[thirdparty/u-boot.git] / post / lib_powerpc / multi.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2002
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 */

#include <config.h>
#include <irq_func.h>
#include <log.h>

/*
 * CPU test
 * Load/store multiple word instructions:	lmw, stmw
 *
 * 27 consecutive words are loaded from a source memory buffer
 * into GPRs r5 through r31. After that, 27 consecutive words are stored
 * from the GPRs r5 through r31 into a target memory buffer. The contents
 * of the source and target buffers are then compared.
 */

#include <post.h>
#include "cpu_asm.h"

#if CFG_POST & CFG_SYS_POST_CPU

extern void cpu_post_exec_02(ulong *code, ulong op1, ulong op2);

int cpu_post_test_multi(void)
{
	int ret = 0;
	unsigned int i;
	ulong src[27], dst[27];
	int flag = disable_interrupts();

	ulong code[] = {
		ASM_LMW(5, 3, 0),	/* lmw	r5, 0(r3)	*/
		ASM_STMW(5, 4, 0),	/* stmr	r5, 0(r4)	*/
		ASM_BLR,		/* blr			*/
	};

	for (i = 0; i < ARRAY_SIZE(src); ++i) {
		src[i] = i;
		dst[i] = 0;
	}

	cpu_post_exec_02(code, (ulong) src, (ulong) dst);

	ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1;

	if (ret != 0)
		post_log("Error at multi test !\n");

	if (flag)
		enable_interrupts();

	return ret;
}

#endif
Commit	Line	Data
	1	// SPDX-License-Identifier: GPL-2.0+
	2	/*
	3	* (C) Copyright 2002
	4	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	5	*/
	6
	7	#include <config.h>
	8	#include <irq_func.h>
	9	#include <log.h>
	10
	11	/*
	12	* CPU test
	13	* Load/store multiple word instructions: lmw, stmw
	14	*
	15	* 27 consecutive words are loaded from a source memory buffer
	16	* into GPRs r5 through r31. After that, 27 consecutive words are stored
	17	* from the GPRs r5 through r31 into a target memory buffer. The contents
	18	* of the source and target buffers are then compared.
	19	*/
	20
	21	#include <post.h>
	22	#include "cpu_asm.h"
	23
	24	#if CFG_POST & CFG_SYS_POST_CPU
	25
	26	extern void cpu_post_exec_02(ulong *code, ulong op1, ulong op2);
	27
	28	int cpu_post_test_multi(void)
	29	{
	30	int ret = 0;
	31	unsigned int i;
	32	ulong src[27], dst[27];
	33	int flag = disable_interrupts();
	34
	35	ulong code[] = {
	36	ASM_LMW(5, 3, 0), /* lmw r5, 0(r3) */
	37	ASM_STMW(5, 4, 0), /* stmr r5, 0(r4) */
	38	ASM_BLR, /* blr */
	39	};
	40
	41	for (i = 0; i < ARRAY_SIZE(src); ++i) {
	42	src[i] = i;
	43	dst[i] = 0;
	44	}
	45
	46	cpu_post_exec_02(code, (ulong) src, (ulong) dst);
	47
	48	ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1;
	49
	50	if (ret != 0)
	51	post_log("Error at multi test !\n");
	52
	53	if (flag)
	54	enable_interrupts();
	55
	56	return ret;
	57	}
	58
	59	#endif