fdtdec: test: Add carveout tests
Implement carveout tests for 32-bit and 64-bit builds. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
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@ -141,6 +141,156 @@ static int run_test(const char *aliases, const char *nodes, const char *expect)
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return 0;
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}
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static int make_fdt_carveout_device(void *fdt, uint32_t na, uint32_t ns)
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{
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const char *basename = "/display";
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struct fdt_memory carveout = {
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#ifdef CONFIG_PHYS_64BIT
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.start = 0x180000000,
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.end = 0x18fffffff,
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#else
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.start = 0x80000000,
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.end = 0x8fffffff,
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#endif
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};
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fdt32_t cells[4], *ptr = cells;
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uint32_t upper, lower;
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char name[32];
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int offset;
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/* store one or two address cells */
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lower = fdt_addr_unpack(carveout.start, &upper);
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if (na > 1 && upper > 0)
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snprintf(name, sizeof(name), "%s@%x,%x", basename, upper,
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lower);
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else
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snprintf(name, sizeof(name), "%s@%x", basename, lower);
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if (na > 1)
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*ptr++ = cpu_to_fdt32(upper);
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*ptr++ = cpu_to_fdt32(lower);
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/* store one or two size cells */
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lower = fdt_size_unpack(carveout.end - carveout.start + 1, &upper);
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if (ns > 1)
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*ptr++ = cpu_to_fdt32(upper);
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*ptr++ = cpu_to_fdt32(lower);
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offset = CHECK(fdt_add_subnode(fdt, 0, name + 1));
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CHECK(fdt_setprop(fdt, offset, "reg", cells, (na + ns) * sizeof(*cells)));
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return fdtdec_set_carveout(fdt, name, "memory-region", 0,
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"framebuffer", &carveout);
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}
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static int check_fdt_carveout(void *fdt, uint32_t address_cells,
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uint32_t size_cells)
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{
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#ifdef CONFIG_PHYS_64BIT
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const char *name = "/display@1,80000000";
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const struct fdt_memory expected = {
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.start = 0x180000000,
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.end = 0x18fffffff,
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};
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#else
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const char *name = "/display@80000000";
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const struct fdt_memory expected = {
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.start = 0x80000000,
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.end = 0x8fffffff,
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};
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#endif
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struct fdt_memory carveout;
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printf("carveout: %pap-%pap na=%u ns=%u: ", &expected.start,
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&expected.end, address_cells, size_cells);
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CHECK(fdtdec_get_carveout(fdt, name, "memory-region", 0, &carveout));
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if ((carveout.start != expected.start) ||
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(carveout.end != expected.end)) {
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printf("carveout: %pap-%pap, expected %pap-%pap\n",
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&carveout.start, &carveout.end,
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&expected.start, &expected.end);
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return 1;
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}
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printf("pass\n");
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return 0;
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}
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static int make_fdt_carveout(void *fdt, int size, uint32_t address_cells,
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uint32_t size_cells)
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{
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fdt32_t na = cpu_to_fdt32(address_cells);
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fdt32_t ns = cpu_to_fdt32(size_cells);
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#if defined(DEBUG) && defined(CONFIG_SANDBOX)
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char filename[512];
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int fd;
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#endif
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int err;
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CHECK(fdt_create(fdt, size));
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CHECK(fdt_finish_reservemap(fdt));
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CHECK(fdt_begin_node(fdt, ""));
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CHECK(fdt_property(fdt, "#address-cells", &na, sizeof(na)));
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CHECK(fdt_property(fdt, "#size-cells", &ns, sizeof(ns)));
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CHECK(fdt_end_node(fdt));
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CHECK(fdt_finish(fdt));
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CHECK(fdt_pack(fdt));
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CHECK(fdt_open_into(fdt, fdt, FDT_SIZE));
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err = make_fdt_carveout_device(fdt, address_cells, size_cells);
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#if defined(DEBUG) && defined(CONFIG_SANDBOX)
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snprintf(filename, sizeof(filename), "/tmp/fdtdec-carveout-%u-%u.dtb",
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address_cells, size_cells);
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fd = os_open(filename, OS_O_CREAT | OS_O_WRONLY);
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if (fd < 0) {
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printf("could not open .dtb file to write\n");
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goto out;
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}
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os_write(fd, fdt, size);
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os_close(fd);
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out:
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#endif
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return err;
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}
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static int check_carveout(void)
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{
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void *fdt;
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fdt = malloc(FDT_SIZE);
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if (!fdt) {
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printf("%s: out of memory\n", __func__);
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return 1;
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}
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#ifndef CONFIG_PHYS_64BIT
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CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 1), 0);
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CHECKOK(check_fdt_carveout(fdt, 1, 1));
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CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 2), 0);
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CHECKOK(check_fdt_carveout(fdt, 1, 2));
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#else
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CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 1), -FDT_ERR_BADVALUE);
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CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 2), -FDT_ERR_BADVALUE);
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#endif
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CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 2, 1), 0);
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CHECKOK(check_fdt_carveout(fdt, 2, 1));
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CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 2, 2), 0);
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CHECKOK(check_fdt_carveout(fdt, 2, 2));
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return 0;
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}
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static int do_test_fdtdec(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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@ -182,6 +332,8 @@ static int do_test_fdtdec(cmd_tbl_t *cmdtp, int flag, int argc,
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CHECKOK(run_test("2a 1a 0a", "a", " a"));
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CHECKOK(run_test("0a 1a 2a", "a", "a"));
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CHECKOK(check_carveout());
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printf("Test passed\n");
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return 0;
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}
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