[PATCH 3/3] drm/i915: Remove the contiguous computation and trim

[Arunpravin Paneer Selvam]

As we have implemented a new method for contiguous allocation
which requires actual size and actual min_block_size, hence we
have moved the roundup and alignment size computation to buddy
allocator. This way gpu drivers pass the required size and
alignment to buddy allocator and rest of the operations taken
care by drm_buddy_alloc_blocks() function.

We have moved the trim function call to the drm_buddy_alloc_blocks()
function as we dont have the roundup or aligned size in our driver.

Now we have all in one place and it will be easy to manage in
buddy allocator.

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam at amd.com>
---
 drivers/gpu/drm/i915/i915_ttm_buddy_manager.c | 23 +++----------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
index a1bc804cfa15..0d735d5c2b35 100644
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
@@ -59,6 +59,9 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
 	if (place->flags & TTM_PL_FLAG_TOPDOWN)
 		bman_res->flags |= DRM_BUDDY_TOPDOWN_ALLOCATION;
 
+	if (place->flags & TTM_PL_FLAG_CONTIGUOUS)
+		bman_res->flags |= DRM_BUDDY_CONTIGUOUS_ALLOCATION;
+
 	if (place->fpfn || lpfn != man->size)
 		bman_res->flags |= DRM_BUDDY_RANGE_ALLOCATION;
 
@@ -72,18 +75,6 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
 	GEM_BUG_ON(min_page_size < mm->chunk_size);
 	GEM_BUG_ON(!IS_ALIGNED(size, min_page_size));
 
-	if (place->fpfn + PFN_UP(bman_res->base.size) != place->lpfn &&
-	    place->flags & TTM_PL_FLAG_CONTIGUOUS) {
-		unsigned long pages;
-
-		size = roundup_pow_of_two(size);
-		min_page_size = size;
-
-		pages = size >> ilog2(mm->chunk_size);
-		if (pages > lpfn)
-			lpfn = pages;
-	}
-
 	if (size > lpfn << PAGE_SHIFT) {
 		err = -E2BIG;
 		goto err_free_res;
@@ -107,14 +98,6 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
 	if (unlikely(err))
 		goto err_free_blocks;
 
-	if (place->flags & TTM_PL_FLAG_CONTIGUOUS) {
-		u64 original_size = (u64)bman_res->base.size;
-
-		drm_buddy_block_trim(mm,
-				     original_size,
-				     &bman_res->blocks);
-	}
-
 	if (lpfn <= bman->visible_size) {
 		bman_res->used_visible_size = PFN_UP(bman_res->base.size);
 	} else {
-- 
2.25.1