accel/habanalabs: use device-name directory in debugfs-driver-habanalabs

The device debugfs directory was modified to be named as the parent
device name.
Update the description of 'mmu' and 'mmu_err

accel/habanalabs: use device-name directory in debugfs-driver-habanalabs

The device debugfs directory was modified to be named as the parent
device name.
Update the description of 'mmu' and 'mmu_error' to use the new path.

Signed-off-by: Tomer Tayar <[email protected]>
Reviewed-by: Ofir Bitton <[email protected]>
Signed-off-by: Ofir Bitton <[email protected]>

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accel/habanalabs: expose server type in debugfs

Exposing server type through debugfs to enable easier access via
scripts.

Signed-off-by: Tal Risin <[email protected]>
Reviewed-by: Ofir Bitton <obitt

accel/habanalabs: expose server type in debugfs

Exposing server type through debugfs to enable easier access via
scripts.

Signed-off-by: Tal Risin <[email protected]>
Reviewed-by: Ofir Bitton <[email protected]>
Signed-off-by: Ofir Bitton <[email protected]>

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accel/habanalabs: update debugfs-driver-habanalabs with the device-name directory

The device debugfs directory was modified to be named as the
parent device name.
Update the paths accordingly.

Sign

accel/habanalabs: update debugfs-driver-habanalabs with the device-name directory

The device debugfs directory was modified to be named as the
parent device name.
Update the paths accordingly.

Signed-off-by: Tomer Tayar <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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accel/habanalabs: update debugfs-driver-habanalabs with the accel path

Replace "/sys/kernel/debug/habanalabs/hl<n>/..." with
"/sys/kernel/debug/accel/<n>/...".

Signed-off-by: Tomer Tayar <ttayar@ha

accel/habanalabs: update debugfs-driver-habanalabs with the accel path

Replace "/sys/kernel/debug/habanalabs/hl<n>/..." with
"/sys/kernel/debug/accel/<n>/...".

Signed-off-by: Tomer Tayar <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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Documentation/ABI: Fix typos

Fix typos in Documentation/ABI. The changes are in descriptions or
comments where they shouldn't affect use of the ABIs.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.

Documentation/ABI: Fix typos

Fix typos in Documentation/ABI. The changes are in descriptions or
comments where they shouldn't affect use of the ABIs.

Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Randy Dunlap <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>

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habanalabs: add an option to control watchdog timeout via debugfs

Add an option to control the timeout value for the driver's watchdog
of the reset process. The timeout represents the amount of the

habanalabs: add an option to control watchdog timeout via debugfs

Add an option to control the timeout value for the driver's watchdog
of the reset process. The timeout represents the amount of the user
has to close his process once he gets a device reset notification from
the driver.

Signed-off-by: Tomer Tayar <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: expose only valid debugfs nodes

In case security is enabled on the device, some debugfs nodes will
fail. Hence, we do not expose them.

Signed-off-by: Ofir Bitton <[email protected]>
Rev

habanalabs: expose only valid debugfs nodes

In case security is enabled on the device, some debugfs nodes will
fail. Hence, we do not expose them.

Signed-off-by: Ofir Bitton <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: add gaudi2 asic-specific code

Add the ASIC-specific code for Gaudi2. Supply (almost) all of the
function callbacks that the driver's common code need to initialize,
finalize and submit w

habanalabs: add gaudi2 asic-specific code

Add the ASIC-specific code for Gaudi2. Supply (almost) all of the
function callbacks that the driver's common code need to initialize,
finalize and submit workloads to the Gaudi2 ASIC.

It also contains the code to initialize the F/W of the Gaudi2 ASIC
and to receive events from the F/W.

It contains new debugfs entry to dump razwi events. razwi is a case
where the device's engines create a transaction that reaches an
invalid destination.

Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs/gaudi: use memory_scrub_val from debugfs

In the callback scrub_device_mem, use 'memory_scrub_val'
from debugfs for the scrubbing value.

Signed-off-by: Dafna Hirschfeld <dhirschfeld@haban

habanalabs/gaudi: use memory_scrub_val from debugfs

In the callback scrub_device_mem, use 'memory_scrub_val'
from debugfs for the scrubbing value.

Signed-off-by: Dafna Hirschfeld <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: add device memory scrub ability through debugfs

Add the ability to scrub the device memory with a given value.
Add file 'dram_mem_scrub_val' to set the value
and a file 'dram_mem_scrub'

habanalabs: add device memory scrub ability through debugfs

Add the ability to scrub the device memory with a given value.
Add file 'dram_mem_scrub_val' to set the value
and a file 'dram_mem_scrub' to scrub the dram.

This is very important to help during automated tests, when you want
the CI system to randomize the memory before training certain
DL topologies.

Signed-off-by: Dafna Hirschfeld <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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habanalabs/gaudi: add debugfs to fetch internal sync status

When Gaudi device is secured the monitors data in the configuration
space is blocked from PCI access.
As we need to enable user to get syn

habanalabs/gaudi: add debugfs to fetch internal sync status

When Gaudi device is secured the monitors data in the configuration
space is blocked from PCI access.
As we need to enable user to get sync-manager monitors registers when
debugging, this patch adds a debugfs that dumps the information to a
binary file (blob).
When a root user will trigger the dump, the driver will send request to
the f/w to fill a data structure containing dump of all monitors
registers.

Signed-off-by: Ohad Sharabi <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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habanalabs: enable stop-on-error debugfs setting per ASIC

On Goya and Gaudi, the stop-on-error configuration can be set via
debugfs. However, in future devices, this configuration will always be
ena

habanalabs: enable stop-on-error debugfs setting per ASIC

On Goya and Gaudi, the stop-on-error configuration can be set via
debugfs. However, in future devices, this configuration will always be
enabled.
Modify the debugfs node to be allowed only for ASICs that support this
dynamic configuration.

Signed-off-by: Tomer Tayar <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs/gaudi: disable CGM permanently

Due to the need of SynapseAI to configure all TPC engines from a single
QMAN, the driver must disable CGM and never allow the user to enable
it. Otherwise,

habanalabs/gaudi: disable CGM permanently

Due to the need of SynapseAI to configure all TPC engines from a single
QMAN, the driver must disable CGM and never allow the user to enable
it. Otherwise, the configuration of the TPC engines will fail.

Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: align debugfs documentation to alphabetical order

Move an entry in the debugfs documentation to align with the
alphabetical order which is kept this file.

Signed-off-by: Tomer Tayar <tt

habanalabs: align debugfs documentation to alphabetical order

Move an entry in the debugfs documentation to align with the
alphabetical order which is kept this file.

Signed-off-by: Tomer Tayar <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: debugfs support for larger I2C transactions

I2C debugfs support is limited to 1 byte. We extend functionality
to more than 1 byte by using one of the pad fields as a length.
No backward

habanalabs: debugfs support for larger I2C transactions

I2C debugfs support is limited to 1 byte. We extend functionality
to more than 1 byte by using one of the pad fields as a length.
No backward compatibility issues as new F/W versions will treat 0
length as a 1 byte length transaction.

Signed-off-by: Ofir Bitton <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: add debugfs node for configuring CS timeout

Command submission timeout is currently determined during driver
loading time. As some environments requires this timeout to be
modified in ru

habanalabs: add debugfs node for configuring CS timeout

Command submission timeout is currently determined during driver
loading time. As some environments requires this timeout to be
modified in runtime, we introduce a new debugfs node that controls
the timeout value without the need to reload the driver.

Signed-off-by: Ofir Bitton <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: add userptr_lookup node in debugfs

It is useful to have the ability to see which user address was pinned
to which physical address during the initial mapping. We already have
all that in

habanalabs: add userptr_lookup node in debugfs

It is useful to have the ability to see which user address was pinned
to which physical address during the initial mapping. We already have
all that info stored, but no means to search this data (which may be
quite large).

Signed-off-by: Yuri Nudelman <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: expose state dump

To improve the user's ability to debug the case where a workload that
is part of executing training/inference of a topology is getting stuck,
we need to add a 'core dum

habanalabs: expose state dump

To improve the user's ability to debug the case where a workload that
is part of executing training/inference of a topology is getting stuck,
we need to add a 'core dump' each time a CS times-out. The 'core dump'
shall contain all relevant Sync Manager information and corresponding
fence values.

The most recent dumps shall be accessible via debugfs, under
'state_dump' node. Reading from the node will provide the oldest dump
available. Writing an integer value X will discard X dumps, starting
with the oldest one, i.e. subsequent read will now return newer
dumps.

Signed-off-by: Yuri Nudelman <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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debugfs: add skip_reset_on_timeout option

To be able to debug long-running CS better, without changing the
userspace code, we are adding a new option through debugfs interface
to skip the reset of t

debugfs: add skip_reset_on_timeout option

To be able to debug long-running CS better, without changing the
userspace code, we are adding a new option through debugfs interface
to skip the reset of the device in case of CS timeout.

Signed-off-by: Yuri Nudelman <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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docs: typo fixes in Documentation/ABI/

Fix the following typos in the Documentation/ABI/ directory:

- In file obsolete/sysfs-cpuidle, change "obselete" for "obsolete".

- In file removed/sysfs-kern

docs: typo fixes in Documentation/ABI/

Fix the following typos in the Documentation/ABI/ directory:

- In file obsolete/sysfs-cpuidle, change "obselete" for "obsolete".

- In file removed/sysfs-kernel-uids, change "propotional" for "proportional".

- In directory stable/, fix the following words: "associtated" for "associated",
"hexidecimal" for "hexadecimal", "vlue" for "value", "csed" for "caused" and
"wrtie" for "write". This updates a total of five files.

- In directory testing/, fix the following words: "subystem" for "subsystem",
"isochrnous" for "isochronous", "Desctiptors" for "Descriptors", "picutre" for
"picture", "capture" for "capture", "occured" for "ocurred", "connnected" for
"connected","agressively" for "aggressively","manufacturee" for "manufacturer"
and "transaction" for "transaction", "malformatted" for "incorrectly formated"
,"internel" for "internal", "writtento" for "written to", "specificed" for
"specified", "beyound" for "beyond", "Symetric" for "Symmetric". This updates
a total of eleven files.

Signed-off-by: Carlos Bilbao <[email protected]>
Reviewed-by: Randy Dunlap <[email protected]>
Reviewed-by: Mauro Carvalho Chehab <[email protected]>
Link: https://lore.kernel.org/r/5710038.lOV4Wx5bFT@iron-maiden
Signed-off-by: Jonathan Corbet <[email protected]>

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habanalabs/gaudi: add debugfs to DMA from the device

When trying to debug program, the user often needs to
dump large parts of the device's DRAM, which can reach to tens of GBs.
Because reading from

habanalabs/gaudi: add debugfs to DMA from the device

When trying to debug program, the user often needs to
dump large parts of the device's DRAM, which can reach to tens of GBs.
Because reading from the device's internal memory through the PCI BAR
is extremely slow, the debug can take hours.

Instead, we can provide the user to copy data through one of the DMA
engines. This will make the operation much faster.

Currently, only GAUDI is supported.

In GAUDI, we need to find a PCI DMA engine that is IDLE and set the
DMA as secured to be able to bypass our MMU as we currently don't
map the temporary buffer to the MMU.

Example bash one-line to dump entire HBM to file (~2 minutes):

for (( i=0x0; i < 0x800000000; i+=0x8000000 )); do \
printf '0x%x\n' $i | sudo tee /sys/kernel/debug/habanalabs/hl0/addr ; \
echo 0x8000000 | sudo tee /sys/kernel/debug/habanalabs/hl0/dma_size ; \
sudo cat /sys/kernel/debug/habanalabs/hl0/data_dma >> hbm.txt ; done

Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: support HW blocks vm show

Improve "vm" debugfs node to print also the virtual addresses which are
currently mapped to HW blocks in the device.

Signed-off-by: Sagiv Ozeri <sozeri@habana.

habanalabs: support HW blocks vm show

Improve "vm" debugfs node to print also the virtual addresses which are
currently mapped to HW blocks in the device.

Signed-off-by: Sagiv Ozeri <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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habanalabs: update email address in sysfs/debugfs docs

Use my kernel.org address for contact point instead of my private email
address.

Signed-off-by: Oded Gabbay <[email protected]>

habanalabs: add security violations dump to debugfs

In order to improve driver security debuggability, we add
security violations dump to debugfs.

Signed-off-by: Ofir Bitton <[email protected]>
Rev

habanalabs: add security violations dump to debugfs

In order to improve driver security debuggability, we add
security violations dump to debugfs.

Signed-off-by: Ofir Bitton <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

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docs: ABI: cleanup several ABI documents

There are some ABI documents that, while they don't generate
any warnings, they have issues when parsed by get_abi.pl script
on its output result.

Address t

docs: ABI: cleanup several ABI documents

There are some ABI documents that, while they don't generate
any warnings, they have issues when parsed by get_abi.pl script
on its output result.

Address them, in order to provide a clean output.

Reviewed-by: Tom Rix <[email protected]> # for fpga-manager
Reviewed-By: Kajol Jain<[email protected]> # for sysfs-bus-event_source-devices-hv_gpci and sysfs-bus-event_source-devices-hv_24x7
Acked-by: Jonathan Cameron <[email protected]> #for IIO
Acked-by: Oded Gabbay <[email protected]> # for Habanalabs
Acked-by: Vaibhav Jain <[email protected]> # for sysfs-bus-papr-pmem
Acked-by: Cezary Rojewski <[email protected]> # for catpt
Acked-by: Suzuki K Poulose <[email protected]>
Acked-by: Ilya Dryomov <[email protected]> # for rbd
Acked-by: Jonathan Corbet <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Link: https://lore.kernel.org/r/5bc78e5b68ed1e9e39135173857cb2e753be868f.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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