From patchwork Thu Jun 16 09:48:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 12883668 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5D123C43334 for ; Thu, 16 Jun 2022 09:49:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A6D03113DD7; Thu, 16 Jun 2022 09:49:05 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 18BC4113DD7 for ; Thu, 16 Jun 2022 09:49:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1655372945; x=1686908945; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=PbAdIYYuzgo48aNu4slxDK5Sa9sOW5nmEfcU8ujI+SU=; b=g2OC+M+bg1+Tv2C5Qv/GUi9uUapsHmd+YQKb0DqOqy+StXDDc7yhaUkC rlz4dNNYBwJlBhyF32nPxVusuzvNOfJ0EGj5Pc5GMT6owGFNQQae31/4i Rzb8lxJX9BFTIGKjcWCTtS1tb28CAlvyz3JsAtY7rGxqNQdcDJ9dS0Iho M2Q7si5rhhZo1KljdIG1J2lJSTj2ltfyzJx7Y+GGXxM4xr7KbYtAMelwi MMohgPNKI8KUMlkPbucfiM4SfkgTAVhwKB1vBlz5YOWtWkRoy8luftFxM gv8c0kV1796OuNvCjxmaPYbRbRl3bqcDjrATqFJB6dNs2kypCtZ6HC1yX Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10379"; a="304653153" X-IronPort-AV: E=Sophos;i="5.91,304,1647327600"; d="scan'208";a="304653153" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2022 02:49:04 -0700 X-IronPort-AV: E=Sophos;i="5.91,304,1647327600"; d="scan'208";a="674952879" Received: from malashi-mobl2.ger.corp.intel.com (HELO localhost) ([10.252.57.133]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2022 02:49:02 -0700 From: Jani Nikula To: intel-gfx@lists.freedesktop.org Date: Thu, 16 Jun 2022 12:48:19 +0300 Message-Id: X-Mailer: git-send-email 2.30.2 In-Reply-To: References: MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH v2 09/11] drm/i915/display: split out hw state readout and sanitize X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Split out the modeset hardware state readout and sanitize, or state setup, to a separate file. Do some drive-by checkpatch fixes while at it. Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/display/intel_display.c | 730 +----------------- drivers/gpu/drm/i915/display/intel_display.h | 12 + .../drm/i915/display/intel_modeset_setup.c | 727 +++++++++++++++++ .../drm/i915/display/intel_modeset_setup.h | 15 + 5 files changed, 769 insertions(+), 716 deletions(-) create mode 100644 drivers/gpu/drm/i915/display/intel_modeset_setup.c create mode 100644 drivers/gpu/drm/i915/display/intel_modeset_setup.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 37a8ea56f7d6..c84a9cd8440d 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -244,6 +244,7 @@ i915-y += \ display/intel_hotplug.o \ display/intel_lpe_audio.o \ display/intel_modeset_verify.o \ + display/intel_modeset_setup.o \ display/intel_overlay.o \ display/intel_pch_display.o \ display/intel_pch_refclk.o \ diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 3e014bd08188..a80dd408210a 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -101,6 +101,7 @@ #include "intel_hdcp.h" #include "intel_hotplug.h" #include "intel_modeset_verify.h" +#include "intel_modeset_setup.h" #include "intel_overlay.h" #include "intel_panel.h" #include "intel_pch_display.h" @@ -130,8 +131,6 @@ static void ilk_set_pipeconf(const struct intel_crtc_state *crtc_state); static void hsw_set_transconf(const struct intel_crtc_state *crtc_state); static void bdw_set_pipemisc(const struct intel_crtc_state *crtc_state); static void ilk_pfit_enable(const struct intel_crtc_state *crtc_state); -static void intel_modeset_setup_hw_state(struct drm_device *dev, - struct drm_modeset_acquire_ctx *ctx); /** * intel_update_watermarks - update FIFO watermark values based on current modes @@ -166,7 +165,7 @@ static void intel_modeset_setup_hw_state(struct drm_device *dev, * We don't use the sprite, so we can ignore that. And on Crestline we have * to set the non-SR watermarks to 8. */ -static void intel_update_watermarks(struct drm_i915_private *dev_priv) +void intel_update_watermarks(struct drm_i915_private *dev_priv) { if (dev_priv->wm_disp->update_wm) dev_priv->wm_disp->update_wm(dev_priv); @@ -733,10 +732,9 @@ u32 intel_plane_fb_max_stride(struct drm_i915_private *dev_priv, DRM_MODE_ROTATE_0); } -static void -intel_set_plane_visible(struct intel_crtc_state *crtc_state, - struct intel_plane_state *plane_state, - bool visible) +void intel_set_plane_visible(struct intel_crtc_state *crtc_state, + struct intel_plane_state *plane_state, + bool visible) { struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane); @@ -748,7 +746,7 @@ intel_set_plane_visible(struct intel_crtc_state *crtc_state, crtc_state->uapi.plane_mask &= ~drm_plane_mask(&plane->base); } -static void fixup_plane_bitmasks(struct intel_crtc_state *crtc_state) +void intel_plane_fixup_bitmasks(struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); struct drm_plane *plane; @@ -783,7 +781,7 @@ void intel_plane_disable_noatomic(struct intel_crtc *crtc, crtc->base.base.id, crtc->base.name); intel_set_plane_visible(crtc_state, plane_state, false); - fixup_plane_bitmasks(crtc_state); + intel_plane_fixup_bitmasks(crtc_state); crtc_state->data_rate[plane->id] = 0; crtc_state->data_rate_y[plane->id] = 0; crtc_state->rel_data_rate[plane->id] = 0; @@ -2209,9 +2207,8 @@ static void get_crtc_power_domains(struct intel_crtc_state *crtc_state, set_bit(intel_dsc_power_domain(crtc, cpu_transcoder), mask->bits); } -static void -modeset_get_crtc_power_domains(struct intel_crtc_state *crtc_state, - struct intel_power_domain_mask *old_domains) +void intel_modeset_get_crtc_power_domains(struct intel_crtc_state *crtc_state, + struct intel_power_domain_mask *old_domains) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); @@ -2235,8 +2232,8 @@ modeset_get_crtc_power_domains(struct intel_crtc_state *crtc_state, domain); } -static void modeset_put_crtc_power_domains(struct intel_crtc *crtc, - struct intel_power_domain_mask *domains) +void intel_modeset_put_crtc_power_domains(struct intel_crtc *crtc, + struct intel_power_domain_mask *domains) { intel_display_power_put_mask_in_set(to_i915(crtc->base.dev), &crtc->enabled_power_domains, @@ -2416,89 +2413,6 @@ static void i9xx_crtc_disable(struct intel_atomic_state *state, i830_enable_pipe(dev_priv, pipe); } -static void intel_crtc_disable_noatomic(struct intel_crtc *crtc, - struct drm_modeset_acquire_ctx *ctx) -{ - struct intel_encoder *encoder; - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_bw_state *bw_state = - to_intel_bw_state(dev_priv->bw_obj.state); - struct intel_cdclk_state *cdclk_state = - to_intel_cdclk_state(dev_priv->cdclk.obj.state); - struct intel_dbuf_state *dbuf_state = - to_intel_dbuf_state(dev_priv->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(&dev_priv->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(&dev_priv->drm); - if (!state) { - drm_dbg_kms(&dev_priv->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(&dev_priv->drm, IS_ERR(temp_crtc_state) || ret); - - dev_priv->display->crtc_disable(to_intel_atomic_state(state), crtc); - - drm_atomic_state_put(state); - - drm_dbg_kms(&dev_priv->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(&dev_priv->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(&dev_priv->drm, &crtc->base, encoder) - encoder->base.crtc = NULL; - - intel_fbc_disable(crtc); - intel_update_watermarks(dev_priv); - intel_disable_shared_dpll(crtc_state); - - intel_display_power_put_all_in_set(dev_priv, &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; -} /* * turn all crtc's off, but do not adjust state @@ -4948,39 +4862,6 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state, return 0; } -static void intel_modeset_update_connector_atomic_state(struct drm_device *dev) -{ - struct intel_connector *connector; - struct drm_connector_list_iter conn_iter; - - drm_connector_list_iter_begin(dev, &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 int compute_sink_pipe_bpp(const struct drm_connector_state *conn_state, struct intel_crtc_state *crtc_state) @@ -5165,27 +5046,6 @@ intel_crtc_copy_uapi_to_hw_state_modeset(struct intel_atomic_state *state, intel_crtc_copy_uapi_to_hw_state_nomodeset(state, crtc); } -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 copy_bigjoiner_crtc_state_nomodeset(struct intel_atomic_state *state, struct intel_crtc *slave_crtc) @@ -6115,8 +5975,7 @@ int intel_modeset_all_pipes(struct intel_atomic_state *state) return 0; } -static void -intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state) +void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); @@ -7670,7 +7529,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) new_crtc_state, i) { if (intel_crtc_needs_modeset(new_crtc_state) || new_crtc_state->update_pipe) { - modeset_get_crtc_power_domains(new_crtc_state, &put_domains[crtc->pipe]); + intel_modeset_get_crtc_power_domains(new_crtc_state, &put_domains[crtc->pipe]); } } @@ -7770,7 +7629,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { intel_post_plane_update(state, crtc); - modeset_put_crtc_power_domains(crtc, &put_domains[crtc->pipe]); + intel_modeset_put_crtc_power_domains(crtc, &put_domains[crtc->pipe]); intel_modeset_verify_crtc(crtc, state, old_crtc_state, new_crtc_state); @@ -9060,567 +8919,6 @@ void i830_disable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe) intel_de_posting_read(dev_priv, DPLL(pipe)); } -static void -intel_sanitize_plane_mapping(struct drm_i915_private *dev_priv) -{ - struct intel_crtc *crtc; - - if (DISPLAY_VER(dev_priv) >= 4) - return; - - for_each_intel_crtc(&dev_priv->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(&dev_priv->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(dev_priv, 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_crtc(struct intel_crtc *crtc, - struct drm_modeset_acquire_ctx *ctx) -{ - struct drm_device *dev = crtc->base.dev; - struct drm_i915_private *dev_priv = to_i915(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(dev, 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); - - if (crtc_state->hw.active || HAS_GMCH(dev_priv)) { - /* - * 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(dev_priv, crtc->pipe)) - crtc->pch_fifo_underrun_disabled = true; - } -} - -static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state) -{ - struct drm_i915_private *dev_priv = 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(dev_priv) && - 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 *dev_priv = 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(&dev_priv->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(&dev_priv->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(&dev_priv->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(dev_priv)) - 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 *dev_priv) -{ - struct intel_plane *plane; - struct intel_crtc *crtc; - - for_each_intel_plane(&dev_priv->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(dev_priv, pipe); - crtc_state = to_intel_crtc_state(crtc->base.state); - - intel_set_plane_visible(crtc_state, plane_state, visible); - - drm_dbg_kms(&dev_priv->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(&dev_priv->drm, crtc) { - struct intel_crtc_state *crtc_state = - to_intel_crtc_state(crtc->base.state); - - fixup_plane_bitmasks(crtc_state); - } -} - -static void intel_modeset_readout_hw_state(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_cdclk_state *cdclk_state = - to_intel_cdclk_state(dev_priv->cdclk.obj.state); - struct intel_dbuf_state *dbuf_state = - to_intel_dbuf_state(dev_priv->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(dev, 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(&dev_priv->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 = dbuf_state->active_pipes = active_pipes; - - readout_plane_state(dev_priv); - - for_each_intel_encoder(dev, encoder) { - struct intel_crtc_state *crtc_state = NULL; - - pipe = 0; - - if (encoder->get_hw_state(encoder, &pipe)) { - crtc = intel_crtc_for_pipe(dev_priv, 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(&dev_priv->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(&dev_priv->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(dev_priv); - - drm_connector_list_iter_begin(dev, &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(&dev_priv->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(dev, crtc) { - struct intel_bw_state *bw_state = - to_intel_bw_state(dev_priv->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(&dev_priv->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(dev_priv) >= 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(&dev_priv->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(dev, 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 *dev_priv) -{ - struct intel_encoder *encoder; - - for_each_intel_encoder(&dev_priv->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 *dev_priv) -{ - /* - * Display WA #1185 WaDisableDARBFClkGating:glk,icl,ehl,tgl - * Also known as Wa_14010480278. - */ - if (IS_DISPLAY_VER(dev_priv, 10, 12)) - intel_de_write(dev_priv, GEN9_CLKGATE_DIS_0, - intel_de_read(dev_priv, GEN9_CLKGATE_DIS_0) | DARBF_GATING_DIS); - - if (IS_HASWELL(dev_priv)) { - /* - * WaRsPkgCStateDisplayPMReq:hsw - * System hang if this isn't done before disabling all planes! - */ - intel_de_write(dev_priv, CHICKEN_PAR1_1, - intel_de_read(dev_priv, CHICKEN_PAR1_1) | FORCE_ARB_IDLE_PLANES); - } - - if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv) || IS_COMETLAKE(dev_priv)) { - /* Display WA #1142:kbl,cfl,cml */ - intel_de_rmw(dev_priv, CHICKEN_PAR1_1, - KBL_ARB_FILL_SPARE_22, KBL_ARB_FILL_SPARE_22); - intel_de_rmw(dev_priv, CHICKEN_MISC_2, - KBL_ARB_FILL_SPARE_13 | KBL_ARB_FILL_SPARE_14, - KBL_ARB_FILL_SPARE_14); - } -} - - -/* Scan out the current hw modeset state, - * and sanitizes it to the current state - */ -static void -intel_modeset_setup_hw_state(struct drm_device *dev, - struct drm_modeset_acquire_ctx *ctx) -{ - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_encoder *encoder; - struct intel_crtc *crtc; - intel_wakeref_t wakeref; - - wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); - - intel_early_display_was(dev_priv); - intel_modeset_readout_hw_state(dev); - - /* HW state is read out, now we need to sanitize this mess. */ - get_encoder_power_domains(dev_priv); - - intel_pch_sanitize(dev_priv); - - /* - * intel_sanitize_plane_mapping() may need to do vblank - * waits, so we need vblank interrupts restored beforehand. - */ - for_each_intel_crtc(&dev_priv->drm, crtc) { - struct intel_crtc_state *crtc_state = - to_intel_crtc_state(crtc->base.state); - - drm_crtc_vblank_reset(&crtc->base); - - if (crtc_state->hw.active) - intel_crtc_vblank_on(crtc_state); - } - - intel_fbc_sanitize(dev_priv); - - intel_sanitize_plane_mapping(dev_priv); - - for_each_intel_encoder(dev, encoder) - intel_sanitize_encoder(encoder); - - for_each_intel_crtc(&dev_priv->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(dev); - - intel_dpll_sanitize_state(dev_priv); - - if (IS_G4X(dev_priv)) { - g4x_wm_get_hw_state(dev_priv); - g4x_wm_sanitize(dev_priv); - } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { - vlv_wm_get_hw_state(dev_priv); - vlv_wm_sanitize(dev_priv); - } else if (DISPLAY_VER(dev_priv) >= 9) { - skl_wm_get_hw_state(dev_priv); - skl_wm_sanitize(dev_priv); - } else if (HAS_PCH_SPLIT(dev_priv)) { - ilk_wm_get_hw_state(dev_priv); - } - - for_each_intel_crtc(dev, crtc) { - struct intel_crtc_state *crtc_state = - to_intel_crtc_state(crtc->base.state); - struct intel_power_domain_mask put_domains; - - modeset_get_crtc_power_domains(crtc_state, &put_domains); - if (drm_WARN_ON(dev, !bitmap_empty(put_domains.bits, POWER_DOMAIN_NUM))) - modeset_put_crtc_power_domains(crtc, &put_domains); - } - - intel_display_power_put(dev_priv, POWER_DOMAIN_INIT, wakeref); - - intel_power_domains_sanitize_state(dev_priv); -} - void intel_display_resume(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 2feb8ae5d5d4..8610e17cc593 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -56,6 +56,7 @@ struct intel_initial_plane_config; struct intel_load_detect_pipe; struct intel_plane; struct intel_plane_state; +struct intel_power_domain_mask; struct intel_remapped_info; struct intel_rotation_info; struct pci_dev; @@ -563,6 +564,7 @@ bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state); bool intel_pipe_config_compare(const struct intel_crtc_state *current_config, const struct intel_crtc_state *pipe_config, bool fastset); +void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state); void intel_plane_destroy(struct drm_plane *plane); void intel_enable_transcoder(const struct intel_crtc_state *new_crtc_state); @@ -659,10 +661,16 @@ intel_get_crtc_new_encoder(const struct intel_atomic_state *state, const struct intel_crtc_state *crtc_state); void intel_plane_disable_noatomic(struct intel_crtc *crtc, struct intel_plane *plane); +void intel_set_plane_visible(struct intel_crtc_state *crtc_state, + struct intel_plane_state *plane_state, + bool visible); +void intel_plane_fixup_bitmasks(struct intel_crtc_state *crtc_state); void intel_display_driver_register(struct drm_i915_private *i915); void intel_display_driver_unregister(struct drm_i915_private *i915); +void intel_update_watermarks(struct drm_i915_private *i915); + /* modesetting */ bool intel_modeset_probe_defer(struct pci_dev *pdev); void intel_modeset_init_hw(struct drm_i915_private *i915); @@ -674,6 +682,10 @@ void intel_modeset_driver_remove_noirq(struct drm_i915_private *i915); void intel_modeset_driver_remove_nogem(struct drm_i915_private *i915); void intel_display_resume(struct drm_device *dev); int intel_modeset_all_pipes(struct intel_atomic_state *state); +void intel_modeset_get_crtc_power_domains(struct intel_crtc_state *crtc_state, + struct intel_power_domain_mask *old_domains); +void intel_modeset_put_crtc_power_domains(struct intel_crtc *crtc, + struct intel_power_domain_mask *domains); /* modesetting asserts */ void assert_transcoder(struct drm_i915_private *dev_priv, diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c new file mode 100644 index 000000000000..75aa314279c9 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c @@ -0,0 +1,727 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + * + * Read out the current hardware modeset state, and sanitize it to the current + * state. + */ + +#include +#include + +#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" + +static void intel_crtc_disable_noatomic(struct intel_crtc *crtc, + struct drm_modeset_acquire_ctx *ctx) +{ + struct intel_encoder *encoder; + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_bw_state *bw_state = + to_intel_bw_state(dev_priv->bw_obj.state); + struct intel_cdclk_state *cdclk_state = + to_intel_cdclk_state(dev_priv->cdclk.obj.state); + struct intel_dbuf_state *dbuf_state = + to_intel_dbuf_state(dev_priv->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(&dev_priv->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(&dev_priv->drm); + if (!state) { + drm_dbg_kms(&dev_priv->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(&dev_priv->drm, IS_ERR(temp_crtc_state) || ret); + + dev_priv->display->crtc_disable(to_intel_atomic_state(state), crtc); + + drm_atomic_state_put(state); + + drm_dbg_kms(&dev_priv->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(&dev_priv->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(&dev_priv->drm, &crtc->base, encoder) + encoder->base.crtc = NULL; + + intel_fbc_disable(crtc); + intel_update_watermarks(dev_priv); + intel_disable_shared_dpll(crtc_state); + + intel_display_power_put_all_in_set(dev_priv, &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_device *dev) +{ + struct intel_connector *connector; + struct drm_connector_list_iter conn_iter; + + drm_connector_list_iter_begin(dev, &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 *dev_priv) +{ + struct intel_crtc *crtc; + + if (DISPLAY_VER(dev_priv) >= 4) + return; + + for_each_intel_crtc(&dev_priv->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(&dev_priv->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(dev_priv, 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_crtc(struct intel_crtc *crtc, + struct drm_modeset_acquire_ctx *ctx) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(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(dev, 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); + + if (crtc_state->hw.active || HAS_GMCH(dev_priv)) { + /* + * 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(dev_priv, crtc->pipe)) + crtc->pch_fifo_underrun_disabled = true; + } +} + +static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *dev_priv = 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(dev_priv) && + 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 *dev_priv = 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(&dev_priv->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(&dev_priv->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(&dev_priv->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(dev_priv)) + 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 *dev_priv) +{ + struct intel_plane *plane; + struct intel_crtc *crtc; + + for_each_intel_plane(&dev_priv->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(dev_priv, pipe); + crtc_state = to_intel_crtc_state(crtc->base.state); + + intel_set_plane_visible(crtc_state, plane_state, visible); + + drm_dbg_kms(&dev_priv->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(&dev_priv->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_device *dev) +{ + struct drm_i915_private *dev_priv = to_i915(dev); + struct intel_cdclk_state *cdclk_state = + to_intel_cdclk_state(dev_priv->cdclk.obj.state); + struct intel_dbuf_state *dbuf_state = + to_intel_dbuf_state(dev_priv->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(dev, 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(&dev_priv->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(dev_priv); + + for_each_intel_encoder(dev, encoder) { + struct intel_crtc_state *crtc_state = NULL; + + pipe = 0; + + if (encoder->get_hw_state(encoder, &pipe)) { + crtc = intel_crtc_for_pipe(dev_priv, 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(&dev_priv->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(&dev_priv->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(dev_priv); + + drm_connector_list_iter_begin(dev, &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(&dev_priv->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(dev, crtc) { + struct intel_bw_state *bw_state = + to_intel_bw_state(dev_priv->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(&dev_priv->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(dev_priv) >= 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(&dev_priv->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(dev, 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 *dev_priv) +{ + struct intel_encoder *encoder; + + for_each_intel_encoder(&dev_priv->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 *dev_priv) +{ + /* + * Display WA #1185 WaDisableDARBFClkGating:glk,icl,ehl,tgl + * Also known as Wa_14010480278. + */ + if (IS_DISPLAY_VER(dev_priv, 10, 12)) + intel_de_write(dev_priv, GEN9_CLKGATE_DIS_0, + intel_de_read(dev_priv, GEN9_CLKGATE_DIS_0) | DARBF_GATING_DIS); + + if (IS_HASWELL(dev_priv)) { + /* + * WaRsPkgCStateDisplayPMReq:hsw + * System hang if this isn't done before disabling all planes! + */ + intel_de_write(dev_priv, CHICKEN_PAR1_1, + intel_de_read(dev_priv, CHICKEN_PAR1_1) | FORCE_ARB_IDLE_PLANES); + } + + if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv) || IS_COMETLAKE(dev_priv)) { + /* Display WA #1142:kbl,cfl,cml */ + intel_de_rmw(dev_priv, CHICKEN_PAR1_1, + KBL_ARB_FILL_SPARE_22, KBL_ARB_FILL_SPARE_22); + intel_de_rmw(dev_priv, 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_device *dev, + struct drm_modeset_acquire_ctx *ctx) +{ + struct drm_i915_private *dev_priv = to_i915(dev); + struct intel_encoder *encoder; + struct intel_crtc *crtc; + intel_wakeref_t wakeref; + + wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); + + intel_early_display_was(dev_priv); + intel_modeset_readout_hw_state(dev); + + /* HW state is read out, now we need to sanitize this mess. */ + get_encoder_power_domains(dev_priv); + + intel_pch_sanitize(dev_priv); + + /* + * intel_sanitize_plane_mapping() may need to do vblank + * waits, so we need vblank interrupts restored beforehand. + */ + for_each_intel_crtc(&dev_priv->drm, crtc) { + struct intel_crtc_state *crtc_state = + to_intel_crtc_state(crtc->base.state); + + drm_crtc_vblank_reset(&crtc->base); + + if (crtc_state->hw.active) + intel_crtc_vblank_on(crtc_state); + } + + intel_fbc_sanitize(dev_priv); + + intel_sanitize_plane_mapping(dev_priv); + + for_each_intel_encoder(dev, encoder) + intel_sanitize_encoder(encoder); + + for_each_intel_crtc(&dev_priv->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(dev); + + intel_dpll_sanitize_state(dev_priv); + + if (IS_G4X(dev_priv)) { + g4x_wm_get_hw_state(dev_priv); + g4x_wm_sanitize(dev_priv); + } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { + vlv_wm_get_hw_state(dev_priv); + vlv_wm_sanitize(dev_priv); + } else if (DISPLAY_VER(dev_priv) >= 9) { + skl_wm_get_hw_state(dev_priv); + skl_wm_sanitize(dev_priv); + } else if (HAS_PCH_SPLIT(dev_priv)) { + ilk_wm_get_hw_state(dev_priv); + } + + for_each_intel_crtc(dev, 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(dev, !bitmap_empty(put_domains.bits, POWER_DOMAIN_NUM))) + intel_modeset_put_crtc_power_domains(crtc, &put_domains); + } + + intel_display_power_put(dev_priv, POWER_DOMAIN_INIT, wakeref); + + intel_power_domains_sanitize_state(dev_priv); +} diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.h b/drivers/gpu/drm/i915/display/intel_modeset_setup.h new file mode 100644 index 000000000000..c29b34c6a7b0 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef __INTEL_MODESET_SETUP_H__ +#define __INTEL_MODESET_SETUP_H__ + +struct drm_device; +struct drm_modeset_acquire_ctx; + +void intel_modeset_setup_hw_state(struct drm_device *dev, + struct drm_modeset_acquire_ctx *ctx); + +#endif /* __INTEL_MODESET_SETUP_H__ */