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fdtdec: test: Add carveout tests

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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>
This commit is contained in:
Thierry Reding 2019-03-21 19:10:07 +01:00 committed by Simon Glass
parent a95460a45b
commit 4e4bde30c6
1 changed files with 152 additions and 0 deletions
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152
lib/fdtdec_test.c
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@ -141,6 +141,156 @@ static int run_test(const char *aliases, const char *nodes, const char *expect)
return 0;
}
static int make_fdt_carveout_device(void *fdt, uint32_t na, uint32_t ns)
{
const char *basename = "/display";
struct fdt_memory carveout = {
#ifdef CONFIG_PHYS_64BIT
.start = 0x180000000,
.end = 0x18fffffff,
#else
.start = 0x80000000,
.end = 0x8fffffff,
#endif
};
fdt32_t cells[4], *ptr = cells;
uint32_t upper, lower;
char name[32];
int offset;
/* store one or two address cells */
lower = fdt_addr_unpack(carveout.start, &upper);
if (na > 1 && upper > 0)
snprintf(name, sizeof(name), "%s@%x,%x", basename, upper,
lower);
else
snprintf(name, sizeof(name), "%s@%x", basename, lower);
if (na > 1)
*ptr++ = cpu_to_fdt32(upper);
*ptr++ = cpu_to_fdt32(lower);
/* store one or two size cells */
lower = fdt_size_unpack(carveout.end - carveout.start + 1, &upper);
if (ns > 1)
*ptr++ = cpu_to_fdt32(upper);
*ptr++ = cpu_to_fdt32(lower);
offset = CHECK(fdt_add_subnode(fdt, 0, name + 1));
CHECK(fdt_setprop(fdt, offset, "reg", cells, (na + ns) * sizeof(*cells)));
return fdtdec_set_carveout(fdt, name, "memory-region", 0,
"framebuffer", &carveout);
}
static int check_fdt_carveout(void *fdt, uint32_t address_cells,
uint32_t size_cells)
{
#ifdef CONFIG_PHYS_64BIT
const char *name = "/display@1,80000000";
const struct fdt_memory expected = {
.start = 0x180000000,
.end = 0x18fffffff,
};
#else
const char *name = "/display@80000000";
const struct fdt_memory expected = {
.start = 0x80000000,
.end = 0x8fffffff,
};
#endif
struct fdt_memory carveout;
printf("carveout: %pap-%pap na=%u ns=%u: ", &expected.start,
&expected.end, address_cells, size_cells);
CHECK(fdtdec_get_carveout(fdt, name, "memory-region", 0, &carveout));
if ((carveout.start != expected.start) ||
(carveout.end != expected.end)) {
printf("carveout: %pap-%pap, expected %pap-%pap\n",
&carveout.start, &carveout.end,
&expected.start, &expected.end);
return 1;
}
printf("pass\n");
return 0;
}
static int make_fdt_carveout(void *fdt, int size, uint32_t address_cells,
uint32_t size_cells)
{
fdt32_t na = cpu_to_fdt32(address_cells);
fdt32_t ns = cpu_to_fdt32(size_cells);
#if defined(DEBUG) && defined(CONFIG_SANDBOX)
char filename[512];
int fd;
#endif
int err;
CHECK(fdt_create(fdt, size));
CHECK(fdt_finish_reservemap(fdt));
CHECK(fdt_begin_node(fdt, ""));
CHECK(fdt_property(fdt, "#address-cells", &na, sizeof(na)));
CHECK(fdt_property(fdt, "#size-cells", &ns, sizeof(ns)));
CHECK(fdt_end_node(fdt));
CHECK(fdt_finish(fdt));
CHECK(fdt_pack(fdt));
CHECK(fdt_open_into(fdt, fdt, FDT_SIZE));
err = make_fdt_carveout_device(fdt, address_cells, size_cells);
#if defined(DEBUG) && defined(CONFIG_SANDBOX)
snprintf(filename, sizeof(filename), "/tmp/fdtdec-carveout-%u-%u.dtb",
address_cells, size_cells);
fd = os_open(filename, OS_O_CREAT | OS_O_WRONLY);
if (fd < 0) {
printf("could not open .dtb file to write\n");
goto out;
}
os_write(fd, fdt, size);
os_close(fd);
out:
#endif
return err;
}
static int check_carveout(void)
{
void *fdt;
fdt = malloc(FDT_SIZE);
if (!fdt) {
printf("%s: out of memory\n", __func__);
return 1;
}
#ifndef CONFIG_PHYS_64BIT
CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 1), 0);
CHECKOK(check_fdt_carveout(fdt, 1, 1));
CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 2), 0);
CHECKOK(check_fdt_carveout(fdt, 1, 2));
#else
CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 1), -FDT_ERR_BADVALUE);
CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 2), -FDT_ERR_BADVALUE);
#endif
CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 2, 1), 0);
CHECKOK(check_fdt_carveout(fdt, 2, 1));
CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 2, 2), 0);
CHECKOK(check_fdt_carveout(fdt, 2, 2));
return 0;
}
static int do_test_fdtdec(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
@ -182,6 +332,8 @@ static int do_test_fdtdec(cmd_tbl_t *cmdtp, int flag, int argc,
CHECKOK(run_test("2a 1a 0a", "a", " a"));
CHECKOK(run_test("0a 1a 2a", "a", "a"));
CHECKOK(check_carveout());
printf("Test passed\n");
return 0;
}