Once clock gating is set we enable clock gating according to mask,
we should also disable clock gating according to relevant bits.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
The condition was reversed. It should have been less than instead of
greater than. The result is that we never enter the loop.
Fixes: fcc6a4e606 ("habanalabs: Extract ECC information from FW")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
During command buffer parsing, driver extracts packet id
from user buffer. Driver must validate this packet id, since it is
being used in order to extract information from internal structures.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
There's no need to try to be cute with the include file locations in the
Makefile, so just specify exactly where the files are.
Bonus is this fixes the problem of building with O= as well as trying to
just build the subdirectory alone.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Oded Gabbay <oded.gabbay@gmail.com>
Cc: Omer Shpigelman <oshpigelman@habana.ai>
Cc: Tomer Tayar <ttayar@habana.ai>
Cc: Moti Haimovski <mhaimovski@habana.ai>
Cc: Ofir Bitton <obitton@habana.ai>
Cc: Ben Segal <bpsegal20@gmail.com>
Cc: Christine Gharzuzi <cgharzuzi@habana.ai>
Cc: Pawel Piskorski <ppiskorski@habana.ai>
Link: https://lore.kernel.org/r/20200728171851.55842-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
gaudi_mmu_invalidate_cache() doesn't use the flags parameter, and thus
it can be set to 0 when the function is called in the gaudi only files.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Create a device MMU-mapped internal command buffer pool, in order to allow
the driver to allocate CBs for the signal/wait operations
that are fetched by the queues when they are configured with the user's
address space ID.
We must pre-map this internal pool due to performance issues.
This pool is needed for future ASIC support and it is currently unused in
GOYA and GAUDI.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
For internal needs of our CI we need to move all the common code into a
common folder instead of putting them in the root folder of the driver.
Same applies to the common header files under include/
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
In GAUDI we use QMAN0 DMA for clearing the MMU memory region
at initialization. if this operation fails it places the DMA in an error
state and then when trying to initialize QMAN0 we fail and erroneously
assume its the QMAN that failed.
This commit adds a check and clear of such DMA errors at initialization so
we will have a better understanding of what went wrong.
Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Currently the driver halts the device CPU in the halt engines function,
which halts all the engines of the ASIC. The problem is that if later on we
stop the reset process (due to inability to clean memory mappings in time),
the CPU will remain in halt mode. This creates many issues, such as
thermal/power control and FLR handling.
Therefore, move the halting of the device CPU to the very end of the reset
process, just before writing to the registers to initiate the reset. In
addition, the driver now needs to send a message to the device F/W to
disable it from sending interrupts to the host machine because during halt
engines function the driver disables the MSI/MSI-X interrupts.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Currently the amount of maximum queues is statically configured.
Using a static value is causing redundunt cycles when traversing
all queues and consumes more memory than actually needed.
In this patch we configure each asic with the exact number of
queues needed.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Soft-reset isn't supported in GAUDI. Remove the code that performs it and
print error in case the user wants to do it via sysfs.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Divide iATU initialization into inbound/outbound methods.
We must separate it in order to enable different match mode
per PCIe region.
In addition, added support for PCI address match mode.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
ECC (Error Correcting Code) interrupts are going to be handled
by the FW. Hence, we define an interface in which the driver can
obtain the relevant ECC information.
This information is needed for monitoring and can also lead
to a hard reset if ECC error is not correctable.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
After recent concurrent cs amount increase, we must also
increase queues depth since much more concurrent work can be done.
All external queue depths were increased to 4096 as gaudi's
internal queue depths were also increased to 1024.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
The profiler needs to know the PLL values for correctly showing the
profiling data. Because our firmware can use different PLL configurations,
we need to read the PLL values from the ASIC to pass them to the profiler.
Signed-off-by: Adam Aharon <aaharon@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Currently sync stream is limited only for external queues. We want to
remove this constraint by adding a new queue property dedicated for sync
stream. In addition we move the initialization and reset methods to the
common code since we can re-use them with slight changes.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Training schemes requires much more concurrent command submissions than
inference does. In addition, training command submissions can be completed
in a non serialized manner. Hence, we add support in which each ASIC will
be able to configure the amount of concurrent pending command submissions,
rather than use a predefined amount. This change will enhance performance
by allowing the user to add more concurrent work without waiting for the
previous work to be completed.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
We no longer need to initialize the rate limiters in GAUDI A1.
Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
We see that sometimes the CPU in GOYA and GAUDI is occupied by the
power/thermal loop and can't answer requests from the driver fast enough.
Therefore, to avoid false notifications on timeouts, increase the timeout
to 4 seconds on each message sent to the device CPU.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
For debugging purposes, we need to allow the root user better control of
the clock gating feature of the DMA and compute engines. Therefore, change
the clock gating debugfs interface to be bitmask instead of true/false.
Each bit represents a different engine, according to gaudi_engine_id enum.
See debugfs documentation for more details.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
WREG_BULK is a special packet that has a variable length. Therefore, we
can't parse it when validating CBs that go to the PCI DMA queue. In case
the user needs to use it, it can put multiple WREG32 packets instead.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
gaudi_pb_set_block()'s argument 'base' was incorrectly named 'block' in
its function header.
Fixes the following W=1 kernel build warning(s):
drivers/misc/habanalabs/gaudi/gaudi_security.c:454: warning: Function parameter or member 'base' not described in 'gaudi_pb_set_block'
drivers/misc/habanalabs/gaudi/gaudi_security.c:454: warning: Excess function parameter 'block' description in 'gaudi_pb_set_block'
Cc: Oded Gabbay <oded.gabbay@gmail.com>
Cc: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Link: https://lore.kernel.org/r/20200701085853.164358-11-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
W=1 kernel builds report a lack of description of gaudi_set_asic_funcs()'s
'hdev' argument. In reality it is documented, but the formatting
was not as expected '@.*:'. Instead, there was a misplaced asterisk
which was confusing the kerneldoc validator.
Squashes the following W=1 warning:
drivers/misc/habanalabs/gaudi/gaudi.c:6746: warning: Function parameter or member 'hdev' not described in 'gaudi_set_asic_funcs'
Cc: Oded Gabbay <oded.gabbay@gmail.com>
Cc: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Link: https://lore.kernel.org/r/20200701085853.164358-10-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In GAUDI the current timer value for the hardware to check if it is
in IDLE state is too low. As a result, there are occasions where the H/W
wrongly reports it is not IDLE. The driver checks that before submitting
work on behalf of the driver during initialization, so a false report might
cause the driver to fail during device initialization.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
The current timeout is too low for some of the workloads and we see false
errors as a result.
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
The PS flow for MMU cache invalidation caused timeouts in stress tests.
Use PS + PI flow so no timeouts should happen whatsoever.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
In Gaudi, the user can't execute scalar load_and_exe on external queue
because it can be a security hole. The driver doesn't parse the commands
being loaded and it can be msg_prot, which the user isn't allowed to use.
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
MMU cache invalidation timeout indicates that the device is unstable and
therefore unusable.
Hence in such case do hard reset and return an error to the user if was
called from ioctl.
In addition, change the print to error level and rephrase its text.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
GAUDI does not support soft-reset as it leaves the NIC ports in an awkward
state, where their QMANs were reset but the NIC itself is still working.
In addition, there is not much sense in doing soft-reset when training is
done on multiple GAUDIs.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
A new sequence is introduced to invalidate the MMU cache in order to avoid
timeouts.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Instead of writing similar event handling code for each ASIC, move the code
to the common firmware file. This code will be used for GAUDI and all
future ASICs.
In addition, add two new fields to the auto-generated events file: valid
and description. This will save the need to manually write the events
description in the source code and simplify the code.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Add the GAUDI code to initialize the ASIC's profiler. The profile receives
its initialization values from the user, same as in Goya, but the code to
initialize is in the driver because the configuration space of the
device is not directly exposed to the user.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Add the code to initialize the security module of GAUDI. Similar to Goya,
we have two dedicated mechanisms for security: Range Registers and
Protection bits. Those mechanisms protect sensitive memory and
configuration areas inside the device.
In addition, in Gaudi we moved to a 3-level security scheme, where the F/W
runs with the highest security level (Privileged), the driver runs with a
less secured level (Secured) and the user is neither privileged nor
secured. The security module in the driver configures the Secured parts so
the user won't be able to access them. The Privileged parts are configured
by the F/W.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
The hwmgr module is responsible for messages sent to GAUDI F/W that are
not common to all habanalabs ASICs.
In GAUDI, we provide the user a simplified mode of controlling the ASIC
clock frequency. Instead of three different clocks, we present a single
clock property that the user can configure via sysfs.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Add the ASIC-dependent code for GAUDI. Supply (almost) all of the function
callbacks that the driver's common code need to initialize, finalize and
submit workloads to the GAUDI ASIC.
It also contains the code to initialize the F/W of the GAUDI ASIC and to
receive events from the F/W.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Ofir Bitton