On 2023-06-06 12:24, James Zhu wrote:
Add event age tracking

Signed-off-by: James Zhu <james....@amd.com>
---
  include/uapi/linux/kfd_ioctl.h | 13 +++++++++++--
  1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index 1781e7669982..eeb2fdcbdcb7 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -39,9 +39,10 @@
   * - 1.11 - Add unified memory for ctx save/restore area
   * - 1.12 - Add DMA buf export ioctl
   * - 1.13 - Add debugger API
+ * - 1.14 - Update kfd_event_data
   */
  #define KFD_IOCTL_MAJOR_VERSION 1
-#define KFD_IOCTL_MINOR_VERSION 13
+#define KFD_IOCTL_MINOR_VERSION 14

Bumping the version number should be done in the last patch in the series, once the feature is fully enabled.

Regards,
  Felix


struct kfd_ioctl_get_version_args {
        __u32 major_version;    /* from KFD */
@@ -320,12 +321,20 @@ struct kfd_hsa_hw_exception_data {
        __u32 gpu_id;
  };
+/* hsa signal event data */
+struct kfd_hsa_signal_event_data {
+       __u64 last_event_age;   /* to and from KFD */
+};
+
  /* Event data */
  struct kfd_event_data {
        union {
+               /* From KFD */
                struct kfd_hsa_memory_exception_data memory_exception_data;
                struct kfd_hsa_hw_exception_data hw_exception_data;
-       };                              /* From KFD */
+               /* To and From KFD */
+               struct kfd_hsa_signal_event_data signal_event_data;
+       };
        __u64 kfd_event_data_ext;       /* pointer to an extension structure
                                           for future exception types */
        __u32 event_id;         /* to KFD */

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