The PXP terminate debugfs currently unconditionally simulates a
termination, no matter what the HW status is. This is unneeded if PXP is
not in use and can cause errors if the HW init hasn't completed yet.
To solve these issues, we can simply limit the terminations to the cases
where PXP is fully initialized and in use.
v2: s/pxp_status/ready/ to avoid confusion with pxp->status (John)
Fixes: 385a8015b2 ("drm/xe/pxp: Add PXP debugfs support")
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4749
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://lore.kernel.org/r/20250416201622.1295369-1-daniele.ceraolospurio@intel.com
(cherry picked from commit ba1f62a0ca)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
This patch introduces 2 PXP debugfs entries:
- info: prints the current PXP status and key instance
- terminate: simulate a termination interrupt
The first one is useful for debug, while the second one can be used for
testing the termination flow.
v2: move the info prints inside the lock (John)
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250129174140.948829-13-daniele.ceraolospurio@intel.com
