diff options
| author | Amber Lin <Amber.Lin@amd.com> | 2020-05-13 08:19:29 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-07-15 13:27:34 -0400 |
| commit | 938a0650aae6275ba8e924685836bdee2c6aa3db (patch) | |
| tree | e36ae92e190417ebe89b75ed95101dd0d6fb1780 /drivers/gpu/drm/amd/amdkfd/kfd_priv.h | |
| parent | 85e7151baa2ffc76edd9a0267caffd369ab6cd93 (diff) | |
drm/amdkfd: Provide SMI events watch
When the compute is malfunctioning or performance drops, the system admin
will use SMI (System Management Interface) tool to monitor/diagnostic what
went wrong. This patch provides an event watch interface for the user
space to register devices and subscribe events they are interested. After
registered, the user can use annoymous file descriptor's poll function
with wait-time specified and wait for events to happen. Once an event
happens, the user can use read() to retrieve information related to the
event.
VM fault event is done in this patch.
v2: - remove UNREGISTER and add event ENABLE/DISABLE
- correct kfifo usage
- move event message API to kfd_ioctl.h
v3: send the event msg in text than in binary
v4: support multiple clients
v5: move events enablement from ioctl to fd write
v6: sparse fix
Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_priv.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 67b9c398f0e4..6727e9de5b8b 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -305,6 +305,10 @@ struct kfd_dev { /* Global GWS resource shared between processes */ void *gws; + + /* Clients watching SMI events */ + struct list_head smi_clients; + spinlock_t smi_lock; }; enum kfd_mempool { |