tree 4e8b51fdf8bab46f4f4d8d488cbfef1e45d330ff
parent 1e13c500a0351ac4b55d09a63f7008e2438550f8
author Manish V Badarkhe <Manish.Badarkhe@arm.com> 1619098887 +0100
committer Manish V Badarkhe <Manish.Badarkhe@arm.com> 1621449274 +0100

feat(hw_crc): add support for HW computed CRC

Added support for HW computed CRC using Arm ACLE intrinsics.
These are built-in intrinsics available for ARMv8.1-A, and
onwards.
These intrinsics are enabled via '-march=armv8-a+crc' compile
switch for ARMv8-A (supports CRC instructions optionally).

HW CRC support is enabled unconditionally in BL2 for all Arm
platforms.

HW CRC calculation is verified offline to ensure a similar
result as its respective ZLib utility function.

HW CRC calculation support will be used in the upcoming
firmware update patches.

Change-Id: Ia2ae801f62d2003e89a9c3e6d77469b5312614b3
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>