RTEMS | cpukit: Create DHRL Library for DRAM Latency Mitigation (!1193)

[Gedare Bloom (@gedare)]

Gedare Bloom started a new discussion on cpukit/dhrl/dhrl.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1193#note_150599

 > +        memory_order_relaxed
 > +      )
 > +    ) {
 > +      atomic_store_explicit(
 > +        &ctx->winning_data_ptr,
 > +        (uintptr_t) target_addr,
 > +        memory_order_release
 > +      );
 > +    }
 > +
 > +    rtems_barrier_wait( ctx->tail_barrier, RTEMS_NO_TIMEOUT );
 > +  }
 > +}
 > +
 > +/* Internal Hybrid Barrier Execution */
 > +static volatile void *dhrl_fetch_data(

I don't think a function return should ever need to be `volatile`. I think this behavior is deprecated and may produce warnings in some compiler configurations.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1193#note_150599
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