From patchwork Thu Jun 2 20:08:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Helge Deller X-Patchwork-Id: 12868108 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E0F9C433EF for ; Thu, 2 Jun 2022 20:08:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235464AbiFBUIs (ORCPT ); Thu, 2 Jun 2022 16:08:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57382 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238829AbiFBUIr (ORCPT ); Thu, 2 Jun 2022 16:08:47 -0400 Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B28773A1BB for ; Thu, 2 Jun 2022 13:08:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1654200520; bh=MWdsFO0Da7lpg/6VkR6yrv6S008xzfO8/q3kNEiYJGM=; h=X-UI-Sender-Class:Date:From:To:Subject; b=giIqeTa0rELXJlbOGCzv2gUnTIWLop8tmTvxkzDq4u+Gw1uFD55zOUPMCVwPoaF5F eu+R5WEm/ioaiHPas2d6DN/ce9E2qqymjwFPcfdC9Sj8EWFcoPJNZanZ4n3HxI/imN NctUZSEyuAMjVMUErWLGuNnbqt5P8YOJP6Faoq6g= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from p100 ([92.116.181.14]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1N33Il-1nmuzF0Ttd-013MdC; Thu, 02 Jun 2022 22:08:40 +0200 Date: Thu, 2 Jun 2022 22:08:38 +0200 From: Helge Deller To: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH] fbcon: Fix accelerated fbdev scrolling while logo is still shown Message-ID: MIME-Version: 1.0 Content-Disposition: inline X-Provags-ID: V03:K1:hVfaPk/9jZny26PcD/WxhWiObtc1MLuJNdonRgwBiVzzDnIV7SK UoSuD0ggVXDDKP2Tn2USwM7ZrUl6zb88GkTZERFK4sKl+i0SlUq2Py5WnNfrt4Carg1hroW N/dyy4J9X5IsA39mp767lUk9hKA9Tgf3hBKpXsMjOFJAaq751L2toavGTqHStSHi4QjhqDr c5Xb8j0z5+edI4jeE9EYg== X-UI-Out-Filterresults: notjunk:1;V03:K0:0WOHpmXwUx0=:5r2dFs4uvkyMP/n1t9ledo veQcGH68JUzpjkanLCv8ZStH//t4BBPvILVjqoTEMtxp5RqPzUbhXrYx3UcMCms12XZCrS5CQ S+8DwEYGA3fARlRS6rIdJD1eq5231Tvomd6GHGvmzz0ffFEfOZ+74PkidF98qgOrGypnhTMh7 WjuyN6RYx5k/4N0KY43oXLBIkf7pxmDpbXoQusgfuHJz6zXsLV+pA60e/VpwPIDVQJ7aZjodA bGAPH/DyLU8ZQyVbP20UZzytE+AmO+3uetxL4RCacOB5FFI+WqpymH/F7cLVlXtRYOoNpTus/ HFjLllfxN8Ec6nBDtTIZR9Sw9GvoOAZIl5V8Ifk3VVkMo3RFyVeEzbP2Oc0DikBv4pdKstNpL oHC8mqhdk2WyXcii6QC6dSrNJZqwqMbN8Q0B4PI+9Gc7UnDkts8vP0RP8vwLsBJq4UlOJ983g JHssvAkUxLX+d57PMhle9eLKG2XZukfZ/o5o0P1B9AJFBdsv4/hZaSbGrW/Tg55qvd300kSsk 5fgkmHhqJQD/n4CFMZADVA9RpuBV5IVe8SOhJPFUd2fuL1eVx2Y0lYQZ40umoMNl0mcUqMTD1 /kL6vwCObiZIj+4sV4JkLq0HQIlzezuo0zjB2HfhbE4i0v2ypmsUXcdRMSCCmbZ1hfwAtdon5 SPsfEpkIj5BRRx/F+n3vU0DXmZJgTQHVV3OJUO+zx7C0OtEt5YToW8VYYNg37PwKFvh78MG8Z DjVy3YTctp5AguJqXoQitvze1SFIMZvvujtIddCzI7b7ih1gPO5tUralw1DU2g15YUiBUw2ef Sa6g2im3la33Ye3RImdlSnKRyvSEbU1OpCP2OAbSWQism4vWkAlryJqPnQYU8qSZHEUPXWp2q mmS3XUp7A5Pa2QfpklKRNXGhYzDO1ztJTsaQ8k+tOee4RnByW8DQCIfvwUX3M3iY12w9BAx/9 hgigysppmkJ+SnsEfkEPfTGP80SLm0LxZs0rrF/R9mcRm8PSysd42nHLXznAXaXcB+ZLkbTy8 VpLZlzseQint1oZBZ4icKKI3uxwW4y1CXGKOjKqMNLNG7GHqJAAIjO60JAGDCFPeRG0mwVipp iWT1r0eaZGh/9gd4BQauhI63poMviL9SXrZ Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org There is no need to directly skip over to the SCROLL_REDRAW case while the logo is still shown. When using DRM, this change has no effect because the code will reach the SCROLL_REDRAW case immediately anyway. But if you run an accelerated fbdev driver and have FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION enabled, console scrolling is slowed down by factors so that it feels as if you use a 9600 baud terminal. So, drop those unnecessary checks and speed up fbdev console acceleration during bootup. Signed-off-by: Helge Deller Cc: stable@vger.kernel.org Acked-by: Daniel Vetter diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index c2f9e5711c39..8eb5b73e98bc 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -1706,8 +1706,6 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b, case SM_UP: if (count > vc->vc_rows) /* Maximum realistic size */ count = vc->vc_rows; - if (logo_shown >= 0) - goto redraw_up; switch (fb_scrollmode(p)) { case SCROLL_MOVE: fbcon_redraw_blit(vc, info, p, t, b - t - count, @@ -1796,8 +1794,6 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b, case SM_DOWN: if (count > vc->vc_rows) /* Maximum realistic size */ count = vc->vc_rows; - if (logo_shown >= 0) - goto redraw_down; switch (fb_scrollmode(p)) { case SCROLL_MOVE: fbcon_redraw_blit(vc, info, p, b - 1, b - t - count,