diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_object.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_object.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c index 642a5d59ce26..ccec4055fde3 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c @@ -717,6 +717,32 @@ bool i915_gem_object_placement_possible(struct drm_i915_gem_object *obj, return false; } +/** + * i915_gem_object_needs_ccs_pages - Check whether the object requires extra + * pages when placed in system-memory, in order to save and later restore the + * flat-CCS aux state when the object is moved between local-memory and + * system-memory + * @obj: Pointer to the object + * + * Return: True if the object needs extra ccs pages. False otherwise. + */ +bool i915_gem_object_needs_ccs_pages(struct drm_i915_gem_object *obj) +{ + bool lmem_placement = false; + int i; + + for (i = 0; i < obj->mm.n_placements; i++) { + /* Compression is not allowed for the objects with smem placement */ + if (obj->mm.placements[i]->type == INTEL_MEMORY_SYSTEM) + return false; + if (!lmem_placement && + obj->mm.placements[i]->type == INTEL_MEMORY_LOCAL) + lmem_placement = true; + } + + return lmem_placement; +} + void i915_gem_init__objects(struct drm_i915_private *i915) { INIT_DELAYED_WORK(&i915->mm.free_work, __i915_gem_free_work); |