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From a4119361491429e5f18414ea866e608e47a94ae3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Tue, 11 Sep 2018 09:30:46 +0200
Subject: [PATCH 5314/5725] drm/amdgpu: stop pipelining VM PDs/PTs moves
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
We are going to need this for recoverable page fault handling and it
makes shadow handling during GPU reset much more easier.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Junwei Zhang <Jerry.Zhang@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 +++++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 18b87454..2466147 100755
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1410,7 +1410,7 @@ u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
{
WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_SYSTEM);
WARN_ON_ONCE(!ww_mutex_is_locked(&bo->tbo.resv->lock) &&
- !bo->pin_count);
+ !bo->pin_count && bo->tbo.type != ttm_bo_type_kernel);
WARN_ON_ONCE(bo->tbo.mem.start == AMDGPU_BO_INVALID_OFFSET);
WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_VRAM &&
!(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS));
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 1654715..1220809 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -552,7 +552,11 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
if (r)
goto error;
- r = ttm_bo_pipeline_move(bo, fence, evict, new_mem);
+ /* Always block for VM page tables before committing the new location */
+ if (bo->type == ttm_bo_type_kernel)
+ r = ttm_bo_move_accel_cleanup(bo, fence, true, new_mem);
+ else
+ r = ttm_bo_pipeline_move(bo, fence, evict, new_mem);
dma_fence_put(fence);
return r;
--
2.7.4
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