Commit Graph

3 Commits

Author SHA1 Message Date
Koby Elbaz
7ffb5ced2b accel/habanalabs: use a mutex rather than a spinlock
There are two reasons why mutex is better here:
1. There's a critical section relatively long, where in
certain scenarios (e.g., multiple VM allocations) taking a spinlock
might cause noticeable performance degradation.
2. It will remove the incorrect usage of mutex under
spin_lock (where preemption is disabled).

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2023-03-15 13:29:15 +02:00
Oded Gabbay
271b2d5f30 accel/habanalabs: refactor debugfs init
Make it easier to later add support for accel device.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
2023-03-15 13:29:11 +02:00
Oded Gabbay
e65e175b07 habanalabs: move driver to accel subsystem
Now that we have a subsystem for compute accelerators, move the
habanalabs driver to it.

This patch only moves the files and fixes the Makefiles. Future
patches will change the existing code to register to the accel
subsystem and expose the accel device char files instead of the
habanalabs device char files.

Update the MAINTAINERS file to reflect this change.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2023-01-26 11:52:10 +02:00