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drm/amdgpu: add to custom amdgpu_drm_release drm_dev_enter/exit

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User queues are disabled before GEM objects are released
(protecting against user app crashes).
No races with PCI hot-unplug (because drm_dev_enter prevents cleanup
if iewdevice is being removed).

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Vitaly Prosyak 2025-08-07 16:37:25 -04:00 committed by Alex Deucher
parent 1dd2fa0e00
commit c31f486bc8
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
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@ -2937,11 +2937,14 @@ static int amdgpu_drm_release(struct inode *inode, struct file *filp)
{
struct drm_file *file_priv = filp->private_data;
struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
struct drm_device *dev = file_priv->minor->dev;
int idx;
if (fpriv) {
if (fpriv && drm_dev_enter(dev, &idx)) {
fpriv->evf_mgr.fd_closing = true;
amdgpu_eviction_fence_destroy(&fpriv->evf_mgr);
amdgpu_userq_mgr_fini(&fpriv->userq_mgr);
drm_dev_exit(idx);
}
return drm_release(inode, filp);