User will provide a nonce via the ioctl, and will retrieve
secured attestation data of the boot, generated using given
nonce.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Add new notifier events that inform several device states.
General H/W error raised on device general H/W error occurs.
User engine error is raised when a device engine informs of an error.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
In order for the user to know if he is running on a secured device
or not, we add it also to the hw_ip info ioctl.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The current flow of halting the engine cores is implemented by command
buffers built by the user space and sent towards the Driver.
This current flow is broken since the user space does not know when
the cores actually halt as sending a workload is async op.
Therefore the application can not free the memory that is mapped
to the engine cores.
This new API allows the user space to control the running mode. The
API call is sync (returns after the cores are set to the
requested mode).
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Cosmetic change to move the eventfd events defines to a better
location in the file, closer to other INFO IOCTL defines.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Currently, to get engines status, user needed to read debugfs file
with root permissions.
This new uapi allows user apace apps retrieve status, so for example,
in case of failure, status can be retrieved immediately by the
application itself which runs without root permissions.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
To be compatible with accelerator devices of different
versions, 'UACCE_CMD_QM_SET_QP_INFO' ioctl is added to obtain
queue information in userspace, including queue depth and buffer
description size.
Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The user might want to know the device is in reset after device
release, which is not an erroneous event as a regular reset.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
User application should be able to get notification for any decoder
completion. Hence, we introduce a new interface in which a user
can wait for all current decoder pending interrupts.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Current naming convention can be misleading. Hence renaming some
variables and defines in order to be more explicit.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Add the new defines for GAUDI2 uapi interface.
It includes the following:
1. Enums of engines and PLLs.
2. New information in the info IOCTL that is retrieved by the driver.
3. Update comments regarding the CB/CS/wait for CS ioctls.
4. New fields in the debug IOCTL for configuring the profiler for
Gaudi2.
There is no new IOCTL.
Some of the changes are also relevant for Greco (which will be
upstreamed later this year). When ever it says "Greco and onwards",
it means it is also for Gaudi2.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The values in this enum are not used by h/w but are a contract
between userspace and the kernel driver so they must be defined
in the uapi file.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
When a device error occurs, user process would like to get some
indication on the error by reading some device HW info. If the
device is unavailable, user process can't perform any HW device
reading.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The Driver needs to inform the User process whenever one of its
CS is timed out. The Driver shall recognize the CS timeout and shall
send an eventfd notification, towards user space, whenever a timeout
is expired on a CS.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
when an undefined opcode error occurres, the driver collects
the relevant information from the Qman and stores it inside
the hdev data structure. An event fd indication is sent towards the
user space.
Note: another commit shall be followed which will add support to
read the error info by an ioctl.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The compiler is padding the members of the struct to be aligned to
64-bit. The content of the padded bytes is and not zeroed explicitly,
hence might copy undefined data. We add a padding member to the struct
to get a zeroed 64-bit align struct.
Signed-off-by: Dan Rapaport <drapaport@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The driver will be able to send notification events towards
a user process, using user's registered event file descriptor.
The driver uses the notification mechanism to inform the
user about an occurred event.
A user thread can wait until a notification is received from
the driver.
The driver stores the occurred event until the user reads it,
using HL_INFO_GET_EVENTS - new ioctl opcode in the INFO ioctl.
Gaudi specific implementation includes sending a notification
on a TPC assertion event that is received from f/w.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch let the user decide whether the translations done in the
page tables will be fetched directly to the STLB right after the map.
We want to let the user control whether to perform prefetch upon map
operation.
To do so a memory flag was added, to be used in the MAP ioctl, called
HL_MEM_PREFETCH and if set- the mappings will be fetched directly to
the STLB after map operation.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In order for the user to know if he can try and open device, we
expose the compute ctx state. The user can now know if the context
is used by another process or whether the device is still ongoing
through cleanup or reset and will be available soon.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Future devices will support multiple device memory page sizes.
In addition, an API for the user was added for it to be able to control
the device memory allocation page size.
This patch is a complementary patch to inform the user of the available
page size supported by the device.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
