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_device.c | |
| parent | drm/amdgpu: enable ih CG for navy_flounder (diff) | |
| download | linux-dev-938a0650aae6275ba8e924685836bdee2c6aa3db.tar.xz linux-dev-938a0650aae6275ba8e924685836bdee2c6aa3db.zip | |
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_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 3a646e757560..4bfedaab183f 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -635,6 +635,11 @@ static int kfd_gws_init(struct kfd_dev *kfd) return ret; } +static void kfd_smi_init(struct kfd_dev *dev) { + INIT_LIST_HEAD(&dev->smi_clients); + spin_lock_init(&dev->smi_lock); +} + bool kgd2kfd_device_init(struct kfd_dev *kfd, struct drm_device *ddev, const struct kgd2kfd_shared_resources *gpu_resources) @@ -749,6 +754,8 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, goto kfd_topology_add_device_error; } + kfd_smi_init(kfd); + kfd->init_complete = true; dev_info(kfd_device, "added device %x:%x\n", kfd->pdev->vendor, kfd->pdev->device); |