tcg: Split out tcg/oversized-guest.h

Move a use of TARGET_LONG_BITS out of tcg/tcg.h.
Include the new file only where required.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg/cputlb.c

@@ -40,6 +40,7 @@
 #include "qemu/plugin-memory.h"
 #endif
 #include "tcg/tcg-ldst.h"
+#include "tcg/oversized-guest.h"
 #include "exec/helper-proto.h"
 
 /* DEBUG defines, enable DEBUG_TLB_LOG to log to the CPU_LOG_MMU target */

accel/tcg/tcg-all.c

@@ -28,6 +28,7 @@
 #include "exec/replay-core.h"
 #include "sysemu/cpu-timers.h"
 #include "tcg/tcg.h"
+#include "tcg/oversized-guest.h"
 #include "qapi/error.h"
 #include "qemu/error-report.h"
 #include "qemu/accel.h"

include/exec/cpu_ldst.h

@@ -326,8 +326,7 @@ static inline void clear_helper_retaddr(void)
 
 #else
 
-/* Needed for TCG_OVERSIZED_GUEST */
-#include "tcg/tcg.h"
+#include "tcg/oversized-guest.h"
 
 static inline target_ulong tlb_read_idx(const CPUTLBEntry *entry,
                                         MMUAccessType access_type)

include/tcg/oversized-guest.h

@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Define TCG_OVERSIZED_GUEST
+ * Copyright (c) 2008 Fabrice Bellard
+ */
+
+#ifndef EXEC_TCG_OVERSIZED_GUEST_H
+#define EXEC_TCG_OVERSIZED_GUEST_H
+
+#include "tcg-target-reg-bits.h"
+#include "cpu-param.h"
+
+/*
+ * Oversized TCG guests make things like MTTCG hard
+ * as we can't use atomics for cputlb updates.
+ */
+#if TARGET_LONG_BITS > TCG_TARGET_REG_BITS
+#define TCG_OVERSIZED_GUEST 1
+#else
+#define TCG_OVERSIZED_GUEST 0
+#endif
+
+#endif

include/tcg/tcg.h

@@ -59,15 +59,6 @@ typedef uint64_t tcg_target_ulong;
 #error unsupported
 #endif
 
-/* Oversized TCG guests make things like MTTCG hard
- * as we can't use atomics for cputlb updates.
- */
-#if TARGET_LONG_BITS > TCG_TARGET_REG_BITS
-#define TCG_OVERSIZED_GUEST 1
-#else
-#define TCG_OVERSIZED_GUEST 0
-#endif
-
 #if TCG_TARGET_NB_REGS <= 32
 typedef uint32_t TCGRegSet;
 #elif TCG_TARGET_NB_REGS <= 64

target/arm/ptw.c

@@ -14,6 +14,7 @@
 #include "cpu.h"
 #include "internals.h"
 #include "idau.h"
+#include "tcg/oversized-guest.h"
 
 
 typedef struct S1Translate {

target/riscv/cpu_helper.c

@@ -31,6 +31,7 @@
 #include "sysemu/cpu-timers.h"
 #include "cpu_bits.h"
 #include "debug.h"
+#include "tcg/oversized-guest.h"
 
 int riscv_cpu_mmu_index(CPURISCVState *env, bool ifetch)
 {