diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_hdcp.c')
-rw-r--r-- | drivers/gpu/drm/i915/display/intel_hdcp.c | 401 |
1 files changed, 295 insertions, 106 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index f57e4dba2873..42202c8bb066 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -9,49 +9,64 @@ */ #include <linux/component.h> +#include <linux/debugfs.h> #include <linux/i2c.h> #include <linux/random.h> #include <drm/display/drm_hdcp_helper.h> +#include <drm/drm_print.h> #include <drm/intel/i915_component.h> -#include "i915_drv.h" #include "i915_reg.h" +#include "i915_utils.h" #include "intel_connector.h" #include "intel_de.h" #include "intel_display_power.h" #include "intel_display_power_well.h" +#include "intel_display_regs.h" +#include "intel_display_rpm.h" #include "intel_display_types.h" +#include "intel_dp_mst.h" #include "intel_hdcp.h" #include "intel_hdcp_gsc.h" +#include "intel_hdcp_gsc_message.h" #include "intel_hdcp_regs.h" #include "intel_hdcp_shim.h" #include "intel_pcode.h" +#include "intel_step.h" + +#define USE_HDCP_GSC(__display) (DISPLAY_VER(__display) >= 14) #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, @@ -63,13 +78,13 @@ static int intel_conn_to_vcpi(struct intel_atomic_state *state, int vcpi = 0; /* For HDMI this is forced to be 0x0. For DP SST also this is 0x0. */ - if (!connector->port) + if (!connector->mst.port) return 0; - mgr = connector->port->mgr; + mgr = connector->mst.port->mgr; drm_modeset_lock(&mgr->base.lock, state->base.acquire_ctx); mst_state = to_drm_dp_mst_topology_state(mgr->base.state); - payload = drm_atomic_get_mst_payload_state(mst_state, connector->port); + payload = drm_atomic_get_mst_payload_state(mst_state, connector->mst.port); if (drm_WARN_ON(mgr->dev, !payload)) goto out; @@ -100,16 +115,16 @@ intel_hdcp_required_content_stream(struct intel_atomic_state *state, struct drm_connector_list_iter conn_iter; struct intel_digital_port *conn_dig_port; struct intel_connector *connector; - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; bool enforce_type0 = false; int k; - if (dig_port->hdcp_auth_status) + if (dig_port->hdcp.auth_status) return 0; data->k = 0; - if (!dig_port->hdcp_mst_type1_capable) + if (!dig_port->hdcp.mst_type1_capable) enforce_type0 = true; drm_connector_list_iter_begin(display->drm, &conn_iter); @@ -129,7 +144,7 @@ intel_hdcp_required_content_stream(struct intel_atomic_state *state, data->k++; /* if there is only one active stream */ - if (dig_port->dp.active_mst_links <= 1) + if (intel_dp_mst_active_streams(&dig_port->dp) <= 1) break; } drm_connector_list_iter_end(&conn_iter); @@ -152,7 +167,7 @@ static int intel_hdcp_prepare_streams(struct intel_atomic_state *state, struct intel_connector *connector) { struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct intel_hdcp *hdcp = &connector->hdcp; if (intel_encoder_is_mst(intel_attached_encoder(connector))) @@ -202,7 +217,7 @@ int intel_hdcp_read_valid_bksv(struct intel_digital_port *dig_port, } /* Is HDCP1.4 capable on Platform and Sink */ -bool intel_hdcp_get_capability(struct intel_connector *connector) +static bool intel_hdcp_get_capability(struct intel_connector *connector) { struct intel_digital_port *dig_port; const struct intel_hdcp_shim *shim = connector->hdcp.shim; @@ -241,8 +256,8 @@ static bool intel_hdcp2_prerequisite(struct intel_connector *connector) return false; /* If MTL+ make sure gsc is loaded and proxy is setup */ - if (intel_hdcp_gsc_cs_required(display)) { - if (!intel_hdcp_gsc_check_status(display)) + if (USE_HDCP_GSC(display)) { + if (!intel_hdcp_gsc_check_status(display->drm)) return false; } @@ -258,7 +273,7 @@ static bool intel_hdcp2_prerequisite(struct intel_connector *connector) } /* Is HDCP2.2 capable on Platform and Sink */ -bool intel_hdcp2_get_capability(struct intel_connector *connector) +static bool intel_hdcp2_get_capability(struct intel_connector *connector) { struct intel_hdcp *hdcp = &connector->hdcp; bool capable = false; @@ -272,9 +287,9 @@ bool intel_hdcp2_get_capability(struct intel_connector *connector) return capable; } -void intel_hdcp_get_remote_capability(struct intel_connector *connector, - bool *hdcp_capable, - bool *hdcp2_capable) +static void intel_hdcp_get_remote_capability(struct intel_connector *connector, + bool *hdcp_capable, + bool *hdcp2_capable) { struct intel_hdcp *hdcp = &connector->hdcp; @@ -327,27 +342,25 @@ static int intel_hdcp_poll_ksv_fifo(struct intel_digital_port *dig_port, static bool hdcp_key_loadable(struct intel_display *display) { - struct drm_i915_private *i915 = to_i915(display->drm); enum i915_power_well_id id; - intel_wakeref_t wakeref; bool enabled = false; /* * On HSW and BDW, Display HW loads the Key as soon as Display resumes. * On all BXT+, SW can load the keys only when the PW#1 is turned on. */ - if (IS_HASWELL(i915) || IS_BROADWELL(i915)) + if (display->platform.haswell || display->platform.broadwell) id = HSW_DISP_PW_GLOBAL; else id = SKL_DISP_PW_1; /* 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); + with_intel_display_rpm(display) + enabled = intel_display_power_well_is_enabled(display, id); /* * Another req for hdcp key loadability is enabled state of pll for - * cdclk. Without active crtc we wont land here. So we are assuming that + * cdclk. Without active crtc we won't land here. So we are assuming that * cdclk is already on. */ @@ -363,7 +376,6 @@ static void intel_hdcp_clear_keys(struct intel_display *display) static int intel_hdcp_load_keys(struct intel_display *display) { - struct drm_i915_private *i915 = to_i915(display->drm); int ret; u32 val; @@ -375,7 +387,7 @@ static int intel_hdcp_load_keys(struct intel_display *display) * On HSW and BDW HW loads the HDCP1.4 Key when Display comes * out of reset. So if Key is not already loaded, its an error state. */ - if (IS_HASWELL(i915) || IS_BROADWELL(i915)) + if (display->platform.haswell || display->platform.broadwell) if (!(intel_de_read(display, HDCP_KEY_STATUS) & HDCP_KEY_LOAD_DONE)) return -ENXIO; @@ -387,8 +399,8 @@ static int intel_hdcp_load_keys(struct intel_display *display) * process from other platforms. These platforms use the GT Driver * Mailbox interface. */ - if (DISPLAY_VER(display) == 9 && !IS_BROXTON(i915)) { - ret = snb_pcode_write(&i915->uncore, SKL_PCODE_LOAD_HDCP_KEYS, 1); + if (DISPLAY_VER(display) == 9 && !display->platform.broxton) { + ret = intel_pcode_write(display->drm, SKL_PCODE_LOAD_HDCP_KEYS, 1); if (ret) { drm_err(display->drm, "Failed to initiate HDCP key load (%d)\n", @@ -994,7 +1006,7 @@ static int _intel_hdcp_disable(struct intel_connector *connector) * don't disable it until it disabled HDCP encryption for * all connectors in MST topology. */ - if (dig_port->num_hdcp_streams > 0) + if (dig_port->hdcp.num_streams > 0) return 0; } @@ -1048,6 +1060,8 @@ 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); @@ -1076,7 +1090,6 @@ static void intel_hdcp_update_value(struct intel_connector *connector, u64 value, bool update_property) { struct intel_display *display = to_intel_display(connector); - struct drm_i915_private *i915 = to_i915(display->drm); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); struct intel_hdcp *hdcp = &connector->hdcp; @@ -1085,19 +1098,19 @@ static void intel_hdcp_update_value(struct intel_connector *connector, if (hdcp->value == value) return; - drm_WARN_ON(display->drm, !mutex_is_locked(&dig_port->hdcp_mutex)); + drm_WARN_ON(display->drm, !mutex_is_locked(&dig_port->hdcp.mutex)); if (hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED) { - if (!drm_WARN_ON(display->drm, dig_port->num_hdcp_streams == 0)) - dig_port->num_hdcp_streams--; + if (!drm_WARN_ON(display->drm, dig_port->hdcp.num_streams == 0)) + dig_port->hdcp.num_streams--; } else if (value == DRM_MODE_CONTENT_PROTECTION_ENABLED) { - dig_port->num_hdcp_streams++; + dig_port->hdcp.num_streams++; } hdcp->value = value; if (update_property) { drm_connector_get(&connector->base); - if (!queue_work(i915->unordered_wq, &hdcp->prop_work)) + if (!queue_work(display->wq.unordered, &hdcp->prop_work)) drm_connector_put(&connector->base); } } @@ -1113,7 +1126,7 @@ static int intel_hdcp_check_link(struct intel_connector *connector) int ret = 0; mutex_lock(&hdcp->mutex); - mutex_lock(&dig_port->hdcp_mutex); + mutex_lock(&dig_port->hdcp.mutex); cpu_transcoder = hdcp->cpu_transcoder; @@ -1158,11 +1171,17 @@ 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(&dig_port->hdcp.mutex); mutex_unlock(&hdcp->mutex); return ret; } @@ -1204,7 +1223,7 @@ hdcp2_prepare_ake_init(struct intel_connector *connector, { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1234,7 +1253,7 @@ hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector, { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1262,7 +1281,7 @@ static int hdcp2_verify_hprime(struct intel_connector *connector, { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1288,7 +1307,7 @@ hdcp2_store_pairing_info(struct intel_connector *connector, { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1315,7 +1334,7 @@ hdcp2_prepare_lc_init(struct intel_connector *connector, { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1342,7 +1361,7 @@ hdcp2_verify_lprime(struct intel_connector *connector, { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1368,7 +1387,7 @@ static int hdcp2_prepare_skey(struct intel_connector *connector, { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1397,7 +1416,7 @@ hdcp2_verify_rep_topology_prepare_ack(struct intel_connector *connector, { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1427,7 +1446,7 @@ hdcp2_verify_mprime(struct intel_connector *connector, { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1451,7 +1470,7 @@ static int hdcp2_authenticate_port(struct intel_connector *connector) { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct i915_hdcp_arbiter *arbiter; int ret; @@ -1488,7 +1507,7 @@ static int hdcp2_close_session(struct intel_connector *connector) } ret = arbiter->ops->close_hdcp_session(arbiter->hdcp_dev, - &dig_port->hdcp_port_data); + &dig_port->hdcp.port_data); mutex_unlock(&display->hdcp.hdcp_mutex); return ret; @@ -1536,9 +1555,9 @@ static int hdcp2_authentication_key_exchange(struct intel_connector *connector) * with a 50ms delay if not hdcp2 capable for DP/DPMST encoders * (dock decides to stop advertising hdcp2 capability for some reason). * The reason being that during suspend resume dock usually keeps the - * HDCP2 registers inaccesible causing AUX error. This wouldn't be a + * HDCP2 registers inaccessible causing AUX error. This wouldn't be a * big problem if the userspace just kept retrying with some delay while - * it continues to play low value content but most userpace applications + * it continues to play low value content but most userspace applications * end up throwing an error when it receives one from KMD. This makes * sure we give the dock and the sink devices to complete its power cycle * and then try HDCP authentication. The values of 10 and delay of 50ms @@ -1676,7 +1695,7 @@ static int _hdcp2_propagate_stream_management_info(struct intel_connector *connector) { struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct intel_hdcp *hdcp = &connector->hdcp; union { struct hdcp2_rep_stream_manage stream_manage; @@ -1754,11 +1773,11 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector) * MST topology is not Type 1 capable if it contains a downstream * device that is only HDCP 1.x or Legacy HDCP 2.0/2.1 compliant. */ - dig_port->hdcp_mst_type1_capable = + dig_port->hdcp.mst_type1_capable = !HDCP_2_2_HDCP1_DEVICE_CONNECTED(rx_info[1]) && !HDCP_2_2_HDCP_2_0_REP_CONNECTED(rx_info[1]); - if (!dig_port->hdcp_mst_type1_capable && hdcp->content_type) { + if (!dig_port->hdcp.mst_type1_capable && hdcp->content_type) { drm_dbg_kms(display->drm, "HDCP1.x or 2.0 Legacy Device Downstream\n"); return -EINVAL; @@ -1854,7 +1873,7 @@ static int hdcp2_enable_stream_encryption(struct intel_connector *connector) { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct intel_hdcp *hdcp = &connector->hdcp; enum transcoder cpu_transcoder = hdcp->cpu_transcoder; enum port port = dig_port->base.port; @@ -1885,7 +1904,7 @@ link_recover: if (hdcp2_deauthenticate_port(connector) < 0) drm_dbg_kms(display->drm, "Port deauth failed.\n"); - dig_port->hdcp_auth_status = false; + dig_port->hdcp.auth_status = false; data->k = 0; return ret; @@ -1925,7 +1944,7 @@ static int hdcp2_enable_encryption(struct intel_connector *connector) port), LINK_ENCRYPTION_STATUS, HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS); - dig_port->hdcp_auth_status = true; + dig_port->hdcp.auth_status = true; return ret; } @@ -2004,7 +2023,7 @@ static int hdcp2_authenticate_and_encrypt(struct intel_atomic_state *state, struct intel_digital_port *dig_port = intel_attached_dig_port(connector); int ret = 0, i, tries = 3; - for (i = 0; i < tries && !dig_port->hdcp_auth_status; i++) { + for (i = 0; i < tries && !dig_port->hdcp.auth_status; i++) { ret = hdcp2_authenticate_sink(connector); if (!ret) { ret = intel_hdcp_prepare_streams(state, connector); @@ -2037,7 +2056,7 @@ static int hdcp2_authenticate_and_encrypt(struct intel_atomic_state *state, drm_dbg_kms(display->drm, "Port deauth failed.\n"); } - if (!ret && !dig_port->hdcp_auth_status) { + if (!ret && !dig_port->hdcp.auth_status) { /* * Ensuring the required 200mSec min time interval between * Session Key Exchange and encryption. @@ -2069,7 +2088,7 @@ 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) { @@ -2091,7 +2110,7 @@ _intel_hdcp2_disable(struct intel_connector *connector, bool hdcp2_link_recovery { struct intel_display *display = to_intel_display(connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; struct intel_hdcp *hdcp = &connector->hdcp; int ret; @@ -2108,7 +2127,7 @@ _intel_hdcp2_disable(struct intel_connector *connector, bool hdcp2_link_recovery drm_dbg_kms(display->drm, "HDCP 2.2 transcoder: %s stream encryption disabled\n", transcoder_name(hdcp->stream_transcoder)); - if (dig_port->num_hdcp_streams > 0 && !hdcp2_link_recovery) + if (dig_port->hdcp.num_streams > 0 && !hdcp2_link_recovery) return 0; } @@ -2118,7 +2137,7 @@ _intel_hdcp2_disable(struct intel_connector *connector, bool hdcp2_link_recovery drm_dbg_kms(display->drm, "Port deauth failed.\n"); connector->hdcp.hdcp2_encrypted = false; - dig_port->hdcp_auth_status = false; + dig_port->hdcp.auth_status = false; data->k = 0; return ret; @@ -2135,7 +2154,7 @@ static int intel_hdcp2_check_link(struct intel_connector *connector) int ret = 0; mutex_lock(&hdcp->mutex); - mutex_lock(&dig_port->hdcp_mutex); + mutex_lock(&dig_port->hdcp.mutex); cpu_transcoder = hdcp->cpu_transcoder; /* hdcp2_check_link is expected only when HDCP2.2 is Enabled */ @@ -2174,6 +2193,19 @@ 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", @@ -2193,7 +2225,7 @@ static int intel_hdcp2_check_link(struct intel_connector *connector) intel_hdcp_update_value(connector, DRM_MODE_CONTENT_PROTECTION_DESIRED, true); out: - mutex_unlock(&dig_port->hdcp_mutex); + mutex_unlock(&dig_port->hdcp.mutex); mutex_unlock(&hdcp->mutex); return ret; } @@ -2205,16 +2237,15 @@ static void intel_hdcp_check_work(struct work_struct *work) check_work); struct intel_connector *connector = intel_hdcp_to_connector(hdcp); struct intel_display *display = to_intel_display(connector); - struct drm_i915_private *i915 = to_i915(display->drm); if (drm_connector_is_unregistered(&connector->base)) return; if (!intel_hdcp2_check_link(connector)) - queue_delayed_work(i915->unordered_wq, &hdcp->check_work, + queue_delayed_work(display->wq.unordered, &hdcp->check_work, DRM_HDCP2_CHECK_PERIOD_MS); else if (!intel_hdcp_check_link(connector)) - queue_delayed_work(i915->unordered_wq, &hdcp->check_work, + queue_delayed_work(display->wq.unordered, &hdcp->check_work, DRM_HDCP_CHECK_PERIOD_MS); } @@ -2275,7 +2306,7 @@ static int initialize_hdcp_port_data(struct intel_connector *connector, const struct intel_hdcp_shim *shim) { struct intel_display *display = to_intel_display(connector); - struct hdcp_port_data *data = &dig_port->hdcp_port_data; + struct hdcp_port_data *data = &dig_port->hdcp.port_data; enum port port = dig_port->base.port; if (DISPLAY_VER(display) < 12) @@ -2311,18 +2342,16 @@ static int initialize_hdcp_port_data(struct intel_connector *connector, static bool is_hdcp2_supported(struct intel_display *display) { - struct drm_i915_private *i915 = to_i915(display->drm); - - if (intel_hdcp_gsc_cs_required(display)) + if (USE_HDCP_GSC(display)) return true; if (!IS_ENABLED(CONFIG_INTEL_MEI_HDCP)) return false; - return (DISPLAY_VER(display) >= 10 || - IS_KABYLAKE(i915) || - IS_COFFEELAKE(i915) || - IS_COMETLAKE(i915)); + return DISPLAY_VER(display) >= 10 || + display->platform.kabylake || + display->platform.coffeelake || + display->platform.cometlake; } void intel_hdcp_component_init(struct intel_display *display) @@ -2337,7 +2366,7 @@ void intel_hdcp_component_init(struct intel_display *display) display->hdcp.comp_added = true; mutex_unlock(&display->hdcp.hdcp_mutex); - if (intel_hdcp_gsc_cs_required(display)) + if (USE_HDCP_GSC(display)) ret = intel_hdcp_gsc_init(display); else ret = component_add_typed(display->drm->dev, &i915_hdcp_ops, @@ -2388,7 +2417,7 @@ int intel_hdcp_init(struct intel_connector *connector, hdcp->hdcp2_supported); if (ret) { hdcp->hdcp2_supported = false; - kfree(dig_port->hdcp_port_data.streams); + kfree(dig_port->hdcp.port_data.streams); return ret; } @@ -2407,7 +2436,6 @@ static int _intel_hdcp_enable(struct intel_atomic_state *state, const struct drm_connector_state *conn_state) { struct intel_display *display = to_intel_display(encoder); - struct drm_i915_private *i915 = to_i915(display->drm); struct intel_connector *connector = to_intel_connector(conn_state->connector); struct intel_digital_port *dig_port = intel_attached_dig_port(connector); @@ -2425,7 +2453,7 @@ static int _intel_hdcp_enable(struct intel_atomic_state *state, } mutex_lock(&hdcp->mutex); - mutex_lock(&dig_port->hdcp_mutex); + mutex_lock(&dig_port->hdcp.mutex); drm_WARN_ON(display->drm, hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED); hdcp->content_type = (u8)conn_state->hdcp_content_type; @@ -2439,20 +2467,23 @@ static int _intel_hdcp_enable(struct intel_atomic_state *state, } if (DISPLAY_VER(display) >= 12) - dig_port->hdcp_port_data.hdcp_transcoder = + dig_port->hdcp.port_data.hdcp_transcoder = intel_get_hdcp_transcoder(hdcp->cpu_transcoder); /* * Considering that HDCP2.2 is more secure than HDCP1.4, If the setup * is capable of HDCP2.2, it is preferred to use HDCP2.2. */ - if (intel_hdcp2_get_capability(connector)) { + if (!hdcp->force_hdcp14 && intel_hdcp2_get_capability(connector)) { ret = _intel_hdcp2_enable(state, connector); if (!ret) check_link_interval = DRM_HDCP2_CHECK_PERIOD_MS; } + if (hdcp->force_hdcp14) + drm_dbg_kms(display->drm, "Forcing HDCP 1.4\n"); + /* * When HDCP2.2 fails and Content Type is not Type1, HDCP1.4 will * be attempted. @@ -2463,14 +2494,14 @@ static int _intel_hdcp_enable(struct intel_atomic_state *state, } if (!ret) { - queue_delayed_work(i915->unordered_wq, &hdcp->check_work, + queue_delayed_work(display->wq.unordered, &hdcp->check_work, check_link_interval); intel_hdcp_update_value(connector, DRM_MODE_CONTENT_PROTECTION_ENABLED, true); } - mutex_unlock(&dig_port->hdcp_mutex); + mutex_unlock(&dig_port->hdcp.mutex); mutex_unlock(&hdcp->mutex); return ret; } @@ -2506,7 +2537,7 @@ int intel_hdcp_disable(struct intel_connector *connector) return -ENOENT; mutex_lock(&hdcp->mutex); - mutex_lock(&dig_port->hdcp_mutex); + mutex_lock(&dig_port->hdcp.mutex); if (hdcp->value == DRM_MODE_CONTENT_PROTECTION_UNDESIRED) goto out; @@ -2519,7 +2550,7 @@ int intel_hdcp_disable(struct intel_connector *connector) ret = _intel_hdcp_disable(connector); out: - mutex_unlock(&dig_port->hdcp_mutex); + mutex_unlock(&dig_port->hdcp.mutex); mutex_unlock(&hdcp->mutex); cancel_delayed_work_sync(&hdcp->check_work); return ret; @@ -2534,7 +2565,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state, to_intel_connector(conn_state->connector); struct intel_hdcp *hdcp = &connector->hdcp; bool content_protection_type_changed, desired_and_not_enabled = false; - struct drm_i915_private *i915 = to_i915(connector->base.dev); + struct intel_display *display = to_intel_display(connector); if (!connector->hdcp.shim) return; @@ -2546,7 +2577,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state, /* * During the HDCP encryption session if Type change is requested, - * disable the HDCP and reenable it with new TYPE value. + * disable the HDCP and re-enable it with new TYPE value. */ if (conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED || @@ -2561,7 +2592,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state, mutex_lock(&hdcp->mutex); hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; drm_connector_get(&connector->base); - if (!queue_work(i915->unordered_wq, &hdcp->prop_work)) + if (!queue_work(display->wq.unordered, &hdcp->prop_work)) drm_connector_put(&connector->base); mutex_unlock(&hdcp->mutex); } @@ -2579,7 +2610,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state, */ if (!desired_and_not_enabled && !content_protection_type_changed) { drm_connector_get(&connector->base); - if (!queue_work(i915->unordered_wq, &hdcp->prop_work)) + if (!queue_work(display->wq.unordered, &hdcp->prop_work)) drm_connector_put(&connector->base); } @@ -2589,6 +2620,15 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state, _intel_hdcp_enable(state, encoder, crtc_state, conn_state); } +void intel_hdcp_cancel_works(struct intel_connector *connector) +{ + if (!connector->hdcp.shim) + return; + + cancel_delayed_work_sync(&connector->hdcp.check_work); + cancel_work_sync(&connector->hdcp.prop_work); +} + void intel_hdcp_component_fini(struct intel_display *display) { mutex_lock(&display->hdcp.hdcp_mutex); @@ -2600,7 +2640,7 @@ void intel_hdcp_component_fini(struct intel_display *display) display->hdcp.comp_added = false; mutex_unlock(&display->hdcp.hdcp_mutex); - if (intel_hdcp_gsc_cs_required(display)) + if (USE_HDCP_GSC(display)) intel_hdcp_gsc_fini(display); else component_del(display->drm->dev, &i915_hdcp_ops); @@ -2694,7 +2734,6 @@ void intel_hdcp_handle_cp_irq(struct intel_connector *connector) { struct intel_hdcp *hdcp = &connector->hdcp; struct intel_display *display = to_intel_display(connector); - struct drm_i915_private *i915 = to_i915(display->drm); if (!hdcp->shim) return; @@ -2702,5 +2741,155 @@ void intel_hdcp_handle_cp_irq(struct intel_connector *connector) atomic_inc(&connector->hdcp.cp_irq_count); wake_up_all(&connector->hdcp.cp_irq_queue); - queue_delayed_work(i915->unordered_wq, &hdcp->check_work, 0); + queue_delayed_work(display->wq.unordered, &hdcp->check_work, 0); +} + +static void __intel_hdcp_info(struct seq_file *m, struct intel_connector *connector, + bool remote_req) +{ + bool hdcp_cap = false, hdcp2_cap = false; + + if (!connector->hdcp.shim) { + seq_puts(m, "No Connector Support"); + goto out; + } + + if (remote_req) { + intel_hdcp_get_remote_capability(connector, &hdcp_cap, &hdcp2_cap); + } else { + hdcp_cap = intel_hdcp_get_capability(connector); + hdcp2_cap = intel_hdcp2_get_capability(connector); + } + + if (hdcp_cap) + seq_puts(m, "HDCP1.4 "); + if (hdcp2_cap) + seq_puts(m, "HDCP2.2 "); + + if (!hdcp_cap && !hdcp2_cap) + seq_puts(m, "None"); + +out: + seq_puts(m, "\n"); +} + +void intel_hdcp_info(struct seq_file *m, struct intel_connector *connector) +{ + seq_puts(m, "\tHDCP version: "); + if (connector->mst.dp) { + __intel_hdcp_info(m, connector, true); + seq_puts(m, "\tMST Hub HDCP version: "); + } + __intel_hdcp_info(m, connector, false); +} + +static int intel_hdcp_sink_capability_show(struct seq_file *m, void *data) +{ + struct intel_connector *connector = m->private; + struct intel_display *display = to_intel_display(connector); + int ret; + + ret = drm_modeset_lock_single_interruptible(&display->drm->mode_config.connection_mutex); + if (ret) + return ret; + + if (!connector->base.encoder || + connector->base.status != connector_status_connected) { + ret = -ENODEV; + goto out; + } + + seq_printf(m, "%s:%d HDCP version: ", connector->base.name, + connector->base.base.id); + __intel_hdcp_info(m, connector, false); + +out: + drm_modeset_unlock(&display->drm->mode_config.connection_mutex); + + return ret; +} +DEFINE_SHOW_ATTRIBUTE(intel_hdcp_sink_capability); + +static ssize_t intel_hdcp_force_14_write(struct file *file, + const char __user *ubuf, + size_t len, loff_t *offp) +{ + struct seq_file *m = file->private_data; + struct intel_connector *connector = m->private; + struct intel_hdcp *hdcp = &connector->hdcp; + bool force_hdcp14 = false; + int ret; + + if (len == 0) + return 0; + + ret = kstrtobool_from_user(ubuf, len, &force_hdcp14); + if (ret < 0) + return ret; + + hdcp->force_hdcp14 = force_hdcp14; + *offp += len; + + return len; +} + +static int intel_hdcp_force_14_show(struct seq_file *m, void *data) +{ + struct intel_connector *connector = m->private; + struct intel_display *display = to_intel_display(connector); + struct intel_encoder *encoder = intel_attached_encoder(connector); + struct intel_hdcp *hdcp = &connector->hdcp; + struct drm_crtc *crtc; + int ret; + + if (!encoder) + return -ENODEV; + + ret = drm_modeset_lock_single_interruptible(&display->drm->mode_config.connection_mutex); + if (ret) + return ret; + + crtc = connector->base.state->crtc; + if (connector->base.status != connector_status_connected || !crtc) { + ret = -ENODEV; + goto out; + } + + seq_printf(m, "%s\n", + str_yes_no(hdcp->force_hdcp14)); +out: + drm_modeset_unlock(&display->drm->mode_config.connection_mutex); + + return ret; +} + +static int intel_hdcp_force_14_open(struct inode *inode, + struct file *file) +{ + return single_open(file, intel_hdcp_force_14_show, + inode->i_private); +} + +static const struct file_operations intel_hdcp_force_14_fops = { + .owner = THIS_MODULE, + .open = intel_hdcp_force_14_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = intel_hdcp_force_14_write +}; + +void intel_hdcp_connector_debugfs_add(struct intel_connector *connector) +{ + struct dentry *root = connector->base.debugfs_entry; + int connector_type = connector->base.connector_type; + + if (connector_type == DRM_MODE_CONNECTOR_DisplayPort || + connector_type == DRM_MODE_CONNECTOR_HDMIA || + connector_type == DRM_MODE_CONNECTOR_HDMIB) { + debugfs_create_file("i915_hdcp_sink_capability", 0444, root, + connector, &intel_hdcp_sink_capability_fops); + debugfs_create_file("i915_force_hdcp14", 0644, root, + connector, &intel_hdcp_force_14_fops); + } } |