diff mbox series

[CI,6/7] drm/i915/buddy: tweak 2big check

Message ID 20220225145502.331818-6-matthew.auld@intel.com (mailing list archive)
State New, archived
Headers show
Series [CI,1/7] drm/i915: add io_size plumbing | expand

Commit Message

Matthew Auld Feb. 25, 2022, 2:55 p.m. UTC 
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>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Nirmoy Das <nirmoy.das@intel.com>
---
 drivers/gpu/drm/i915/i915_ttm_buddy_manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
index 0ac6b2463fd5..92d49a3c378c 100644
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
@@ -82,7 +82,7 @@  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;
 	}