i915_gem_evict_something — Evict vmas to make room for binding a new one
int i915_gem_evict_something ( | struct drm_device * dev, |
| struct i915_address_space * vm, | |
| int min_size, | |
| unsigned alignment, | |
| unsigned cache_level, | |
| unsigned long start, | |
| unsigned long end, | |
unsigned flags); |
devdrm_device
vmaddress space to evict from
min_sizesize of the desired free space
alignmentalignment constraint of the desired free space
cache_levelcache_level for the desired space
startstart (inclusive) of the range from which to evict objects
endend (exclusive) of the range from which to evict objects
flagsadditional flags to control the eviction algorithm
This function will try to evict vmas until a free space satisfying the requirements is found. Callers must check first whether any such hole exists already before calling this function.
This function is used by the object/vma binding code.
Since this function is only used to free up virtual address space it only ignores pinned vmas, and not object where the backing storage itself is pinned. Hence obj->pages_pin_count does not protect against eviction.