From patchwork Wed Feb 9 06:30:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Cheng X-Patchwork-Id: 12739690 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 100C6C433F5 for ; Wed, 9 Feb 2022 06:30:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 74E1C10E3DB; Wed, 9 Feb 2022 06:30:30 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 73D2310E2A3; Wed, 9 Feb 2022 06:30:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1644388229; x=1675924229; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0faIJeanSVg4TVsukZep2SH9zNSBXKIPlWiirFMZ1bw=; b=CLck1kJIvQtHh6B0VR0ugTi6doHwOV1SZgfi6WQaUnrQImSHBIb3Ua2+ Tb3dWDIeyFGbWfqe24S0nr/3qaQY5As6C/b3XcoGUhV0HWCWNouxDplE4 /n+4eaZ471Yw+Lx6jqy9q9dTZ3DrQ+aH76dRhonptuQuVhy+4BD/Otpst /w0P+0exJz2zvlAZpK+CaWCVgwSGgarL6qqcDTbV9Q7ignvuhvioaALRE gwiga5ZlpZytrLqo5a7gYu3Er3EGne2M2NkiJVdP0LtwE312vh/1oZJLP 4JmUcSChu2LNbshzVOCoTfgtpT872vXpBED0hiMbVtXlyu+IaxCERpJSj w==; X-IronPort-AV: E=McAfee;i="6200,9189,10252"; a="248893157" X-IronPort-AV: E=Sophos;i="5.88,354,1635231600"; d="scan'208";a="248893157" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Feb 2022 22:30:28 -0800 X-IronPort-AV: E=Sophos;i="5.88,354,1635231600"; d="scan'208";a="585460762" Received: from cdrhee-mobl1.amr.corp.intel.com (HELO mvcheng-desk2.intel.com) ([10.209.78.217]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Feb 2022 22:30:28 -0800 From: Michael Cheng To: intel-gfx@lists.freedesktop.org Date: Tue, 8 Feb 2022 22:30:19 -0800 Message-Id: <20220209063023.914205-3-michael.cheng@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220209063023.914205-1-michael.cheng@intel.com> References: <20220209063023.914205-1-michael.cheng@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v7 2/6] drm/i915/gt: Re-work intel_write_status_page 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: , Cc: michael.cheng@intel.com, lucas.demarchi@intel.com, dri-devel@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Re-work intel_write_status_page to use drm_clflush_virt_range. This will prevent compiler errors when building for non-x86 architectures. Signed-off-by: Michael Cheng --- drivers/gpu/drm/i915/gt/intel_engine.h | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h index 0e353d8c2bc8..986777c2430d 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine.h +++ b/drivers/gpu/drm/i915/gt/intel_engine.h @@ -4,6 +4,7 @@ #include #include +#include #include #include @@ -143,15 +144,9 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value) * of extra paranoia to try and ensure that the HWS takes the value * we give and that it doesn't end up trapped inside the CPU! */ - if (static_cpu_has(X86_FEATURE_CLFLUSH)) { - mb(); - clflush(&engine->status_page.addr[reg]); - engine->status_page.addr[reg] = value; - clflush(&engine->status_page.addr[reg]); - mb(); - } else { - WRITE_ONCE(engine->status_page.addr[reg], value); - } + drm_clflush_virt_range(&engine->status_page.addr[reg], sizeof(value)); + WRITE_ONCE(engine->status_page.addr[reg], value); + drm_clflush_virt_range(&engine->status_page.addr[reg], sizeof(value)); } /*