tcg: Split out target/arch/cpu-param.h

For all targets, into this new file move TARGET_LONG_BITS,
TARGET_PAGE_BITS, TARGET_PHYS_ADDR_SPACE_BITS,
TARGET_VIRT_ADDR_SPACE_BITS, and NB_MMU_MODES.

Include this new file from exec/cpu-defs.h.

This now removes the somewhat odd requirement that target/arch/cpu.h
defines TARGET_LONG_BITS before including exec/cpu-defs.h, so push the
bulk of the includes within target/arch/cpu.h to the top.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/target/arm/cpu-param.h b/target/arm/cpu-param.h
new file mode 100644
index 0000000000..6e6948e960
--- /dev/null
+++ b/target/arm/cpu-param.h
@@ -0,0 +1,34 @@
+/*
+ * ARM cpu parameters for qemu.
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ * SPDX-License-Identifier: LGPL-2.0+
+ */
+
+#ifndef ARM_CPU_PARAM_H
+#define ARM_CPU_PARAM_H 1
+
+#ifdef TARGET_AARCH64
+# define TARGET_LONG_BITS             64
+# define TARGET_PHYS_ADDR_SPACE_BITS  48
+# define TARGET_VIRT_ADDR_SPACE_BITS  48
+#else
+# define TARGET_LONG_BITS             32
+# define TARGET_PHYS_ADDR_SPACE_BITS  40
+# define TARGET_VIRT_ADDR_SPACE_BITS  32
+#endif
+
+#ifdef CONFIG_USER_ONLY
+#define TARGET_PAGE_BITS 12
+#else
+/*
+ * ARMv7 and later CPUs have 4K pages minimum, but ARMv5 and v6
+ * have to support 1K tiny pages.
+ */
+# define TARGET_PAGE_BITS_VARY
+# define TARGET_PAGE_BITS_MIN  10
+#endif
+
+#define NB_MMU_MODES 8
+
+#endif