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![Maxime Ripard](/assets/img/avatar_default.png)
This adds a bunch of unit tests for the "fdt apply" command. They've all been run successfully in the sandbox. However, as you still require an out-of-tree dtc with overlay support, this is disabled by default. Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
269 lines
6.2 KiB
C
269 lines
6.2 KiB
C
/*
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* Copyright (c) 2016 NextThing Co
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* Copyright (c) 2016 Free Electrons
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <command.h>
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#include <errno.h>
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#include <malloc.h>
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#include <linux/sizes.h>
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#include <test/ut.h>
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#include <test/overlay.h>
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/* 4k ought to be enough for anybody */
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#define FDT_COPY_SIZE (4 * SZ_1K)
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extern u32 __dtb_test_fdt_base_begin;
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extern u32 __dtb_test_fdt_overlay_begin;
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static int fdt_getprop_u32_by_index(void *fdt, const char *path,
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const char *name, int index,
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u32 *out)
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{
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const fdt32_t *val;
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int node_off;
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int len;
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node_off = fdt_path_offset(fdt, path);
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if (node_off < 0)
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return node_off;
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val = fdt_getprop(fdt, node_off, name, &len);
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if (!val || (len < (sizeof(uint32_t) * (index + 1))))
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return -FDT_ERR_NOTFOUND;
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*out = fdt32_to_cpu(*(val + index));
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return 0;
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}
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static int fdt_getprop_u32(void *fdt, const char *path, const char *name,
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u32 *out)
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{
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return fdt_getprop_u32_by_index(fdt, path, name, 0, out);
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}
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static int fdt_getprop_str(void *fdt, const char *path, const char *name,
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const char **out)
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{
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int node_off;
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node_off = fdt_path_offset(fdt, path);
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if (node_off < 0)
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return node_off;
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return fdt_get_string(fdt, node_off, name, out);
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}
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static int fdt_overlay_change_int_property(struct unit_test_state *uts)
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{
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void *fdt = uts->priv;
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u32 val = 0;
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ut_assertok(fdt_getprop_u32(fdt, "/test-node", "test-int-property",
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&val));
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ut_asserteq(43, val);
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return CMD_RET_SUCCESS;
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}
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OVERLAY_TEST(fdt_overlay_change_int_property, 0);
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static int fdt_overlay_change_str_property(struct unit_test_state *uts)
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{
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void *fdt = uts->priv;
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const char *val = NULL;
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ut_assertok(fdt_getprop_str(fdt, "/test-node", "test-str-property",
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&val));
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ut_asserteq_str("foobar", val);
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return CMD_RET_SUCCESS;
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}
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OVERLAY_TEST(fdt_overlay_change_str_property, 0);
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static int fdt_overlay_add_str_property(struct unit_test_state *uts)
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{
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void *fdt = uts->priv;
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const char *val = NULL;
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ut_assertok(fdt_getprop_str(fdt, "/test-node", "test-str-property-2",
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&val));
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ut_asserteq_str("foobar2", val);
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return CMD_RET_SUCCESS;
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}
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OVERLAY_TEST(fdt_overlay_add_str_property, 0);
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static int fdt_overlay_add_node_by_phandle(struct unit_test_state *uts)
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{
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void *fdt = uts->priv;
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int off;
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off = fdt_path_offset(fdt, "/test-node/new-node");
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ut_assert(off >= 0);
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ut_assertnonnull(fdt_getprop(fdt, off, "new-property", NULL));
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return CMD_RET_SUCCESS;
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}
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OVERLAY_TEST(fdt_overlay_add_node_by_phandle, 0);
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static int fdt_overlay_add_node_by_path(struct unit_test_state *uts)
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{
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void *fdt = uts->priv;
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int off;
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off = fdt_path_offset(fdt, "/new-node");
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ut_assert(off >= 0);
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ut_assertnonnull(fdt_getprop(fdt, off, "new-property", NULL));
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return CMD_RET_SUCCESS;
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}
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OVERLAY_TEST(fdt_overlay_add_node_by_path, 0);
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static int fdt_overlay_add_subnode_property(struct unit_test_state *uts)
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{
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void *fdt = uts->priv;
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int off;
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off = fdt_path_offset(fdt, "/test-node/sub-test-node");
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ut_assert(off >= 0);
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ut_assertnonnull(fdt_getprop(fdt, off, "sub-test-property", NULL));
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ut_assertnonnull(fdt_getprop(fdt, off, "new-sub-test-property", NULL));
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return CMD_RET_SUCCESS;
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}
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OVERLAY_TEST(fdt_overlay_add_subnode_property, 0);
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static int fdt_overlay_local_phandle(struct unit_test_state *uts)
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{
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uint32_t local_phandle;
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void *fdt = uts->priv;
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u32 val = 0;
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int off;
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off = fdt_path_offset(fdt, "/new-local-node");
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ut_assert(off >= 0);
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local_phandle = fdt_get_phandle(fdt, off);
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ut_assert(local_phandle);
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ut_assertok(fdt_getprop_u32_by_index(fdt, "/", "test-several-phandle",
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0, &val));
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ut_asserteq(local_phandle, val);
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ut_assertok(fdt_getprop_u32_by_index(fdt, "/", "test-several-phandle",
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1, &val));
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ut_asserteq(local_phandle, val);
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return CMD_RET_SUCCESS;
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}
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OVERLAY_TEST(fdt_overlay_local_phandle, 0);
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static int fdt_overlay_local_phandles(struct unit_test_state *uts)
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{
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uint32_t local_phandle, test_phandle;
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void *fdt = uts->priv;
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u32 val = 0;
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int off;
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off = fdt_path_offset(fdt, "/new-local-node");
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ut_assert(off >= 0);
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local_phandle = fdt_get_phandle(fdt, off);
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ut_assert(local_phandle);
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off = fdt_path_offset(fdt, "/test-node");
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ut_assert(off >= 0);
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test_phandle = fdt_get_phandle(fdt, off);
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ut_assert(test_phandle);
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ut_assertok(fdt_getprop_u32_by_index(fdt, "/", "test-phandle", 0,
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&val));
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ut_asserteq(test_phandle, val);
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ut_assertok(fdt_getprop_u32_by_index(fdt, "/", "test-phandle", 1,
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&val));
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ut_asserteq(local_phandle, val);
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return CMD_RET_SUCCESS;
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}
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OVERLAY_TEST(fdt_overlay_local_phandles, 0);
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int do_ut_overlay(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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struct unit_test *tests = ll_entry_start(struct unit_test,
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overlay_test);
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const int n_ents = ll_entry_count(struct unit_test, overlay_test);
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struct unit_test_state *uts;
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struct unit_test *test;
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void *fdt_base = &__dtb_test_fdt_base_begin;
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void *fdt_overlay = &__dtb_test_fdt_overlay_begin;
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void *fdt_base_copy, *fdt_overlay_copy;
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uts = calloc(1, sizeof(*uts));
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if (!uts)
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return -ENOMEM;
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ut_assertok(fdt_check_header(fdt_base));
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ut_assertok(fdt_check_header(fdt_overlay));
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fdt_base_copy = malloc(FDT_COPY_SIZE);
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if (!fdt_base_copy)
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return -ENOMEM;
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uts->priv = fdt_base_copy;
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fdt_overlay_copy = malloc(FDT_COPY_SIZE);
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if (!fdt_overlay_copy)
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return -ENOMEM;
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/*
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* Resize the FDT to 4k so that we have room to operate on
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*
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* (and relocate it since the memory might be mapped
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* read-only)
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*/
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ut_assertok(fdt_open_into(fdt_base, fdt_base_copy, FDT_COPY_SIZE));
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/*
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* Resize the overlay to 4k so that we have room to operate on
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*
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* (and relocate it since the memory might be mapped
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* read-only)
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*/
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ut_assertok(fdt_open_into(fdt_overlay, fdt_overlay_copy,
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FDT_COPY_SIZE));
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/* Apply the overlay */
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ut_assertok(fdt_overlay_apply(fdt_base_copy, fdt_overlay_copy));
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if (argc == 1)
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printf("Running %d environment tests\n", n_ents);
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for (test = tests; test < tests + n_ents; test++) {
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if (argc > 1 && strcmp(argv[1], test->name))
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continue;
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printf("Test: %s\n", test->name);
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uts->start = mallinfo();
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test->func(uts);
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}
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printf("Failures: %d\n", uts->fail_count);
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free(fdt_overlay_copy);
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free(fdt_base_copy);
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free(uts);
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return uts->fail_count ? CMD_RET_FAILURE : 0;
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}
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