Am 17.08.20 um 12:34 schrieb Kevin Wang:
v1:
add trace event enabled check to avoid nop loop when submit multi ibs
in amdgpu_cs_ioctl() function.
v2:
add a new wrapper function to trace all amdgpu cs ibs.
Signed-off-by: Kevin Wang <[email protected]>
Reviewed-by: Christian König <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index ffbcaf4bfb8b..1921e61a37b9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1275,13 +1275,24 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
return r;
}
+static void trace_amdgpu_cs_ibs(struct amdgpu_cs_parser *parser)
+{
+ int i;
+
+ if (!trace_amdgpu_cs_enabled())
+ return;
+
+ for (i = 0; i < parser->job->num_ibs; i++)
+ trace_amdgpu_cs(parser, i);
+}
+
int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
{
struct amdgpu_device *adev = dev->dev_private;
union drm_amdgpu_cs *cs = data;
struct amdgpu_cs_parser parser = {};
bool reserved_buffers = false;
- int i, r;
+ int r;
if (amdgpu_ras_intr_triggered())
return -EHWPOISON;
@@ -1319,8 +1330,7 @@ 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);
+ trace_amdgpu_cs_ibs(&parser);
r = amdgpu_cs_vm_handling(&parser);
if (r)
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