qemu/target/mips/cpu-param.h
Huacai Chen ee3863b9d4 target/mips: Support variable page size
Traditionally, MIPS use 4KB page size, but Loongson prefer 16KB page
size in system emulator. So, let's define TARGET_PAGE_BITS_VARY and
TARGET_PAGE_BITS_MIN to support variable page size.

Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <1586337380-25217-1-git-send-email-chenhc@lemote.com>
2020-06-01 13:28:21 +02:00

35 lines
657 B
C

/*
* MIPS cpu parameters for qemu.
*
* SPDX-License-Identifier: LGPL-2.0+
*/
#ifndef MIPS_CPU_PARAM_H
#define MIPS_CPU_PARAM_H 1
#ifdef TARGET_MIPS64
# define TARGET_LONG_BITS 64
#else
# define TARGET_LONG_BITS 32
#endif
#ifdef TARGET_MIPS64
#define TARGET_PHYS_ADDR_SPACE_BITS 48
#define TARGET_VIRT_ADDR_SPACE_BITS 48
#else
#define TARGET_PHYS_ADDR_SPACE_BITS 40
# ifdef CONFIG_USER_ONLY
# define TARGET_VIRT_ADDR_SPACE_BITS 31
# else
# define TARGET_VIRT_ADDR_SPACE_BITS 32
#endif
#endif
#ifdef CONFIG_USER_ONLY
#define TARGET_PAGE_BITS 12
#else
#define TARGET_PAGE_BITS_VARY
#define TARGET_PAGE_BITS_MIN 12
#endif
#define NB_MMU_MODES 4
#endif