Adding i915 module parameter for setting drrs_interval. If this param is set to 0, then drrs is disabled. If changed in runtime, then the new interval value will be considered for scheduling the next drrs work. drrs_interval is set to 0 by default, i.e. DRRS is disabled by default.
Signed-off-by: Vandana Kannan <[email protected]> --- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_params.c | 8 ++++++++ drivers/gpu/drm/i915/intel_dp.c | 11 ++++++++++- 3 files changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 370cbaa..dba5844 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2381,6 +2381,7 @@ struct i915_params { int enable_ips; int invert_brightness; int enable_cmd_parser; + int drrs_interval; /* leave bools at the end to not create holes */ bool enable_hangcheck; bool fastboot; diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index c91cb20..80492e8 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -51,6 +51,7 @@ struct i915_params i915 __read_mostly = { .disable_vtd_wa = 0, .use_mmio_flip = 0, .mmio_debug = 0, + .drrs_interval = 0, }; module_param_named(modeset, i915.modeset, int, 0400); @@ -173,3 +174,10 @@ module_param_named(mmio_debug, i915.mmio_debug, bool, 0600); MODULE_PARM_DESC(mmio_debug, "Enable the MMIO debug code (default: false). This may negatively " "affect performance."); + +module_param_named(drrs_interval, i915.drrs_interval, int, 0600); +MODULE_PARM_DESC(drrs_interval, + "DRRS idleness detection interval (default: 0 ms). " + "If this field is set to 0, then seamless DRRS feature " + "based on idleness detection is disabled. " + "The interval is to be set in milliseconds."); diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 092ef91..88f46906 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4931,6 +4931,9 @@ void intel_edp_drrs_invalidate(struct drm_device *dev, if (!dev_priv->drrs.dp) return; + if (i915.drrs_interval == 0) + return; + mutex_lock(&dev_priv->drrs.mutex); crtc = dp_to_dig_port(dev_priv->drrs.dp)->base.base.crtc; pipe = to_intel_crtc(crtc)->pipe; @@ -4958,6 +4961,9 @@ void intel_edp_drrs_flush(struct drm_device *dev, if (!dev_priv->drrs.dp) return; + if (i915.drrs_interval == 0) + return; + mutex_lock(&dev_priv->drrs.mutex); crtc = dp_to_dig_port(dev_priv->drrs.dp)->base.base.crtc; pipe = to_intel_crtc(crtc)->pipe; @@ -4968,7 +4974,7 @@ void intel_edp_drrs_flush(struct drm_device *dev, if (dev_priv->drrs.refresh_rate_type != DRRS_LOW_RR && !dev_priv->drrs.busy_frontbuffer_bits) schedule_delayed_work(&dev_priv->drrs.work, - msecs_to_jiffies(1000)); + msecs_to_jiffies(i915.drrs_interval)); mutex_unlock(&dev_priv->drrs.mutex); } @@ -4991,6 +4997,9 @@ intel_dp_drrs_init(struct intel_connector *intel_connector, return NULL; } + if (i915.drrs_interval == 0) + DRM_DEBUG_KMS("DRRS disable by flag\n"); + downclock_mode = intel_find_panel_downclock (dev, fixed_mode, connector); -- 2.0.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
