linux-toradex.git/include/uapi/misc, branch v6.0-rc1

habanalabs: add status of reset after device release

2022-07-12T06:09:31+00:00

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

habanalabs: add support for common decoder interrupts

2022-07-12T06:09:29+00:00

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 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

habanalabs: naming refactor of user interrupt flow

2022-07-12T06:09:28+00:00

Current naming convention can be misleading. Hence renaming some
variables and defines in order to be more explicit.

Signed-off-by: Ofir Bitton 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

uapi: habanalabs: add gaudi2 defines

2022-07-12T06:09:27+00:00

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

habanalabs/goya: move dma direction enum to uapi file

2022-07-12T06:09:25+00:00

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

habanalabs/gaudi: notify user process on device unavailable

2022-07-12T06:09:23+00:00

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 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

habanalabs: send an event notification when CS timeout occurs

2022-07-12T06:09:22+00:00

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 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

habanalabs: expose undefined opcode status via info ioctl

2022-07-12T06:09:22+00:00

The info ioctl retrieves information on the last undefined opcode
occurred.

Signed-off-by: Tal Cohen 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

habanalabs/gaudi: collect undefined opcode error info

2022-07-12T06:09:22+00:00

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 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

habanalabs: align ioctl uapi structures to 64-bit

2022-07-12T06:09:21+00:00

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 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay