From: Christian König <christian.koenig@amd.com>
Date: Tue, 21 Jun 2016 14:28:14 +0000 (+0200)
Subject: drm/amdgpu: add eviction counter
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=dbd5ed60ac856632609491229e6d7ad70115fb09;p=linux.git

drm/amdgpu: add eviction counter

Keep track of the number of evictions since boot.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index c1abe0900f480..f4d269931dbee 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -2042,6 +2042,7 @@ struct amdgpu_device {
 	atomic64_t			vram_vis_usage;
 	atomic64_t			gtt_usage;
 	atomic64_t			num_bytes_moved;
+	atomic64_t			num_evictions;
 	atomic_t			gpu_reset_counter;
 
 	/* display */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index f85527fbbac5e..b7742e62972a6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -397,6 +397,11 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo,
 		return -EINVAL;
 
 	adev = amdgpu_get_adev(bo->bdev);
+
+	/* remember the eviction */
+	if (evict)
+		atomic64_inc(&adev->num_evictions);
+
 	if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
 		amdgpu_move_null(bo, new_mem);
 		return 0;