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ams: support building unit test programs on windows/linux/macos

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Michael Scire 2022-03-06 12:08:20 -08:00 • committed by SciresM
parent 9a38be201a
commit 64a97576d0
756 changed files with 33359 additions and 9372 deletions
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89
libraries/libvapours/source/dd/impl/dd_cache_impl.os.linux.hpp Normal file
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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
#if defined(ATMOSPHERE_IS_STRATOSPHERE)
#include <stratosphere.hpp>
#else
#include <vapours.hpp>
#endif
namespace ams::dd::impl {
void StoreDataCacheImpl(void *addr, size_t size) {
#if defined(ATMOSPHERE_ARCH_ARM64)
/* On aarch64, we can use cache maintenance instructions. */
/* Get cache line size. */
uintptr_t ctr_el0 = 0;
__asm__ __volatile__("mrs %[ctr_el0], ctr_el0" : [ctr_el0]"=r"(ctr_el0));
const uintptr_t cache_line_size = 4 << ((ctr_el0 >> 16) & 0xF);
/* Invalidate the cache. */
const uintptr_t start_addr = reinterpret_cast<uintptr_t>(addr) & ~(cache_line_size - 1);
const uintptr_t end_addr = reinterpret_cast<uintptr_t>(addr) + size;
for (uintptr_t cur = start_addr; cur < end_addr; cur += cache_line_size) {
__asm__ __volatile__("dc cvac, %[cur]" : : [cur]"r"(cur));
}
/* Add a memory barrier. */
__asm__ __volatile__("dsb sy" ::: "memory");
#elif defined(ATMOSPHERE_ARCH_X64) || defined(ATMOSPHERE_ARCH_X86)
/* Don't do anything, cache maintenance isn't available/relevant to userland. */
AMS_UNUSED(addr, size);
#else
#error "Unknown architecture for linux dd::StoreDataCacheImpl"
#endif
}
void FlushDataCacheImpl(void *addr, size_t size) {
#if defined(ATMOSPHERE_ARCH_ARM64)
/* On aarch64, we can use cache maintenance instructions. */
/* Get cache line size. */
uintptr_t ctr_el0 = 0;
__asm__ __volatile__("mrs %[ctr_el0], ctr_el0" : [ctr_el0]"=r"(ctr_el0));
const uintptr_t cache_line_size = 4 << ((ctr_el0 >> 16) & 0xF);
/* Invalidate the cache. */
const uintptr_t start_addr = reinterpret_cast<uintptr_t>(addr) & ~(cache_line_size - 1);
const uintptr_t end_addr = reinterpret_cast<uintptr_t>(addr) + size;
for (uintptr_t cur = start_addr; cur < end_addr; cur += cache_line_size) {
__asm__ __volatile__("dc civac, %[cur]" : : [cur]"r"(cur));
}
/* Add a memory barrier. */
__asm__ __volatile__("dsb sy" ::: "memory");
#elif defined(ATMOSPHERE_ARCH_X64) || defined(ATMOSPHERE_ARCH_X86)
/* Don't do anything, cache maintenance isn't available/relevant to userland. */
AMS_UNUSED(addr, size);
#else
#error "Unknown architecture for linux dd::FlushDataCacheImpl"
#endif
}
void InvalidateDataCacheImpl(void *addr, size_t size) {
#if defined(ATMOSPHERE_ARCH_ARM64)
/* Just perform a flush, which is clean + invalidate. */
return FlushDataCacheImpl(addr, size);
#elif defined(ATMOSPHERE_ARCH_X64) || defined(ATMOSPHERE_ARCH_X86)
/* Don't do anything, cache maintenance isn't available/relevant to userland. */
AMS_UNUSED(addr, size);
#else
#error "Unknown architecture for linux dd::InvalidateDataCacheImpl"
#endif
}
}