diff options
| author | David Francis <David.Francis@amd.com> | 2018-11-30 09:57:06 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-12-05 17:49:49 -0500 |
| commit | 0cf5eb76e2b453b3d159082eb4707c03a1686cf7 (patch) | |
| tree | c8ad7d7aa3e1a9f2817eb67ae68653af60b9b86b /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 5d66ef38bc9df8964ec7b6eb5091dae5e8fe67b4 (diff) | |
drm/amd/display: Add tracing to dc
[Why]
Tracing is a useful and cheap debug functionality
[How]
This creates a new trace system amdgpu_dm, currently with
three trace events
amdgpu_dc_rreg and amdgpu_dc_wreg report the address and value
of any dc register reads and writes
amdgpu_dc_performance requires at least one of those two to be
enabled. It counts the register reads and writes since the
last entry
v2: Don't check for NULL before kfree
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 55e9b1249dd4..943d1ae1de15 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -23,6 +23,9 @@ * */ +/* The caprices of the preprocessor require that this be declared right here */ +#define CREATE_TRACE_POINTS + #include "dm_services_types.h" #include "dc.h" #include "dc/inc/core_types.h" |