1 files changed, 34 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3662-drm-amdgpu-ignore-changes-of-buffer-function-status-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3662-drm-amdgpu-ignore-changes-of-buffer-function-status-.patch
new file mode 100644
index 00000000..16b04509
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3662-drm-amdgpu-ignore-changes-of-buffer-function-status-.patch
@@ -0,0 +1,34 @@
+From b84ce0a1bbe40daa25bda5402e5a4521ac4985af Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
+Date: Thu, 1 Mar 2018 11:03:27 +0100
+Subject: [PATCH 3662/4131] drm/amdgpu: ignore changes of buffer function
+ status because of GPU resets
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+When we reset the GPU we also disable/enable the SDMA, but we don't want
+to change TTM idea of the VRAM size in the middle of that.
+
+Signed-off-by: Christian König <christian.koenig@amd.com>
+Acked-by: Chunming zhou <david1.zhou@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+index fa87a00..9fe7999 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+@@ -1787,7 +1787,7 @@ void amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable)
+ 	struct ttm_mem_type_manager *man = &adev->mman.bdev.man[TTM_PL_VRAM];
+ 	uint64_t size;
+ 
+-	if (!adev->mman.initialized)
++	if (!adev->mman.initialized || adev->in_gpu_reset)
+ 		return;
+ 
+ 	/* this just adjusts TTM size idea, which sets lpfn to the correct value */
+-- 
+2.7.4
+