diff mbox series

[4/8] drm/i915/buddy: tweak CONTIGUOUS rounding

Message ID 20220304172333.991778-5-matthew.auld@intel.com (mailing list archive)
State New, archived
Headers show
Series Some more bits for small BAR enabling | expand

Commit Message

Matthew Auld March 4, 2022, 5:23 p.m. UTC 
If this is an actual range allocation, and not some bias thing then the
resultant allocation will already be naturally contiguous without
needing any power-of-two rounding.

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 | 3 ++-
 1 file changed, 2 insertions(+), 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 129f668f21ff..8e4e3f72c1ef 100644
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
@@ -71,7 +71,8 @@  static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
 
 	GEM_BUG_ON(min_page_size < mm->chunk_size);
 
-	if (place->flags & TTM_PL_FLAG_CONTIGUOUS) {
+	if (place->fpfn + bman_res->base.num_pages != place->lpfn &&
+	    place->flags & TTM_PL_FLAG_CONTIGUOUS) {
 		unsigned long pages;
 
 		size = roundup_pow_of_two(size);