X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=arch%2Farch.h;h=30c0d2056d3eaa7abcffd5cd703f698d99790edd;hp=64593748302c2fbddd15e2243780a40679ee0ba0;hb=HEAD;hpb=11f97f307bbba7c320b0dab0a55ef6795b72e3d6

diff --git a/arch/arch.h b/arch/arch.h
index 64593748..7e294ddf 100644
--- a/arch/arch.h
+++ b/arch/arch.h
@@ -1,15 +1,17 @@
 #ifndef ARCH_H
 #define ARCH_H
 
-#ifdef __WORDSIZE
-#define BITS_PER_LONG	__WORDSIZE
+#ifdef __cplusplus
+#include <atomic>
 #else
-#define BITS_PER_LONG	32
+#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,
@@ -17,13 +19,65 @@ enum {
 	arch_sparc,
 	arch_sparc64,
 	arch_arm,
+	arch_sh,
+	arch_hppa,
+	arch_mips,
+	arch_aarch64,
+	arch_loongarch64,
+	arch_riscv64,
+
+	arch_generic,
+
+	arch_nr,
 };
 
+enum {
+	ARCH_FLAG_1	= 1 << 0,
+	ARCH_FLAG_2	= 1 << 1,
+	ARCH_FLAG_3	= 1 << 2,
+	ARCH_FLAG_4	= 1 << 3,
+};
+
+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__)
 #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"
@@ -39,14 +93,64 @@ enum {
 #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
 
-#ifdef ARCH_HAVE_FFZ
-#define ffz(bitmask)	arch_ffz(bitmask)
-#else
 #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 ARCH_HAVE_IOURING
+
 #endif