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As the ASICs become more complex and have many more registers, we need
a better way to configure the security properties.
As a reminder, we have two dedicated mechanisms for security:
Range Registers and Protection bits. Those mechanisms protect sensitive
memory and configuration areas inside the device.
The generic module handles the low-level part of the configuration,
because the configuration mechanism is identical in all ASICs. The
difference is the address ranges and register names.
Any ASIC that use this block should first block all the register
blocks in the ASIC. Then, it should open only the registers that
need to be accessed by the user (This is opposed to Goya and Gaudi,
where we blocked only what should not be accesses by the user).
The module contains several functions, to unblock single register,
multiple registers, entire blocks, ranges, ranges with mask.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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