Atmosphere/libraries/libmesosphere/include/mesosphere/kern_k_device_address_space.hpp

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/*
* Copyright (c) Atmosphère-NX
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*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <mesosphere/kern_common.hpp>
#include <mesosphere/kern_k_auto_object.hpp>
#include <mesosphere/kern_slab_helpers.hpp>
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#include <mesosphere/kern_select_device_page_table.hpp>
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namespace ams::kern {
class KDeviceAddressSpace final : public KAutoObjectWithSlabHeapAndContainer<KDeviceAddressSpace, KAutoObjectWithList> {
MESOSPHERE_AUTOOBJECT_TRAITS(KDeviceAddressSpace, KAutoObject);
private:
KLightLock m_lock;
KDevicePageTable m_table;
u64 m_space_address;
u64 m_space_size;
bool m_is_initialized;
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public:
constexpr KDeviceAddressSpace() : m_lock(), m_table(), m_space_address(), m_space_size(), m_is_initialized() { /* ... */ }
Result Initialize(u64 address, u64 size);
virtual void Finalize() override;
virtual bool IsInitialized() const override { return m_is_initialized; }
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static void PostDestroy(uintptr_t arg) { MESOSPHERE_UNUSED(arg); /* ... */ }
Result Attach(ams::svc::DeviceName device_name);
Result Detach(ams::svc::DeviceName device_name);
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Result MapByForce(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm) {
return this->Map(page_table, process_address, size, device_address, device_perm, false);
}
Result MapAligned(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm) {
return this->Map(page_table, process_address, size, device_address, device_perm, true);
}
Result Unmap(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address);
private:
Result Map(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm, bool is_aligned);
public:
static void Initialize();
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};
}