From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 3202A2D5C68 for ; Tue, 14 Jul 2026 04:28:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784003305; cv=none; b=EtG6ADzbdc50WiSGzOYS7Vvjpgnq6mpHG8Cizjz/8DOzbzfxayAcwk3oXCZR8dHLlCnkOpaGiwHD1e8/U3dYE6gHwWvvevYQ8pBOMUQEz/MDNrcWQz0tODhqTu3hljFgn5Ri8Cd3fAd7qILK+PvLl7Kk90+teV4T5xljzeYwPOo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784003305; c=relaxed/simple; bh=BpdDvnS/3JQwR+hmDLbJAmbTdHlLpQQqf+n5ckydQ8U=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=nfhIzqa+i71ZqYUUCraoboqSg0j8EHvJYNXZTs1kR439x31nftyDQSkswYj2OXTHgBuSnMMvT/vMGPWUZFN0YjVCMaWqITL74xJsGra18LQ2tCqsgj7U4vdncUk+KwDthGlsib8xxAuifi9H+iCw2FmXaCpHQx7IDlEdDBpmdw4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=JPVr2H3F; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="JPVr2H3F" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1784003303; x=1815539303; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=BpdDvnS/3JQwR+hmDLbJAmbTdHlLpQQqf+n5ckydQ8U=; b=JPVr2H3FW8o3k6a5DT4E2LnvQNKvf/4YZyGOzmzQJEstaBYoZq18Q7Pk lhSg5WdNOtXWntnQSqUbiQfXUThPNZDux+RPhF3+Vm5lLlHnrJKoOln00 g733fPvyTNZNz+5DeP7cEuz76JIIDC21LokcgxvF2sqlOdIp/9gWkWXbj ZE5TRFqUvSI5zck3ARBlBxsLIxJt/2mAqD8YnI/K4UPVGDfPYRZvOHBT1 BNPyansnpBQVb3rigHU9V2UtOCdwUYWexOTTVd0nkAK7FQNB3xmQYY9YU 4IsqjaFVhvIhA7mAFKBndUYh8jPSCo/6emL8q+ozNc/iYIeZxLVprSqxF w==; X-CSE-ConnectionGUID: 3W/8oKvvTea9fTIpkMeXtg== X-CSE-MsgGUID: AagC9PjNSP6NlBjhnfPDwQ== X-IronPort-AV: E=McAfee;i="6800,10657,11841"; a="88297013" X-IronPort-AV: E=Sophos;i="6.25,163,1779174000"; d="scan'208";a="88297013" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jul 2026 21:28:22 -0700 X-CSE-ConnectionGUID: ef5UR8ujS+Wyfe6V7diKHA== X-CSE-MsgGUID: IkJwYStrQcKHnimKpiOXGA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,163,1779174000"; d="scan'208";a="255243092" Received: from kandpal-x299-ud4-pro.iind.intel.com ([10.190.239.10]) by orviesa008.jf.intel.com with ESMTP; 13 Jul 2026 21:28:15 -0700 From: Suraj Kandpal To: freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org, kernel-list@raspberrypi.com, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: uma.shankar@intel.com, arun.r.murthy@intel.com, abhinav.kumar@linux.dev, tzimmermann@suse.de, sean@poorly.ru, marijn.suijten@somainline.org, laurent.pinchart+renesas@ideasonboard.com, dave.stevenson@raspberrypi.com, tomi.valkeinen+renesas@ideasonboard.com, kieran.bingham+renesas@ideasonboard.com, louis.chauvet@bootlin.com, kernel-dev@igalia.com, John.Harrison@Igalia.com, Suraj Kandpal Subject: [PATCH v6 0/7] Refactor drm_writeback_connector structure Date: Tue, 14 Jul 2026 09:57:58 +0530 Message-Id: <20260714042805.77934-1-suraj.kandpal@intel.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Some drivers cannot work with the current design where the connector is embedded within the drm_writeback_connector such as intel and some drivers that can get it working end up adding a lot of checks all around the code to check if it's a writeback conenctor or not. This is due to the inheritance limitation in C. This series intends to solve it by moving the drm_writeback_connector within the drm_connector and remove the drm_connector base which was in drm_writeback_connector. This is done in union with hdmi connector within drm_connector to save memory and since drm_connector cannot be both hdmi and writeback it serves is well. A RFC version was floated and discussion had taken place at [1] which kicked of this more cleaner series. We do all other required modifications that come with these changes along with addition of new function which returns the drm_connector when drm_writeback_connector is present. This series also contains some writeback API cleanups as a consequence of writeback connector moving into drm_connector All drivers will be expected to allocate the drm_connector. This discussion was tiggered from [2] and sits on top of Dmitry's series see [3]. [1] https://patchwork.freedesktop.org/series/152758/ [2] https://patchwork.freedesktop.org/series/152106/ [3] https://patchwork.freedesktop.org/series/152420/ Signed-off-by: Suraj Kandpal Suraj Kandpal (7): drm: writeback: Refactor drm_writeback_connector structure drm: writeback: Modify writeback init helpers drm: writeback: Modify drm_writeback_queue_job helper drm: writeback: Modify drm_writeback_signal_completion helper drm: writeback: Modify drm_writeback_get_out_fence helper drm: writeback: Modify prepare_writeback_job helper drm: writeback: Modify cleanup_writeback_job helper .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 +- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 2 +- .../display/amdgpu_dm/amdgpu_dm_connector.c | 4 +- .../drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c | 12 +-- .../gpu/drm/arm/display/komeda/komeda_crtc.c | 2 +- .../gpu/drm/arm/display/komeda/komeda_kms.h | 6 +- .../arm/display/komeda/komeda_wb_connector.c | 11 +-- drivers/gpu/drm/arm/malidp_crtc.c | 2 +- drivers/gpu/drm/arm/malidp_drv.h | 2 +- drivers/gpu/drm/arm/malidp_mw.c | 7 +- drivers/gpu/drm/drm_atomic_uapi.c | 4 +- drivers/gpu/drm/drm_writeback.c | 47 +++++++----- .../drm/msm/disp/dpu1/dpu_encoder_phys_wb.c | 9 ++- drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c | 10 +-- drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.h | 4 +- .../gpu/drm/renesas/rcar-du/rcar_du_crtc.h | 6 +- .../drm/renesas/rcar-du/rcar_du_writeback.c | 15 ++-- drivers/gpu/drm/vc4/vc4_txp.c | 6 +- drivers/gpu/drm/vkms/vkms_drv.h | 2 +- drivers/gpu/drm/vkms/vkms_writeback.c | 15 ++-- include/drm/drm_connector.h | 69 ++++++++++++++++- include/drm/drm_modeset_helper_vtables.h | 4 +- include/drm/drm_writeback.h | 76 ++----------------- 23 files changed, 160 insertions(+), 161 deletions(-) -- 2.34.1