From patchwork Wed Nov 4 19:10:52 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zanoni, Paulo R" X-Patchwork-Id: 7552781 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 2C447BFD59 for ; Wed, 4 Nov 2015 19:14:52 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 006FF20792 for ; Wed, 4 Nov 2015 19:14:51 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 9EA79207A5 for ; Wed, 4 Nov 2015 19:14:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DEF196E90C; Wed, 4 Nov 2015 11:14:48 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 59EA56E910 for ; Wed, 4 Nov 2015 11:14:47 -0800 (PST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP; 04 Nov 2015 11:11:27 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,244,1444719600"; d="scan'208";a="843183152" Received: from jungwoon-mobl2.amr.corp.intel.com (HELO panetone.amr.corp.intel.com) ([10.254.115.30]) by fmsmga002.fm.intel.com with ESMTP; 04 Nov 2015 11:11:26 -0800 From: Paulo Zanoni To: intel-gfx@lists.freedesktop.org Date: Wed, 4 Nov 2015 17:10:52 -0200 Message-Id: <1446664257-32012-9-git-send-email-paulo.r.zanoni@intel.com> X-Mailer: git-send-email 2.6.1 In-Reply-To: <1446664257-32012-1-git-send-email-paulo.r.zanoni@intel.com> References: <1446664257-32012-1-git-send-email-paulo.r.zanoni@intel.com> Subject: [Intel-gfx] [PATCH 08/13] drm/i915: refactor FBC deactivation at init X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Make sure we deactivate FBC at intel_fbc_init(), so we can remove the call from intel_display.c. Currently we only have the "enabled" software state, but later we'll have both "enabled" and "active", and we'll add assertions to them, so just calling intel_fbc_disable() from intel_modeset_init() won't work. It's better to make sure intel_fbc_init() already puts the hardware in the expected state, so we can put nice assertions in the other functions. v2: Keep/improve the comment (Chris). v3: Improve the commit message a little bit. Signed-off-by: Paulo Zanoni --- drivers/gpu/drm/i915/intel_display.c | 3 --- drivers/gpu/drm/i915/intel_fbc.c | 8 ++++++-- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 7b3cfb6..5a7f012 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -15030,9 +15030,6 @@ void intel_modeset_init(struct drm_device *dev) i915_disable_vga(dev); intel_setup_outputs(dev); - /* Just in case the BIOS is doing something questionable. */ - intel_fbc_disable(dev_priv); - drm_modeset_lock_all(dev); intel_modeset_setup_hw_state(dev); drm_modeset_unlock_all(dev); diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index 5a853c6..8abf70e 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -1038,9 +1038,9 @@ void intel_fbc_init(struct drm_i915_private *dev_priv) enum pipe pipe; mutex_init(&dev_priv->fbc.lock); + dev_priv->fbc.enabled = false; if (!HAS_FBC(dev_priv)) { - dev_priv->fbc.enabled = false; dev_priv->fbc.no_fbc_reason = "unsupported by this chipset"; return; } @@ -1074,5 +1074,9 @@ void intel_fbc_init(struct drm_i915_private *dev_priv) I915_WRITE(FBC_CONTROL, 500 << FBC_CTL_INTERVAL_SHIFT); } - dev_priv->fbc.enabled = dev_priv->fbc.fbc_enabled(dev_priv); + /* We still don't have any sort of hardware state readout for FBC, so + * disable it in case the BIOS enabled it to make sure software matches + * the hardware state. */ + if (dev_priv->fbc.fbc_enabled(dev_priv)) + dev_priv->fbc.disable_fbc(dev_priv); }