Am 17.08.20 um 11:04 schrieb Kevin Wang:
add trace event enabled check to avoid nop loop when submit multi ibs
in amdgpu_cs_ioctl() function.
Maybe we should change the trace point instead to trace all IBs with
just a single call.
Signed-off-by: Kevin Wang <kevin1.wang@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index ffbcaf4bfb8b..409694f074ac 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1319,8 +1319,9 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
reserved_buffers = true;
- for (i = 0; i < parser.job->num_ibs; i++)
- trace_amdgpu_cs(&parser, i);
+ if (trace_amdgpu_cs_enabled())
+ for (i = 0; i < parser.job->num_ibs; i++)
+ trace_amdgpu_cs(&parser, i);
r = amdgpu_cs_vm_handling(&parser);
if (r)
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