From 32f90e65251981f061eec883b0fe9e75d74e9665 Mon Sep 17 00:00:00 2001
From: Guchun Chen <guchun.chen@amd.com>
Date: Tue, 15 Mar 2022 14:46:28 +0800
Subject: [PATCH] drm/amdgpu: prevent memory wipe in suspend/shutdown stage
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On GPUs with RAS enabled, below call trace is observed when
suspending or shutting down device. The cause is we have enabled
memory wipe flag for BOs on such GPUs by default, and such BOs
will go to memory wipe by amdgpu_fill_buffer, however, because
ring is off already, it fails to clean up the memory and throw
this error message. So add a suspend/shutdown check before
wipping memory.
[drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear memory with ring turned off.
v2: fix coding style issue
Fixes: fc6ea4bee13071 ("drm/amdgpu: Wipe all VRAM on free when RAS is enabled")
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 25731719c627d..940752488330f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1284,6 +1284,7 @@ void amdgpu_bo_get_memory(struct amdgpu_bo *bo, uint64_t *vram_mem,
*/
void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
{
+ struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
struct dma_fence *fence = NULL;
struct amdgpu_bo *abo;
int r;
@@ -1303,7 +1304,8 @@ void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
amdgpu_amdkfd_remove_fence_on_pt_pd_bos(abo);
if (bo->resource->mem_type != TTM_PL_VRAM ||
- !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE))
+ !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE) ||
+ adev->in_suspend || adev->shutdown)
return;
if (WARN_ON_ONCE(!dma_resv_trylock(bo->base.resv)))
--
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