From patchwork Fri Apr 13 16:00:56 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: oscar.mateo@intel.com X-Patchwork-Id: 10340355 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7B3D06039A for ; Fri, 13 Apr 2018 16:02:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7458D1FFDA for ; Fri, 13 Apr 2018 16:02:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 68BC9256E6; Fri, 13 Apr 2018 16:02:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 732C228950 for ; Fri, 13 Apr 2018 16:01:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8887F6E14B; Fri, 13 Apr 2018 16:01:56 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 17FCE6E0BC for ; Fri, 13 Apr 2018 16:01:06 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Apr 2018 09:01:04 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,446,1517904000"; d="scan'208";a="191291765" Received: from omateolo-linux.sc.intel.com ([10.3.229.22]) by orsmga004.jf.intel.com with ESMTP; 13 Apr 2018 09:01:04 -0700 From: Oscar Mateo To: intel-gfx@lists.freedesktop.org Date: Fri, 13 Apr 2018 09:00:56 -0700 Message-Id: <1523635265-9287-13-git-send-email-oscar.mateo@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1523635265-9287-1-git-send-email-oscar.mateo@intel.com> References: <1523635265-9287-1-git-send-email-oscar.mateo@intel.com> Subject: [Intel-gfx] [PATCH 13/22] drm/i915/icl: WaForwardProgressSoftReset X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 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-Virus-Scanned: ClamAV using ClamSMTP Avoids a hang during soft reset. v2: Rebased on top of the WA refactoring Cc: Mika Kuoppala Signed-off-by: Oscar Mateo --- drivers/gpu/drm/i915/i915_reg.h | 5 +++++ drivers/gpu/drm/i915/intel_workarounds.c | 8 ++++++++ 2 files changed, 13 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index fc09b83..cfb9b0d 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -9711,6 +9711,11 @@ enum skl_power_gate { #define GEN9_VEBOX_MOCS(i) _MMIO(0xcb00 + (i) * 4) /* Video MOCS registers */ #define GEN9_BLT_MOCS(i) _MMIO(0xcc00 + (i) * 4) /* Blitter MOCS registers */ +#define GEN10_SCRATCH_LNCF2 _MMIO(0xb0a0) +#define PMFLUSHDONE_LNICRSDROP (1 << 20) +#define PMFLUSH_GAPL3UNBLOCK (1 << 21) +#define PMFLUSHDONE_LNEBLK (1 << 22) + /* gamt regs */ #define GEN8_L3_LRA_1_GPGPU _MMIO(0x4dd4) #define GEN8_L3_LRA_1_GPGPU_DEFAULT_VALUE_BDW 0x67F1427F /* max/min for LRA1/2 */ diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c index 72497e1..413a43d 100644 --- a/drivers/gpu/drm/i915/intel_workarounds.c +++ b/drivers/gpu/drm/i915/intel_workarounds.c @@ -768,6 +768,14 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv) I915_WRITE(INF_UNIT_LEVEL_CLKGATE, (I915_READ(INF_UNIT_LEVEL_CLKGATE) | CGPSF_CLKGATE_DIS)); + + /* WaForwardProgressSoftReset:icl (pre-prod) */ + if (IS_ICL_REVID(dev_priv, ICL_REVID_A0, ICL_REVID_B0)) + I915_WRITE(GEN10_SCRATCH_LNCF2, + (I915_READ(GEN10_SCRATCH_LNCF2) | + PMFLUSHDONE_LNICRSDROP | + PMFLUSH_GAPL3UNBLOCK | + PMFLUSHDONE_LNEBLK)); } void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)