[settings] Disable fastmem on Linux systems with non-4kb page sizes (#3669)

Asahi, etc

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3669
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
This commit is contained in:
crueter 2026-03-10 05:36:12 +01:00
parent a1b50e9339
commit 07e3a2aa46
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@ -27,6 +27,10 @@
#include "common/settings.h"
#include "common/time_zone.h"
#if defined(__linux__ ) && defined(ARCHITECTURE_arm64)
#include <unistd.h>
#endif
namespace Settings {
// Clang 14 and earlier have errors when explicitly instantiating these classes
@ -178,7 +182,11 @@ bool IsFastmemEnabled() {
return bool(values.cpuopt_fastmem);
else if (values.cpu_accuracy.GetValue() == CpuAccuracy::Unsafe)
return bool(values.cpuopt_unsafe_host_mmu);
#if !defined(__APPLE__) && !defined(__linux__) && !defined(__ANDROID__) && !defined(_WIN32)
#if defined(__linux__) && defined(ARCHITECTURE_arm64)
// Only 4kb systems support host MMU right now
// TODO: Support this
return getpagesize() == 4096;
#elif !defined(__APPLE__) && !defined(__ANDROID__) && !defined(_WIN32) && !defined(__linux__)
return false;
#else
return true;