> On Wed, Jul 19, 2017 at 4:55 PM, Will Deacon wrote:
> >> > On Wed, Jul 19, 2017 at 04:53:04PM +0530, Anup Patel wr
On Wed, Jul 19, 2017 at 5:03 PM, Will Deacon wrote:
> On Wed, Jul 19, 2017 at 05:01:11PM +0530, Anup Patel wrote:
>> On Wed, Jul 19, 2017 at 4:55 PM, Will Deacon wrote:
>> > On Wed, Jul 19, 2017 at 04:53:04PM +0530, Anup Patel wrote:
>> >> On Wed, Jul 19, 2017 at 4:30 PM, Robin Murphy
>> >> wro
On Wed, Jul 19, 2017 at 05:01:11PM +0530, Anup Patel wrote:
> On Wed, Jul 19, 2017 at 4:55 PM, Will Deacon wrote:
> > On Wed, Jul 19, 2017 at 04:53:04PM +0530, Anup Patel wrote:
> >> On Wed, Jul 19, 2017 at 4:30 PM, Robin Murphy wrote:
> >> > On 19/07/17 10:33, Anup Patel wrote:
> >> >> The ARM S
On Wed, Jul 19, 2017 at 5:00 PM, Will Deacon wrote:
> On Wed, Jul 19, 2017 at 04:56:38PM +0530, Anup Patel wrote:
>> On Wed, Jul 19, 2017 at 4:53 PM, Will Deacon wrote:
>> > On Wed, Jul 19, 2017 at 04:49:00PM +0530, Anup Patel wrote:
>> >> On Wed, Jul 19, 2017 at 4:28 PM, Robin Murphy
>> >> wro
On Wed, Jul 19, 2017 at 4:55 PM, Will Deacon wrote:
> On Wed, Jul 19, 2017 at 04:53:04PM +0530, Anup Patel wrote:
>> On Wed, Jul 19, 2017 at 4:30 PM, Robin Murphy wrote:
>> > On 19/07/17 10:33, Anup Patel wrote:
>> >> The ARM SMMUv3 support bypassing transactions for which domain
>> >> is not con
On Wed, Jul 19, 2017 at 04:56:38PM +0530, Anup Patel wrote:
> On Wed, Jul 19, 2017 at 4:53 PM, Will Deacon wrote:
> > On Wed, Jul 19, 2017 at 04:49:00PM +0530, Anup Patel wrote:
> >> On Wed, Jul 19, 2017 at 4:28 PM, Robin Murphy wrote:
> >> > On 19/07/17 10:33, Anup Patel wrote:
> >> >> Some of t
On 19/07/17 12:26, Anup Patel wrote:
> On Wed, Jul 19, 2017 at 4:53 PM, Will Deacon wrote:
>> On Wed, Jul 19, 2017 at 04:49:00PM +0530, Anup Patel wrote:
>>> On Wed, Jul 19, 2017 at 4:28 PM, Robin Murphy wrote:
On 19/07/17 10:33, Anup Patel wrote:
> Some of the IOMMUs (such as ARM SMMU)
On Wed, Jul 19, 2017 at 4:55 PM, Robin Murphy wrote:
> On 19/07/17 12:17, Anup Patel wrote:
>> On Wed, Jul 19, 2017 at 4:27 PM, Robin Murphy wrote:
>>> On 19/07/17 10:33, Anup Patel wrote:
This patchset primarily adds Broadcom FlexRM reset module for
VFIO platform driver. We also have m
On Wed, Jul 19, 2017 at 4:53 PM, Will Deacon wrote:
> On Wed, Jul 19, 2017 at 04:49:00PM +0530, Anup Patel wrote:
>> On Wed, Jul 19, 2017 at 4:28 PM, Robin Murphy wrote:
>> > On 19/07/17 10:33, Anup Patel wrote:
>> >> Some of the IOMMUs (such as ARM SMMU) are capable of bypassing
>> >> transactio
On 19/07/17 12:17, Anup Patel wrote:
> On Wed, Jul 19, 2017 at 4:27 PM, Robin Murphy wrote:
>> On 19/07/17 10:33, Anup Patel wrote:
>>> This patchset primarily adds Broadcom FlexRM reset module for
>>> VFIO platform driver. We also have minor improvments in IOMMU
>>> and VFIO driver to allow VFIO
On Wed, Jul 19, 2017 at 04:53:04PM +0530, Anup Patel wrote:
> On Wed, Jul 19, 2017 at 4:30 PM, Robin Murphy wrote:
> > On 19/07/17 10:33, Anup Patel wrote:
> >> The ARM SMMUv3 support bypassing transactions for which domain
> >> is not configured. The patch adds corresponding IOMMU capability
> >>
On Wed, Jul 19, 2017 at 04:49:00PM +0530, Anup Patel wrote:
> On Wed, Jul 19, 2017 at 4:28 PM, Robin Murphy wrote:
> > On 19/07/17 10:33, Anup Patel wrote:
> >> Some of the IOMMUs (such as ARM SMMU) are capable of bypassing
> >> transactions for which no IOMMU domain is configured.
> >>
> >> This
On Wed, Jul 19, 2017 at 4:30 PM, Robin Murphy wrote:
> On 19/07/17 10:33, Anup Patel wrote:
>> The ARM SMMUv3 support bypassing transactions for which domain
>> is not configured. The patch adds corresponding IOMMU capability
>> to advertise this fact.
>>
>> Signed-off-by: Anup Patel
>> ---
>> d
On Wed, Jul 19, 2017 at 4:28 PM, Robin Murphy wrote:
> On 19/07/17 10:33, Anup Patel wrote:
>> Some of the IOMMUs (such as ARM SMMU) are capable of bypassing
>> transactions for which no IOMMU domain is configured.
>>
>> This patch adds IOMMU_CAP_BYPASS which can be used by IOMMU
>> drivers to adv
On Wed, Jul 19, 2017 at 4:27 PM, Robin Murphy wrote:
> On 19/07/17 10:33, Anup Patel wrote:
>> This patchset primarily adds Broadcom FlexRM reset module for
>> VFIO platform driver. We also have minor improvments in IOMMU
>> and VFIO driver to allow VFIO no-IOMMU mode access to FlexRM.
>
> I'm str
On Mon, Jul 17, 2017 at 04:45:15PM -0600, Alex Williamson wrote:
> On Mon, 17 Jul 2017 10:58:41 +
> "Liu, Yi L" wrote:
>
> > Hi Alex,
> >
> > Pls refer to the response inline.
> >
> > > -Original Message-
> > > From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org] On
>
On 19/07/17 10:33, Anup Patel wrote:
> The ARM SMMUv3 support bypassing transactions for which domain
> is not configured. The patch adds corresponding IOMMU capability
> to advertise this fact.
>
> Signed-off-by: Anup Patel
> ---
> drivers/iommu/arm-smmu-v3.c | 2 ++
> 1 file changed, 2 inserti
On 19/07/17 10:33, Anup Patel wrote:
> The ARM SMMUv1 and SMMUv2 support bypassing transactions for
> which domain is not configured. The patch adds corresponding
> IOMMU capability to advertise this fact.
>
> Signed-off-by: Anup Patel
> ---
> drivers/iommu/arm-smmu.c | 2 ++
> 1 file changed, 2
On 19/07/17 10:33, Anup Patel wrote:
> Some of the IOMMUs (such as ARM SMMU) are capable of bypassing
> transactions for which no IOMMU domain is configured.
>
> This patch adds IOMMU_CAP_BYPASS which can be used by IOMMU
> drivers to advertise transation bypass capability of an IOMMU.
Whatever t
On 19/07/17 10:33, Anup Patel wrote:
> This patchset primarily adds Broadcom FlexRM reset module for
> VFIO platform driver. We also have minor improvments in IOMMU
> and VFIO driver to allow VFIO no-IOMMU mode access to FlexRM.
I'm struggling to understand the IOMMU changes here - what's the
Flex
> -Original Message-
> From: Will Deacon [mailto:will.dea...@arm.com]
> Sent: Friday, July 14, 2017 8:33 PM
> To: Shameerali Kolothum Thodi
> Cc: lorenzo.pieral...@arm.com; marc.zyng...@arm.com;
> sudeep.ho...@arm.com; robin.mur...@arm.com; hanjun@linaro.org;
> Gabriele Paoloni; John
On 19/07/17 09:37, Ard Biesheuvel wrote:
> On 18 July 2017 at 17:57, Robin Murphy wrote:
>> Hi all,
>>
>> In the wake of the ARM SMMU optimisation efforts, it seems that certain
>> workloads (e.g. storage I/O with large scatterlists) probably remain quite
>> heavily influenced by IOVA allocation p
On 19/07/17 03:40, Sricharan R wrote:
> Hi Robin,
>
> On 7/18/2017 6:14 PM, Robin Murphy wrote:
>> Echoing what we do for Stream Map Entries, maintain a software shadow
>> state for context bank configuration. With this in place, we are mere
>> moments away from blissfully easy suspend/resume supp
On 11/07/17 05:23, Bjorn Helgaas wrote:
> [+cc Joerg, iommu]
>
> On Fri, Jun 30, 2017 at 12:24 AM, Alexey Kardashevskiy wrote:
>> From: Yongji Xie
>>
>> Some iommu drivers would be initialized after PCI device
>> enumeration. So PCI_BUS_FLAGS_MSI_REMAP would not be set
>> when probing PCI device
This patch adds low-level reset for Broadcom FlexRM to
VFIO platform.
It will do the following:
1. Disable/Deactivate each FlexRM ring
2. Flush each FlexRM ring
The cleanup sequence for FlexRM rings is adapted from
Broadcom FlexRM mailbox driver.
Signed-off-by: Anup Patel
Reviewed-by: Oza Oza
Not allowing No-IOMMU mode for devices already having
iommu_ops on their bus is little conservative.
We now have IOMMU (such as ARM SMMU) which can bypass
transcations for which IOMMU domain is not configured
hence No-IOMMU mode should not be allowed when iommu_ops
are available and IOMMU_CAP_BYPA
The ARM SMMUv1 and SMMUv2 support bypassing transactions for
which domain is not configured. The patch adds corresponding
IOMMU capability to advertise this fact.
Signed-off-by: Anup Patel
---
drivers/iommu/arm-smmu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/arm-smmu.c
The ARM SMMUv3 support bypassing transactions for which domain
is not configured. The patch adds corresponding IOMMU capability
to advertise this fact.
Signed-off-by: Anup Patel
---
drivers/iommu/arm-smmu-v3.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/arm-smmu-v3.c b/dr
Some of the IOMMUs (such as ARM SMMU) are capable of bypassing
transactions for which no IOMMU domain is configured.
This patch adds IOMMU_CAP_BYPASS which can be used by IOMMU
drivers to advertise transation bypass capability of an IOMMU.
Signed-off-by: Anup Patel
---
include/linux/iommu.h | 4
This patchset primarily adds Broadcom FlexRM reset module for
VFIO platform driver. We also have minor improvments in IOMMU
and VFIO driver to allow VFIO no-IOMMU mode access to FlexRM.
The patches are based on Linux-4.13-rc1 and can also be
found at flexrm-vfio-v1 branch of
https://github.com/Bro
On 18 July 2017 at 17:57, Robin Murphy wrote:
> Hi all,
>
> In the wake of the ARM SMMU optimisation efforts, it seems that certain
> workloads (e.g. storage I/O with large scatterlists) probably remain quite
> heavily influenced by IOVA allocation performance. Separately, Ard also
> reported mass
On Tue, 2017-07-11 at 11:39 +0100, Robin Murphy wrote:
> I have no idea what the context is here, but this flag looks wrong
> generally. IRQ remapping is a property of the irqchip and has nothing to
> do with PCI, so pretending it's a property of PCI buses looks like a
> massive hack around... some
On Wed, Jul 19, 2017 at 5:12 AM, Yong Zhi wrote:
> From: Tomasz Figa
>
> This patch adds support for the IPU3 DMA mapping API.
>
> Signed-off-by: Tomasz Figa
> Signed-off-by: Yong Zhi
This needs some explanation on why you decided to go down the
route of adding your own dma_map_ops. It's not o
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