1 files changed, 40 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/1470-drm-amdgpu-Don-t-wait-for-fence-when-unmapping-freei.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/1470-drm-amdgpu-Don-t-wait-for-fence-when-unmapping-freei.patch
new file mode 100644
index 00000000..04f3a881
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/1470-drm-amdgpu-Don-t-wait-for-fence-when-unmapping-freei.patch
@@ -0,0 +1,40 @@
+From 2209febf8bd080310f954401d24359d2f4c86bb0 Mon Sep 17 00:00:00 2001
+From: Felix Kuehling <Felix.Kuehling@amd.com>
+Date: Tue, 28 Jun 2016 18:26:24 -0400
+Subject: [PATCH 1470/4131] drm/amdgpu: Don't wait for fence when
+ unmapping/freeing buffers
+
+When unmapping and freeing buffers, user mode doesn't need to wait
+for the completion of the page table update fence.
+
+Change-Id: Idd948d1f3d7a7000b3845d16a81dbd2f8a9e8a8c
+Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+index 4ed616b..b1e1598 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+@@ -874,7 +874,7 @@ int amdgpu_amdkfd_gpuvm_free_memory_of_gpu(
+ 				entry);
+ 	}
+ 
+-	unreserve_bo_and_vms(&ctx, true);
++	unreserve_bo_and_vms(&ctx, false);
+ 
+ 	/* Free the BO*/
+ 	amdgpu_bo_unref(&mem->data2.bo);
+@@ -1210,7 +1210,7 @@ int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu(
+ 	}
+ 
+ unreserve_out:
+-	unreserve_bo_and_vms(&ctx, true);
++	unreserve_bo_and_vms(&ctx, false);
+ out:
+ 	mutex_unlock(&mem->data2.lock);
+ 	return ret;
+-- 
+2.7.4
+