50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/** @file
|
|
|
|
Copyright (c) 2017-2021, Arm Limited. All rights reserved.
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
System Control and Management Interface V1.0
|
|
http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/
|
|
DEN0056A_System_Control_and_Management_Interface.pdf
|
|
**/
|
|
|
|
#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)
|
|
|
|
/** Return values for ScmiMessageIdPerformanceDescribeLevels command.
|
|
SCMI Spec section 4.5.2.5
|
|
**/
|
|
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;
|
|
|
|
/** Initialize performance management protocol and install on a given Handle.
|
|
|
|
@param[in] Handle Handle to install performance management
|
|
protocol.
|
|
|
|
@retval EFI_SUCCESS Performance protocol installed successfully.
|
|
**/
|
|
EFI_STATUS
|
|
ScmiPerformanceProtocolInit (
|
|
IN EFI_HANDLE *Handle
|
|
);
|
|
|
|
#endif /* ARM_SCMI_PERFORMANCE_PROTOCOL_PRIVATE_H_ */
|