On 2016年12月16日 01:59, Nicolai Hähnle wrote:
From: Nicolai Hähnle <nicolai.haehnle@xxxxxxx>
Skip amdgpu_gem_va_update_vm otherwise. Also clean up the check for the
non-shadow page tables using the new helper function.
This fixes a crash with the stack trace:
amdgpu_gem_va_update_vm
-> amdgpu_vm_update_page_directory
-> amdgpu_ttm_bind
-> amdgpu_gtt_mgr_alloc
v2: actually check bo->shadow instead of just checking bo twice
Signed-off-by: Nicolai Hähnle <nicolai.haehnle@xxxxxxx>
Reviewed-by: Chunming Zhou <david1.zhou@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 4e1eb05..9bd1b4e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -464,26 +464,29 @@ int amdgpu_gem_metadata_ioctl(struct drm_device *dev, void *data,
unreserve:
amdgpu_bo_unreserve(robj);
out:
drm_gem_object_unreference_unlocked(gobj);
return r;
}
static int amdgpu_gem_va_check(void *param, struct amdgpu_bo *bo)
{
- unsigned domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
-
/* if anything is swapped out don't swap it in here,
just abort and wait for the next CS */
+ if (!amdgpu_bo_gpu_accessible(bo))
+ return -ERESTARTSYS;
+
+ if (bo->shadow && !amdgpu_bo_gpu_accessible(bo->shadow))
+ return -ERESTARTSYS;
- return domain == AMDGPU_GEM_DOMAIN_CPU ? -ERESTARTSYS : 0;
+ return 0;
}
/**
* amdgpu_gem_va_update_vm -update the bo_va in its VM
*
* @adev: amdgpu_device pointer
* @bo_va: bo_va to update
*
* Update the bo_va directly after setting it's address. Errors are not
* vital here, so they are not reported back to userspace.
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