diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 28 | ||||
| -rw-r--r-- | drivers/gpu/drm/display/drm_dp_mst_topology.c | 106 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/disp.c | 4 | ||||
| -rw-r--r-- | include/drm/display/drm_dp_mst_helper.h | 12 |
6 files changed, 81 insertions, 76 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 85fdd6baf803..cd30b02af8ee 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -6401,7 +6401,7 @@ static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder, clock = adjusted_mode->clock; dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp, false); } - dm_new_connector_state->vcpi_slots = drm_dp_atomic_find_vcpi_slots(state, + dm_new_connector_state->vcpi_slots = drm_dp_atomic_find_time_slots(state, mst_mgr, mst_port, dm_new_connector_state->pbn, diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 2e74ccf7df5b..655d63b20b33 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -472,7 +472,7 @@ static int dm_dp_mst_atomic_check(struct drm_connector *connector, return 0; } - return drm_dp_atomic_release_vcpi_slots(state, + return drm_dp_atomic_release_time_slots(state, mst_mgr, mst_port); } @@ -785,7 +785,7 @@ static bool increase_dsc_bpp(struct drm_atomic_state *state, if (initial_slack[next_index] > fair_pbn_alloc) { vars[next_index].pbn += fair_pbn_alloc; - if (drm_dp_atomic_find_vcpi_slots(state, + if (drm_dp_atomic_find_time_slots(state, params[next_index].port->mgr, params[next_index].port, vars[next_index].pbn, @@ -795,7 +795,7 @@ static bool increase_dsc_bpp(struct drm_atomic_state *state, vars[next_index].bpp_x16 = bpp_x16_from_pbn(params[next_index], vars[next_index].pbn); } else { vars[next_index].pbn -= fair_pbn_alloc; - if (drm_dp_atomic_find_vcpi_slots(state, + if (drm_dp_atomic_find_time_slots(state, params[next_index].port->mgr, params[next_index].port, vars[next_index].pbn, @@ -804,7 +804,7 @@ static bool increase_dsc_bpp(struct drm_atomic_state *state, } } else { vars[next_index].pbn += initial_slack[next_index]; - if (drm_dp_atomic_find_vcpi_slots(state, + if (drm_dp_atomic_find_time_slots(state, params[next_index].port->mgr, params[next_index].port, vars[next_index].pbn, @@ -814,7 +814,7 @@ static bool increase_dsc_bpp(struct drm_atomic_state *state, vars[next_index].bpp_x16 = params[next_index].bw_range.max_target_bpp_x16; } else { vars[next_index].pbn -= initial_slack[next_index]; - if (drm_dp_atomic_find_vcpi_slots(state, + if (drm_dp_atomic_find_time_slots(state, params[next_index].port->mgr, params[next_index].port, vars[next_index].pbn, @@ -872,7 +872,7 @@ static bool try_disable_dsc(struct drm_atomic_state *state, break; vars[next_index].pbn = kbps_to_peak_pbn(params[next_index].bw_range.stream_kbps); - if (drm_dp_atomic_find_vcpi_slots(state, + if (drm_dp_atomic_find_time_slots(state, params[next_index].port->mgr, params[next_index].port, vars[next_index].pbn, @@ -884,7 +884,7 @@ static bool try_disable_dsc(struct drm_atomic_state *state, vars[next_index].bpp_x16 = 0; } else { vars[next_index].pbn = kbps_to_peak_pbn(params[next_index].bw_range.max_kbps); - if (drm_dp_atomic_find_vcpi_slots(state, + if (drm_dp_atomic_find_time_slots(state, params[next_index].port->mgr, params[next_index].port, vars[next_index].pbn, @@ -971,11 +971,11 @@ static bool compute_mst_dsc_configs_for_link(struct drm_atomic_state *state, vars[i + k].pbn = kbps_to_peak_pbn(params[i].bw_range.stream_kbps); vars[i + k].dsc_enabled = false; vars[i + k].bpp_x16 = 0; - if (drm_dp_atomic_find_vcpi_slots(state, - params[i].port->mgr, - params[i].port, - vars[i + k].pbn, - dm_mst_get_pbn_divider(dc_link)) < 0) + if (drm_dp_atomic_find_time_slots(state, + params[i].port->mgr, + params[i].port, + vars[i + k].pbn, + dm_mst_get_pbn_divider(dc_link)) < 0) return false; } if (!drm_dp_mst_atomic_check(state) && !debugfs_overwrite) { @@ -989,7 +989,7 @@ static bool compute_mst_dsc_configs_for_link(struct drm_atomic_state *state, vars[i + k].pbn = kbps_to_peak_pbn(params[i].bw_range.min_kbps); vars[i + k].dsc_enabled = true; vars[i + k].bpp_x16 = params[i].bw_range.min_target_bpp_x16; - if (drm_dp_atomic_find_vcpi_slots(state, + if (drm_dp_atomic_find_time_slots(state, params[i].port->mgr, params[i].port, vars[i + k].pbn, @@ -999,7 +999,7 @@ static bool compute_mst_dsc_configs_for_link(struct drm_atomic_state *state, vars[i + k].pbn = kbps_to_peak_pbn(params[i].bw_range.stream_kbps); vars[i + k].dsc_enabled = false; vars[i + k].bpp_x16 = 0; - if (drm_dp_atomic_find_vcpi_slots(state, + if (drm_dp_atomic_find_time_slots(state, params[i].port->mgr, params[i].port, vars[i + k].pbn, diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c index f448e3e5ec6e..fad80ab2b9db 100644 --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c @@ -4293,11 +4293,11 @@ struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_ EXPORT_SYMBOL(drm_dp_mst_get_edid); /** - * drm_dp_find_vcpi_slots() - Find VCPI slots for this PBN value + * drm_dp_find_vcpi_slots() - Find time slots for this PBN value * @mgr: manager to use * @pbn: payload bandwidth to convert into slots. * - * Calculate the number of VCPI slots that will be required for the given PBN + * Calculate the number of time slots that will be required for the given PBN * value. This function is deprecated, and should not be used in atomic * drivers. * @@ -4334,17 +4334,17 @@ static int drm_dp_init_vcpi(struct drm_dp_mst_topology_mgr *mgr, } /** - * drm_dp_atomic_find_vcpi_slots() - Find and add VCPI slots to the state + * drm_dp_atomic_find_time_slots() - Find and add time slots to the state * @state: global atomic state * @mgr: MST topology manager for the port - * @port: port to find vcpi slots for + * @port: port to find time slots for * @pbn: bandwidth required for the mode in PBN * @pbn_div: divider for DSC mode that takes FEC into account * - * Allocates VCPI slots to @port, replacing any previous VCPI allocations it + * Allocates time slots to @port, replacing any previous timeslot allocations it * may have had. Any atomic drivers which support MST must call this function * in their &drm_encoder_helper_funcs.atomic_check() callback to change the - * current VCPI allocation for the new state, but only when + * current timeslot allocation for the new state, but only when * &drm_crtc_state.mode_changed or &drm_crtc_state.connectors_changed is set * to ensure compatibility with userspace applications that still use the * legacy modesetting UAPI. @@ -4354,17 +4354,17 @@ static int drm_dp_init_vcpi(struct drm_dp_mst_topology_mgr *mgr, * * Additionally, it is OK to call this function multiple times on the same * @port as needed. It is not OK however, to call this function and - * drm_dp_atomic_release_vcpi_slots() in the same atomic check phase. + * drm_dp_atomic_release_time_slots() in the same atomic check phase. * * See also: - * drm_dp_atomic_release_vcpi_slots() + * drm_dp_atomic_release_time_slots() * drm_dp_mst_atomic_check() * * Returns: * Total slots in the atomic state assigned for this port, or a negative error * code if the port no longer exists */ -int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state, +int drm_dp_atomic_find_time_slots(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, int pbn, int pbn_div) @@ -4381,17 +4381,17 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state, list_for_each_entry(pos, &topology_state->payloads, next) { if (pos->port == port) { payload = pos; - prev_slots = payload->vcpi; + prev_slots = payload->time_slots; prev_bw = payload->pbn; /* * This should never happen, unless the driver tries - * releasing and allocating the same VCPI allocation, + * releasing and allocating the same timeslot allocation, * which is an error */ if (WARN_ON(!prev_slots)) { drm_err(mgr->dev, - "cannot allocate and release VCPI on [MST PORT:%p] in the same state\n", + "cannot allocate and release time slots on [MST PORT:%p] in the same state\n", port); return -EINVAL; } @@ -4409,7 +4409,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state, req_slots = DIV_ROUND_UP(pbn, pbn_div); - drm_dbg_atomic(mgr->dev, "[CONNECTOR:%d:%s] [MST PORT:%p] VCPI %d -> %d\n", + drm_dbg_atomic(mgr->dev, "[CONNECTOR:%d:%s] [MST PORT:%p] TU %d -> %d\n", port->connector->base.id, port->connector->name, port, prev_slots, req_slots); drm_dbg_atomic(mgr->dev, "[CONNECTOR:%d:%s] [MST PORT:%p] PBN %d -> %d\n", @@ -4426,20 +4426,20 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state, payload->port = port; list_add(&payload->next, &topology_state->payloads); } - payload->vcpi = req_slots; + payload->time_slots = req_slots; payload->pbn = pbn; return req_slots; } -EXPORT_SYMBOL(drm_dp_atomic_find_vcpi_slots); +EXPORT_SYMBOL(drm_dp_atomic_find_time_slots); /** - * drm_dp_atomic_release_vcpi_slots() - Release allocated vcpi slots + * drm_dp_atomic_release_time_slots() - Release allocated time slots * @state: global atomic state * @mgr: MST topology manager for the port - * @port: The port to release the VCPI slots from + * @port: The port to release the time slots from * - * Releases any VCPI slots that have been allocated to a port in the atomic + * Releases any time slots that have been allocated to a port in the atomic * state. Any atomic drivers which support MST must call this function in * their &drm_connector_helper_funcs.atomic_check() callback when the * connector will no longer have VCPI allocated (e.g. because its CRTC was @@ -4448,18 +4448,18 @@ EXPORT_SYMBOL(drm_dp_atomic_find_vcpi_slots); * It is OK to call this even if @port has been removed from the system. * Additionally, it is OK to call this function multiple times on the same * @port as needed. It is not OK however, to call this function and - * drm_dp_atomic_find_vcpi_slots() on the same @port in a single atomic check + * drm_dp_atomic_find_time_slots() on the same @port in a single atomic check * phase. * * See also: - * drm_dp_atomic_find_vcpi_slots() + * drm_dp_atomic_find_time_slots() * drm_dp_mst_atomic_check() * * Returns: * 0 if all slots for this port were added back to * &drm_dp_mst_topology_state.avail_slots or negative error code */ -int drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state, +int drm_dp_atomic_release_time_slots(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port) { @@ -4483,16 +4483,16 @@ int drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state, return -EINVAL; } - drm_dbg_atomic(mgr->dev, "[MST PORT:%p] VCPI %d -> 0\n", port, pos->vcpi); - if (pos->vcpi) { + drm_dbg_atomic(mgr->dev, "[MST PORT:%p] TU %d -> 0\n", port, pos->time_slots); + if (pos->time_slots) { drm_dp_mst_put_port_malloc(port); - pos->vcpi = 0; + pos->time_slots = 0; pos->pbn = 0; } return 0; } -EXPORT_SYMBOL(drm_dp_atomic_release_vcpi_slots); +EXPORT_SYMBOL(drm_dp_atomic_release_time_slots); /** * drm_dp_mst_update_slots() - updates the slot info depending on the DP ecoding format @@ -4546,7 +4546,7 @@ bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr, ret = drm_dp_init_vcpi(mgr, &port->vcpi, pbn, slots); if (ret) { - drm_dbg_kms(mgr->dev, "failed to init vcpi slots=%d ret=%d\n", + drm_dbg_kms(mgr->dev, "failed to init time slots=%d ret=%d\n", DIV_ROUND_UP(pbn, mgr->pbn_div), ret); drm_dp_mst_topology_put_port(port); goto out; @@ -5071,8 +5071,8 @@ drm_dp_mst_duplicate_state(struct drm_private_obj *obj) INIT_LIST_HEAD(&state->payloads); list_for_each_entry(pos, &old_state->payloads, next) { - /* Prune leftover freed VCPI allocations */ - if (!pos->vcpi) + /* Prune leftover freed timeslot allocations */ + if (!pos->time_slots) continue; payload = kmemdup(pos, sizeof(*payload), GFP_KERNEL); @@ -5104,7 +5104,7 @@ static void drm_dp_mst_destroy_state(struct drm_private_obj *obj, list_for_each_entry_safe(pos, tmp, &mst_state->payloads, next) { /* We only keep references to ports with non-zero VCPIs */ - if (pos->vcpi) + if (pos->time_slots) drm_dp_mst_put_port_malloc(pos->port); kfree(pos); } @@ -5230,28 +5230,28 @@ drm_dp_mst_atomic_check_port_bw_limit(struct drm_dp_mst_port *port, } static inline int -drm_dp_mst_atomic_check_vcpi_alloc_limit(struct drm_dp_mst_topology_mgr *mgr, - struct drm_dp_mst_topology_state *mst_state) +drm_dp_mst_atomic_check_payload_alloc_limits(struct drm_dp_mst_topology_mgr *mgr, + struct drm_dp_mst_topology_state *mst_state) { struct drm_dp_mst_atomic_payload *payload; int avail_slots = mst_state->total_avail_slots, payload_count = 0; list_for_each_entry(payload, &mst_state->payloads, next) { /* Releasing payloads is always OK-even if the port is gone */ - if (!payload->vcpi) { - drm_dbg_atomic(mgr->dev, "[MST PORT:%p] releases all VCPI slots\n", + if (!payload->time_slots) { + drm_dbg_atomic(mgr->dev, "[MST PORT:%p] releases all time slots\n", payload->port); continue; } - drm_dbg_atomic(mgr->dev, "[MST PORT:%p] requires %d vcpi slots\n", - payload->port, payload->vcpi); + drm_dbg_atomic(mgr->dev, "[MST PORT:%p] requires %d time slots\n", + payload->port, payload->time_slots); - avail_slots -= payload->vcpi; + avail_slots -= payload->time_slots; if (avail_slots < 0) { drm_dbg_atomic(mgr->dev, - "[MST PORT:%p] not enough VCPI slots in mst state %p (avail=%d)\n", - payload->port, mst_state, avail_slots + payload->vcpi); + "[MST PORT:%p] not enough time slots in mst state %p (avail=%d)\n", + payload->port, mst_state, avail_slots + payload->time_slots); return -ENOSPC; } @@ -5262,7 +5262,7 @@ drm_dp_mst_atomic_check_vcpi_alloc_limit(struct drm_dp_mst_topology_mgr *mgr, return -EINVAL; } } - drm_dbg_atomic(mgr->dev, "[MST MGR:%p] mst state %p VCPI avail=%d used=%d\n", + drm_dbg_atomic(mgr->dev, "[MST MGR:%p] mst state %p TU avail=%d used=%d\n", mgr, mst_state, avail_slots, mst_state->total_avail_slots - avail_slots); return 0; @@ -5351,7 +5351,7 @@ int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state, struct drm_dp_mst_topology_state *mst_state; struct drm_dp_mst_atomic_payload *pos; bool found = false; - int vcpi = 0; + int time_slots = 0; mst_state = drm_atomic_get_mst_topology_state(state, port->mgr); @@ -5367,30 +5367,30 @@ int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state, if (!found) { drm_dbg_atomic(state->dev, - "[MST PORT:%p] Couldn't find VCPI allocation in mst state %p\n", + "[MST PORT:%p] Couldn't find payload in mst state %p\n", port, mst_state); return -EINVAL; } if (pos->dsc_enabled == enable) { drm_dbg_atomic(state->dev, - "[MST PORT:%p] DSC flag is already set to %d, returning %d VCPI slots\n", - port, enable, pos->vcpi); - vcpi = pos->vcpi; + "[MST PORT:%p] DSC flag is already set to %d, returning %d time slots\n", + port, enable, pos->time_slots); + time_slots = pos->time_slots; } if (enable) { - vcpi = drm_dp_atomic_find_vcpi_slots(state, port->mgr, port, pbn, pbn_div); + time_slots = drm_dp_atomic_find_time_slots(state, port->mgr, port, pbn, pbn_div); drm_dbg_atomic(state->dev, - "[MST PORT:%p] Enabling DSC flag, reallocating %d VCPI slots on the port\n", - port, vcpi); - if (vcpi < 0) + "[MST PORT:%p] Enabling DSC flag, reallocating %d time slots on the port\n", + port, time_slots); + if (time_slots < 0) return -EINVAL; } pos->dsc_enabled = enable; - return vcpi; + return time_slots; } EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc); /** @@ -5400,15 +5400,15 @@ EXPORT_SYMBOL(drm_dp_mst_atomic_enable_dsc); * * Checks the given topology state for an atomic update to ensure that it's * valid. This includes checking whether there's enough bandwidth to support - * the new VCPI allocations in the atomic update. + * the new timeslot allocations in the atomic update. * * Any atomic drivers supporting DP MST must make sure to call this after * checking the rest of their state in their * &drm_mode_config_funcs.atomic_check() callback. * * See also: - * drm_dp_atomic_find_vcpi_slots() - * drm_dp_atomic_release_vcpi_slots() + * drm_dp_atomic_find_time_slots() + * drm_dp_atomic_release_time_slots() * * Returns: * @@ -5424,7 +5424,7 @@ int drm_dp_mst_atomic_check(struct drm_atomic_state *state) if (!mgr->mst_state) continue; - ret = drm_dp_mst_atomic_check_vcpi_alloc_limit(mgr, mst_state); + ret = drm_dp_mst_atomic_check_payload_alloc_limits(mgr, mst_state); if (ret) break; diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 14d2a64193b2..1cebbc51d8fa 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -70,7 +70,7 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder, crtc_state->pipe_bpp, false); - slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr, + slots = drm_dp_atomic_find_time_slots(state, &intel_dp->mst_mgr, connector->port, crtc_state->pbn, drm_dp_get_vc_payload_bw(&intel_dp->mst_mgr, @@ -344,8 +344,7 @@ intel_dp_mst_atomic_check(struct drm_connector *connector, } mgr = &enc_to_mst(to_intel_encoder(old_conn_state->best_encoder))->primary->dp.mst_mgr; - ret = drm_dp_atomic_release_vcpi_slots(&state->base, mgr, - intel_connector->port); + ret = drm_dp_atomic_release_time_slots(&state->base, mgr, intel_connector->port); return ret; } diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index c8fedd7d227f..1d54f2cd38b2 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -1065,7 +1065,7 @@ nv50_msto_atomic_check(struct drm_encoder *encoder, false); } - slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr, mstc->port, + slots = drm_dp_atomic_find_time_slots(state, &mstm->mgr, mstc->port, asyh->dp.pbn, 0); if (slots < 0) return slots; @@ -1277,7 +1277,7 @@ nv50_mstc_atomic_check(struct drm_connector *connector, return 0; } - return drm_dp_atomic_release_vcpi_slots(state, mgr, mstc->port); + return drm_dp_atomic_release_time_slots(state, mgr, mstc->port); } static int diff --git a/include/drm/display/drm_dp_mst_helper.h b/include/drm/display/drm_dp_mst_helper.h index 5671173f9f37..9cdd2def56a1 100644 --- a/include/drm/display/drm_dp_mst_helper.h +++ b/include/drm/display/drm_dp_mst_helper.h @@ -544,7 +544,13 @@ struct drm_dp_payload { struct drm_dp_mst_atomic_payload { struct drm_dp_mst_port *port; - int vcpi; + + /** + * @time_slots: + * The number of timeslots allocated to this payload from the source DP Tx to + * the immediate downstream DP Rx + */ + int time_slots; int pbn; bool dsc_enabled; struct list_head next; @@ -846,7 +852,7 @@ void drm_dp_mst_connector_early_unregister(struct drm_connector *connector, struct drm_dp_mst_topology_state *drm_atomic_get_mst_topology_state(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr); int __must_check -drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state, +drm_dp_atomic_find_time_slots(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, int pbn, int pbn_div); @@ -858,7 +864,7 @@ int __must_check drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr); int __must_check -drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state, +drm_dp_atomic_release_time_slots(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port); int drm_dp_send_power_updown_phy(struct drm_dp_mst_topology_mgr *mgr, |