diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index e968aeae1d84..ffa5f3f8222d 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -4606,6 +4606,46 @@ static const struct file_operations i915_hpd_storm_ctl_fops = { .write = i915_hpd_storm_ctl_write }; +static int i915_drrs_ctl_set(void *data, u64 val) +{ + struct drm_i915_private *dev_priv = data; + struct drm_device *dev = &dev_priv->drm; + struct intel_crtc *intel_crtc; + struct intel_encoder *encoder; + struct intel_dp *intel_dp; + + if (INTEL_GEN(dev_priv) < 7) + return -ENODEV; + + drm_modeset_lock_all(dev); + for_each_intel_crtc(dev, intel_crtc) { + if (!intel_crtc->base.state->active || + !intel_crtc->config->has_drrs) + continue; + + for_each_encoder_on_crtc(dev, &intel_crtc->base, encoder) { + if (encoder->type != INTEL_OUTPUT_EDP) + continue; + + DRM_DEBUG_DRIVER("Manually %sabling DRRS. %llu\n", + val ? "en" : "dis", val); + + intel_dp = enc_to_intel_dp(&encoder->base); + if (val) + intel_edp_drrs_enable(intel_dp, + intel_crtc->config); + else + intel_edp_drrs_disable(intel_dp, + intel_crtc->config); + } + } + drm_modeset_unlock_all(dev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_drrs_ctl_fops, NULL, i915_drrs_ctl_set, "%llu\n"); + static const struct drm_info_list i915_debugfs_list[] = { {"i915_capabilities", i915_capabilities, 0}, {"i915_gem_objects", i915_gem_object_info, 0}, @@ -4683,7 +4723,8 @@ static const struct i915_debugfs_files { {"i915_dp_test_active", &i915_displayport_test_active_fops}, {"i915_guc_log_control", &i915_guc_log_control_fops}, {"i915_hpd_storm_ctl", &i915_hpd_storm_ctl_fops}, - {"i915_ipc_status", &i915_ipc_status_fops} + {"i915_ipc_status", &i915_ipc_status_fops}, + {"i915_drrs_ctl", &i915_drrs_ctl_fops} }; int i915_debugfs_register(struct drm_i915_private *dev_priv) |