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[intel-gem] Remember last offset of reused BOs to avoid more kernel relocs.

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This is good for about 5% on ipers on 965, and should help any cpu-bound app.
This commit is contained in:
Eric Anholt 2008-05-30 15:12:15 -07:00
parent d8395f9d9e
commit fccc427aac
1 changed files with 3 additions and 1 deletions
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4
src/mesa/drivers/dri/intel/intel_bufmgr_gem.c
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@ -65,6 +65,7 @@ struct intel_validate_entry {
struct dri_gem_bo_bucket_entry {
uint32_t gem_handle;
uint32_t last_offset;
struct dri_gem_bo_bucket_entry *next;
};
@ -306,6 +307,7 @@ dri_gem_bo_alloc(dri_bufmgr *bufmgr, const char *name,
bucket->num_entries--;
bo_gem->gem_handle = entry->gem_handle;
bo_gem->bo.offset = entry->last_offset;
free(entry);
}
}
@ -324,7 +326,6 @@ dri_gem_bo_alloc(dri_bufmgr *bufmgr, const char *name,
}
}
bo_gem->bo.offset = 0;
bo_gem->bo.virtual = NULL;
bo_gem->bo.bufmgr = bufmgr;
bo_gem->name = name;
@ -436,6 +437,7 @@ dri_gem_bo_unreference(dri_bo *bo)
entry = calloc(1, sizeof(*entry));
entry->gem_handle = bo_gem->gem_handle;
entry->last_offset = bo->offset;
entry->next = NULL;
*bucket->tail = entry;