Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Jani Nikula | 3213 | 99.91% | 6 | 85.71% |
Ville Syrjälä | 3 | 0.09% | 1 | 14.29% |
Total | 3216 | 7 |
// SPDX-License-Identifier: MIT /* * Copyright © 2022 Intel Corporation * * Read out the current hardware modeset state, and sanitize it to the current * state. */ #include <drm/drm_atomic_uapi.h> #include <drm/drm_atomic_state_helper.h> #include "i915_drv.h" #include "intel_atomic.h" #include "intel_bw.h" #include "intel_color.h" #include "intel_crtc.h" #include "intel_crtc_state_dump.h" #include "intel_ddi.h" #include "intel_de.h" #include "intel_display.h" #include "intel_display_power.h" #include "intel_display_types.h" #include "intel_modeset_setup.h" #include "intel_pch_display.h" #include "intel_pm.h" #include "skl_watermark.h" static void intel_crtc_disable_noatomic(struct intel_crtc *crtc, struct drm_modeset_acquire_ctx *ctx) { struct intel_encoder *encoder; struct drm_i915_private *i915 = to_i915(crtc->base.dev); struct intel_bw_state *bw_state = to_intel_bw_state(i915->display.bw.obj.state); struct intel_cdclk_state *cdclk_state = to_intel_cdclk_state(i915->display.cdclk.obj.state); struct intel_dbuf_state *dbuf_state = to_intel_dbuf_state(i915->display.dbuf.obj.state); struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); struct intel_plane *plane; struct drm_atomic_state *state; struct intel_crtc_state *temp_crtc_state; enum pipe pipe = crtc->pipe; int ret; if (!crtc_state->hw.active) return; for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) { const struct intel_plane_state *plane_state = to_intel_plane_state(plane->base.state); if (plane_state->uapi.visible) intel_plane_disable_noatomic(crtc, plane); } state = drm_atomic_state_alloc(&i915->drm); if (!state) { drm_dbg_kms(&i915->drm, "failed to disable [CRTC:%d:%s], out of memory", crtc->base.base.id, crtc->base.name); return; } state->acquire_ctx = ctx; /* Everything's already locked, -EDEADLK can't happen. */ temp_crtc_state = intel_atomic_get_crtc_state(state, crtc); ret = drm_atomic_add_affected_connectors(state, &crtc->base); drm_WARN_ON(&i915->drm, IS_ERR(temp_crtc_state) || ret); i915->display.funcs.display->crtc_disable(to_intel_atomic_state(state), crtc); drm_atomic_state_put(state); drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] hw state adjusted, was enabled, now disabled\n", crtc->base.base.id, crtc->base.name); crtc->active = false; crtc->base.enabled = false; drm_WARN_ON(&i915->drm, drm_atomic_set_mode_for_crtc(&crtc_state->uapi, NULL) < 0); crtc_state->uapi.active = false; crtc_state->uapi.connector_mask = 0; crtc_state->uapi.encoder_mask = 0; intel_crtc_free_hw_state(crtc_state); memset(&crtc_state->hw, 0, sizeof(crtc_state->hw)); for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder) encoder->base.crtc = NULL; intel_fbc_disable(crtc); intel_update_watermarks(i915); intel_disable_shared_dpll(crtc_state); intel_display_power_put_all_in_set(i915, &crtc->enabled_power_domains); cdclk_state->min_cdclk[pipe] = 0; cdclk_state->min_voltage_level[pipe] = 0; cdclk_state->active_pipes &= ~BIT(pipe); dbuf_state->active_pipes &= ~BIT(pipe); bw_state->data_rate[pipe] = 0; bw_state->num_active_planes[pipe] = 0; } static void intel_modeset_update_connector_atomic_state(struct drm_i915_private *i915) { struct intel_connector *connector; struct drm_connector_list_iter conn_iter; drm_connector_list_iter_begin(&i915->drm, &conn_iter); for_each_intel_connector_iter(connector, &conn_iter) { struct drm_connector_state *conn_state = connector->base.state; struct intel_encoder *encoder = to_intel_encoder(connector->base.encoder); if (conn_state->crtc) drm_connector_put(&connector->base); if (encoder) { struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); const struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); conn_state->best_encoder = &encoder->base; conn_state->crtc = &crtc->base; conn_state->max_bpc = (crtc_state->pipe_bpp ?: 24) / 3; drm_connector_get(&connector->base); } else { conn_state->best_encoder = NULL; conn_state->crtc = NULL; } } drm_connector_list_iter_end(&conn_iter); } static void intel_crtc_copy_hw_to_uapi_state(struct intel_crtc_state *crtc_state) { if (intel_crtc_is_bigjoiner_slave(crtc_state)) return; crtc_state->uapi.enable = crtc_state->hw.enable; crtc_state->uapi.active = crtc_state->hw.active; drm_WARN_ON(crtc_state->uapi.crtc->dev, drm_atomic_set_mode_for_crtc(&crtc_state->uapi, &crtc_state->hw.mode) < 0); crtc_state->uapi.adjusted_mode = crtc_state->hw.adjusted_mode; crtc_state->uapi.scaling_filter = crtc_state->hw.scaling_filter; drm_property_replace_blob(&crtc_state->uapi.degamma_lut, crtc_state->hw.degamma_lut); drm_property_replace_blob(&crtc_state->uapi.gamma_lut, crtc_state->hw.gamma_lut); drm_property_replace_blob(&crtc_state->uapi.ctm, crtc_state->hw.ctm); } static void intel_sanitize_plane_mapping(struct drm_i915_private *i915) { struct intel_crtc *crtc; if (DISPLAY_VER(i915) >= 4) return; for_each_intel_crtc(&i915->drm, crtc) { struct intel_plane *plane = to_intel_plane(crtc->base.primary); struct intel_crtc *plane_crtc; enum pipe pipe; if (!plane->get_hw_state(plane, &pipe)) continue; if (pipe == crtc->pipe) continue; drm_dbg_kms(&i915->drm, "[PLANE:%d:%s] attached to the wrong pipe, disabling plane\n", plane->base.base.id, plane->base.name); plane_crtc = intel_crtc_for_pipe(i915, pipe); intel_plane_disable_noatomic(plane_crtc, plane); } } static bool intel_crtc_has_encoders(struct intel_crtc *crtc) { struct drm_device *dev = crtc->base.dev; struct intel_encoder *encoder; for_each_encoder_on_crtc(dev, &crtc->base, encoder) return true; return false; } static struct intel_connector *intel_encoder_find_connector(struct intel_encoder *encoder) { struct drm_device *dev = encoder->base.dev; struct intel_connector *connector; for_each_connector_on_encoder(dev, &encoder->base, connector) return connector; return NULL; } static void intel_sanitize_fifo_underrun_reporting(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *i915 = to_i915(crtc->base.dev); if (!crtc_state->hw.active && !HAS_GMCH(i915)) return; /* * We start out with underrun reporting disabled to avoid races. * For correct bookkeeping mark this on active crtcs. * * Also on gmch platforms we dont have any hardware bits to * disable the underrun reporting. Which means we need to start * out with underrun reporting disabled also on inactive pipes, * since otherwise we'll complain about the garbage we read when * e.g. coming up after runtime pm. * * No protection against concurrent access is required - at * worst a fifo underrun happens which also sets this to false. */ crtc->cpu_fifo_underrun_disabled = true; /* * We track the PCH trancoder underrun reporting state * within the crtc. With crtc for pipe A housing the underrun * reporting state for PCH transcoder A, crtc for pipe B housing * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A, * and marking underrun reporting as disabled for the non-existing * PCH transcoders B and C would prevent enabling the south * error interrupt (see cpt_can_enable_serr_int()). */ if (intel_has_pch_trancoder(i915, crtc->pipe)) crtc->pch_fifo_underrun_disabled = true; } static void intel_sanitize_crtc(struct intel_crtc *crtc, struct drm_modeset_acquire_ctx *ctx) { struct drm_i915_private *i915 = to_i915(crtc->base.dev); struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); if (crtc_state->hw.active) { struct intel_plane *plane; /* Disable everything but the primary plane */ for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) { const struct intel_plane_state *plane_state = to_intel_plane_state(plane->base.state); if (plane_state->uapi.visible && plane->base.type != DRM_PLANE_TYPE_PRIMARY) intel_plane_disable_noatomic(crtc, plane); } /* Disable any background color/etc. set by the BIOS */ intel_color_commit_noarm(crtc_state); intel_color_commit_arm(crtc_state); } /* * Adjust the state of the output pipe according to whether we have * active connectors/encoders. */ if (crtc_state->hw.active && !intel_crtc_has_encoders(crtc) && !intel_crtc_is_bigjoiner_slave(crtc_state)) intel_crtc_disable_noatomic(crtc, ctx); } static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev); /* * Some SNB BIOSen (eg. ASUS K53SV) are known to misprogram * the hardware when a high res displays plugged in. DPLL P * divider is zero, and the pipe timings are bonkers. We'll * try to disable everything in that case. * * FIXME would be nice to be able to sanitize this state * without several WARNs, but for now let's take the easy * road. */ return IS_SANDYBRIDGE(i915) && crtc_state->hw.active && crtc_state->shared_dpll && crtc_state->port_clock == 0; } static void intel_sanitize_encoder(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_connector *connector; struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); struct intel_crtc_state *crtc_state = crtc ? to_intel_crtc_state(crtc->base.state) : NULL; /* * We need to check both for a crtc link (meaning that the encoder is * active and trying to read from a pipe) and the pipe itself being * active. */ bool has_active_crtc = crtc_state && crtc_state->hw.active; if (crtc_state && has_bogus_dpll_config(crtc_state)) { drm_dbg_kms(&i915->drm, "BIOS has misprogrammed the hardware. Disabling pipe %c\n", pipe_name(crtc->pipe)); has_active_crtc = false; } connector = intel_encoder_find_connector(encoder); if (connector && !has_active_crtc) { drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s] has active connectors but no active pipe!\n", encoder->base.base.id, encoder->base.name); /* * Connector is active, but has no active pipe. This is fallout * from our resume register restoring. Disable the encoder * manually again. */ if (crtc_state) { struct drm_encoder *best_encoder; drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s] manually disabled\n", encoder->base.base.id, encoder->base.name); /* avoid oopsing in case the hooks consult best_encoder */ best_encoder = connector->base.state->best_encoder; connector->base.state->best_encoder = &encoder->base; /* FIXME NULL atomic state passed! */ if (encoder->disable) encoder->disable(NULL, encoder, crtc_state, connector->base.state); if (encoder->post_disable) encoder->post_disable(NULL, encoder, crtc_state, connector->base.state); connector->base.state->best_encoder = best_encoder; } encoder->base.crtc = NULL; /* * Inconsistent output/port/pipe state happens presumably due to * a bug in one of the get_hw_state functions. Or someplace else * in our code, like the register restore mess on resume. Clamp * things to off as a safer default. */ connector->base.dpms = DRM_MODE_DPMS_OFF; connector->base.encoder = NULL; } /* notify opregion of the sanitized encoder state */ intel_opregion_notify_encoder(encoder, connector && has_active_crtc); if (HAS_DDI(i915)) intel_ddi_sanitize_encoder_pll_mapping(encoder); } /* FIXME read out full plane state for all planes */ static void readout_plane_state(struct drm_i915_private *i915) { struct intel_plane *plane; struct intel_crtc *crtc; for_each_intel_plane(&i915->drm, plane) { struct intel_plane_state *plane_state = to_intel_plane_state(plane->base.state); struct intel_crtc_state *crtc_state; enum pipe pipe = PIPE_A; bool visible; visible = plane->get_hw_state(plane, &pipe); crtc = intel_crtc_for_pipe(i915, pipe); crtc_state = to_intel_crtc_state(crtc->base.state); intel_set_plane_visible(crtc_state, plane_state, visible); drm_dbg_kms(&i915->drm, "[PLANE:%d:%s] hw state readout: %s, pipe %c\n", plane->base.base.id, plane->base.name, str_enabled_disabled(visible), pipe_name(pipe)); } for_each_intel_crtc(&i915->drm, crtc) { struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); intel_plane_fixup_bitmasks(crtc_state); } } static void intel_modeset_readout_hw_state(struct drm_i915_private *i915) { struct intel_cdclk_state *cdclk_state = to_intel_cdclk_state(i915->display.cdclk.obj.state); struct intel_dbuf_state *dbuf_state = to_intel_dbuf_state(i915->display.dbuf.obj.state); enum pipe pipe; struct intel_crtc *crtc; struct intel_encoder *encoder; struct intel_connector *connector; struct drm_connector_list_iter conn_iter; u8 active_pipes = 0; for_each_intel_crtc(&i915->drm, crtc) { struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); __drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi); intel_crtc_free_hw_state(crtc_state); intel_crtc_state_reset(crtc_state, crtc); intel_crtc_get_pipe_config(crtc_state); crtc_state->hw.enable = crtc_state->hw.active; crtc->base.enabled = crtc_state->hw.enable; crtc->active = crtc_state->hw.active; if (crtc_state->hw.active) active_pipes |= BIT(crtc->pipe); drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] hw state readout: %s\n", crtc->base.base.id, crtc->base.name, str_enabled_disabled(crtc_state->hw.active)); } cdclk_state->active_pipes = active_pipes; dbuf_state->active_pipes = active_pipes; readout_plane_state(i915); for_each_intel_encoder(&i915->drm, encoder) { struct intel_crtc_state *crtc_state = NULL; pipe = 0; if (encoder->get_hw_state(encoder, &pipe)) { crtc = intel_crtc_for_pipe(i915, pipe); crtc_state = to_intel_crtc_state(crtc->base.state); encoder->base.crtc = &crtc->base; intel_encoder_get_config(encoder, crtc_state); /* read out to slave crtc as well for bigjoiner */ if (crtc_state->bigjoiner_pipes) { struct intel_crtc *slave_crtc; /* encoder should read be linked to bigjoiner master */ WARN_ON(intel_crtc_is_bigjoiner_slave(crtc_state)); for_each_intel_crtc_in_pipe_mask(&i915->drm, slave_crtc, intel_crtc_bigjoiner_slave_pipes(crtc_state)) { struct intel_crtc_state *slave_crtc_state; slave_crtc_state = to_intel_crtc_state(slave_crtc->base.state); intel_encoder_get_config(encoder, slave_crtc_state); } } } else { encoder->base.crtc = NULL; } if (encoder->sync_state) encoder->sync_state(encoder, crtc_state); drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s] hw state readout: %s, pipe %c\n", encoder->base.base.id, encoder->base.name, str_enabled_disabled(encoder->base.crtc), pipe_name(pipe)); } intel_dpll_readout_hw_state(i915); drm_connector_list_iter_begin(&i915->drm, &conn_iter); for_each_intel_connector_iter(connector, &conn_iter) { if (connector->get_hw_state(connector)) { struct intel_crtc_state *crtc_state; struct intel_crtc *crtc; connector->base.dpms = DRM_MODE_DPMS_ON; encoder = intel_attached_encoder(connector); connector->base.encoder = &encoder->base; crtc = to_intel_crtc(encoder->base.crtc); crtc_state = crtc ? to_intel_crtc_state(crtc->base.state) : NULL; if (crtc_state && crtc_state->hw.active) { /* * This has to be done during hardware readout * because anything calling .crtc_disable may * rely on the connector_mask being accurate. */ crtc_state->uapi.connector_mask |= drm_connector_mask(&connector->base); crtc_state->uapi.encoder_mask |= drm_encoder_mask(&encoder->base); } } else { connector->base.dpms = DRM_MODE_DPMS_OFF; connector->base.encoder = NULL; } drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] hw state readout: %s\n", connector->base.base.id, connector->base.name, str_enabled_disabled(connector->base.encoder)); } drm_connector_list_iter_end(&conn_iter); for_each_intel_crtc(&i915->drm, crtc) { struct intel_bw_state *bw_state = to_intel_bw_state(i915->display.bw.obj.state); struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); struct intel_plane *plane; int min_cdclk = 0; if (crtc_state->hw.active) { /* * The initial mode needs to be set in order to keep * the atomic core happy. It wants a valid mode if the * crtc's enabled, so we do the above call. * * But we don't set all the derived state fully, hence * set a flag to indicate that a full recalculation is * needed on the next commit. */ crtc_state->inherited = true; intel_crtc_update_active_timings(crtc_state); intel_crtc_copy_hw_to_uapi_state(crtc_state); } for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) { const struct intel_plane_state *plane_state = to_intel_plane_state(plane->base.state); /* * FIXME don't have the fb yet, so can't * use intel_plane_data_rate() :( */ if (plane_state->uapi.visible) crtc_state->data_rate[plane->id] = 4 * crtc_state->pixel_rate; /* * FIXME don't have the fb yet, so can't * use plane->min_cdclk() :( */ if (plane_state->uapi.visible && plane->min_cdclk) { if (crtc_state->double_wide || DISPLAY_VER(i915) >= 10) crtc_state->min_cdclk[plane->id] = DIV_ROUND_UP(crtc_state->pixel_rate, 2); else crtc_state->min_cdclk[plane->id] = crtc_state->pixel_rate; } drm_dbg_kms(&i915->drm, "[PLANE:%d:%s] min_cdclk %d kHz\n", plane->base.base.id, plane->base.name, crtc_state->min_cdclk[plane->id]); } if (crtc_state->hw.active) { min_cdclk = intel_crtc_compute_min_cdclk(crtc_state); if (drm_WARN_ON(&i915->drm, min_cdclk < 0)) min_cdclk = 0; } cdclk_state->min_cdclk[crtc->pipe] = min_cdclk; cdclk_state->min_voltage_level[crtc->pipe] = crtc_state->min_voltage_level; intel_bw_crtc_update(bw_state, crtc_state); } } static void get_encoder_power_domains(struct drm_i915_private *i915) { struct intel_encoder *encoder; for_each_intel_encoder(&i915->drm, encoder) { struct intel_crtc_state *crtc_state; if (!encoder->get_power_domains) continue; /* * MST-primary and inactive encoders don't have a crtc state * and neither of these require any power domain references. */ if (!encoder->base.crtc) continue; crtc_state = to_intel_crtc_state(encoder->base.crtc->state); encoder->get_power_domains(encoder, crtc_state); } } static void intel_early_display_was(struct drm_i915_private *i915) { /* * Display WA #1185 WaDisableDARBFClkGating:glk,icl,ehl,tgl * Also known as Wa_14010480278. */ if (IS_DISPLAY_VER(i915, 10, 12)) intel_de_write(i915, GEN9_CLKGATE_DIS_0, intel_de_read(i915, GEN9_CLKGATE_DIS_0) | DARBF_GATING_DIS); if (IS_HASWELL(i915)) { /* * WaRsPkgCStateDisplayPMReq:hsw * System hang if this isn't done before disabling all planes! */ intel_de_write(i915, CHICKEN_PAR1_1, intel_de_read(i915, CHICKEN_PAR1_1) | FORCE_ARB_IDLE_PLANES); } if (IS_KABYLAKE(i915) || IS_COFFEELAKE(i915) || IS_COMETLAKE(i915)) { /* Display WA #1142:kbl,cfl,cml */ intel_de_rmw(i915, CHICKEN_PAR1_1, KBL_ARB_FILL_SPARE_22, KBL_ARB_FILL_SPARE_22); intel_de_rmw(i915, CHICKEN_MISC_2, KBL_ARB_FILL_SPARE_13 | KBL_ARB_FILL_SPARE_14, KBL_ARB_FILL_SPARE_14); } } void intel_modeset_setup_hw_state(struct drm_i915_private *i915, struct drm_modeset_acquire_ctx *ctx) { struct intel_encoder *encoder; struct intel_crtc *crtc; intel_wakeref_t wakeref; wakeref = intel_display_power_get(i915, POWER_DOMAIN_INIT); intel_early_display_was(i915); intel_modeset_readout_hw_state(i915); /* HW state is read out, now we need to sanitize this mess. */ get_encoder_power_domains(i915); intel_pch_sanitize(i915); /* * intel_sanitize_plane_mapping() may need to do vblank * waits, so we need vblank interrupts restored beforehand. */ for_each_intel_crtc(&i915->drm, crtc) { struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); intel_sanitize_fifo_underrun_reporting(crtc_state); drm_crtc_vblank_reset(&crtc->base); if (crtc_state->hw.active) intel_crtc_vblank_on(crtc_state); } intel_fbc_sanitize(i915); intel_sanitize_plane_mapping(i915); for_each_intel_encoder(&i915->drm, encoder) intel_sanitize_encoder(encoder); for_each_intel_crtc(&i915->drm, crtc) { struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); intel_sanitize_crtc(crtc, ctx); intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state"); } intel_modeset_update_connector_atomic_state(i915); intel_dpll_sanitize_state(i915); if (IS_G4X(i915)) { g4x_wm_get_hw_state(i915); g4x_wm_sanitize(i915); } else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) { vlv_wm_get_hw_state(i915); vlv_wm_sanitize(i915); } else if (DISPLAY_VER(i915) >= 9) { skl_wm_get_hw_state(i915); skl_wm_sanitize(i915); } else if (HAS_PCH_SPLIT(i915)) { ilk_wm_get_hw_state(i915); } for_each_intel_crtc(&i915->drm, crtc) { struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); struct intel_power_domain_mask put_domains; intel_modeset_get_crtc_power_domains(crtc_state, &put_domains); if (drm_WARN_ON(&i915->drm, !bitmap_empty(put_domains.bits, POWER_DOMAIN_NUM))) intel_modeset_put_crtc_power_domains(crtc, &put_domains); } intel_display_power_put(i915, POWER_DOMAIN_INIT, wakeref); intel_power_domains_sanitize_state(i915); }
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