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From a2d1edc1982ff1b9cbd2fbba905489f4557ba54c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Fri, 19 Feb 2016 10:03:03 +0100
Subject: [PATCH 0942/1565] drm/amdgpu: disable direct VM updates when vm_debug
is set
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
That should make user space bugs more obvious.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 7380f78..d20c2a8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -596,7 +596,8 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
break;
}
ttm_eu_backoff_reservation(&ticket, &list);
- if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE))
+ if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE) &&
+ !amdgpu_vm_debug)
amdgpu_gem_va_update_vm(adev, bo_va, args->operation);
drm_gem_object_unreference_unlocked(gobj);
--
1.9.1
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