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Initialize LRU lists in domain of cache lines

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Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga 2022-01-12 09:06:42 +01:00
parent 57fd5c1f20
commit 6611b25d1e
1 changed files with 12 additions and 40 deletions
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52
src/ocf_lru.c
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@ -867,63 +867,35 @@ void ocf_lru_dirty_cline(ocf_cache_t cache, struct ocf_part *part,
OCF_METADATA_LRU_WR_UNLOCK(cline); OCF_METADATA_LRU_WR_UNLOCK(cline);
} }
static ocf_cache_line_t next_phys_invalid(ocf_cache_t cache,
ocf_cache_line_t phys)
{
ocf_cache_line_t lg;
ocf_cache_line_t collision_table_entries =
ocf_metadata_collision_table_entries(cache);
if (phys == collision_table_entries)
return collision_table_entries;
lg = ocf_metadata_map_phy2lg(cache, phys);
while (metadata_test_valid_any(cache, lg)) {
++phys;
if (phys == collision_table_entries)
break;
lg = ocf_metadata_map_phy2lg(cache, phys);
}
return phys;
}
/* put invalid cachelines on freelist partition lru list */ /* put invalid cachelines on freelist partition lru list */
void ocf_lru_populate(ocf_cache_t cache, ocf_cache_line_t num_free_clines) void ocf_lru_populate(ocf_cache_t cache, ocf_cache_line_t num_free_clines)
{ {
ocf_cache_line_t phys, cline; ocf_cache_line_t cnt, cline;
ocf_cache_line_t collision_table_entries = ocf_cache_line_t entries = ocf_metadata_collision_table_entries(cache);
ocf_metadata_collision_table_entries(cache);
struct ocf_lru_list *list; struct ocf_lru_list *list;
unsigned lru_list; unsigned lru_list;
unsigned i;
unsigned step = 0; unsigned step = 0;
phys = 0; cnt = 0;
for (i = 0; i < num_free_clines; i++) { for (cline = 0; cline < entries; cline++) {
/* find first invalid cacheline */ OCF_COND_RESCHED_DEFAULT(step);
phys = next_phys_invalid(cache, phys);
ENV_BUG_ON(phys == collision_table_entries); if (metadata_test_valid_any(cache, cline))
cline = ocf_metadata_map_phy2lg(cache, phys); continue;
++phys;
ocf_metadata_set_partition_id(cache, cline, PARTITION_FREELIST); ocf_metadata_set_partition_id(cache, cline, PARTITION_FREELIST);
lru_list = (cline % OCF_NUM_LRU_LISTS); lru_list = (cline % OCF_NUM_LRU_LISTS);
list = ocf_lru_get_list(&cache->free, lru_list, true); list = ocf_lru_get_list(&cache->free, lru_list, true);
add_lru_head(cache, list, cline); add_lru_head_nobalance(cache, list, cline);
OCF_COND_RESCHED_DEFAULT(step); cnt++;
} }
/* we should have reached the last invalid cache line */ ENV_BUG_ON(cnt != num_free_clines);
phys = next_phys_invalid(cache, phys);
ENV_BUG_ON(phys != collision_table_entries);
env_atomic_set(&cache->free.runtime->curr_size, i); env_atomic_set(&cache->free.runtime->curr_size, cnt);
} }
static bool _is_cache_line_acting(struct ocf_cache *cache, static bool _is_cache_line_acting(struct ocf_cache *cache,