From 96cdb5384d962a7d3be598f0bc9e2be73796e80c Mon Sep 17 00:00:00 2001 From: James Zhu Date: Wed, 17 May 2023 16:25:12 -0400 Subject: [PATCH] drm/amdkfd: set activated flag true when event age unmatchs Set waiter's activated flag true when event age unmatchs with last_event_age. Signed-off-by: James Zhu Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_events.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c index d71ea0659d2f3..545179535d21a 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c @@ -41,6 +41,7 @@ struct kfd_event_waiter { wait_queue_entry_t wait; struct kfd_event *event; /* Event to wait for */ bool activated; /* Becomes true when event is signaled */ + bool event_age_enabled; /* set to true when last_event_age is non-zero */ }; /* @@ -797,9 +798,9 @@ static struct kfd_event_waiter *alloc_event_waiters(uint32_t num_events) static int init_event_waiter(struct kfd_process *p, struct kfd_event_waiter *waiter, - uint32_t event_id) + struct kfd_event_data *event_data) { - struct kfd_event *ev = lookup_event_by_id(p, event_id); + struct kfd_event *ev = lookup_event_by_id(p, event_data->event_id); if (!ev) return -EINVAL; @@ -808,6 +809,15 @@ static int init_event_waiter(struct kfd_process *p, waiter->event = ev; waiter->activated = ev->signaled; ev->signaled = ev->signaled && !ev->auto_reset; + + /* last_event_age = 0 reserved for backward compatible */ + if (waiter->event->type == KFD_EVENT_TYPE_SIGNAL && + event_data->signal_event_data.last_event_age) { + waiter->event_age_enabled = true; + if (ev->event_age != event_data->signal_event_data.last_event_age) + waiter->activated = true; + } + if (!waiter->activated) add_wait_queue(&ev->wq, &waiter->wait); spin_unlock(&ev->lock); @@ -948,8 +958,7 @@ int kfd_wait_on_events(struct kfd_process *p, goto out_unlock; } - ret = init_event_waiter(p, &event_waiters[i], - event_data.event_id); + ret = init_event_waiter(p, &event_waiters[i], &event_data); if (ret) goto out_unlock; } -- 2.30.2