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gpu: nvgpu: add device alarms

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Add event definitions for:
- Clock alarm (target frequency not met)
- Thermal alarm (temperature above threshold)
- Power alarm (power above threshold)
- GPU shut down

Jira DNVGPU-186

Change-Id: I52edd44352ed0cba83033949272f41cc9e1c630f
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1249342
(cherry picked from commit 67a6681aade241ff24982771778f7e2193d1cd7f)
Reviewed-on: http://git-master/r/1267157
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Thomas Fleury
2016-11-07 10:17:56 -08:00
committed by mobile promotions
parent 0250221955
commit ec011cd1ee
3 changed files with 79 additions and 9 deletions
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77
include/uapi/linux/nvgpu.h
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@@ -126,6 +126,10 @@ struct nvgpu_gpu_zbc_query_table_args {
#define NVGPU_GPU_FLAGS_SUPPORT_GET_POWER (1ULL << 12)
/* NVGPU_GPU_IOCTL_GET_TEMPERATURE is available */
#define NVGPU_GPU_FLAGS_SUPPORT_GET_TEMPERATURE (1ULL << 13)
/* NVGPU_GPU_IOCTL_SET_THERM_ALERT_LIMIT is available */
#define NVGPU_GPU_FLAGS_SUPPORT_SET_THERM_ALERT_LIMIT (1ULL << 14)
/* NVGPU_GPU_IOCTL_GET_EVENT_FD is available */
#define NVGPU_GPU_FLAGS_SUPPORT_DEVICE_EVENTS (1ULL << 15)
struct nvgpu_gpu_characteristics {
__u32 arch;
@@ -223,6 +227,8 @@ struct nvgpu_gpu_characteristics {
- If the last field is reserved/padding, it is not
generally safe to repurpose the field in future revisions.
*/
__s16 event_ioctl_nr_last;
__u16 pad[3];
};
struct nvgpu_gpu_get_characteristics {
@@ -684,12 +690,18 @@ struct nvgpu_gpu_clk_set_info_args {
__s32 completion_fd;
};
struct nvgpu_gpu_clk_get_event_fd_args {
struct nvgpu_gpu_get_event_fd_args {
/* in: Flags (not currently used). */
__u32 flags;
/* out: File descriptor for events, i.e. any clock update. */
/* out: File descriptor for events, i.e. clock update.
* On successful polling of this event_fd, application is
* expected to read status (nvgpu_gpu_event_info),
* which provides detailed event information
* For a poll operation, alarms will be reported with POLLPRI,
* and GPU shutdown will be reported with POLLHUP.
*/
__s32 event_fd;
};
@@ -815,8 +827,8 @@ struct nvgpu_gpu_get_temperature_args {
_IOWR(NVGPU_GPU_IOCTL_MAGIC, 30, struct nvgpu_gpu_clk_get_info_args)
#define NVGPU_GPU_IOCTL_CLK_SET_INFO \
_IOWR(NVGPU_GPU_IOCTL_MAGIC, 31, struct nvgpu_gpu_clk_set_info_args)
#define NVGPU_GPU_IOCTL_CLK_GET_EVENT_FD \
_IOWR(NVGPU_GPU_IOCTL_MAGIC, 32, struct nvgpu_gpu_clk_get_event_fd_args)
#define NVGPU_GPU_IOCTL_GET_EVENT_FD \
_IOWR(NVGPU_GPU_IOCTL_MAGIC, 32, struct nvgpu_gpu_get_event_fd_args)
#define NVGPU_GPU_IOCTL_GET_MEMORY_STATE \
_IOWR(NVGPU_GPU_IOCTL_MAGIC, 33, \
struct nvgpu_gpu_get_memory_state_args)
@@ -835,6 +847,63 @@ struct nvgpu_gpu_get_temperature_args {
#define NVGPU_GPU_IOCTL_MAX_ARG_SIZE \
sizeof(struct nvgpu_gpu_get_cpu_time_correlation_info_args)
/*
* Event session
*
* NVGPU_GPU_IOCTL_GET_EVENT_FD opens an event session.
* Below ioctls can be used on these sessions fds.
*/
#define NVGPU_EVENT_IOCTL_MAGIC 'E'
/* Normal events (POLLIN) */
/* Event associated to a VF update */
#define NVGPU_GPU_EVENT_VF_UPDATE 0
/* Recoverable alarms (POLLPRI) */
/* Alarm when target frequency on any session is not possible */
#define NVGPU_GPU_EVENT_ALARM_TARGET_VF_NOT_POSSIBLE 2
/* Alarm when target frequency on current session is not possible */
#define NVGPU_GPU_EVENT_ALARM_LOCAL_TARGET_VF_NOT_POSSIBLE 3
/* Alarm when Clock Arbiter failed */
#define NVGPU_GPU_EVENT_ALARM_CLOCK_ARBITER_FAILED 4
/* Alarm when VF table update failed */
#define NVGPU_GPU_EVENT_ALARM_VF_TABLE_UPDATE_FAILED 5
/* Alarm on thermal condition */
#define NVGPU_GPU_EVENT_ALARM_THERMAL_ABOVE_THRESHOLD 6
/* Alarm on power condition */
#define NVGPU_GPU_EVENT_ALARM_POWER_ABOVE_THRESHOLD 7
/* Non recoverable alarm (POLLUP) */
/* Alarm on GPU shutdown/fall from bus */
#define NVGPU_GPU_EVENT_ALARM_GPU_LOST 8
struct nvgpu_gpu_event_info {
__u32 event_id; /* NVGPU_GPU_EVENT_* */
__u32 reserved;
__u64 timestamp; /* GPU timestamp */
};
struct nvgpu_gpu_set_event_filter_args {
/* in: Flags (not currently used). */
__u32 flags;
/* in: Size of event filter in 32-bit words */
__u32 size;
/* in: Address of buffer containing bit mask of events.
* Bit #n is set if event #n should be monitored.
*/
__u64 buffer;
};
#define NVGPU_EVENT_IOCTL_SET_FILTER \
_IOW(NVGPU_EVENT_IOCTL_MAGIC, 1, struct nvgpu_gpu_set_event_filter_args)
#define NVGPU_EVENT_IOCTL_LAST \
_IOC_NR(NVGPU_EVENT_IOCTL_SET_FILTER)
#define NVGPU_EVENT_IOCTL_MAX_ARG_SIZE \
sizeof(struct nvgpu_gpu_set_event_filter_args)
/*
* /dev/nvhost-tsg-gpu device
*