docs: update for new data placement options

[fio.git] / arch / arch.h

diff --git a/arch/arch.h b/arch/arch.h
index 08c3d7033d3037f854649b861cc81415469d7096..7e294ddfb888c73baceded2ad0bcb0c3d4b1d2ad 100644 (file)
--- a/arch/arch.h
+++ b/arch/arch.h
@@ -1,7 +1,11 @@
 #ifndef ARCH_H
 #define ARCH_H
 
+#ifdef __cplusplus
+#include <atomic>
+#else
 #include <stdatomic.h>
+#endif
 
 #include "../lib/types.h"
 
@@ -19,6 +23,8 @@ enum {
        arch_hppa,
        arch_mips,
        arch_aarch64,
+       arch_loongarch64,
+       arch_riscv64,
 
        arch_generic,
 
@@ -36,12 +42,35 @@ extern unsigned long arch_flags;
 
 #define ARCH_CPU_CLOCK_WRAPS
 
+#ifdef __cplusplus
+#define atomic_add(p, v)                                               \
+       std::atomic_fetch_add(p, (v))
+#define atomic_sub(p, v)                                               \
+       std::atomic_fetch_sub(p, (v))
+#define atomic_load_relaxed(p)                                 \
+       std::atomic_load_explicit(p,                            \
+                            std::memory_order_relaxed)
+#define atomic_load_acquire(p)                                 \
+       std::atomic_load_explicit(p,                            \
+                            std::memory_order_acquire)
+#define atomic_store_release(p, v)                             \
+       std::atomic_store_explicit(p, (v),                      \
+                            std::memory_order_release)
+#else
+#define atomic_add(p, v)                                       \
+       atomic_fetch_add((_Atomic typeof(*(p)) *)(p), v)
+#define atomic_sub(p, v)                                       \
+       atomic_fetch_sub((_Atomic typeof(*(p)) *)(p), v)
+#define atomic_load_relaxed(p)                                 \
+       atomic_load_explicit((_Atomic typeof(*(p)) *)(p),       \
+                            memory_order_relaxed)
 #define atomic_load_acquire(p)                                 \
        atomic_load_explicit((_Atomic typeof(*(p)) *)(p),       \
                             memory_order_acquire)
 #define atomic_store_release(p, v)                             \
        atomic_store_explicit((_Atomic typeof(*(p)) *)(p), (v), \
                              memory_order_release)
+#endif
 
 /* IWYU pragma: begin_exports */
 #if defined(__i386__)
@@ -70,11 +99,22 @@ extern unsigned long arch_flags;
 #include "arch-hppa.h"
 #elif defined(__aarch64__)
 #include "arch-aarch64.h"
+#elif defined(__loongarch64)
+#include "arch-loongarch64.h"
+#elif defined(__riscv) && __riscv_xlen == 64
+#include "arch-riscv64.h"
 #else
 #warning "Unknown architecture, attempting to use generic model."
 #include "arch-generic.h"
 #endif
 
+#if !defined(__x86_64__) && defined(CONFIG_SYNC_SYNC)
+static inline void tsc_barrier(void)
+{
+       __sync_synchronize();
+}
+#endif
+
 #include "../lib/ffz.h"
 /* IWYU pragma: end_exports */