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path: root/drivers/gpu/drm/i915/display/intel_hdcp.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_hdcp.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_hdcp.c135
1 files changed, 80 insertions, 55 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 30e0a3aa9d57..ee0f27ea2810 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -43,6 +43,7 @@ static
int intel_hdcp_read_valid_bksv(struct intel_digital_port *intel_dig_port,
const struct intel_hdcp_shim *shim, u8 *bksv)
{
+ struct drm_i915_private *i915 = to_i915(intel_dig_port->base.base.dev);
int ret, i, tries = 2;
/* HDCP spec states that we must retry the bksv if it is invalid */
@@ -54,7 +55,7 @@ int intel_hdcp_read_valid_bksv(struct intel_digital_port *intel_dig_port,
break;
}
if (i == tries) {
- DRM_DEBUG_KMS("Bksv is invalid\n");
+ drm_dbg_kms(&i915->drm, "Bksv is invalid\n");
return -ENODEV;
}
@@ -485,8 +486,8 @@ int intel_hdcp_validate_v_prime(struct intel_connector *connector,
return ret;
sha_idx += sizeof(sha_text);
} else {
- DRM_DEBUG_KMS("Invalid number of leftovers %d\n",
- sha_leftovers);
+ drm_dbg_kms(&dev_priv->drm, "Invalid number of leftovers %d\n",
+ sha_leftovers);
return -EINVAL;
}
@@ -514,11 +515,11 @@ int intel_hdcp_validate_v_prime(struct intel_connector *connector,
rep_ctl | HDCP_SHA1_COMPLETE_HASH);
if (intel_de_wait_for_set(dev_priv, HDCP_REP_CTL,
HDCP_SHA1_COMPLETE, 1)) {
- DRM_ERROR("Timed out waiting for SHA1 complete\n");
+ drm_err(&dev_priv->drm, "Timed out waiting for SHA1 complete\n");
return -ETIMEDOUT;
}
if (!(intel_de_read(dev_priv, HDCP_REP_CTL) & HDCP_SHA1_V_MATCH)) {
- DRM_DEBUG_KMS("SHA-1 mismatch, HDCP failed\n");
+ drm_dbg_kms(&dev_priv->drm, "SHA-1 mismatch, HDCP failed\n");
return -ENXIO;
}
@@ -537,7 +538,8 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
ret = intel_hdcp_poll_ksv_fifo(intel_dig_port, shim);
if (ret) {
- DRM_DEBUG_KMS("KSV list failed to become ready (%d)\n", ret);
+ drm_dbg_kms(&dev_priv->drm,
+ "KSV list failed to become ready (%d)\n", ret);
return ret;
}
@@ -547,7 +549,7 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
if (DRM_HDCP_MAX_DEVICE_EXCEEDED(bstatus[0]) ||
DRM_HDCP_MAX_CASCADE_EXCEEDED(bstatus[1])) {
- DRM_DEBUG_KMS("Max Topology Limit Exceeded\n");
+ drm_dbg_kms(&dev_priv->drm, "Max Topology Limit Exceeded\n");
return -EPERM;
}
@@ -560,13 +562,14 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
*/
num_downstream = DRM_HDCP_NUM_DOWNSTREAM(bstatus[0]);
if (num_downstream == 0) {
- DRM_DEBUG_KMS("Repeater with zero downstream devices\n");
+ drm_dbg_kms(&dev_priv->drm,
+ "Repeater with zero downstream devices\n");
return -EINVAL;
}
ksv_fifo = kcalloc(DRM_HDCP_KSV_LEN, num_downstream, GFP_KERNEL);
if (!ksv_fifo) {
- DRM_DEBUG_KMS("Out of mem: ksv_fifo\n");
+ drm_dbg_kms(&dev_priv->drm, "Out of mem: ksv_fifo\n");
return -ENOMEM;
}
@@ -576,7 +579,7 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
if (drm_hdcp_check_ksvs_revoked(&dev_priv->drm, ksv_fifo,
num_downstream)) {
- DRM_ERROR("Revoked Ksv(s) in ksv_fifo\n");
+ drm_err(&dev_priv->drm, "Revoked Ksv(s) in ksv_fifo\n");
ret = -EPERM;
goto err;
}
@@ -594,12 +597,13 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
}
if (i == tries) {
- DRM_DEBUG_KMS("V Prime validation failed.(%d)\n", ret);
+ drm_dbg_kms(&dev_priv->drm,
+ "V Prime validation failed.(%d)\n", ret);
goto err;
}
- DRM_DEBUG_KMS("HDCP is enabled (%d downstream devices)\n",
- num_downstream);
+ drm_dbg_kms(&dev_priv->drm, "HDCP is enabled (%d downstream devices)\n",
+ num_downstream);
ret = 0;
err:
kfree(ksv_fifo);
@@ -642,7 +646,8 @@ static int intel_hdcp_auth(struct intel_connector *connector)
if (ret)
return ret;
if (!hdcp_capable) {
- DRM_DEBUG_KMS("Panel is not HDCP capable\n");
+ drm_dbg_kms(&dev_priv->drm,
+ "Panel is not HDCP capable\n");
return -EINVAL;
}
}
@@ -659,7 +664,7 @@ static int intel_hdcp_auth(struct intel_connector *connector)
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");
+ drm_err(&dev_priv->drm, "Timed out waiting for An\n");
return -ETIMEDOUT;
}
@@ -680,7 +685,7 @@ static int intel_hdcp_auth(struct intel_connector *connector)
return ret;
if (drm_hdcp_check_ksvs_revoked(&dev_priv->drm, bksv.shim, 1)) {
- DRM_ERROR("BKSV is revoked\n");
+ drm_err(&dev_priv->drm, "BKSV is revoked\n");
return -EPERM;
}
@@ -706,7 +711,7 @@ static int intel_hdcp_auth(struct intel_connector *connector)
/* Wait for R0 ready */
if (wait_for(intel_de_read(dev_priv, HDCP_STATUS(dev_priv, cpu_transcoder, port)) &
(HDCP_STATUS_R0_READY | HDCP_STATUS_ENC), 1)) {
- DRM_ERROR("Timed out waiting for R0 ready\n");
+ drm_err(&dev_priv->drm, "Timed out waiting for R0 ready\n");
return -ETIMEDOUT;
}
@@ -743,8 +748,10 @@ static int intel_hdcp_auth(struct intel_connector *connector)
}
if (i == tries) {
- DRM_DEBUG_KMS("Timed out waiting for Ri prime match (%x)\n",
- intel_de_read(dev_priv, HDCP_STATUS(dev_priv, cpu_transcoder, port)));
+ drm_dbg_kms(&dev_priv->drm,
+ "Timed out waiting for Ri prime match (%x)\n",
+ intel_de_read(dev_priv, HDCP_STATUS(dev_priv,
+ cpu_transcoder, port)));
return -ETIMEDOUT;
}
@@ -753,7 +760,7 @@ static int intel_hdcp_auth(struct intel_connector *connector)
HDCP_STATUS(dev_priv, cpu_transcoder, port),
HDCP_STATUS_ENC,
ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
- DRM_ERROR("Timed out waiting for encryption\n");
+ drm_err(&dev_priv->drm, "Timed out waiting for encryption\n");
return -ETIMEDOUT;
}
@@ -765,7 +772,7 @@ static int intel_hdcp_auth(struct intel_connector *connector)
if (repeater_present)
return intel_hdcp_auth_downstream(connector);
- DRM_DEBUG_KMS("HDCP is enabled (no repeater present)\n");
+ drm_dbg_kms(&dev_priv->drm, "HDCP is enabled (no repeater present)\n");
return 0;
}
@@ -872,7 +879,8 @@ static int intel_hdcp_check_link(struct intel_connector *connector)
goto out;
}
- if (WARN_ON(!intel_hdcp_in_use(dev_priv, cpu_transcoder, port))) {
+ if (drm_WARN_ON(&dev_priv->drm,
+ !intel_hdcp_in_use(dev_priv, cpu_transcoder, port))) {
drm_err(&dev_priv->drm,
"%s:%d HDCP link stopped encryption,%x\n",
connector->base.name, connector->base.base.id,
@@ -1270,7 +1278,7 @@ static int hdcp2_authentication_key_exchange(struct intel_connector *connector)
return ret;
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");
+ drm_dbg_kms(&dev_priv->drm, "cert.rx_caps dont claim HDCP2.2\n");
return -EINVAL;
}
@@ -1279,7 +1287,7 @@ static int hdcp2_authentication_key_exchange(struct intel_connector *connector)
if (drm_hdcp_check_ksvs_revoked(&dev_priv->drm,
msgs.send_cert.cert_rx.receiver_id,
1)) {
- DRM_ERROR("Receiver ID is revoked\n");
+ drm_err(&dev_priv->drm, "Receiver ID is revoked\n");
return -EPERM;
}
@@ -1454,7 +1462,7 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector)
if (HDCP_2_2_MAX_CASCADE_EXCEEDED(rx_info[1]) ||
HDCP_2_2_MAX_DEVS_EXCEEDED(rx_info[1])) {
- DRM_DEBUG_KMS("Topology Max Size Exceeded\n");
+ drm_dbg_kms(&dev_priv->drm, "Topology Max Size Exceeded\n");
return -EINVAL;
}
@@ -1462,9 +1470,15 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector)
seq_num_v =
drm_hdcp_be24_to_cpu((const u8 *)msgs.recvid_list.seq_num_v);
+ if (!hdcp->hdcp2_encrypted && seq_num_v) {
+ drm_dbg_kms(&dev_priv->drm,
+ "Non zero Seq_num_v at first RecvId_List msg\n");
+ return -EINVAL;
+ }
+
if (seq_num_v < hdcp->seq_num_v) {
/* Roll over of the seq_num_v from repeater. Reauthenticate. */
- DRM_DEBUG_KMS("Seq_num_v roll over.\n");
+ drm_dbg_kms(&dev_priv->drm, "Seq_num_v roll over.\n");
return -EINVAL;
}
@@ -1473,7 +1487,7 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector)
if (drm_hdcp_check_ksvs_revoked(&dev_priv->drm,
msgs.recvid_list.receiver_ids,
device_cnt)) {
- DRM_ERROR("Revoked receiver ID(s) is in list\n");
+ drm_err(&dev_priv->drm, "Revoked receiver ID(s) is in list\n");
return -EPERM;
}
@@ -1506,25 +1520,27 @@ static int hdcp2_authenticate_repeater(struct intel_connector *connector)
static int hdcp2_authenticate_sink(struct intel_connector *connector)
{
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
const struct intel_hdcp_shim *shim = hdcp->shim;
int ret;
ret = hdcp2_authentication_key_exchange(connector);
if (ret < 0) {
- DRM_DEBUG_KMS("AKE Failed. Err : %d\n", ret);
+ drm_dbg_kms(&i915->drm, "AKE Failed. Err : %d\n", ret);
return ret;
}
ret = hdcp2_locality_check(connector);
if (ret < 0) {
- DRM_DEBUG_KMS("Locality Check failed. Err : %d\n", ret);
+ drm_dbg_kms(&i915->drm,
+ "Locality Check failed. Err : %d\n", ret);
return ret;
}
ret = hdcp2_session_key_exchange(connector);
if (ret < 0) {
- DRM_DEBUG_KMS("SKE Failed. Err : %d\n", ret);
+ drm_dbg_kms(&i915->drm, "SKE Failed. Err : %d\n", ret);
return ret;
}
@@ -1539,7 +1555,8 @@ static int hdcp2_authenticate_sink(struct intel_connector *connector)
if (hdcp->is_repeater) {
ret = hdcp2_authenticate_repeater(connector);
if (ret < 0) {
- DRM_DEBUG_KMS("Repeater Auth Failed. Err: %d\n", ret);
+ drm_dbg_kms(&i915->drm,
+ "Repeater Auth Failed. Err: %d\n", ret);
return ret;
}
}
@@ -1561,8 +1578,9 @@ static int hdcp2_enable_encryption(struct intel_connector *connector)
enum transcoder cpu_transcoder = hdcp->cpu_transcoder;
int ret;
- WARN_ON(intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)) &
- LINK_ENCRYPTION_STATUS);
+ drm_WARN_ON(&dev_priv->drm,
+ intel_de_read(dev_priv, 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) {
@@ -1599,8 +1617,8 @@ static int hdcp2_disable_encryption(struct intel_connector *connector)
enum transcoder cpu_transcoder = hdcp->cpu_transcoder;
int ret;
- WARN_ON(!(intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)) &
- LINK_ENCRYPTION_STATUS));
+ drm_WARN_ON(&dev_priv->drm, !(intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)) &
+ LINK_ENCRYPTION_STATUS));
intel_de_write(dev_priv, HDCP2_CTL(dev_priv, cpu_transcoder, port),
intel_de_read(dev_priv, HDCP2_CTL(dev_priv, cpu_transcoder, port)) & ~CTL_LINK_ENCRYPTION_REQ);
@@ -1628,6 +1646,7 @@ static int hdcp2_disable_encryption(struct intel_connector *connector)
static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
{
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
int ret, i, tries = 3;
for (i = 0; i < tries; i++) {
@@ -1636,10 +1655,10 @@ static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
break;
/* Clearing the mei hdcp session */
- DRM_DEBUG_KMS("HDCP2.2 Auth %d of %d Failed.(%d)\n",
- i + 1, tries, ret);
+ drm_dbg_kms(&i915->drm, "HDCP2.2 Auth %d of %d Failed.(%d)\n",
+ i + 1, tries, ret);
if (hdcp2_deauthenticate_port(connector) < 0)
- DRM_DEBUG_KMS("Port deauth failed.\n");
+ drm_dbg_kms(&i915->drm, "Port deauth failed.\n");
}
if (i != tries) {
@@ -1650,9 +1669,10 @@ static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
msleep(HDCP_2_2_DELAY_BEFORE_ENCRYPTION_EN);
ret = hdcp2_enable_encryption(connector);
if (ret < 0) {
- DRM_DEBUG_KMS("Encryption Enable Failed.(%d)\n", ret);
+ drm_dbg_kms(&i915->drm,
+ "Encryption Enable Failed.(%d)\n", ret);
if (hdcp2_deauthenticate_port(connector) < 0)
- DRM_DEBUG_KMS("Port deauth failed.\n");
+ drm_dbg_kms(&i915->drm, "Port deauth failed.\n");
}
}
@@ -1661,23 +1681,24 @@ static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
static int _intel_hdcp2_enable(struct intel_connector *connector)
{
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
int ret;
- DRM_DEBUG_KMS("[%s:%d] HDCP2.2 is being enabled. Type: %d\n",
- connector->base.name, connector->base.base.id,
- hdcp->content_type);
+ drm_dbg_kms(&i915->drm, "[%s:%d] HDCP2.2 is being enabled. Type: %d\n",
+ connector->base.name, connector->base.base.id,
+ hdcp->content_type);
ret = hdcp2_authenticate_and_encrypt(connector);
if (ret) {
- DRM_DEBUG_KMS("HDCP2 Type%d Enabling Failed. (%d)\n",
- hdcp->content_type, ret);
+ drm_dbg_kms(&i915->drm, "HDCP2 Type%d Enabling Failed. (%d)\n",
+ hdcp->content_type, ret);
return ret;
}
- DRM_DEBUG_KMS("[%s:%d] HDCP2.2 is enabled. Type %d\n",
- connector->base.name, connector->base.base.id,
- hdcp->content_type);
+ drm_dbg_kms(&i915->drm, "[%s:%d] HDCP2.2 is enabled. Type %d\n",
+ connector->base.name, connector->base.base.id,
+ hdcp->content_type);
hdcp->hdcp2_encrypted = true;
return 0;
@@ -1685,15 +1706,16 @@ static int _intel_hdcp2_enable(struct intel_connector *connector)
static int _intel_hdcp2_disable(struct intel_connector *connector)
{
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
int ret;
- DRM_DEBUG_KMS("[%s:%d] HDCP2.2 is being Disabled\n",
- connector->base.name, connector->base.base.id);
+ drm_dbg_kms(&i915->drm, "[%s:%d] HDCP2.2 is being Disabled\n",
+ connector->base.name, connector->base.base.id);
ret = hdcp2_disable_encryption(connector);
if (hdcp2_deauthenticate_port(connector) < 0)
- DRM_DEBUG_KMS("Port deauth failed.\n");
+ drm_dbg_kms(&i915->drm, "Port deauth failed.\n");
connector->hdcp.hdcp2_encrypted = false;
@@ -1720,7 +1742,8 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
goto out;
}
- if (WARN_ON(!intel_hdcp2_in_use(dev_priv, cpu_transcoder, port))) {
+ if (drm_WARN_ON(&dev_priv->drm,
+ !intel_hdcp2_in_use(dev_priv, cpu_transcoder, port))) {
drm_err(&dev_priv->drm,
"HDCP2.2 link stopped the encryption, %x\n",
intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)));
@@ -1916,7 +1939,7 @@ void intel_hdcp_component_init(struct drm_i915_private *dev_priv)
return;
mutex_lock(&dev_priv->hdcp_comp_mutex);
- WARN_ON(dev_priv->hdcp_comp_added);
+ drm_WARN_ON(&dev_priv->drm, dev_priv->hdcp_comp_added);
dev_priv->hdcp_comp_added = true;
mutex_unlock(&dev_priv->hdcp_comp_mutex);
@@ -1935,12 +1958,13 @@ void intel_hdcp_component_init(struct drm_i915_private *dev_priv)
static void intel_hdcp2_init(struct intel_connector *connector,
const struct intel_hdcp_shim *shim)
{
+ struct drm_i915_private *i915 = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
int ret;
ret = initialize_hdcp_port_data(connector, shim);
if (ret) {
- DRM_DEBUG_KMS("Mei hdcp data init failed\n");
+ drm_dbg_kms(&i915->drm, "Mei hdcp data init failed\n");
return;
}
@@ -1990,7 +2014,8 @@ int intel_hdcp_enable(struct intel_connector *connector,
return -ENOENT;
mutex_lock(&hdcp->mutex);
- WARN_ON(hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED);
+ drm_WARN_ON(&dev_priv->drm,
+ hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED);
hdcp->content_type = content_type;
if (INTEL_GEN(dev_priv) >= 12) {
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