Hi Mauro, This patch series consists of the first 50 patches of the main patch series adding support for VIDIOC_DELETE_BUFS: https://patchwork.linuxtv.org/project/linux-media/list/?series=11627 These first 50 patches add support for more than 32 buffers (if the driver indicates support for that), and converts drivers that directly access vb2_buffer or vb2_queue fields (num_buffers, bufs) to use accessor functions. This prepares the media subsystem for the next future step: deleting buffers. Several test drivers are adapted to allow more than 32 buffers, and so is the verisilicon driver. A v4l-utils patch adding support for testing more than 32 buffers is here: https://patchwork.linuxtv.org/project/linux-media/patch/20231107104132.445705-3-benjamin.gaignard@xxxxxxxxxxxxx/ That will be merged in v4l-utils once this PR is merged in staging. Before the remaining 6 patches can be merged there is some more cleanup that needs to happen first relating to how drivers (ab)use min_buffers_needed and how they implement 'I need at least X buffers' in various ways. Regards, Hans The following changes since commit b85ea95d086471afb4ad062012a4d73cd328fa86: Linux 6.7-rc1 (2023-11-12 16:19:07 -0800) are available in the Git repository at: git://linuxtv.org/hverkuil/media_tree.git tags/br-v6.8e for you to fetch changes up to d56a3f47f38e5aca0f6f1bd933ec4a6ba2339bb5: media: verisilicon: vp9: Allow to change resolution while streaming (2023-11-13 13:28:56 +0100) ---------------------------------------------------------------- Tag branch ---------------------------------------------------------------- Benjamin Gaignard (50): media: videobuf2: Rename offset parameter media: videobuf2: Rework offset 'cookie' encoding pattern media: videobuf2: Stop spamming kernel log with all queue counter media: videobuf2: Use vb2_buffer instead of index media: videobuf2: Access vb2_queue bufs array through helper functions media: videobuf2: Remove duplicated index vs q->num_buffers check media: videobuf2: Add helper to get queue number of buffers media: videobuf2: Use vb2_get_num_buffers() helper media: amphion: Use vb2_get_buffer() instead of directly access to buffers array media: amphion: Stop direct calls to queue num_buffers field media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access to buffers array media: mediatek: vdec: Remove useless loop media: mediatek: vcodec: Stop direct calls to queue num_buffers field media: sti: hva: Remove useless check media: visl: Use vb2_get_buffer() instead of directly access to buffers array media: atomisp: Use vb2_get_buffer() instead of directly access to buffers array media: atomisp: Stop direct calls to queue num_buffers field media: dvb-core: Use vb2_get_buffer() instead of directly access to buffers array media: dvb-core: Do not initialize twice queue num_buffer field media: dvb-frontends: rtl2832: Stop direct calls to queue num_buffers field media: pci: dt3155: Remove useless check media: pci: tw686x: Stop direct calls to queue num_buffers field media: pci: cx18: Stop direct calls to queue num_buffers field media: pci: netup_unidvb: Stop direct calls to queue num_buffers field media: pci: tw68: Stop direct calls to queue num_buffers field media: i2c: video-i2c: Stop direct calls to queue num_buffers field media: coda: Stop direct calls to queue num_buffers field media: nxp: Stop direct calls to queue num_buffers field media: verisilicon: Stop direct calls to queue num_buffers field media: test-drivers: Stop direct calls to queue num_buffers field media: imx: Stop direct calls to queue num_buffers field media: meson: vdec: Stop direct calls to queue num_buffers field touchscreen: sur40: Stop direct calls to queue num_buffers field sample: v4l: Stop direct calls to queue num_buffers field media: cedrus: Stop direct calls to queue num_buffers field media: nuvoton: Stop direct calls to queue num_buffers field media: renesas: Stop direct calls to queue num_buffers field media: ti: Stop direct calls to queue num_buffers field media: usb: airspy: Stop direct calls to queue num_buffers field media: usb: cx231xx: Stop direct calls to queue num_buffers field media: usb: hackrf: Stop direct calls to queue num_buffers field media: usb: usbtv: Stop direct calls to queue num_buffers field media videobuf2: Be more flexible on the number of queue stored buffers media: core: Report the maximum possible number of buffers for the queue media: test-drivers: vivid: Increase max supported buffers for capture queues media: test-drivers: vicodec: Increase max supported capture queue buffers media: verisilicon: Refactor postprocessor to store more buffers media: verisilicon: Store chroma and motion vectors offset media: verisilicon: g2: Use common helpers to compute chroma and mv offsets media: verisilicon: vp9: Allow to change resolution while streaming Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst | 8 +- Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 + drivers/input/touchscreen/sur40.c | 5 +- drivers/media/common/videobuf2/videobuf2-core.c | 489 ++++++++++++++++++++++--------------- drivers/media/common/videobuf2/videobuf2-v4l2.c | 85 ++++--- drivers/media/dvb-core/dvb_vb2.c | 19 +- drivers/media/dvb-frontends/rtl2832_sdr.c | 5 +- drivers/media/i2c/video-i2c.c | 5 +- drivers/media/pci/cx18/cx18-streams.c | 5 +- drivers/media/pci/dt3155/dt3155.c | 2 - drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 5 +- drivers/media/pci/tw68/tw68-video.c | 5 +- drivers/media/pci/tw686x/tw686x-video.c | 5 +- drivers/media/platform/amphion/vpu_dbg.c | 30 ++- drivers/media/platform/amphion/vpu_v4l2.c | 4 +- drivers/media/platform/chips-media/coda-common.c | 2 +- drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +- drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +- drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +- drivers/media/platform/nuvoton/npcm-video.c | 2 +- drivers/media/platform/nxp/imx7-media-csi.c | 7 +- drivers/media/platform/renesas/rcar_drif.c | 5 +- drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +- drivers/media/platform/ti/am437x/am437x-vpfe.c | 5 +- drivers/media/platform/ti/cal/cal-video.c | 5 +- drivers/media/platform/ti/davinci/vpif_capture.c | 5 +- drivers/media/platform/ti/davinci/vpif_display.c | 5 +- drivers/media/platform/ti/omap/omap_vout.c | 5 +- drivers/media/platform/verisilicon/hantro.h | 9 +- drivers/media/platform/verisilicon/hantro_drv.c | 4 +- drivers/media/platform/verisilicon/hantro_g2.c | 14 ++ drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c | 18 +- drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-- drivers/media/platform/verisilicon/hantro_hw.h | 7 +- drivers/media/platform/verisilicon/hantro_postproc.c | 95 +++++-- drivers/media/platform/verisilicon/hantro_v4l2.c | 26 +- drivers/media/test-drivers/vicodec/vicodec-core.c | 1 + drivers/media/test-drivers/visl/visl-dec.c | 32 ++- drivers/media/test-drivers/vivid/vivid-core.c | 14 ++ drivers/media/test-drivers/vivid/vivid-meta-cap.c | 3 - drivers/media/test-drivers/vivid/vivid-meta-out.c | 5 +- drivers/media/test-drivers/vivid/vivid-touch-cap.c | 5 +- drivers/media/test-drivers/vivid/vivid-vbi-cap.c | 3 - drivers/media/test-drivers/vivid/vivid-vbi-out.c | 3 - drivers/media/test-drivers/vivid/vivid-vid-cap.c | 3 - drivers/media/test-drivers/vivid/vivid-vid-out.c | 5 +- drivers/media/usb/airspy/airspy.c | 5 +- drivers/media/usb/cx231xx/cx231xx-417.c | 5 +- drivers/media/usb/cx231xx/cx231xx-video.c | 5 +- drivers/media/usb/hackrf/hackrf.c | 5 +- drivers/media/usb/usbtv/usbtv-video.c | 5 +- drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 10 +- drivers/media/v4l2-core/v4l2-ioctl.c | 4 +- drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 4 +- drivers/staging/media/imx/imx-media-capture.c | 7 +- drivers/staging/media/meson/vdec/vdec.c | 13 +- drivers/staging/media/sunxi/cedrus/cedrus_h264.c | 9 +- drivers/staging/media/sunxi/cedrus/cedrus_h265.c | 9 +- include/media/videobuf2-core.h | 39 ++- include/uapi/linux/videodev2.h | 7 +- samples/v4l/v4l2-pci-skeleton.c | 5 +- 61 files changed, 698 insertions(+), 450 deletions(-)
