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Vendor Teakra, make emulator own DSP RAM and add DSP RAM to fastmem (#806)

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* DSP: Own DSP RAM and add it to fastmem

* Vendor Teakra

* Add MacOS support to fastmem

* Fix MacOS fastmem paths

* Fix iOS build
This commit is contained in:
wheremyfoodat
2025-08-22 02:12:21 +03:00
committed by GitHub
parent ff100dc5ac
commit 78002be334
132 changed files with 37774 additions and 15 deletions
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28
third_party/host_memory/host_memory.cpp vendored
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@@ -18,7 +18,16 @@
#include "dynamic_library.hpp"
#elif defined(__linux__) || defined(__FreeBSD__) // ^^^ Windows ^^^ vvv Linux vvv
#elif defined(__linux__) || defined(__FreeBSD__) || defined(TARGET_OS_OSX) // ^^^ Windows ^^^ vvv Linux vvv
#ifndef __linux__
#define memfd_create(name, x) \
({ \
int fd = open(name, O_RDWR | O_CREAT); \
unlink(name); \
fd; \
})
#endif
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
@@ -44,9 +53,11 @@
#endif // ^^^ Linux ^^^
#include <fmt/format.h>
#include <host_memory/free_region_manager.h>
#include <host_memory/host_memory.h>
#include <cstdlib>
#include <cstring>
#include <memory>
#include <mutex>
@@ -368,7 +379,7 @@ namespace Common {
std::unordered_map<size_t, size_t> placeholder_host_pointers; ///< Placeholder backing offset
};
#elif (defined(__linux__) || defined(__FreeBSD__)) && defined(PANDA3DS_HARDWARE_FASTMEM) // ^^^ Windows ^^^ vvv Linux vvv
#elif (defined(__linux__) || defined(__FreeBSD__)) || defined(TARGET_OS_OSX) && defined(PANDA3DS_HARDWARE_FASTMEM) // ^^^ Windows ^^^ vvv Linux vvv
#ifdef __ANDROID__
#define ASHMEM_DEVICE "/dev/ashmem"
@@ -475,11 +486,19 @@ namespace Common {
}
// Backing memory initialization
#if defined(__FreeBSD__) && __FreeBSD__ < 13
#if (defined(__FreeBSD__) && __FreeBSD__ < 13)
// XXX Drop after FreeBSD 12.* reaches EOL on 2024-06-30
fd = shm_open(SHM_ANON, O_RDWR, 0600);
#elif defined(__ANDROID__)
fd = AshmemCreateFileMapping("HostMemory", 0);
#elif defined(TARGET_OS_OSX)
// Shove file in a temp directory since MacOS app bundles and iOS apps run sandboxed
const char* tempPath = getenv("TMPDIR");
// Fallback to /var/tmp if TMPDIR is not defined
if (!tempPath || !*tempPath) tempPath = "/var/tmp";
auto path = fmt::format("{}/HostMemory", tempPath);
fd = memfd_create(path.c_str(), 0);
#else
fd = memfd_create("HostMemory", 0);
#endif
@@ -666,7 +685,8 @@ namespace Common {
#endif // ^^^ Generic ^^^
HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_, bool enableFastmem) : backing_size(backing_size_), virtual_size(virtual_size_) {
HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_, bool enableFastmem)
: backing_size(backing_size_), virtual_size(virtual_size_) {
try {
// Fastmem is disabled, just throw bad alloc and use the VirtualBuffer fallback.
if (!enableFastmem) {