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drm/amdkfd: refine event_interrupt_poison_consumption

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Combine reading and setting poison flag as one atomic operation
and add print message for the function.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tao Zhou 2022-03-15 17:07:21 +08:00 committed by Alex Deucher
parent c5b266810c
commit eed4197530
1 changed files with 6 additions and 7 deletions
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13
drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c
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@ -93,20 +93,19 @@ enum SQ_INTERRUPT_ERROR_TYPE {
static void event_interrupt_poison_consumption(struct kfd_dev *dev,
uint16_t pasid, uint16_t source_id)
{
int ret = -EINVAL;
int old_poison, ret = -EINVAL;
struct kfd_process *p = kfd_lookup_process_by_pasid(pasid);
if (!p)
return;
/* all queues of a process will be unmapped in one time */
if (atomic_read(&p->poison)) {
kfd_unref_process(p);
return;
}
atomic_set(&p->poison, 1);
old_poison = atomic_cmpxchg(&p->poison, 0, 1);
kfd_unref_process(p);
if (old_poison)
return;
pr_warn("RAS poison consumption handling\n");
switch (source_id) {
case SOC15_INTSRC_SQ_INTERRUPT_MSG: