From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=192.198.163.13 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794291418; b=i9/bx1jPxK0BYWzM7xI6E3Y8PxHmjmf/dTNZiujuNDMZ/jcXsopJ3RZK8438dA8u8L4J ZGo8zJHyh9Qe00FOMayIRo8BLMkWW4NUnbl8RQj1l5exJlCop44921JvbRtNLVZbWhb8c 1U1GjAl0hRGq++hMnPAOccHjOz2Z4FVW/n4UTv2xeonXiEc1bLJTyTozDskpy++DrAG4A tVmDmqaOer3ZynvH3FQ+cnbEr1okCYne1Jmjq86/HSy4s3nF/D1m2EsfAvL0j3zOnTNcM uzvu1hQ3h0gISaZxcWh7mqP7f9RpsE+KXA1fllaocjAYfjVJJIQH4q2Hn/remiPDFmg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794291418; h=DMARC-Filter:DKIM-Signature:X-CSE-ConnectionGUID:X-CSE-MsgGUID: X-IronPort-AV:X-IronPort-AV:Received:X-CSE-ConnectionGUID: X-CSE-MsgGUID:X-ExtLoop1:X-IronPort-AV:Received:From:To:Cc:Subject: Date:Message-Id:X-Mailer:MIME-Version:Content-Transfer-Encoding; bh=7UVzCETUwwDQ1bZ3huBy9ykqwSndirYXcMQIVH4c0f0=; b=dUA+xXcbYsitKdhn5Y+lo9/5igWc/B6oLesxIq5eVnVp4yWsTdtAJE5Af1ywC+Cgh1FE dRZ3wwMWUh7vkUqYM8E7n3E1FA4gOv1BHgn/OVbKkwBYeu4N3GRSQlJSRaqebXtBj8Fjp kThTrtiPQcQoQWO/bIgTooze7E0+VDHCpVtQyLg57rcjVffQH3qWQ5DivdmxSVSZz8WeP vN8qk8riDY3CEqyaxwdJ+xOnV62BJ3VYw7L+6liHsxpHO2aSWCsVeSZCQCsqleE3txgLe bAO7XM2HbQhOA470OABQgpl4Z7vQwFK4xCagZwfG2JX9JqI9L2/rYrNzy2TKuYS/frg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=iPQfytdY; arc=none smtp.remote-ip=192.198.163.13 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C4D6606A335; Tue, 10 Nov 2026 06:16:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 5C4D6606A335 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, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=iPQfytdY DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1794291416; x=1825827416; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=cm3IqdqaTmBiSSYtxE7H1ViyE7GZRQgg5cV+/V8g9bQ=; b=iPQfytdYKWRJDjHaH3wVKsY9VtHAg6p1cHXCVbAEfGUjs6OaJ2cFeMNM 0uqtlgN283TqfI9A7g8UtU0QBenpLuZk0UiBJPDE2ag3J+5emeE4cSGtP rpSpPS9j4GuNsqrCaWiKB10bONR3uO2XSCj/LPWxNNkN8NemQGd3AEIHd dKhBccDTI45qhvdWzoCGZvLFZjim9z/rRRaPzWo40rzxrvl9bR8RtZtsZ 91pmBziXeU2q+JCv5SMP2HOMTX/w7khf6DV46lbUXQZHqOfWgz7Y6p8hi pAmUKTMk3MRAIlaAa9aaqp5OPOAKtnz4f+Qe1Q0doGlDsPLGo93365BLg A==; X-CSE-ConnectionGUID: f5E4XeQdTUqGQSDZvZVRvg== X-CSE-MsgGUID: ickevMroRSGGCdgT2BmzsQ== X-IronPort-AV: E=McAfee;i="6800,10657,11961"; a="3020901" X-IronPort-AV: E=Sophos;i="6.27,205,1787036400"; d="scan'208";a="3020901" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2026 22:16:55 -0800 X-CSE-ConnectionGUID: AZOeAwC9RgyKAVcptfOVig== X-CSE-MsgGUID: nW87YRJVR++h+MhDXW6PQA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,205,1787036400"; d="scan'208";a="7930910" Received: from kandpal-x299-ud4-pro.iind.intel.com ([10.190.239.10]) by orviesa004.jf.intel.com with ESMTP; 09 Nov 2026 22:16:49 -0800 From: Suraj Kandpal To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: dmitry.baryshkov@oss.qualcomm.com, John.Harrison@Igalia.com, kernel-dev@igalia.com, alex.hung@amd.com, liviu.dudau@arm.com, louis.chauvet@bootlin.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, laurent.pinchart+renesas@ideasonboard.com, tomi.valkeinen+renesas@ideasonboard.com, kieran.bingham+renesas@ideasonboard.com, dave.stevenson@raspberrypi.com, mcanal@igalia.com, kernel-list@raspberrypi.com, uma.shankar@intel.com, arun.r.murthy@intel.com, Suraj Kandpal Subject: [PATCH v7 0/8] Refactor drm_writeback_connector structure Date: Tue, 10 Nov 2026 11:46:29 +0530 Message-Id: <20261110061637.2500929-1-suraj.kandpal@intel.com> X-Mailer: git-send-email 2.34.1 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list 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 Dmitry Baryshkov (1): drm: writeback: drop excess connector initialization functions 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 | 8 +- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 3 +- .../display/amdgpu_dm/amdgpu_dm_connector.c | 4 +- .../drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c | 37 ++-- .../drm/amd/display/amdgpu_dm/amdgpu_dm_wb.h | 4 +- .../tests/amdgpu_dm_connector_test.c | 6 +- .../display/amdgpu_dm/tests/amdgpu_dm_test.c | 2 +- .../amdgpu_dm/tests/amdgpu_dm_wb_test.c | 10 +- .../gpu/drm/arm/display/komeda/komeda_crtc.c | 2 +- .../gpu/drm/arm/display/komeda/komeda_kms.h | 9 +- .../arm/display/komeda/komeda_wb_connector.c | 37 ++-- drivers/gpu/drm/arm/malidp_crtc.c | 2 +- drivers/gpu/drm/arm/malidp_drv.h | 3 +- drivers/gpu/drm/arm/malidp_mw.c | 32 ++- drivers/gpu/drm/drm_atomic_uapi.c | 4 +- drivers/gpu/drm/drm_connector.c | 3 + drivers/gpu/drm/drm_crtc_internal.h | 3 + drivers/gpu/drm/drm_writeback.c | 193 ++++++------------ .../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 | 8 +- .../drm/renesas/rcar-du/rcar_du_writeback.c | 44 ++-- drivers/gpu/drm/vc4/vc4_txp.c | 16 +- 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 | 98 +-------- 29 files changed, 307 insertions(+), 334 deletions(-) -- 2.34.1