You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
926 B
43 lines
926 B
/'
|
|
' Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
|
|
'
|
|
' SPDX-License-Identifier: BSD-3-Clause
|
|
'/
|
|
|
|
@startuml
|
|
|
|
autonumber "<b>[#]</b>"
|
|
participant "SDEI client" as EL2
|
|
participant EL3
|
|
participant "SDEI interrupt source" as SDEI
|
|
|
|
activate EL2
|
|
EL2->EL3: **SDEI_INTERRUPT_BIND**(irq)
|
|
EL3->EL2: event number: ev
|
|
EL2->EL3: **SDEI_EVENT_REGISTER**(ev, handler, ...)
|
|
EL3->EL2: success
|
|
EL2->EL3: **SDEI_EVENT_ENABLE**(ev)
|
|
EL3->EL2: success
|
|
EL2->EL3: **SDEI_PE_UNMASK**()
|
|
EL3->EL2: 1
|
|
|
|
... <<Business as usual>> ...
|
|
|
|
SDEI-->EL3: SDEI interrupt
|
|
activate SDEI #salmon
|
|
activate EL3 #red
|
|
note over EL3: Prepare SDEI dispatch
|
|
EL3->EL2: dispatch
|
|
activate EL2 #salmon
|
|
note over EL2: SDEI handler
|
|
EL2->EL3: **SDEI_EVENT_COMPLETE()**
|
|
deactivate EL2
|
|
note over EL3: Complete SDEI dispatch
|
|
EL3-->SDEI: EOI
|
|
deactivate SDEI
|
|
EL3->EL2: resumes preempted execution
|
|
deactivate EL3
|
|
|
|
... <<Normal execution resumes>> ...
|
|
|
|
@enduml
|
|
|