diff options
| author | Wesley Chalmers <Wesley.Chalmers@amd.com> | 2019-08-30 14:59:00 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-10-03 09:10:57 -0500 |
| commit | 3a4d180d4a9df63144c6c069860b2be312c3256a (patch) | |
| tree | 6308bb6ef2560ef1d58f91086c09e29e209e3d2d /drivers/gpu/drm/amd/display/dc/core | |
| parent | 2fef0faa1cdc5d41ce3ef83f7b8f7e7ecb02d700 (diff) | |
drm/amd/display: Optimize clocks on clock change
[WHY]
Presently, there is no way for clocks to be lowered, only raised.
[HOW]
Compare clock status against previous known clock status, and optimize
if different.
This requires re-ordering the layout of the dc_clocks structure, as the
current ordering allows identical clock states to appear different.
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Anthony Koo <Anthony.Koo@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/dc/core')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index cbc4501d1c4a..a31c51423529 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1646,6 +1646,9 @@ enum surface_update_type dc_check_update_surfaces_for_stream( updates[i].surface->update_flags.raw = 0xFFFFFFFF; } + if (type == UPDATE_TYPE_FAST && memcmp(&dc->current_state->bw_ctx.bw.dcn.clk, &dc->clk_mgr->clks, offsetof(struct dc_clocks, prev_p_state_change_support)) != 0) + dc->optimized_required = true; + return type; } |