#include <linux/types.h>
#include <linux/slab.h>
+#include <asm/atomic.h>
#define CSR1212_MALLOC(size) kmalloc((size), GFP_KERNEL)
#define CSR1212_FREE(ptr) kfree(ptr)
struct csr1212_directory directory;
} value;
struct csr1212_keyval *associate;
- int refcnt;
+ atomic_t refcnt;
/* used in generating and/or parsing CSR image */
struct csr1212_keyval *next, *prev; /* flat list of CSR elements */
struct csr1212_csr {
size_t bus_info_len; /* bus info block length in bytes */
size_t crc_len; /* crc length in bytes */
- u32 *bus_info_data; /* bus info data incl bus name and EUI */
+ __be32 *bus_info_data; /* bus info data incl bus name and EUI */
void *private; /* private, bus specific data */
struct csr1212_bus_ops *ops;
* entries located in the Units Space. Must return 0 on success
* anything else indicates an error. */
int (*bus_read) (struct csr1212_csr *csr, u64 addr,
- u16 length, void *buffer, void *private);
+ void *buffer, void *private);
/* This function is used by csr1212 to allocate a region in units space
* in the event that Config ROM entries don't all fit in the predefined
/* This function is used by csr1212 to release a region in units space
* that is no longer needed. */
void (*release_addr) (u64 addr, void *private);
-
- /* This function is used by csr1212 to determine the max read request
- * supported by a remote node when reading the ConfigROM space. Must
- * return 0, 1, or 2 per IEEE 1212. */
- int (*get_max_rom) (u32 *bus_info, void *private);
};
#define CSR1212_DESCRIPTOR_LEAF_OVERHEAD (1 * sizeof(u32))
#define CSR1212_DESCRIPTOR_LEAF_TYPE(kv) \
- (be32_to_cpu((kv)->value.leaf.data[0]) >> CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT)
+ (be32_to_cpu((kv)->value.leaf.data[0]) >> \
+ CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT)
#define CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID(kv) \
(be32_to_cpu((kv)->value.leaf.data[0]) & \
CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK)
* need for code to retain a keyval that has been parsed. */
static inline void csr1212_keep_keyval(struct csr1212_keyval *kv)
{
- kv->refcnt++;
+ atomic_inc(&kv->refcnt);
+ smp_mb__after_atomic_inc();
}
* This macro allows for looping over the keyval entries in a directory and it
* ensures that keyvals from remote ConfigROMs are parsed properly.
*
- * _csr is a struct csr1212_csr * that points to CSR associated with dir.
- * _kv is a struct csr1212_keyval * that'll point to the current keyval (loop index).
- * _dir is a struct csr1212_keyval * that points to the directory to be looped.
- * _pos is a struct csr1212_dentry * that is used internally for indexing.
+ * struct csr1212_csr *_csr points to the CSR associated with dir.
+ * struct csr1212_keyval *_kv points to the current keyval (loop index).
+ * struct csr1212_keyval *_dir points to the directory to be looped.
+ * struct csr1212_dentry *_pos is used internally for indexing.
*
* kv will be NULL upon exit of the loop.
*/
-#define csr1212_for_each_dir_entry(_csr, _kv, _dir, _pos) \
- for (csr1212_get_keyval((_csr), (_dir)), \
- _pos = (_dir)->value.directory.dentries_head, \
- _kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : NULL; \
- (_kv) && (_pos); \
- (_kv->associate == NULL) ? \
- ((_pos = _pos->next), \
- (_kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : \
- NULL)) : \
+#define csr1212_for_each_dir_entry(_csr, _kv, _dir, _pos) \
+ for (csr1212_get_keyval((_csr), (_dir)), \
+ _pos = (_dir)->value.directory.dentries_head, \
+ _kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : NULL;\
+ (_kv) && (_pos); \
+ (_kv->associate == NULL) ? \
+ ((_pos = _pos->next), (_kv = (_pos) ? \
+ csr1212_get_keyval((_csr), _pos->kv) : \
+ NULL)) : \
(_kv = csr1212_get_keyval((_csr), _kv->associate)))
-
-
#endif /* __CSR1212_H__ */