diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_hdcp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_hdcp.c | 299 |
1 files changed, 205 insertions, 94 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index 27bd7276a82d..0fdbd39f6641 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -1,9 +1,11 @@ /* SPDX-License-Identifier: MIT */ /* * Copyright (C) 2017 Google, Inc. + * Copyright _ 2017-2019, Intel Corporation. * * Authors: * Sean Paul <seanpaul@chromium.org> + * Ramalingam C <ramalingam.c@intel.com> */ #include <linux/component.h> @@ -14,9 +16,11 @@ #include <drm/i915_component.h> #include "i915_reg.h" -#include "intel_drv.h" +#include "intel_display_power.h" +#include "intel_display_types.h" #include "intel_hdcp.h" #include "intel_sideband.h" +#include "intel_connector.h" #define KEY_LOAD_TRIES 5 #define ENCRYPT_STATUS_CHANGE_TIMEOUT_MS 50 @@ -104,24 +108,20 @@ bool intel_hdcp2_capable(struct intel_connector *connector) return capable; } -static inline bool intel_hdcp_in_use(struct intel_connector *connector) +static inline +bool intel_hdcp_in_use(struct drm_i915_private *dev_priv, + enum transcoder cpu_transcoder, enum port port) { - struct drm_i915_private *dev_priv = to_i915(connector->base.dev); - enum port port = connector->encoder->port; - u32 reg; - - reg = I915_READ(PORT_HDCP_STATUS(port)); - return reg & HDCP_STATUS_ENC; + return I915_READ(HDCP_STATUS(dev_priv, cpu_transcoder, port)) & + HDCP_STATUS_ENC; } -static inline bool intel_hdcp2_in_use(struct intel_connector *connector) +static inline +bool intel_hdcp2_in_use(struct drm_i915_private *dev_priv, + enum transcoder cpu_transcoder, enum port port) { - struct drm_i915_private *dev_priv = to_i915(connector->base.dev); - enum port port = connector->encoder->port; - u32 reg; - - reg = I915_READ(HDCP2_STATUS_DDI(port)); - return reg & LINK_ENCRYPTION_STATUS; + return I915_READ(HDCP2_STATUS(dev_priv, cpu_transcoder, port)) & + LINK_ENCRYPTION_STATUS; } static int intel_hdcp_poll_ksv_fifo(struct intel_digital_port *intel_dig_port, @@ -244,8 +244,7 @@ static int intel_hdcp_load_keys(struct drm_i915_private *dev_priv) static int intel_write_sha_text(struct drm_i915_private *dev_priv, u32 sha_text) { I915_WRITE(HDCP_SHA_TEXT, sha_text); - if (intel_wait_for_register(&dev_priv->uncore, HDCP_REP_CTL, - HDCP_SHA1_READY, HDCP_SHA1_READY, 1)) { + if (intel_de_wait_for_set(dev_priv, HDCP_REP_CTL, HDCP_SHA1_READY, 1)) { DRM_ERROR("Timed out waiting for SHA1 ready\n"); return -ETIMEDOUT; } @@ -253,9 +252,29 @@ static int intel_write_sha_text(struct drm_i915_private *dev_priv, u32 sha_text) } static -u32 intel_hdcp_get_repeater_ctl(struct intel_digital_port *intel_dig_port) +u32 intel_hdcp_get_repeater_ctl(struct drm_i915_private *dev_priv, + enum transcoder cpu_transcoder, enum port port) { - enum port port = intel_dig_port->base.port; + if (INTEL_GEN(dev_priv) >= 12) { + switch (cpu_transcoder) { + case TRANSCODER_A: + return HDCP_TRANSA_REP_PRESENT | + HDCP_TRANSA_SHA1_M0; + case TRANSCODER_B: + return HDCP_TRANSB_REP_PRESENT | + HDCP_TRANSB_SHA1_M0; + case TRANSCODER_C: + return HDCP_TRANSC_REP_PRESENT | + HDCP_TRANSC_SHA1_M0; + case TRANSCODER_D: + return HDCP_TRANSD_REP_PRESENT | + HDCP_TRANSD_SHA1_M0; + default: + DRM_ERROR("Unknown transcoder %d\n", cpu_transcoder); + return -EINVAL; + } + } + switch (port) { case PORT_A: return HDCP_DDIA_REP_PRESENT | HDCP_DDIA_SHA1_M0; @@ -268,18 +287,20 @@ u32 intel_hdcp_get_repeater_ctl(struct intel_digital_port *intel_dig_port) case PORT_E: return HDCP_DDIE_REP_PRESENT | HDCP_DDIE_SHA1_M0; default: - break; + DRM_ERROR("Unknown port %d\n", port); + return -EINVAL; } - DRM_ERROR("Unknown port %d\n", port); - return -EINVAL; } static -int intel_hdcp_validate_v_prime(struct intel_digital_port *intel_dig_port, +int intel_hdcp_validate_v_prime(struct intel_connector *connector, const struct intel_hdcp_shim *shim, u8 *ksv_fifo, u8 num_downstream, u8 *bstatus) { + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); struct drm_i915_private *dev_priv; + enum transcoder cpu_transcoder = connector->hdcp.cpu_transcoder; + enum port port = intel_dig_port->base.port; u32 vprime, sha_text, sha_leftovers, rep_ctl; int ret, i, j, sha_idx; @@ -306,7 +327,7 @@ int intel_hdcp_validate_v_prime(struct intel_digital_port *intel_dig_port, sha_idx = 0; sha_text = 0; sha_leftovers = 0; - rep_ctl = intel_hdcp_get_repeater_ctl(intel_dig_port); + rep_ctl = intel_hdcp_get_repeater_ctl(dev_priv, cpu_transcoder, port); I915_WRITE(HDCP_REP_CTL, rep_ctl | HDCP_SHA1_TEXT_32); for (i = 0; i < num_downstream; i++) { unsigned int sha_empty; @@ -475,9 +496,8 @@ int intel_hdcp_validate_v_prime(struct intel_digital_port *intel_dig_port, /* Tell the HW we're done with the hash and wait for it to ACK */ I915_WRITE(HDCP_REP_CTL, rep_ctl | HDCP_SHA1_COMPLETE_HASH); - if (intel_wait_for_register(&dev_priv->uncore, HDCP_REP_CTL, - HDCP_SHA1_COMPLETE, - HDCP_SHA1_COMPLETE, 1)) { + if (intel_de_wait_for_set(dev_priv, HDCP_REP_CTL, + HDCP_SHA1_COMPLETE, 1)) { DRM_ERROR("Timed out waiting for SHA1 complete\n"); return -ETIMEDOUT; } @@ -523,12 +543,16 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector) * authentication. */ num_downstream = DRM_HDCP_NUM_DOWNSTREAM(bstatus[0]); - if (num_downstream == 0) + if (num_downstream == 0) { + DRM_DEBUG_KMS("Repeater with zero downstream devices\n"); return -EINVAL; + } ksv_fifo = kcalloc(DRM_HDCP_KSV_LEN, num_downstream, GFP_KERNEL); - if (!ksv_fifo) + if (!ksv_fifo) { + DRM_DEBUG_KMS("Out of mem: ksv_fifo\n"); return -ENOMEM; + } ret = shim->read_ksv_fifo(intel_dig_port, num_downstream, ksv_fifo); if (ret) @@ -545,7 +569,7 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector) * V prime atleast twice. */ for (i = 0; i < tries; i++) { - ret = intel_hdcp_validate_v_prime(intel_dig_port, shim, + ret = intel_hdcp_validate_v_prime(connector, shim, ksv_fifo, num_downstream, bstatus); if (!ret) @@ -573,6 +597,7 @@ static int intel_hdcp_auth(struct intel_connector *connector) struct drm_device *dev = connector->base.dev; const struct intel_hdcp_shim *shim = hdcp->shim; struct drm_i915_private *dev_priv; + enum transcoder cpu_transcoder = connector->hdcp.cpu_transcoder; enum port port; unsigned long r0_prime_gen_start; int ret, i, tries = 2; @@ -612,19 +637,21 @@ static int intel_hdcp_auth(struct intel_connector *connector) /* Initialize An with 2 random values and acquire it */ for (i = 0; i < 2; i++) - I915_WRITE(PORT_HDCP_ANINIT(port), get_random_u32()); - I915_WRITE(PORT_HDCP_CONF(port), HDCP_CONF_CAPTURE_AN); + I915_WRITE(HDCP_ANINIT(dev_priv, cpu_transcoder, port), + get_random_u32()); + I915_WRITE(HDCP_CONF(dev_priv, cpu_transcoder, port), + HDCP_CONF_CAPTURE_AN); /* Wait for An to be acquired */ - if (intel_wait_for_register(&dev_priv->uncore, PORT_HDCP_STATUS(port), - HDCP_STATUS_AN_READY, - HDCP_STATUS_AN_READY, 1)) { + if (intel_de_wait_for_set(dev_priv, + HDCP_STATUS(dev_priv, cpu_transcoder, port), + HDCP_STATUS_AN_READY, 1)) { DRM_ERROR("Timed out waiting for An\n"); return -ETIMEDOUT; } - an.reg[0] = I915_READ(PORT_HDCP_ANLO(port)); - an.reg[1] = I915_READ(PORT_HDCP_ANHI(port)); + an.reg[0] = I915_READ(HDCP_ANLO(dev_priv, cpu_transcoder, port)); + an.reg[1] = I915_READ(HDCP_ANHI(dev_priv, cpu_transcoder, port)); ret = shim->write_an_aksv(intel_dig_port, an.shim); if (ret) return ret; @@ -642,24 +669,26 @@ static int intel_hdcp_auth(struct intel_connector *connector) return -EPERM; } - I915_WRITE(PORT_HDCP_BKSVLO(port), bksv.reg[0]); - I915_WRITE(PORT_HDCP_BKSVHI(port), bksv.reg[1]); + I915_WRITE(HDCP_BKSVLO(dev_priv, cpu_transcoder, port), bksv.reg[0]); + I915_WRITE(HDCP_BKSVHI(dev_priv, cpu_transcoder, port), bksv.reg[1]); ret = shim->repeater_present(intel_dig_port, &repeater_present); if (ret) return ret; if (repeater_present) I915_WRITE(HDCP_REP_CTL, - intel_hdcp_get_repeater_ctl(intel_dig_port)); + intel_hdcp_get_repeater_ctl(dev_priv, cpu_transcoder, + port)); ret = shim->toggle_signalling(intel_dig_port, true); if (ret) return ret; - I915_WRITE(PORT_HDCP_CONF(port), HDCP_CONF_AUTH_AND_ENC); + I915_WRITE(HDCP_CONF(dev_priv, cpu_transcoder, port), + HDCP_CONF_AUTH_AND_ENC); /* Wait for R0 ready */ - if (wait_for(I915_READ(PORT_HDCP_STATUS(port)) & + if (wait_for(I915_READ(HDCP_STATUS(dev_priv, cpu_transcoder, port)) & (HDCP_STATUS_R0_READY | HDCP_STATUS_ENC), 1)) { DRM_ERROR("Timed out waiting for R0 ready\n"); return -ETIMEDOUT; @@ -687,24 +716,27 @@ static int intel_hdcp_auth(struct intel_connector *connector) ret = shim->read_ri_prime(intel_dig_port, ri.shim); if (ret) return ret; - I915_WRITE(PORT_HDCP_RPRIME(port), ri.reg); + I915_WRITE(HDCP_RPRIME(dev_priv, cpu_transcoder, port), ri.reg); /* Wait for Ri prime match */ - if (!wait_for(I915_READ(PORT_HDCP_STATUS(port)) & + if (!wait_for(I915_READ(HDCP_STATUS(dev_priv, cpu_transcoder, + port)) & (HDCP_STATUS_RI_MATCH | HDCP_STATUS_ENC), 1)) break; } if (i == tries) { DRM_DEBUG_KMS("Timed out waiting for Ri prime match (%x)\n", - I915_READ(PORT_HDCP_STATUS(port))); + I915_READ(HDCP_STATUS(dev_priv, cpu_transcoder, + port))); return -ETIMEDOUT; } /* Wait for encryption confirmation */ - if (intel_wait_for_register(&dev_priv->uncore, PORT_HDCP_STATUS(port), - HDCP_STATUS_ENC, HDCP_STATUS_ENC, - ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) { + if (intel_de_wait_for_set(dev_priv, + HDCP_STATUS(dev_priv, cpu_transcoder, port), + HDCP_STATUS_ENC, + ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) { DRM_ERROR("Timed out waiting for encryption\n"); return -ETIMEDOUT; } @@ -727,16 +759,17 @@ static int _intel_hdcp_disable(struct intel_connector *connector) struct drm_i915_private *dev_priv = connector->base.dev->dev_private; struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); enum port port = intel_dig_port->base.port; + enum transcoder cpu_transcoder = hdcp->cpu_transcoder; int ret; DRM_DEBUG_KMS("[%s:%d] HDCP is being disabled...\n", connector->base.name, connector->base.base.id); hdcp->hdcp_encrypted = false; - I915_WRITE(PORT_HDCP_CONF(port), 0); - if (intel_wait_for_register(&dev_priv->uncore, - PORT_HDCP_STATUS(port), ~0, 0, - ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) { + I915_WRITE(HDCP_CONF(dev_priv, cpu_transcoder, port), 0); + if (intel_de_wait_for_clear(dev_priv, + HDCP_STATUS(dev_priv, cpu_transcoder, port), + ~0, ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) { DRM_ERROR("Failed to disable HDCP, timeout clearing status\n"); return -ETIMEDOUT; } @@ -807,9 +840,11 @@ static int intel_hdcp_check_link(struct intel_connector *connector) struct drm_i915_private *dev_priv = connector->base.dev->dev_private; struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); enum port port = intel_dig_port->base.port; + enum transcoder cpu_transcoder; int ret = 0; mutex_lock(&hdcp->mutex); + cpu_transcoder = hdcp->cpu_transcoder; /* Check_link valid only when HDCP1.4 is enabled */ if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_ENABLED || @@ -818,10 +853,11 @@ static int intel_hdcp_check_link(struct intel_connector *connector) goto out; } - if (WARN_ON(!intel_hdcp_in_use(connector))) { + if (WARN_ON(!intel_hdcp_in_use(dev_priv, cpu_transcoder, port))) { DRM_ERROR("%s:%d HDCP link stopped encryption,%x\n", connector->base.name, connector->base.base.id, - I915_READ(PORT_HDCP_STATUS(port))); + I915_READ(HDCP_STATUS(dev_priv, cpu_transcoder, + port))); ret = -ENXIO; hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; schedule_work(&hdcp->prop_work); @@ -866,7 +902,6 @@ static void intel_hdcp_prop_work(struct work_struct *work) prop_work); struct intel_connector *connector = intel_hdcp_to_connector(hdcp); struct drm_device *dev = connector->base.dev; - struct drm_connector_state *state; drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); mutex_lock(&hdcp->mutex); @@ -876,10 +911,9 @@ static void intel_hdcp_prop_work(struct work_struct *work) * those to UNDESIRED is handled by core. If value == UNDESIRED, * we're running just after hdcp has been disabled, so just exit */ - if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { - state = connector->base.state; - state->content_protection = hdcp->value; - } + if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) + drm_hdcp_update_content_protection(&connector->base, + hdcp->value); mutex_unlock(&hdcp->mutex); drm_modeset_unlock(&dev->mode_config.connection_mutex); @@ -888,7 +922,7 @@ static void intel_hdcp_prop_work(struct work_struct *work) bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port) { /* PORT E doesn't have HDCP, and PORT F is disabled */ - return INTEL_GEN(dev_priv) >= 9 && port < PORT_E; + return INTEL_INFO(dev_priv)->display.has_hdcp && port < PORT_E; } static int @@ -1207,8 +1241,10 @@ static int hdcp2_authentication_key_exchange(struct intel_connector *connector) if (ret < 0) return ret; - if (msgs.send_cert.rx_caps[0] != HDCP_2_2_RX_CAPS_VERSION_VAL) + if (msgs.send_cert.rx_caps[0] != HDCP_2_2_RX_CAPS_VERSION_VAL) { + DRM_DEBUG_KMS("cert.rx_caps dont claim HDCP2.2\n"); return -EINVAL; + } hdcp->is_repeater = HDCP_2_2_RX_REPEATER(msgs.send_cert.rx_caps[2]); @@ -1492,10 +1528,11 @@ static int hdcp2_enable_encryption(struct intel_connector *connector) struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_hdcp *hdcp = &connector->hdcp; enum port port = connector->encoder->port; + enum transcoder cpu_transcoder = hdcp->cpu_transcoder; int ret; - WARN_ON(I915_READ(HDCP2_STATUS_DDI(port)) & LINK_ENCRYPTION_STATUS); - + WARN_ON(I915_READ(HDCP2_STATUS(dev_priv, cpu_transcoder, port)) & + LINK_ENCRYPTION_STATUS); if (hdcp->shim->toggle_signalling) { ret = hdcp->shim->toggle_signalling(intel_dig_port, true); if (ret) { @@ -1505,17 +1542,20 @@ static int hdcp2_enable_encryption(struct intel_connector *connector) } } - if (I915_READ(HDCP2_STATUS_DDI(port)) & LINK_AUTH_STATUS) { + if (I915_READ(HDCP2_STATUS(dev_priv, cpu_transcoder, port)) & + LINK_AUTH_STATUS) { /* Link is Authenticated. Now set for Encryption */ - I915_WRITE(HDCP2_CTL_DDI(port), - I915_READ(HDCP2_CTL_DDI(port)) | + I915_WRITE(HDCP2_CTL(dev_priv, cpu_transcoder, port), + I915_READ(HDCP2_CTL(dev_priv, cpu_transcoder, + port)) | CTL_LINK_ENCRYPTION_REQ); } - ret = intel_wait_for_register(&dev_priv->uncore, HDCP2_STATUS_DDI(port), - LINK_ENCRYPTION_STATUS, - LINK_ENCRYPTION_STATUS, - ENCRYPT_STATUS_CHANGE_TIMEOUT_MS); + ret = intel_de_wait_for_set(dev_priv, + HDCP2_STATUS(dev_priv, cpu_transcoder, + port), + LINK_ENCRYPTION_STATUS, + ENCRYPT_STATUS_CHANGE_TIMEOUT_MS); return ret; } @@ -1526,15 +1566,20 @@ static int hdcp2_disable_encryption(struct intel_connector *connector) struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_hdcp *hdcp = &connector->hdcp; enum port port = connector->encoder->port; + enum transcoder cpu_transcoder = hdcp->cpu_transcoder; int ret; - WARN_ON(!(I915_READ(HDCP2_STATUS_DDI(port)) & LINK_ENCRYPTION_STATUS)); + WARN_ON(!(I915_READ(HDCP2_STATUS(dev_priv, cpu_transcoder, port)) & + LINK_ENCRYPTION_STATUS)); - I915_WRITE(HDCP2_CTL_DDI(port), - I915_READ(HDCP2_CTL_DDI(port)) & ~CTL_LINK_ENCRYPTION_REQ); + I915_WRITE(HDCP2_CTL(dev_priv, cpu_transcoder, port), + I915_READ(HDCP2_CTL(dev_priv, cpu_transcoder, port)) & + ~CTL_LINK_ENCRYPTION_REQ); - ret = intel_wait_for_register(&dev_priv->uncore, HDCP2_STATUS_DDI(port), - LINK_ENCRYPTION_STATUS, 0x0, + ret = intel_de_wait_for_clear(dev_priv, + HDCP2_STATUS(dev_priv, cpu_transcoder, + port), + LINK_ENCRYPTION_STATUS, ENCRYPT_STATUS_CHANGE_TIMEOUT_MS); if (ret == -ETIMEDOUT) DRM_DEBUG_KMS("Disable Encryption Timedout"); @@ -1632,9 +1677,11 @@ static int intel_hdcp2_check_link(struct intel_connector *connector) struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_hdcp *hdcp = &connector->hdcp; enum port port = connector->encoder->port; + enum transcoder cpu_transcoder; int ret = 0; mutex_lock(&hdcp->mutex); + cpu_transcoder = hdcp->cpu_transcoder; /* hdcp2_check_link is expected only when HDCP2.2 is Enabled */ if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_ENABLED || @@ -1643,9 +1690,10 @@ static int intel_hdcp2_check_link(struct intel_connector *connector) goto out; } - if (WARN_ON(!intel_hdcp2_in_use(connector))) { + if (WARN_ON(!intel_hdcp2_in_use(dev_priv, cpu_transcoder, port))) { DRM_ERROR("HDCP2.2 link stopped the encryption, %x\n", - I915_READ(HDCP2_STATUS_DDI(port))); + I915_READ(HDCP2_STATUS(dev_priv, cpu_transcoder, + port))); ret = -ENXIO; hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; schedule_work(&hdcp->prop_work); @@ -1749,14 +1797,56 @@ static const struct component_ops i915_hdcp_component_ops = { .unbind = i915_hdcp_component_unbind, }; -static inline int initialize_hdcp_port_data(struct intel_connector *connector) +static inline +enum mei_fw_ddi intel_get_mei_fw_ddi_index(enum port port) { + switch (port) { + case PORT_A: + return MEI_DDI_A; + case PORT_B ... PORT_F: + return (enum mei_fw_ddi)port; + default: + return MEI_DDI_INVALID_PORT; + } +} + +static inline +enum mei_fw_tc intel_get_mei_fw_tc(enum transcoder cpu_transcoder) +{ + switch (cpu_transcoder) { + case TRANSCODER_A ... TRANSCODER_D: + return (enum mei_fw_tc)(cpu_transcoder | 0x10); + default: /* eDP, DSI TRANSCODERS are non HDCP capable */ + return MEI_INVALID_TRANSCODER; + } +} + +static inline int initialize_hdcp_port_data(struct intel_connector *connector, + const struct intel_hdcp_shim *shim) +{ + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_hdcp *hdcp = &connector->hdcp; struct hdcp_port_data *data = &hdcp->port_data; - data->port = connector->encoder->port; + if (INTEL_GEN(dev_priv) < 12) + data->fw_ddi = + intel_get_mei_fw_ddi_index(connector->encoder->port); + else + /* + * As per ME FW API expectation, for GEN 12+, fw_ddi is filled + * with zero(INVALID PORT index). + */ + data->fw_ddi = MEI_DDI_INVALID_PORT; + + /* + * As associated transcoder is set and modified at modeset, here fw_tc + * is initialized to zero (invalid transcoder index). This will be + * retained for <Gen12 forever. + */ + data->fw_tc = MEI_INVALID_TRANSCODER; + data->port_type = (u8)HDCP_PORT_TYPE_INTEGRATED; - data->protocol = (u8)hdcp->shim->protocol; + data->protocol = (u8)shim->protocol; data->k = 1; if (!data->streams) @@ -1780,7 +1870,7 @@ static bool is_hdcp2_supported(struct drm_i915_private *dev_priv) return false; return (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv) || - IS_KABYLAKE(dev_priv)); + IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)); } void intel_hdcp_component_init(struct drm_i915_private *dev_priv) @@ -1806,12 +1896,13 @@ void intel_hdcp_component_init(struct drm_i915_private *dev_priv) } } -static void intel_hdcp2_init(struct intel_connector *connector) +static void intel_hdcp2_init(struct intel_connector *connector, + const struct intel_hdcp_shim *shim) { struct intel_hdcp *hdcp = &connector->hdcp; int ret; - ret = initialize_hdcp_port_data(connector); + ret = initialize_hdcp_port_data(connector, shim); if (ret) { DRM_DEBUG_KMS("Mei hdcp data init failed\n"); return; @@ -1830,24 +1921,31 @@ int intel_hdcp_init(struct intel_connector *connector, if (!shim) return -EINVAL; - ret = drm_connector_attach_content_protection_property(&connector->base); - if (ret) + if (is_hdcp2_supported(dev_priv)) + intel_hdcp2_init(connector, shim); + + ret = + drm_connector_attach_content_protection_property(&connector->base, + hdcp->hdcp2_supported); + if (ret) { + hdcp->hdcp2_supported = false; + kfree(hdcp->port_data.streams); return ret; + } hdcp->shim = shim; mutex_init(&hdcp->mutex); INIT_DELAYED_WORK(&hdcp->check_work, intel_hdcp_check_work); INIT_WORK(&hdcp->prop_work, intel_hdcp_prop_work); - - if (is_hdcp2_supported(dev_priv)) - intel_hdcp2_init(connector); init_waitqueue_head(&hdcp->cp_irq_queue); return 0; } -int intel_hdcp_enable(struct intel_connector *connector) +int intel_hdcp_enable(struct intel_connector *connector, + enum transcoder cpu_transcoder, u8 content_type) { + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_hdcp *hdcp = &connector->hdcp; unsigned long check_link_interval = DRM_HDCP_CHECK_PERIOD_MS; int ret = -EINVAL; @@ -1857,6 +1955,12 @@ int intel_hdcp_enable(struct intel_connector *connector) mutex_lock(&hdcp->mutex); WARN_ON(hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED); + hdcp->content_type = content_type; + + if (INTEL_GEN(dev_priv) >= 12) { + hdcp->cpu_transcoder = cpu_transcoder; + hdcp->port_data.fw_tc = intel_get_mei_fw_tc(cpu_transcoder); + } /* * Considering that HDCP2.2 is more secure than HDCP1.4, If the setup @@ -1868,8 +1972,12 @@ int intel_hdcp_enable(struct intel_connector *connector) check_link_interval = DRM_HDCP2_CHECK_PERIOD_MS; } - /* When HDCP2.2 fails, HDCP1.4 will be attempted */ - if (ret && intel_hdcp_capable(connector)) { + /* + * When HDCP2.2 fails and Content Type is not Type1, HDCP1.4 will + * be attempted. + */ + if (ret && intel_hdcp_capable(connector) && + hdcp->content_type != DRM_MODE_HDCP_CONTENT_TYPE1) { ret = _intel_hdcp_enable(connector); } @@ -1951,12 +2059,15 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, /* * Nothing to do if the state didn't change, or HDCP was activated since - * the last commit + * the last commit. And also no change in hdcp content type. */ if (old_cp == new_cp || (old_cp == DRM_MODE_CONTENT_PROTECTION_DESIRED && - new_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED)) - return; + new_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED)) { + if (old_state->hdcp_content_type == + new_state->hdcp_content_type) + return; + } crtc_state = drm_atomic_get_new_crtc_state(new_state->state, new_state->crtc); |
