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b02ee664e7
To do this we also need to get rid of LockRefPtrs in the USB code as well. Most of the SysFS nodes are statically generated during boot and are not mutated afterwards. The same goes for general device code - once we generate the appropriate SysFS nodes, we almost never mutate the node pointers afterwards, making locking unnecessary.
40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefPtr.h>
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#include <AK/Types.h>
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#include <AK/Vector.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/Firmware/Directory.h>
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#include <Kernel/KBuffer.h>
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#include <Kernel/PhysicalAddress.h>
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namespace Kernel {
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class BIOSSysFSComponent final : public SysFSComponent {
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public:
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enum class Type {
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DMIEntryPoint,
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SMBIOSTable,
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};
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public:
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static NonnullRefPtr<BIOSSysFSComponent> must_create(Type, PhysicalAddress, size_t blob_size);
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virtual StringView name() const override;
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virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const override;
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private:
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ErrorOr<NonnullOwnPtr<KBuffer>> try_to_generate_buffer() const;
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BIOSSysFSComponent(Type, PhysicalAddress, size_t blob_size);
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virtual size_t size() const override { return m_blob_length; }
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PhysicalAddress const m_blob_paddr;
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size_t const m_blob_length { 0 };
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Type const m_type { Type::DMIEntryPoint };
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};
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}
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