diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_region.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_region.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_region.c b/drivers/gpu/drm/i915/gem/i915_gem_region.c index a4350227e9ae..6cf94469d5a8 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_region.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_region.c @@ -45,6 +45,11 @@ i915_gem_object_create_region(struct intel_memory_region *mem, GEM_BUG_ON(flags & ~I915_BO_ALLOC_FLAGS); + if (WARN_ON_ONCE(flags & I915_BO_ALLOC_GPU_ONLY && + (flags & I915_BO_ALLOC_CPU_CLEAR || + flags & I915_BO_ALLOC_PM_EARLY))) + return ERR_PTR(-EINVAL); + if (!mem) return ERR_PTR(-ENODEV); @@ -67,6 +72,17 @@ i915_gem_object_create_region(struct intel_memory_region *mem, if (!obj) return ERR_PTR(-ENOMEM); + /* + * Anything smaller than the min_page_size can't be freely inserted into + * the GTT, due to alignemnt restrictions. For such special objects, + * make sure we force memcpy based suspend-resume. In the future we can + * revisit this, either by allowing special mis-aligned objects in the + * migration path, or by mapping all of LMEM upfront using cheap 1G + * GTT entries. + */ + if (default_page_size < mem->min_page_size) + flags |= I915_BO_ALLOC_PM_EARLY; + err = mem->ops->init_object(mem, obj, size, page_size, flags); if (err) goto err_object_free; |