From patchwork Wed May 24 09:21:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13253652 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 CA411C7EE43 for ; Wed, 24 May 2023 09:22:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 86E6B10E632; Wed, 24 May 2023 09:22:07 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by gabe.freedesktop.org (Postfix) with ESMTPS id A07E110E5D9; Wed, 24 May 2023 09:21:57 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 4466A1FDE9; Wed, 24 May 2023 09:21:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1684920116; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uGZg7kFdz+XejD4cmJGt7V0mOKuKM/4e6s3JnO99UY4=; b=2Xkk2vwMa+PwUISyBhyBseoF4xYG2XQ7yQTzLyNUOlURhREHQVAayAwns5PqelCJCdjzex 9xrnwNSwnvRFZVowQPGTBrF8JIlzVmQEV1wjDupytur+pF/nd0BKozwKllzOtmLg9E5GJi BtN46hClaqtE8z/GFYc/vfm86FzIe58= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1684920116; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uGZg7kFdz+XejD4cmJGt7V0mOKuKM/4e6s3JnO99UY4=; b=WM3MHnIgwQ3Q6bQdgd1XqssT6t1l99URaFdruYYRF4IW2BYhkRqAqY33kDOS9SNUn3yMo0 DYMMVjJSHoORX2DQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id E1E2013425; Wed, 24 May 2023 09:21:55 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id qLNPNjPXbWTHewAAMHmgww (envelope-from ); Wed, 24 May 2023 09:21:55 +0000 From: Thomas Zimmermann To: daniel@ffwll.ch, airlied@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com, sam@ravnborg.org Date: Wed, 24 May 2023 11:21:45 +0200 Message-Id: <20230524092150.11776-9-tzimmermann@suse.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230524092150.11776-1-tzimmermann@suse.de> References: <20230524092150.11776-1-tzimmermann@suse.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v4 08/13] drm/msm: Use regular fbdev I/O helpers 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: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, intel-gfx@lists.freedesktop.org, Abhinav Kumar , dri-devel@lists.freedesktop.org, Dmitry Baryshkov , amd-gfx@lists.freedesktop.org, Thomas Zimmermann , linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Use the regular fbdev helpers for framebuffer I/O instead of DRM's helpers. Msm does not use damage handling, so DRM's fbdev helpers are mere wrappers around the fbdev code. By using fbdev helpers directly within each DRM fbdev emulation, we can eventually remove DRM's wrapper functions entirely. Msm's fbdev emulation has been incomplete as it didn't implement damage handling. Partilly fix this by implementing damage handling for write and draw operation. It is still missing for mmaped pages. v4: * use initializer macros for struct fb_ops * partially support damage handling v2: * use FB_SYS_HELPERS option Signed-off-by: Thomas Zimmermann Reviewed-by: Dmitry Baryshkov Cc: Rob Clark Cc: Abhinav Kumar Cc: Dmitry Baryshkov Cc: Sean Paul --- drivers/gpu/drm/msm/Kconfig | 1 + drivers/gpu/drm/msm/msm_fbdev.c | 17 ++++++++--------- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig index 85f5ab1d552c..a78662bd6273 100644 --- a/drivers/gpu/drm/msm/Kconfig +++ b/drivers/gpu/drm/msm/Kconfig @@ -21,6 +21,7 @@ config DRM_MSM select DRM_BRIDGE select DRM_PANEL_BRIDGE select DRM_SCHED + select FB_SYS_HELPERS if DRM_FBDEV_EMULATION select SHMEM select TMPFS select QCOM_SCM diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c index ce0ba6d1979a..fa9c1cbffae3 100644 --- a/drivers/gpu/drm/msm/msm_fbdev.c +++ b/drivers/gpu/drm/msm/msm_fbdev.c @@ -4,6 +4,8 @@ * Author: Rob Clark */ +#include + #include #include #include @@ -23,6 +25,10 @@ module_param(fbdev, bool, 0600); * fbdev funcs, to implement legacy fbdev interface on top of drm driver */ +FB_GEN_DEFAULT_DEFERRED_SYS_OPS(msm_fbdev, + drm_fb_helper_damage_range, + drm_fb_helper_damage_area) + static int msm_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma) { struct drm_fb_helper *helper = (struct drm_fb_helper *)info->par; @@ -52,16 +58,9 @@ static void msm_fbdev_fb_destroy(struct fb_info *info) static const struct fb_ops msm_fb_ops = { .owner = THIS_MODULE, + __FB_DEFAULT_DEFERRED_OPS_RDWR(msm_fbdev), DRM_FB_HELPER_DEFAULT_OPS, - - /* Note: to properly handle manual update displays, we wrap the - * basic fbdev ops which write to the framebuffer - */ - .fb_read = drm_fb_helper_sys_read, - .fb_write = drm_fb_helper_sys_write, - .fb_fillrect = drm_fb_helper_sys_fillrect, - .fb_copyarea = drm_fb_helper_sys_copyarea, - .fb_imageblit = drm_fb_helper_sys_imageblit, + __FB_DEFAULT_DEFERRED_OPS_DRAW(msm_fbdev), .fb_mmap = msm_fbdev_mmap, .fb_destroy = msm_fbdev_fb_destroy, };