Up until now validation errors were counted in the parsing field
of the cs_counters struct, so we added a new counter and increased
it when needed.

In addition, there were some locations where only one of the counters
was updated (ctx or aggregate) so add the second one to be updated
as well.
Signed-off-by: NAlon Mizrahi <amizrahi@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

We don't need to set EB on signal packets from collective slave
queues as it degrades performance. Because the slaves are the network
queues, the engine barrier doesn't actually guarantee that the
packet has been sent.
Signed-off-by: NAlon Mizrahi <amizrahi@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Modify the CS counter of a CB to be atomic, so no locking is required
when it is being modified or read.
Signed-off-by: NTomer Tayar <ttayar@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

add support for user to request a timestamp upon
cs completion.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Once firmware security is enabled, driver must fetch pll frequencies
through the firmware message interface instead of reading the registers
directly.
Signed-off-by: NAlon Mizrahi <amizrahi@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

We introduce a new wrapper which allows us to mmu map any size
to any host va_range available. In addition we remove duplicated
code from various places in driver and using this new wrapper
instead.
This wrapper supports mapping only contiguous physical
memory blocks and will be used for mappings that are done to the
driver ASID.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

F/W message returns 64bit value but up until now we casted it to
a 32bit variable, instead of receiving 64bit in the first place.
Signed-off-by: NAlon Mizrahi <amizrahi@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

After the MMU-code refactoring, the existing MMU debugfs operations
are no longer working so we need to fix them.
In addition, remove the duplicate code that was in the debugfs code
and use the already existing MMU-code.
Signed-off-by: NMoti Haimovski <mhaimovski@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Add support for reserving va block with alignment different than
page size. This is a pre-requisite for allocations needed in future
ASICs
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Driver must fetch FW hard reset capability during boot time,
in order to skip the hard reset flow if necessary.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Whether an ASIC has MMU towards its DRAM is an ASIC property, so
move it to the asic fixed properties structure.
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Instead of using a dedicated va range for each internal pool,
we introduce a new way for reserving a va block from an existing
va range. This is a more generic way of reserving va blocks for
future use.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

We want to handle the scenario in which the driver was not able
to kill all user processes due to many memory mappings.
We need to retry again after some period while releasing the cores.
The devices will be unusable and "in-reset" status during that time.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Future command submission types might be submitted to HW not via the
QMAN queues path. However, it would be still required to have the TDR
mechanism for these CS, and thus the patch renames the TDR fields and
replaces the hw_queues_ prefix with cs_.
Signed-off-by: NTomer Tayar <ttayar@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Use an array of va_ranges instead of keeping each va_range separately,
we do this for better readability and in order to support access to
a specific range in a much elegant manner.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Driver must verify if HW is dirty before trying to fetch preboot
information. Hence, we move this validation to a prior stage of
the boot sequence.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

The new state indicates that device should be reset in order
to re-gain funcionality.
This unique state can occur if reset_on_lockup is disabled
and an actual lockup has occurred.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Current CS jobs are no longer needed after their completion.
However, jobs of future workload might be in use even after they are
completed. To allow that, the patch adds a refcount to the job object,
and decouples its completion handling from its deallocation.
Signed-off-by: NTomer Tayar <ttayar@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

failure in reading pre-boot verion is not handled correctly,
upon failure we need to reset the device in order to be able
to reinstall the driver.
Signed-off-by: Nfarah kassabri <fkassabri@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Several header files are repeatedly included in many files.
Move these files to habanalabs.h which is included by all.
Signed-off-by: NTomer Tayar <ttayar@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Once FW security is enabled there is no access to PLL registers,
need to read values from FW using a dedicated interface.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

This commit refactors the MMU code to support PCI MMU page tables
residing on host and DCORE MMU residing on the device DRAM at the
same time.

This is needed for future devices as on GAUDI and GOYA we have
a single MMU where its page tables always reside on DRAM.
Signed-off-by: NMoti Haimovski <mhaimovski@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

In cases of multi-tenants, administrators may want to prevent data
leakage between users running on the same device one after another.

To do that the driver can scrub the internal memory (both SRAM and
DRAM) after a user finish to use the memory.

Because in GAUDI the driver allows only one application to use the
device at a time, it can scrub the memory when user app close FD.

In future devices where we have MMU on the DRAM, we can scrub the DRAM
memory with a finer granularity (page granularity) when the user
allocates the memory.

This feature is not supported in Goya.

To allow users that want to debug their applications, we add a kernel
module parameter to load the driver with this feature disabled.
Signed-off-by: Nfarah kassabri <fkassabri@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Add support for fetching security indication from FW.
This indication is needed in order to skip unnecessary
initializations done by FW.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Fix cs counters structure in uapi to be one flat structure instead
of two instances of the same other structure.
use atomic read/increment for context counters so we could use
one structure for both aggregated and context counters.
Signed-off-by: Nfarah kassabri <fkassabri@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Today driver is able to load a whole FW binary into a specific
location on ASIC. We add support for loading sections from the
same FW binary into different loactions.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Implement sync stream collective for GAUDI. Need to allocate additional
resources for that and add ctx_fini() to clean up those resources.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Define new API for collective wait support and modify sync stream
common flow. In addition add kernel CB allocation support for
internal queues.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

In the future there will be situations where queues can accept either
kernel allocated CBs or user allocated CBs, depending on different
states.

Therefore, instead of using a boolean variable of kernel/user allocated
CB, we need to use a bitmask to indicate that, which will allow to
combine the two options.

Add a flag to the uapi so the user will be able to indicate whether
the CB was allocated by kernel or by user. Of course the driver
validates that.
Signed-off-by: NTal Cohen <talcohen@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Initialize the QMANs that are responsible to submit doorbells to the NIC
engines. Add support for stopping and disabling them, and reset them as
part of the hard-reset procedure of GAUDI. This will allow the user to
submit work to the NICs.

Add support for receiving events on QMAN errors from the firmware.

However, the nic_ports_mask is still initialized to 0. That means this code
won't initialize the QMANs just yet. That will be in a later patch.
Signed-off-by: NOmer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Support advanced monitor functionality to monitor more than a
single SOB. In addition expand all CB generation functions
with buffer offset in order to put in them multiple packets that are
generated by different functions.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Refactor sync stream implementation by adding more structures for
better readability. In addition reducing allocated resources.
Signed-off-by: NOfir Bitton <obitton@habana.ai>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

The driver now loads the firmware in two stages. For debugging purposes
we need to support situations where only the first stage firmware is
loaded.

Therefore, use a bitmask to determine which F/W is loaded
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

In case we will have multiple contexts/processes, we can't just
increment aggregated counters. We need to make them atomic as they can
be incremented by multiple processes
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

All throughout the driver, normal kernel pointers are
stored as 'u64' struct members, which is kind of silly
and requires casting through a uintptr_t to void* every
time they are used.

There is one line that missed the intermediate uintptr_t
case, which leads to a compiler warning:

drivers/misc/habanalabs/common/command_buffer.c: In function 'hl_cb_mmap':
drivers/misc/habanalabs/common/command_buffer.c:512:44: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  512 |  rc = hdev->asic_funcs->cb_mmap(hdev, vma, (void *) cb->kernel_address,

Rather than adding one more cast, just fix the type and
remove all the other casts.

Fixes: 0db57535 ("habanalabs: make use of dma_mmap_coherent")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: NOded Gabbay <ogabbay@kernel.org>

Future F/W versions will have enhanced security measures and the driver
won't be able to do certain configurations that it always did and those
configurations will be done by the firmware.

We use the firmware's preboot version to determine whether security
measures are enabled or not. Because we need this very early in our code,
the read of the preboot version is moved to the earliest possible place,
right after the device's PCI initialization.
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>

There are cases in which the device should access the host memory of a
CB through the device MMU, and thus this memory should be mapped.
The patch adds a flag to the CB IOCTL, in which a user can ask the
driver to perform the mapping when creating a CB.
The mapping is allowed only if a dedicated VA range was allocated for
the specific ASIC.
Signed-off-by: NTomer Tayar <ttayar@habana.ai>
Reviewed-by: NOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>

Future changes require using a context while handling a command buffer,
and thus need to save the context in the command buffer object.
Signed-off-by: NTomer Tayar <ttayar@habana.ai>
Reviewed-by: NOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>

This commit adds the number of HOPs supported by the device to the
device MMU properties.
Signed-off-by: NMoti Haimovski <mhaimovski@habana.ai>
Reviewed-by: NOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>

As preparation to MMU v2, rework MMU to be device oriented
instantiated according to the device in hand.
Signed-off-by: NMoti Haimovski <mhaimovski@habana.ai>
Reviewed-by: NOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>