ArmScmiPerformanceProtocolPrivate.h

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#ifndef ARM_SCMI_PERFORMANCE_PROTOCOL_PRIVATE_H_
#define ARM_SCMI_PERFORMANCE_PROTOCOL_PRIVATE_H_
 
#include <Protocol/ArmScmiPerformanceProtocol.h>
 
// Number of performance levels returned by a call to the SCP, Lvls Bits[11:0]
#define NUM_PERF_LEVELS_MASK  0x0FFF
#define NUM_PERF_LEVELS(Lvls)  (Lvls & NUM_PERF_LEVELS_MASK)
 
// Number of performance levels remaining after a call to the SCP, Lvls Bits[31:16]
#define NUM_REMAIN_PERF_LEVELS_SHIFT  16
#define NUM_REMAIN_PERF_LEVELS(Lvls)  (Lvls >> NUM_REMAIN_PERF_LEVELS_SHIFT)
 
typedef struct {
  UINT32                    NumLevels;
 
  // NOTE: Since EDK2 does not allow flexible array member [] we declare
  // here array of 1 element length. However below is used as a variable
  // length array.
  SCMI_PERFORMANCE_LEVEL    PerfLevel[1]; // Offset to array of performance levels
} PERF_DESCRIBE_LEVELS;
 
EFI_STATUS
ScmiPerformanceProtocolInit (
  IN EFI_HANDLE  *Handle
  );
 
#endif /* ARM_SCMI_PERFORMANCE_PROTOCOL_PRIVATE_H_ */