mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-23 12:51:13 +00:00
191 lines
8.5 KiB
C++
191 lines
8.5 KiB
C++
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/*
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* Copyright (c) 2018-2020 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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#include <stratosphere.hpp>
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#include "impl/dd_device_address_space_impl.hpp"
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namespace ams::dd {
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Result CreateDeviceAddressSpace(DeviceAddressSpaceType *das, u64 address, u64 size) {
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/* Check pre-conditions. */
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AMS_ASSERT(util::IsAligned(address, os::MemoryPageSize));
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AMS_ASSERT(util::IsAligned(size, os::MemoryPageSize));
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AMS_ASSERT(size > 0);
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/* Ensure we leave in a consistent state. */
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auto state_guard = SCOPE_GUARD { das->state = DeviceAddressSpaceType::State_NotInitialized; };
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/* Create the address space. */
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DeviceAddressSpaceHandle handle;
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R_TRY(impl::DeviceAddressSpaceImpl::Create(std::addressof(handle), address, size));
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/* Set the values in the das. */
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das->device_handle = handle;
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das->is_handle_managed = true;
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das->state = DeviceAddressSpaceType::State_Initialized;
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/* We succeeded. */
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state_guard.Cancel();
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return ResultSuccess();
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}
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Result CreateDeviceAddressSpace(DeviceAddressSpaceType *das, u64 size) {
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return CreateDeviceAddressSpace(das, 0, size);
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}
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void DestroyDeviceAddressSpace(DeviceAddressSpaceType *das) {
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/* Check pre-conditions. */
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AMS_ASSERT(das->state == DeviceAddressSpaceType::State_Initialized);
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/* Destroy the handle. */
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if (das->is_handle_managed) {
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impl::DeviceAddressSpaceImpl::Close(das->device_handle);
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}
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das->device_handle = 0;
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das->is_handle_managed = false;
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das->state = DeviceAddressSpaceType::State_NotInitialized;
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}
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void AttachDeviceAddressSpaceHandle(DeviceAddressSpaceType *das, Handle handle, bool managed) {
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/* Check pre-conditions. */
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AMS_ASSERT(handle != svc::InvalidHandle);
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das->device_handle = handle;
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das->is_handle_managed = managed;
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das->state = DeviceAddressSpaceType::State_Initialized;
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}
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Handle GetDeviceAddressSpaceHandle(DeviceAddressSpaceType *das) {
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/* Check pre-conditions. */
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AMS_ASSERT(das->state == DeviceAddressSpaceType::State_Initialized);
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return das->device_handle;
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}
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Result MapDeviceAddressSpaceAligned(DeviceAddressSpaceType *das, ProcessHandle process_handle, u64 process_address, size_t size, DeviceVirtualAddress device_address, MemoryPermission device_perm) {
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/* Check pre-conditions. */
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AMS_ASSERT(das->state == DeviceAddressSpaceType::State_Initialized);
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AMS_ASSERT(util::IsAligned(process_address, os::MemoryPageSize));
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AMS_ASSERT(util::IsAligned(device_address, os::MemoryPageSize));
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AMS_ASSERT(util::IsAligned(size, os::MemoryPageSize));
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AMS_ASSERT(process_address + size > process_address);
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AMS_ASSERT(device_address + size > device_address);
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AMS_ASSERT(size > 0);
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AMS_ASSERT((process_address & (4_MB - 1)) == (device_address & (4_MB - 1)));
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return impl::DeviceAddressSpaceImpl::MapAligned(das->device_handle, process_handle, process_address, size, device_address, device_perm);
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}
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Result MapDeviceAddressSpaceNotAligned(DeviceAddressSpaceType *das, ProcessHandle process_handle, u64 process_address, size_t size, DeviceVirtualAddress device_address, MemoryPermission device_perm) {
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/* Check pre-conditions. */
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AMS_ASSERT(das->state == DeviceAddressSpaceType::State_Initialized);
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AMS_ASSERT(util::IsAligned(process_address, os::MemoryPageSize));
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AMS_ASSERT(util::IsAligned(device_address, os::MemoryPageSize));
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AMS_ASSERT(util::IsAligned(size, os::MemoryPageSize));
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AMS_ASSERT(process_address + size > process_address);
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AMS_ASSERT(device_address + size > device_address);
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AMS_ASSERT(size > 0);
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return impl::DeviceAddressSpaceImpl::MapNotAligned(das->device_handle, process_handle, process_address, size, device_address, device_perm);
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}
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void UnmapDeviceAddressSpace(DeviceAddressSpaceType *das, ProcessHandle process_handle, u64 process_address, size_t size, DeviceVirtualAddress device_address) {
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/* Check pre-conditions. */
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AMS_ASSERT(das->state == DeviceAddressSpaceType::State_Initialized);
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AMS_ASSERT(util::IsAligned(process_address, os::MemoryPageSize));
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AMS_ASSERT(util::IsAligned(device_address, os::MemoryPageSize));
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AMS_ASSERT(util::IsAligned(size, os::MemoryPageSize));
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AMS_ASSERT(process_address + size > process_address);
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AMS_ASSERT(device_address + size > device_address);
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AMS_ASSERT(size > 0);
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return impl::DeviceAddressSpaceImpl::Unmap(das->device_handle, process_handle, process_address, size, device_address);
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}
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void InitializeDeviceAddressSpaceMapInfo(DeviceAddressSpaceMapInfo *info, DeviceAddressSpaceType *das, ProcessHandle process_handle, u64 process_address, size_t size, DeviceVirtualAddress device_address, MemoryPermission device_perm) {
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/* Check pre-conditions. */
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AMS_ASSERT(das->state == DeviceAddressSpaceType::State_Initialized);
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AMS_ASSERT(util::IsAligned(process_address, os::MemoryPageSize));
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AMS_ASSERT(util::IsAligned(device_address, os::MemoryPageSize));
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AMS_ASSERT(util::IsAligned(size, os::MemoryPageSize));
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AMS_ASSERT(process_address + size > process_address);
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AMS_ASSERT(device_address + size > device_address);
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AMS_ASSERT(size > 0);
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info->last_mapped_size = 0;
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info->process_address = process_address;
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info->size = size;
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info->device_start_address = device_address;
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info->device_end_address = device_address + size;
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info->process_handle = process_handle;
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info->device_permission = device_perm;
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info->device_address_space = das;
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}
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Result MapNextDeviceAddressSpaceRegion(size_t *out_mapped_size, DeviceAddressSpaceMapInfo *info) {
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/* Check pre-conditions. */
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AMS_ASSERT(info->last_mapped_size == 0);
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size_t mapped_size = 0;
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if (info->device_start_address < info->device_end_address) {
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R_TRY(impl::DeviceAddressSpaceImpl::MapPartially(std::addressof(mapped_size), info->device_address_space->device_handle, info->process_handle, info->process_address, info->size, info->device_start_address, info->device_permission));
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}
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info->last_mapped_size = mapped_size;
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*out_mapped_size = mapped_size;
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return ResultSuccess();
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}
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void UnmapDeviceAddressSpaceRegion(DeviceAddressSpaceMapInfo *info) {
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/* Check pre-conditions. */
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const size_t last_mapped_size = info->last_mapped_size;
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AMS_ASSERT(last_mapped_size > 0);
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impl::DeviceAddressSpaceImpl::Unmap(info->device_address_space->device_handle, info->process_handle, info->process_address, last_mapped_size, info->device_start_address);
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info->last_mapped_size = 0;
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info->process_address += last_mapped_size;
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info->device_start_address += last_mapped_size;
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}
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u64 GetMappedProcessAddress(DeviceAddressSpaceMapInfo *info) {
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return info->process_address;
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}
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DeviceVirtualAddress GetMappedDeviceVirtualAddress(DeviceAddressSpaceMapInfo *info) {
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return info->device_start_address;
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}
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size_t GetMappedSize(DeviceAddressSpaceMapInfo *info) {
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return info->last_mapped_size;
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}
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Result AttachDeviceAddressSpace(DeviceAddressSpaceType *das, DeviceName device_name) {
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/* Check pre-conditions. */
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AMS_ASSERT(das->state == DeviceAddressSpaceType::State_Initialized);
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return impl::DeviceAddressSpaceImpl::Attach(das, device_name);
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}
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void DetachDeviceAddressSpace(DeviceAddressSpaceType *das, DeviceName device_name) {
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/* Check pre-conditions. */
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AMS_ASSERT(das->state == DeviceAddressSpaceType::State_Initialized);
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return impl::DeviceAddressSpaceImpl::Detach(das, device_name);
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}
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}
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