accel/ivpu: Fix missing MMU events from reserved SSID

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Generate recovery when fault from reserved context is detected.
Add Abort (A) bit to reserved (1) SSID to ensure NPU also receives a fault.

There is no way to create a file_priv with reserved SSID
but it is still possible to receive MMU faults from that SSID
as it is a default NPU HW setting. Such situation will occur if
FW freed context related resources but still performed access to DRAM.

Signed-off-by: Karol Wachowski <karol.wachowski@intel.com>
Signed-off-by: Maciej Falkowski <maciej.falkowski@linux.intel.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250107173238.381120-9-maciej.falkowski@linux.intel.com

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Karol Wachowski 2025-01-07 18:32:31 +01:00 • committed by Jacek Lawrynowicz

parent 4480912f3f

commit 353b8f4839

1 changed files with 4 additions and 3 deletions

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drivers/accel/ivpu/ivpu_mmu.c

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