From patchwork Sat Sep 7 17:14:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gupta, Anshuman" X-Patchwork-Id: 11136565 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 B913013BD for ; Sat, 7 Sep 2019 17:21:52 +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 9FD3F208C3 for ; Sat, 7 Sep 2019 17:21:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9FD3F208C3 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 234B989DBF; Sat, 7 Sep 2019 17:21:52 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 19DBF89DBF for ; Sat, 7 Sep 2019 17:21:50 +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 fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 Sep 2019 10:21:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,478,1559545200"; d="scan'208";a="191111463" Received: from genxfsim-desktop.iind.intel.com ([10.223.74.120]) by FMSMGA003.fm.intel.com with ESMTP; 07 Sep 2019 10:21:47 -0700 From: Anshuman Gupta To: intel-gfx@lists.freedesktop.org Date: Sat, 7 Sep 2019 22:44:43 +0530 Message-Id: <20190907171443.16181-8-anshuman.gupta@intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190907171443.16181-1-anshuman.gupta@intel.com> References: <20190907171443.16181-1-anshuman.gupta@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v7 7/7] drm/i915/tgl: Add DC3CO counter in i915_dmc_info 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: , Cc: jani.nikula@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Adding DC3CO counter in i915_dmc_info debugfs will be useful for DC3CO validation. DMC firmware uses DMC_DEBUG3 register as DC3CO counter register on TGL, as per B.Specs DMC_DEBUG3 is general purpose register. Cc: Jani Nikula Cc: Imre Deak Cc: Animesh Manna Signed-off-by: Anshuman Gupta --- drivers/gpu/drm/i915/i915_debugfs.c | 6 ++++++ drivers/gpu/drm/i915/i915_reg.h | 2 ++ 2 files changed, 8 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 708855e051b5..161c4bcd3756 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2397,6 +2397,12 @@ static int i915_dmc_info(struct seq_file *m, void *unused) seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version), CSR_VERSION_MINOR(csr->version)); + /* + * TGL DMC f/w uses DMC_DEBUG3 register for DC3CO counter. + */ + if (IS_TIGERLAKE(dev_priv)) + seq_printf(m, "DC3CO count: %d\n", I915_READ(DMC_DEBUG3)); + if (INTEL_GEN(dev_priv) >= 12) { dc5_reg = TGL_DMC_DEBUG_DC5_COUNT; dc6_reg = TGL_DMC_DEBUG_DC6_COUNT; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 273a4ed8b3e9..0fb86a78c4a4 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7251,6 +7251,8 @@ enum { #define TGL_DMC_DEBUG_DC5_COUNT _MMIO(0x101084) #define TGL_DMC_DEBUG_DC6_COUNT _MMIO(0x101088) +#define DMC_DEBUG3 _MMIO(0x101090) + /* interrupts */ #define DE_MASTER_IRQ_CONTROL (1 << 31) #define DE_SPRITEB_FLIP_DONE (1 << 29)