mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-06 02:24:14 +08:00
828d4cdd01
Fix the following compile error found on odroid-xu4: checks.c: In function ‘check_simple_bus_reg’: checks.c:876:41: error: format ‘%lx’ expects argument of type ‘long unsigned int’, but argument 4 has type ‘uint64_t{aka long long unsigned int}’ [-Werror=format=] snprintf(unit_addr, sizeof(unit_addr), "%lx", reg); ^ checks.c:876:41: error: format ‘%lx’ expects argument of type ‘long unsigned int’, but argument 4 has type ‘uint64_t {aka long long unsigned int}’ [-Werror=format=] cc1: all warnings being treated as errors Makefile:304: recipe for target 'checks.o' failed make: *** [checks.o] Error 1 Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> [dwg: Correct new format to be correct in general] Signed-off-by: David Gibson <david@gibson.dropbear.id.au> [robh: cherry-picked from upstream dtc commit 2a42b14d0d03] Signed-off-by: Rob Herring <robh@kernel.org>
1077 lines
28 KiB
C
1077 lines
28 KiB
C
/*
|
|
* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2007.
|
|
*
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
|
|
* USA
|
|
*/
|
|
|
|
#include "dtc.h"
|
|
|
|
#ifdef TRACE_CHECKS
|
|
#define TRACE(c, ...) \
|
|
do { \
|
|
fprintf(stderr, "=== %s: ", (c)->name); \
|
|
fprintf(stderr, __VA_ARGS__); \
|
|
fprintf(stderr, "\n"); \
|
|
} while (0)
|
|
#else
|
|
#define TRACE(c, fmt, ...) do { } while (0)
|
|
#endif
|
|
|
|
enum checkstatus {
|
|
UNCHECKED = 0,
|
|
PREREQ,
|
|
PASSED,
|
|
FAILED,
|
|
};
|
|
|
|
struct check;
|
|
|
|
typedef void (*check_fn)(struct check *c, struct dt_info *dti, struct node *node);
|
|
|
|
struct check {
|
|
const char *name;
|
|
check_fn fn;
|
|
void *data;
|
|
bool warn, error;
|
|
enum checkstatus status;
|
|
bool inprogress;
|
|
int num_prereqs;
|
|
struct check **prereq;
|
|
};
|
|
|
|
#define CHECK_ENTRY(_nm, _fn, _d, _w, _e, ...) \
|
|
static struct check *_nm##_prereqs[] = { __VA_ARGS__ }; \
|
|
static struct check _nm = { \
|
|
.name = #_nm, \
|
|
.fn = (_fn), \
|
|
.data = (_d), \
|
|
.warn = (_w), \
|
|
.error = (_e), \
|
|
.status = UNCHECKED, \
|
|
.num_prereqs = ARRAY_SIZE(_nm##_prereqs), \
|
|
.prereq = _nm##_prereqs, \
|
|
};
|
|
#define WARNING(_nm, _fn, _d, ...) \
|
|
CHECK_ENTRY(_nm, _fn, _d, true, false, __VA_ARGS__)
|
|
#define ERROR(_nm, _fn, _d, ...) \
|
|
CHECK_ENTRY(_nm, _fn, _d, false, true, __VA_ARGS__)
|
|
#define CHECK(_nm, _fn, _d, ...) \
|
|
CHECK_ENTRY(_nm, _fn, _d, false, false, __VA_ARGS__)
|
|
|
|
static inline void PRINTF(3, 4) check_msg(struct check *c, struct dt_info *dti,
|
|
const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
|
|
if ((c->warn && (quiet < 1))
|
|
|| (c->error && (quiet < 2))) {
|
|
fprintf(stderr, "%s: %s (%s): ",
|
|
strcmp(dti->outname, "-") ? dti->outname : "<stdout>",
|
|
(c->error) ? "ERROR" : "Warning", c->name);
|
|
vfprintf(stderr, fmt, ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
va_end(ap);
|
|
}
|
|
|
|
#define FAIL(c, dti, ...) \
|
|
do { \
|
|
TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__); \
|
|
(c)->status = FAILED; \
|
|
check_msg((c), dti, __VA_ARGS__); \
|
|
} while (0)
|
|
|
|
static void check_nodes_props(struct check *c, struct dt_info *dti, struct node *node)
|
|
{
|
|
struct node *child;
|
|
|
|
TRACE(c, "%s", node->fullpath);
|
|
if (c->fn)
|
|
c->fn(c, dti, node);
|
|
|
|
for_each_child(node, child)
|
|
check_nodes_props(c, dti, child);
|
|
}
|
|
|
|
static bool run_check(struct check *c, struct dt_info *dti)
|
|
{
|
|
struct node *dt = dti->dt;
|
|
bool error = false;
|
|
int i;
|
|
|
|
assert(!c->inprogress);
|
|
|
|
if (c->status != UNCHECKED)
|
|
goto out;
|
|
|
|
c->inprogress = true;
|
|
|
|
for (i = 0; i < c->num_prereqs; i++) {
|
|
struct check *prq = c->prereq[i];
|
|
error = error || run_check(prq, dti);
|
|
if (prq->status != PASSED) {
|
|
c->status = PREREQ;
|
|
check_msg(c, dti, "Failed prerequisite '%s'",
|
|
c->prereq[i]->name);
|
|
}
|
|
}
|
|
|
|
if (c->status != UNCHECKED)
|
|
goto out;
|
|
|
|
check_nodes_props(c, dti, dt);
|
|
|
|
if (c->status == UNCHECKED)
|
|
c->status = PASSED;
|
|
|
|
TRACE(c, "\tCompleted, status %d", c->status);
|
|
|
|
out:
|
|
c->inprogress = false;
|
|
if ((c->status != PASSED) && (c->error))
|
|
error = true;
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Utility check functions
|
|
*/
|
|
|
|
/* A check which always fails, for testing purposes only */
|
|
static inline void check_always_fail(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
FAIL(c, dti, "always_fail check");
|
|
}
|
|
CHECK(always_fail, check_always_fail, NULL);
|
|
|
|
static void check_is_string(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property *prop;
|
|
char *propname = c->data;
|
|
|
|
prop = get_property(node, propname);
|
|
if (!prop)
|
|
return; /* Not present, assumed ok */
|
|
|
|
if (!data_is_one_string(prop->val))
|
|
FAIL(c, dti, "\"%s\" property in %s is not a string",
|
|
propname, node->fullpath);
|
|
}
|
|
#define WARNING_IF_NOT_STRING(nm, propname) \
|
|
WARNING(nm, check_is_string, (propname))
|
|
#define ERROR_IF_NOT_STRING(nm, propname) \
|
|
ERROR(nm, check_is_string, (propname))
|
|
|
|
static void check_is_cell(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property *prop;
|
|
char *propname = c->data;
|
|
|
|
prop = get_property(node, propname);
|
|
if (!prop)
|
|
return; /* Not present, assumed ok */
|
|
|
|
if (prop->val.len != sizeof(cell_t))
|
|
FAIL(c, dti, "\"%s\" property in %s is not a single cell",
|
|
propname, node->fullpath);
|
|
}
|
|
#define WARNING_IF_NOT_CELL(nm, propname) \
|
|
WARNING(nm, check_is_cell, (propname))
|
|
#define ERROR_IF_NOT_CELL(nm, propname) \
|
|
ERROR(nm, check_is_cell, (propname))
|
|
|
|
/*
|
|
* Structural check functions
|
|
*/
|
|
|
|
static void check_duplicate_node_names(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct node *child, *child2;
|
|
|
|
for_each_child(node, child)
|
|
for (child2 = child->next_sibling;
|
|
child2;
|
|
child2 = child2->next_sibling)
|
|
if (streq(child->name, child2->name))
|
|
FAIL(c, dti, "Duplicate node name %s",
|
|
child->fullpath);
|
|
}
|
|
ERROR(duplicate_node_names, check_duplicate_node_names, NULL);
|
|
|
|
static void check_duplicate_property_names(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property *prop, *prop2;
|
|
|
|
for_each_property(node, prop) {
|
|
for (prop2 = prop->next; prop2; prop2 = prop2->next) {
|
|
if (prop2->deleted)
|
|
continue;
|
|
if (streq(prop->name, prop2->name))
|
|
FAIL(c, dti, "Duplicate property name %s in %s",
|
|
prop->name, node->fullpath);
|
|
}
|
|
}
|
|
}
|
|
ERROR(duplicate_property_names, check_duplicate_property_names, NULL);
|
|
|
|
#define LOWERCASE "abcdefghijklmnopqrstuvwxyz"
|
|
#define UPPERCASE "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
|
#define DIGITS "0123456789"
|
|
#define PROPNODECHARS LOWERCASE UPPERCASE DIGITS ",._+*#?-"
|
|
#define PROPNODECHARSSTRICT LOWERCASE UPPERCASE DIGITS ",-"
|
|
|
|
static void check_node_name_chars(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
int n = strspn(node->name, c->data);
|
|
|
|
if (n < strlen(node->name))
|
|
FAIL(c, dti, "Bad character '%c' in node %s",
|
|
node->name[n], node->fullpath);
|
|
}
|
|
ERROR(node_name_chars, check_node_name_chars, PROPNODECHARS "@");
|
|
|
|
static void check_node_name_chars_strict(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
int n = strspn(node->name, c->data);
|
|
|
|
if (n < node->basenamelen)
|
|
FAIL(c, dti, "Character '%c' not recommended in node %s",
|
|
node->name[n], node->fullpath);
|
|
}
|
|
CHECK(node_name_chars_strict, check_node_name_chars_strict, PROPNODECHARSSTRICT);
|
|
|
|
static void check_node_name_format(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
if (strchr(get_unitname(node), '@'))
|
|
FAIL(c, dti, "Node %s has multiple '@' characters in name",
|
|
node->fullpath);
|
|
}
|
|
ERROR(node_name_format, check_node_name_format, NULL, &node_name_chars);
|
|
|
|
static void check_unit_address_vs_reg(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
const char *unitname = get_unitname(node);
|
|
struct property *prop = get_property(node, "reg");
|
|
|
|
if (!prop) {
|
|
prop = get_property(node, "ranges");
|
|
if (prop && !prop->val.len)
|
|
prop = NULL;
|
|
}
|
|
|
|
if (prop) {
|
|
if (!unitname[0])
|
|
FAIL(c, dti, "Node %s has a reg or ranges property, but no unit name",
|
|
node->fullpath);
|
|
} else {
|
|
if (unitname[0])
|
|
FAIL(c, dti, "Node %s has a unit name, but no reg property",
|
|
node->fullpath);
|
|
}
|
|
}
|
|
WARNING(unit_address_vs_reg, check_unit_address_vs_reg, NULL);
|
|
|
|
static void check_property_name_chars(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property *prop;
|
|
|
|
for_each_property(node, prop) {
|
|
int n = strspn(prop->name, c->data);
|
|
|
|
if (n < strlen(prop->name))
|
|
FAIL(c, dti, "Bad character '%c' in property name \"%s\", node %s",
|
|
prop->name[n], prop->name, node->fullpath);
|
|
}
|
|
}
|
|
ERROR(property_name_chars, check_property_name_chars, PROPNODECHARS);
|
|
|
|
static void check_property_name_chars_strict(struct check *c,
|
|
struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property *prop;
|
|
|
|
for_each_property(node, prop) {
|
|
const char *name = prop->name;
|
|
int n = strspn(name, c->data);
|
|
|
|
if (n == strlen(prop->name))
|
|
continue;
|
|
|
|
/* Certain names are whitelisted */
|
|
if (streq(name, "device_type"))
|
|
continue;
|
|
|
|
/*
|
|
* # is only allowed at the beginning of property names not counting
|
|
* the vendor prefix.
|
|
*/
|
|
if (name[n] == '#' && ((n == 0) || (name[n-1] == ','))) {
|
|
name += n + 1;
|
|
n = strspn(name, c->data);
|
|
}
|
|
if (n < strlen(name))
|
|
FAIL(c, dti, "Character '%c' not recommended in property name \"%s\", node %s",
|
|
name[n], prop->name, node->fullpath);
|
|
}
|
|
}
|
|
CHECK(property_name_chars_strict, check_property_name_chars_strict, PROPNODECHARSSTRICT);
|
|
|
|
#define DESCLABEL_FMT "%s%s%s%s%s"
|
|
#define DESCLABEL_ARGS(node,prop,mark) \
|
|
((mark) ? "value of " : ""), \
|
|
((prop) ? "'" : ""), \
|
|
((prop) ? (prop)->name : ""), \
|
|
((prop) ? "' in " : ""), (node)->fullpath
|
|
|
|
static void check_duplicate_label(struct check *c, struct dt_info *dti,
|
|
const char *label, struct node *node,
|
|
struct property *prop, struct marker *mark)
|
|
{
|
|
struct node *dt = dti->dt;
|
|
struct node *othernode = NULL;
|
|
struct property *otherprop = NULL;
|
|
struct marker *othermark = NULL;
|
|
|
|
othernode = get_node_by_label(dt, label);
|
|
|
|
if (!othernode)
|
|
otherprop = get_property_by_label(dt, label, &othernode);
|
|
if (!othernode)
|
|
othermark = get_marker_label(dt, label, &othernode,
|
|
&otherprop);
|
|
|
|
if (!othernode)
|
|
return;
|
|
|
|
if ((othernode != node) || (otherprop != prop) || (othermark != mark))
|
|
FAIL(c, dti, "Duplicate label '%s' on " DESCLABEL_FMT
|
|
" and " DESCLABEL_FMT,
|
|
label, DESCLABEL_ARGS(node, prop, mark),
|
|
DESCLABEL_ARGS(othernode, otherprop, othermark));
|
|
}
|
|
|
|
static void check_duplicate_label_node(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct label *l;
|
|
struct property *prop;
|
|
|
|
for_each_label(node->labels, l)
|
|
check_duplicate_label(c, dti, l->label, node, NULL, NULL);
|
|
|
|
for_each_property(node, prop) {
|
|
struct marker *m = prop->val.markers;
|
|
|
|
for_each_label(prop->labels, l)
|
|
check_duplicate_label(c, dti, l->label, node, prop, NULL);
|
|
|
|
for_each_marker_of_type(m, LABEL)
|
|
check_duplicate_label(c, dti, m->ref, node, prop, m);
|
|
}
|
|
}
|
|
ERROR(duplicate_label, check_duplicate_label_node, NULL);
|
|
|
|
static cell_t check_phandle_prop(struct check *c, struct dt_info *dti,
|
|
struct node *node, const char *propname)
|
|
{
|
|
struct node *root = dti->dt;
|
|
struct property *prop;
|
|
struct marker *m;
|
|
cell_t phandle;
|
|
|
|
prop = get_property(node, propname);
|
|
if (!prop)
|
|
return 0;
|
|
|
|
if (prop->val.len != sizeof(cell_t)) {
|
|
FAIL(c, dti, "%s has bad length (%d) %s property",
|
|
node->fullpath, prop->val.len, prop->name);
|
|
return 0;
|
|
}
|
|
|
|
m = prop->val.markers;
|
|
for_each_marker_of_type(m, REF_PHANDLE) {
|
|
assert(m->offset == 0);
|
|
if (node != get_node_by_ref(root, m->ref))
|
|
/* "Set this node's phandle equal to some
|
|
* other node's phandle". That's nonsensical
|
|
* by construction. */ {
|
|
FAIL(c, dti, "%s in %s is a reference to another node",
|
|
prop->name, node->fullpath);
|
|
}
|
|
/* But setting this node's phandle equal to its own
|
|
* phandle is allowed - that means allocate a unique
|
|
* phandle for this node, even if it's not otherwise
|
|
* referenced. The value will be filled in later, so
|
|
* we treat it as having no phandle data for now. */
|
|
return 0;
|
|
}
|
|
|
|
phandle = propval_cell(prop);
|
|
|
|
if ((phandle == 0) || (phandle == -1)) {
|
|
FAIL(c, dti, "%s has bad value (0x%x) in %s property",
|
|
node->fullpath, phandle, prop->name);
|
|
return 0;
|
|
}
|
|
|
|
return phandle;
|
|
}
|
|
|
|
static void check_explicit_phandles(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct node *root = dti->dt;
|
|
struct node *other;
|
|
cell_t phandle, linux_phandle;
|
|
|
|
/* Nothing should have assigned phandles yet */
|
|
assert(!node->phandle);
|
|
|
|
phandle = check_phandle_prop(c, dti, node, "phandle");
|
|
|
|
linux_phandle = check_phandle_prop(c, dti, node, "linux,phandle");
|
|
|
|
if (!phandle && !linux_phandle)
|
|
/* No valid phandles; nothing further to check */
|
|
return;
|
|
|
|
if (linux_phandle && phandle && (phandle != linux_phandle))
|
|
FAIL(c, dti, "%s has mismatching 'phandle' and 'linux,phandle'"
|
|
" properties", node->fullpath);
|
|
|
|
if (linux_phandle && !phandle)
|
|
phandle = linux_phandle;
|
|
|
|
other = get_node_by_phandle(root, phandle);
|
|
if (other && (other != node)) {
|
|
FAIL(c, dti, "%s has duplicated phandle 0x%x (seen before at %s)",
|
|
node->fullpath, phandle, other->fullpath);
|
|
return;
|
|
}
|
|
|
|
node->phandle = phandle;
|
|
}
|
|
ERROR(explicit_phandles, check_explicit_phandles, NULL);
|
|
|
|
static void check_name_properties(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property **pp, *prop = NULL;
|
|
|
|
for (pp = &node->proplist; *pp; pp = &((*pp)->next))
|
|
if (streq((*pp)->name, "name")) {
|
|
prop = *pp;
|
|
break;
|
|
}
|
|
|
|
if (!prop)
|
|
return; /* No name property, that's fine */
|
|
|
|
if ((prop->val.len != node->basenamelen+1)
|
|
|| (memcmp(prop->val.val, node->name, node->basenamelen) != 0)) {
|
|
FAIL(c, dti, "\"name\" property in %s is incorrect (\"%s\" instead"
|
|
" of base node name)", node->fullpath, prop->val.val);
|
|
} else {
|
|
/* The name property is correct, and therefore redundant.
|
|
* Delete it */
|
|
*pp = prop->next;
|
|
free(prop->name);
|
|
data_free(prop->val);
|
|
free(prop);
|
|
}
|
|
}
|
|
ERROR_IF_NOT_STRING(name_is_string, "name");
|
|
ERROR(name_properties, check_name_properties, NULL, &name_is_string);
|
|
|
|
/*
|
|
* Reference fixup functions
|
|
*/
|
|
|
|
static void fixup_phandle_references(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct node *dt = dti->dt;
|
|
struct property *prop;
|
|
|
|
for_each_property(node, prop) {
|
|
struct marker *m = prop->val.markers;
|
|
struct node *refnode;
|
|
cell_t phandle;
|
|
|
|
for_each_marker_of_type(m, REF_PHANDLE) {
|
|
assert(m->offset + sizeof(cell_t) <= prop->val.len);
|
|
|
|
refnode = get_node_by_ref(dt, m->ref);
|
|
if (! refnode) {
|
|
if (!(dti->dtsflags & DTSF_PLUGIN))
|
|
FAIL(c, dti, "Reference to non-existent node or "
|
|
"label \"%s\"\n", m->ref);
|
|
else /* mark the entry as unresolved */
|
|
*((fdt32_t *)(prop->val.val + m->offset)) =
|
|
cpu_to_fdt32(0xffffffff);
|
|
continue;
|
|
}
|
|
|
|
phandle = get_node_phandle(dt, refnode);
|
|
*((fdt32_t *)(prop->val.val + m->offset)) = cpu_to_fdt32(phandle);
|
|
}
|
|
}
|
|
}
|
|
ERROR(phandle_references, fixup_phandle_references, NULL,
|
|
&duplicate_node_names, &explicit_phandles);
|
|
|
|
static void fixup_path_references(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct node *dt = dti->dt;
|
|
struct property *prop;
|
|
|
|
for_each_property(node, prop) {
|
|
struct marker *m = prop->val.markers;
|
|
struct node *refnode;
|
|
char *path;
|
|
|
|
for_each_marker_of_type(m, REF_PATH) {
|
|
assert(m->offset <= prop->val.len);
|
|
|
|
refnode = get_node_by_ref(dt, m->ref);
|
|
if (!refnode) {
|
|
FAIL(c, dti, "Reference to non-existent node or label \"%s\"\n",
|
|
m->ref);
|
|
continue;
|
|
}
|
|
|
|
path = refnode->fullpath;
|
|
prop->val = data_insert_at_marker(prop->val, m, path,
|
|
strlen(path) + 1);
|
|
}
|
|
}
|
|
}
|
|
ERROR(path_references, fixup_path_references, NULL, &duplicate_node_names);
|
|
|
|
/*
|
|
* Semantic checks
|
|
*/
|
|
WARNING_IF_NOT_CELL(address_cells_is_cell, "#address-cells");
|
|
WARNING_IF_NOT_CELL(size_cells_is_cell, "#size-cells");
|
|
WARNING_IF_NOT_CELL(interrupt_cells_is_cell, "#interrupt-cells");
|
|
|
|
WARNING_IF_NOT_STRING(device_type_is_string, "device_type");
|
|
WARNING_IF_NOT_STRING(model_is_string, "model");
|
|
WARNING_IF_NOT_STRING(status_is_string, "status");
|
|
|
|
static void fixup_addr_size_cells(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property *prop;
|
|
|
|
node->addr_cells = -1;
|
|
node->size_cells = -1;
|
|
|
|
prop = get_property(node, "#address-cells");
|
|
if (prop)
|
|
node->addr_cells = propval_cell(prop);
|
|
|
|
prop = get_property(node, "#size-cells");
|
|
if (prop)
|
|
node->size_cells = propval_cell(prop);
|
|
}
|
|
WARNING(addr_size_cells, fixup_addr_size_cells, NULL,
|
|
&address_cells_is_cell, &size_cells_is_cell);
|
|
|
|
#define node_addr_cells(n) \
|
|
(((n)->addr_cells == -1) ? 2 : (n)->addr_cells)
|
|
#define node_size_cells(n) \
|
|
(((n)->size_cells == -1) ? 1 : (n)->size_cells)
|
|
|
|
static void check_reg_format(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property *prop;
|
|
int addr_cells, size_cells, entrylen;
|
|
|
|
prop = get_property(node, "reg");
|
|
if (!prop)
|
|
return; /* No "reg", that's fine */
|
|
|
|
if (!node->parent) {
|
|
FAIL(c, dti, "Root node has a \"reg\" property");
|
|
return;
|
|
}
|
|
|
|
if (prop->val.len == 0)
|
|
FAIL(c, dti, "\"reg\" property in %s is empty", node->fullpath);
|
|
|
|
addr_cells = node_addr_cells(node->parent);
|
|
size_cells = node_size_cells(node->parent);
|
|
entrylen = (addr_cells + size_cells) * sizeof(cell_t);
|
|
|
|
if (!entrylen || (prop->val.len % entrylen) != 0)
|
|
FAIL(c, dti, "\"reg\" property in %s has invalid length (%d bytes) "
|
|
"(#address-cells == %d, #size-cells == %d)",
|
|
node->fullpath, prop->val.len, addr_cells, size_cells);
|
|
}
|
|
WARNING(reg_format, check_reg_format, NULL, &addr_size_cells);
|
|
|
|
static void check_ranges_format(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property *prop;
|
|
int c_addr_cells, p_addr_cells, c_size_cells, p_size_cells, entrylen;
|
|
|
|
prop = get_property(node, "ranges");
|
|
if (!prop)
|
|
return;
|
|
|
|
if (!node->parent) {
|
|
FAIL(c, dti, "Root node has a \"ranges\" property");
|
|
return;
|
|
}
|
|
|
|
p_addr_cells = node_addr_cells(node->parent);
|
|
p_size_cells = node_size_cells(node->parent);
|
|
c_addr_cells = node_addr_cells(node);
|
|
c_size_cells = node_size_cells(node);
|
|
entrylen = (p_addr_cells + c_addr_cells + c_size_cells) * sizeof(cell_t);
|
|
|
|
if (prop->val.len == 0) {
|
|
if (p_addr_cells != c_addr_cells)
|
|
FAIL(c, dti, "%s has empty \"ranges\" property but its "
|
|
"#address-cells (%d) differs from %s (%d)",
|
|
node->fullpath, c_addr_cells, node->parent->fullpath,
|
|
p_addr_cells);
|
|
if (p_size_cells != c_size_cells)
|
|
FAIL(c, dti, "%s has empty \"ranges\" property but its "
|
|
"#size-cells (%d) differs from %s (%d)",
|
|
node->fullpath, c_size_cells, node->parent->fullpath,
|
|
p_size_cells);
|
|
} else if ((prop->val.len % entrylen) != 0) {
|
|
FAIL(c, dti, "\"ranges\" property in %s has invalid length (%d bytes) "
|
|
"(parent #address-cells == %d, child #address-cells == %d, "
|
|
"#size-cells == %d)", node->fullpath, prop->val.len,
|
|
p_addr_cells, c_addr_cells, c_size_cells);
|
|
}
|
|
}
|
|
WARNING(ranges_format, check_ranges_format, NULL, &addr_size_cells);
|
|
|
|
static const struct bus_type pci_bus = {
|
|
.name = "PCI",
|
|
};
|
|
|
|
static void check_pci_bridge(struct check *c, struct dt_info *dti, struct node *node)
|
|
{
|
|
struct property *prop;
|
|
cell_t *cells;
|
|
|
|
prop = get_property(node, "device_type");
|
|
if (!prop || !streq(prop->val.val, "pci"))
|
|
return;
|
|
|
|
node->bus = &pci_bus;
|
|
|
|
if (!strneq(node->name, "pci", node->basenamelen) &&
|
|
!strneq(node->name, "pcie", node->basenamelen))
|
|
FAIL(c, dti, "Node %s node name is not \"pci\" or \"pcie\"",
|
|
node->fullpath);
|
|
|
|
prop = get_property(node, "ranges");
|
|
if (!prop)
|
|
FAIL(c, dti, "Node %s missing ranges for PCI bridge (or not a bridge)",
|
|
node->fullpath);
|
|
|
|
if (node_addr_cells(node) != 3)
|
|
FAIL(c, dti, "Node %s incorrect #address-cells for PCI bridge",
|
|
node->fullpath);
|
|
if (node_size_cells(node) != 2)
|
|
FAIL(c, dti, "Node %s incorrect #size-cells for PCI bridge",
|
|
node->fullpath);
|
|
|
|
prop = get_property(node, "bus-range");
|
|
if (!prop) {
|
|
FAIL(c, dti, "Node %s missing bus-range for PCI bridge",
|
|
node->fullpath);
|
|
return;
|
|
}
|
|
if (prop->val.len != (sizeof(cell_t) * 2)) {
|
|
FAIL(c, dti, "Node %s bus-range must be 2 cells",
|
|
node->fullpath);
|
|
return;
|
|
}
|
|
cells = (cell_t *)prop->val.val;
|
|
if (fdt32_to_cpu(cells[0]) > fdt32_to_cpu(cells[1]))
|
|
FAIL(c, dti, "Node %s bus-range 1st cell must be less than or equal to 2nd cell",
|
|
node->fullpath);
|
|
if (fdt32_to_cpu(cells[1]) > 0xff)
|
|
FAIL(c, dti, "Node %s bus-range maximum bus number must be less than 256",
|
|
node->fullpath);
|
|
}
|
|
WARNING(pci_bridge, check_pci_bridge, NULL,
|
|
&device_type_is_string, &addr_size_cells);
|
|
|
|
static void check_pci_device_bus_num(struct check *c, struct dt_info *dti, struct node *node)
|
|
{
|
|
struct property *prop;
|
|
unsigned int bus_num, min_bus, max_bus;
|
|
cell_t *cells;
|
|
|
|
if (!node->parent || (node->parent->bus != &pci_bus))
|
|
return;
|
|
|
|
prop = get_property(node, "reg");
|
|
if (!prop)
|
|
return;
|
|
|
|
cells = (cell_t *)prop->val.val;
|
|
bus_num = (fdt32_to_cpu(cells[0]) & 0x00ff0000) >> 16;
|
|
|
|
prop = get_property(node->parent, "bus-range");
|
|
if (!prop) {
|
|
min_bus = max_bus = 0;
|
|
} else {
|
|
cells = (cell_t *)prop->val.val;
|
|
min_bus = fdt32_to_cpu(cells[0]);
|
|
max_bus = fdt32_to_cpu(cells[0]);
|
|
}
|
|
if ((bus_num < min_bus) || (bus_num > max_bus))
|
|
FAIL(c, dti, "Node %s PCI bus number %d out of range, expected (%d - %d)",
|
|
node->fullpath, bus_num, min_bus, max_bus);
|
|
}
|
|
WARNING(pci_device_bus_num, check_pci_device_bus_num, NULL, ®_format, &pci_bridge);
|
|
|
|
static void check_pci_device_reg(struct check *c, struct dt_info *dti, struct node *node)
|
|
{
|
|
struct property *prop;
|
|
const char *unitname = get_unitname(node);
|
|
char unit_addr[5];
|
|
unsigned int dev, func, reg;
|
|
cell_t *cells;
|
|
|
|
if (!node->parent || (node->parent->bus != &pci_bus))
|
|
return;
|
|
|
|
prop = get_property(node, "reg");
|
|
if (!prop) {
|
|
FAIL(c, dti, "Node %s missing PCI reg property", node->fullpath);
|
|
return;
|
|
}
|
|
|
|
cells = (cell_t *)prop->val.val;
|
|
if (cells[1] || cells[2])
|
|
FAIL(c, dti, "Node %s PCI reg config space address cells 2 and 3 must be 0",
|
|
node->fullpath);
|
|
|
|
reg = fdt32_to_cpu(cells[0]);
|
|
dev = (reg & 0xf800) >> 11;
|
|
func = (reg & 0x700) >> 8;
|
|
|
|
if (reg & 0xff000000)
|
|
FAIL(c, dti, "Node %s PCI reg address is not configuration space",
|
|
node->fullpath);
|
|
if (reg & 0x000000ff)
|
|
FAIL(c, dti, "Node %s PCI reg config space address register number must be 0",
|
|
node->fullpath);
|
|
|
|
if (func == 0) {
|
|
snprintf(unit_addr, sizeof(unit_addr), "%x", dev);
|
|
if (streq(unitname, unit_addr))
|
|
return;
|
|
}
|
|
|
|
snprintf(unit_addr, sizeof(unit_addr), "%x,%x", dev, func);
|
|
if (streq(unitname, unit_addr))
|
|
return;
|
|
|
|
FAIL(c, dti, "Node %s PCI unit address format error, expected \"%s\"",
|
|
node->fullpath, unit_addr);
|
|
}
|
|
WARNING(pci_device_reg, check_pci_device_reg, NULL, ®_format, &pci_bridge);
|
|
|
|
static const struct bus_type simple_bus = {
|
|
.name = "simple-bus",
|
|
};
|
|
|
|
static bool node_is_compatible(struct node *node, const char *compat)
|
|
{
|
|
struct property *prop;
|
|
const char *str, *end;
|
|
|
|
prop = get_property(node, "compatible");
|
|
if (!prop)
|
|
return false;
|
|
|
|
for (str = prop->val.val, end = str + prop->val.len; str < end;
|
|
str += strnlen(str, end - str) + 1) {
|
|
if (strneq(str, compat, end - str))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void check_simple_bus_bridge(struct check *c, struct dt_info *dti, struct node *node)
|
|
{
|
|
if (node_is_compatible(node, "simple-bus"))
|
|
node->bus = &simple_bus;
|
|
}
|
|
WARNING(simple_bus_bridge, check_simple_bus_bridge, NULL, &addr_size_cells);
|
|
|
|
static void check_simple_bus_reg(struct check *c, struct dt_info *dti, struct node *node)
|
|
{
|
|
struct property *prop;
|
|
const char *unitname = get_unitname(node);
|
|
char unit_addr[17];
|
|
unsigned int size;
|
|
uint64_t reg = 0;
|
|
cell_t *cells = NULL;
|
|
|
|
if (!node->parent || (node->parent->bus != &simple_bus))
|
|
return;
|
|
|
|
prop = get_property(node, "reg");
|
|
if (prop)
|
|
cells = (cell_t *)prop->val.val;
|
|
else {
|
|
prop = get_property(node, "ranges");
|
|
if (prop && prop->val.len)
|
|
/* skip of child address */
|
|
cells = ((cell_t *)prop->val.val) + node_addr_cells(node);
|
|
}
|
|
|
|
if (!cells) {
|
|
if (node->parent->parent && !(node->bus == &simple_bus))
|
|
FAIL(c, dti, "Node %s missing or empty reg/ranges property", node->fullpath);
|
|
return;
|
|
}
|
|
|
|
size = node_addr_cells(node->parent);
|
|
while (size--)
|
|
reg = (reg << 32) | fdt32_to_cpu(*(cells++));
|
|
|
|
snprintf(unit_addr, sizeof(unit_addr), "%zx", reg);
|
|
if (!streq(unitname, unit_addr))
|
|
FAIL(c, dti, "Node %s simple-bus unit address format error, expected \"%s\"",
|
|
node->fullpath, unit_addr);
|
|
}
|
|
WARNING(simple_bus_reg, check_simple_bus_reg, NULL, ®_format, &simple_bus_bridge);
|
|
|
|
static void check_unit_address_format(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
const char *unitname = get_unitname(node);
|
|
|
|
if (node->parent && node->parent->bus)
|
|
return;
|
|
|
|
if (!unitname[0])
|
|
return;
|
|
|
|
if (!strncmp(unitname, "0x", 2)) {
|
|
FAIL(c, dti, "Node %s unit name should not have leading \"0x\"",
|
|
node->fullpath);
|
|
/* skip over 0x for next test */
|
|
unitname += 2;
|
|
}
|
|
if (unitname[0] == '0' && isxdigit(unitname[1]))
|
|
FAIL(c, dti, "Node %s unit name should not have leading 0s",
|
|
node->fullpath);
|
|
}
|
|
WARNING(unit_address_format, check_unit_address_format, NULL,
|
|
&node_name_format, &pci_bridge, &simple_bus_bridge);
|
|
|
|
/*
|
|
* Style checks
|
|
*/
|
|
static void check_avoid_default_addr_size(struct check *c, struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct property *reg, *ranges;
|
|
|
|
if (!node->parent)
|
|
return; /* Ignore root node */
|
|
|
|
reg = get_property(node, "reg");
|
|
ranges = get_property(node, "ranges");
|
|
|
|
if (!reg && !ranges)
|
|
return;
|
|
|
|
if (node->parent->addr_cells == -1)
|
|
FAIL(c, dti, "Relying on default #address-cells value for %s",
|
|
node->fullpath);
|
|
|
|
if (node->parent->size_cells == -1)
|
|
FAIL(c, dti, "Relying on default #size-cells value for %s",
|
|
node->fullpath);
|
|
}
|
|
WARNING(avoid_default_addr_size, check_avoid_default_addr_size, NULL,
|
|
&addr_size_cells);
|
|
|
|
static void check_obsolete_chosen_interrupt_controller(struct check *c,
|
|
struct dt_info *dti,
|
|
struct node *node)
|
|
{
|
|
struct node *dt = dti->dt;
|
|
struct node *chosen;
|
|
struct property *prop;
|
|
|
|
if (node != dt)
|
|
return;
|
|
|
|
|
|
chosen = get_node_by_path(dt, "/chosen");
|
|
if (!chosen)
|
|
return;
|
|
|
|
prop = get_property(chosen, "interrupt-controller");
|
|
if (prop)
|
|
FAIL(c, dti, "/chosen has obsolete \"interrupt-controller\" "
|
|
"property");
|
|
}
|
|
WARNING(obsolete_chosen_interrupt_controller,
|
|
check_obsolete_chosen_interrupt_controller, NULL);
|
|
|
|
static struct check *check_table[] = {
|
|
&duplicate_node_names, &duplicate_property_names,
|
|
&node_name_chars, &node_name_format, &property_name_chars,
|
|
&name_is_string, &name_properties,
|
|
|
|
&duplicate_label,
|
|
|
|
&explicit_phandles,
|
|
&phandle_references, &path_references,
|
|
|
|
&address_cells_is_cell, &size_cells_is_cell, &interrupt_cells_is_cell,
|
|
&device_type_is_string, &model_is_string, &status_is_string,
|
|
|
|
&property_name_chars_strict,
|
|
&node_name_chars_strict,
|
|
|
|
&addr_size_cells, ®_format, &ranges_format,
|
|
|
|
&unit_address_vs_reg,
|
|
&unit_address_format,
|
|
|
|
&pci_bridge,
|
|
&pci_device_reg,
|
|
&pci_device_bus_num,
|
|
|
|
&simple_bus_bridge,
|
|
&simple_bus_reg,
|
|
|
|
&avoid_default_addr_size,
|
|
&obsolete_chosen_interrupt_controller,
|
|
|
|
&always_fail,
|
|
};
|
|
|
|
static void enable_warning_error(struct check *c, bool warn, bool error)
|
|
{
|
|
int i;
|
|
|
|
/* Raising level, also raise it for prereqs */
|
|
if ((warn && !c->warn) || (error && !c->error))
|
|
for (i = 0; i < c->num_prereqs; i++)
|
|
enable_warning_error(c->prereq[i], warn, error);
|
|
|
|
c->warn = c->warn || warn;
|
|
c->error = c->error || error;
|
|
}
|
|
|
|
static void disable_warning_error(struct check *c, bool warn, bool error)
|
|
{
|
|
int i;
|
|
|
|
/* Lowering level, also lower it for things this is the prereq
|
|
* for */
|
|
if ((warn && c->warn) || (error && c->error)) {
|
|
for (i = 0; i < ARRAY_SIZE(check_table); i++) {
|
|
struct check *cc = check_table[i];
|
|
int j;
|
|
|
|
for (j = 0; j < cc->num_prereqs; j++)
|
|
if (cc->prereq[j] == c)
|
|
disable_warning_error(cc, warn, error);
|
|
}
|
|
}
|
|
|
|
c->warn = c->warn && !warn;
|
|
c->error = c->error && !error;
|
|
}
|
|
|
|
void parse_checks_option(bool warn, bool error, const char *arg)
|
|
{
|
|
int i;
|
|
const char *name = arg;
|
|
bool enable = true;
|
|
|
|
if ((strncmp(arg, "no-", 3) == 0)
|
|
|| (strncmp(arg, "no_", 3) == 0)) {
|
|
name = arg + 3;
|
|
enable = false;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(check_table); i++) {
|
|
struct check *c = check_table[i];
|
|
|
|
if (streq(c->name, name)) {
|
|
if (enable)
|
|
enable_warning_error(c, warn, error);
|
|
else
|
|
disable_warning_error(c, warn, error);
|
|
return;
|
|
}
|
|
}
|
|
|
|
die("Unrecognized check name \"%s\"\n", name);
|
|
}
|
|
|
|
void process_checks(bool force, struct dt_info *dti)
|
|
{
|
|
int i;
|
|
int error = 0;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(check_table); i++) {
|
|
struct check *c = check_table[i];
|
|
|
|
if (c->warn || c->error)
|
|
error = error || run_check(c, dti);
|
|
}
|
|
|
|
if (error) {
|
|
if (!force) {
|
|
fprintf(stderr, "ERROR: Input tree has errors, aborting "
|
|
"(use -f to force output)\n");
|
|
exit(2);
|
|
} else if (quiet < 3) {
|
|
fprintf(stderr, "Warning: Input tree has errors, "
|
|
"output forced\n");
|
|
}
|
|
}
|
|
}
|