diff options
| author |   Kumar, Mahesh <mahesh1.kumar@intel.com> | 2017-08-17 19:15:26 +0530 |
|---|---|---|
| committer |   Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2017-09-07 13:34:33 +0200 |
| commit | d86ba628ce4bfd83c987e4dab9d917cbb3622854 (patch) | |
| tree | 8d68b86189abda5e47e66fcade9de099a03966ac /drivers/gpu | |
| parent | drm/i915/glk: IPC linetime watermark workaround for GLK (diff) | |
drm/i915/cnl: Extend WM workaround with IPC for CNL
CNL:A & CNL:B have same workaround as KBL to increase wm level latency
by 4us if IPC is enabled.
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170817134529.2839-6-mahesh1.kumar@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 629ad54e2797..f2911de69ea9 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4492,7 +4492,8 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv, } /* Display WA #1141: kbl,cfl */ - if ((IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) && + if ((IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv) || + IS_CNL_REVID(dev_priv, CNL_REVID_A0, CNL_REVID_B0)) && dev_priv->ipc_enabled) latency += 4; |