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218 commits

Author SHA1 Message Date
Liav A
0fc60e41dd Kernel: Use klog() instead of kprintf() 
Also, duplicate data in dbg() and klog() calls were removed.
In addition, leakage of virtual address to kernel log is prevented.
This is done by replacing kprintf() calls to dbg() calls with the
leaked data instead.
Also, other kprintf() calls were replaced with klog().
 2020-03-02 22:23:39 +01:00
Liav A
6f914ed0a4 Kernel: Simplify interrupt management 
The IRQController object is RefCounted, and is shared between the
InterruptManagement class & IRQ handlers' classes.

IRQHandler, SharedIRQHandler & SpuriousInterruptHandler classes
use a responsible IRQ controller directly instead of calling
InterruptManagement for disable(), enable() or eoi().

Also, the initialization process of InterruptManagement is
simplified, so it doesn't rely on an ACPI parser to be initialized.
 2020-02-29 00:12:46 +01:00
Liav A
976562307a Kernel: Initialize Spurious IRQ handlers in switch_to_pic_mode() 2020-02-29 00:12:46 +01:00
Liav A
800a46ace9 Kernel: Delete unnecessary register & unregister calls 2020-02-29 00:12:46 +01:00
Liav A
b2e5425426 Kernel: Add SpuriousInterruptHandler class 
This type of interrupt handler should handle spurious IRQs.
 2020-02-29 00:12:46 +01:00
Liav A
e22ab33a4d Kernel: Add SpuriousInterruptHandler type into HandlerPurpose 2020-02-29 00:12:46 +01:00
Liav A
946d9b8c24 IOAPIC: Use dbg() instead of dbgprintf() 2020-02-27 13:05:12 +01:00
Liav A
85307dd26e Kernel: Don't use references or pointers to physical addresses 
Now the ACPI & PCI code is more safer, because we don't use raw pointers
or references to objects or data that are located in the physical
address space, so an accidental dereference cannot happen easily.
Instead, we use the PhysicalAddress class to represent those addresses.
 2020-02-24 11:27:03 +01:00
Liav A
fe664965c2 Kernel: Change get_sharing_devices_count() in GenericInterruptHandler 
The new method' name is sharing_devices_count().
The Serenity Coding Style tends to not accept the word "get" in
methods' names if possible.
 2020-02-24 11:27:03 +01:00
Liav A
9e66eb160c Kernel: Add the new APIC namespace 
Also, the enable() function is now correct and will use the right
registers and values. In addition to that, write_register() and
read_registers() are not relying on identity mapping anymore.
 2020-02-24 11:27:03 +01:00
Liav A
12dbb7ca49 Kernel: Add MSIHandler class 
This is a stub for now, since we don't support Message Signaled
Interrupts yet.
 2020-02-24 11:27:03 +01:00
Liav A
9d281b4b15 Kernel: Add UnhandledInterruptHandler class 
This class will be used to represent an IRQ vector handler that wasn't
assigned to any IRQ Handler.
 2020-02-24 11:27:03 +01:00
Liav A
9587f2d3ee Kernel: Add SharedIRQHandler class 
This class represents a shared interrupt handler. This class will not be
created automatically but only if two IRQ Handlers are sharing the same
IRQ number.
 2020-02-24 11:27:03 +01:00
Liav A
dd7522bdb2 Kernel: Add new IRQHandler class 
This class will replace the old IRQHandler class later.
 2020-02-24 11:27:03 +01:00
Liav A
b201b23363 Kernel: Add Interrupt Management and Generic Interrupt Handler 
The GenericInterruptHandler class will be used to represent
an abstract interrupt handler. The InterruptManagement class will
represent a centralized component to manage interrupts.
 2020-02-24 11:27:03 +01:00
Liav A
e760ebcacb Kernel: Add the IOAPIC class 
This class inherits from IRQController class, and represents
the 82093AA IOAPIC chip.
 2020-02-24 11:27:03 +01:00
Liav A
7d59a67504 Kernel: Add the PIC class 
This class inherits from IRQController class, and represents
the common Intel 8259 PIC chip.
 2020-02-24 11:27:03 +01:00
Liav A
b56afbea17 Kernel: Add IRQController class 
This class is an abstraction layer for different IRQ controllers
that are present in a typical system.
 2020-02-24 11:27:03 +01:00