> -----Original Message----- > From: Sean Paul [mailto:seanpaul@xxxxxxxxxxxx] > Sent: Tuesday, July 10, 2018 2:00 AM > To: C, Ramalingam <ramalingam.c@xxxxxxxxx> > Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; > daniel@xxxxxxxx; Winkler, Tomas <tomas.winkler@xxxxxxxxx>; Usyskin, > Alexander <alexander.usyskin@xxxxxxxxx>; Shankar, Uma > <uma.shankar@xxxxxxxxx> > Subject: Re: [PATCH v5 05/40] drm/i915: wrapping all hdcp var into intel_hdcp > > On Wed, Jun 27, 2018 at 02:09:54PM +0530, Ramalingam C wrote: > > Considering significant number of HDCP specific variables, it will be > > clean to have separate struct for HDCP. > > > > New structure called intel_hdcp is added within intel_connector. > > > > v2: > > struct hdcp statically allocated. [Sean Paul] > > enable and disable function parameters are retained.[Sean Paul] > > v3: > > No Changes. > > v4: > > Commit msg is rephrased [Uma] > > v5: > > Comment for mutex definition. > > > > Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx> > > --- > > drivers/gpu/drm/i915/intel_display.c | 7 +-- > > drivers/gpu/drm/i915/intel_drv.h | 15 ++++-- > > drivers/gpu/drm/i915/intel_hdcp.c | 94 ++++++++++++++++++++-------------- > -- > > 3 files changed, 67 insertions(+), 49 deletions(-) > > > > diff --git a/drivers/gpu/drm/i915/intel_display.c > > b/drivers/gpu/drm/i915/intel_display.c > > index 3d849ec17f5c..ef09bb89d2ca 100644 > > --- a/drivers/gpu/drm/i915/intel_display.c > > +++ b/drivers/gpu/drm/i915/intel_display.c > > @@ -15856,9 +15856,10 @@ static void intel_hpd_poll_fini(struct drm_device > *dev) > > for_each_intel_connector_iter(connector, &conn_iter) { > > if (connector->modeset_retry_work.func) > > cancel_work_sync(&connector->modeset_retry_work); > > - if (connector->hdcp_shim) { > > - cancel_delayed_work_sync(&connector- > >hdcp_check_work); > > - cancel_work_sync(&connector->hdcp_prop_work); > > + if (connector->hdcp.hdcp_shim) { > > + cancel_delayed_work_sync( > > + &connector->hdcp.hdcp_check_work); > > + cancel_work_sync(&connector- > >hdcp.hdcp_prop_work); > > } > > } > > drm_connector_list_iter_end(&conn_iter); > > diff --git a/drivers/gpu/drm/i915/intel_drv.h > > b/drivers/gpu/drm/i915/intel_drv.h > > index 578346b8d7e2..eb480574a92e 100644 > > --- a/drivers/gpu/drm/i915/intel_drv.h > > +++ b/drivers/gpu/drm/i915/intel_drv.h > > @@ -377,6 +377,15 @@ struct intel_hdcp_shim { > > bool *hdcp_capable); > > }; > > > > +struct intel_hdcp { > > + const struct intel_hdcp_shim *hdcp_shim; > > + /* Mutex for hdcp state of the connector */ > > + struct mutex hdcp_mutex; > > + uint64_t hdcp_value; > > + struct delayed_work hdcp_check_work; > > + struct work_struct hdcp_prop_work; > > Now that they're in their own struct, you can probably drop the hdcp_* prefix > from the struct members. Sure I will do that. > > > +}; > > + > > struct intel_connector { > > struct drm_connector base; > > /* > > @@ -409,11 +418,7 @@ struct intel_connector { > > /* Work struct to schedule a uevent on link train failure */ > > struct work_struct modeset_retry_work; > > > > - const struct intel_hdcp_shim *hdcp_shim; > > - struct mutex hdcp_mutex; > > - uint64_t hdcp_value; /* protected by hdcp_mutex */ > > - struct delayed_work hdcp_check_work; > > - struct work_struct hdcp_prop_work; > > + struct intel_hdcp hdcp; > > }; > > > > struct intel_digital_connector_state { diff --git > > a/drivers/gpu/drm/i915/intel_hdcp.c > > b/drivers/gpu/drm/i915/intel_hdcp.c > > index 0cc6a861bcf8..65bbe5874eee 100644 > > --- a/drivers/gpu/drm/i915/intel_hdcp.c > > +++ b/drivers/gpu/drm/i915/intel_hdcp.c > > @@ -626,6 +626,7 @@ struct intel_digital_port *conn_to_dig_port(struct > > intel_connector *connector) > > > > static int _intel_hdcp_disable(struct intel_connector *connector) { > > + struct intel_hdcp *hdcp = &connector->hdcp; > > 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; @@ -641,7 +642,7 @@ > > static int _intel_hdcp_disable(struct intel_connector *connector) > > return -ETIMEDOUT; > > } > > > > - ret = connector->hdcp_shim->toggle_signalling(intel_dig_port, false); > > + ret = hdcp->hdcp_shim->toggle_signalling(intel_dig_port, false); > > if (ret) { > > DRM_ERROR("Failed to disable HDCP signalling\n"); > > return ret; > > @@ -653,6 +654,7 @@ static int _intel_hdcp_disable(struct > > intel_connector *connector) > > > > static int _intel_hdcp_enable(struct intel_connector *connector) { > > + struct intel_hdcp *hdcp = &connector->hdcp; > > struct drm_i915_private *dev_priv = connector->base.dev->dev_private; > > int i, ret, tries = 3; > > > > @@ -678,7 +680,7 @@ static int _intel_hdcp_enable(struct intel_connector > *connector) > > /* Incase of authentication failures, HDCP spec expects reauth. */ > > for (i = 0; i < tries; i++) { > > ret = intel_hdcp_auth(conn_to_dig_port(connector), > > - connector->hdcp_shim); > > + hdcp->hdcp_shim); > > if (!ret) > > return 0; > > > > @@ -694,36 +696,42 @@ static int _intel_hdcp_enable(struct > > intel_connector *connector) > > > > static void intel_hdcp_check_work(struct work_struct *work) { > > - struct intel_connector *connector = > container_of(to_delayed_work(work), > > + struct intel_hdcp *hdcp = container_of(to_delayed_work(work), > > + struct intel_hdcp, > > + hdcp_check_work); > > + struct intel_connector *connector = container_of(hdcp, > > struct > intel_connector, > > - hdcp_check_work); > > + hdcp); > > Since you use this below, break this out into a static inline helper > intel_hdcp_to_connector(). Sure. > > > With those nits addressed, > > Reviewed-by: Sean Paul <seanpaul@xxxxxxxxxxxx> Thanks for the R-b. Ram. > > > > + > > if (!intel_hdcp_check_link(connector)) > > - schedule_delayed_work(&connector->hdcp_check_work, > > + schedule_delayed_work(&hdcp->hdcp_check_work, > > DRM_HDCP_CHECK_PERIOD_MS); > > } > > > > static void intel_hdcp_prop_work(struct work_struct *work) { > > - struct intel_connector *connector = container_of(work, > > + struct intel_hdcp *hdcp = container_of(work, struct intel_hdcp, > > + hdcp_prop_work); > > + struct intel_connector *connector = container_of(hdcp, > > struct > intel_connector, > > - hdcp_prop_work); > > + hdcp); > > struct drm_device *dev = connector->base.dev; > > struct drm_connector_state *state; > > > > drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); > > - mutex_lock(&connector->hdcp_mutex); > > + mutex_lock(&hdcp->hdcp_mutex); > > > > /* > > * This worker is only used to flip between ENABLED/DESIRED. Either of > > * those to UNDESIRED is handled by core. If hdcp_value == > UNDESIRED, > > * we're running just after hdcp has been disabled, so just exit > > */ > > - if (connector->hdcp_value != > DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { > > + if (hdcp->hdcp_value != > DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { > > state = connector->base.state; > > - state->content_protection = connector->hdcp_value; > > + state->content_protection = hdcp->hdcp_value; > > } > > > > - mutex_unlock(&connector->hdcp_mutex); > > + mutex_unlock(&hdcp->hdcp_mutex); > > drm_modeset_unlock(&dev->mode_config.connection_mutex); > > } > > > > @@ -737,6 +745,7 @@ bool is_hdcp_supported(struct drm_i915_private > > *dev_priv, enum port port) int intel_hdcp_init(struct intel_connector > *connector, > > const struct intel_hdcp_shim *hdcp_shim) { > > + struct intel_hdcp *hdcp = &connector->hdcp; > > int ret; > > > > ret = drm_connector_attach_content_protection_property( > > @@ -744,51 +753,53 @@ int intel_hdcp_init(struct intel_connector > *connector, > > if (ret) > > return ret; > > > > - connector->hdcp_shim = hdcp_shim; > > - mutex_init(&connector->hdcp_mutex); > > - INIT_DELAYED_WORK(&connector->hdcp_check_work, > intel_hdcp_check_work); > > - INIT_WORK(&connector->hdcp_prop_work, intel_hdcp_prop_work); > > + hdcp->hdcp_shim = hdcp_shim; > > + mutex_init(&hdcp->hdcp_mutex); > > + INIT_DELAYED_WORK(&hdcp->hdcp_check_work, > intel_hdcp_check_work); > > + INIT_WORK(&hdcp->hdcp_prop_work, intel_hdcp_prop_work); > > return 0; > > } > > > > int intel_hdcp_enable(struct intel_connector *connector) { > > + struct intel_hdcp *hdcp = &connector->hdcp; > > int ret; > > > > - if (!connector->hdcp_shim) > > + if (!hdcp->hdcp_shim) > > return -ENOENT; > > > > - mutex_lock(&connector->hdcp_mutex); > > + mutex_lock(&hdcp->hdcp_mutex); > > > > ret = _intel_hdcp_enable(connector); > > if (ret) > > goto out; > > > > - connector->hdcp_value = > DRM_MODE_CONTENT_PROTECTION_ENABLED; > > - schedule_work(&connector->hdcp_prop_work); > > - schedule_delayed_work(&connector->hdcp_check_work, > > + hdcp->hdcp_value = DRM_MODE_CONTENT_PROTECTION_ENABLED; > > + schedule_work(&hdcp->hdcp_prop_work); > > + schedule_delayed_work(&hdcp->hdcp_check_work, > > DRM_HDCP_CHECK_PERIOD_MS); > > out: > > - mutex_unlock(&connector->hdcp_mutex); > > + mutex_unlock(&hdcp->hdcp_mutex); > > return ret; > > } > > > > int intel_hdcp_disable(struct intel_connector *connector) { > > + struct intel_hdcp *hdcp = &connector->hdcp; > > int ret = 0; > > > > - if (!connector->hdcp_shim) > > + if (!hdcp->hdcp_shim) > > return -ENOENT; > > > > - mutex_lock(&connector->hdcp_mutex); > > + mutex_lock(&hdcp->hdcp_mutex); > > > > - if (connector->hdcp_value != > DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { > > - connector->hdcp_value = > DRM_MODE_CONTENT_PROTECTION_UNDESIRED; > > + if (hdcp->hdcp_value != > DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { > > + hdcp->hdcp_value = > DRM_MODE_CONTENT_PROTECTION_UNDESIRED; > > ret = _intel_hdcp_disable(connector); > > } > > > > - mutex_unlock(&connector->hdcp_mutex); > > - cancel_delayed_work_sync(&connector->hdcp_check_work); > > + mutex_unlock(&hdcp->hdcp_mutex); > > + cancel_delayed_work_sync(&hdcp->hdcp_check_work); > > return ret; > > } > > > > @@ -828,17 +839,18 @@ void intel_hdcp_atomic_check(struct > > drm_connector *connector, > > /* Implements Part 3 of the HDCP authorization procedure */ int > > intel_hdcp_check_link(struct intel_connector *connector) { > > + struct intel_hdcp *hdcp = &connector->hdcp; > > 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; > > int ret = 0; > > > > - if (!connector->hdcp_shim) > > + if (!hdcp->hdcp_shim) > > return -ENOENT; > > > > - mutex_lock(&connector->hdcp_mutex); > > + mutex_lock(&hdcp->hdcp_mutex); > > > > - if (connector->hdcp_value == > DRM_MODE_CONTENT_PROTECTION_UNDESIRED) > > + if (hdcp->hdcp_value == > DRM_MODE_CONTENT_PROTECTION_UNDESIRED) > > goto out; > > > > if (!(I915_READ(PORT_HDCP_STATUS(port)) & HDCP_STATUS_ENC)) { > @@ > > -846,17 +858,17 @@ int intel_hdcp_check_link(struct intel_connector > *connector) > > connector->base.name, connector->base.base.id, > > I915_READ(PORT_HDCP_STATUS(port))); > > ret = -ENXIO; > > - connector->hdcp_value = > DRM_MODE_CONTENT_PROTECTION_DESIRED; > > - schedule_work(&connector->hdcp_prop_work); > > + hdcp->hdcp_value = > DRM_MODE_CONTENT_PROTECTION_DESIRED; > > + schedule_work(&hdcp->hdcp_prop_work); > > goto out; > > } > > > > - if (connector->hdcp_shim->check_link(intel_dig_port)) { > > - if (connector->hdcp_value != > > + if (hdcp->hdcp_shim->check_link(intel_dig_port)) { > > + if (hdcp->hdcp_value != > > DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { > > - connector->hdcp_value = > > + hdcp->hdcp_value = > > > DRM_MODE_CONTENT_PROTECTION_ENABLED; > > - schedule_work(&connector->hdcp_prop_work); > > + schedule_work(&hdcp->hdcp_prop_work); > > } > > goto out; > > } > > @@ -867,20 +879,20 @@ int intel_hdcp_check_link(struct intel_connector > *connector) > > ret = _intel_hdcp_disable(connector); > > if (ret) { > > DRM_ERROR("Failed to disable hdcp (%d)\n", ret); > > - connector->hdcp_value = > DRM_MODE_CONTENT_PROTECTION_DESIRED; > > - schedule_work(&connector->hdcp_prop_work); > > + hdcp->hdcp_value = > DRM_MODE_CONTENT_PROTECTION_DESIRED; > > + schedule_work(&hdcp->hdcp_prop_work); > > goto out; > > } > > > > ret = _intel_hdcp_enable(connector); > > if (ret) { > > DRM_ERROR("Failed to enable hdcp (%d)\n", ret); > > - connector->hdcp_value = > DRM_MODE_CONTENT_PROTECTION_DESIRED; > > - schedule_work(&connector->hdcp_prop_work); > > + hdcp->hdcp_value = > DRM_MODE_CONTENT_PROTECTION_DESIRED; > > + schedule_work(&hdcp->hdcp_prop_work); > > goto out; > > } > > > > out: > > - mutex_unlock(&connector->hdcp_mutex); > > + mutex_unlock(&hdcp->hdcp_mutex); > > return ret; > > } > > -- > > 2.7.4 > > > > _______________________________________________ > > dri-devel mailing list > > dri-devel@xxxxxxxxxxxxxxxxxxxxx > > https://lists.freedesktop.org/mailman/listinfo/dri-devel > > -- > Sean Paul, Software Engineer, Google / Chromium OS _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
