mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-12-11 17:00:37 +00:00
bbe787a0af
Compared to version 10 this fixes a bunch of formatting issues, mostly
around structs/classes with attributes like [[gnu::packed]], and
incorrect insertion of spaces in parameter types ("T &"/"T &&").
I also removed a bunch of // clang-format off/on and FIXME comments that
are no longer relevant - on the other hand it tried to destroy a couple of
neatly formatted comments, so I had to add some as well.
107 lines
4.4 KiB
C++
107 lines
4.4 KiB
C++
/*
|
|
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <Kernel/Interrupts/IRQController.h>
|
|
#include <Kernel/VM/TypedMapping.h>
|
|
|
|
namespace Kernel {
|
|
struct [[gnu::packed]] ioapic_mmio_regs {
|
|
volatile u32 select;
|
|
u32 reserved[3];
|
|
volatile u32 window;
|
|
};
|
|
|
|
class PCIInterruptOverrideMetadata {
|
|
public:
|
|
PCIInterruptOverrideMetadata(u8 bus_id, u8 polarity, u8 trigger_mode, u8 source_irq, u32 ioapic_id, u16 ioapic_int_pin);
|
|
u8 bus() const { return m_bus_id; }
|
|
u8 polarity() const { return m_polarity; }
|
|
u8 trigger_mode() const { return m_trigger_mode; }
|
|
u8 pci_interrupt_pin() const { return m_pci_interrupt_pin; }
|
|
u8 pci_device_number() const { return m_pci_device_number; }
|
|
u32 ioapic_id() const { return m_ioapic_id; }
|
|
u16 ioapic_interrupt_pin() const { return m_ioapic_interrupt_pin; }
|
|
|
|
private:
|
|
const u8 m_bus_id;
|
|
const u8 m_polarity;
|
|
const u8 m_trigger_mode;
|
|
const u8 m_pci_interrupt_pin;
|
|
const u8 m_pci_device_number;
|
|
const u32 m_ioapic_id;
|
|
const u16 m_ioapic_interrupt_pin;
|
|
};
|
|
|
|
class IOAPIC final : public IRQController {
|
|
public:
|
|
IOAPIC(PhysicalAddress, u32 gsi_base);
|
|
virtual void enable(const GenericInterruptHandler&) override;
|
|
virtual void disable(const GenericInterruptHandler&) override;
|
|
virtual void hard_disable() override;
|
|
virtual void eoi(const GenericInterruptHandler&) const override;
|
|
virtual void spurious_eoi(const GenericInterruptHandler&) const override;
|
|
virtual bool is_vector_enabled(u8 number) const override;
|
|
virtual bool is_enabled() const override;
|
|
virtual u16 get_isr() const override;
|
|
virtual u16 get_irr() const override;
|
|
virtual u32 gsi_base() const override { return m_gsi_base; }
|
|
virtual size_t interrupt_vectors_count() const { return m_redirection_entries_count; }
|
|
virtual const char* model() const override { return "IOAPIC"; };
|
|
virtual IRQControllerType type() const override { return IRQControllerType::i82093AA; }
|
|
|
|
private:
|
|
void configure_redirection_entry(int index, u8 interrupt_vector, u8 delivery_mode, bool logical_destination, bool active_low, bool trigger_level_mode, bool masked, u8 destination) const;
|
|
void reset_redirection_entry(int index) const;
|
|
void map_interrupt_redirection(u8 interrupt_vector);
|
|
void reset_all_redirection_entries() const;
|
|
|
|
void mask_all_redirection_entries() const;
|
|
void mask_redirection_entry(u8 index) const;
|
|
void unmask_redirection_entry(u8 index) const;
|
|
bool is_redirection_entry_masked(u8 index) const;
|
|
|
|
u8 read_redirection_entry_vector(u8 index) const;
|
|
Optional<int> find_redirection_entry_by_vector(u8 vector) const;
|
|
void configure_redirections() const;
|
|
|
|
void write_register(u32 index, u32 value) const;
|
|
u32 read_register(u32 index) const;
|
|
|
|
virtual void initialize() override;
|
|
void map_isa_interrupts();
|
|
void map_pci_interrupts();
|
|
void isa_identity_map(int index);
|
|
|
|
PhysicalAddress m_address;
|
|
mutable TypedMapping<ioapic_mmio_regs> m_regs;
|
|
u32 m_gsi_base;
|
|
u8 m_id;
|
|
u8 m_version;
|
|
size_t m_redirection_entries_count;
|
|
};
|
|
}
|