target-arm: Split out private-to-target functions into internals.h

Currently cpu.h defines a mixture of functions and types needed by
the rest of QEMU and those needed only by files within target-arm/.
Split the latter out into a new header so they aren't needlessly
exposed further than required.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>

target-arm/cpu.c

@@ -19,6 +19,7 @@
  */
 
 #include "cpu.h"
+#include "internals.h"
 #include "qemu-common.h"
 #include "hw/qdev-properties.h"
 #include "qapi/qmp/qerror.h"

target-arm/cpu.h

@@ -111,11 +111,6 @@ typedef struct ARMGenericTimer {
 #define GTIMER_VIRT 1
 #define NUM_GTIMERS 2
 
-/* Scale factor for generic timers, ie number of ns per tick.
- * This gives a 62.5MHz timer.
- */
-#define GTIMER_SCALE 16
-
 typedef struct CPUARMState {
     /* Regs for current mode.  */
     uint32_t regs[16];
@@ -322,11 +317,7 @@ typedef struct CPUARMState {
 #include "cpu-qom.h"
 
 ARMCPU *cpu_arm_init(const char *cpu_model);
-void arm_translate_init(void);
-void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu);
 int cpu_arm_exec(CPUARMState *s);
-int bank_number(int mode);
-void switch_mode(CPUARMState *, int);
 uint32_t do_arm_semihosting(CPUARMState *env);
 
 static inline bool is_a64(CPUARMState *env)
@@ -548,17 +539,6 @@ static inline void vfp_set_fpcr(CPUARMState *env, uint32_t val)
     vfp_set_fpscr(env, new_fpscr);
 }
 
-enum arm_fprounding {
-    FPROUNDING_TIEEVEN,
-    FPROUNDING_POSINF,
-    FPROUNDING_NEGINF,
-    FPROUNDING_ZERO,
-    FPROUNDING_TIEAWAY,
-    FPROUNDING_ODD
-};
-
-int arm_rmode_to_sf(int rmode);
-
 enum arm_cpu_mode {
   ARM_CPU_MODE_USR = 0x10,
   ARM_CPU_MODE_FIQ = 0x11,

target-arm/helper.c

@@ -1,4 +1,5 @@
 #include "cpu.h"
+#include "internals.h"
 #include "exec/gdbstub.h"
 #include "helper.h"
 #include "qemu/host-utils.h"

target-arm/internals.h

@@ -0,0 +1,49 @@
+/*
+ * QEMU ARM CPU -- internal functions and types
+ *
+ * Copyright (c) 2014 Linaro Ltd
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see
+ * <http://www.gnu.org/licenses/gpl-2.0.html>
+ *
+ * This header defines functions, types, etc which need to be shared
+ * between different source files within target-arm/ but which are
+ * private to it and not required by the rest of QEMU.
+ */
+
+#ifndef TARGET_ARM_INTERNALS_H
+#define TARGET_ARM_INTERNALS_H
+
+/* Scale factor for generic timers, ie number of ns per tick.
+ * This gives a 62.5MHz timer.
+ */
+#define GTIMER_SCALE 16
+
+int bank_number(int mode);
+void switch_mode(CPUARMState *, int);
+void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu);
+void arm_translate_init(void);
+
+enum arm_fprounding {
+    FPROUNDING_TIEEVEN,
+    FPROUNDING_POSINF,
+    FPROUNDING_NEGINF,
+    FPROUNDING_ZERO,
+    FPROUNDING_TIEAWAY,
+    FPROUNDING_ODD
+};
+
+int arm_rmode_to_sf(int rmode);
+
+#endif

target-arm/kvm32.c

@@ -21,6 +21,7 @@
 #include "sysemu/kvm.h"
 #include "kvm_arm.h"
 #include "cpu.h"
+#include "internals.h"
 #include "hw/arm/arm.h"
 
 static inline void set_feature(uint64_t *features, int feature)

target-arm/op_helper.c

@@ -18,6 +18,7 @@
  */
 #include "cpu.h"
 #include "helper.h"
+#include "internals.h"
 
 #define SIGNBIT (uint32_t)0x80000000
 #define SIGNBIT64 ((uint64_t)1 << 63)

target-arm/translate-a64.c

@@ -26,6 +26,7 @@
 #include "tcg-op.h"
 #include "qemu/log.h"
 #include "translate.h"
+#include "internals.h"
 #include "qemu/host-utils.h"
 
 #include "exec/gen-icount.h"

target-arm/translate.c

@@ -25,6 +25,7 @@
 #include <inttypes.h>
 
 #include "cpu.h"
+#include "internals.h"
 #include "disas/disas.h"
 #include "tcg-op.h"
 #include "qemu/log.h"