From patchwork Thu Jan 16 01:48:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Roper X-Patchwork-Id: 11335821 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8B107109A for ; Thu, 16 Jan 2020 01:49:00 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 7338A207E0 for ; Thu, 16 Jan 2020 01:49:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7338A207E0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4BFC96E1EE; Thu, 16 Jan 2020 01:48:58 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 725B86E1EE for ; Thu, 16 Jan 2020 01:48:57 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Jan 2020 17:48:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,323,1574150400"; d="scan'208";a="273833208" Received: from mdroper-desk1.fm.intel.com ([10.1.27.64]) by FMSMGA003.fm.intel.com with ESMTP; 15 Jan 2020 17:48:56 -0800 From: Matt Roper To: intel-gfx@lists.freedesktop.org Date: Wed, 15 Jan 2020 17:48:55 -0800 Message-Id: <20200116014855.3615366-1-matthew.d.roper@intel.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH] drm/i915/tgl: Program MBUS_ABOX{1, 2}_CTL during display init 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On gen11 we only needed to program MBus credits into MBUS_ABOX_CTL during display initialization, but on gen12 we're now supposed to program the same values into MBUS_ABOX1_CTL and MBUS_ABOX2_CTL as well. Bspec: 49213 Bspec: 50096 Cc: Stanislav Lisovskiy Signed-off-by: Matt Roper --- drivers/gpu/drm/i915/display/intel_display_power.c | 4 ++++ drivers/gpu/drm/i915/i915_reg.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 21561acfa3ac..761be9fcaf10 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -4474,6 +4474,10 @@ static void icl_mbus_init(struct drm_i915_private *dev_priv) MBUS_ABOX_BW_CREDIT(1); I915_WRITE(MBUS_ABOX_CTL, val); + if (INTEL_GEN(dev_priv) >= 12) { + I915_WRITE(MBUS_ABOX1_CTL, val); + I915_WRITE(MBUS_ABOX2_CTL, val); + } } static void hsw_assert_cdclk(struct drm_i915_private *dev_priv) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 5e5949edf2a8..ef191a0278ac 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2860,6 +2860,8 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define MI_ARB_STATE _MMIO(0x20e4) /* 915+ only */ #define MBUS_ABOX_CTL _MMIO(0x45038) +#define MBUS_ABOX1_CTL _MMIO(0x45048) +#define MBUS_ABOX2_CTL _MMIO(0x4504C) #define MBUS_ABOX_BW_CREDIT_MASK (3 << 20) #define MBUS_ABOX_BW_CREDIT(x) ((x) << 20) #define MBUS_ABOX_B_CREDIT_MASK (0xF << 16)