leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/i915: Remove some useless zeroing on skl+ wm calculations

Browse Source 
We memset(0) the entire watermark struct the start, so there's no
need to clear things later on.

v2: Rebase due to some stale w/a removal

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181114210729.16185-7-ville.syrjala@linux.intel.com
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
This commit is contained in:
Ville Syrjälä 2018-11-14 23:07:22 +02:00
parent ce110ec311
commit 14a43062b9
1 changed files with 4 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/gpu/drm/i915/intel_pm.c
View File

@ -4746,10 +4746,8 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
if (latency == 0)
return level == 0 ? -EINVAL : 0;
if (!intel_wm_plane_visible(cstate, intel_pstate)) {
result->plane_en = false;
if (!intel_wm_plane_visible(cstate, intel_pstate))
return 0;
}
/* Display WA #1141: kbl,cfl */
if ((IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv) ||
@ -4846,8 +4844,6 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
if ((level > 0 && res_lines > 31) ||
res_blocks >= ddb_allocation ||
min_disp_buf_needed >= ddb_allocation) {
result->plane_en = false;
/*
* If there are no valid level 0 watermarks, then we can't
* support this display configuration.
@ -4949,15 +4945,15 @@ static void skl_compute_transition_wm(const struct intel_crtc_state *cstate,
uint16_t wm0_sel_res_b, trans_offset_b, res_blocks;
if (!cstate->base.active)
goto exit;
return;
/* Transition WM are not recommended by HW team for GEN9 */
if (INTEL_GEN(dev_priv) <= 9)
goto exit;
return;
/* Transition WM don't make any sense if ipc is disabled */
if (!dev_priv->ipc_enabled)
goto exit;
return;
trans_min = 14;
if (INTEL_GEN(dev_priv) >= 11)
@ -4996,11 +4992,7 @@ static void skl_compute_transition_wm(const struct intel_crtc_state *cstate,
if (res_blocks < ddb_allocation) {
trans_wm->plane_res_b = res_blocks;
trans_wm->plane_en = true;
return;
}
exit:
trans_wm->plane_en = false;
}
static int __skl_build_plane_wm_single(struct skl_ddb_allocation *ddb,