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author | Dave Airlie <airlied@redhat.com> | 2020-01-18 12:54:10 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2020-01-18 12:54:37 +1000 |
commit | f66d84c8b4db9a4f77f29e2d8fd521196c879582 (patch) | |
tree | 0dd45886515b9487d2d790067ed717167c2dbe1b /drivers/gpu/drm | |
parent | e33c7ba89263c4bf5d0553907f315dd38751e684 (diff) | |
parent | 5a64967a2f3bbc01cc708ee43c7b0893089c61c4 (diff) | |
download | linux-stable-f66d84c8b4db9a4f77f29e2d8fd521196c879582.tar.gz linux-stable-f66d84c8b4db9a4f77f29e2d8fd521196c879582.tar.bz2 linux-stable-f66d84c8b4db9a4f77f29e2d8fd521196c879582.zip |
Merge tag 'drm-misc-fixes-2020-01-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
virtio: maintain obj reservation lock when submitting cmds (Gerd)
rockchip: increase link rate var size to accommodate rates (Tobias)
mst: serialize down messages and clear timeslots are on unplug (Wayne)
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Tobias Schramm <t.schramm@manjaro.org>
Cc: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116162856.GA11524@art_vandelay
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 39 | ||||
-rw-r--r-- | drivers/gpu/drm/rockchip/cdn-dp-core.h | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_plane.c | 1 |
3 files changed, 38 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 644c72f9c594..5a61a5596912 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -1190,6 +1190,8 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb, txmsg->state == DRM_DP_SIDEBAND_TX_SENT) { mstb->tx_slots[txmsg->seqno] = NULL; } + mgr->is_waiting_for_dwn_reply = false; + } out: if (unlikely(ret == -EIO) && drm_debug_enabled(DRM_UT_DP)) { @@ -1199,6 +1201,7 @@ out: } mutex_unlock(&mgr->qlock); + drm_dp_mst_kick_tx(mgr); return ret; } @@ -2318,7 +2321,7 @@ drm_dp_mst_handle_conn_stat(struct drm_dp_mst_branch *mstb, { struct drm_dp_mst_topology_mgr *mgr = mstb->mgr; struct drm_dp_mst_port *port; - int old_ddps, ret; + int old_ddps, old_input, ret, i; u8 new_pdt; bool dowork = false, create_connector = false; @@ -2349,6 +2352,7 @@ drm_dp_mst_handle_conn_stat(struct drm_dp_mst_branch *mstb, } old_ddps = port->ddps; + old_input = port->input; port->input = conn_stat->input_port; port->mcs = conn_stat->message_capability_status; port->ldps = conn_stat->legacy_device_plug_status; @@ -2373,6 +2377,28 @@ drm_dp_mst_handle_conn_stat(struct drm_dp_mst_branch *mstb, dowork = false; } + if (!old_input && old_ddps != port->ddps && !port->ddps) { + for (i = 0; i < mgr->max_payloads; i++) { + struct drm_dp_vcpi *vcpi = mgr->proposed_vcpis[i]; + struct drm_dp_mst_port *port_validated; + + if (!vcpi) + continue; + + port_validated = + container_of(vcpi, struct drm_dp_mst_port, vcpi); + port_validated = + drm_dp_mst_topology_get_port_validated(mgr, port_validated); + if (!port_validated) { + mutex_lock(&mgr->payload_lock); + vcpi->num_slots = 0; + mutex_unlock(&mgr->payload_lock); + } else { + drm_dp_mst_topology_put_port(port_validated); + } + } + } + if (port->connector) drm_modeset_unlock(&mgr->base.lock); else if (create_connector) @@ -2718,9 +2744,11 @@ static void process_single_down_tx_qlock(struct drm_dp_mst_topology_mgr *mgr) ret = process_single_tx_qlock(mgr, txmsg, false); if (ret == 1) { /* txmsg is sent it should be in the slots now */ + mgr->is_waiting_for_dwn_reply = true; list_del(&txmsg->next); } else if (ret) { DRM_DEBUG_KMS("failed to send msg in q %d\n", ret); + mgr->is_waiting_for_dwn_reply = false; list_del(&txmsg->next); if (txmsg->seqno != -1) txmsg->dst->tx_slots[txmsg->seqno] = NULL; @@ -2760,7 +2788,8 @@ static void drm_dp_queue_down_tx(struct drm_dp_mst_topology_mgr *mgr, drm_dp_mst_dump_sideband_msg_tx(&p, txmsg); } - if (list_is_singular(&mgr->tx_msg_downq)) + if (list_is_singular(&mgr->tx_msg_downq) && + !mgr->is_waiting_for_dwn_reply) process_single_down_tx_qlock(mgr); mutex_unlock(&mgr->qlock); } @@ -3678,6 +3707,7 @@ static int drm_dp_mst_handle_down_rep(struct drm_dp_mst_topology_mgr *mgr) mutex_lock(&mgr->qlock); txmsg->state = DRM_DP_SIDEBAND_TX_RX; mstb->tx_slots[slot] = NULL; + mgr->is_waiting_for_dwn_reply = false; mutex_unlock(&mgr->qlock); wake_up_all(&mgr->tx_waitq); @@ -3687,6 +3717,9 @@ static int drm_dp_mst_handle_down_rep(struct drm_dp_mst_topology_mgr *mgr) no_msg: drm_dp_mst_topology_put_mstb(mstb); clear_down_rep_recv: + mutex_lock(&mgr->qlock); + mgr->is_waiting_for_dwn_reply = false; + mutex_unlock(&mgr->qlock); memset(&mgr->down_rep_recv, 0, sizeof(struct drm_dp_sideband_msg_rx)); return 0; @@ -4497,7 +4530,7 @@ static void drm_dp_tx_work(struct work_struct *work) struct drm_dp_mst_topology_mgr *mgr = container_of(work, struct drm_dp_mst_topology_mgr, tx_work); mutex_lock(&mgr->qlock); - if (!list_empty(&mgr->tx_msg_downq)) + if (!list_empty(&mgr->tx_msg_downq) && !mgr->is_waiting_for_dwn_reply) process_single_down_tx_qlock(mgr); mutex_unlock(&mgr->qlock); } diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.h b/drivers/gpu/drm/rockchip/cdn-dp-core.h index 83c4586665b4..81ac9b658a70 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-core.h +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.h @@ -95,7 +95,7 @@ struct cdn_dp_device { struct cdn_dp_port *port[MAX_PHY]; u8 ports; u8 max_lanes; - u8 max_rate; + unsigned int max_rate; u8 lanes; int active_port; diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c index 390524143139..1635a9ff4794 100644 --- a/drivers/gpu/drm/virtio/virtgpu_plane.c +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c @@ -232,6 +232,7 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane, if (!objs) return; virtio_gpu_array_add_obj(objs, vgfb->base.obj[0]); + virtio_gpu_array_lock_resv(objs); virtio_gpu_cmd_transfer_to_host_2d (vgdev, 0, plane->state->crtc_w, |