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https://github.com/Atmosphere-NX/Atmosphere.git
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96f95b9f95
* result: try out some experimental shenanigans * result: sketch out some more shenanigans * result: see what it looks like to convert kernel to use result conds instead of guards * make rest of kernel use experimental new macro-ing
60 lines
2.6 KiB
C++
60 lines
2.6 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <mesosphere/kern_common.hpp>
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#include <mesosphere/kern_k_auto_object.hpp>
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#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 {
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class KDeviceAddressSpace final : public KAutoObjectWithSlabHeapAndContainer<KDeviceAddressSpace, KAutoObjectWithList> {
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MESOSPHERE_AUTOOBJECT_TRAITS(KDeviceAddressSpace, KAutoObject);
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private:
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KLightLock m_lock;
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KDevicePageTable m_table;
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u64 m_space_address;
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u64 m_space_size;
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bool m_is_initialized;
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public:
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explicit KDeviceAddressSpace() : m_is_initialized(false) { /* ... */ }
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Result Initialize(u64 address, u64 size);
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void Finalize();
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bool IsInitialized() const { return m_is_initialized; }
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static void PostDestroy(uintptr_t arg) { MESOSPHERE_UNUSED(arg); /* ... */ }
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Result Attach(ams::svc::DeviceName device_name);
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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) {
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R_RETURN(this->Map(page_table, process_address, size, device_address, device_perm, false));
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}
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Result MapAligned(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm) {
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R_RETURN(this->Map(page_table, process_address, size, device_address, device_perm, true));
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}
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Result Unmap(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address);
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private:
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Result Map(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm, bool is_aligned);
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public:
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static void Initialize();
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};
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}
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