Commit 973fddea authored by James Zhu's avatar James Zhu Committed by Alex Deucher
Browse files

drm/amdkfd: update user space last_event_age 



Update user space last_event_age when event age is enabled.
It is only for KFD_EVENT_TYPE_SIGNAL which is checked by user space.

Signed-off-by: default avatarJames Zhu <James.Zhu@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 96cdb538

drivers/gpu/drm/amd/amdkfd/kfd_events.c

+15 −8
Original line number Diff line number Diff line
@@ -865,22 +865,29 @@ static int copy_signaled_event_data(uint32_t num_events, 
		struct kfd_event_waiter *event_waiters,

		struct kfd_event_data __user *data)

{

	struct kfd_hsa_memory_exception_data *src;

	struct kfd_hsa_memory_exception_data __user *dst;

	void *src;

	void __user *dst;

	struct kfd_event_waiter *waiter;

	struct kfd_event *event;

	uint32_t i;

	uint32_t i, size = 0;



	for (i = 0; i < num_events; i++) {

		waiter = &event_waiters[i];

		event = waiter->event;

		if (!event)

			return -EINVAL; /* event was destroyed */

		if (waiter->activated && event->type == KFD_EVENT_TYPE_MEMORY) {

		if (waiter->activated) {

			if (event->type == KFD_EVENT_TYPE_MEMORY) {

				dst = &data[i].memory_exception_data;

				src = &event->memory_exception_data;

			if (copy_to_user(dst, src,

				sizeof(struct kfd_hsa_memory_exception_data)))

				size = sizeof(struct kfd_hsa_memory_exception_data);

			} else if (event->type == KFD_EVENT_TYPE_SIGNAL &&

				waiter->event_age_enabled) {

				dst = &data[i].signal_event_data.last_event_age;

				src = &event->event_age;

				size = sizeof(u64);

			}

			if (size && copy_to_user(dst, src, size))

				return -EFAULT;

		}

	}