github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-26 16:12:59 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/i915: Round up when calculating display bandwidth requirements

Browse Source 
We should round up when doing bandwidth calculations to make sure
our estimates don't fall short of the actual number.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220303191207.27931-7-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
This commit is contained in:
Ville Syrjälä 2022-03-03 21:12:04 +02:00
parent 7243867c6f
commit 6c69d0bb9f
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/display/intel_bw.c
View File

@ -638,7 +638,7 @@ static unsigned int intel_bw_data_rate(struct drm_i915_private *dev_priv,
data_rate += bw_state->data_rate[pipe];
if (DISPLAY_VER(dev_priv) >= 13 && intel_vtd_active(dev_priv))
data_rate = data_rate * 105 / 100;
data_rate = DIV_ROUND_UP(data_rate * 105, 100);
return data_rate;
}
@ -763,7 +763,7 @@ int intel_bw_calc_min_cdclk(struct intel_atomic_state *state)
}
}
new_bw_state->min_cdclk = max_bw / 64;
new_bw_state->min_cdclk = DIV_ROUND_UP(max_bw, 64);
if (new_bw_state->min_cdclk != old_bw_state->min_cdclk) {
int ret = intel_atomic_lock_global_state(&new_bw_state->base);