diff options
| author | Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com> | 2020-01-21 22:34:51 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-13 00:00:47 +0300 |
| commit | 3c1224c02e995685bb386f259ae2f737eca739f3 (patch) | |
| tree | aeb4da47f0b2e231c51cb3201e910fe9b7e950f9 /drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | |
| parent | 70bedd68e7b3a7f1d7f3198bb698fc23bc5aaa68 (diff) | |
| download | linux-3c1224c02e995685bb386f259ae2f737eca739f3.tar.xz | |
drm/amdkfd: show warning when kfd is locked
During system suspend the kfd driver aquires a lock that prohibits
further kfd actions unless the gpu is resumed. This adds some info which
can be useful while debugging.
Reviewed-by: Oak Zeng <oak.zeng@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_chardev.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 3f0300e53727..8d56afd76eb3 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -127,6 +127,8 @@ static int kfd_open(struct inode *inode, struct file *filep) return PTR_ERR(process); if (kfd_is_locked()) { + dev_dbg(kfd_device, "kfd is locked!\n" + "process %d unreferenced", process->pasid); kfd_unref_process(process); return -EAGAIN; } |