On Wed, 02 May 2018 04:12:02 +0200,
syzbot wrote:
>
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:fff75eb2a08c Merge tag 'errseq-v4.17' of
> git://git.kernel.o...
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?id=6530078334779392
> ke
Quoting Taniya Das (2018-04-30 22:03:33)
> @@ -45,15 +50,28 @@
>
> #define domain_to_gdsc(domain) container_of(domain, struct gdsc, pd)
>
> -static int gdsc_is_enabled(struct gdsc *sc, unsigned int reg)
> +static int gdsc_is_enabled(struct gdsc *sc, bool en)
> {
> + unsigned int reg;
>
On 2018/05/02 13:41, Mike Kravetz wrote:
> What is the reason for not charging pages at allocation/reserve time? I am
> not an expert in memcg accounting, but I would think the pages should be
> charged at allocation time. Otherwise, a task could allocate a large number
> of (reserved) pages that
On Tue, May 01, 2018 at 11:57:55AM +0200, Hans de Goede wrote:
> Hi,
>
> On 30-04-18 14:41, Heikki Krogerus wrote:
> > Trying to determine the USB port type with this mux is very
> > difficult. To simplify the situation, always allowing user
> > control, even if the port is USB Type-C port.
> >
>
On Mon, Apr 30, 2018 at 06:34:03AM -0700, Guenter Roeck wrote:
> On 04/30/2018 05:41 AM, Heikki Krogerus wrote:
> > Removing the "fusb302" debugfs directory when unloading
> > the driver. That allows the driver to be loaded more then
> > ones.
> >
> > This fixes an issue where the driver, if unloa
>>> On 02.05.18 at 03:56, wrote:
> At 04/27/2018 08:09 PM, Jan Beulich wrote:
>> I'm afraid I don't understand: Limiting the number of disabled CPUs is
>> certainly desirable when those can never be used, but why would you
>> want to do this when they might later get hotplugged? I'm not aware
>
>
Hi Punit,
Thanks for reviewing this series.
On 30/04/2018 20:47, Punit Agrawal wrote:
> Hi Laurent,
>
> One nitpick below.
>
> On Tue, Apr 17, 2018 at 3:33 PM, Laurent Dufour
> wrote:
>> This change is inspired by the Peter's proposal patch [1] which was
>> protecting the VMA using SRCU. Unfor
On Tue, May 01, 2018 at 02:31:31PM +0200, Mylène Josserand wrote:
> Now that a common function is available for CNTVOFF's
> initialization, let's convert shmobile-apmu code to use
> this function.
>
> Signed-off-by: Mylène Josserand
> Reviewed-by: Geert Uytterhoeven
> Tested-by: Geert Uytterhoev
Hi,
On 03/31/2018 08:33 AM, Dmitry Safonov wrote:
> Theoretically, on some machines faults might be generated faster than
> they're cleared by CPU.
Is this a real case?
> Let's limit the cleaning-loop by number of hw
> fault registers.
Will this cause the fault recording registers full of faul
2018-05-02 14:02 GMT+08:00 Chris Chiu :
> Some Asus laptops like UX550GE has hotkey (Fn+F7) for keyboard
> backlight toggle. In this UX550GE, the hotkey incremet the level
> of brightness for each keypress from 1 to 3, and then switch it
> off when the brightness has been the max. This commit inter
On Tue, May 01, 2018 at 02:05:51PM -0400, David Miller wrote:
> From: "Michael S. Tsirkin"
> Date: Tue, 1 May 2018 20:19:19 +0300
>
> > On Tue, May 01, 2018 at 11:28:22AM -0400, David Miller wrote:
> >> From: "Michael S. Tsirkin"
> >> Date: Fri, 27 Apr 2018 19:02:05 +0300
> >>
> >> > There's a
Hi Rob,
On Tue, May 1, 2018 at 9:49 PM, Rob Herring wrote:
>
> On Mon, Apr 30, 2018 at 05:10:45PM +0530, Jagan Teki wrote:
> > HDMI PHY on Allwinner A64 has similar like H3/H5.
> >
> > Signed-off-by: Jagan Teki
> > ---
> > Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt | 1 +
> >
Hello Stanimir,
On 2018-04-24 18:14, Stanimir Varbanov wrote:
Call session_continue for Venus 4xx version even when the event
says that the buffer resources are not sufficient. Leaving a
comment with more information about the workaround.
Signed-off-by: Stanimir Varbanov
---
drivers/media/pla
Hi !
I was playing with nbd on some little ARM bmc here with lockdep enabled and I
get the following report. I don't have the bandwidth to dig into it this week
to check if it's a false positive so I'm posting it here instead.
Cheers,
Ben.
# nbd-client pasglop /dev/nbd0
Warning: the oldstyle pr
On Tuesday, May 05/01/18, 2018 at 08:10:37 -0400, Josh Boyer wrote:
> On Wed, Apr 25, 2018 at 11:06 AM, Ganesh Goudar wrote:
> > Hi,
> >
> > Kindly pull the new firmware from the following URL.
> > git://git.chelsio.net/pub/git/linux-firmware.git for-upstream
> >
> > Thanks
> > Ganesh
> >
> > The
When using kdump, SOMETIMES the "size not consistent" warning message
shows up when the crash kernel boots with early_ioremap_debug parameter:
WARNING: CPU: 0 PID: 0 at ../mm/early_ioremap.c:182 early_iounmap+0x4f/0x12c()
early_iounmap(ff200180, 0118) [0] size not consistent 0120
On Mon, 30 Apr 2018, Larry Finger wrote:
> With kernel 4.17.0-rc3, I noted the following warning from driver i915.
>
> kernel: [ cut here ]
> kernel: Could not determine valid watermarks for inherited state
> kernel: WARNING: CPU: 3 PID: 224 at
> drivers/gpu/drm/i915/intel
On Tue, May 01, 2018 at 10:29:46PM -0700, Kees Cook wrote:
> On Tue, May 1, 2018 at 10:00 PM, Leo Yan wrote:
> > The driver prints pcsr twice: the first time it uses specifier %px to
> > print hexadecimal pcsr value and the second time uses specifier %pS for
> > output kernel symbols.
> >
> > As s
Hello Stanimir,
On 2018-04-24 18:14, Stanimir Varbanov wrote:
This adds suspend (power collapse) function with slightly
different order of calls comparing with Venus 3xx.
Signed-off-by: Stanimir Varbanov
---
drivers/media/platform/qcom/venus/hfi_venus.c | 52
+++
1 f
> On May 1, 2018, at 10:50 PM, Stephen Rothwell wrote:
>
> Hi Song,
>
> On Wed, 2 May 2018 04:40:20 + Song Liu wrote:
>>
>>> - CHECK(build_id_matches < 1, "build id match",
>>> - "Didn't find expected build ID from the map\n");
>>> + if (CHECK(build_id_matches < 1, "build id
Some Asus laptops like UX550GE has hotkey (Fn+F7) for keyboard
backlight toggle. In this UX550GE, the hotkey incremet the level
of brightness for each keypress from 1 to 3, and then switch it
off when the brightness has been the max. This commit interprets
the code 0xc7 generated from hotkey to KEY
Hi all,
On Wed, May 2, 2018 at 4:39 AM, Qu, Jim wrote:
> Hi ,
>
> If you are sure that the HW worked fine before. I think you should:
>
> 1. Be sure that HW works fine now.
> 2. recall the driver to the point at where it works well, and then replace
> them one by one to confirm component which c
On Wed, 2018-05-02 at 05:44 +, Pkshih wrote:
>
> > -Original Message-
> > From: João Paulo Rechi Vita [mailto:jprv...@gmail.com]
> > Sent: Wednesday, May 02, 2018 6:41 AM
> > To: Larry Finger
> > Cc: Steve deRosier; 莊彥宣; Pkshih; Birming Chiu; Shaofu; Steven Ting;
> > Chaoming_Li; Kall
For analysis purpose it is useful to have numa node information
corresponding mapped address ranges of the process. Currently
/proc//numa_maps provides list of numa nodes from where pages are
allocated per VMA of the process. This is not useful if an user needs to
determine which numa node the mapp
Hi Song,
On Wed, 2 May 2018 04:40:20 + Song Liu wrote:
>
> > - CHECK(build_id_matches < 1, "build id match",
> > - "Didn't find expected build ID from the map\n");
> > + if (CHECK(build_id_matches < 1, "build id match",
> > - "Didn't find expected build ID from the map
On 2 May 2018 at 13:23, Wolfram Sang wrote:
>
>> > We should maybe handle this in the core somewhen, though. Or?
>>
>> Thanks. Yes, It will more helpful if we can handle this in the i2c core.
>
> To understand the issue better: which kind of devices in your system
> still send I2C transfers when t
On Mon, 30 Apr 2018 18:23:21 +0300
Dan Carpenter wrote:
> On Mon, Apr 30, 2018 at 07:59:16PM +0530, Ajay Singh wrote:
> > Reviewed-by: Ajay Singh
> >
> > On Mon, 30 Apr 2018 07:50:40 -0500
> > "Gustavo A. R. Silva" wrote:
> >
> > > If i < slot_id is initially true then it will remain true.
> -Original Message-
> From: João Paulo Rechi Vita [mailto:jprv...@gmail.com]
> Sent: Wednesday, May 02, 2018 6:41 AM
> To: Larry Finger
> Cc: Steve deRosier; 莊彥宣; Pkshih; Birming Chiu; Shaofu; Steven Ting;
> Chaoming_Li; Kalle Valo;
> linux-wireless; Network Development; LKML; Daniel Dr
Any comment for this patch ?
On Tue, Apr 17, 2018 at 7:45 PM, Souptick Joarder wrote:
> Use new return type vm_fault_t for fault handler. For
> now, this is just documenting that the function returns
> a VM_FAULT value rather than an errno. Once all instances
> are converted, vm_fault_t will beco
On 28-04-18, 10:05, Arvind Yadav wrote:
> Replace the manual validity checks for the GPIO with the
> gpio_is_valid().
>
> Signed-off-by: Arvind Yadav
> ---
> chnage in v2 :
> Returning invalid gpio as error instead of -ENODEV.
>
> drivers/staging/greybus/arche-platform.c | 6 +++---
On 2018-04-30 20:43, Sinan Kaya wrote:
> On 4/30/2018 2:40 PM, Bjorn Helgaas wrote:
>> On Sat, Apr 28, 2018 at 09:28:47AM +0200, Jan Kiszka wrote:
>>> On 2018-04-28 00:24, Bjorn Helgaas wrote:
On Tue, Apr 24, 2018 at 05:13:39PM +0200, Jan Kiszka wrote:
> From: Jan Kiszka
>
> of_pc
On Tue, May 1, 2018 at 9:14 PM, Linus Torvalds
wrote:
> On Tue, May 1, 2018 at 9:00 PM Dan Williams
> wrote:
>> >
>> > I have some dim memory of "rep movs doesn't work well for pmem", but
> does
>> > it *seriously* need unrolling to cacheline boundaries? And if it does,
> who
>> > designed it, a
On 30-04-18, 15:48, Colin King wrote:
> From: Colin Ian King
>
> Trivial fix to spelling mistake in s3c_freq_dbg debug message text.
>
> Signed-off-by: Colin Ian King
> ---
> drivers/cpufreq/s3c2440-cpufreq.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/cpu
On Tue, May 1, 2018 at 10:00 PM, Leo Yan wrote:
> The driver prints pcsr twice: the first time it uses specifier %px to
> print hexadecimal pcsr value and the second time uses specifier %pS for
> output kernel symbols.
>
> As suggested by Kees, using %pS should be sufficient and %px isn't
> necess
> > We should maybe handle this in the core somewhen, though. Or?
>
> Thanks. Yes, It will more helpful if we can handle this in the i2c core.
To understand the issue better: which kind of devices in your system
still send I2C transfers when the system is going to suspend? Do you
know?
signat
From: Doug Oucahrek
cmid will be destroyed at OFED if kiblnd_cm_callback return error.
if error happen before the end of kiblnd_connect_peer, it will touch
destroyed cmid and fail as
(o2iblnd_cb.c:1315:kiblnd_connect_peer())
ASSERTION( cmid->device != ((void *)0) ) failed:
Signed-off
On 05/01/2018 12:01 AM, Marek Marczykowski-Górecki wrote:
Make local copy of the response, otherwise backend might modify it while
frontend is already processing it - leading to time of check / time of
use issue.
This is complementary to XSA155.
Cc: sta...@vger.kernel.org
Signed-off-by: Marek M
On 5/1/2018 6:49 PM, Peter Zijlstra wrote:
On 5/1/2018 5:01 PM, Peter Zijlstra wrote:
Let me ponder what the best solution is, it's a bit of a mess.
So there's:
- TASK_PARKED, which we can make a special state; this solves the
problem because then wait_task_inactive() is guaranteed
On Tue, May 1, 2018 at 5:42 PM, Zumeng Chen wrote:
> diff --git a/drivers/net/ethernet/broadcom/tg3.h
> b/drivers/net/ethernet/broadcom/tg3.h
> index 3b5e98e..c61d83c 100644
> --- a/drivers/net/ethernet/broadcom/tg3.h
> +++ b/drivers/net/ethernet/broadcom/tg3.h
> @@ -3102,6 +3102,7 @@ enum TG3_F
On Wednesday 02 May 2018 07:22 AM, David Lechner wrote:
> Sekhar,
>
> On 04/27/2018 09:05 AM, Rob Herring wrote:
>> On Thu, Apr 26, 2018 at 07:17:42PM -0500, David Lechner wrote:
>>> This adds new device tree bindings for the timer IP block of TI
>>> DaVinci-like SoCs.
>>>
>>> Signed-off-by: David
Hi,
On Tue, May 1, 2018 at 8:04 PM, William Wu wrote:
> If isoc split in transfer with no data (the length of DATA0
> packet is zero), we can't simply return immediately. Because
> the DATA0 can be the first transaction or the second transaction
> for the isoc split in transaction. If the DATA0 p
The driver prints pcsr twice: the first time it uses specifier %px to
print hexadecimal pcsr value and the second time uses specifier %pS for
output kernel symbols.
As suggested by Kees, using %pS should be sufficient and %px isn't
necessary; the reason is if the pcsr is a kernel space address, we
The FastReg support in ko2iblnd was not unmapping pool items
causing the items to leak. In addition, the mapping code
is not growing the pool like we do with FMR.
This patch makes sure we are unmapping FastReg pool elements
when we are done with them. It also makes sure the pool
will grow when w
Hi,
On 05/01/2018 05:24 PM, Liu, Yi L wrote:
>> From: Lu Baolu [mailto:baolu...@linux.intel.com]
>> Sent: Tuesday, April 17, 2018 11:03 AM
>>
>> The previous per iommu pasid table alloc/free interfaces
>> are no longer used. Clean up the driver by removing it.
> I think this patch major cleans int
On 05/01/2018 06:19 PM, TSUKADA Koutaro wrote:
> If nr_overcommit_hugepages is assumed to be infinite, allocating pages for
> hugetlb's overcommit from buddy pool is all unlimited even if being limited
> by memcg. The purpose of this patch is that if we allocate the hugetlb page
> from the boddy po
> On May 1, 2018, at 7:09 PM, Stephen Rothwell wrote:
>
> Hi all,
>
> Today's linux-next merge of the bpf-next tree got a conflict in:
>
> tools/testing/selftests/bpf/test_progs.c
>
> between commit:
>
> a4e21ff8d9a3 ("bpf: minor fix to selftest test_stacktrace_build_id()")
>
> from the
Hi,
On 05/01/2018 05:23 PM, Liu, Yi L wrote:
>> From: Lu Baolu [mailto:baolu...@linux.intel.com]
>> Sent: Tuesday, April 17, 2018 11:03 AM
>>
>> This patch replaces current per iommu pasid table with
>> the new added per domain pasid table. Each svm-capable
>> PCI device will have its own pasid ta
Hi,
On Tue, May 1, 2018 at 8:04 PM, William Wu wrote:
> The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in
> a more supported way") rips out a lot of code to simply the
> allocation of aligned DMA. However, it also introduces a new
> issue when use isoc split in transfer.
>
> In my tes
On Sat, Apr 28, 2018 at 12:57:54PM -0700, Moritz Fischer wrote:
> Request IRQ with IRQF_SHARED flag to enable setups with multiple
> instances of the core sharing a single IRQ line.
> This works out since the IRQ handler already checks if there is
> an actual IRQ pending and returns IRQ_NONE otherw
On Tue, May 01, 2018 at 10:02:30PM +, Sasha Levin wrote:
> On Tue, May 01, 2018 at 04:54:48PM -0400, Theodore Y. Ts'o wrote:
> >Post -rc3 or -rc4, in my opinion bug fixes should wait until the next
> >merge window before they get merged at all. (And certainly features
> >bugs should be Right O
On Sat, Apr 28, 2018 at 05:50:58PM -0400, Frank Mori Hess wrote:
> This reverts commit 88987d2c7534a0269f567fb101e6d71a08f0f01d.
>
> The pl330.c pause implementation violates the dmaengine requirement
> for no data loss, since it relies on the DMAKILL
> instruction. However, DMAKILL discards in-f
On Sat, Apr 28, 2018 at 11:03:52PM +0100, Colin King wrote:
> From: Colin Ian King
>
> Trivial fix to spelling mistake in dev_err error message text and make
> channel plural.
Applied, thanks
--
~Vinod
On Tue, May 1, 2018 at 9:00 PM Dan Williams
wrote:
> >
> > I have some dim memory of "rep movs doesn't work well for pmem", but
does
> > it *seriously* need unrolling to cacheline boundaries? And if it does,
who
> > designed it, and why is anybody using it?
> >
> I think this is an FAQ from the
OPA driver optimizations are based on the MPI model where it is
expected to have multiple endpoints between two given nodes. To
enable this optimization for Lustre, we need to make it possible,
via an LND-specific tuneable, to create multiple endpoints and to
balance the traffic over them.
Both si
From: Sean Wang
MT7622_POWER_DOMAIN_WB doesn't send an ACK when its managed SRAM becomes
stable, which is not like the behavior the other power domains should
have. Therefore, it's necessary for such a power domain to have a fixed
and well-predefined duration to wait until its managed SRAM can be
On Tue, May 1, 2018 at 8:33 PM, Linus Torvalds
wrote:
> On Tue, May 1, 2018 at 8:22 PM Dan Williams
> wrote:
>
>> All that to say that having a typical RAM page covering poisoned pmem
>> would complicate the 'clear badblocks' implementation.
>
> Ugh, ok.
>
> I guess the good news is that your pat
On Tue, 1 May 2018 10:10:51 +0100
Suzuki K Poulose wrote:
> Convert component enable/disable messages from dev_info to dev_dbg.
> This is required to prevent LOCKDEP splats when operating in perf
> mode where we could be called with locks held to enable a coresight
Can we see the splats? Doesn'
Hi Mathieu: this work looks very cool. See inline.
On Mon, Apr 30, 2018 at 3:48 PM Mathieu Desnoyers <
mathieu.desnoy...@efficios.com> wrote:
> Hi,
> Here is an updated RFC round of the Restartable Sequences patchset
> based on kernel 4.17-rc3. Based on feedback from Linus, I'm introducing
> onl
Hi, Matthias
On Wed, 2018-05-02 at 11:41 +0800, sean.w...@mediatek.com wrote:
> From: Ryder Lee
>
> Add audio device nodes and its proper setup for all used pins
>
> Signed-off-by: Ryder Lee
> Signed-off-by: Sean Wang
> ---
> arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts | 11 +++-
> arch/arm
On 2018年04月25日 13:15, Tiwei Bie wrote:
Hello everyone,
This RFC implements packed ring support in virtio driver.
Some simple functional tests have been done with Jason's
packed ring implementation in vhost:
https://lkml.org/lkml/2018/4/23/12
Both of ping and netperf worked as expected (with
From: Ryder Lee
Add audio device nodes and its proper setup for all used pins
Signed-off-by: Ryder Lee
Signed-off-by: Sean Wang
---
arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts | 11 +++-
arch/arm64/boot/dts/mediatek/mt7622.dtsi | 89
2 files changed, 98 inser
From: Sean Wang
add High-Speed DMA (HSDMA) nodes
Signed-off-by: Sean Wang
---
arch/arm64/boot/dts/mediatek/mt7622.dtsi | 10 ++
1 file changed, 10 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
index e9d5130..6bbabb6 100
Colin,
> Trivial fix to spelling mistake in module parameter description text
Ditto. Also hand-applied to 4.18/scsi-queue.
--
Martin K. Petersen Oracle Linux Engineering
Colin,
> Trivial fix to spelling mistake in module parameter description text
Mangled patch. Applied by hand.
--
Martin K. Petersen Oracle Linux Engineering
On Tue, May 1, 2018 at 8:22 PM Dan Williams
wrote:
> All that to say that having a typical RAM page covering poisoned pmem
> would complicate the 'clear badblocks' implementation.
Ugh, ok.
I guess the good news is that your patches aren't so big, and don't really
affect anything else.
But can
Colin,
> Trivial fix to spelling mistake in module description text
Applied to 4.18/scsi-queue.
--
Martin K. Petersen Oracle Linux Engineering
Colin,
> The sanity check on u->in_connection_align_insertion_frequency is
> being performed twice and hence the first check can be removed since
> it is redundant. Cleans up cppcheck warning:
>
> drivers/scsi/ibmvscsi/ibmvscsi.c:1711: (warning) Identical inner 'if'
> condition is always true.
A
Hi Wolfram,
On 27 April 2018 at 20:14, Wolfram Sang wrote:
> On Mon, Apr 09, 2018 at 02:40:54PM +0800, Baolin Wang wrote:
>> Add one flag to indicate if the i2c controller has been in suspend state,
>> which can prevent i2c accesses after i2c controller is suspended following
>> system suspend.
>
On Tue, May 1, 2018 at 8:20 PM, Dan Williams wrote:
> On Tue, May 1, 2018 at 8:13 PM, Linus Torvalds
> wrote:
>> On Tue, May 1, 2018 at 8:03 PM Dan Williams
>> wrote:
>>
>>> Because dax. There's no page cache indirection games we can play here
>>> to poison a page and map in another page. The ma
On Tue, May 1, 2018 at 8:13 PM, Linus Torvalds
wrote:
> On Tue, May 1, 2018 at 8:03 PM Dan Williams
> wrote:
>
>> Because dax. There's no page cache indirection games we can play here
>> to poison a page and map in another page. The mapped page is 1:1
>> associated with the filesystem block and p
On Tue, May 1, 2018 at 8:03 PM Dan Williams
wrote:
> Because dax. There's no page cache indirection games we can play here
> to poison a page and map in another page. The mapped page is 1:1
> associated with the filesystem block and physical memory address.
I'm not talking page cache indirection
If isoc split in transfer with no data (the length of DATA0
packet is zero), we can't simply return immediately. Because
the DATA0 can be the first transaction or the second transaction
for the isoc split in transaction. If the DATA0 packet with no
data is in the first transaction, we can return im
Hi,
On 05/01/2018 05:22 PM, Liu, Yi L wrote:
>> From: Lu Baolu [mailto:baolu...@linux.intel.com]
>> Sent: Tuesday, April 17, 2018 11:03 AM
>>
>> This patch allocates PASID table for a domain at the time when
>> it is being created (if any devices using this domain supports
>> PASID feature), and f
This patch introduces compat_id support to fpga manager, it adds
a fpga_compat_id pointer to fpga manager data structure to allow
fpga manager drivers to save the compatibility id. This compat_id
could be used for compatibility checking before doing partial
reconfiguration to associated fpga region
Hi Yi,
Thank you very much for reviewing my patches.
On 05/01/2018 05:22 PM, Liu, Yi L wrote:
>> From: Lu Baolu [mailto:baolu...@linux.intel.com]
>> Sent: Tuesday, April 17, 2018 11:03 AM
>>
>> This patch adds the interfaces for per domain pasid table
>> management. Currently we allocate one pasi
Device Feature List (DFL) defines a feature list structure that creates
a link list of feature headers within the MMIO space to provide an
extensible way of adding features. This patch introduces a kernel module
to provide basic infrastructure to support FPGA devices which implement
the Device Feat
This patch adds region_id to fpga_image_info data structure, it
allows driver to pass region id information to fpga-mgr via
fpga_image_info for fpga reconfiguration function.
Signed-off-by: Wu Hao
Acked-by: Moritz Fischer
Acked-by: Alan Tull
---
v3: add one line comment for region_id
v4: add Ac
For feature devices, we need a method to find the port dedicated
to the device. This patch adds a function dfl_fpga_cdev_find_port
for this purpose. e.g FPGA Management Engine (FME) Partial
Reconfiguration sub feature, it uses this function to find
dedicated port on the device for PR function imple
This patch adds status sysfs interface for fpga manager, it's a
read only interface which allows user to get fpga manager status,
including full/partial reconfiguration error and other status
information. It adds a status callback to fpga_manager_ops too,
allows each fpga_manager driver to define i
For feature devices drivers, both the FPGA Management Engine (FME) and
Accelerated Function Unit (AFU) driver need to expose user interfaces via
the device file, for example, mmap and ioctls.
This patch adds chardev support in the dfl driver for feature devices,
FME and AFU. It reserves the charde
In some cases, other DFL driver modules may need to access some port
operations, e.g disable / enable port for partial reconfiguration in
FME module. In order to avoid dependency between port and FME modules,
this patch introduces the dfl_fpga_port_ops support in DFL framework.
A global dfl_fpga_po
From: Kang Luwei
The FPGA Management Engine (FME) provides power, thermal management,
performance counters, partial reconfiguration and other functions. For each
function, it is packaged into a private feature linked to the FME feature
device in the 'Device Feature List'. It's a platform device c
This patch adds one common function in DFL framework. It uses
port_ops get_id callback to get port id and compare it with given
value. This function could be used as match function of the
dfl_fpga_cdev_find_port function.
Signed-off-by: Wu Hao
---
drivers/fpga/dfl.c | 22 ++
This patch fix dma unaligned problem and data lost problem for
isoc split in transfer.
Test on rk3288 platform, use an usb hs Hub (GL852G-12) and an usb
fs audio device (Plantronics headset) to capture and playback.
William Wu (2):
usb: dwc2: alloc dma aligned buffer for isoc split in
usb: dw
The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in
a more supported way") rips out a lot of code to simply the
allocation of aligned DMA. However, it also introduces a new
issue when use isoc split in transfer.
In my test case, I connect the dwc2 controller with an usb hs
Hub (GL852G-12
> d_splice_alias() can return an ERR_PTR().
> If it does while debugging is enabled, the following
> CDEBUG() will dereference that error and crash.
>
> So add appropriate checking, and provide a separate
> debug message for the error case.
Yeah!!! It fixed the issues. Thank you.
Reviewed-by: J
From: Kang Luwei
The Header Register set is always present for FPGA Management Engine (FME),
this patch implements init and uinit function for header sub feature and
introduces several read-only sysfs interfaces for the capability and
status.
Sysfs interfaces:
* /sys/class/fpga_region///ports_nu
> This data structure only needs to be public so that
> various modules can access a wait queue to wait for object
> destruction.
> If we provide a function to get the wait queue, rather than the
> whole bucket, the structure can be made private.
>
> Signed-off-by: NeilBrown
> ---
> drivers/sta
This patch adds compat_id support to fme manager driver, it
reads the ID from the hardware register. And it could be used
for compatibility check before partial reconfiguration.
Signed-off-by: Wu Hao
---
drivers/fpga/dfl-fme-mgr.c | 15 +++
1 file changed, 15 insertions(+)
diff --gi
This patch adds fpga region platform driver for FPGA Management Engine.
It register an fpga region with given fpga manager / bridge device.
Signed-off-by: Tim Whisonant
Signed-off-by: Enno Luebbers
Signed-off-by: Shiva Rao
Signed-off-by: Christopher Rauer
Signed-off-by: Wu Hao
Acked-by: Alan
From: Kang Luwei
Partial Reconfiguration (PR) is the most important function for FME. It
allows reconfiguration for given Port/Accelerated Function Unit (AFU).
It creates platform devices for fpga-mgr, fpga-regions and fpga-bridges,
and invokes fpga-region's interface (fpga_region_program_fpga)
This patch registers the port ops into the global list in the DFL
framework, and it allows other modules to use the port ops. And
This patch includes the implementation of the get_id and enable_set
ops too.
Signed-off-by: Wu Hao
---
drivers/fpga/dfl-afu-main.c | 122 +
The port header register set is always present for port, it is mainly
for capability, control and status of the ports that AFU connected to.
This patch implements header sub feature support. Below user interfaces
are created by this patch.
Sysfs interface:
* /sys/class/fpga_region///id
Read-onl
This patch adds fpga bridge platform driver for FPGA Management Engine.
It implements the enable_set callback for fpga bridge.
Signed-off-by: Tim Whisonant
Signed-off-by: Enno Luebbers
Signed-off-by: Shiva Rao
Signed-off-by: Christopher Rauer
Signed-off-by: Wu Hao
Acked-by: Alan Tull
Acked-b
From: Xiao Guangrong
User Accelerated Function Unit sub feature exposes the MMIO region of
the AFU. After valid PR bitstream is programmed and the port is enabled,
then this MMIO region could be accessed.
This patch adds support to enumerate the AFU MMIO region and expose it
to userspace via mma
On DFL FPGA devices, the Accelerated Function Unit (AFU), can be
reprogrammed for different functions. It connects to the FPGA
infrastructure (static FPGA region) via a Port. Port CSRs are
implemented separately from the AFU CSRs to provide control and
status of the Port. Once valid PR bitstream is
DFL_FPGA_GET_API_VERSION and DFL_FPGA_CHECK_EXTENSION ioctls are common
ones which need to be supported by all feature devices drivers including
FME and AFU. This patch implements above 2 ioctls in FPGA Accelerated
Function Unit (AFU) driver.
Signed-off-by: Tim Whisonant
Signed-off-by: Enno Luebb
DMA memory regions are required for Accelerated Function Unit (AFU) usage.
These two ioctls allow user space applications to map user memory regions
for dma, and unmap them after use. Iova is returned from driver to user
space application via DFL_FPGA_PORT_DMA_MAP ioctl. Application needs to unmap
On Tue, May 1, 2018 at 7:53 PM, Linus Torvalds
wrote:
> On Tue, May 1, 2018 at 7:26 PM Dan Williams
> wrote:
>
>> Right, but the only way to make MCE non-fatal is to teach the machine
>> check handler about recoverable conditions. This patch teaches the
>> machine check handler how to recover cop
The Device Feature List (DFL) is implemented in MMIO, and features
are linked via the DFLs. This patch enables pcie driver to prepare
enumeration information (e.g locations of all device feature lists
in MMIO) and use common APIs provided by the Device Feature List
framework to enumerate each featu
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