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Kernel: Move Kernel/Memory/ code into Kernel::Memory namespace

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This commit is contained in:
Andreas Kling 2021-08-06 13:49:36 +02:00
parent a1d7ebf85a
commit 93d98d4976
153 changed files with 473 additions and 467 deletions
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2
Kernel/Devices/KCOVDevice.cpp
View file

@ -129,7 +129,7 @@ KResult KCOVDevice::ioctl(FileDescription&, unsigned request, Userspace<void*> a
return return_value;
}
KResultOr<Region*> KCOVDevice::mmap(Process& process, FileDescription&, const Range& range, u64 offset, int prot, bool shared)
KResultOr<Memory::Region*> KCOVDevice::mmap(Process& process, FileDescription&, Memory::Range const& range, u64 offset, int prot, bool shared)
{
auto pid = process.pid();
auto maybe_kcov_instance = proc_instance->get(pid);

2
Kernel/Devices/KCOVDevice.h
View file

@ -22,7 +22,7 @@ public:
static void free_process();
// ^File
KResultOr<Region*> mmap(Process&, FileDescription&, const Range&, u64 offset, int prot, bool shared) override;
KResultOr<Memory::Region*> mmap(Process&, FileDescription&, Memory::Range const&, u64 offset, int prot, bool shared) override;
KResultOr<NonnullRefPtr<FileDescription>> open(int options) override;
// ^Device

6
Kernel/Devices/KCOVInstance.cpp
View file

@ -22,20 +22,20 @@ KResult KCOVInstance::buffer_allocate(size_t buffer_size_in_entries)
// first entry contains index of last PC
this->m_buffer_size_in_entries = buffer_size_in_entries - 1;
this->m_buffer_size_in_bytes = page_round_up(buffer_size_in_entries * KCOV_ENTRY_SIZE);
this->m_buffer_size_in_bytes = Memory::page_round_up(buffer_size_in_entries * KCOV_ENTRY_SIZE);
// one single vmobject is representing the buffer
// - we allocate one kernel region using that vmobject
// - when an mmap call comes in, we allocate another userspace region,
// backed by the same vmobject
this->vmobject = AnonymousVMObject::try_create_with_size(
this->vmobject = Memory::AnonymousVMObject::try_create_with_size(
this->m_buffer_size_in_bytes, AllocationStrategy::AllocateNow);
if (!this->vmobject)
return ENOMEM;
this->m_kernel_region = MM.allocate_kernel_region_with_vmobject(
*this->vmobject, this->m_buffer_size_in_bytes, String::formatted("kcov_{}", this->m_pid),
Region::Access::Read | Region::Access::Write);
Memory::Region::Access::Read | Memory::Region::Access::Write);
if (!this->m_kernel_region)
return ENOMEM;

4
Kernel/Devices/KCOVInstance.h
View file

@ -42,7 +42,7 @@ public:
TRACING = 2,
} state;
RefPtr<AnonymousVMObject> vmobject;
RefPtr<Memory::AnonymousVMObject> vmobject;
private:
ProcessID m_pid = { 0 };
@ -51,7 +51,7 @@ private:
kcov_pc_t* m_buffer = { nullptr };
// Here to ensure it's not garbage collected at the end of open()
OwnPtr<Region> m_kernel_region;
OwnPtr<Memory::Region> m_kernel_region;
};
}

4
Kernel/Devices/MemoryDevice.cpp
View file

@ -37,7 +37,7 @@ void MemoryDevice::did_seek(FileDescription&, off_t)
TODO();
}
KResultOr<Region*> MemoryDevice::mmap(Process& process, FileDescription&, const Range& range, u64 offset, int prot, bool shared)
KResultOr<Memory::Region*> MemoryDevice::mmap(Process& process, FileDescription&, Memory::Range const& range, u64 offset, int prot, bool shared)
{
auto viewed_address = PhysicalAddress(offset);
@ -47,7 +47,7 @@ KResultOr<Region*> MemoryDevice::mmap(Process& process, FileDescription&, const
return EINVAL;
}
auto vmobject = AnonymousVMObject::try_create_for_physical_range(viewed_address, range.size());
auto vmobject = Memory::AnonymousVMObject::try_create_for_physical_range(viewed_address, range.size());
if (!vmobject)
return ENOMEM;
dbgln("MemoryDevice: Mapped physical memory at {} for range of {} bytes", viewed_address, range.size());

4
Kernel/Devices/MemoryDevice.h
View file

@ -19,7 +19,7 @@ public:
static NonnullRefPtr<MemoryDevice> must_create();
~MemoryDevice();
virtual KResultOr<Region*> mmap(Process&, FileDescription&, const Range&, u64 offset, int prot, bool shared) override;
virtual KResultOr<Memory::Region*> mmap(Process&, FileDescription&, Memory::Range const&, u64 offset, int prot, bool shared) override;
// ^Device
virtual mode_t required_mode() const override { return 0660; }
@ -36,7 +36,7 @@ private:
virtual void did_seek(FileDescription&, off_t) override;
bool is_allowed_range(PhysicalAddress, const Range&) const;
bool is_allowed_range(PhysicalAddress, Memory::Range const&) const;
};
}

4
Kernel/Devices/SB16.cpp
View file

@ -238,10 +238,10 @@ KResultOr<size_t> SB16::write(FileDescription&, u64, const UserOrKernelBuffer& d
if (!page)
return ENOMEM;
auto nonnull_page = page.release_nonnull();
auto vmobject = AnonymousVMObject::try_create_with_physical_pages({ &nonnull_page, 1 });
auto vmobject = Memory::AnonymousVMObject::try_create_with_physical_pages({ &nonnull_page, 1 });
if (!vmobject)
return ENOMEM;
m_dma_region = MM.allocate_kernel_region_with_vmobject(*vmobject, PAGE_SIZE, "SB16 DMA buffer", Region::Access::Write);
m_dma_region = MM.allocate_kernel_region_with_vmobject(*vmobject, PAGE_SIZE, "SB16 DMA buffer", Memory::Region::Access::Write);
if (!m_dma_region)
return ENOMEM;
}

2
Kernel/Devices/SB16.h
View file

@ -55,7 +55,7 @@ private:
void set_irq_register(u8 irq_number);
void set_irq_line(u8 irq_number);
OwnPtr<Region> m_dma_region;
OwnPtr<Memory::Region> m_dma_region;
int m_major_version { 0 };
WaitQueue m_irq_queue;