Commits the content protection change of a connector, without crtc modeset. This improves the user experience. Originally proposed by Sean Paul at v3 of HDCP1.4 framework https://patchwork.freedesktop.org/patch/191759/. For some reason this was dropped, but needed for the proper functionality of HDCP encryption. Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx> Suggested-by: Sean Paul <seanpaul@xxxxxxxxxxxx> --- drivers/gpu/drm/i915/intel_ddi.c | 7 ------- drivers/gpu/drm/i915/intel_display.c | 10 ++++++++++ drivers/gpu/drm/i915/intel_drv.h | 5 +++++ drivers/gpu/drm/i915/intel_hdcp.c | 32 ++++++++++++++++++++++++++++---- 4 files changed, 43 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index ca705546a0ab..9cb03c1b0abc 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -3495,11 +3495,6 @@ static void intel_enable_ddi(struct intel_encoder *encoder, intel_enable_ddi_hdmi(encoder, crtc_state, conn_state); else intel_enable_ddi_dp(encoder, crtc_state, conn_state); - - /* Enable hdcp if it's desired */ - if (conn_state->content_protection == - DRM_MODE_CONTENT_PROTECTION_DESIRED) - intel_hdcp_enable(to_intel_connector(conn_state->connector)); } static void intel_disable_ddi_dp(struct intel_encoder *encoder, @@ -3542,8 +3537,6 @@ static void intel_disable_ddi(struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { - intel_hdcp_disable(to_intel_connector(old_conn_state->connector)); - if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI)) intel_disable_ddi_hdmi(encoder, old_crtc_state, old_conn_state); else diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a025efb1d7c6..9b964dabb57c 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -13034,6 +13034,8 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state) struct drm_i915_private *dev_priv = to_i915(dev); struct drm_crtc_state *old_crtc_state, *new_crtc_state; struct intel_crtc_state *new_intel_crtc_state, *old_intel_crtc_state; + struct drm_connector_state *old_conn_state, *new_conn_state; + struct drm_connector *connector; struct drm_crtc *crtc; struct intel_crtc *intel_crtc; u64 put_domains[I915_MAX_PIPES] = {}; @@ -13128,9 +13130,17 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state) } } + for_each_oldnew_connector_in_state(state, connector, old_conn_state, + new_conn_state, i) + intel_hdcp_atomic_pre_commit(connector, old_conn_state, + new_conn_state); + /* Now enable the clocks, plane, pipe, and connectors that we set up. */ dev_priv->display.update_crtcs(state); + for_each_new_connector_in_state(state, connector, new_conn_state, i) + intel_hdcp_atomic_commit(connector, new_conn_state); + /* FIXME: We should call drm_atomic_helper_commit_hw_done() here * already, but still need the state for the delayed optimization. To * fix this: diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 1901d12bacc4..e6b6e920ab01 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -2129,6 +2129,11 @@ static inline void intel_backlight_device_unregister(struct intel_connector *con void intel_hdcp_atomic_check(struct drm_connector *connector, struct drm_connector_state *old_state, struct drm_connector_state *new_state); +void intel_hdcp_atomic_pre_commit(struct drm_connector *connector, + struct drm_connector_state *old_state, + struct drm_connector_state *new_state); +void intel_hdcp_atomic_commit(struct drm_connector *connector, + struct drm_connector_state *new_state); int intel_hdcp_init(struct intel_connector *connector, const struct intel_hdcp_shim *hdcp_shim, bool hdcp2_supported); diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index f38feeadb363..ef127dc7a241 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -1876,7 +1876,6 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, { u64 old_cp = old_state->content_protection; u64 new_cp = new_state->content_protection; - struct drm_crtc_state *crtc_state; if (!new_state->crtc) { /* @@ -1897,10 +1896,35 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, (old_cp == DRM_MODE_CONTENT_PROTECTION_DESIRED && new_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED)) return; +} + +void intel_hdcp_atomic_pre_commit(struct drm_connector *connector, + struct drm_connector_state *old_state, + struct drm_connector_state *new_state) +{ + u64 old_cp = old_state->content_protection; + u64 new_cp = new_state->content_protection; + + /* + * Disable HDCP if the connector is becoming disabled, or if requested + * via the property. + */ + if ((!new_state->crtc && + old_cp != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) || + (new_state->crtc && + old_cp != DRM_MODE_CONTENT_PROTECTION_UNDESIRED && + new_cp == DRM_MODE_CONTENT_PROTECTION_UNDESIRED)) + intel_hdcp_disable(to_intel_connector(connector)); +} + +void intel_hdcp_atomic_commit(struct drm_connector *connector, + struct drm_connector_state *new_state) +{ + u64 new_cp = new_state->content_protection; - crtc_state = drm_atomic_get_new_crtc_state(new_state->state, - new_state->crtc); - crtc_state->mode_changed = true; + /* Enable hdcp if it's desired */ + if (new_state->crtc && new_cp == DRM_MODE_CONTENT_PROTECTION_DESIRED) + intel_hdcp_enable(to_intel_connector(connector)); } /* Handles the CP_IRQ raised from the DP HDCP sink */ -- 2.7.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
