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Reserved memory nodes can have additional flags. Support reading and writing these flags to ensure that reserved memory nodes can be properly parsed and emitted. This converts support for the existing "no-map" flag to avoid extending the argument list for fdtdec_add_reserved_memory() to excessive length. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2020 NXP
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*/
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#include <common.h>
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#include <dm.h>
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#include <asm/global_data.h>
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#include <dm/of_extra.h>
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#include <dm/test.h>
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#include <test/ut.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int dm_test_fdtdec_set_carveout(struct unit_test_state *uts)
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{
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struct fdt_memory resv;
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void *blob;
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const fdt32_t *prop;
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int blob_sz, len, offset;
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blob_sz = fdt_totalsize(gd->fdt_blob) + 4096;
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blob = malloc(blob_sz);
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ut_assertnonnull(blob);
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/* Make a writable copy of the fdt blob */
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ut_assertok(fdt_open_into(gd->fdt_blob, blob, blob_sz));
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resv.start = 0x1000;
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resv.end = 0x2000;
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ut_assertok(fdtdec_set_carveout(blob, "/a-test", "memory-region", 2,
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&resv, "test_resv1", NULL, 0, 0));
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resv.start = 0x10000;
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resv.end = 0x20000;
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ut_assertok(fdtdec_set_carveout(blob, "/a-test", "memory-region", 1,
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&resv, "test_resv2", NULL, 0, 0));
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resv.start = 0x100000;
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resv.end = 0x200000;
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ut_assertok(fdtdec_set_carveout(blob, "/a-test", "memory-region", 0,
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&resv, "test_resv3", NULL, 0, 0));
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offset = fdt_path_offset(blob, "/a-test");
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ut_assert(offset > 0);
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prop = fdt_getprop(blob, offset, "memory-region", &len);
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ut_assertnonnull(prop);
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ut_asserteq(len, 12);
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ut_assert(fdt_node_offset_by_phandle(blob, fdt32_to_cpu(prop[0])) > 0);
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ut_assert(fdt_node_offset_by_phandle(blob, fdt32_to_cpu(prop[1])) > 0);
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ut_assert(fdt_node_offset_by_phandle(blob, fdt32_to_cpu(prop[2])) > 0);
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free(blob);
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return 0;
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}
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DM_TEST(dm_test_fdtdec_set_carveout,
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UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
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static int dm_test_fdtdec_add_reserved_memory(struct unit_test_state *uts)
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{
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struct fdt_memory resv;
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fdt_addr_t addr;
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fdt_size_t size;
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void *blob;
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unsigned long flags = FDTDEC_RESERVED_MEMORY_NO_MAP;
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int blob_sz, parent, subnode;
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uint32_t phandle, phandle1;
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blob_sz = fdt_totalsize(gd->fdt_blob) + 128;
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blob = malloc(blob_sz);
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ut_assertnonnull(blob);
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/* Make a writable copy of the fdt blob */
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ut_assertok(fdt_open_into(gd->fdt_blob, blob, blob_sz));
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/* Insert a memory region in /reserved-memory node */
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resv.start = 0x1000;
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resv.end = 0x1fff;
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ut_assertok(fdtdec_add_reserved_memory(blob, "rsvd_region", &resv,
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NULL, 0, &phandle, 0));
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/* Test /reserve-memory and its subnode should exist */
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parent = fdt_path_offset(blob, "/reserved-memory");
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ut_assert(parent > 0);
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subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region");
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ut_assert(subnode > 0);
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/* Test reg property of /reserved-memory/rsvd_region node */
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addr = fdtdec_get_addr_size_auto_parent(blob, parent, subnode,
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"reg", 0, &size, false);
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ut_assert(addr == resv.start);
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ut_assert(size == resv.end - resv.start + 1);
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/* Insert another memory region in /reserved-memory node */
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subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region1");
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ut_assert(subnode < 0);
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resv.start = 0x2000;
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resv.end = 0x2fff;
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ut_assertok(fdtdec_add_reserved_memory(blob, "rsvd_region1", &resv,
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NULL, 0, &phandle1, flags));
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subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region1");
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ut_assert(subnode > 0);
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/* check that no-map property is present */
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ut_assert(fdt_getprop(blob, subnode, "no-map", NULL) > 0);
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/* phandles must be different */
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ut_assert(phandle != phandle1);
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/*
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* Insert a 3rd memory region with the same addr/size as the 1st one,
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* but a new node should not be inserted due to the same addr/size.
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*/
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resv.start = 0x1000;
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resv.end = 0x1fff;
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ut_assertok(fdtdec_add_reserved_memory(blob, "rsvd_region2", &resv,
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NULL, 0, &phandle1, 0));
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subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region2");
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ut_assert(subnode < 0);
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/* phandle must be same as the 1st one */
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ut_assert(phandle == phandle1);
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free(blob);
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return 0;
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}
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DM_TEST(dm_test_fdtdec_add_reserved_memory,
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UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
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