libfdt: add fdt_append_addrrange()
This function will append an address range property using parent node's
"#address-cells" and "#size-cells" properties.
It will be used in implementing kdump with kexec_file_load system call
at linux kernel for arm64 once it is merged into kernel tree.
Signed-off-by: AKASHI Takahiro <[email protected]>
Message-Id: <[email protected]>
[dwg: Correct a SEGV error in the testcase]
Signed-off-by: David Gibson <[email protected]>
diff --git a/tests/testutils.c b/tests/testutils.c
index bbfda90..a250d5a 100644
--- a/tests/testutils.c
+++ b/tests/testutils.c
@@ -45,6 +45,7 @@
#include <libfdt.h>
#include "tests.h"
+#include "testdata.h"
/* For FDT_SW_MAGIC */
#include "libfdt_internal.h"
@@ -184,6 +185,63 @@
return propval;
}
+const void *check_getprop_addrrange(void *fdt, int parent, int nodeoffset,
+ const char *name, int num)
+{
+ const void *propval;
+ int xac, xsc, buf_size, cells, i;
+ char *buf, *p;
+ uint64_t addr, size;
+ fdt32_t val;
+
+ xac = fdt_address_cells(fdt, parent);
+ xsc = fdt_size_cells(fdt, parent);
+
+ if (xac <= 0)
+ FAIL("Couldn't identify #address-cells: %s",
+ fdt_strerror(xac));
+ if (xsc <= 0)
+ FAIL("Couldn't identify #size-cells: %s",
+ fdt_strerror(xsc));
+
+ buf_size = (xac + xsc) * sizeof(fdt32_t) * num;
+ buf = malloc(buf_size);
+ if (!buf)
+ FAIL("Couldn't allocate temporary buffer");
+
+ /* expected value */
+ addr = TEST_MEMREGION_ADDR;
+ if (xac > 1)
+ addr += TEST_MEMREGION_ADDR_HI;
+ size = TEST_MEMREGION_SIZE;
+ if (xsc > 1)
+ size += TEST_MEMREGION_SIZE_HI;
+ for (p = buf, i = 0; i < num; i++) {
+ cells = xac;
+ while (cells) {
+ val = cpu_to_fdt32(addr >> (32 * (--cells)));
+ memcpy(p, &val, sizeof(val));
+ p += sizeof(val);
+ }
+ cells = xsc;
+ while (cells) {
+ val = cpu_to_fdt32(size >> (32 * (--cells)));
+ memcpy(p, &val, sizeof(val));
+ p += sizeof(val);
+ }
+
+ addr += size;
+ size += TEST_MEMREGION_SIZE_INC;
+ }
+
+ /* check */
+ propval = check_getprop(fdt, nodeoffset, name, buf_size,
+ (const void *)buf);
+
+ free(buf);
+
+ return propval;
+}
int nodename_eq(const char *s1, const char *s2)
{
