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![Maarten Lankhorst](/assets/img/avatar_default.png)
We are still looking at drm_crtc_state in a few places, convert those to use intel_crtc_state instead. Changes since v1: - Move to before uapi/hw split. - Add hunks for intel_pm.c as well. Changes since v2: - Incorporate Ville's feedback. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191031112610.27608-1-maarten.lankhorst@linux.intel.com
705 lines
22 KiB
C
705 lines
22 KiB
C
/*
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* Copyright © 2008 Intel Corporation
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* 2014 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_probe_helper.h>
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#include "i915_drv.h"
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#include "intel_atomic.h"
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#include "intel_audio.h"
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#include "intel_connector.h"
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#include "intel_ddi.h"
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#include "intel_display_types.h"
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#include "intel_dp.h"
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#include "intel_dp_mst.h"
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#include "intel_dpio_phy.h"
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static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder,
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struct intel_crtc_state *crtc_state,
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struct drm_connector_state *conn_state,
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struct link_config_limits *limits)
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{
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struct drm_atomic_state *state = crtc_state->base.state;
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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struct intel_dp *intel_dp = &intel_mst->primary->dp;
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struct intel_connector *connector =
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to_intel_connector(conn_state->connector);
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const struct drm_display_mode *adjusted_mode =
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&crtc_state->base.adjusted_mode;
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void *port = connector->port;
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bool constant_n = drm_dp_has_quirk(&intel_dp->desc,
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DP_DPCD_QUIRK_CONSTANT_N);
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int bpp, slots = -EINVAL;
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crtc_state->lane_count = limits->max_lane_count;
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crtc_state->port_clock = limits->max_clock;
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for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) {
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crtc_state->pipe_bpp = bpp;
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crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock,
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crtc_state->pipe_bpp);
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slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr,
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port, crtc_state->pbn);
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if (slots == -EDEADLK)
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return slots;
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if (slots >= 0)
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break;
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}
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if (slots < 0) {
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DRM_DEBUG_KMS("failed finding vcpi slots:%d\n", slots);
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return slots;
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}
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intel_link_compute_m_n(crtc_state->pipe_bpp,
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crtc_state->lane_count,
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adjusted_mode->crtc_clock,
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crtc_state->port_clock,
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&crtc_state->dp_m_n,
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constant_n, crtc_state->fec_enable);
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crtc_state->dp_m_n.tu = slots;
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return 0;
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}
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static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
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struct intel_crtc_state *pipe_config,
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struct drm_connector_state *conn_state)
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{
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struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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struct intel_dp *intel_dp = &intel_mst->primary->dp;
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struct intel_connector *connector =
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to_intel_connector(conn_state->connector);
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struct intel_digital_connector_state *intel_conn_state =
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to_intel_digital_connector_state(conn_state);
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const struct drm_display_mode *adjusted_mode =
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&pipe_config->base.adjusted_mode;
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void *port = connector->port;
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struct link_config_limits limits;
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int ret;
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if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
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return -EINVAL;
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pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
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pipe_config->has_pch_encoder = false;
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if (intel_conn_state->force_audio == HDMI_AUDIO_AUTO)
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pipe_config->has_audio =
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drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, port);
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else
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pipe_config->has_audio =
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intel_conn_state->force_audio == HDMI_AUDIO_ON;
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/*
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* for MST we always configure max link bw - the spec doesn't
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* seem to suggest we should do otherwise.
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*/
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limits.min_clock =
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limits.max_clock = intel_dp_max_link_rate(intel_dp);
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limits.min_lane_count =
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limits.max_lane_count = intel_dp_max_lane_count(intel_dp);
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limits.min_bpp = intel_dp_min_bpp(pipe_config);
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/*
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* FIXME: If all the streams can't fit into the link with
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* their current pipe_bpp we should reduce pipe_bpp across
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* the board until things start to fit. Until then we
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* limit to <= 8bpc since that's what was hardcoded for all
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* MST streams previously. This hack should be removed once
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* we have the proper retry logic in place.
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*/
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limits.max_bpp = min(pipe_config->pipe_bpp, 24);
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intel_dp_adjust_compliance_config(intel_dp, pipe_config, &limits);
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ret = intel_dp_mst_compute_link_config(encoder, pipe_config,
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conn_state, &limits);
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if (ret)
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return ret;
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pipe_config->limited_color_range =
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intel_dp_limited_color_range(pipe_config, conn_state);
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if (IS_GEN9_LP(dev_priv))
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pipe_config->lane_lat_optim_mask =
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bxt_ddi_phy_calc_lane_lat_optim_mask(pipe_config->lane_count);
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intel_ddi_compute_min_voltage_level(dev_priv, pipe_config);
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return 0;
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}
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static int
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intel_dp_mst_atomic_check(struct drm_connector *connector,
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struct drm_atomic_state *state)
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{
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struct drm_connector_state *new_conn_state =
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drm_atomic_get_new_connector_state(state, connector);
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struct drm_connector_state *old_conn_state =
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drm_atomic_get_old_connector_state(state, connector);
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struct intel_connector *intel_connector =
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to_intel_connector(connector);
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struct drm_crtc *new_crtc = new_conn_state->crtc;
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struct drm_dp_mst_topology_mgr *mgr;
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int ret;
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ret = intel_digital_connector_atomic_check(connector, state);
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if (ret)
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return ret;
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if (!old_conn_state->crtc)
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return 0;
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/* We only want to free VCPI if this state disables the CRTC on this
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* connector
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*/
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if (new_crtc) {
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struct intel_atomic_state *intel_state =
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to_intel_atomic_state(state);
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struct intel_crtc *intel_crtc = to_intel_crtc(new_crtc);
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struct intel_crtc_state *crtc_state =
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intel_atomic_get_new_crtc_state(intel_state,
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intel_crtc);
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if (!crtc_state ||
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!drm_atomic_crtc_needs_modeset(&crtc_state->base) ||
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crtc_state->base.enable)
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return 0;
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}
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mgr = &enc_to_mst(old_conn_state->best_encoder)->primary->dp.mst_mgr;
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ret = drm_dp_atomic_release_vcpi_slots(state, mgr,
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intel_connector->port);
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return ret;
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}
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static void intel_mst_disable_dp(struct intel_encoder *encoder,
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const struct intel_crtc_state *old_crtc_state,
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const struct drm_connector_state *old_conn_state)
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{
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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struct intel_digital_port *intel_dig_port = intel_mst->primary;
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struct intel_dp *intel_dp = &intel_dig_port->dp;
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struct intel_connector *connector =
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to_intel_connector(old_conn_state->connector);
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int ret;
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DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links);
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drm_dp_mst_reset_vcpi_slots(&intel_dp->mst_mgr, connector->port);
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ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr);
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if (ret) {
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DRM_DEBUG_KMS("failed to update payload %d\n", ret);
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}
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if (old_crtc_state->has_audio)
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intel_audio_codec_disable(encoder,
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old_crtc_state, old_conn_state);
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}
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static void intel_mst_post_disable_dp(struct intel_encoder *encoder,
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const struct intel_crtc_state *old_crtc_state,
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const struct drm_connector_state *old_conn_state)
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{
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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struct intel_digital_port *intel_dig_port = intel_mst->primary;
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struct intel_dp *intel_dp = &intel_dig_port->dp;
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struct intel_connector *connector =
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to_intel_connector(old_conn_state->connector);
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intel_ddi_disable_pipe_clock(old_crtc_state);
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/* this can fail */
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drm_dp_check_act_status(&intel_dp->mst_mgr);
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/* and this can also fail */
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drm_dp_update_payload_part2(&intel_dp->mst_mgr);
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drm_dp_mst_deallocate_vcpi(&intel_dp->mst_mgr, connector->port);
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/*
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* Power down mst path before disabling the port, otherwise we end
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* up getting interrupts from the sink upon detecting link loss.
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*/
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drm_dp_send_power_updown_phy(&intel_dp->mst_mgr, connector->port,
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false);
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intel_dp->active_mst_links--;
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intel_mst->connector = NULL;
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if (intel_dp->active_mst_links == 0) {
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intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
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intel_dig_port->base.post_disable(&intel_dig_port->base,
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old_crtc_state, NULL);
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}
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DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links);
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}
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static void intel_mst_pre_pll_enable_dp(struct intel_encoder *encoder,
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const struct intel_crtc_state *pipe_config,
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const struct drm_connector_state *conn_state)
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{
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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struct intel_digital_port *intel_dig_port = intel_mst->primary;
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struct intel_dp *intel_dp = &intel_dig_port->dp;
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if (intel_dp->active_mst_links == 0)
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intel_dig_port->base.pre_pll_enable(&intel_dig_port->base,
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pipe_config, NULL);
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}
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static void intel_mst_post_pll_disable_dp(struct intel_encoder *encoder,
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const struct intel_crtc_state *old_crtc_state,
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const struct drm_connector_state *old_conn_state)
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{
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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struct intel_digital_port *intel_dig_port = intel_mst->primary;
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struct intel_dp *intel_dp = &intel_dig_port->dp;
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if (intel_dp->active_mst_links == 0)
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intel_dig_port->base.post_pll_disable(&intel_dig_port->base,
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old_crtc_state,
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old_conn_state);
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}
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static void intel_mst_pre_enable_dp(struct intel_encoder *encoder,
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const struct intel_crtc_state *pipe_config,
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const struct drm_connector_state *conn_state)
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{
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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struct intel_digital_port *intel_dig_port = intel_mst->primary;
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struct intel_dp *intel_dp = &intel_dig_port->dp;
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struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
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struct intel_connector *connector =
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to_intel_connector(conn_state->connector);
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int ret;
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u32 temp;
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/* MST encoders are bound to a crtc, not to a connector,
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* force the mapping here for get_hw_state.
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*/
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connector->encoder = encoder;
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intel_mst->connector = connector;
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DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links);
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if (intel_dp->active_mst_links == 0)
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intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
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drm_dp_send_power_updown_phy(&intel_dp->mst_mgr, connector->port, true);
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if (intel_dp->active_mst_links == 0)
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intel_dig_port->base.pre_enable(&intel_dig_port->base,
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pipe_config, NULL);
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ret = drm_dp_mst_allocate_vcpi(&intel_dp->mst_mgr,
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connector->port,
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pipe_config->pbn,
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pipe_config->dp_m_n.tu);
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if (!ret)
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DRM_ERROR("failed to allocate vcpi\n");
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intel_dp->active_mst_links++;
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temp = I915_READ(intel_dp->regs.dp_tp_status);
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I915_WRITE(intel_dp->regs.dp_tp_status, temp);
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ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr);
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intel_ddi_enable_pipe_clock(pipe_config);
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}
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static void intel_mst_enable_dp(struct intel_encoder *encoder,
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const struct intel_crtc_state *pipe_config,
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const struct drm_connector_state *conn_state)
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{
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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struct intel_digital_port *intel_dig_port = intel_mst->primary;
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struct intel_dp *intel_dp = &intel_dig_port->dp;
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struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
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DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links);
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if (intel_de_wait_for_set(dev_priv, intel_dp->regs.dp_tp_status,
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DP_TP_STATUS_ACT_SENT, 1))
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DRM_ERROR("Timed out waiting for ACT sent\n");
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drm_dp_check_act_status(&intel_dp->mst_mgr);
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drm_dp_update_payload_part2(&intel_dp->mst_mgr);
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if (pipe_config->has_audio)
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intel_audio_codec_enable(encoder, pipe_config, conn_state);
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}
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static bool intel_dp_mst_enc_get_hw_state(struct intel_encoder *encoder,
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enum pipe *pipe)
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{
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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*pipe = intel_mst->pipe;
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if (intel_mst->connector)
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return true;
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return false;
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}
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static void intel_dp_mst_enc_get_config(struct intel_encoder *encoder,
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struct intel_crtc_state *pipe_config)
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{
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struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
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struct intel_digital_port *intel_dig_port = intel_mst->primary;
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intel_ddi_get_config(&intel_dig_port->base, pipe_config);
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}
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static int intel_dp_mst_get_ddc_modes(struct drm_connector *connector)
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{
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struct intel_connector *intel_connector = to_intel_connector(connector);
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struct intel_dp *intel_dp = intel_connector->mst_port;
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struct edid *edid;
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int ret;
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if (drm_connector_is_unregistered(connector))
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return intel_connector_update_modes(connector, NULL);
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edid = drm_dp_mst_get_edid(connector, &intel_dp->mst_mgr, intel_connector->port);
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ret = intel_connector_update_modes(connector, edid);
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kfree(edid);
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return ret;
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}
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static enum drm_connector_status
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intel_dp_mst_detect(struct drm_connector *connector, bool force)
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{
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struct intel_connector *intel_connector = to_intel_connector(connector);
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struct intel_dp *intel_dp = intel_connector->mst_port;
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if (drm_connector_is_unregistered(connector))
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return connector_status_disconnected;
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return drm_dp_mst_detect_port(connector, &intel_dp->mst_mgr,
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intel_connector->port);
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}
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static const struct drm_connector_funcs intel_dp_mst_connector_funcs = {
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.detect = intel_dp_mst_detect,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.atomic_get_property = intel_digital_connector_atomic_get_property,
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.atomic_set_property = intel_digital_connector_atomic_set_property,
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.late_register = intel_connector_register,
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.early_unregister = intel_connector_unregister,
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.destroy = intel_connector_destroy,
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.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
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.atomic_duplicate_state = intel_digital_connector_duplicate_state,
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};
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static int intel_dp_mst_get_modes(struct drm_connector *connector)
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{
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return intel_dp_mst_get_ddc_modes(connector);
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}
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static enum drm_mode_status
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intel_dp_mst_mode_valid(struct drm_connector *connector,
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struct drm_display_mode *mode)
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{
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struct drm_i915_private *dev_priv = to_i915(connector->dev);
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struct intel_connector *intel_connector = to_intel_connector(connector);
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struct intel_dp *intel_dp = intel_connector->mst_port;
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int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
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int max_rate, mode_rate, max_lanes, max_link_clock;
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if (drm_connector_is_unregistered(connector))
|
|
return MODE_ERROR;
|
|
|
|
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
|
|
return MODE_NO_DBLESCAN;
|
|
|
|
max_link_clock = intel_dp_max_link_rate(intel_dp);
|
|
max_lanes = intel_dp_max_lane_count(intel_dp);
|
|
|
|
max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes);
|
|
mode_rate = intel_dp_link_required(mode->clock, 18);
|
|
|
|
/* TODO - validate mode against available PBN for link */
|
|
if (mode->clock < 10000)
|
|
return MODE_CLOCK_LOW;
|
|
|
|
if (mode->flags & DRM_MODE_FLAG_DBLCLK)
|
|
return MODE_H_ILLEGAL;
|
|
|
|
if (mode_rate > max_rate || mode->clock > max_dotclk)
|
|
return MODE_CLOCK_HIGH;
|
|
|
|
return intel_mode_valid_max_plane_size(dev_priv, mode);
|
|
}
|
|
|
|
static struct drm_encoder *intel_mst_atomic_best_encoder(struct drm_connector *connector,
|
|
struct drm_connector_state *state)
|
|
{
|
|
struct intel_connector *intel_connector = to_intel_connector(connector);
|
|
struct intel_dp *intel_dp = intel_connector->mst_port;
|
|
struct intel_crtc *crtc = to_intel_crtc(state->crtc);
|
|
|
|
return &intel_dp->mst_encoders[crtc->pipe]->base.base;
|
|
}
|
|
|
|
static const struct drm_connector_helper_funcs intel_dp_mst_connector_helper_funcs = {
|
|
.get_modes = intel_dp_mst_get_modes,
|
|
.mode_valid = intel_dp_mst_mode_valid,
|
|
.atomic_best_encoder = intel_mst_atomic_best_encoder,
|
|
.atomic_check = intel_dp_mst_atomic_check,
|
|
};
|
|
|
|
static void intel_dp_mst_encoder_destroy(struct drm_encoder *encoder)
|
|
{
|
|
struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
|
|
|
|
drm_encoder_cleanup(encoder);
|
|
kfree(intel_mst);
|
|
}
|
|
|
|
static const struct drm_encoder_funcs intel_dp_mst_enc_funcs = {
|
|
.destroy = intel_dp_mst_encoder_destroy,
|
|
};
|
|
|
|
static bool intel_dp_mst_get_hw_state(struct intel_connector *connector)
|
|
{
|
|
if (connector->encoder && connector->base.state->crtc) {
|
|
enum pipe pipe;
|
|
if (!connector->encoder->get_hw_state(connector->encoder, &pipe))
|
|
return false;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *pathprop)
|
|
{
|
|
struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
|
|
struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
|
|
struct drm_device *dev = intel_dig_port->base.base.dev;
|
|
struct drm_i915_private *dev_priv = to_i915(dev);
|
|
struct intel_connector *intel_connector;
|
|
struct drm_connector *connector;
|
|
enum pipe pipe;
|
|
int ret;
|
|
|
|
intel_connector = intel_connector_alloc();
|
|
if (!intel_connector)
|
|
return NULL;
|
|
|
|
intel_connector->get_hw_state = intel_dp_mst_get_hw_state;
|
|
intel_connector->mst_port = intel_dp;
|
|
intel_connector->port = port;
|
|
drm_dp_mst_get_port_malloc(port);
|
|
|
|
connector = &intel_connector->base;
|
|
ret = drm_connector_init(dev, connector, &intel_dp_mst_connector_funcs,
|
|
DRM_MODE_CONNECTOR_DisplayPort);
|
|
if (ret) {
|
|
intel_connector_free(intel_connector);
|
|
return NULL;
|
|
}
|
|
|
|
drm_connector_helper_add(connector, &intel_dp_mst_connector_helper_funcs);
|
|
|
|
for_each_pipe(dev_priv, pipe) {
|
|
struct drm_encoder *enc =
|
|
&intel_dp->mst_encoders[pipe]->base.base;
|
|
|
|
ret = drm_connector_attach_encoder(&intel_connector->base, enc);
|
|
if (ret)
|
|
goto err;
|
|
}
|
|
|
|
drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0);
|
|
drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0);
|
|
|
|
ret = drm_connector_set_path_property(connector, pathprop);
|
|
if (ret)
|
|
goto err;
|
|
|
|
intel_attach_force_audio_property(connector);
|
|
intel_attach_broadcast_rgb_property(connector);
|
|
|
|
/*
|
|
* Reuse the prop from the SST connector because we're
|
|
* not allowed to create new props after device registration.
|
|
*/
|
|
connector->max_bpc_property =
|
|
intel_dp->attached_connector->base.max_bpc_property;
|
|
if (connector->max_bpc_property)
|
|
drm_connector_attach_max_bpc_property(connector, 6, 12);
|
|
|
|
return connector;
|
|
|
|
err:
|
|
drm_connector_cleanup(connector);
|
|
return NULL;
|
|
}
|
|
|
|
static void intel_dp_register_mst_connector(struct drm_connector *connector)
|
|
{
|
|
struct drm_i915_private *dev_priv = to_i915(connector->dev);
|
|
|
|
if (dev_priv->fbdev)
|
|
drm_fb_helper_add_one_connector(&dev_priv->fbdev->helper,
|
|
connector);
|
|
|
|
drm_connector_register(connector);
|
|
}
|
|
|
|
static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
|
|
struct drm_connector *connector)
|
|
{
|
|
struct drm_i915_private *dev_priv = to_i915(connector->dev);
|
|
|
|
DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id, connector->name);
|
|
drm_connector_unregister(connector);
|
|
|
|
if (dev_priv->fbdev)
|
|
drm_fb_helper_remove_one_connector(&dev_priv->fbdev->helper,
|
|
connector);
|
|
|
|
drm_connector_put(connector);
|
|
}
|
|
|
|
static const struct drm_dp_mst_topology_cbs mst_cbs = {
|
|
.add_connector = intel_dp_add_mst_connector,
|
|
.register_connector = intel_dp_register_mst_connector,
|
|
.destroy_connector = intel_dp_destroy_mst_connector,
|
|
};
|
|
|
|
static struct intel_dp_mst_encoder *
|
|
intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum pipe pipe)
|
|
{
|
|
struct intel_dp_mst_encoder *intel_mst;
|
|
struct intel_encoder *intel_encoder;
|
|
struct drm_device *dev = intel_dig_port->base.base.dev;
|
|
|
|
intel_mst = kzalloc(sizeof(*intel_mst), GFP_KERNEL);
|
|
|
|
if (!intel_mst)
|
|
return NULL;
|
|
|
|
intel_mst->pipe = pipe;
|
|
intel_encoder = &intel_mst->base;
|
|
intel_mst->primary = intel_dig_port;
|
|
|
|
drm_encoder_init(dev, &intel_encoder->base, &intel_dp_mst_enc_funcs,
|
|
DRM_MODE_ENCODER_DPMST, "DP-MST %c", pipe_name(pipe));
|
|
|
|
intel_encoder->type = INTEL_OUTPUT_DP_MST;
|
|
intel_encoder->power_domain = intel_dig_port->base.power_domain;
|
|
intel_encoder->port = intel_dig_port->base.port;
|
|
intel_encoder->cloneable = 0;
|
|
/*
|
|
* This is wrong, but broken userspace uses the intersection
|
|
* of possible_crtcs of all the encoders of a given connector
|
|
* to figure out which crtcs can drive said connector. What
|
|
* should be used instead is the union of possible_crtcs.
|
|
* To keep such userspace functioning we must misconfigure
|
|
* this to make sure the intersection is not empty :(
|
|
*/
|
|
intel_encoder->pipe_mask = ~0;
|
|
|
|
intel_encoder->compute_config = intel_dp_mst_compute_config;
|
|
intel_encoder->disable = intel_mst_disable_dp;
|
|
intel_encoder->post_disable = intel_mst_post_disable_dp;
|
|
intel_encoder->pre_pll_enable = intel_mst_pre_pll_enable_dp;
|
|
intel_encoder->post_pll_disable = intel_mst_post_pll_disable_dp;
|
|
intel_encoder->pre_enable = intel_mst_pre_enable_dp;
|
|
intel_encoder->enable = intel_mst_enable_dp;
|
|
intel_encoder->get_hw_state = intel_dp_mst_enc_get_hw_state;
|
|
intel_encoder->get_config = intel_dp_mst_enc_get_config;
|
|
|
|
return intel_mst;
|
|
|
|
}
|
|
|
|
static bool
|
|
intel_dp_create_fake_mst_encoders(struct intel_digital_port *intel_dig_port)
|
|
{
|
|
struct intel_dp *intel_dp = &intel_dig_port->dp;
|
|
struct drm_i915_private *dev_priv = to_i915(intel_dig_port->base.base.dev);
|
|
enum pipe pipe;
|
|
|
|
for_each_pipe(dev_priv, pipe)
|
|
intel_dp->mst_encoders[pipe] = intel_dp_create_fake_mst_encoder(intel_dig_port, pipe);
|
|
return true;
|
|
}
|
|
|
|
int
|
|
intel_dp_mst_encoder_active_links(struct intel_digital_port *intel_dig_port)
|
|
{
|
|
return intel_dig_port->dp.active_mst_links;
|
|
}
|
|
|
|
int
|
|
intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_base_id)
|
|
{
|
|
struct drm_i915_private *i915 = to_i915(intel_dig_port->base.base.dev);
|
|
struct intel_dp *intel_dp = &intel_dig_port->dp;
|
|
enum port port = intel_dig_port->base.port;
|
|
int ret;
|
|
|
|
if (!HAS_DP_MST(i915) || intel_dp_is_edp(intel_dp))
|
|
return 0;
|
|
|
|
if (INTEL_GEN(i915) < 12 && port == PORT_A)
|
|
return 0;
|
|
|
|
if (INTEL_GEN(i915) < 11 && port == PORT_E)
|
|
return 0;
|
|
|
|
intel_dp->mst_mgr.cbs = &mst_cbs;
|
|
|
|
/* create encoders */
|
|
intel_dp_create_fake_mst_encoders(intel_dig_port);
|
|
ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, &i915->drm,
|
|
&intel_dp->aux, 16, 3, conn_base_id);
|
|
if (ret)
|
|
return ret;
|
|
|
|
intel_dp->can_mst = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port)
|
|
{
|
|
struct intel_dp *intel_dp = &intel_dig_port->dp;
|
|
|
|
if (!intel_dp->can_mst)
|
|
return;
|
|
|
|
drm_dp_mst_topology_mgr_destroy(&intel_dp->mst_mgr);
|
|
/* encoders will get killed by normal cleanup */
|
|
}
|