From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:60508 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761210AbcJ1OcS (ORCPT ); Fri, 28 Oct 2016 10:32:18 -0400 Subject: Patch "drm/i915/kbl: KBL also needs to run the SAGV code" has been added to the 4.8-stable tree To: paulo.r.zanoni@intel.com, gregkh@linuxfoundation.org, jani.nikula@intel.com, maarten.lankhorst@linux.intel.com Cc: , From: Date: Fri, 28 Oct 2016 10:32:27 -0400 Message-ID: <1477665147162130@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled drm/i915/kbl: KBL also needs to run the SAGV code to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-i915-kbl-kbl-also-needs-to-run-the-sagv-code.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 17777d61f4a87d7b6d5585e8fdffa83773c594e7 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Thu, 22 Sep 2016 18:00:29 -0300 Subject: drm/i915/kbl: KBL also needs to run the SAGV code From: Paulo Zanoni commit 17777d61f4a87d7b6d5585e8fdffa83773c594e7 upstream. According to BSpec, it's the "core CPUs" that need the code, which means SKL and KBL, but not BXT. I don't have a KBL to test this patch on it. v2: Only SKL should have I915_SAGV_NOT_CONTROLLED. Reviewed-by: Maarten Lankhorst Signed-off-by: Paulo Zanoni Link: http://patchwork.freedesktop.org/patch/msgid/1474578035-424-4-git-send-email-paulo.r.zanoni@intel.com (cherry picked from commit 6e3100ec21e7c774a0fc01e36a1e0739530c2f71) Signed-off-by: Jani Nikula Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/intel_pm.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2881,8 +2881,14 @@ skl_wm_plane_id(const struct intel_plane static bool intel_has_sagv(struct drm_i915_private *dev_priv) { - return IS_SKYLAKE(dev_priv) && - dev_priv->sagv_status != I915_SAGV_NOT_CONTROLLED; + if (IS_KABYLAKE(dev_priv)) + return true; + + if (IS_SKYLAKE(dev_priv) && + dev_priv->sagv_status != I915_SAGV_NOT_CONTROLLED) + return true; + + return false; } /* @@ -2920,7 +2926,7 @@ intel_enable_sagv(struct drm_i915_privat * Some skl systems, pre-release machines in particular, * don't actually have an SAGV. */ - if (ret == -ENXIO) { + if (IS_SKYLAKE(dev_priv) && ret == -ENXIO) { DRM_DEBUG_DRIVER("No SAGV found on system, ignoring\n"); dev_priv->sagv_status = I915_SAGV_NOT_CONTROLLED; return 0; @@ -2974,7 +2980,7 @@ intel_disable_sagv(struct drm_i915_priva * Some skl systems, pre-release machines in particular, * don't actually have an SAGV. */ - if (result == -ENXIO) { + if (IS_SKYLAKE(dev_priv) && result == -ENXIO) { DRM_DEBUG_DRIVER("No SAGV found on system, ignoring\n"); dev_priv->sagv_status = I915_SAGV_NOT_CONTROLLED; return 0; Patches currently in stable-queue which might be from paulo.r.zanoni@intel.com are queue-4.8/drm-i915-gen9-fix-the-watermark-res_blocks-value.patch queue-4.8/drm-i915-gen9-only-add-the-planes-actually-affected-by-ddb-changes.patch queue-4.8/drm-i915-gen9-fix-the-wawmmemoryreadlatency-implementation.patch queue-4.8/drm-i915-introduce-intel_has_sagv.patch queue-4.8/drm-i915-gen9-fix-plane_blocks_per_line-on-watermarks-calculations.patch queue-4.8/drm-i915-kbl-kbl-also-needs-to-run-the-sagv-code.patch queue-4.8/drm-i915-gen9-minimum-scanlines-for-y-tile-is-not-always-4.patch queue-4.8/drm-i915-sagv-is-not-skl-only-so-rename-a-few-things.patch