From patchwork Wed Jul 31 14:38:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Wajdeczko X-Patchwork-Id: 11068041 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 EC73A112C for ; Wed, 31 Jul 2019 14:39:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D95361FE95 for ; Wed, 31 Jul 2019 14:39:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CD9A41FF41; Wed, 31 Jul 2019 14:39:29 +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 5BCA11FF14 for ; Wed, 31 Jul 2019 14:39:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 62E9189933; Wed, 31 Jul 2019 14:39:28 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4F4FC89F27 for ; Wed, 31 Jul 2019 14:39:21 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 Jul 2019 07:39:21 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,330,1559545200"; d="scan'208";a="347556468" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga005.jf.intel.com with ESMTP; 31 Jul 2019 07:39:19 -0700 Received: from mwajdecz-MOBL1.ger.corp.intel.com (mwajdecz-mobl1.ger.corp.intel.com [172.28.174.50]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id x6VEdHNT001788; Wed, 31 Jul 2019 15:39:19 +0100 From: Michal Wajdeczko To: intel-gfx@lists.freedesktop.org Date: Wed, 31 Jul 2019 14:38:56 +0000 Message-Id: <20190731143856.35460-5-michal.wajdeczko@intel.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20190731143856.35460-1-michal.wajdeczko@intel.com> References: <20190731143856.35460-1-michal.wajdeczko@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 4/4] drm/i915/uc: Stop sanitizing enable_guc modparam 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP As we already track GuC/HuC uses by other means than modparam there is no point in sanitizing it. Just scan modparam for major discrepancies between what was requested vs actual. v2: rebased, reworded info messages Signed-off-by: Michal Wajdeczko Cc: Daniele Ceraolo Spurio Cc: Chris Wilson --- drivers/gpu/drm/i915/gt/uc/intel_uc.c | 92 ++++++++------------------- 1 file changed, 28 insertions(+), 64 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c index 5d674e418e5e..1ea9b4f23b24 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c @@ -55,78 +55,42 @@ static int __intel_uc_reset_hw(struct intel_uc *uc) return ret; } -static int __get_platform_enable_guc(struct intel_uc *uc) +static void __confirm_options(struct intel_uc *uc) { - struct intel_uc_fw *guc_fw = &uc->guc.fw; - struct intel_uc_fw *huc_fw = &uc->huc.fw; - int enable_guc = 0; - - if (!HAS_GT_UC(uc_to_gt(uc)->i915)) - return 0; - - /* We don't want to enable GuC/HuC on pre-Gen11 by default */ - if (INTEL_GEN(uc_to_gt(uc)->i915) < 11) - return 0; - - if (intel_uc_fw_supported(guc_fw) && intel_uc_fw_supported(huc_fw)) - enable_guc |= ENABLE_GUC_LOAD_HUC; - - return enable_guc; -} - -/** - * sanitize_options_early - sanitize uC related modparam options - * @uc: the intel_uc structure - * - * In case of "enable_guc" option this function will attempt to modify - * it only if it was initially set to "auto(-1)". Default value for this - * modparam varies between platforms and it is hardcoded in driver code. - * Any other modparam value is only monitored against availability of the - * related hardware or firmware definitions. - */ -static void sanitize_options_early(struct intel_uc *uc) -{ - struct intel_uc_fw *guc_fw = &uc->guc.fw; - struct intel_uc_fw *huc_fw = &uc->huc.fw; - - /* A negative value means "use platform default" */ - if (i915_modparams.enable_guc < 0) - i915_modparams.enable_guc = __get_platform_enable_guc(uc); - - DRM_DEBUG_DRIVER("enable_guc=%d (submission:%s huc:%s)\n", + DRM_DEBUG_DRIVER("enable_guc=%d (guc:%s submission:%s huc:%s)\n", i915_modparams.enable_guc, + yesno(intel_uc_supports_guc(uc)), yesno(intel_uc_supports_guc_submission(uc)), yesno(intel_uc_supports_huc(uc))); - /* Verify GuC firmware availability */ - if (intel_uc_supports_guc(uc) && !intel_uc_fw_supported(guc_fw)) { - DRM_WARN("Incompatible option detected: enable_guc=%d, " - "but GuC is not supported!\n", - i915_modparams.enable_guc); - DRM_INFO("Disabling GuC/HuC loading!\n"); - i915_modparams.enable_guc = 0; - } + if (i915_modparams.enable_guc == -1) + return; - /* Verify HuC firmware availability */ - if (intel_uc_supports_huc(uc) && !intel_uc_fw_supported(huc_fw)) { - DRM_WARN("Incompatible option detected: enable_guc=%d, " - "but HuC is not supported!\n", - i915_modparams.enable_guc); - DRM_INFO("Disabling HuC loading!\n"); - i915_modparams.enable_guc &= ~ENABLE_GUC_LOAD_HUC; + if (i915_modparams.enable_guc == 0) { + GEM_BUG_ON(intel_uc_supports_guc(uc)); + GEM_BUG_ON(intel_uc_supports_guc_submission(uc)); + GEM_BUG_ON(intel_uc_supports_huc(uc)); + return; } - /* XXX: GuC submission is unavailable for now */ - if (intel_uc_supports_guc_submission(uc)) { - DRM_INFO("Incompatible option detected: enable_guc=%d, " - "but GuC submission is not supported!\n", - i915_modparams.enable_guc); - DRM_INFO("Switching to non-GuC submission mode!\n"); - i915_modparams.enable_guc &= ~ENABLE_GUC_SUBMISSION; - } + if (!intel_uc_supports_guc(uc)) + DRM_INFO("Incompatible option enable_guc=%d - %s\n", + i915_modparams.enable_guc, "GuC is not supported!"); + + if (i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC && + !intel_uc_supports_huc(uc)) + DRM_INFO("Incompatible option enable_guc=%d - %s\n", + i915_modparams.enable_guc, "HuC is not supported!"); + + if (i915_modparams.enable_guc & ENABLE_GUC_SUBMISSION && + !intel_uc_supports_guc_submission(uc)) + DRM_INFO("Incompatible option enable_guc=%d - %s\n", + i915_modparams.enable_guc, "GuC submission is N/A"); - /* Make sure that sanitization was done */ - GEM_BUG_ON(i915_modparams.enable_guc < 0); + if (i915_modparams.enable_guc & ~(ENABLE_GUC_SUBMISSION || + ENABLE_GUC_LOAD_HUC)) + DRM_INFO("Incompatible option enable_guc=%d - %s\n", + i915_modparams.enable_guc, "undocumented flag"); } void intel_uc_init_early(struct intel_uc *uc) @@ -134,7 +98,7 @@ void intel_uc_init_early(struct intel_uc *uc) intel_guc_init_early(&uc->guc); intel_huc_init_early(&uc->huc); - sanitize_options_early(uc); + __confirm_options(uc); } void intel_uc_cleanup_early(struct intel_uc *uc)