From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9935C433E9 for ; Tue, 2 Mar 2021 06:18:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 59CF064D74 for ; Tue, 2 Mar 2021 06:18:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1445905AbhCBDCt (ORCPT ); Mon, 1 Mar 2021 22:02:49 -0500 Received: from mail.kernel.org ([198.145.29.99]:44046 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242896AbhCAUQh (ORCPT ); Mon, 1 Mar 2021 15:16:37 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id CC104653D9; Mon, 1 Mar 2021 18:03:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614621783; bh=7A1pKqdKYGdgYqyvoPripE2AZTpzpJRB9fEwNEElYK0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=g+d3UKPRl7gQXhWAexzPWuPAEWW4kpFmFfvoBogmpHH9RGwkRHv1lkxny1GomYB3U /0eGmDdeIMa3JGmiAmuJ3EQWCz9cjzTKAqtZwIdAuY65LkTw+mCdRi2rVc2vDlIWXl +pHYWpcnTJdGVvq6yQMfbWZijSkN84CDjX7XdVy8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chris Wilson , Mika Kuoppala , Akeem G Abodunrin , Rodrigo Vivi , Diego Calleja , Hans de Goede Subject: [PATCH 5.11 643/775] drm/i915/gt: Flush before changing register state Date: Mon, 1 Mar 2021 17:13:31 +0100 Message-Id: <20210301161233.166453387@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161201.679371205@linuxfoundation.org> References: <20210301161201.679371205@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chris Wilson commit d5109f739c9f14a3bda249cb48b16de1065932f0 upstream. Flush; invalidate; change registers; invalidate; flush. Will this finally work on every device? Or will Baytrail complain again? On the positive side, we immediately see the benefit of having hsw-gt1 in CI. Fixes: ace44e13e577 ("drm/i915/gt: Clear CACHE_MODE prior to clearing residuals") Testcase: igt/gem_render_tiled_blits # hsw-gt1 Signed-off-by: Chris Wilson Cc: Mika Kuoppala Cc: Akeem G Abodunrin Acked-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20210125220247.31701-1-chris@chris-wilson.co.uk (cherry picked from commit d30bbd62b1bfd9e0a33c3583c5a9e5d66f60cbd7) Signed-off-by: Rodrigo Vivi Cc: Diego Calleja Cc: Hans de Goede Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/gt/gen7_renderclear.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/i915/gt/gen7_renderclear.c +++ b/drivers/gpu/drm/i915/gt/gen7_renderclear.c @@ -393,6 +393,7 @@ static void emit_batch(struct i915_vma * desc_count); /* Reset inherited context registers */ + gen7_emit_pipeline_flush(&cmds); gen7_emit_pipeline_invalidate(&cmds); batch_add(&cmds, MI_LOAD_REGISTER_IMM(2)); batch_add(&cmds, i915_mmio_reg_offset(CACHE_MODE_0_GEN7));