From patchwork Sun Aug 19 19:12:21 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 1344771 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork1.kernel.org (Postfix) with ESMTP id A75373FC64 for ; Sun, 19 Aug 2012 20:24:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9BDC4A102D for ; Sun, 19 Aug 2012 13:24:03 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-wg0-f43.google.com (mail-wg0-f43.google.com [74.125.82.43]) by gabe.freedesktop.org (Postfix) with ESMTP id 34759A0FA0 for ; Sun, 19 Aug 2012 13:20:19 -0700 (PDT) Received: by wgbdr1 with SMTP id dr1so4210645wgb.12 for ; Sun, 19 Aug 2012 13:20:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=zeQXawXAY8yWjiYcRYdPgxOmdUmGSuGKcQJhH240l1w=; b=EGUGsAoP250tLYQs8V3Sh2hMCsvi3846UJaT0NuNVQ5+mL36MoOrB2FQCRfek37MQv PBchIRRuvoBVs2fAuEtFgatPYHwZE3fONKNH+UOVDHtfp6/WrVtiihsJTRPhosBT1ihf fpTziwl2z004WkV59qWRzSJHwjr1ke2DlcFlQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :x-gm-message-state; bh=zeQXawXAY8yWjiYcRYdPgxOmdUmGSuGKcQJhH240l1w=; b=S9DKEoweWrEgOwkn4POgzVqh0Xod0MTeUgDrPDTxWvg9S9ap77IwHjiD85/XaThssU 0K2Csjy46eIM7YLRa1diJnLYGnqpqI8NYiIzfjR69Jg12TJZqJxvlVp48k0MrWZ07KCR 3qBIVPHPXqNa1rzyZneYFjtAzBEVEzJtRn1bN9lnl0eAl0VLgyypkeZQGrXXa5z3iQDw NuzYEwOwKkd+sBebsiDT7ZuA3qBG06jcgVklDN2a+I2bn1uigEzvmDdXl7MOHP5zg3/f NVz+70MvSJ5GLyrMvzCRbdDqcMCWRn7aMh3jterwc3XuJ+Id1A74DCGA2YyTZhnAOzsg 2Ptg== Received: by 10.217.3.1 with SMTP id q1mr5919545wes.38.1345407618205; Sun, 19 Aug 2012 13:20:18 -0700 (PDT) Received: from wespe.ffwll.local (178-83-130-250.dynamic.hispeed.ch. [178.83.130.250]) by mx.google.com with ESMTPS id fu8sm24194367wib.5.2012.08.19.13.20.16 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 19 Aug 2012 13:20:17 -0700 (PDT) From: Daniel Vetter To: Intel Graphics Development Date: Sun, 19 Aug 2012 21:12:21 +0200 Message-Id: <1345403595-9678-5-git-send-email-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 1.7.11.2 In-Reply-To: <1345403595-9678-1-git-send-email-daniel.vetter@ffwll.ch> References: <1345403595-9678-1-git-send-email-daniel.vetter@ffwll.ch> X-Gm-Message-State: ALoCoQlrf4bcknKaoh+dCwtSE9njFs5gegOGmTiTz+HRT7sBEdgaD0OMwdl5sf3D2DhBGVR+ESie Cc: Daniel Vetter Subject: [Intel-gfx] [PATCH 04/58] drm/i915/hdmi: convert to encoder->disable/enable X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org I've picked hdmi as the first encoder to convert because it's rather simple: - no cloning possible - no differences between prepare/commit and dpms off/on switching. A few changes are required to do so: - Split up the dpms code into an enable/disable function and wire it up with the intel encoder. - Noop out the existing encoder prepare/commit functions used by the crtc helper - our crtc enable/disable code now calls back into the encoder enable/disable code at the right spot. - Create new helper functions to handle dpms changes. - Add intel_encoder->connectors_active to better track dpms state. Atm this is unused, but it will be useful to correctly disable the entire display pipe for cloned configurations. Also note that for now this is only useful in the dpms code - thanks to the crtc helper's dpms confusion across a modeset operation we can't (yet) rely on this having a sensible value in all circumstances. - Rip out the encoder helper dpms callback, if this is still getting called somewhere we have a bug. The slight issue with that is that the crtc helper abuses dpms off to disable unused functions. Hence we also need to implement a default encoder disable function to do just that with the new encoder->disable callback. - Note that we drop the cpt modeset verification in the commit callback, too. The right place to do this would be in the crtc's enable function, _after_ all the encoders are set up. But because not all encoders are converted yet, we can't do that. Hence disable this check temporarily as a minor concession to bisectability. v2: Squash the dpms mode to only the supported values - connector->dpms is for internal tracking only, we can hence avoid needless state-changes a bit whithout causing harm. v3: Apply bikeshed to disable|enable_ddi, suggested by Paulo Zanoni. Signed-Off-by: Daniel Vetter Reviewed-by: Jesse Barnes --- drivers/gpu/drm/i915/intel_ddi.c | 30 ++++++--- drivers/gpu/drm/i915/intel_display.c | 49 ++++++++++++++ drivers/gpu/drm/i915/intel_drv.h | 8 ++- drivers/gpu/drm/i915/intel_hdmi.c | 126 +++++++++++++++++++++++------------ 4 files changed, 160 insertions(+), 53 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 170e386..38a7006 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -757,26 +757,34 @@ void intel_ddi_mode_set(struct drm_encoder *encoder, intel_hdmi->set_infoframes(encoder, adjusted_mode); } -void intel_ddi_dpms(struct drm_encoder *encoder, int mode) +void intel_enable_ddi(struct intel_encoder *encoder) { - struct drm_device *dev = encoder->dev; + struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); + struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); int port = intel_hdmi->ddi_port; u32 temp; temp = I915_READ(DDI_BUF_CTL(port)); - - if (mode != DRM_MODE_DPMS_ON) { - temp &= ~DDI_BUF_CTL_ENABLE; - } else { - temp |= DDI_BUF_CTL_ENABLE; - } + temp |= DDI_BUF_CTL_ENABLE; /* Enable DDI_BUF_CTL. In HDMI/DVI mode, the port width, * and swing/emphasis values are ignored so nothing special needs * to be done besides enabling the port. */ - I915_WRITE(DDI_BUF_CTL(port), - temp); + I915_WRITE(DDI_BUF_CTL(port), temp); +} + +void intel_disable_ddi(struct intel_encoder *encoder) +{ + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); + int port = intel_hdmi->ddi_port; + u32 temp; + + temp = I915_READ(DDI_BUF_CTL(port)); + temp &= ~DDI_BUF_CTL_ENABLE; + + I915_WRITE(DDI_BUF_CTL(port), temp); } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 82aaded..cbd356f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3554,6 +3554,17 @@ void intel_encoder_commit(struct drm_encoder *encoder) intel_cpt_verify_modeset(dev, intel_crtc->pipe); } +void intel_encoder_noop(struct drm_encoder *encoder) +{ +} + +void intel_encoder_disable(struct drm_encoder *encoder) +{ + struct intel_encoder *intel_encoder = to_intel_encoder(encoder); + + intel_encoder->disable(intel_encoder); +} + void intel_encoder_destroy(struct drm_encoder *encoder) { struct intel_encoder *intel_encoder = to_intel_encoder(encoder); @@ -3562,6 +3573,44 @@ void intel_encoder_destroy(struct drm_encoder *encoder) kfree(intel_encoder); } +/* Simple dpms helper for encodres with just one connector, no cloning and only + * one kind of off state. It clamps all !ON modes to fully OFF and changes the + * state of the entire output pipe. */ +void intel_encoder_dpms(struct intel_encoder *encoder, int mode) +{ + if (mode == DRM_MODE_DPMS_ON) { + encoder->connectors_active = true; + + intel_crtc_dpms(encoder->base.crtc, DRM_MODE_DPMS_ON); + } else { + encoder->connectors_active = false; + + intel_crtc_dpms(encoder->base.crtc, DRM_MODE_DPMS_OFF); + } +} + +/* Even simpler default implementation, if there's really no special case to + * consider. */ +void intel_connector_dpms(struct drm_connector *connector, int mode) +{ + struct intel_encoder *encoder = intel_attached_encoder(connector); + + /* All the simple cases only support two dpms states. */ + if (mode != DRM_MODE_DPMS_ON) + mode = DRM_MODE_DPMS_OFF; + + if (mode == connector->dpms) + return; + + connector->dpms = mode; + + /* Only need to change hw state when actually enabled */ + if (encoder->base.crtc) + intel_encoder_dpms(encoder, mode); + else + encoder->connectors_active = false; +} + static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 9a5adcc..759dcba 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -140,6 +140,7 @@ struct intel_encoder { * simple flag is enough to compute the possible_clones mask. */ bool cloneable; + bool connectors_active; void (*hot_plug)(struct intel_encoder *); void (*enable)(struct intel_encoder *); void (*disable)(struct intel_encoder *); @@ -412,7 +413,11 @@ extern enum drm_connector_status intel_panel_detect(struct drm_device *dev); extern void intel_crtc_load_lut(struct drm_crtc *crtc); extern void intel_encoder_prepare(struct drm_encoder *encoder); extern void intel_encoder_commit(struct drm_encoder *encoder); +extern void intel_encoder_noop(struct drm_encoder *encoder); +extern void intel_encoder_disable(struct drm_encoder *encoder); extern void intel_encoder_destroy(struct drm_encoder *encoder); +extern void intel_encoder_dpms(struct intel_encoder *encoder, int mode); +extern void intel_connector_dpms(struct drm_connector *, int mode); static inline struct intel_encoder *intel_attached_encoder(struct drm_connector *connector) { @@ -519,7 +524,8 @@ extern void intel_disable_gt_powersave(struct drm_device *dev); extern void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv); extern void ironlake_teardown_rc6(struct drm_device *dev); -extern void intel_ddi_dpms(struct drm_encoder *encoder, int mode); +extern void intel_enable_ddi(struct intel_encoder *encoder); +extern void intel_disable_ddi(struct intel_encoder *encoder); extern void intel_ddi_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode); diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index e4c37bb..acddaaa 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -601,11 +601,11 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder, intel_hdmi->set_infoframes(encoder, adjusted_mode); } -static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode) +static void intel_enable_hdmi(struct intel_encoder *encoder) { - struct drm_device *dev = encoder->dev; + struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); + struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); u32 temp; u32 enable_bits = SDVO_ENABLE; @@ -617,31 +617,12 @@ static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode) /* HW workaround for IBX, we need to move the port to transcoder A * before disabling it. */ if (HAS_PCH_IBX(dev)) { - struct drm_crtc *crtc = encoder->crtc; + struct drm_crtc *crtc = encoder->base.crtc; int pipe = crtc ? to_intel_crtc(crtc)->pipe : -1; - if (mode != DRM_MODE_DPMS_ON) { - if (temp & SDVO_PIPE_B_SELECT) { - temp &= ~SDVO_PIPE_B_SELECT; - I915_WRITE(intel_hdmi->sdvox_reg, temp); - POSTING_READ(intel_hdmi->sdvox_reg); - - /* Again we need to write this twice. */ - I915_WRITE(intel_hdmi->sdvox_reg, temp); - POSTING_READ(intel_hdmi->sdvox_reg); - - /* Transcoder selection bits only update - * effectively on vblank. */ - if (crtc) - intel_wait_for_vblank(dev, pipe); - else - msleep(50); - } - } else { - /* Restore the transcoder select bit. */ - if (pipe == PIPE_B) - enable_bits |= SDVO_PIPE_B_SELECT; - } + /* Restore the transcoder select bit. */ + if (pipe == PIPE_B) + enable_bits |= SDVO_PIPE_B_SELECT; } /* HW workaround, need to toggle enable bit off and on for 12bpc, but @@ -652,12 +633,67 @@ static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode) POSTING_READ(intel_hdmi->sdvox_reg); } - if (mode != DRM_MODE_DPMS_ON) { - temp &= ~enable_bits; - } else { - temp |= enable_bits; + temp |= enable_bits; + + I915_WRITE(intel_hdmi->sdvox_reg, temp); + POSTING_READ(intel_hdmi->sdvox_reg); + + /* HW workaround, need to write this twice for issue that may result + * in first write getting masked. + */ + if (HAS_PCH_SPLIT(dev)) { + I915_WRITE(intel_hdmi->sdvox_reg, temp); + POSTING_READ(intel_hdmi->sdvox_reg); + } +} + +static void intel_disable_hdmi(struct intel_encoder *encoder) +{ + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); + u32 temp; + u32 enable_bits = SDVO_ENABLE; + + if (intel_hdmi->has_audio) + enable_bits |= SDVO_AUDIO_ENABLE; + + temp = I915_READ(intel_hdmi->sdvox_reg); + + /* HW workaround for IBX, we need to move the port to transcoder A + * before disabling it. */ + if (HAS_PCH_IBX(dev)) { + struct drm_crtc *crtc = encoder->base.crtc; + int pipe = crtc ? to_intel_crtc(crtc)->pipe : -1; + + if (temp & SDVO_PIPE_B_SELECT) { + temp &= ~SDVO_PIPE_B_SELECT; + I915_WRITE(intel_hdmi->sdvox_reg, temp); + POSTING_READ(intel_hdmi->sdvox_reg); + + /* Again we need to write this twice. */ + I915_WRITE(intel_hdmi->sdvox_reg, temp); + POSTING_READ(intel_hdmi->sdvox_reg); + + /* Transcoder selection bits only update + * effectively on vblank. */ + if (crtc) + intel_wait_for_vblank(dev, pipe); + else + msleep(50); + } } + /* HW workaround, need to toggle enable bit off and on for 12bpc, but + * we do this anyway which shows more stable in testing. + */ + if (HAS_PCH_SPLIT(dev)) { + I915_WRITE(intel_hdmi->sdvox_reg, temp & ~SDVO_ENABLE); + POSTING_READ(intel_hdmi->sdvox_reg); + } + + temp &= ~enable_bits; + I915_WRITE(intel_hdmi->sdvox_reg, temp); POSTING_READ(intel_hdmi->sdvox_reg); @@ -849,23 +885,23 @@ static void intel_hdmi_destroy(struct drm_connector *connector) } static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs_hsw = { - .dpms = intel_ddi_dpms, .mode_fixup = intel_hdmi_mode_fixup, - .prepare = intel_encoder_prepare, + .prepare = intel_encoder_noop, .mode_set = intel_ddi_mode_set, - .commit = intel_encoder_commit, + .commit = intel_encoder_noop, + .disable = intel_encoder_disable, }; static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs = { - .dpms = intel_hdmi_dpms, .mode_fixup = intel_hdmi_mode_fixup, - .prepare = intel_encoder_prepare, + .prepare = intel_encoder_noop, .mode_set = intel_hdmi_mode_set, - .commit = intel_encoder_commit, + .commit = intel_encoder_noop, + .disable = intel_encoder_disable, }; static const struct drm_connector_funcs intel_hdmi_connector_funcs = { - .dpms = drm_helper_connector_dpms, + .dpms = intel_connector_dpms, .detect = intel_hdmi_detect, .fill_modes = drm_helper_probe_single_connector_modes, .set_property = intel_hdmi_set_property, @@ -964,10 +1000,18 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg, enum port port) intel_hdmi->set_infoframes = cpt_set_infoframes; } - if (IS_HASWELL(dev)) - drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs_hsw); - else - drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs); + if (IS_HASWELL(dev)) { + intel_encoder->enable = intel_enable_ddi; + intel_encoder->disable = intel_disable_ddi; + drm_encoder_helper_add(&intel_encoder->base, + &intel_hdmi_helper_funcs_hsw); + } else { + intel_encoder->enable = intel_enable_hdmi; + intel_encoder->disable = intel_disable_hdmi; + drm_encoder_helper_add(&intel_encoder->base, + &intel_hdmi_helper_funcs); + } + intel_hdmi_add_properties(intel_hdmi, connector);