Hi,
On 09/11/2018 12:23 AM, Jean-Philippe Brucker wrote:
On 30/08/2018 05:09, Lu Baolu wrote:
+static int vfio_detach_aux_domain(struct device *dev, void *data)
+{
+ struct iommu_domain *domain = data;
+
+ vfio_mdev_set_aux_domain(dev, NULL);
+ iommu_detach_device(domain, dev-
Hi,
On 09/11/2018 12:22 AM, Jean-Philippe Brucker wrote:
Hi,
On 30/08/2018 05:09, Lu Baolu wrote:
Below APIs are introduced in the IOMMU glue for device drivers to use
the finer granularity translation.
* iommu_capable(IOMMU_CAP_AUX_DOMAIN)
- Represents the ability for supporting multiple
Debugfs extension for Intel IOMMU to dump Interrupt remapping table
entries for Interrupt remapping and Interrupt posting.
The file /sys/kernel/debug/iommu/intel/ir_translation_struct provides
detailed information, such as Index, Source Id, Destination Id, Vector
and the IRTE values for entries wi
Export Intel IOMMU DMA remapping internal states, such as root and
context table entries in debugfs.
Example of such dump in Kabylake:
/sys/kernel/debug/iommu/intel/dmar_translation_struct
IOMMU dmar0: Root Table Address:45699c000
Root Table Entries:
Bus: 0 H: 0 L: 45699f001
Context Table Entri
Add a new config option CONFIG_INTEL_IOMMU_DEBUGFS and do the base
enabling for Intel IOMMU debugfs.
Cc: Lu Baolu
Cc: Fenghua Yu
Cc: Ashok Raj
Cc: Jacob Pan
Co-Developed-by: Gayatri Kammela
Signed-off-by: Gayatri Kammela
Reviewed-by: Andy Shevchenko
Reviewed-by: Lu Baolu
Signed-off-by: Soh
From: Gayatri Kammela
Add Intel IOMMU debugfs extension to dump all the register contents for
each IOMMU device.
Example:
root@OTC-KBLH-01:~# cat /sys/kernel/debug/iommu/intel/iommu_regset
IOMMU: dmar0 Register Base Address: fed9
NameOffset Contents
VER 0x00
To reuse the static functions and the struct declarations, move them to
corresponding header files and export the needed functions.
Cc: Lu Baolu
Cc: Fenghua Yu
Cc: Jacob Pan
Cc: Ashok Raj
Reviewed-by: Andy Shevchenko
Signed-off-by: Gayatri Kammela
Signed-off-by: Sohil Mehta
---
v8: Remove
Add new register definitions added in the VT-d 3.0 specification. Also
include registers that were missing previously.
Cc: Lu Baolu
Cc: Fenghua Yu
Cc: Jacob Pan
Cc: Ashok Raj
Cc: Gayatri Kammela
Signed-off-by: Sohil Mehta
---
v8: Simplify and split the patches differently
include/linux/in
Hi All,
This series aims to add debugfs support for Intel IOMMU. It exposes IOMMU
registers, internal context and dumps individual table entries to help debug
Intel IOMMUs.
Patches 1-3 do the ground work for the following patches by reorganizing
some Intel IOMMU data structures, creating a new
Hi Robin,
> > od = devm_kzalloc(&pdev->dev, sizeof(*od), GFP_KERNEL);
> > if (!od)
> > return -ENOMEM;
> >
> > pdev->dev.dma_parms = &od->dma_parms;
> > dma_set_max_seg_size(&pdev->dev, 0x3FFF);
> >
> > And that's all about handling dma_parms. So, on unbind, the m
On 11/09/18 17:30, Wolfram Sang wrote:
Hi all,
commit 78c47830a5cb ("dma-debug: check scatterlist segments") triggers
for Renesas hardware I look after, so thanks for pointing out we should
have proper dma_parms for our DMA providers.
When trying to fix it, I became a bit puzzled about the life
Setting up dma_parms seems not so trivial because it is easy to miss
that its pointer has the life cycle of its containing 'struct device'
while the allocation of dma_parms usually happens during the bind/unbind
life cycle. Which can lead to dangling pointers.
If coding this correctly in drivers, t
We have our own DMA provider, so we should set the dma_parms properly.
Signed-off-by: Wolfram Sang
---
drivers/mmc/host/renesas_sdhi_internal_dmac.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
b/drivers/mmc/host/renesas_sdhi_internal_dmac.
Hi all,
commit 78c47830a5cb ("dma-debug: check scatterlist segments") triggers
for Renesas hardware I look after, so thanks for pointing out we should
have proper dma_parms for our DMA providers.
When trying to fix it, I became a bit puzzled about the life cycle of
the pointer to dma_parms. AFAIU
CC linux-renesas-soc
On Tue, Sep 11, 2018 at 5:01 PM jun qian wrote:
>
> As you are already in ISR, it is unnecessary to call spin_lock_irqsave.
>
> Signed-off-by: jun qian
> ---
> drivers/iommu/ipmmu-vmsa.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/i
As you are already in ISR, it is unnecessary to call spin_lock_irqsave.
Signed-off-by: jun qian
---
drivers/iommu/ipmmu-vmsa.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 22b94f8a9a04..afa23d53502c 100644
On Tue, Sep 11, 2018 at 02:40:43PM +0800, Kenneth Lee wrote:
> On Mon, Sep 10, 2018 at 11:33:59PM -0400, Jerome Glisse wrote:
> > On Tue, Sep 11, 2018 at 10:42:09AM +0800, Kenneth Lee wrote:
> > > On Mon, Sep 10, 2018 at 10:54:23AM -0400, Jerome Glisse wrote:
> > > > On Mon, Sep 10, 2018 at 11:28:0
From: Colin Ian King
Trivial fix to spelling mistake in variable name
Signed-off-by: Colin Ian King
---
drivers/iommu/fsl_pamu_domain.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index f089136e9c3f
Hi Heiko,
On 27/08/18 11:56, Heiko Stuebner wrote:
In the iommu's shutdown handler we disable runtime-pm which could
result in the irq-handler running unclocked and since commit
3fc7c5c0cff3 ("iommu/rockchip: Handle errors returned from PM framework")
we warn about that fact.
This can cause
On 27/08/18 09:47, Christoph Hellwig wrote:
> We can just use the default implementation.
>
> Signed-off-by: Christoph Hellwig
> ---
> arch/arm/include/asm/dma-mapping.h | 2 ++
> arch/arm/mm/dma-mapping-nommu.c| 4
> 2 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/ar
Hi Morimoto-san,
CC asoc, dma, iommu
On Tue, Sep 4, 2018 at 8:06 AM Kuninori Morimoto
wrote:
> Hi Renesas ML
> Cc Rob
>
> I noticed that Sound driver is using PIO mode
> on latest kernel.
>
> ...
> rcar_sound ec50.sound: src[0] : probe error -11
> rcar_sound ec50.
The patch adding the infrastructure failed to actually add the symbol
declaration, oops..
Fixes: faef87723a ("dma-noncoherent: add a arch_sync_dma_for_cpu_all hook")
Signed-off-by: Christoph Hellwig
---
kernel/dma/Kconfig | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/dma/Kconfig
On Mon, Sep 10, 2018 at 11:32 PM Rob Herring wrote:
>
> On Thu, 30 Aug 2018 20:15:40 +0530, Vivek Gautam wrote:
> > Add bindings doc for Qcom's smmu-v2 implementation.
> >
> > Signed-off-by: Vivek Gautam
> > Reviewed-by: Tomasz Figa
> > Tested-by: Srinivas Kandagatla
> > ---
> > .../devicetree
On Tue, Sep 11, 2018 at 08:46:36AM +0200, Christoph Hellwig wrote:
> On Mon, Sep 10, 2018 at 06:13:50PM +0200, Greg Kroah-Hartman wrote:
> > > +#if defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE) || \
> > > +defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU) || \
> > > +defined(CONFIG_ARCH_HAS_SYNC_DMA
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