Merge branch 'master' of https://github.com/celestinechen/fio

[fio.git] / arch / arch.h

diff --git a/arch/arch.h b/arch/arch.h
index 745bf3a4d0a6260dffc37b475e3b3479e966ba48..7e294ddfb888c73baceded2ad0bcb0c3d4b1d2ad 100644 (file)
--- a/arch/arch.h
+++ b/arch/arch.h
@@ -1,31 +1,83 @@
 #ifndef ARCH_H
 #define ARCH_H
 
+#ifdef __cplusplus
+#include <atomic>
+#else
+#include <stdatomic.h>
+#endif
+
+#include "../lib/types.h"
+
 enum {
-       arch_x86_64,
-       arch_i386,
+       arch_x86_64 = 1,
+       arch_x86,
        arch_ppc,
        arch_ia64,
        arch_s390,
        arch_alpha,
+       arch_sparc,
+       arch_sparc64,
+       arch_arm,
+       arch_sh,
+       arch_hppa,
+       arch_mips,
+       arch_aarch64,
+       arch_loongarch64,
+       arch_riscv64,
+
+       arch_generic,
+
+       arch_nr,
 };
 
-static inline unsigned long generic_ffz(unsigned long word)
-{
-       unsigned int i;
+enum {
+       ARCH_FLAG_1     = 1 << 0,
+       ARCH_FLAG_2     = 1 << 1,
+       ARCH_FLAG_3     = 1 << 2,
+       ARCH_FLAG_4     = 1 << 3,
+};
 
-       for (i = 0; i < sizeof(word) * 8; i++)
-               if ((word & (1UL << i)) == 0)
-                       return i;
+extern unsigned long arch_flags;
 
-       return -1;
-}
+#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__)
 #include "arch-x86.h"
 #elif defined(__x86_64__)
 #include "arch-x86_64.h"
-#elif defined(__powerpc__) || defined(__powerpc64__)
+#elif defined(__powerpc__) || defined(__powerpc64__) || defined(__ppc__)
 #include "arch-ppc.h"
 #elif defined(__ia64__)
 #include "arch-ia64.h"
@@ -33,10 +85,72 @@ static inline unsigned long generic_ffz(unsigned long word)
 #include "arch-alpha.h"
 #elif defined(__s390x__) || defined(__s390__)
 #include "arch-s390.h"
+#elif defined(__sparc__)
+#include "arch-sparc.h"
+#elif defined(__sparc64__)
+#include "arch-sparc64.h"
+#elif defined(__arm__)
+#include "arch-arm.h"
+#elif defined(__mips__) || defined(__mips64__)
+#include "arch-mips.h"
+#elif defined(__sh__)
+#include "arch-sh.h"
+#elif defined(__hppa__)
+#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
-#error "Unsupported arch"
+#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 */
+
+#ifndef ARCH_HAVE_INIT
+static inline int arch_init(char *envp[])
+{
+       return 0;
+}
+#endif
+
+#ifdef __alpha__
+/*
+ * alpha is the only exception, all other architectures
+ * have common numbers for new system calls.
+ */
+# ifndef __NR_io_uring_setup
+#  define __NR_io_uring_setup          535
+# endif
+# ifndef __NR_io_uring_enter
+#  define __NR_io_uring_enter          536
+# endif
+# ifndef __NR_io_uring_register
+#  define __NR_io_uring_register       537
+# endif
+#else /* !__alpha__ */
+# ifndef __NR_io_uring_setup
+#  define __NR_io_uring_setup          425
+# endif
+# ifndef __NR_io_uring_enter
+#  define __NR_io_uring_enter          426
+# endif
+# ifndef __NR_io_uring_register
+#  define __NR_io_uring_register       427
+# endif
 #endif
 
-#define BITS_PER_LONG  (__WORDSIZE)
+#define ARCH_HAVE_IOURING
 
 #endif