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Thu, 29 Oct 2026 16:20:56 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 6006500186905104022 From: Chaoyi Chen To: Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Andy Yan , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Chaoyi Chen , Cristian Ciocaltea , Sebastian Reichel Subject: [PATCH v2 0/3] drm/rockchip: vop2: Add 8K support for RK3588 vop2 Date: Thu, 29 Oct 2026 16:14:26 +0800 Message-Id: <20261029081429.862-1-kernel@airkyi.com> X-Mailer: git-send-email 2.17.1 X-QQ-SENDSIZE: 520 Feedback-ID: esmtpsz:airkyi.com:qybglogicsvrgz:qybglogicsvrgz6b-0 X-QQ-XMAILINFO: MFPt68G4ezWI3vHWYd5yuX1AobbLrJ9Fvp0jEST0vNGkKxjs11t7TmFi GEdJqwAQ8/cejyS/Yj+KK18Pr52dPN/2IS4bLekZwnqyTf9yHBEBvQiR2eBDKZjXXbkSzES D2OVvywrbeKBNjTqJEjfuM/S5yMiQRYE2AHLqIzLzHExHNM7ST9VRmh369z/TUosWVYQIY9 AelFgW26tovAX/8PvyVQjyO02qHvS8AMPDZxwa4wJAocWYWlyr2/vQs5n/GF0N1ZgsiRHgA TNaGbUwZn5hr0BRew0+8JSoeftVtgvddP3iDeAe/DmgnwTp42D9MOcLmVdyWDv75R2si2rI 6J+hK2et3VfK8hPmdONr3u1N5oRuumVt+x25qO4SEiE7JiPX868dL318XvSUmgDEjbpVv8i usWmZfO8dpw31dmW5gEf9bT23WH5JhcutlhAolZe/ZYwJs6pVWHL8UfjZGfX2kzCFMxUUtQ lgJNq/khoDPoksJzT0srVGB96AUF9XL9yMD0HwAc2kEY+hWiLLMqNRxChZHzxrjL2TnSoW+ n6uIBm/Q+EU0wBwrrUz9psGSzKDEC9JpZVr8P/sLxl8Iusdl3A2ymA3BeYEe1wvImCvZlIi +h5TZ980nRIGusevv3S2LyQS6dyeksWaowH/M2kmSJqIumBa/w/5gsqmsyN/tKVB3bDVxzw yBneqGYsUhucEfm4QdigV5LEMzql7fK4WZGebGsaQX5YUcONIjZ/tYK9KuYEtCBigvja2Ju DHWLGrJ20OZcZygA/U7F13TGH7GGl+l4jThloKfVN6e4Tdd1jmn0j1nDOtU7Fe64wgsWHI3 kWdfa3/2eLfbwnL/2hMkThQO1J0Ein6+lVYRwi8NweZhyvd+3XxgjbV1uvoENEe6L8j+rSY s/Luijkn6eD3YmlVMAt8GhZ6XcXQzOnzTSDIBtK5TCJGGZFFfEfu8lajqkYOFU6jyrnkFbP jGc5/+0LBq9YGQXVI2aniR0mZcqOzNZShvtZRlzSGMS6HRf4pBiALCDpIyl+8Jz/IVAIJcK ei7fQh3/6DSh0em3XKgD4yenP5tdI= X-QQ-XMRINFO: NI4Ajvh11aEjEMj13RCX7UuhPEoou2bs1g== X-QQ-RECHKSPAM: 0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261029_012212_532475_2DA3E203 X-CRM114-Status: GOOD ( 11.28 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 X-Archived-By: From: Chaoyi Chen Hi, This series adds support for 8K output on the RK3588 VOP2. HDMI is not ready yet, but I believe many people might be interested in this. 8K output on the RK3588 is done by splicing two VPs together, with VP0 outputting the left half of the screen and VP1 the right half. In addition, 8K planes have to be split in half as well to stay within the width limit of a single plane. Similarly, there are a few post-processing details that need to be handled. Note that splice mode is not only usable for 8K output. This means the mode can be tested at 4K and even lower resolutions, by simply changing this one line: -#define VOP2_MAX_VP_OUTPUT_WIDTH 4096 +#define VOP2_MAX_VP_OUTPUT_WIDTH (3840 / 2) /* for 4K test */ And yes, this has been tested at 4K over HDMI on the RK3588 EVB1 :) Changes in v2: - Link to v1: https://lore.kernel.org/all/20261022071737.508-1-kernel@airkyi.com/ - Missing removal of the replaced line(Heiko). - vop2_win_get_pstate(): use the left window's state only in splice mode(Sashiko). - Reject splice windows already in use by another CRTC(Sashiko). - Check the splice partner via drm_atomic_get_crtc_state() instead of the runtime flag and unlocked read(Sashiko). - Set splice_mode_right/left_vp before the error paths of vop2_crtc_atomic_enable()(Sashiko). - Validate each split half against the min width 4 and max input width; align NV20/NV30 like NV15(Sashiko). - Latch overlay registers at the left VP's vsync; don't wait for the partner's own cfg-done(Sashiko). - Program the color key on the window actually being updated(Sashiko). Cc: Cristian Ciocaltea Cc: Sebastian Reichel --- Chaoyi Chen (3): drm/rockchip: vop2: Use drm_format_info_min_pitch() for plane offsets drm/rockchip: vop2: Skip UV plane setup for packed YUV formats drm/rockchip: vop2: Support 8K output by splicing two video ports drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 5 + drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 535 +++++++++++++++++-- drivers/gpu/drm/rockchip/rockchip_drm_vop2.h | 66 ++- drivers/gpu/drm/rockchip/rockchip_vop2_reg.c | 204 +++++-- 4 files changed, 721 insertions(+), 89 deletions(-) -- 2.53.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 038F3606A31C for ; Thu, 29 Oct 2026 08:22:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" X-Spam-Status: No, score=-11.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 From: Chaoyi Chen Hi, This series adds support for 8K output on the RK3588 VOP2. HDMI is not ready yet, but I believe many people might be interested in this. 8K output on the RK3588 is done by splicing two VPs together, with VP0 outputting the left half of the screen and VP1 the right half. In addition, 8K planes have to be split in half as well to stay within the width limit of a single plane. Similarly, there are a few post-processing details that need to be handled. Note that splice mode is not only usable for 8K output. This means the mode can be tested at 4K and even lower resolutions, by simply changing this one line: -#define VOP2_MAX_VP_OUTPUT_WIDTH 4096 +#define VOP2_MAX_VP_OUTPUT_WIDTH (3840 / 2) /* for 4K test */ And yes, this has been tested at 4K over HDMI on the RK3588 EVB1 :) Changes in v2: - Link to v1: https://lore.kernel.org/all/20261022071737.508-1-kernel@airkyi.com/ - Missing removal of the replaced line(Heiko). - vop2_win_get_pstate(): use the left window's state only in splice mode(Sashiko). - Reject splice windows already in use by another CRTC(Sashiko). - Check the splice partner via drm_atomic_get_crtc_state() instead of the runtime flag and unlocked read(Sashiko). - Set splice_mode_right/left_vp before the error paths of vop2_crtc_atomic_enable()(Sashiko). - Validate each split half against the min width 4 and max input width; align NV20/NV30 like NV15(Sashiko). - Latch overlay registers at the left VP's vsync; don't wait for the partner's own cfg-done(Sashiko). - Program the color key on the window actually being updated(Sashiko). Cc: Cristian Ciocaltea Cc: Sebastian Reichel --- Chaoyi Chen (3): drm/rockchip: vop2: Use drm_format_info_min_pitch() for plane offsets drm/rockchip: vop2: Skip UV plane setup for packed YUV formats drm/rockchip: vop2: Support 8K output by splicing two video ports drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 5 + drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 535 +++++++++++++++++-- drivers/gpu/drm/rockchip/rockchip_drm_vop2.h | 66 ++- drivers/gpu/drm/rockchip/rockchip_vop2_reg.c | 204 +++++-- 4 files changed, 721 insertions(+), 89 deletions(-) -- 2.53.0 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip