From patchwork Tue Aug 28 16:54:13 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Yadav, Jyoti R" X-Patchwork-Id: 10578845 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1698214BD for ; Tue, 28 Aug 2018 16:54:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 04C2B2A738 for ; Tue, 28 Aug 2018 16:54:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ECC5C2A819; Tue, 28 Aug 2018 16:54:20 +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 9E24D2A738 for ; Tue, 28 Aug 2018 16:54:20 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E27306E3C1; Tue, 28 Aug 2018 16:54:19 +0000 (UTC) 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 ESMTPS id 15E116E3C1 for ; Tue, 28 Aug 2018 16:54:19 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Aug 2018 09:54:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,300,1531810800"; d="scan'208";a="79041500" Received: from unknown (HELO localhost.localdomain) ([10.109.67.16]) by orsmga003.jf.intel.com with ESMTP; 28 Aug 2018 09:54:16 -0700 From: Jyoti Yadav To: intel-gfx@lists.freedesktop.org Date: Tue, 28 Aug 2018 12:54:13 -0400 Message-Id: <1535475253-4225-1-git-send-email-jyoti.r.yadav@intel.com> X-Mailer: git-send-email 1.9.1 Subject: [Intel-gfx] [PATCH] [intel-gfx] drm/i915/intel_csr.c Fix DMC FW Loading issue on ICL. 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 From: Jyoti This patch resolves the DMC FW loading issue. Earlier DMC FW package have only one DMC FW for one stepping. But as such there is no such restriction from Package side. For ICL icl_dmc_ver1_07.bin binary package has DMC FW for 2 steppings. So while reading the dmc_offset from package header, for 1st stepping offset used to come 0x0 and was working fine till now. But for second stepping and other steppings, offset is non zero numaber and is in dwords. So we need to convert into bytes to fetch correct DMC FW from correct place. v2 : Added check for DMC FW max size for various gen. (Imre Deak) Signed-off-by: Jyoti Yadav --- drivers/gpu/drm/i915/intel_csr.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c index 1ec4f09..3f78a3e 100644 --- a/drivers/gpu/drm/i915/intel_csr.c +++ b/drivers/gpu/drm/i915/intel_csr.c @@ -55,7 +55,9 @@ #define BXT_CSR_VERSION_REQUIRED CSR_VERSION(1, 7) -#define CSR_MAX_FW_SIZE 0x2FFF +#define BXT_CSR_MAX_FW_SIZE 0x2FFF +#define GLK_CNL_CSR_MAX_FW_SIZE 0x3FFF +#define ICL_CSR_MAX_FW_SIZE 0x5FFF #define CSR_DEFAULT_FW_OFFSET 0xFFFFFFFF struct intel_css_header { @@ -359,6 +361,8 @@ static uint32_t *parse_csr_fw(struct drm_i915_private *dev_priv, si->stepping); return NULL; } + /* Convert dmc_offset into number of bytes. By default it is in dwords*/ + dmc_offset *= 4; readcount += dmc_offset; /* Extract dmc_header information. */ @@ -391,9 +395,21 @@ static uint32_t *parse_csr_fw(struct drm_i915_private *dev_priv, /* fw_size is in dwords, so multiplied by 4 to convert into bytes. */ nbytes = dmc_header->fw_size * 4; - if (nbytes > CSR_MAX_FW_SIZE) { - DRM_ERROR("DMC firmware too big (%u bytes)\n", nbytes); - return NULL; + if (IS_BROXTON(dev_priv)) { + if (nbytes > BXT_CSR_MAX_FW_SIZE) { + DRM_ERROR("DMC FW too big (%u bytes)\n", nbytes); + return NULL; + } + } else if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) { + if (nbytes > GLK_CNL_CSR_MAX_FW_SIZE) { + DRM_ERROR("DMC FW too big (%u bytes)\n", nbytes); + return NULL; + } + } else { + if (nbytes > ICL_CSR_MAX_FW_SIZE) { + DRM_ERROR("DMC FW too big (%u bytes)\n", nbytes); + return NULL; + } } csr->dmc_fw_size = dmc_header->fw_size;