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

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

#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
f2a9942f MR	1	/*
	2	* Copyright (c) 2016 NextThing Co
	3	* Copyright (c) 2016 Free Electrons
	4	*
	5	* SPDX-License-Identifier: GPL-2.0+
	6	*/
	7
	8	#include <common.h>
	9	#include <command.h>
	10	#include <errno.h>
	11	#include <malloc.h>
	12
	13	#include <linux/sizes.h>
	14
	15	#include <test/ut.h>
	16	#include <test/overlay.h>
e93232e1	17	#include <test/suites.h>
f2a9942f MR	18
	19	/* 4k ought to be enough for anybody */
	20	#define FDT_COPY_SIZE (4 * SZ_1K)
	21
	22	extern u32 __dtb_test_fdt_base_begin;
	23	extern u32 __dtb_test_fdt_overlay_begin;
ea28e488	24	extern u32 __dtb_test_fdt_overlay_stacked_begin;
f2a9942f	25
706708d3	26	static int ut_fdt_getprop_u32_by_index(void fdt, const char path,
f2a9942f MR	27	const char *name, int index,
	28	u32 *out)
	29	{
	30	const fdt32_t *val;
	31	int node_off;
	32	int len;
	33
	34	node_off = fdt_path_offset(fdt, path);
	35	if (node_off < 0)
	36	return node_off;
	37
	38	val = fdt_getprop(fdt, node_off, name, &len);
	39	if (!val \|\| (len < (sizeof(uint32_t) * (index + 1))))
	40	return -FDT_ERR_NOTFOUND;
	41
	42	out = fdt32_to_cpu((val + index));
	43
	44	return 0;
	45	}
	46
706708d3	47	static int ut_fdt_getprop_u32(void fdt, const char path, const char *name,
f2a9942f MR	48	u32 *out)
f2a9942f MR	49	{
706708d3	50	return ut_fdt_getprop_u32_by_index(fdt, path, name, 0, out);
f2a9942f MR	51	}
	52
	53	static int fdt_getprop_str(void fdt, const char path, const char *name,
	54	const char **out)
	55	{
	56	int node_off;
b02e4044	57	int len;
f2a9942f MR	58
	59	node_off = fdt_path_offset(fdt, path);
	60	if (node_off < 0)
	61	return node_off;
	62
b02e4044 SG	63	*out = fdt_stringlist_get(fdt, node_off, name, 0, &len);
	64
	65	return len < 0 ? len : 0;
f2a9942f MR	66	}
	67
	68	static int fdt_overlay_change_int_property(struct unit_test_state *uts)
	69	{
	70	void *fdt = uts->priv;
	71	u32 val = 0;
	72
706708d3	73	ut_assertok(ut_fdt_getprop_u32(fdt, "/test-node", "test-int-property",
f2a9942f MR	74	&val));
	75	ut_asserteq(43, val);
	76
	77	return CMD_RET_SUCCESS;
	78	}
	79	OVERLAY_TEST(fdt_overlay_change_int_property, 0);
	80
	81	static int fdt_overlay_change_str_property(struct unit_test_state *uts)
	82	{
	83	void *fdt = uts->priv;
	84	const char *val = NULL;
	85
	86	ut_assertok(fdt_getprop_str(fdt, "/test-node", "test-str-property",
	87	&val));
	88	ut_asserteq_str("foobar", val);
	89
	90	return CMD_RET_SUCCESS;
	91	}
	92	OVERLAY_TEST(fdt_overlay_change_str_property, 0);
	93
	94	static int fdt_overlay_add_str_property(struct unit_test_state *uts)
	95	{
	96	void *fdt = uts->priv;
	97	const char *val = NULL;
	98
	99	ut_assertok(fdt_getprop_str(fdt, "/test-node", "test-str-property-2",
	100	&val));
	101	ut_asserteq_str("foobar2", val);
	102
	103	return CMD_RET_SUCCESS;
	104	}
	105	OVERLAY_TEST(fdt_overlay_add_str_property, 0);
	106
	107	static int fdt_overlay_add_node_by_phandle(struct unit_test_state *uts)
	108	{
	109	void *fdt = uts->priv;
	110	int off;
	111
	112	off = fdt_path_offset(fdt, "/test-node/new-node");
	113	ut_assert(off >= 0);
	114
	115	ut_assertnonnull(fdt_getprop(fdt, off, "new-property", NULL));
	116
	117	return CMD_RET_SUCCESS;
	118	}
	119	OVERLAY_TEST(fdt_overlay_add_node_by_phandle, 0);
	120
	121	static int fdt_overlay_add_node_by_path(struct unit_test_state *uts)
	122	{
	123	void *fdt = uts->priv;
	124	int off;
	125
	126	off = fdt_path_offset(fdt, "/new-node");
	127	ut_assert(off >= 0);
	128
	129	ut_assertnonnull(fdt_getprop(fdt, off, "new-property", NULL));
	130
	131	return CMD_RET_SUCCESS;
	132	}
	133	OVERLAY_TEST(fdt_overlay_add_node_by_path, 0);
	134
	135	static int fdt_overlay_add_subnode_property(struct unit_test_state *uts)
	136	{
	137	void *fdt = uts->priv;
138	int off;
139
140	off = fdt_path_offset(fdt, "/test-node/sub-test-node");
141	ut_assert(off >= 0);
142
143	ut_assertnonnull(fdt_getprop(fdt, off, "sub-test-property", NULL));
144	ut_assertnonnull(fdt_getprop(fdt, off, "new-sub-test-property", NULL));
145
146	return CMD_RET_SUCCESS;
147	}
148	OVERLAY_TEST(fdt_overlay_add_subnode_property, 0);
149
150	static int fdt_overlay_local_phandle(struct unit_test_state *uts)
151	{
152	uint32_t local_phandle;
153	void *fdt = uts->priv;
154	u32 val = 0;
155	int off;
156
157	off = fdt_path_offset(fdt, "/new-local-node");
158	ut_assert(off >= 0);
159
160	local_phandle = fdt_get_phandle(fdt, off);
161	ut_assert(local_phandle);
162
706708d3	163	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-several-phandle",
f2a9942f MR	164	0, &val));
	165	ut_asserteq(local_phandle, val);
	166
706708d3	167	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-several-phandle",
f2a9942f MR	168	1, &val));
	169	ut_asserteq(local_phandle, val);
	170
	171	return CMD_RET_SUCCESS;
	172	}
	173	OVERLAY_TEST(fdt_overlay_local_phandle, 0);
	174
	175	static int fdt_overlay_local_phandles(struct unit_test_state *uts)
	176	{
	177	uint32_t local_phandle, test_phandle;
	178	void *fdt = uts->priv;
	179	u32 val = 0;
	180	int off;
	181
	182	off = fdt_path_offset(fdt, "/new-local-node");
	183	ut_assert(off >= 0);
	184
	185	local_phandle = fdt_get_phandle(fdt, off);
	186	ut_assert(local_phandle);
	187
	188	off = fdt_path_offset(fdt, "/test-node");
	189	ut_assert(off >= 0);
	190
	191	test_phandle = fdt_get_phandle(fdt, off);
	192	ut_assert(test_phandle);
	193
706708d3	194	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-phandle", 0,
f2a9942f MR	195	&val));
	196	ut_asserteq(test_phandle, val);
	197
706708d3	198	ut_assertok(ut_fdt_getprop_u32_by_index(fdt, "/", "test-phandle", 1,
f2a9942f MR	199	&val));
	200	ut_asserteq(local_phandle, val);
	201
	202	return CMD_RET_SUCCESS;
	203	}
	204	OVERLAY_TEST(fdt_overlay_local_phandles, 0);
	205
ea28e488 PA	206	static int fdt_overlay_stacked(struct unit_test_state *uts)
	207	{
	208	void *fdt = uts->priv;
	209	u32 val = 0;
	210
	211	ut_assertok(ut_fdt_getprop_u32(fdt, "/new-local-node",
	212	"stacked-test-int-property", &val));
	213	ut_asserteq(43, val);
	214
	215	return CMD_RET_SUCCESS;
	216	}
	217	OVERLAY_TEST(fdt_overlay_stacked, 0);
	218
f2a9942f MR	219	int do_ut_overlay(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	220	{
	221	struct unit_test *tests = ll_entry_start(struct unit_test,
	222	overlay_test);
	223	const int n_ents = ll_entry_count(struct unit_test, overlay_test);
	224	struct unit_test_state *uts;
f2a9942f MR	225	void *fdt_base = &__dtb_test_fdt_base_begin;
f2a9942f MR	226	void *fdt_overlay = &__dtb_test_fdt_overlay_begin;
ea28e488 PA	227	void *fdt_overlay_stacked = &__dtb_test_fdt_overlay_stacked_begin;
ea28e488 PA	228	void fdt_base_copy, fdt_overlay_copy, *fdt_overlay_stacked_copy;
d91062c4	229	int ret = -ENOMEM;
f2a9942f MR	230
	231	uts = calloc(1, sizeof(*uts));
	232	if (!uts)
	233	return -ENOMEM;
	234
	235	ut_assertok(fdt_check_header(fdt_base));
	236	ut_assertok(fdt_check_header(fdt_overlay));
	237
	238	fdt_base_copy = malloc(FDT_COPY_SIZE);
	239	if (!fdt_base_copy)
d91062c4	240	goto err1;
f2a9942f MR	241	uts->priv = fdt_base_copy;
	242
	243	fdt_overlay_copy = malloc(FDT_COPY_SIZE);
	244	if (!fdt_overlay_copy)
d91062c4	245	goto err2;
f2a9942f	246
ea28e488 PA	247	fdt_overlay_stacked_copy = malloc(FDT_COPY_SIZE);
ea28e488 PA	248	if (!fdt_overlay_stacked_copy)
d91062c4	249	goto err3;
ea28e488	250
f2a9942f MR	251	/*
	252	* Resize the FDT to 4k so that we have room to operate on
	253	*
	254	* (and relocate it since the memory might be mapped
	255	* read-only)
	256	*/
	257	ut_assertok(fdt_open_into(fdt_base, fdt_base_copy, FDT_COPY_SIZE));
	258
	259	/*
	260	* Resize the overlay to 4k so that we have room to operate on
	261	*
	262	* (and relocate it since the memory might be mapped
	263	* read-only)
	264	*/
	265	ut_assertok(fdt_open_into(fdt_overlay, fdt_overlay_copy,
	266	FDT_COPY_SIZE));
	267
ea28e488 PA	268	/*
	269	* Resize the stacked overlay to 4k so that we have room to operate on
	270	*
	271	* (and relocate it since the memory might be mapped
	272	* read-only)
	273	*/
	274	ut_assertok(fdt_open_into(fdt_overlay_stacked, fdt_overlay_stacked_copy,
	275	FDT_COPY_SIZE));
	276
f2a9942f MR	277	/* Apply the overlay */
	278	ut_assertok(fdt_overlay_apply(fdt_base_copy, fdt_overlay_copy));
	279
ea28e488 PA	280	/* Apply the stacked overlay */
	281	ut_assertok(fdt_overlay_apply(fdt_base_copy, fdt_overlay_stacked_copy));
	282
e93232e1	283	ret = cmd_ut_category("overlay", tests, n_ents, argc, argv);
f2a9942f	284
ea28e488	285	free(fdt_overlay_stacked_copy);
d91062c4	286	err3:
f2a9942f	287	free(fdt_overlay_copy);
d91062c4	288	err2:
f2a9942f	289	free(fdt_base_copy);
d91062c4	290	err1:
f2a9942f MR	291	free(uts);
f2a9942f MR	292
d91062c4	293	return ret;
f2a9942f	294	}