[PATCH 2/3] drm/amdgpu: fix "use bulk moves for efficient VM LRU handling" v2

Christian König ckoenig.leichtzumerken at gmail.com
Fri Aug 31 13:10:18 UTC 2018


First step to fix the LRU corruption, we accidentially tried to move things
on the LRU after dropping the lock.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index dd734970e167..349dcc37ee64 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1237,6 +1237,8 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 	ring = to_amdgpu_ring(entity->rq->sched);
 	amdgpu_ring_priority_get(ring, priority);
 
+	amdgpu_vm_move_to_lru_tail(p->adev, &fpriv->vm);
+
 	ttm_eu_fence_buffer_objects(&p->ticket, &p->validated, p->fence);
 	amdgpu_mn_unlock(p->mn);
 
@@ -1258,7 +1260,6 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 	union drm_amdgpu_cs *cs = data;
 	struct amdgpu_cs_parser parser = {};
 	bool reserved_buffers = false;
-	struct amdgpu_fpriv *fpriv;
 	int i, r;
 
 	if (!adev->accel_working)
@@ -1303,8 +1304,6 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 
 	r = amdgpu_cs_submit(&parser, cs);
 
-	fpriv = filp->driver_priv;
-	amdgpu_vm_move_to_lru_tail(adev, &fpriv->vm);
 out:
 	amdgpu_cs_parser_fini(&parser, r, reserved_buffers);
 	return r;
-- 
2.14.1



More information about the amd-gfx mailing list