Currently, the RemapEn (valid) bit is accidentally cleared when
programming IRTE w/ guestMode=0. It should be restored to
the prior state.
Signed-off-by: Suravee Suthikulpanit
---
drivers/iommu/amd/iommu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/amd/iommu.c b/drivers/
On 01/09/2020 22:33, Robin Murphy wrote:
> On 2020-08-26 07:32, Marek Szyprowski wrote:
>> The Documentation/DMA-API-HOWTO.txt states that the dma_map_sg() function
>> returns the number of the created entries in the DMA address space.
>> However the subsequent calls to the dma_sync_sg_for_{device,
Interrupt remapping IO_PAGE_FAULT has been observed under system w/
large number of VMs w/ pass-through devices. This can be reproduced with
64 VMs + 64 pass-through VFs of Mellanox MT28800 Family [ConnectX-5 Ex],
where each VM runs small-packet netperf test via the pass-through device
to the netse
On 2020-09-02 06:32, Torsten Hilbrich wrote:
After updating from v5.8 to v5.9-rc2 I noticed some problems when
booting a system with kernel cmdline "intel_iommu=on,igfx_off".
The following stacktrace was produced:
<6>[0.00] Command line: BOOT_IMAGE=/isolinux/bzImage console=tty1
intel_
On Tue, Sep 1, 2020 at 4:24 AM Christoph Hellwig wrote:
>
> I've applied this to the dma-mapping tree.
>
> I had to resolve a conflict in drivers/of/address.c with a recent
> mainline commit. I also applied the minor tweaks Andy pointed out
> plus a few more style changes. A real change is that
Hi Willy,
On 01.09.20 18:53, Matthew Wilcox wrote:
> On Tue, Sep 01, 2020 at 06:41:12PM +0200, Helge Deller wrote:
>>> I still have a zoo of machines running for such testing, including a
>>> 715/64 and two 730.
>>> I'm going to test this git tree on the 715/64:
>
> The 715/64 is a 7100LC machine
On 9/2/20 5:51 AM, Suravee Suthikulpanit wrote:
> When using 128-bit interrupt-remapping table entry (IRTE) (a.k.a GA mode),
> current driver disables interrupt remapping when it updates the IRTE
> so that the upper and lower 64-bit values can be updated safely.
>
> However, this creates a small w
On 9/2/20 5:51 AM, Suravee Suthikulpanit wrote:
> Currently, the RemapEn (valid) bit is accidentally cleared when
> programming IRTE w/ guestMode=0. It should be restored to
> the prior state.
>
Probably requires:
Fixes: b9fc6b56f478 ("iommu/amd: Implements irq_set_vcpu_affinity() hook to
setup
Compiler is not happy about one function prototype:
CC kernel/dma/swiotlb.o
kernel/dma/swiotlb.c:275:1: warning: no previous prototype for
‘swiotlb_late_init_with_default_size’ [-Wmissing-prototypes]
275 | swiotlb_late_init_with_default_size(size_t default_size)
| ^~~
Sparse is not happy about max_segment declaration:
CHECK kernel/dma/swiotlb.c
kernel/dma/swiotlb.c:96:14: warning: symbol 'max_segment' was not declared.
Should it be static?
Mark it static as suggested.
Signed-off-by: Andy Shevchenko
---
v2: no change
kernel/dma/swiotlb.c | 2 +-
1 fil
There is an extension to a %p to print phys_addr_t type of variables.
Use it here.
Signed-off-by: Andy Shevchenko
---
v2: dropped bytes replacement (Fabio)
kernel/dma/swiotlb.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
inde
On Mon, 24 Aug 2020 20:28:48 +0200
Jean-Philippe Brucker wrote:
> On Fri, Aug 21, 2020 at 09:35:12PM -0700, Jacob Pan wrote:
> > ioasid_set was introduced as an arbitrary token that are shared by a
> > group of IOASIDs. For example, if IOASID #1 and #2 are allocated
> > via the same ioasid_set*,
On Mon, 24 Aug 2020 11:30:47 -0700
Randy Dunlap wrote:
> On 8/24/20 11:28 AM, Jean-Philippe Brucker wrote:
> >> +/**
> >> + * struct ioasid_data - Meta data about ioasid
> >> + *
> >> + * @id: Unique ID
> >> + * @users Number of active users
> >> + * @state Track state of the IOASID
> >
On Tue, Sep 01, 2020 at 07:38:10PM +0200, Thomas Bogendoerfer wrote:
> On Tue, Sep 01, 2020 at 07:16:27PM +0200, Christoph Hellwig wrote:
> > Well, if IP22 doesn't speculate (which I'm pretty sure is the case),
> > dma_sync_single_for_cpu should indeeed be a no-op. But then there
> > also shouldn'
On Mon, 24 Aug 2020 11:34:29 -0700
Randy Dunlap wrote:
> On 8/24/20 11:28 AM, Jean-Philippe Brucker wrote:
> >> +/**
> >> + * struct ioasid_set - Meta data about ioasid_set
> >> + * @type: Token types and other features
> > nit: doesn't follow struct order
> >
> >> + * @token:Unique
-mapping.h | 36 ++
> kernel/dma/coherent.c | 10 +--
> kernel/dma/mapping.c | 66 +
> 23 files changed, 265 insertions(+), 115 deletions(-)
Apologies if this has already been reported or is known but this comm
; > kernel/dma/coherent.c | 10 +--
> > kernel/dma/mapping.c | 66 +
> > 23 files changed, 265 insertions(+), 115 deletions(-)
>
> Apologies if this has already been reported or is known but this com
| 9 ++-
> > > drivers/usb/core/usb.c| 7 +-
> > > include/linux/device.h| 4 +-
> > > include/linux/dma-direct.h| 8 +--
> > > include/linux/dma-mapping.h |
On 9/2/2020 3:38 PM, Nathan Chancellor wrote:
[snip]
Hello Nathan,
Can you tell me how much memory your RPI has and if all of it is
This is the 4GB version.
accessible by the PCIe device? Could you also please include the DTS
of the PCIe node? IIRC, the RPI firmware does some mangling o
rnel/git/torvalds/linux.git/tree/arch/arm/boot/dts/bcm2711.dtsi#n264
>
> and the resulting dma-ranges parsing is just not working for reasons to be
> determined.
> --
> Florian
Let me know if you need anything else out of me.
Cheers,
Nathan
device.dtb
Description: Binary dat
On Wed, Sep 2, 2020 at 2:31 PM Andy Shevchenko
wrote:
>
> There is an extension to a %p to print phys_addr_t type of variables.
> Use it here.
>
> Signed-off-by: Andy Shevchenko
> ---
> v2: dropped bytes replacement (Fabio)
Reviewed-by: Fabio Estevam
Hi Robin,
On 9/2/20 7:31 PM, Robin Murphy wrote:
On 2020-09-02 06:32, Torsten Hilbrich wrote:
After updating from v5.8 to v5.9-rc2 I noticed some problems when
booting a system with kernel cmdline "intel_iommu=on,igfx_off".
The following stacktrace was produced:
<6>[ 0.00] Command line
The dev_iommu_priv_set() must be called after probe_device(). This fixes
a NULL pointer deference bug when booting a system with kernel cmdline
"intel_iommu=on,igfx_off", where the dev_iommu_priv_set() is abused.
The following stacktrace was produced:
[0.00] Command line: BOOT_IMAGE=/isol
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