mirror of https://github.com/acidanthera/audk.git
ArmPkg/ArmScmiDxe: Add PERFORMANCE_DESCRIBE_FASTCHANNEL support
The PERFORMANCE_DESCRIBE_FASTCHANNEL Scmi command is available since SCMI v2.0 and allows to query information about the supported fast-channels of the Scmi performance protocol. Add support for this command. Also move SCMI_MESSAGE_ID_PERFORMANCE enum definition up in the file to use it in SCMI_PERFORMANCE_DESCRIBE_FASTCHANNEL function declaration. Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
This commit is contained in:
Pierre Gondois
mergify[bot]
parent
3630cdf6e7
commit
9f0ebabb57
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@ -1,12 +1,12 @@
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/** @file
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Copyright (c) 2017-2021, Arm Limited. All rights reserved.<BR>
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Copyright (c) 2017-2023, Arm Limited. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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System Control and Management Interface V1.0
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http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/
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DEN0056A_System_Control_and_Management_Interface.pdf
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System Control and Management Interface V3.2, latest version at:
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- https://developer.arm.com/documentation/den0056/latest/
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**/
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#include <Library/BaseMemoryLib.h>
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@ -416,6 +416,75 @@ PerformanceLevelGet (
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return EFI_SUCCESS;
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}
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/** Discover the attributes of the FastChannel for the specified
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performance domain and the specified message.
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@param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
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@param[in] DomainId Identifier for the performance domain.
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@param[in] MessageId Message Id of the FastChannel to discover.
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Must be one of:
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- PERFORMANCE_LIMITS_SET
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- PERFORMANCE_LIMITS_GET
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- PERFORMANCE_LEVEL_SET
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- PERFORMANCE_LEVEL_GET
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@param[out] FastChannel If success, contains the FastChannel description.
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@retval EFI_SUCCESS Performance level got successfully.
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@retval EFI_DEVICE_ERROR SCP returns an SCMI error.
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@retval EFI_INVALID_PARAMETER Invalid parameter.
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@retval EFI_TIMEOUT Time out.
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@retval EFI_UNSUPPORTED Unsupported.
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**/
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EFI_STATUS
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DescribeFastchannel (
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IN SCMI_PERFORMANCE_PROTOCOL *This,
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IN UINT32 DomainId,
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IN SCMI_MESSAGE_ID_PERFORMANCE MessageId,
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OUT SCMI_PERFORMANCE_FASTCHANNEL *FastChannel
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)
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{
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EFI_STATUS Status;
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SCMI_COMMAND Cmd;
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UINT32 PayloadLength;
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UINT32 *ReturnValues;
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UINT32 *MessageParams;
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if ((This == NULL) ||
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(FastChannel == NULL))
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{
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return EFI_INVALID_PARAMETER;
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}
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Status = ScmiCommandGetPayload (&MessageParams);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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*MessageParams++ = DomainId;
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*MessageParams = MessageId;
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Cmd.ProtocolId = ScmiProtocolIdPerformance;
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Cmd.MessageId = ScmiMessageIdPerformanceDescribeFastchannel;
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PayloadLength = sizeof (DomainId) + sizeof (MessageId);
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Status = ScmiCommandExecute (
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&Cmd,
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&PayloadLength,
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&ReturnValues
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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CopyMem (
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FastChannel,
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ReturnValues,
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sizeof (SCMI_PERFORMANCE_FASTCHANNEL)
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);
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return Status;
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}
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// Instance of the SCMI performance management protocol.
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STATIC CONST SCMI_PERFORMANCE_PROTOCOL PerformanceProtocol = {
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PerformanceGetVersion,
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@ -425,7 +494,8 @@ STATIC CONST SCMI_PERFORMANCE_PROTOCOL PerformanceProtocol = {
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PerformanceLimitsSet,
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PerformanceLimitsGet,
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PerformanceLevelSet,
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PerformanceLevelGet
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PerformanceLevelGet,
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DescribeFastchannel,
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};
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/** Initialize performance management protocol and install on a given Handle.
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@ -79,8 +79,58 @@ typedef struct {
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UINT32 RangeMin;
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} SCMI_PERFORMANCE_LIMITS;
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/// Doorbell Support bit.
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#define SCMI_PERF_FC_ATTRIB_HAS_DOORBELL BIT0
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/// Performance protocol describe fastchannel
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typedef struct {
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/// Attributes.
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UINT32 Attributes;
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/// Rate limit.
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UINT32 RateLimit;
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/// Lower 32 bits of the FastChannel address.
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UINT32 ChanAddrLow;
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/// Higher 32 bits of the FastChannel address.
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UINT32 ChanAddrHigh;
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/// Size of the FastChannel in bytes.
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UINT32 ChanSize;
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/// Lower 32 bits of the doorbell address.
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UINT32 DoorbellAddrLow;
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/// Higher 32 bits of the doorbell address.
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UINT32 DoorbellAddrHigh;
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/// Mask of lower 32 bits to set when writing to the doorbell register.
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UINT32 DoorbellSetMaskLow;
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/// Mask of higher 32 bits to set when writing to the doorbell register.
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UINT32 DoorbellSetMaskHigh;
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/// Mask of lower 32 bits to preserve when writing to the doorbell register.
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UINT32 DoorbellPreserveMaskLow;
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/// Mask of higher 32 bits to preserve when writing to the doorbell register.
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UINT32 DoorbellPreserveMaskHigh;
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} SCMI_PERFORMANCE_FASTCHANNEL;
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#pragma pack()
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/// SCMI Message Ids for the Performance Protocol.
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typedef enum {
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ScmiMessageIdPerformanceDomainAttributes = 0x3,
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ScmiMessageIdPerformanceDescribeLevels = 0x4,
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ScmiMessageIdPerformanceLimitsSet = 0x5,
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ScmiMessageIdPerformanceLimitsGet = 0x6,
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ScmiMessageIdPerformanceLevelSet = 0x7,
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ScmiMessageIdPerformanceLevelGet = 0x8,
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ScmiMessageIdPerformanceDescribeFastchannel = 0xB,
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} SCMI_MESSAGE_ID_PERFORMANCE;
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/** Return version of the performance management protocol supported by SCP.
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firmware.
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@ -238,6 +288,34 @@ EFI_STATUS
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OUT UINT32 *Level
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);
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/** Discover the attributes of the FastChannel for the specified
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performance domain and the specified message.
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@param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
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@param[in] DomainId Identifier for the performance domain.
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@param[in] MessageId Message Id of the FastChannel to discover.
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Must be one of:
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- PERFORMANCE_LIMITS_SET
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- PERFORMANCE_LIMITS_GET
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- PERFORMANCE_LEVEL_SET
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- PERFORMANCE_LEVEL_GET
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@param[out] FastChannel If success, contains the FastChannel description.
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@retval EFI_SUCCESS Performance level got successfully.
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@retval EFI_DEVICE_ERROR SCP returns an SCMI error.
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@retval EFI_INVALID_PARAMETER Invalid parameter.
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@retval EFI_TIMEOUT Time out.
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@retval EFI_UNSUPPORTED Unsupported.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *SCMI_PERFORMANCE_DESCRIBE_FASTCHANNEL)(
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IN SCMI_PERFORMANCE_PROTOCOL *This,
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IN UINT32 DomainId,
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IN SCMI_MESSAGE_ID_PERFORMANCE MessageId,
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OUT SCMI_PERFORMANCE_FASTCHANNEL *FastChannel
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);
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typedef struct _SCMI_PERFORMANCE_PROTOCOL {
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SCMI_PERFORMANCE_GET_VERSION GetVersion;
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SCMI_PERFORMANCE_GET_ATTRIBUTES GetProtocolAttributes;
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@ -247,15 +325,7 @@ typedef struct _SCMI_PERFORMANCE_PROTOCOL {
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SCMI_PERFORMANCE_LIMITS_GET LimitsGet;
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SCMI_PERFORMANCE_LEVEL_SET LevelSet;
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SCMI_PERFORMANCE_LEVEL_GET LevelGet;
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SCMI_PERFORMANCE_DESCRIBE_FASTCHANNEL DescribeFastchannel;
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} SCMI_PERFORMANCE_PROTOCOL;
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typedef enum {
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ScmiMessageIdPerformanceDomainAttributes = 0x3,
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ScmiMessageIdPerformanceDescribeLevels = 0x4,
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ScmiMessageIdPerformanceLimitsSet = 0x5,
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ScmiMessageIdPerformanceLimitsGet = 0x6,
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ScmiMessageIdPerformanceLevelSet = 0x7,
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ScmiMessageIdPerformanceLevelGet = 0x8,
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} SCMI_MESSAGE_ID_PERFORMANCE;
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#endif /* ARM_SCMI_PERFORMANCE_PROTOCOL_H_ */
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