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-rw-r--r--drivers/gpu/drm/nouveau/dispnv04/disp.c6
-rw-r--r--drivers/gpu/drm/nouveau/dispnv50/disp.c192
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_connector.c14
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_display.c2
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_display.h2
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_dp.c132
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_encoder.h33
7 files changed, 244 insertions, 137 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c b/drivers/gpu/drm/nouveau/dispnv04/disp.c
index 3f046b917c85..3ee836dc5058 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/disp.c
@@ -54,8 +54,9 @@ nv04_encoder_get_connector(struct nouveau_encoder *encoder)
}
static void
-nv04_display_fini(struct drm_device *dev, bool suspend)
+nv04_display_fini(struct drm_device *dev, bool runtime, bool suspend)
{
+ struct nouveau_drm *drm = nouveau_drm(dev);
struct nv04_display *disp = nv04_display(dev);
struct drm_crtc *crtc;
@@ -67,6 +68,9 @@ nv04_display_fini(struct drm_device *dev, bool suspend)
if (nv_two_heads(dev))
NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);
+ if (!runtime)
+ cancel_work_sync(&drm->hpd_work);
+
if (!suspend)
return;
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 612d98fa0a2d..8e1effb10425 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -879,16 +879,6 @@ nv50_hdmi_enable(struct drm_encoder *encoder, struct drm_atomic_state *state,
#define nv50_mstc(p) container_of((p), struct nv50_mstc, connector)
#define nv50_msto(p) container_of((p), struct nv50_msto, encoder)
-struct nv50_mstm {
- struct nouveau_encoder *outp;
-
- struct drm_dp_mst_topology_mgr mgr;
-
- bool modified;
- bool disabled;
- int links;
-};
-
struct nv50_mstc {
struct nv50_mstm *mstm;
struct drm_dp_mst_port *port;
@@ -1417,41 +1407,51 @@ nv50_mstm = {
.add_connector = nv50_mstm_add_connector,
};
-void
-nv50_mstm_service(struct nv50_mstm *mstm)
+bool
+nv50_mstm_service(struct nouveau_drm *drm,
+ struct nouveau_connector *nv_connector,
+ struct nv50_mstm *mstm)
{
- struct drm_dp_aux *aux = mstm ? mstm->mgr.aux : NULL;
- bool handled = true;
- int ret;
+ struct drm_dp_aux *aux = &nv_connector->aux;
+ bool handled = true, ret = true;
+ int rc;
u8 esi[8] = {};
- if (!aux)
- return;
-
while (handled) {
- ret = drm_dp_dpcd_read(aux, DP_SINK_COUNT_ESI, esi, 8);
- if (ret != 8) {
- drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, false);
- return;
+ rc = drm_dp_dpcd_read(aux, DP_SINK_COUNT_ESI, esi, 8);
+ if (rc != 8) {
+ ret = false;
+ break;
}
drm_dp_mst_hpd_irq(&mstm->mgr, esi, &handled);
if (!handled)
break;
- drm_dp_dpcd_write(aux, DP_SINK_COUNT_ESI + 1, &esi[1], 3);
+ rc = drm_dp_dpcd_write(aux, DP_SINK_COUNT_ESI + 1, &esi[1],
+ 3);
+ if (rc != 3) {
+ ret = false;
+ break;
+ }
}
+
+ if (!ret)
+ NV_DEBUG(drm, "Failed to handle ESI on %s: %d\n",
+ nv_connector->base.name, rc);
+
+ return ret;
}
void
nv50_mstm_remove(struct nv50_mstm *mstm)
{
- if (mstm)
- drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, false);
+ mstm->is_mst = false;
+ drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, false);
}
static int
-nv50_mstm_enable(struct nv50_mstm *mstm, u8 dpcd, int state)
+nv50_mstm_enable(struct nv50_mstm *mstm, int state)
{
struct nouveau_encoder *outp = mstm->outp;
struct {
@@ -1466,106 +1466,85 @@ nv50_mstm_enable(struct nv50_mstm *mstm, u8 dpcd, int state)
};
struct nouveau_drm *drm = nouveau_drm(outp->base.base.dev);
struct nvif_object *disp = &drm->display->disp.object;
- int ret;
-
- if (dpcd >= 0x12) {
- /* Even if we're enabling MST, start with disabling the
- * branching unit to clear any sink-side MST topology state
- * that wasn't set by us
- */
- ret = drm_dp_dpcd_writeb(mstm->mgr.aux, DP_MSTM_CTRL, 0);
- if (ret < 0)
- return ret;
-
- if (state) {
- /* Now, start initializing */
- ret = drm_dp_dpcd_writeb(mstm->mgr.aux, DP_MSTM_CTRL,
- DP_MST_EN);
- if (ret < 0)
- return ret;
- }
- }
return nvif_mthd(disp, 0, &args, sizeof(args));
}
int
-nv50_mstm_detect(struct nv50_mstm *mstm, u8 dpcd[8], int allow)
+nv50_mstm_detect(struct nouveau_encoder *outp)
{
+ struct nv50_mstm *mstm = outp->dp.mstm;
struct drm_dp_aux *aux;
int ret;
- bool old_state, new_state;
- u8 mstm_ctrl;
- if (!mstm)
+ if (!mstm || !mstm->can_mst)
return 0;
- mutex_lock(&mstm->mgr.lock);
-
- old_state = mstm->mgr.mst_state;
- new_state = old_state;
aux = mstm->mgr.aux;
- if (old_state) {
- /* Just check that the MST hub is still as we expect it */
- ret = drm_dp_dpcd_readb(aux, DP_MSTM_CTRL, &mstm_ctrl);
- if (ret < 0 || !(mstm_ctrl & DP_MST_EN)) {
- DRM_DEBUG_KMS("Hub gone, disabling MST topology\n");
- new_state = false;
- }
- } else if (dpcd[0] >= 0x12) {
- ret = drm_dp_dpcd_readb(aux, DP_MSTM_CAP, &dpcd[1]);
- if (ret < 0)
- goto probe_error;
-
- if (!(dpcd[1] & DP_MST_CAP))
- dpcd[0] = 0x11;
- else
- new_state = allow;
- }
-
- if (new_state == old_state) {
- mutex_unlock(&mstm->mgr.lock);
- return new_state;
- }
-
- ret = nv50_mstm_enable(mstm, dpcd[0], new_state);
- if (ret)
- goto probe_error;
-
- mutex_unlock(&mstm->mgr.lock);
+ /* Clear any leftover MST state we didn't set ourselves by first
+ * disabling MST if it was already enabled
+ */
+ ret = drm_dp_dpcd_writeb(aux, DP_MSTM_CTRL, 0);
+ if (ret < 0)
+ return ret;
- ret = drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, new_state);
+ /* And start enabling */
+ ret = nv50_mstm_enable(mstm, true);
if (ret)
- return nv50_mstm_enable(mstm, dpcd[0], 0);
+ return ret;
- return new_state;
+ ret = drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, true);
+ if (ret) {
+ nv50_mstm_enable(mstm, false);
+ return ret;
+ }
-probe_error:
- mutex_unlock(&mstm->mgr.lock);
- return ret;
+ mstm->is_mst = true;
+ return 1;
}
static void
-nv50_mstm_fini(struct nv50_mstm *mstm)
+nv50_mstm_fini(struct nouveau_encoder *outp)
{
- if (mstm && mstm->mgr.mst_state)
+ struct nv50_mstm *mstm = outp->dp.mstm;
+
+ if (!mstm)
+ return;
+
+ /* Don't change the MST state of this connector until we've finished
+ * resuming, since we can't safely grab hpd_irq_lock in our resume
+ * path to protect mstm->is_mst without potentially deadlocking
+ */
+ mutex_lock(&outp->dp.hpd_irq_lock);
+ mstm->suspended = true;
+ mutex_unlock(&outp->dp.hpd_irq_lock);
+
+ if (mstm->is_mst)
drm_dp_mst_topology_mgr_suspend(&mstm->mgr);
}
static void
-nv50_mstm_init(struct nv50_mstm *mstm, bool runtime)
+nv50_mstm_init(struct nouveau_encoder *outp, bool runtime)
{
- int ret;
+ struct nv50_mstm *mstm = outp->dp.mstm;
+ int ret = 0;
- if (!mstm || !mstm->mgr.mst_state)
+ if (!mstm)
return;
- ret = drm_dp_mst_topology_mgr_resume(&mstm->mgr, !runtime);
- if (ret == -1) {
- drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, false);
- drm_kms_helper_hotplug_event(mstm->mgr.dev);
+ if (mstm->is_mst) {
+ ret = drm_dp_mst_topology_mgr_resume(&mstm->mgr, !runtime);
+ if (ret == -1)
+ nv50_mstm_remove(mstm);
}
+
+ mutex_lock(&outp->dp.hpd_irq_lock);
+ mstm->suspended = false;
+ mutex_unlock(&outp->dp.hpd_irq_lock);
+
+ if (ret == -1)
+ drm_kms_helper_hotplug_event(mstm->mgr.dev);
}
static void
@@ -1773,6 +1752,10 @@ nv50_sor_destroy(struct drm_encoder *encoder)
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
nv50_mstm_del(&nv_encoder->dp.mstm);
drm_encoder_cleanup(encoder);
+
+ if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
+ mutex_destroy(&nv_encoder->dp.hpd_irq_lock);
+
kfree(encoder);
}
@@ -1832,6 +1815,8 @@ nv50_sor_create(struct drm_connector *connector, struct dcb_output *dcbe)
struct nvkm_i2c_aux *aux =
nvkm_i2c_aux_find(i2c, dcbe->i2c_index);
+ mutex_init(&nv_encoder->dp.hpd_irq_lock);
+
if (aux) {
if (disp->disp->object.oclass < GF110_DISP) {
/* HW has no support for address-only
@@ -2530,9 +2515,9 @@ nv50_disp_func = {
*****************************************************************************/
static void
-nv50_display_fini(struct drm_device *dev, bool suspend)
+nv50_display_fini(struct drm_device *dev, bool runtime, bool suspend)
{
- struct nouveau_encoder *nv_encoder;
+ struct nouveau_drm *drm = nouveau_drm(dev);
struct drm_encoder *encoder;
struct drm_plane *plane;
@@ -2544,11 +2529,12 @@ nv50_display_fini(struct drm_device *dev, bool suspend)
}
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
- if (encoder->encoder_type != DRM_MODE_ENCODER_DPMST) {
- nv_encoder = nouveau_encoder(encoder);
- nv50_mstm_fini(nv_encoder->dp.mstm);
- }
+ if (encoder->encoder_type != DRM_MODE_ENCODER_DPMST)
+ nv50_mstm_fini(nouveau_encoder(encoder));
}
+
+ if (!runtime)
+ cancel_work_sync(&drm->hpd_work);
}
static int
@@ -2565,7 +2551,7 @@ nv50_display_init(struct drm_device *dev, bool resume, bool runtime)
if (encoder->encoder_type != DRM_MODE_ENCODER_DPMST) {
struct nouveau_encoder *nv_encoder =
nouveau_encoder(encoder);
- nv50_mstm_init(nv_encoder->dp.mstm, runtime);
+ nv50_mstm_init(nv_encoder, runtime);
}
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 1d5696c39792..b90591114faa 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -1143,19 +1143,15 @@ nouveau_connector_hotplug(struct nvif_notify *notify)
struct nouveau_connector *nv_connector =
container_of(notify, typeof(*nv_connector), hpd);
struct drm_connector *connector = &nv_connector->base;
- struct nouveau_drm *drm = nouveau_drm(connector->dev);
+ struct drm_device *dev = connector->dev;
+ struct nouveau_drm *drm = nouveau_drm(dev);
const struct nvif_notify_conn_rep_v0 *rep = notify->data;
const char *name = connector->name;
- struct nouveau_encoder *nv_encoder;
int ret;
bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
- NV_DEBUG(drm, "service %s\n", name);
- drm_dp_cec_irq(&nv_connector->aux);
- if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
- nv50_mstm_service(nv_encoder->dp.mstm);
-
+ nouveau_dp_irq(drm, nv_connector);
return NVIF_NOTIFY_KEEP;
}
@@ -1181,10 +1177,6 @@ nouveau_connector_hotplug(struct nvif_notify *notify)
if (!plugged)
drm_dp_cec_unset_edid(&nv_connector->aux);
NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
- if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
- if (!plugged)
- nv50_mstm_remove(nv_encoder->dp.mstm);
- }
drm_helper_hpd_irq_event(connector->dev);
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 5f31b11ac2e7..13016769a194 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -569,7 +569,7 @@ nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
cancel_work_sync(&drm->hpd_work);
drm_kms_helper_poll_disable(dev);
- disp->fini(dev, suspend);
+ disp->fini(dev, runtime, suspend);
}
static void
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h b/drivers/gpu/drm/nouveau/nouveau_display.h
index 6e0d900441d6..76ba93e01aff 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.h
+++ b/drivers/gpu/drm/nouveau/nouveau_display.h
@@ -18,7 +18,7 @@ struct nouveau_display {
void *priv;
void (*dtor)(struct drm_device *);
int (*init)(struct drm_device *, bool resume, bool runtime);
- void (*fini)(struct drm_device *, bool suspend);
+ void (*fini)(struct drm_device *, bool suspend, bool runtime);
struct nvif_disp disp;
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c
index 4030806e3522..032afc73e2a3 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dp.c
@@ -36,19 +36,89 @@ MODULE_PARM_DESC(mst, "Enable DisplayPort multi-stream (default: enabled)");
static int nouveau_mst = 1;
module_param_named(mst, nouveau_mst, int, 0400);
+static enum drm_connector_status
+nouveau_dp_probe_dpcd(struct nouveau_connector *nv_connector,
+ struct nouveau_encoder *outp)
+{
+ struct drm_dp_aux *aux = &nv_connector->aux;
+ struct nv50_mstm *mstm = NULL;
+ int ret;
+ u8 *dpcd = outp->dp.dpcd;
+ u8 tmp;
+
+ ret = drm_dp_dpcd_read(aux, DP_DPCD_REV, dpcd, DP_RECEIVER_CAP_SIZE);
+ if (ret == DP_RECEIVER_CAP_SIZE && dpcd[DP_DPCD_REV]) {
+ ret = drm_dp_read_desc(aux, &outp->dp.desc,
+ drm_dp_is_branch(dpcd));
+ if (ret < 0)
+ return connector_status_disconnected;
+ } else {
+ return connector_status_disconnected;
+ }
+
+ if (nouveau_mst)
+ mstm = outp->dp.mstm;
+
+ if (mstm) {
+ if (dpcd[DP_DPCD_REV] >= DP_DPCD_REV_12) {
+ ret = drm_dp_dpcd_readb(aux, DP_MSTM_CAP, &tmp);
+ if (ret < 0)
+ return connector_status_disconnected;
+
+ mstm->can_mst = !!(tmp & DP_MST_CAP);
+ } else {
+ mstm->can_mst = false;
+ }
+ }
+
+ return connector_status_connected;
+}
+
int
nouveau_dp_detect(struct nouveau_connector *nv_connector,
struct nouveau_encoder *nv_encoder)
{
struct drm_device *dev = nv_encoder->base.base.dev;
struct nouveau_drm *drm = nouveau_drm(dev);
- struct drm_dp_aux *aux = &nv_connector->aux;
- u8 dpcd[DP_RECEIVER_CAP_SIZE];
- int ret;
+ struct drm_connector *connector = &nv_connector->base;
+ struct nv50_mstm *mstm = nv_encoder->dp.mstm;
+ enum drm_connector_status status;
+ u8 *dpcd = nv_encoder->dp.dpcd;
+ int ret = NOUVEAU_DP_NONE;
+
+ /* If we've already read the DPCD on an eDP device, we don't need to
+ * reread it as it won't change
+ */
+ if (connector->connector_type == DRM_MODE_CONNECTOR_eDP &&
+ dpcd[DP_DPCD_REV] != 0)
+ return NOUVEAU_DP_SST;
- ret = drm_dp_dpcd_read(aux, DP_DPCD_REV, dpcd, DP_RECEIVER_CAP_SIZE);
- if (ret != sizeof(dpcd))
- return ret;
+ mutex_lock(&nv_encoder->dp.hpd_irq_lock);
+ if (mstm) {
+ /* If we're not ready to handle MST state changes yet, just
+ * report the last status of the connector. We'll reprobe it
+ * once we've resumed.
+ */
+ if (mstm->suspended) {
+ if (mstm->is_mst)
+ ret = NOUVEAU_DP_MST;
+ else if (connector->status ==
+ connector_status_connected)
+ ret = NOUVEAU_DP_SST;
+
+ goto out;
+ }
+ }
+
+ status = nouveau_dp_probe_dpcd(nv_connector, nv_encoder);
+ if (status == connector_status_disconnected)
+ goto out;
+
+ /* If we're in MST mode, we're done here */
+ if (mstm && mstm->can_mst && mstm->is_mst) {
+ ret = NOUVEAU_DP_MST;
+ goto out;
+ }
nv_encoder->dp.link_bw = 27000 * dpcd[DP_MAX_LINK_RATE];
nv_encoder->dp.link_nr =
@@ -69,22 +139,50 @@ nouveau_dp_detect(struct nouveau_connector *nv_connector,
NV_DEBUG(drm, "maximum: %dx%d\n",
nv_encoder->dp.link_nr, nv_encoder->dp.link_bw);
- ret = drm_dp_read_desc(&nv_connector->aux, &nv_encoder->dp.desc,
- drm_dp_is_branch(dpcd));
- if (ret) {
- NV_ERROR(drm, "Failed to read DP descriptor on %s: %d\n",
- nv_connector->base.name, ret);
- return ret;
+ if (mstm && mstm->can_mst) {
+ ret = nv50_mstm_detect(nv_encoder);
+ if (ret == 1) {
+ ret = NOUVEAU_DP_MST;
+ goto out;
+ } else if (ret != 0) {
+ goto out;
+ }
}
+ ret = NOUVEAU_DP_SST;
- ret = nv50_mstm_detect(nv_encoder->dp.mstm, dpcd, nouveau_mst);
- if (ret == 1)
- return NOUVEAU_DP_MST;
- if (ret == 0)
- return NOUVEAU_DP_SST;
+out:
+ if (mstm && !mstm->suspended && ret != NOUVEAU_DP_MST)
+ nv50_mstm_remove(mstm);
+
+ mutex_unlock(&nv_encoder->dp.hpd_irq_lock);
return ret;
}
+void nouveau_dp_irq(struct nouveau_drm *drm,
+ struct nouveau_connector *nv_connector)
+{
+ struct drm_connector *connector = &nv_connector->base;
+ struct nouveau_encoder *outp = find_encoder(connector, DCB_OUTPUT_DP);
+ struct nv50_mstm *mstm;
+
+ if (!outp)
+ return;
+
+ mstm = outp->dp.mstm;
+ NV_DEBUG(drm, "service %s\n", connector->name);
+
+ mutex_lock(&outp->dp.hpd_irq_lock);
+
+ if (mstm && mstm->is_mst) {
+ if (!nv50_mstm_service(drm, nv_connector, mstm))
+ schedule_work(&drm->hpd_work);
+ } else {
+ drm_dp_cec_irq(&nv_connector->aux);
+ }
+
+ mutex_unlock(&outp->dp.hpd_irq_lock);
+}
+
/* TODO:
* - Use the minimum possible BPC here, once we add support for the max bpc
* property.
diff --git a/drivers/gpu/drm/nouveau/nouveau_encoder.h b/drivers/gpu/drm/nouveau/nouveau_encoder.h
index b0e1dad2367d..eef4643f5f98 100644
--- a/drivers/gpu/drm/nouveau/nouveau_encoder.h
+++ b/drivers/gpu/drm/nouveau/nouveau_encoder.h
@@ -65,6 +65,13 @@ struct nouveau_encoder {
struct nv50_mstm *mstm;
int link_nr;
int link_bw;
+
+ /* Protects DP state that needs to be accessed outside
+ * connector reprobing contexts
+ */
+ struct mutex hpd_irq_lock;
+
+ u8 dpcd[DP_RECEIVER_CAP_SIZE];
struct drm_dp_desc desc;
} dp;
};
@@ -79,6 +86,21 @@ struct nouveau_encoder {
struct nv50_head_atom *, u8 proto, u8 depth);
};
+struct nv50_mstm {
+ struct nouveau_encoder *outp;
+
+ struct drm_dp_mst_topology_mgr mgr;
+
+ /* Protected under nouveau_encoder->dp.hpd_irq_lock */
+ bool can_mst;
+ bool is_mst;
+ bool suspended;
+
+ bool modified;
+ bool disabled;
+ int links;
+};
+
struct nouveau_encoder *
find_encoder(struct drm_connector *connector, int type);
@@ -102,11 +124,14 @@ get_slave_funcs(struct drm_encoder *enc)
/* nouveau_dp.c */
enum nouveau_dp_status {
+ NOUVEAU_DP_NONE,
NOUVEAU_DP_SST,
NOUVEAU_DP_MST,
};
int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *);
+void nouveau_dp_irq(struct nouveau_drm *drm,
+ struct nouveau_connector *nv_connector);
enum drm_mode_status nv50_dp_mode_valid(struct drm_connector *,
struct nouveau_encoder *,
const struct drm_display_mode *,
@@ -119,7 +144,9 @@ struct nouveau_connector *
nv50_outp_get_old_connector(struct nouveau_encoder *outp,
struct drm_atomic_state *state);
-int nv50_mstm_detect(struct nv50_mstm *, u8 dpcd[8], int allow);
-void nv50_mstm_remove(struct nv50_mstm *);
-void nv50_mstm_service(struct nv50_mstm *);
+int nv50_mstm_detect(struct nouveau_encoder *encoder);
+void nv50_mstm_remove(struct nv50_mstm *mstm);
+bool nv50_mstm_service(struct nouveau_drm *drm,
+ struct nouveau_connector *nv_connector,
+ struct nv50_mstm *mstm);
#endif /* __NOUVEAU_ENCODER_H__ */