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From 4c0e41f8384bb9c662a3f5f0498bba9ae8a89252 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Mon, 9 Oct 2017 17:53:06 +0200
Subject: [PATCH 2006/4131] drm/amdgpu: add VRAM lost query
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Allows userspace to figure out if VRAM was lost.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index b529d7e..4a35d1b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -807,6 +807,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
}
return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
}
+ case AMDGPU_INFO_VRAM_LOST_COUNTER:
+ ui32 = atomic_read(&adev->vram_lost_counter);
+ return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
default:
DRM_DEBUG_KMS("Invalid request %d\n", info->query);
return -EINVAL;
--
2.7.4
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