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kern: revamp KMemoryRegionType to better encode derivation hierarchies

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Michael Scire 2020-08-23 13:19:45 -07:00 • committed by SciresM
parent d50c7c5c79
commit 1983f86875
17 changed files with 746 additions and 426 deletions
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25
libraries/libmesosphere/include/mesosphere/arch/arm/kern_k_memory_region_device_types.inc Normal file
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/*
* Copyright (c) 2018-2020 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/>.
*/
/* All architectures must define NumArchitectureDeviceRegions. */
constexpr inline const auto NumArchitectureDeviceRegions = 3;
constexpr inline const auto KMemoryRegionType_Uart = KMemoryRegionType_ArchDeviceBase.DeriveSparse(0, NumArchitectureDeviceRegions, 0);
constexpr inline const auto KMemoryRegionType_InterruptCpuInterface = KMemoryRegionType_ArchDeviceBase.DeriveSparse(0, NumArchitectureDeviceRegions, 1).SetAttribute(KMemoryRegionAttr_NoUserMap);
constexpr inline const auto KMemoryRegionType_InterruptDistributor = KMemoryRegionType_ArchDeviceBase.DeriveSparse(0, NumArchitectureDeviceRegions, 2).SetAttribute(KMemoryRegionAttr_NoUserMap);
static_assert(KMemoryRegionType_Uart .GetValue() == (0x1D));
static_assert(KMemoryRegionType_InterruptCpuInterface.GetValue() == (0x2D | KMemoryRegionAttr_NoUserMap));
static_assert(KMemoryRegionType_InterruptDistributor .GetValue() == (0x4D | KMemoryRegionAttr_NoUserMap));