Skip to content

L
linux

xiphi1978 / linux

通知 2
Star 0
Fork 0
L
linux

体验新版 GitCode，发现更多精彩内容 >>

提交 87b385da 编写于 作者: D David S. Miller
浏览文件
操作

[SPARC]: Add unique device_node IDs and a ".node" property. 

Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 fb7cd9d9
隐藏空白更改
内联 并排
Showing with 75 addition and 36 deletion
arch/sparc/kernel/prom.c
浏览文件 @ 87b385da
...@@ -407,7 +407,9 @@ static char * __init build_full_name(struct device_node *dp) ...@@ -407,7 +407,9 @@ static char * __init build_full_name(struct device_node *dp)
return n; return n;
} }
static struct property * __init build_one_prop(phandle node, char *prev) static unsigned int unique_id;
static struct property * __init build_one_prop(phandle node, char *prev, char *special_name, void *special_val, int special_len)
{ {
static struct property *tmp = NULL; static struct property *tmp = NULL;
struct property *p; struct property *p;
...@@ -417,25 +419,34 @@ static struct property * __init build_one_prop(phandle node, char *prev) ...@@ -417,25 +419,34 @@ static struct property * __init build_one_prop(phandle node, char *prev)
p = tmp; p = tmp;
memset(p, 0, sizeof(*p) + 32); memset(p, 0, sizeof(*p) + 32);
tmp = NULL; tmp = NULL;
} else } else {
p = prom_early_alloc(sizeof(struct property) + 32); p = prom_early_alloc(sizeof(struct property) + 32);
p->unique_id = unique_id++;
}
p->name = (char *) (p + 1); p->name = (char *) (p + 1);
if (prev == NULL) { if (special_name) {
prom_firstprop(node, p->name); p->length = special_len;
p->value = prom_early_alloc(special_len);
memcpy(p->value, special_val, special_len);
} else { } else {
prom_nextprop(node, prev, p->name); if (prev == NULL) {
} prom_firstprop(node, p->name);
if (strlen(p->name) == 0) { } else {
tmp = p; prom_nextprop(node, prev, p->name);
return NULL; }
} if (strlen(p->name) == 0) {
p->length = prom_getproplen(node, p->name); tmp = p;
if (p->length <= 0) { return NULL;
p->length = 0; }
} else { p->length = prom_getproplen(node, p->name);
p->value = prom_early_alloc(p->length); if (p->length <= 0) {
len = prom_getproperty(node, p->name, p->value, p->length); p->length = 0;
} else {
p->value = prom_early_alloc(p->length + 1);
prom_getproperty(node, p->name, p->value, p->length);
((unsigned char *)p->value)[p->length] = '\0';
}
} }
return p; return p;
} }
...@@ -444,9 +455,14 @@ static struct property * __init build_prop_list(phandle node) ...@@ -444,9 +455,14 @@ static struct property * __init build_prop_list(phandle node)
{ {
struct property *head, *tail; struct property *head, *tail;
head = tail = build_one_prop(node, NULL); head = tail = build_one_prop(node, NULL,
".node", &node, sizeof(node));
tail->next = build_one_prop(node, NULL, NULL, NULL, 0);
tail = tail->next;
while(tail) { while(tail) {
tail->next = build_one_prop(node, tail->name); tail->next = build_one_prop(node, tail->name,
NULL, NULL, 0);
tail = tail->next; tail = tail->next;
} }
...@@ -475,6 +491,7 @@ static struct device_node * __init create_node(phandle node) ...@@ -475,6 +491,7 @@ static struct device_node * __init create_node(phandle node)
return NULL; return NULL;
dp = prom_early_alloc(sizeof(*dp)); dp = prom_early_alloc(sizeof(*dp));
dp->unique_id = unique_id++;
kref_init(&dp->kref); kref_init(&dp->kref);
......
arch/sparc64/kernel/prom.c
浏览文件 @ 87b385da
...@@ -584,7 +584,9 @@ static char * __init build_full_name(struct device_node *dp) ...@@ -584,7 +584,9 @@ static char * __init build_full_name(struct device_node *dp)
return n; return n;
} }
static struct property * __init build_one_prop(phandle node, char *prev) static unsigned int unique_id;
static struct property * __init build_one_prop(phandle node, char *prev, char *special_name, void *special_val, int special_len)
{ {
static struct property *tmp = NULL; static struct property *tmp = NULL;
struct property *p; struct property *p;
...@@ -593,25 +595,35 @@ static struct property * __init build_one_prop(phandle node, char *prev) ...@@ -593,25 +595,35 @@ static struct property * __init build_one_prop(phandle node, char *prev)
p = tmp; p = tmp;
memset(p, 0, sizeof(*p) + 32); memset(p, 0, sizeof(*p) + 32);
tmp = NULL; tmp = NULL;
} else } else {
p = prom_early_alloc(sizeof(struct property) + 32); p = prom_early_alloc(sizeof(struct property) + 32);
p->unique_id = unique_id++;
}
p->name = (char *) (p + 1); p->name = (char *) (p + 1);
if (prev == NULL) { if (special_name) {
prom_firstprop(node, p->name); strcpy(p->name, special_name);
p->length = special_len;
p->value = prom_early_alloc(special_len);
memcpy(p->value, special_val, special_len);
} else { } else {
prom_nextprop(node, prev, p->name); if (prev == NULL) {
} prom_firstprop(node, p->name);
if (strlen(p->name) == 0) { } else {
tmp = p; prom_nextprop(node, prev, p->name);
return NULL; }
} if (strlen(p->name) == 0) {
p->length = prom_getproplen(node, p->name); tmp = p;
if (p->length <= 0) { return NULL;
p->length = 0; }
} else { p->length = prom_getproplen(node, p->name);
p->value = prom_early_alloc(p->length); if (p->length <= 0) {
prom_getproperty(node, p->name, p->value, p->length); p->length = 0;
} else {
p->value = prom_early_alloc(p->length + 1);
prom_getproperty(node, p->name, p->value, p->length);
((unsigned char *)p->value)[p->length] = '\0';
}
} }
return p; return p;
} }
...@@ -620,9 +632,14 @@ static struct property * __init build_prop_list(phandle node) ...@@ -620,9 +632,14 @@ static struct property * __init build_prop_list(phandle node)
{ {
struct property *head, *tail; struct property *head, *tail;
head = tail = build_one_prop(node, NULL); head = tail = build_one_prop(node, NULL,
".node", &node, sizeof(node));
tail->next = build_one_prop(node, NULL, NULL, NULL, 0);
tail = tail->next;
while(tail) { while(tail) {
tail->next = build_one_prop(node, tail->name); tail->next = build_one_prop(node, tail->name,
NULL, NULL, 0);
tail = tail->next; tail = tail->next;
} }
...@@ -651,6 +668,7 @@ static struct device_node * __init create_node(phandle node) ...@@ -651,6 +668,7 @@ static struct device_node * __init create_node(phandle node)
return NULL; return NULL;
dp = prom_early_alloc(sizeof(*dp)); dp = prom_early_alloc(sizeof(*dp));
dp->unique_id = unique_id++;
kref_init(&dp->kref); kref_init(&dp->kref);
......
include/asm-sparc/prom.h
浏览文件 @ 87b385da
...@@ -36,6 +36,7 @@ struct property { ...@@ -36,6 +36,7 @@ struct property {
void *value; void *value;
struct property *next; struct property *next;
unsigned long _flags; unsigned long _flags;
unsigned int unique_id;
}; };
struct device_node { struct device_node {
...@@ -59,6 +60,7 @@ struct device_node { ...@@ -59,6 +60,7 @@ struct device_node {
struct kref kref; struct kref kref;
unsigned long _flags; unsigned long _flags;
void *data; void *data;
unsigned int unique_id;
}; };
/* flag descriptions */ /* flag descriptions */
......
include/asm-sparc64/prom.h
浏览文件 @ 87b385da
...@@ -36,6 +36,7 @@ struct property { ...@@ -36,6 +36,7 @@ struct property {
void *value; void *value;
struct property *next; struct property *next;
unsigned long _flags; unsigned long _flags;
unsigned int unique_id;
}; };
struct device_node { struct device_node {
...@@ -59,6 +60,7 @@ struct device_node { ...@@ -59,6 +60,7 @@ struct device_node {
struct kref kref; struct kref kref;
unsigned long _flags; unsigned long _flags;
void *data; void *data;
unsigned int unique_id;
}; };
/* flag descriptions */ /* flag descriptions */
......
Markdown is supported
0% 或 .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑！
想要评论请 注册 或