Add pc sampling release when process release, it will force to
stop all activate sessions with this process.
Signed-off-by: James Zhu <James.Zhu@xxxxxxx>
---
drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c | 25 ++++++++++++++++++++
drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.h | 1 +
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 3 +++
3 files changed, 29 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c b/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c
index ea9478c3738a..783844ddd82f 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c
@@ -337,6 +337,31 @@ static int kfd_pc_sample_destroy(struct kfd_process_device *pdd, uint32_t trace_
return 0;
}
+void kfd_pc_sample_release(struct kfd_process_device *pdd)
+{
+ struct pc_sampling_entry *pcs_entry;
+ struct idr *idp;
+ uint32_t id;
+
+ /* force to release all PC sampling task for this process */
+ idp = &pdd->dev->pcs_data.hosttrap_entry.base.pc_sampling_idr;
+ do {
+ pcs_entry = NULL;
+ mutex_lock(&pdd->dev->pcs_data.mutex);
+ idr_for_each_entry(idp, pcs_entry, id) {
+ if (pcs_entry->pdd != pdd)
+ continue;
+ break;
+ }
+ mutex_unlock(&pdd->dev->pcs_data.mutex);
+ if (pcs_entry) {
+ if (pcs_entry->enabled)
+ kfd_pc_sample_stop(pdd, pcs_entry);
+ kfd_pc_sample_destroy(pdd, id, pcs_entry);
+ }
+ } while (pcs_entry);
+}
+
int kfd_pc_sample(struct kfd_process_device *pdd,
struct kfd_ioctl_pc_sample_args __user *args)
{
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.h b/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.h
index 4eeded4ea5b6..6175563ca9be 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.h
@@ -30,5 +30,6 @@
int kfd_pc_sample(struct kfd_process_device *pdd,
struct kfd_ioctl_pc_sample_args __user *args);
+void kfd_pc_sample_release(struct kfd_process_device *pdd);
#endif /* KFD_PC_SAMPLING_H_ */
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 4a450abf9fa9..bbad0b0848df 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -43,6 +43,7 @@ struct mm_struct;
#include "kfd_svm.h"
#include "kfd_smi_events.h"
#include "kfd_debug.h"
+#include "kfd_pc_sampling.h"
/*
* List of struct kfd_process (field kfd_process).
@@ -1021,6 +1022,8 @@ static void kfd_process_destroy_pdds(struct kfd_process *p)
pr_debug("Releasing pdd (topology id %d) for process (pasid 0x%x)\n",
pdd->dev->id, p->pasid);
+ kfd_pc_sample_release(pdd);
+
kfd_process_device_destroy_cwsr_dgpu(pdd);
kfd_process_device_destroy_ib_mem(pdd);
--
2.25.1
