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

63 lines
2.5 KiB
C++
Raw Normal View History

/*
* Copyright (c) Atmosphère-NX
*
* 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>
namespace ams::kern {
class KProcess;
class KIoPool;
class KIoRegion final : public KAutoObjectWithSlabHeapAndContainer<KIoRegion, KAutoObjectWithList> {
MESOSPHERE_AUTOOBJECT_TRAITS(KIoRegion, KAutoObject);
private:
friend class KProcess;
friend class KIoPool;
private:
KLightLock m_lock;
KIoPool *m_pool;
KPhysicalAddress m_physical_address;
size_t m_size;
ams::svc::MemoryMapping m_mapping;
2021-10-06 00:16:54 +02:00
ams::svc::MemoryPermission m_permission;
bool m_is_initialized;
bool m_is_mapped;
util::IntrusiveListNode m_process_list_node;
util::IntrusiveListNode m_pool_list_node;
public:
explicit KIoRegion() : m_pool(nullptr), m_is_initialized(false) { /* ... */ }
Result Initialize(KIoPool *pool, KPhysicalAddress phys_addr, size_t size, ams::svc::MemoryMapping mapping, ams::svc::MemoryPermission perm);
virtual void Finalize() override;
virtual bool IsInitialized() const override { return m_is_initialized; }
static void PostDestroy(uintptr_t arg) { MESOSPHERE_UNUSED(arg); /* ... */ }
Result Map(KProcessAddress address, size_t size, ams::svc::MemoryPermission map_perm);
Result Unmap(KProcessAddress address, size_t size);
bool Overlaps(KPhysicalAddress address, size_t size) const {
return m_physical_address <= (address + size - 1) && address <= (m_physical_address + m_size - 1);
}
ALWAYS_INLINE KPhysicalAddress GetAddress() const { return m_physical_address; }
ALWAYS_INLINE size_t GetSize() const { return m_size; }
};
}