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author | Narr the Reg <juangerman-13@hotmail.com> | 2022-11-20 16:31:20 +0100 |
---|---|---|
committer | GitHub <noreply@github.com> | 2022-11-20 16:31:20 +0100 |
commit | db7bcd51ae09c4ef25e08096de563903f61e2380 (patch) | |
tree | 5ae9977b48e1aff118fae3ebffb215b0b4afa887 /src/common | |
parent | service: nfc: Implement nfc user (diff) | |
parent | Merge pull request #9238 from german77/cabinet_applet (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/common/CMakeLists.txt | 2 | ||||
-rw-r--r-- | src/common/atomic_helpers.h | 1 | ||||
-rw-r--r-- | src/common/cache_management.cpp | 60 | ||||
-rw-r--r-- | src/common/cache_management.h | 27 |
4 files changed, 90 insertions, 0 deletions
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt index c0555f840..b7c15c191 100644 --- a/src/common/CMakeLists.txt +++ b/src/common/CMakeLists.txt @@ -34,6 +34,8 @@ add_library(common STATIC bit_util.h cityhash.cpp cityhash.h + cache_management.cpp + cache_management.h common_funcs.h common_types.h concepts.h diff --git a/src/common/atomic_helpers.h b/src/common/atomic_helpers.h index bef5015c1..aef3b66a4 100644 --- a/src/common/atomic_helpers.h +++ b/src/common/atomic_helpers.h @@ -156,6 +156,7 @@ AE_FORCEINLINE void compiler_fence(memory_order order) AE_NO_TSAN { break; default: assert(false); + break; } } diff --git a/src/common/cache_management.cpp b/src/common/cache_management.cpp new file mode 100644 index 000000000..57810b76a --- /dev/null +++ b/src/common/cache_management.cpp @@ -0,0 +1,60 @@ +// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include <cstring> + +#include "alignment.h" +#include "cache_management.h" +#include "common_types.h" + +namespace Common { + +#if defined(ARCHITECTURE_x86_64) + +// Most cache operations are no-ops on x86 + +void DataCacheLineCleanByVAToPoU(void* start, size_t size) {} +void DataCacheLineCleanAndInvalidateByVAToPoC(void* start, size_t size) {} +void DataCacheLineCleanByVAToPoC(void* start, size_t size) {} +void DataCacheZeroByVA(void* start, size_t size) { + std::memset(start, 0, size); +} + +#elif defined(ARCHITECTURE_arm64) + +// BS/DminLine is log2(cache size in words), we want size in bytes +#define EXTRACT_DMINLINE(ctr_el0) (1 << ((((ctr_el0) >> 16) & 0xf) + 2)) +#define EXTRACT_BS(dczid_el0) (1 << (((dczid_el0)&0xf) + 2)) + +#define DEFINE_DC_OP(op_name, function_name) \ + void function_name(void* start, size_t size) { \ + size_t ctr_el0; \ + asm volatile("mrs %[ctr_el0], ctr_el0\n\t" : [ctr_el0] "=r"(ctr_el0)); \ + size_t cacheline_size = EXTRACT_DMINLINE(ctr_el0); \ + uintptr_t va_start = reinterpret_cast<uintptr_t>(start); \ + uintptr_t va_end = va_start + size; \ + for (uintptr_t va = va_start; va < va_end; va += cacheline_size) { \ + asm volatile("dc " #op_name ", %[va]\n\t" : : [va] "r"(va) : "memory"); \ + } \ + } + +#define DEFINE_DC_OP_DCZID(op_name, function_name) \ + void function_name(void* start, size_t size) { \ + size_t dczid_el0; \ + asm volatile("mrs %[dczid_el0], dczid_el0\n\t" : [dczid_el0] "=r"(dczid_el0)); \ + size_t cacheline_size = EXTRACT_BS(dczid_el0); \ + uintptr_t va_start = reinterpret_cast<uintptr_t>(start); \ + uintptr_t va_end = va_start + size; \ + for (uintptr_t va = va_start; va < va_end; va += cacheline_size) { \ + asm volatile("dc " #op_name ", %[va]\n\t" : : [va] "r"(va) : "memory"); \ + } \ + } + +DEFINE_DC_OP(cvau, DataCacheLineCleanByVAToPoU); +DEFINE_DC_OP(civac, DataCacheLineCleanAndInvalidateByVAToPoC); +DEFINE_DC_OP(cvac, DataCacheLineCleanByVAToPoC); +DEFINE_DC_OP_DCZID(zva, DataCacheZeroByVA); + +#endif + +} // namespace Common diff --git a/src/common/cache_management.h b/src/common/cache_management.h new file mode 100644 index 000000000..e467b87e4 --- /dev/null +++ b/src/common/cache_management.h @@ -0,0 +1,27 @@ +// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include "stdlib.h" + +namespace Common { + +// Data cache instructions enabled at EL0 by SCTLR_EL1.UCI. +// VA = virtual address +// PoC = point of coherency +// PoU = point of unification + +// dc cvau +void DataCacheLineCleanByVAToPoU(void* start, size_t size); + +// dc civac +void DataCacheLineCleanAndInvalidateByVAToPoC(void* start, size_t size); + +// dc cvac +void DataCacheLineCleanByVAToPoC(void* start, size_t size); + +// dc zva +void DataCacheZeroByVA(void* start, size_t size); + +} // namespace Common |