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| author | Pierre Gondois <pierre.gondois@arm.com> | 2024-01-25 16:18:41 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-01-29 16:47:03 +0000 |
| commit | 9f0ebabb57cc9c0f34ab5d3bb879e97a1d431b7d (patch) | |
| tree | 667074f6b0a898d735dd1f799342892b4197db01 /ArmPkg/Drivers | |
| parent | 3630cdf6e7ffc9d93868f52a3bcddb3d2715c74c (diff) | |
| download | edk2-9f0ebabb57cc9c0f34ab5d3bb879e97a1d431b7d.tar.gz edk2-9f0ebabb57cc9c0f34ab5d3bb879e97a1d431b7d.tar.bz2 edk2-9f0ebabb57cc9c0f34ab5d3bb879e97a1d431b7d.zip | |
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>
Diffstat (limited to 'ArmPkg/Drivers')
| -rw-r--r-- | ArmPkg/Drivers/ArmScmiDxe/ScmiPerformanceProtocol.c | 80 |
1 files changed, 75 insertions, 5 deletions
diff --git a/ArmPkg/Drivers/ArmScmiDxe/ScmiPerformanceProtocol.c b/ArmPkg/Drivers/ArmScmiDxe/ScmiPerformanceProtocol.c index 0f89808fbd..91efce4bf2 100644 --- a/ArmPkg/Drivers/ArmScmiDxe/ScmiPerformanceProtocol.c +++ b/ArmPkg/Drivers/ArmScmiDxe/ScmiPerformanceProtocol.c @@ -1,12 +1,12 @@ /** @file
- Copyright (c) 2017-2021, Arm Limited. All rights reserved.<BR>
+ Copyright (c) 2017-2023, Arm Limited. All rights reserved.<BR>
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
+ System Control and Management Interface V3.2, latest version at:
+ - https://developer.arm.com/documentation/den0056/latest/
+
**/
#include <Library/BaseMemoryLib.h>
@@ -416,6 +416,75 @@ PerformanceLevelGet ( return EFI_SUCCESS;
}
+/** Discover the attributes of the FastChannel for the specified
+ performance domain and the specified message.
+
+ @param[in] This A Pointer to SCMI_PERFORMANCE_PROTOCOL Instance.
+ @param[in] DomainId Identifier for the performance domain.
+ @param[in] MessageId Message Id of the FastChannel to discover.
+ Must be one of:
+ - PERFORMANCE_LIMITS_SET
+ - PERFORMANCE_LIMITS_GET
+ - PERFORMANCE_LEVEL_SET
+ - PERFORMANCE_LEVEL_GET
+ @param[out] FastChannel If success, contains the FastChannel description.
+
+ @retval EFI_SUCCESS Performance level got successfully.
+ @retval EFI_DEVICE_ERROR SCP returns an SCMI error.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_TIMEOUT Time out.
+ @retval EFI_UNSUPPORTED Unsupported.
+**/
+EFI_STATUS
+DescribeFastchannel (
+ IN SCMI_PERFORMANCE_PROTOCOL *This,
+ IN UINT32 DomainId,
+ IN SCMI_MESSAGE_ID_PERFORMANCE MessageId,
+ OUT SCMI_PERFORMANCE_FASTCHANNEL *FastChannel
+ )
+{
+ EFI_STATUS Status;
+ SCMI_COMMAND Cmd;
+ UINT32 PayloadLength;
+ UINT32 *ReturnValues;
+ UINT32 *MessageParams;
+
+ if ((This == NULL) ||
+ (FastChannel == NULL))
+ {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = ScmiCommandGetPayload (&MessageParams);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ *MessageParams++ = DomainId;
+ *MessageParams = MessageId;
+
+ Cmd.ProtocolId = ScmiProtocolIdPerformance;
+ Cmd.MessageId = ScmiMessageIdPerformanceDescribeFastchannel;
+ PayloadLength = sizeof (DomainId) + sizeof (MessageId);
+
+ Status = ScmiCommandExecute (
+ &Cmd,
+ &PayloadLength,
+ &ReturnValues
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ CopyMem (
+ FastChannel,
+ ReturnValues,
+ sizeof (SCMI_PERFORMANCE_FASTCHANNEL)
+ );
+
+ return Status;
+}
+
// Instance of the SCMI performance management protocol.
STATIC CONST SCMI_PERFORMANCE_PROTOCOL PerformanceProtocol = {
PerformanceGetVersion,
@@ -425,7 +494,8 @@ STATIC CONST SCMI_PERFORMANCE_PROTOCOL PerformanceProtocol = { PerformanceLimitsSet,
PerformanceLimitsGet,
PerformanceLevelSet,
- PerformanceLevelGet
+ PerformanceLevelGet,
+ DescribeFastchannel,
};
/** Initialize performance management protocol and install on a given Handle.
|