Processing system, inter-processor communication method, and shared resource management method

An inter-processor communication method, comprising:

• applying to a processing system, and the processing system comprises a plurality of processors and a plurality of registers arranged in a manner corresponding to the plurality of processors, and the method comprises:
• writing to a first register bit of a register corresponding to a target processor of the plurality of the processors which is requested to process the event request by a source processor of the plurality of the processors which has an event request, and the first register bit being written is associated with the source processor;
• sending an interrupt request to the target processor by the register;
• reading the register and learning the event request when reading the value of the first register bit associated with the source processor by the target processor;
• clearing the first register bit after the reading operation.

A shared resource management method applied to a processing system including a plurality of processors, and a resource lock manager is arranged in the processor system, comprising:

• a processor of the plurality of the processors that requests the resource lock sending a resource lock request to the resource lock manager;
• the resource lock manager allocating the resource lock to the processor requesting the resource lock when the requested resource lock is available and only one processor requests the resource lock, or allocating the resource lock to one of the processors requesting the shared resource lock according to a preset allocation mechanism when the shared resource lock is available and more than one processor request the resource lock;
• and
• the resource lock manager registering the processors that failed to get the requested resource lock, and sending them signals indicating that the requests are failed.