diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-09-01 16:04:34 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-09-20 22:29:43 +0300 |
| commit | b4ac591b8e1be78c4eaf089e75034760c0be942c (patch) | |
| tree | 0e620b61d1380d8949fdb90b950b3af21a494398 | |
| parent | 825edc8bc72f3266534a04e9a4447b12332fac82 (diff) | |
drm/i915: Optimize out redundant M/N updates
Don't perform a seamless M/N update if the values aren't actually
changing. This avoids doing extra shenanigans during vblank evasion
needlessly.
Cc: Manasi Navare <navaremanasi@chromium.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901130440.2085-7-ville.syrjala@linux.intel.com
Reviewed-by: Manasi Navare <navaremanasi@chromium.org>
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 22ed72c7d6bf..d3c41bf49263 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -5557,7 +5557,9 @@ static void intel_crtc_check_fastset(const struct intel_crtc_state *old_crtc_sta else new_crtc_state->uapi.mode_changed = false; - if (intel_crtc_needs_modeset(new_crtc_state)) + if (intel_crtc_needs_modeset(new_crtc_state) || + intel_compare_link_m_n(&old_crtc_state->dp_m_n, + &new_crtc_state->dp_m_n)) new_crtc_state->update_m_n = false; if (!intel_crtc_needs_modeset(new_crtc_state)) |