litmus-rt.git - The LITMUS^RT kernel.

The LITMUS^RT kernel.

Bjoern Brandenburg

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author	David S. Miller <davem@davemloft.net>	2008-08-27 05:48:26 -0400
committer	David S. Miller <davem@davemloft.net>	2008-08-29 05:15:09 -0400
commit	f1b6aa87b7eb8573d04f8cb21574fe565e86a380 (patch)
tree	80acd35ac15026a53b609cf0ec9239a1f575aa85 /arch/sparc64
parent	7e7e2f035663c5ceb029bfb9d91e75099b0a5625 (diff)

sparc32: Convert pmc to OF driver.

Signed-off-by: David S. Miller <davem@davemloft.net>

Diffstat (limited to 'arch/sparc64')

0 files changed, 0 insertions, 0 deletions

*init)(const void *, unsigned int, gfp_t, int); unsigned int (*find)(struct ts_config *, struct ts_state *); void (*destroy)(struct ts_config *); void * (*get_pattern)(struct ts_config *); unsigned int (*get_pattern_len)(struct ts_config *); struct module *owner; struct list_head list; }; /** * struct ts_config - search configuration * @ops: operations of chosen algorithm * @flags: flags * @get_next_block: callback to fetch the next block to search in * @finish: callback to finalize a search */ struct ts_config { struct ts_ops *ops; int flags; /** * get_next_block - fetch next block of data * @consumed: number of bytes consumed by the caller * @dst: destination buffer * @conf: search configuration * @state: search state * * Called repeatedly until 0 is returned. Must assign the * head of the next block of data to &*dst and return the length * of the block or 0 if at the end. consumed == 0 indicates * a new search. May store/read persistent values in state->cb. */ unsigned int (*get_next_block)(unsigned int consumed, const u8 **dst, struct ts_config *conf, struct ts_state *state); /** * finish - finalize/clean a series of get_next_block() calls * @conf: search configuration * @state: search state * * Called after the last use of get_next_block(), may be used * to cleanup any leftovers. */ void (*finish)(struct ts_config *conf, struct ts_state *state); }; /** * textsearch_next - continue searching for a pattern * @conf: search configuration * @state: search state * * Continues a search looking for more occurrences of the pattern. * textsearch_find() must be called to find the first occurrence * in order to reset the state. * * Returns the position of the next occurrence of the pattern or * UINT_MAX if not match was found. */ static inline unsigned int textsearch_next(struct ts_config *conf, struct ts_state *state) { unsigned int ret = conf->ops->find(conf, state); if (conf->finish) conf->finish(conf, state); return ret; } /** * textsearch_find - start searching for a pattern * @conf: search configuration * @state: search state * * Returns the position of first occurrence of the pattern or * UINT_MAX if no match was found. */ static inline unsigned int textsearch_find(struct ts_config *conf, struct ts_state *state) { state->offset = 0; return textsearch_next(conf, state); } /** * textsearch_get_pattern - return head of the pattern * @conf: search configuration */ static inline void *textsearch_get_pattern(struct ts_config *conf) { return conf->ops->get_pattern(conf); } /** * textsearch_get_pattern_len - return length of the pattern * @conf: search configuration */ static inline unsigned int textsearch_get_pattern_len(struct ts_config *conf) { return conf->ops->get_pattern_len(conf); } extern int textsearch_register(struct ts_ops *); extern int textsearch_unregister(struct ts_ops *); extern struct ts_config *textsearch_prepare(const char *, const void *, unsigned int, gfp_t, int); extern void textsearch_destroy(struct ts_config *conf); extern unsigned int textsearch_find_continuous(struct ts_config *, struct ts_state *, const void *, unsigned int); #define TS_PRIV_ALIGNTO 8 #define TS_PRIV_ALIGN(len) (((len) + TS_PRIV_ALIGNTO-1) & ~(TS_PRIV_ALIGNTO-1)) static inline struct ts_config *alloc_ts_config(size_t payload, gfp_t gfp_mask) { struct ts_config *conf; conf = kzalloc(TS_PRIV_ALIGN(sizeof(*conf)) + payload, gfp_mask); if (conf == NULL) return ERR_PTR(-ENOMEM); return conf; } static inline void *ts_config_priv(struct ts_config *conf) { return ((u8 *) conf + TS_PRIV_ALIGN(sizeof(struct ts_config))); } #endif


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