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drm/amdkfd: update user space last_event_age

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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: James Zhu <James.Zhu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
James Zhu
2023-06-08 11:22:03 -04:00
committed by Alex Deucher
parent 96cdb5384d
commit 973fddea6f
1 changed files with 15 additions and 8 deletions
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23
drivers/gpu/drm/amd/amdkfd/kfd_events.c
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@@ -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) {
dst = &data[i].memory_exception_data;
src = &event->memory_exception_data;
if (copy_to_user(dst, src,
sizeof(struct kfd_hsa_memory_exception_data)))
if (waiter->activated) {
if (event->type == KFD_EVENT_TYPE_MEMORY) {
dst = &data[i].memory_exception_data;
src = &event->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;
}
}