cross compilation – Verifying my compiler for CM3+ with 64bit

I’m targetint a CM3+ with a 64bit OS.

Cross-compiler (and toolchain) is using these default configurations:

  -mabi=                                lp64
  -march=                               armv8-a
  -mbig-endian                          [disabled]
  -mbionic                              [disabled]
  -mbranch-protection=
  -mcmodel=                             small
  -mcpu=                                cortex-a53+crc+simd
  -mfix-cortex-a53-835769               [enabled]
  -mfix-cortex-a53-843419               [enabled]
  -mgeneral-regs-only                   [disabled]
  -mglibc                               [enabled]
  -mharden-sls=
  -mlittle-endian                       [enabled]
  -mlow-precision-div                   [disabled]
  -mlow-precision-recip-sqrt            [disabled]
  -mlow-precision-sqrt                  [disabled]
  -mmusl                                [disabled]
  -momit-leaf-frame-pointer             [enabled]
  -moutline-atomics                     [enabled]
  -moverride=
  -mpc-relative-literal-loads           [enabled]
  -msign-return-address=                none
  -mstack-protector-guard-offset=
  -mstack-protector-guard-reg=
  -mstack-protector-guard=              global
  -mstrict-align                        [disabled]
  -msve-vector-bits=            scalable
  -mtls-dialect=                        desc
  -mtls-size=                           24
  -mtrack-speculation                   [disabled]
  -mtune=                               cortex-a53
  -muclibc                              [disabled]
  -mverbose-cost-dump                   [disabled]

  Known AArch64 ABIs (for use with the -mabi= option):
    ilp32 lp64

  Supported AArch64 return address signing scope (for use with -msign-return-address= option):
    all non-leaf none

  The code model option names for -mcmodel:
    large small tiny

  Valid arguments to -mstack-protector-guard=:
    global sysreg

  The possible SVE vector lengths:
    1024 128 2048 256 512 scalable

  The possible TLS dialects:
    desc trad

Can (shall) I include any other flags to utilize the hardware more?

I’m compiling & using ffmpeg and openssl.

I thought on adding crypto:

-mcpu=                                cortex-a53+crc+simd+crypto

Would it be feasible?