/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _ASMRISCV_CSR_H_
#define _ASMRISCV_CSR_H_
#include <linux/const.h>

#define CSR_SSCRATCH		0x140

#ifndef __ASSEMBLY__

#define csr_swap(csr, val)					\
({								\
	unsigned long __v = (unsigned long)(val);		\
	__asm__ __volatile__ ("csrrw %0, " __ASM_STR(csr) ", %1"\
				: "=r" (__v) : "rK" (__v)	\
				: "memory");			\
	__v;							\
})

#define csr_read(csr)						\
({								\
	register unsigned long __v;				\
	__asm__ __volatile__ ("csrr %0, " __ASM_STR(csr)	\
				: "=r" (__v) :			\
				: "memory");			\
	__v;							\
})

#define csr_write(csr, val)					\
({								\
	unsigned long __v = (unsigned long)(val);		\
	__asm__ __volatile__ ("csrw " __ASM_STR(csr) ", %0"	\
				: : "rK" (__v)			\
				: "memory");			\
})

#define csr_read_set(csr, val)					\
({								\
	unsigned long __v = (unsigned long)(val);		\
	__asm__ __volatile__ ("csrrs %0, " __ASM_STR(csr) ", %1"\
				: "=r" (__v) : "rK" (__v)	\
				: "memory");			\
	__v;							\
})

#define csr_set(csr, val)					\
({								\
	unsigned long __v = (unsigned long)(val);		\
	__asm__ __volatile__ ("csrs " __ASM_STR(csr) ", %0"	\
				: : "rK" (__v)			\
				: "memory");			\
})

#define csr_read_clear(csr, val)				\
({								\
	unsigned long __v = (unsigned long)(val);		\
	__asm__ __volatile__ ("csrrc %0, " __ASM_STR(csr) ", %1"\
				: "=r" (__v) : "rK" (__v)	\
				: "memory");			\
	__v;							\
})

#define csr_clear(csr, val)					\
({								\
	unsigned long __v = (unsigned long)(val);		\
	__asm__ __volatile__ ("csrc " __ASM_STR(csr) ", %0"	\
				: : "rK" (__v)			\
				: "memory");			\
})

#endif /* !__ASSEMBLY__ */
#endif /* _ASMRISCV_CSR_H_ */