LadybirdBrowser/ladybird
1
1
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-01-08 20:32:56 +03:00
Code Issues Packages Projects Releases Wiki Activity

Kernel/Interrupts: Enumerate nested handlers in a shared handler

Browse Source 
When asked to enumerate all interrupt handlers, display all shared
handlers within it instead of just returning the responsible handler of
them.
This commit is contained in:
Liav A 2021-06-05 07:50:27 +03:00 committed by Andreas Kling
parent dcb55db99b
commit 030999d269
Notes: sideshowbarker 2024-07-18 12:07:39 +09:00 
Author: https://github.com/supercomputer7
Commit: https://github.com/SerenityOS/serenity/commit/030999d2697
Pull-request: https://github.com/SerenityOS/serenity/pull/7799
3 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Kernel/Interrupts/InterruptManagement.cpp
View File

@ -13,6 +13,7 @@
#include <Kernel/Interrupts/IOAPIC.h>
#include <Kernel/Interrupts/InterruptManagement.h>
#include <Kernel/Interrupts/PIC.h>
#include <Kernel/Interrupts/SharedIRQHandler.h>
#include <Kernel/Interrupts/SpuriousInterruptHandler.h>
#include <Kernel/Interrupts/UnhandledInterruptHandler.h>
#include <Kernel/VM/TypedMapping.h>
@ -49,6 +50,10 @@ void InterruptManagement::enumerate_interrupt_handlers(Function<void(GenericInte
{
for (int i = 0; i < GENERIC_INTERRUPT_HANDLERS_COUNT; i++) {
auto& handler = get_interrupt_handler(i);
if (handler.type() == HandlerType::SharedIRQHandler) {
static_cast<SharedIRQHandler&>(handler).enumerate_handlers(callback);
continue;
}
if (handler.type() != HandlerType::UnhandledInterruptHandler)
callback(handler);
}

8
Kernel/Interrupts/SharedIRQHandler.cpp
View File

@ -42,6 +42,14 @@ bool SharedIRQHandler::eoi()
return true;
}
void SharedIRQHandler::enumerate_handlers(Function<void(GenericInterruptHandler&)>& callback)
{
for (auto* handler : m_handlers) {
VERIFY(handler);
callback(*handler);
}
}
SharedIRQHandler::SharedIRQHandler(u8 irq)
: GenericInterruptHandler(irq)
, m_responsible_irq_controller(InterruptManagement::the().get_responsible_irq_controller(irq))

2
Kernel/Interrupts/SharedIRQHandler.h
View File

@ -26,6 +26,8 @@ public:
virtual bool eoi() override;
void enumerate_handlers(Function<void(GenericInterruptHandler&)>&);
virtual size_t sharing_devices_count() const override { return m_handlers.size(); }
virtual bool is_shared_handler() const override { return true; }
virtual bool is_sharing_with_others() const override { return false; }