diff options
| author | Shaoyun Liu <Shaoyun.Liu@amd.com> | 2018-07-11 22:32:56 -0400 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2018-07-11 22:32:56 -0400 |
| commit | e42051d2133b7912db99bd3a307c9219a88fe7c2 (patch) | |
| tree | 2c5a8c8149af2b94af15aa1316ea43d6b98da349 /drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | |
| parent | 5c6dd71e597f33d517710affe3b8d8de253bc86d (diff) | |
drm/amdkfd: Implement GPU reset handlers in KFD
Lock KFD and evict existing queues on reset. Notify user mode by
signaling hw_exception events.
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_chardev.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 7e717716b90e..b5338bff8cef 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -122,6 +122,9 @@ static int kfd_open(struct inode *inode, struct file *filep) if (IS_ERR(process)) return PTR_ERR(process); + if (kfd_is_locked()) + return -EAGAIN; + dev_dbg(kfd_device, "process %d opened, compat mode (32 bit) - %d\n", process->pasid, process->is_32bit_user_mode); |