From 7d1c3a3f59d4dd55c012bdd46d4ec092d141e814 Mon Sep 17 00:00:00 2001 From: Liam Date: Sun, 29 Jan 2023 15:03:29 -0500 Subject: kernel: add KDeviceAddressSpace --- src/core/hle/kernel/k_device_address_space.h | 60 ++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/core/hle/kernel/k_device_address_space.h (limited to 'src/core/hle/kernel/k_device_address_space.h') diff --git a/src/core/hle/kernel/k_device_address_space.h b/src/core/hle/kernel/k_device_address_space.h new file mode 100644 index 000000000..4709df995 --- /dev/null +++ b/src/core/hle/kernel/k_device_address_space.h @@ -0,0 +1,60 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include + +#include "common/common_types.h" +#include "core/hle/kernel/k_page_table.h" +#include "core/hle/kernel/slab_helpers.h" +#include "core/hle/result.h" + +namespace Kernel { + +class KDeviceAddressSpace final + : public KAutoObjectWithSlabHeapAndContainer { + KERNEL_AUTOOBJECT_TRAITS(KDeviceAddressSpace, KAutoObject); + +public: + explicit KDeviceAddressSpace(KernelCore& kernel); + ~KDeviceAddressSpace(); + + Result Initialize(u64 address, u64 size); + void Finalize(); + + bool IsInitialized() const { + return m_is_initialized; + } + static void PostDestroy(uintptr_t arg) {} + + Result Attach(Svc::DeviceName device_name); + Result Detach(Svc::DeviceName device_name); + + Result MapByForce(KPageTable* page_table, VAddr process_address, size_t size, + u64 device_address, u32 option) { + R_RETURN(this->Map(page_table, process_address, size, device_address, option, false)); + } + + Result MapAligned(KPageTable* page_table, VAddr process_address, size_t size, + u64 device_address, u32 option) { + R_RETURN(this->Map(page_table, process_address, size, device_address, option, true)); + } + + Result Unmap(KPageTable* page_table, VAddr process_address, size_t size, u64 device_address); + + static void Initialize(); + +private: + Result Map(KPageTable* page_table, VAddr process_address, size_t size, u64 device_address, + u32 option, bool is_aligned); + +private: + KLightLock m_lock; + // KDevicePageTable m_table; + u64 m_space_address{}; + u64 m_space_size{}; + bool m_is_initialized{}; +}; + +} // namespace Kernel -- cgit v1.2.3