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Atmosphere/libraries/libexosphere/include/exosphere/hw/hw_arm64_cache.hpp

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/*
* 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 <vapours.hpp>
namespace ams::hw::arch::arm64 {
#if defined(ATMOSPHERE_CPU_ARM_CORTEX_A57) || defined(ATMOSPHERE_CPU_ARM_CORTEX_A53)
constexpr inline size_t InstructionCacheLineSize = 0x40;
constexpr inline size_t DataCacheLineSize = 0x40;
constexpr inline size_t NumPerformanceCounters = 6;
#else
#error "Unknown CPU for cache line sizes"
#endif
ALWAYS_INLINE void InvalidateEntireTlb() {
__asm__ __volatile__("tlbi alle3is" ::: "memory");
}
ALWAYS_INLINE void InvalidateDataCacheLine(void *ptr) {
__asm __volatile__("dc ivac, %[ptr]" :: [ptr]"r"(ptr) : "memory");
}
ALWAYS_INLINE void FlushDataCacheLine(void *ptr) {
__asm __volatile__("dc civac, %[ptr]" :: [ptr]"r"(ptr) : "memory");
}
ALWAYS_INLINE void InvalidateEntireInstructionCache() {
__asm__ __volatile__("ic iallu" ::: "memory");
}
ALWAYS_INLINE void InvalidateTlb(uintptr_t address) {
const uintptr_t page_index = address / 4_KB;
__asm__ __volatile__("tlbi vae3is, %[page_index]" :: [page_index]"r"(page_index) : "memory");
}
ALWAYS_INLINE void InvalidateTlbLastLevel(uintptr_t address) {
const uintptr_t page_index = address / 4_KB;
__asm__ __volatile__("tlbi vale3is, %[page_index]" :: [page_index]"r"(page_index) : "memory");
}
void FlushDataCache(const void *ptr, size_t size);
void InvalidateDataCache(const void *ptr, size_t size);
}