From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D81BC126C18; Wed, 5 Feb 2025 13:50:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738763426; cv=none; b=QT/1ldAe60eU1in42ASCkm+g9Sk6PMep/vN7SW5bMAuxGOBK8vPd20cmgE0+058dmuI4KpMRVNRPai41oZhoLj7aPwSMQJ9HktUTsdQkCqXhhfyyO8Crc0T9n5c8+rQ/LODGEpDMIzXT8seS1JHFB2kCzRJL/IpWkrKg5ctNwl8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738763426; c=relaxed/simple; bh=YE2wwlQVo9WNszqb7MnDd8HBXe2iAA32Wobv7D5qb84=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=K11XTl8UmQrdILglMifDUUgzlkYAUs11WCQVELvF0UjeUcCUdcvbJcEisngFXrsq/iMOPNPGQ4S+qBRwKj0SKk/gpqb22Y8mZM++tzctYNLZWM076pQ1FVXfmb78QffuWNMtp9imXHU6bqpf5k7CbNhXmK2mB8UZJ6Q+mrPNWeA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gZ1vKkcY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gZ1vKkcY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6FB5C4CED6; Wed, 5 Feb 2025 13:50:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1738763426; bh=YE2wwlQVo9WNszqb7MnDd8HBXe2iAA32Wobv7D5qb84=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gZ1vKkcYbyrYb/lanL2/2gGOunnaa0gXVsz3v2uLb0Z7OyMBzLY7nZ8p9fF8OpON7 2sk3OEU7zkmYVCdO3zurMleeTactG+xpw5BcymHw9KRGw5p6Z8UsmKSjeRHPvBNoJw uNY7uDNKO2zvh2MWnoQpNcAFaD3fNuaEIttJCvwc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Derek Foreman , Andy Yan , Heiko Stuebner , Sasha Levin Subject: [PATCH 6.6 031/393] drm/rockchip: vop2: Fix the windows switch between different layers Date: Wed, 5 Feb 2025 14:39:10 +0100 Message-ID: <20250205134421.494507685@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250205134420.279368572@linuxfoundation.org> References: <20250205134420.279368572@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andy Yan [ Upstream commit 0ca953ac226eaffbe1a795f5e517095a8d494921 ] 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 Signed-off-by: Heiko Stuebner Link: https://patchwork.freedesktop.org/patch/msgid/20241214081719.3330518-3-andyshrk@163.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 47 ++++++++++++++------ 1 file changed, 34 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c index 1295aaffe868a..724b75cfb6b5b 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c @@ -1924,7 +1924,10 @@ 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 layer_id; + u8 old_layer_id; + u8 layer_sel_id; + unsigned int ofs; u32 ovl_ctrl; int i; struct vop2_video_port *vp0 = &vop2->vps[0]; @@ -1968,9 +1971,30 @@ 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; + + layer_id = (u8)(plane->state->normalized_zpos + ofs); + + /* + * 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 * layer_id)) & 0xf; + if (layer_sel_id == old_win->data->layer_sel_id) + break; + } switch (win->data->phys_id) { case ROCKCHIP_VOP2_CLUSTER0: @@ -1999,17 +2023,14 @@ static void vop2_setup_layer_mixer(struct vop2_video_port *vp) break; } - layer_sel &= ~RK3568_OVL_LAYER_SEL__LAYER(plane->state->normalized_zpos + ofs, - 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); + layer_sel &= ~RK3568_OVL_LAYER_SEL__LAYER(layer_id, 0x7); + layer_sel |= RK3568_OVL_LAYER_SEL__LAYER(layer_id, win->data->layer_sel_id); + /* + * 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); -- 2.39.5