diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_hdcp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_hdcp.c | 63 |
1 files changed, 45 insertions, 18 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index f57e4dba2873..1bab7c34a794 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -31,27 +31,33 @@ #define KEY_LOAD_TRIES 5 #define HDCP2_LC_RETRY_CNT 3 -/* WA: 16022217614 */ static void -intel_hdcp_disable_hdcp_line_rekeying(struct intel_encoder *encoder, - struct intel_hdcp *hdcp) +intel_hdcp_adjust_hdcp_line_rekeying(struct intel_encoder *encoder, + struct intel_hdcp *hdcp, + bool enable) { struct intel_display *display = to_intel_display(encoder); + i915_reg_t rekey_reg; + u32 rekey_bit = 0; /* Here we assume HDMI is in TMDS mode of operation */ - if (encoder->type != INTEL_OUTPUT_HDMI) + if (!intel_encoder_is_hdmi(encoder)) return; - if (DISPLAY_VER(display) >= 14) { - if (IS_DISPLAY_VERx100_STEP(display, 1400, STEP_D0, STEP_FOREVER)) - intel_de_rmw(display, MTL_CHICKEN_TRANS(hdcp->cpu_transcoder), - 0, HDCP_LINE_REKEY_DISABLE); - else if (IS_DISPLAY_VERx100_STEP(display, 1401, STEP_B0, STEP_FOREVER) || - IS_DISPLAY_VERx100_STEP(display, 2000, STEP_B0, STEP_FOREVER)) - intel_de_rmw(display, - TRANS_DDI_FUNC_CTL(display, hdcp->cpu_transcoder), - 0, TRANS_DDI_HDCP_LINE_REKEY_DISABLE); + if (DISPLAY_VER(display) >= 30) { + rekey_reg = TRANS_DDI_FUNC_CTL(display, hdcp->cpu_transcoder); + rekey_bit = XE3_TRANS_DDI_HDCP_LINE_REKEY_DISABLE; + } else if (IS_DISPLAY_VERx100_STEP(display, 1401, STEP_B0, STEP_FOREVER) || + IS_DISPLAY_VERx100_STEP(display, 2000, STEP_B0, STEP_FOREVER)) { + rekey_reg = TRANS_DDI_FUNC_CTL(display, hdcp->cpu_transcoder); + rekey_bit = TRANS_DDI_HDCP_LINE_REKEY_DISABLE; + } else if (IS_DISPLAY_VERx100_STEP(display, 1400, STEP_D0, STEP_FOREVER)) { + rekey_reg = CHICKEN_TRANS(display, hdcp->cpu_transcoder); + rekey_bit = HDCP_LINE_REKEY_DISABLE; } + + if (rekey_bit) + intel_de_rmw(display, rekey_reg, rekey_bit, enable ? 0 : rekey_bit); } static int intel_conn_to_vcpi(struct intel_atomic_state *state, @@ -343,7 +349,7 @@ static bool hdcp_key_loadable(struct intel_display *display) /* PG1 (power well #1) needs to be enabled */ with_intel_runtime_pm(&i915->runtime_pm, wakeref) - enabled = intel_display_power_well_is_enabled(i915, id); + enabled = intel_display_power_well_is_enabled(display, id); /* * Another req for hdcp key loadability is enabled state of pll for @@ -1048,6 +1054,8 @@ static int intel_hdcp1_enable(struct intel_connector *connector) return ret; } + intel_hdcp_adjust_hdcp_line_rekeying(connector->encoder, hdcp, true); + /* Incase of authentication failures, HDCP spec expects reauth. */ for (i = 0; i < tries; i++) { ret = intel_hdcp_auth(connector); @@ -1158,9 +1166,15 @@ static int intel_hdcp_check_link(struct intel_connector *connector) goto out; } - intel_hdcp_update_value(connector, - DRM_MODE_CONTENT_PROTECTION_DESIRED, - true); + ret = intel_hdcp1_enable(connector); + if (ret) { + drm_err(display->drm, "Failed to enable hdcp (%d)\n", ret); + intel_hdcp_update_value(connector, + DRM_MODE_CONTENT_PROTECTION_DESIRED, + true); + goto out; + } + out: mutex_unlock(&dig_port->hdcp_mutex); mutex_unlock(&hdcp->mutex); @@ -2069,7 +2083,7 @@ static int _intel_hdcp2_enable(struct intel_atomic_state *state, connector->base.base.id, connector->base.name, hdcp->content_type); - intel_hdcp_disable_hdcp_line_rekeying(connector->encoder, hdcp); + intel_hdcp_adjust_hdcp_line_rekeying(connector->encoder, hdcp, false); ret = hdcp2_authenticate_and_encrypt(state, connector); if (ret) { @@ -2174,6 +2188,19 @@ static int intel_hdcp2_check_link(struct intel_connector *connector) drm_dbg_kms(display->drm, "HDCP2.2 Downstream topology change\n"); + + ret = hdcp2_authenticate_repeater_topology(connector); + if (!ret) { + intel_hdcp_update_value(connector, + DRM_MODE_CONTENT_PROTECTION_ENABLED, + true); + goto out; + } + + drm_dbg_kms(display->drm, + "[CONNECTOR:%d:%s] Repeater topology auth failed.(%d)\n", + connector->base.base.id, connector->base.name, + ret); } else { drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s] HDCP2.2 link failed, retrying auth\n", |