Ohad Sharabi 5895474d21 habanalabs: skip read fw errors if dynamic descriptor invalid
[ Upstream commit 4fac990f604e6c10538026835a8a30f3c1b6fcf5 ]

Reporting FW errors involves reading of the error registers.

In case we have a corrupted FW descriptor we cannot do that since the
dynamic scratchpad is potentially corrupted as well and may cause kernel
crush when attempting access to a corrupted register offset.

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: Sasha Levin <sashal@kernel.org>
2022-01-27 11:05:04 +01:00
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