[J-u-boot.git] / test / overlay / cmd_ut_overlay.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (c) 2016 NextThing Co
 * Copyright (c) 2016 Free Electrons
 */

#include <common.h>
#include <command.h>
#include <errno.h>
#include <malloc.h>

#include <linux/sizes.h>

#include <test/ut.h>
#include <test/overlay.h>
#include <test/suites.h>

/* 4k ought to be enough for anybody */
#define FDT_COPY_SIZE	(4 * SZ_1K)

extern u32 __dtb_test_fdt_base_begin;
extern u32 __dtb_test_fdt_overlay_begin;
extern u32 __dtb_test_fdt_overlay_stacked_begin;

static int ut_fdt_getprop_u32_by_index(void *fdt, const char *path,
				    const char *name, int index,
				    u32 *out)
{
	const fdt32_t *val;
	int node_off;
	int len;

	node_off = fdt_path_offset(fdt, path);
	if (node_off < 0)
		return node_off;

	val = fdt_getprop(fdt, node_off, name, &len);
	if (!val || (len < (sizeof(uint32_t) * (index + 1))))
		return -FDT_ERR_NOTFOUND;

	*out = fdt32_to_cpu(*(val + index));

	return 0;
}

static int ut_fdt_getprop_u32(void *fdt, const char *path, const char *name,
			   u32 *out)
{
	return ut_fdt_getprop_u32_by_index(fdt, path, name, 0, out);
}

static int fdt_getprop_str(void *fdt, const char *path, const char *name,
			   const char **out)
{
	int node_off;
	int len;

	node_off = fdt_path_offset(fdt, path);
	if (node_off < 0)
		return node_off;

	*out = fdt_stringlist_get(fdt, node_off, name, 0, &len);

	return len < 0 ? len : 0;
}

static int fdt_overlay_change_int_property(struct unit_test_state *uts)
{
	void *fdt = uts->priv;
	u32 val = 0;

	ut_assertok(ut_fdt_getprop_u32(fdt, "/test-node", "test-int-property",
				    &val));
	ut_asserteq(43, val);

	return CMD_RET_SUCCESS;
}
OVERLAY_TEST(fdt_overlay_change_int_property, 0);

static int fdt_overlay_change_str_property(struct unit_test_state *uts)
{
	void *fdt = uts->priv;
	const char *val = NULL;

	ut_assertok(fdt_getprop_str(fdt, "/test-node", "test-str-property",
				    &val));
	ut_asserteq_str("foobar", val);

	return CMD_RET_SUCCESS;
}
OVERLAY_TEST(fdt_overlay_change_str_property, 0);

static int fdt_overlay_add_str_property(struct unit_test_state *uts)
{
	void *fdt = uts->priv;
	const char *val = NULL;

	ut_assertok(fdt_getprop_str(fdt, "/test-node", "test-str-property-2",
				    &val));
	ut_asserteq_str("foobar2", val);

	return CMD_RET_SUCCESS;
}
OVERLAY_TEST(fdt_overlay_add_str_property, 0);

static int fdt_overlay_add_node_by_phandle(struct unit_test_state *uts)
{
	void *fdt = uts->priv;
	int off;

	off = fdt_path_offset(fdt, "/test-node/new-node");
	ut_assert(off >= 0);

	ut_assertnonnull(fdt_getprop(fdt, off, "new-property", NULL));

	return CMD_RET_SUCCESS;
}
OVERLAY_TEST(fdt_overlay_add_node_by_phandle, 0);

static int fdt_overlay_add_node_by_path(struct unit_test_state *uts)
{
	void *fdt = uts->priv;
	int off;

	off = fdt_path_offset(fdt, "/new-node");
	ut_assert(off >= 0);

	ut_assertnonnull(fdt_getprop(fdt, off, "new-property", NULL));

	return CMD_RET_SUCCESS;
}
OVERLAY_TEST(fdt_overlay_add_node_by_path, 0);

static int fdt_overlay_add_subnode_property(struct unit_test_state *uts)
{
	void *fdt = uts->priv;
	int off;

	off = fdt_path_offset(fdt, "/test-node/sub-test-node");
	ut_assert(off >= 0);

	ut_assertnonnull(fdt_getprop(fdt, off, "sub-test-property", NULL));
	ut_assertnonnull(fdt_getprop(fdt, off, "new-sub-test-property", NULL));

	return CMD_RET_SUCCESS;
}
OVERLAY_TEST(fdt_overlay_add_subnode_property, 0);

static int fdt_overlay_local_phandle(struct unit_test_state *uts)
{
	uint32_t local_phandle;
	void *fdt = uts->priv;
	u32 val = 0;
	int off;

	off = fdt_path_offset(fdt, "/new-local-node");
	ut_assert(off >= 0);

	local_phandle = fdt_get_phandle(fdt, off);
	ut_assert(local_phandle);

	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-several-phandle",
					     0, &val));
	ut_asserteq(local_phandle, val);

	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-several-phandle",
					     1, &val));
	ut_asserteq(local_phandle, val);

	return CMD_RET_SUCCESS;
}
OVERLAY_TEST(fdt_overlay_local_phandle, 0);

static int fdt_overlay_local_phandles(struct unit_test_state *uts)
{
	uint32_t local_phandle, test_phandle;
	void *fdt = uts->priv;
	u32 val = 0;
	int off;

	off = fdt_path_offset(fdt, "/new-local-node");
	ut_assert(off >= 0);

	local_phandle = fdt_get_phandle(fdt, off);
	ut_assert(local_phandle);

	off = fdt_path_offset(fdt, "/test-node");
	ut_assert(off >= 0);

	test_phandle = fdt_get_phandle(fdt, off);
	ut_assert(test_phandle);

	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-phandle", 0,
					     &val));
	ut_asserteq(test_phandle, val);

	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-phandle", 1,
					     &val));
	ut_asserteq(local_phandle, val);

	return CMD_RET_SUCCESS;
}
OVERLAY_TEST(fdt_overlay_local_phandles, 0);

static int fdt_overlay_stacked(struct unit_test_state *uts)
{
	void *fdt = uts->priv;
	u32 val = 0;

	ut_assertok(ut_fdt_getprop_u32(fdt, "/new-local-node",
				       "stacked-test-int-property", &val));
	ut_asserteq(43, val);

	return CMD_RET_SUCCESS;
}
OVERLAY_TEST(fdt_overlay_stacked, 0);

int do_ut_overlay(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct unit_test *tests = ll_entry_start(struct unit_test,
						 overlay_test);
	const int n_ents = ll_entry_count(struct unit_test, overlay_test);
	struct unit_test_state *uts;
	void *fdt_base = &__dtb_test_fdt_base_begin;
	void *fdt_overlay = &__dtb_test_fdt_overlay_begin;
	void *fdt_overlay_stacked = &__dtb_test_fdt_overlay_stacked_begin;
	void *fdt_base_copy, *fdt_overlay_copy, *fdt_overlay_stacked_copy;
	int ret = -ENOMEM;

	uts = calloc(1, sizeof(*uts));
	if (!uts)
		return -ENOMEM;

	ut_assertok(fdt_check_header(fdt_base));
	ut_assertok(fdt_check_header(fdt_overlay));

	fdt_base_copy = malloc(FDT_COPY_SIZE);
	if (!fdt_base_copy)
		goto err1;
	uts->priv = fdt_base_copy;

	fdt_overlay_copy = malloc(FDT_COPY_SIZE);
	if (!fdt_overlay_copy)
		goto err2;

	fdt_overlay_stacked_copy = malloc(FDT_COPY_SIZE);
	if (!fdt_overlay_stacked_copy)
		goto err3;

	/*
	 * Resize the FDT to 4k so that we have room to operate on
	 *
	 * (and relocate it since the memory might be mapped
	 * read-only)
	 */
	ut_assertok(fdt_open_into(fdt_base, fdt_base_copy, FDT_COPY_SIZE));

	/*
	 * Resize the overlay to 4k so that we have room to operate on
	 *
	 * (and relocate it since the memory might be mapped
	 * read-only)
	 */
	ut_assertok(fdt_open_into(fdt_overlay, fdt_overlay_copy,
				  FDT_COPY_SIZE));

	/*
	 * Resize the stacked overlay to 4k so that we have room to operate on
	 *
	 * (and relocate it since the memory might be mapped
	 * read-only)
	 */
	ut_assertok(fdt_open_into(fdt_overlay_stacked, fdt_overlay_stacked_copy,
				  FDT_COPY_SIZE));

	/* Apply the overlay */
	ut_assertok(fdt_overlay_apply(fdt_base_copy, fdt_overlay_copy));

	/* Apply the stacked overlay */
	ut_assertok(fdt_overlay_apply(fdt_base_copy, fdt_overlay_stacked_copy));

	ret = cmd_ut_category("overlay", tests, n_ents, argc, argv);

	free(fdt_overlay_stacked_copy);
err3:
	free(fdt_overlay_copy);
err2:
	free(fdt_base_copy);
err1:
	free(uts);

	return ret;
}
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
f2a9942f MR	2	/*
	3	* Copyright (c) 2016 NextThing Co
	4	* Copyright (c) 2016 Free Electrons
f2a9942f MR	5	*/
	6
	7	#include <common.h>
	8	#include <command.h>
	9	#include <errno.h>
	10	#include <malloc.h>
	11
	12	#include <linux/sizes.h>
	13
	14	#include <test/ut.h>
	15	#include <test/overlay.h>
e93232e1	16	#include <test/suites.h>
f2a9942f MR	17
	18	/* 4k ought to be enough for anybody */
	19	#define FDT_COPY_SIZE (4 * SZ_1K)
	20
	21	extern u32 __dtb_test_fdt_base_begin;
	22	extern u32 __dtb_test_fdt_overlay_begin;
ea28e488	23	extern u32 __dtb_test_fdt_overlay_stacked_begin;
f2a9942f	24
706708d3	25	static int ut_fdt_getprop_u32_by_index(void fdt, const char path,
f2a9942f MR	26	const char *name, int index,
	27	u32 *out)
	28	{
	29	const fdt32_t *val;
	30	int node_off;
	31	int len;
	32
	33	node_off = fdt_path_offset(fdt, path);
	34	if (node_off < 0)
	35	return node_off;
	36
	37	val = fdt_getprop(fdt, node_off, name, &len);
	38	if (!val \|\| (len < (sizeof(uint32_t) * (index + 1))))
	39	return -FDT_ERR_NOTFOUND;
	40
	41	out = fdt32_to_cpu((val + index));
	42
	43	return 0;
	44	}
	45
706708d3	46	static int ut_fdt_getprop_u32(void fdt, const char path, const char *name,
f2a9942f MR	47	u32 *out)
f2a9942f MR	48	{
706708d3	49	return ut_fdt_getprop_u32_by_index(fdt, path, name, 0, out);
f2a9942f MR	50	}
	51
	52	static int fdt_getprop_str(void fdt, const char path, const char *name,
	53	const char **out)
	54	{
	55	int node_off;
b02e4044	56	int len;
f2a9942f MR	57
	58	node_off = fdt_path_offset(fdt, path);
	59	if (node_off < 0)
	60	return node_off;
	61
b02e4044 SG	62	*out = fdt_stringlist_get(fdt, node_off, name, 0, &len);
	63
	64	return len < 0 ? len : 0;
f2a9942f MR	65	}
	66
	67	static int fdt_overlay_change_int_property(struct unit_test_state *uts)
	68	{
	69	void *fdt = uts->priv;
	70	u32 val = 0;
	71
706708d3	72	ut_assertok(ut_fdt_getprop_u32(fdt, "/test-node", "test-int-property",
f2a9942f MR	73	&val));
	74	ut_asserteq(43, val);
	75
	76	return CMD_RET_SUCCESS;
	77	}
	78	OVERLAY_TEST(fdt_overlay_change_int_property, 0);
	79
	80	static int fdt_overlay_change_str_property(struct unit_test_state *uts)
	81	{
	82	void *fdt = uts->priv;
	83	const char *val = NULL;
	84
	85	ut_assertok(fdt_getprop_str(fdt, "/test-node", "test-str-property",
	86	&val));
	87	ut_asserteq_str("foobar", val);
	88
	89	return CMD_RET_SUCCESS;
	90	}
	91	OVERLAY_TEST(fdt_overlay_change_str_property, 0);
	92
	93	static int fdt_overlay_add_str_property(struct unit_test_state *uts)
	94	{
	95	void *fdt = uts->priv;
	96	const char *val = NULL;
	97
	98	ut_assertok(fdt_getprop_str(fdt, "/test-node", "test-str-property-2",
	99	&val));
	100	ut_asserteq_str("foobar2", val);
	101
	102	return CMD_RET_SUCCESS;
	103	}
	104	OVERLAY_TEST(fdt_overlay_add_str_property, 0);
	105
	106	static int fdt_overlay_add_node_by_phandle(struct unit_test_state *uts)
	107	{
	108	void *fdt = uts->priv;
	109	int off;
	110
	111	off = fdt_path_offset(fdt, "/test-node/new-node");
	112	ut_assert(off >= 0);
	113
	114	ut_assertnonnull(fdt_getprop(fdt, off, "new-property", NULL));
	115
	116	return CMD_RET_SUCCESS;
	117	}
	118	OVERLAY_TEST(fdt_overlay_add_node_by_phandle, 0);
	119
	120	static int fdt_overlay_add_node_by_path(struct unit_test_state *uts)
	121	{
	122	void *fdt = uts->priv;
	123	int off;
	124
	125	off = fdt_path_offset(fdt, "/new-node");
	126	ut_assert(off >= 0);
	127
	128	ut_assertnonnull(fdt_getprop(fdt, off, "new-property", NULL));
	129
	130	return CMD_RET_SUCCESS;
	131	}
	132	OVERLAY_TEST(fdt_overlay_add_node_by_path, 0);
	133
	134	static int fdt_overlay_add_subnode_property(struct unit_test_state *uts)
	135	{
	136	void *fdt = uts->priv;
137	int off;
138
139	off = fdt_path_offset(fdt, "/test-node/sub-test-node");
140	ut_assert(off >= 0);
141
142	ut_assertnonnull(fdt_getprop(fdt, off, "sub-test-property", NULL));
143	ut_assertnonnull(fdt_getprop(fdt, off, "new-sub-test-property", NULL));
144
145	return CMD_RET_SUCCESS;
146	}
147	OVERLAY_TEST(fdt_overlay_add_subnode_property, 0);
148
149	static int fdt_overlay_local_phandle(struct unit_test_state *uts)
150	{
151	uint32_t local_phandle;
152	void *fdt = uts->priv;
153	u32 val = 0;
154	int off;
155
156	off = fdt_path_offset(fdt, "/new-local-node");
157	ut_assert(off >= 0);
158
159	local_phandle = fdt_get_phandle(fdt, off);
160	ut_assert(local_phandle);
161
706708d3	162	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-several-phandle",
f2a9942f MR	163	0, &val));
	164	ut_asserteq(local_phandle, val);
	165
706708d3	166	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-several-phandle",
f2a9942f MR	167	1, &val));
	168	ut_asserteq(local_phandle, val);
	169
	170	return CMD_RET_SUCCESS;
	171	}
	172	OVERLAY_TEST(fdt_overlay_local_phandle, 0);
	173
	174	static int fdt_overlay_local_phandles(struct unit_test_state *uts)
	175	{
	176	uint32_t local_phandle, test_phandle;
	177	void *fdt = uts->priv;
	178	u32 val = 0;
	179	int off;
	180
	181	off = fdt_path_offset(fdt, "/new-local-node");
	182	ut_assert(off >= 0);
	183
	184	local_phandle = fdt_get_phandle(fdt, off);
	185	ut_assert(local_phandle);
	186
	187	off = fdt_path_offset(fdt, "/test-node");
	188	ut_assert(off >= 0);
	189
	190	test_phandle = fdt_get_phandle(fdt, off);
	191	ut_assert(test_phandle);
	192
706708d3	193	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-phandle", 0,
f2a9942f MR	194	&val));
	195	ut_asserteq(test_phandle, val);
	196
706708d3	197	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-phandle", 1,
f2a9942f MR	198	&val));
	199	ut_asserteq(local_phandle, val);
	200
	201	return CMD_RET_SUCCESS;
	202	}
	203	OVERLAY_TEST(fdt_overlay_local_phandles, 0);
	204
ea28e488 PA	205	static int fdt_overlay_stacked(struct unit_test_state *uts)
	206	{
	207	void *fdt = uts->priv;
	208	u32 val = 0;
	209
	210	ut_assertok(ut_fdt_getprop_u32(fdt, "/new-local-node",
	211	"stacked-test-int-property", &val));
	212	ut_asserteq(43, val);
	213
	214	return CMD_RET_SUCCESS;
	215	}
	216	OVERLAY_TEST(fdt_overlay_stacked, 0);
	217
f2a9942f MR	218	int do_ut_overlay(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	219	{
	220	struct unit_test *tests = ll_entry_start(struct unit_test,
	221	overlay_test);
	222	const int n_ents = ll_entry_count(struct unit_test, overlay_test);
	223	struct unit_test_state *uts;
f2a9942f MR	224	void *fdt_base = &__dtb_test_fdt_base_begin;
f2a9942f MR	225	void *fdt_overlay = &__dtb_test_fdt_overlay_begin;
ea28e488 PA	226	void *fdt_overlay_stacked = &__dtb_test_fdt_overlay_stacked_begin;
ea28e488 PA	227	void fdt_base_copy, fdt_overlay_copy, *fdt_overlay_stacked_copy;
d91062c4	228	int ret = -ENOMEM;
f2a9942f MR	229
	230	uts = calloc(1, sizeof(*uts));
	231	if (!uts)
	232	return -ENOMEM;
	233
	234	ut_assertok(fdt_check_header(fdt_base));
	235	ut_assertok(fdt_check_header(fdt_overlay));
	236
	237	fdt_base_copy = malloc(FDT_COPY_SIZE);
	238	if (!fdt_base_copy)
d91062c4	239	goto err1;
f2a9942f MR	240	uts->priv = fdt_base_copy;
	241
	242	fdt_overlay_copy = malloc(FDT_COPY_SIZE);
	243	if (!fdt_overlay_copy)
d91062c4	244	goto err2;
f2a9942f	245
ea28e488 PA	246	fdt_overlay_stacked_copy = malloc(FDT_COPY_SIZE);
ea28e488 PA	247	if (!fdt_overlay_stacked_copy)
d91062c4	248	goto err3;
ea28e488	249
f2a9942f MR	250	/*
	251	* Resize the FDT to 4k so that we have room to operate on
	252	*
	253	* (and relocate it since the memory might be mapped
	254	* read-only)
	255	*/
	256	ut_assertok(fdt_open_into(fdt_base, fdt_base_copy, FDT_COPY_SIZE));
	257
	258	/*
	259	* Resize the overlay to 4k so that we have room to operate on
	260	*
	261	* (and relocate it since the memory might be mapped
	262	* read-only)
	263	*/
	264	ut_assertok(fdt_open_into(fdt_overlay, fdt_overlay_copy,
	265	FDT_COPY_SIZE));
	266
ea28e488 PA	267	/*
	268	* Resize the stacked overlay to 4k so that we have room to operate on
	269	*
	270	* (and relocate it since the memory might be mapped
	271	* read-only)
	272	*/
	273	ut_assertok(fdt_open_into(fdt_overlay_stacked, fdt_overlay_stacked_copy,
	274	FDT_COPY_SIZE));
	275
f2a9942f MR	276	/* Apply the overlay */
	277	ut_assertok(fdt_overlay_apply(fdt_base_copy, fdt_overlay_copy));
	278
ea28e488 PA	279	/* Apply the stacked overlay */
	280	ut_assertok(fdt_overlay_apply(fdt_base_copy, fdt_overlay_stacked_copy));
	281
e93232e1	282	ret = cmd_ut_category("overlay", tests, n_ents, argc, argv);
f2a9942f	283
ea28e488	284	free(fdt_overlay_stacked_copy);
d91062c4	285	err3:
f2a9942f	286	free(fdt_overlay_copy);
d91062c4	287	err2:
f2a9942f	288	free(fdt_base_copy);
d91062c4	289	err1:
f2a9942f MR	290	free(uts);
f2a9942f MR	291
d91062c4	292	return ret;
f2a9942f	293	}