Randolph SappandTom Rini
de12fa4df8
Add a image_fdt suite and a check for boot_fdt_add_mem_rsv_regions. This will ensure the user is properly informed of any reservation failures. It will also validate that reservations are cleaned up correctly when switching FDTs. Signed-off-by: Randolph Sapp <rs@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2026 Texas Instruments Incorporated - https://www.ti.com/
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*/
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#include <config.h>
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#include <fdt_support.h>
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#include <image.h>
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#include <lmb.h>
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#include <malloc.h>
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#include <asm/global_data.h>
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#include <test/test.h>
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#include <test/ut.h>
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#define IMAGE_FDT_TEST(_name, _flags) UNIT_TEST(_name, _flags, image_fdt)
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DECLARE_GLOBAL_DATA_PTR;
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/**
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* test_boot_fdt_add_mem_rsv_regions - Make sure dt reservations are created and
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* destroyed correctly
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* @uts: Test state
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*
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* This test depends on the UT_DM device tree and ensures the following
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* statements hold true: The default reservation in test.dtb exists.
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* Re-reserving that region will result in an error. Loading a new device tree
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* will remove old reservations.
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*/
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static int test_boot_fdt_add_mem_rsv_regions(struct unit_test_state *uts)
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{
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phys_addr_t start = CFG_SYS_SDRAM_BASE + 0x100000;
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const void *old_blob = gd->fdt_blob;
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int ret = CMD_RET_FAILURE;
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ulong fdt_sz;
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int nodeoffset;
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void *new_blob;
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/* Default reservation should exist */
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ut_asserteq(1, lmb_is_reserved_flags(start, LMB_NOMAP));
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/* Attempting to re-reserve should warn the user */
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boot_fdt_add_mem_rsv_regions(gd->fdt_blob);
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ut_assert_nextlinen("ERROR: reserving");
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ut_assert_console_end();
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/* Loading a new_blob device tree should be allowed */
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fdt_sz = fdt_totalsize(gd->fdt_blob);
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new_blob = malloc(fdt_sz);
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ut_assertnonnull(new_blob);
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memcpy(new_blob, gd->fdt_blob, fdt_sz);
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nodeoffset = fdt_path_offset(new_blob, "/reserved-memory");
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if (nodeoffset < 0)
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goto free_blob;
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if (fdt_del_node(new_blob, nodeoffset))
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goto free_blob;
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boot_fdt_add_mem_rsv_regions(new_blob);
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gd->fdt_blob = new_blob;
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if (ut_check_console_end(uts)) {
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ut_failf(uts, __FILE__, __LINE__, __func__, "console",
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"Expected no more output, got '%s'", uts->actual_str);
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goto switch_fdt;
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}
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/* Reservation should not exist now */
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if (!lmb_is_reserved_flags(start, LMB_NOMAP))
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ret = 0;
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/* Cleanup */
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switch_fdt:
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boot_fdt_add_mem_rsv_regions(old_blob);
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gd->fdt_blob = old_blob;
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free_blob:
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free(new_blob);
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return ret;
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}
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IMAGE_FDT_TEST(test_boot_fdt_add_mem_rsv_regions, UTF_CONSOLE);
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