RTEMS | SMP: Add support for the MPCP locking protocol (!1358)

[Gedare Bloom (@gedare)]

Gedare Bloom started a new discussion on cpukit/include/rtems/rtems/attr.h: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1358#note_154967

 >   */
 >  #define RTEMS_MULTIPROCESSOR_RESOURCE_SHARING 0x00000100
 >  
 > +/**
 > + * @ingroup RTEMSAPIClassicAttr
 > + * 
 > + * @brief This attribute constant indicates that the Classic API Semaphore
 > + *   created by rtems_semaphore_create() will use the Multiprocessor Priority
 > + *   Ceiling Protocol.
 > + *
 > + * @par Notes
 > + * The semaphore instance must be a binary semaphore (#RTEMS_BINARY_SEMAPHORE).
 > + */
 > +#define RTEMS_MULTIPROCESSOR_PRIORITY_CEILING 0x00002000

Do we need specific attributes tied to protocols, or can we use the attribute to indicate there is a multiprocessor protocol to check, and store the protocol information somewhere else?

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1358#note_154967
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