[mirror_ubuntu-bionic-kernel.git] / tools / testing / selftests / powerpc / include / instructions.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H
#define _SELFTESTS_POWERPC_INSTRUCTIONS_H

#include <stdio.h>
#include <stdlib.h>

/* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */
#define __COPY(RA, RB, L) \
	(0x7c00060c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10))
#define COPY(RA, RB, L) \
	.long __COPY((RA), (RB), (L))

static inline void copy(void *i)
{
	asm volatile(str(COPY(0, %0, 0))";"
			:
			: "b" (i)
			: "memory"
		    );
}

static inline void copy_first(void *i)
{
	asm volatile(str(COPY(0, %0, 1))";"
			:
			: "b" (i)
			: "memory"
		    );
}

/* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */
#define __PASTE(RA, RB, L, RC) \
	(0x7c00070c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10) | (RC) << (31-31))
#define PASTE(RA, RB, L, RC) \
	.long __PASTE((RA), (RB), (L), (RC))

static inline int paste(void *i)
{
	int cr;

	asm volatile(str(PASTE(0, %1, 0, 0))";"
			"mfcr %0;"
			: "=r" (cr)
			: "b" (i)
			: "memory"
		    );
	return cr;
}

static inline int paste_last(void *i)
{
	int cr;

	asm volatile(str(PASTE(0, %1, 1, 1))";"
			"mfcr %0;"
			: "=r" (cr)
			: "b" (i)
			: "memory"
		    );
	return cr;
}

#define PPC_INST_COPY                  __COPY(0, 0, 0)
#define PPC_INST_COPY_FIRST            __COPY(0, 0, 1)
#define PPC_INST_PASTE                 __PASTE(0, 0, 0, 0)
#define PPC_INST_PASTE_LAST            __PASTE(0, 0, 1, 1)

#endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
43750880 CS	2	#ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H
	3	#define _SELFTESTS_POWERPC_INSTRUCTIONS_H
	4
	5	#include <stdio.h>
	6	#include <stdlib.h>
	7
	8	/* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */
	9	#define __COPY(RA, RB, L) \
	10	(0x7c00060c \| (RA) << (31-15) \| (RB) << (31-20) \| (L) << (31-10))
	11	#define COPY(RA, RB, L) \
	12	.long __COPY((RA), (RB), (L))
	13
	14	static inline void copy(void *i)
	15	{
	16	asm volatile(str(COPY(0, %0, 0))";"
	17	:
	18	: "b" (i)
	19	: "memory"
	20	);
	21	}
	22
	23	static inline void copy_first(void *i)
	24	{
	25	asm volatile(str(COPY(0, %0, 1))";"
	26	:
	27	: "b" (i)
	28	: "memory"
	29	);
	30	}
	31
	32	/* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */
	33	#define __PASTE(RA, RB, L, RC) \
	34	(0x7c00070c \| (RA) << (31-15) \| (RB) << (31-20) \| (L) << (31-10) \| (RC) << (31-31))
	35	#define PASTE(RA, RB, L, RC) \
	36	.long __PASTE((RA), (RB), (L), (RC))
	37
	38	static inline int paste(void *i)
	39	{
	40	int cr;
	41
	42	asm volatile(str(PASTE(0, %1, 0, 0))";"
	43	"mfcr %0;"
	44	: "=r" (cr)
	45	: "b" (i)
	46	: "memory"
	47	);
	48	return cr;
	49	}
	50
	51	static inline int paste_last(void *i)
	52	{
	53	int cr;
	54
	55	asm volatile(str(PASTE(0, %1, 1, 1))";"
	56	"mfcr %0;"
	57	: "=r" (cr)
	58	: "b" (i)
	59	: "memory"
	60	);
	61	return cr;
	62	}
	63
	64	#define PPC_INST_COPY __COPY(0, 0, 0)
	65	#define PPC_INST_COPY_FIRST __COPY(0, 0, 1)
66	#define PPC_INST_PASTE __PASTE(0, 0, 0, 0)
67	#define PPC_INST_PASTE_LAST __PASTE(0, 0, 1, 1)
68
69	#endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */