[Intel-gfx] [PATCH 6/8] drm/i915: add free_unused_pages support to i915

Arunpravin Arunpravin.PaneerSelvam at amd.com
Mon Oct 25 13:00:29 UTC 2021


add drm_buddy_free_unused_pages() support on
contiguous allocation

Signed-off-by: Arunpravin <Arunpravin.PaneerSelvam at amd.com>
---
 drivers/gpu/drm/i915/i915_ttm_buddy_manager.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
index 963468228392..162947af8e04 100644
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
@@ -98,6 +98,14 @@ 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) {
+		err = drm_buddy_free_unused_pages(mm, (uint64_t)n_pages << PAGE_SHIFT,
+						       &bman_res->blocks);
+
+		if (unlikely(err))
+			goto err_free_blocks;
+	}
+
 	*res = &bman_res->base;
 	return 0;
 
-- 
2.25.1



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