Otherwise we get -EINVAL, instead of the more useful -E2BIG if the allocation doesn't fit within the pfn range, like with mappable lmem. The hugepages selftest, for example, needs this to know if a smaller size is needed.
Signed-off-by: Matthew Auld matthew.auld@intel.com Cc: Thomas Hellström thomas.hellstrom@linux.intel.com --- drivers/gpu/drm/i915/i915_ttm_buddy_manager.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c index bc725a92fc5c..7c24cc6608e3 100644 --- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c +++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c @@ -81,7 +81,7 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man, lpfn = pages; }
- if (size > mm->size) { + if (size > lpfn << PAGE_SHIFT) { err = -E2BIG; goto err_free_res; }