diff options
| author | Radhakrishna Sripada <radhakrishna.sripada@intel.com> | 2020-03-06 10:58:33 -0800 |
|---|---|---|
| committer | José Roberto de Souza <jose.souza@intel.com> | 2020-03-10 13:43:18 -0700 |
| commit | 765e7cd9a6fd488c6575a5e7952e5d7d3ac87520 (patch) | |
| tree | f18fd8b628026cf12ba9e40cb39fe40c60a332a2 | |
| parent | dff8ba1cd4b76492fa1cb5639866cafaccb5dc18 (diff) | |
drm/i915/display: Do not write in removed FBC fence registers
Platforms without fences don't have FBC host tracking and those
registers are marked as reserved in those platforms.
v2: checking num_fences to write to FBC fence registers (Ville)
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200306185833.53984-2-jose.souza@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_fbc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 010b1107671f..2e5d835a9eaa 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -321,7 +321,7 @@ static void gen7_fbc_activate(struct drm_i915_private *dev_priv) SNB_CPU_FENCE_ENABLE | params->fence_id); intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, params->crtc.fence_y_offset); - } else { + } else if (dev_priv->ggtt.num_fences) { intel_de_write(dev_priv, SNB_DPFC_CTL_SA, 0); intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, 0); } |