diff options
Diffstat (limited to 'ArmPkg/Include/Protocol/ArmScmiPerformanceProtocol.h')
| -rw-r--r-- | ArmPkg/Include/Protocol/ArmScmiPerformanceProtocol.h | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/ArmPkg/Include/Protocol/ArmScmiPerformanceProtocol.h b/ArmPkg/Include/Protocol/ArmScmiPerformanceProtocol.h new file mode 100644 index 0000000000..1d1af6f8be --- /dev/null +++ b/ArmPkg/Include/Protocol/ArmScmiPerformanceProtocol.h @@ -0,0 +1,265 @@ +/** @file
+
+ Copyright (c) 2017-2018, Arm Limited. All rights reserved.
+
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ 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_H_
+#define ARM_SCMI_PERFORMANCE_PROTOCOL_H_
+
+#include <Protocol/ArmScmi.h>
+
+#define PERFORMANCE_PROTOCOL_VERSION 0x10000
+
+#define ARM_SCMI_PERFORMANCE_PROTOCOL_GUID { \
+ 0x9b8ba84, 0x3dd3, 0x49a6, {0xa0, 0x5a, 0x31, 0x34, 0xa5, 0xf0, 0x7b, 0xad} \
+ }
+
+extern EFI_GUID gArmScmiPerformanceProtocolGuid;
+
+typedef struct _SCMI_PERFORMANCE_PROTOCOL SCMI_PERFORMANCE_PROTOCOL;
+
+#pragma pack(1)
+
+#define POWER_IN_MW_SHIFT 16
+#define POWER_IN_MW_MASK 0x1
+#define NUM_PERF_DOMAINS_MASK 0xFFFF
+
+// Total number of performance domains, Attr Bits [15:0]
+#define SCMI_PERF_TOTAL_DOMAINS(Attr) (Attr & NUM_PERF_DOMAINS_MASK)
+
+// A flag to express power values in mW or platform specific way, Attr Bit [16]
+#define SCMI_PERF_POWER_IN_MW(Attr) ((Attr >> POWER_IN_MW_SHIFT) & \
+ POWER_IN_MW_MASK)
+
+// Performance protocol attributes return values.
+typedef struct {
+ UINT32 Attributes;
+ UINT64 StatisticsAddress;
+ UINT32 StatisticsLen;
+} SCMI_PERFORMANCE_PROTOCOL_ATTRIBUTES;
+
+#define SCMI_PERF_SUPPORT_LVL_CHANGE_NOTIFY(Attr) ((Attr >> 28) & 0x1)
+#define SCMI_PERF_SUPPORT_LIM_CHANGE_NOTIFY(Attr) ((Attr >> 29) & 0x1)
+#define SCMI_PERF_SUPPORT_SET_LVL(Attr) ((Attr >> 30) & 0x1)
+#define SCMI_PERF_SUPPORT_SET_LIM(Attr) ((Attr >> 31) & 0x1)
+#define SCMI_PERF_RATE_LIMIT(RateLimit) (RateLimit & 0xFFF)
+
+// Performance protocol domain attributes.
+typedef struct {
+ UINT32 Attributes;
+ UINT32 RateLimit;
+ UINT32 SustainedFreq;
+ UINT32 SustainedPerfLevel;
+ UINT8 Name[SCMI_MAX_STR_LEN];
+} SCMI_PERFORMANCE_DOMAIN_ATTRIBUTES;
+
+// Worst case latency in microseconds, Bits[15:0]
+#define PERF_LATENCY_MASK 0xFFFF
+#define SCMI_PERFORMANCE_PROTOCOL_LATENCY(Latency) (Latency & PERF_LATENCY_MASK)
+
+// Performance protocol performance level.
+typedef struct {
+ UINT32 Level;
+ UINT32 PowerCost;
+ UINT32 Latency;
+} SCMI_PERFORMANCE_LEVEL;
+
+// Performance protocol performance limit.
+typedef struct {
+ UINT32 RangeMax;
+ UINT32 RangeMin;
+} SCMI_PERFORMANCE_LIMITS;
+
+#pragma pack()
+
+/** Return version of the performance management protocol supported by SCP.
+ firmware.
+
+ @param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
+
+ @param[out] Version Version of the supported SCMI performance management
+ protocol.
+
+ @retval EFI_SUCCESS The version is returned.
+ @retval EFI_DEVICE_ERROR SCP returns an SCMI error.
+ @retval !(EFI_SUCCESS) Other errors.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SCMI_PERFORMANCE_GET_VERSION) (
+ IN SCMI_PERFORMANCE_PROTOCOL *This,
+ OUT UINT32 *Version
+ );
+
+/** Return protocol attributes of the performance management protocol.
+
+ @param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
+
+ @param[out] Attributes Protocol attributes.
+
+ @retval EFI_SUCCESS Protocol attributes are returned.
+ @retval EFI_DEVICE_ERROR SCP returns an SCMI error.
+ @retval !(EFI_SUCCESS) Other errors.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SCMI_PERFORMANCE_GET_ATTRIBUTES) (
+ IN SCMI_PERFORMANCE_PROTOCOL *This,
+ OUT SCMI_PERFORMANCE_PROTOCOL_ATTRIBUTES *Attributes
+
+ );
+
+/** Return performance domain attributes.
+
+ @param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
+ @param[in] DomainId Identifier for the performance domain.
+
+ @param[out] Attributes Performance domain attributes.
+
+ @retval EFI_SUCCESS Domain attributes are returned.
+ @retval EFI_DEVICE_ERROR SCP returns an SCMI error.
+ @retval !(EFI_SUCCESS) Other errors.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SCMI_PERFORMANCE_GET_DOMAIN_ATTRIBUTES) (
+ IN SCMI_PERFORMANCE_PROTOCOL *This,
+ IN UINT32 DomainId,
+ OUT SCMI_PERFORMANCE_DOMAIN_ATTRIBUTES *DomainAttributes
+ );
+
+/** Return list of performance domain levels of a given domain.
+
+ @param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
+ @param[in] DomainId Identifier for the performance domain.
+
+ @param[out] NumLevels Total number of levels a domain can support.
+
+ @param[in,out] LevelArraySize Size of the performance level array.
+
+ @param[out] LevelArray Array of the performance levels.
+
+ @retval EFI_SUCCESS Domain levels are returned.
+ @retval EFI_DEVICE_ERROR SCP returns an SCMI error.
+ @retval EFI_BUFFER_TOO_SMALL LevelArraySize is too small for the result.
+ It has been updated to the size needed.
+ @retval !(EFI_SUCCESS) Other errors.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SCMI_PERFORMANCE_DESCRIBE_LEVELS) (
+ IN SCMI_PERFORMANCE_PROTOCOL *This,
+ IN UINT32 DomainId,
+ OUT UINT32 *NumLevels,
+ IN OUT UINT32 *LevelArraySize,
+ OUT SCMI_PERFORMANCE_LEVEL *LevelArray
+ );
+
+/** Set performance limits of a domain.
+
+ @param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
+ @param[in] DomainId Identifier for the performance domain.
+ @param[in] Limit Performance limit to set.
+
+ @retval EFI_SUCCESS Performance limits set successfully.
+ @retval EFI_DEVICE_ERROR SCP returns an SCMI error.
+ @retval !(EFI_SUCCESS) Other errors.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SCMI_PERFORMANCE_LIMITS_SET) (
+ IN SCMI_PERFORMANCE_PROTOCOL *This,
+ IN UINT32 DomainId,
+ IN SCMI_PERFORMANCE_LIMITS *Limits
+ );
+
+/** Get performance limits of a domain.
+
+ @param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
+ @param[in] DomainId Identifier for the performance domain.
+
+ @param[out] Limit Performance Limits of the domain.
+
+ @retval EFI_SUCCESS Performance limits are returned.
+ @retval EFI_DEVICE_ERROR SCP returns an SCMI error.
+ @retval !(EFI_SUCCESS) Other errors.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SCMI_PERFORMANCE_LIMITS_GET) (
+ SCMI_PERFORMANCE_PROTOCOL *This,
+ UINT32 DomainId,
+ SCMI_PERFORMANCE_LIMITS *Limits
+ );
+
+/** Set performance level of a domain.
+
+ @param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
+ @param[in] DomainId Identifier for the performance domain.
+ @param[in] Level Performance level of the domain.
+
+ @retval EFI_SUCCESS Performance level set successfully.
+ @retval EFI_DEVICE_ERROR SCP returns an SCMI error.
+ @retval !(EFI_SUCCESS) Other errors.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SCMI_PERFORMANCE_LEVEL_SET) (
+ IN SCMI_PERFORMANCE_PROTOCOL *This,
+ IN UINT32 DomainId,
+ IN UINT32 Level
+ );
+
+/** Get performance level of a domain.
+
+ @param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
+ @param[in] DomainId Identifier for the performance domain.
+
+ @param[out] Level Performance level of the domain.
+
+ @retval EFI_SUCCESS Performance level got successfully.
+ @retval EFI_DEVICE_ERROR SCP returns an SCMI error.
+ @retval !(EFI_SUCCESS) Other errors.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *SCMI_PERFORMANCE_LEVEL_GET) (
+ IN SCMI_PERFORMANCE_PROTOCOL *This,
+ IN UINT32 DomainId,
+ OUT UINT32 *Level
+ );
+
+typedef struct _SCMI_PERFORMANCE_PROTOCOL {
+ SCMI_PERFORMANCE_GET_VERSION GetVersion;
+ SCMI_PERFORMANCE_GET_ATTRIBUTES GetProtocolAttributes;
+ SCMI_PERFORMANCE_GET_DOMAIN_ATTRIBUTES GetDomainAttributes;
+ SCMI_PERFORMANCE_DESCRIBE_LEVELS DescribeLevels;
+ SCMI_PERFORMANCE_LIMITS_SET LimitsSet;
+ SCMI_PERFORMANCE_LIMITS_GET LimitsGet;
+ SCMI_PERFORMANCE_LEVEL_SET LevelSet;
+ SCMI_PERFORMANCE_LEVEL_GET LevelGet;
+} SCMI_PERFORMANCE_PROTOCOL;
+
+typedef enum {
+ SCMI_MESSAGE_ID_PERFORMANCE_DOMAIN_ATTRIBUTES = 0x3,
+ SCMI_MESSAGE_ID_PERFORMANCE_DESCRIBE_LEVELS = 0x4,
+ SCMI_MESSAGE_ID_PERFORMANCE_LIMITS_SET = 0x5,
+ SCMI_MESSAGE_ID_PERFORMANCE_LIMITS_GET = 0x6,
+ SCMI_MESSAGE_ID_PERFORMANCE_LEVEL_SET = 0x7,
+ SCMI_MESSAGE_ID_PERFORMANCE_LEVEL_GET = 0x8,
+} SCMI_MESSAGE_ID_PERFORMANCE;
+
+#endif /* ARM_SCMI_PERFORMANCE_PROTOCOL_H_ */
+
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