From patchwork Mon Dec 9 12:29:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Yan X-Patchwork-Id: 13899489 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 21A71E77180 for ; Mon, 9 Dec 2024 12:30:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F385F10E70D; Mon, 9 Dec 2024 12:30:11 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=163.com header.i=@163.com header.b="eK72myrv"; dkim-atps=neutral Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.4]) by gabe.freedesktop.org (Postfix) with ESMTP id F3AD110E70B for ; Mon, 9 Dec 2024 12:30:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-ID:MIME-Version; bh=Uexre qH3M5KxsOjGic5xeNRHOajr4xlYzUnHlICmxAQ=; b=eK72myrvcmimG1aAV3rD5 KCyinKCO3fSU7FORWspw1Gn++ng4jqNwjhKe53wqDYh0lWRm7XNTp02b+rV5RIwA 1rinoY32ZFpKmHa/wio4p7jttloiarO3ecNCNG4EPi2x8GKG/eSGUDIiPkSgZECY 54lHEPcir6M/h4B0K6dI74= Received: from ProDesk.. (unknown [58.22.7.114]) by gzsmtp1 (Coremail) with SMTP id PCgvCgD3Woe44lZnubZICA--.5849S9; Mon, 09 Dec 2024 20:29:55 +0800 (CST) From: Andy Yan To: heiko@sntech.de Cc: hjc@rock-chips.com, krzk+dt@kernel.org, s.hauer@pengutronix.de, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, derek.foreman@collabora.com, detlev.casanova@collabora.com, Andy Yan Subject: [PATCH v5 04/18] drm/rockchip: vop2: Fix the windows switch between different layers Date: Mon, 9 Dec 2024 20:29:17 +0800 Message-ID: <20241209122943.2781431-8-andyshrk@163.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241209122943.2781431-1-andyshrk@163.com> References: <20241209122943.2781431-1-andyshrk@163.com> MIME-Version: 1.0 X-CM-TRANSID: PCgvCgD3Woe44lZnubZICA--.5849S9 X-Coremail-Antispam: 1Uf129KBjvJXoWxZw4fWF4DAFW5Cr17Kw4xtFb_yoW5CF13pF 15WrWYgw4UKF4aqF9rtr48uF4Yy397Gay7W3Wxtw1rGa48tr1DJan8Ar9ayryUGFn3uryj yr1Uur909FWUtF7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jsF4iUUUUU= X-Originating-IP: [58.22.7.114] X-CM-SenderInfo: 5dqg52xkunqiywtou0bp/1tbiqQqwXmdW3c3WHAACsk X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Andy Yan Every layer of vop2 should bind a window, and we also need to make sure that this window is not used by other layer. 0x5 is a reserved layer sel value on rk3568, but it will select Cluster3 on rk3588, configure unused layers to 0x5 will lead alpha blending error on rk3588. When we bind a window from layerM to layerN, we move the old window on layerN to layerM. Fixes: 604be85547ce ("drm/rockchip: Add VOP2 driver") Tested-by: Derek Foreman Signed-off-by: Andy Yan --- (no changes since v1) drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 38 +++++++++++++++----- 1 file changed, 29 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c index 1f0fa153c62e..dc4edd65bc9e 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c @@ -2541,7 +2541,9 @@ static void vop2_setup_layer_mixer(struct vop2_video_port *vp) struct drm_plane *plane; u32 layer_sel = 0; u32 port_sel; - unsigned int nlayer, ofs; + u8 old_layer_id; + u8 layer_sel_id; + unsigned int ofs; u32 ovl_ctrl; int i; struct vop2_video_port *vp0 = &vop2->vps[0]; @@ -2585,9 +2587,28 @@ static void vop2_setup_layer_mixer(struct vop2_video_port *vp) for (i = 0; i < vp->id; i++) ofs += vop2->vps[i].nlayers; - nlayer = 0; drm_atomic_crtc_for_each_plane(plane, &vp->crtc) { struct vop2_win *win = to_vop2_win(plane); + struct vop2_win *old_win; + + /* + * Find the layer this win bind in old state. + */ + for (old_layer_id = 0; old_layer_id < vop2->data->win_size; old_layer_id++) { + layer_sel_id = (layer_sel >> (4 * old_layer_id)) & 0xf; + if (layer_sel_id == win->data->layer_sel_id) + break; + } + + /* + * Find the win bind to this layer in old state + */ + for (i = 0; i < vop2->data->win_size; i++) { + old_win = &vop2->win[i]; + layer_sel_id = (layer_sel >> (4 * (plane->state->normalized_zpos + ofs))) & 0xf; + if (layer_sel_id == old_win->data->layer_sel_id) + break; + } switch (win->data->phys_id) { case ROCKCHIP_VOP2_CLUSTER0: @@ -2636,13 +2657,12 @@ static void vop2_setup_layer_mixer(struct vop2_video_port *vp) 0x7); layer_sel |= RK3568_OVL_LAYER_SEL__LAYER(plane->state->normalized_zpos + ofs, win->data->layer_sel_id); - nlayer++; - } - - /* configure unused layers to 0x5 (reserved) */ - for (; nlayer < vp->nlayers; nlayer++) { - layer_sel &= ~RK3568_OVL_LAYER_SEL__LAYER(nlayer + ofs, 0x7); - layer_sel |= RK3568_OVL_LAYER_SEL__LAYER(nlayer + ofs, 5); + /* + * When we bind a window from layerM to layerN, we also need to move the old + * window on layerN to layerM to avoid one window selected by two or more layers. + */ + layer_sel &= ~RK3568_OVL_LAYER_SEL__LAYER(old_layer_id, 0x7); + layer_sel |= RK3568_OVL_LAYER_SEL__LAYER(old_layer_id, old_win->data->layer_sel_id); } vop2_writel(vop2, RK3568_OVL_LAYER_SEL, layer_sel);