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From a16204bf42369212b7de91896051a24b8980c785 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Tue, 20 Feb 2018 19:09:56 +0100
Subject: [PATCH 3720/4131] drm/amdgpu: drop the backing store when DMA-buf
imports are evicted
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Instead of moving this to the SYSTEM domain just drop the backing store
and let the resulting allocation be freed.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Roger He <Hongbo.He@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index b5ba7eb..5d37184 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -221,6 +221,12 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM
};
+ if (bo->type == ttm_bo_type_sg) {
+ placement->num_placement = 0;
+ placement->num_busy_placement = 0;
+ return;
+ }
+
if (!amdgpu_ttm_bo_is_amdgpu_bo(bo)) {
placement->placement = &placements;
placement->busy_placement = &placements;
--
2.7.4
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