[PATCH v2 08/23] drm/amdkfd: enable pc sampling destroy

[James Zhu]

Enable pc sampling destroy.

Signed-off-by: James Zhu <james....@amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c
index e5aa87b2da4f..18fe06d712c5 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_pc_sampling.c
@@ -169,10 +169,24 @@ static int kfd_pc_sample_create(struct kfd_process_device 
*pdd,
        return 0;
 }
 
-static int kfd_pc_sample_destroy(struct kfd_process_device *pdd, uint32_t 
trace_id)
+static int kfd_pc_sample_destroy(struct kfd_process_device *pdd, uint32_t 
trace_id,
+                                       struct pc_sampling_entry *pcs_entry)
 {
-       return -EINVAL;
+       pr_debug("free pcs_entry = %p, trace_id = 0x%x on gpu 0x%x",
+               pcs_entry, trace_id, pdd->dev->id);
+
+       mutex_lock(&pdd->dev->pcs_data.mutex);
+       pdd->dev->pcs_data.hosttrap_entry.base.use_count--;
+       idr_remove(&pdd->dev->pcs_data.hosttrap_entry.base.pc_sampling_idr, 
trace_id);
 
+       if (!pdd->dev->pcs_data.hosttrap_entry.base.use_count)
+               memset(&pdd->dev->pcs_data.hosttrap_entry.base.pc_sample_info, 
0x0,
+                       sizeof(struct kfd_pc_sample_info));
+       mutex_unlock(&pdd->dev->pcs_data.mutex);
+
+       kvfree(pcs_entry);
+
+       return 0;
 }
 
 int kfd_pc_sample(struct kfd_process_device *pdd,
@@ -207,7 +221,7 @@ int kfd_pc_sample(struct kfd_process_device *pdd,
                if (pcs_entry->enabled)
                        return -EBUSY;
                else
-                       return kfd_pc_sample_destroy(pdd, args->trace_id);
+                       return kfd_pc_sample_destroy(pdd, args->trace_id, 
pcs_entry);
 
        case KFD_IOCTL_PCS_OP_START:
                if (pcs_entry->enabled)
-- 
2.25.1